Exterior Caulking & Weathersealing Cost in Southern Maryland: 2026 Price Guide

By Gray & Sons Contracting · October 20, 2026

Exterior caulking and weathersealing in Southern Maryland costs $250 to $800 for a typical home in 2026, with the national average for a professional whole-house caulking job landing around $475. The full range runs from $100 to $150 for a targeted reseal of two or three windows and a door where the existing caulk has cracked and pulled away, up to $1,500 or more for a comprehensive whole-house weathersealing project that includes removing and replacing deteriorated caulk around every window, door, siding joint, foundation-to-sill junction, vent penetration, pipe entry, electrical box, and hose bib, combined with new weatherstripping on all exterior doors and operable windows. At the low end, recaulking a single window, removing the old bead, cleaning the joint, and applying a fresh line of exterior-grade silicone or polyurethane caulk, costs $30 to $75 in materials and labor, with the technician spending 15 to 30 minutes per window. At the high end, a full weathersealing package on a 2,500-square-foot two-story colonial with 20 windows, three exterior doors, 40 to 60 linear feet of siding-to-trim joints, foundation penetrations, and a dozen utility and vent openings can require 8 to 15 tubes of caulk, 4 to 6 hours of labor, and a total investment of $800 to $1,500 when the scope includes specialty sealants for dissimilar materials, backer rod installation in wide gaps, and weatherstripping replacement on all three doors.

Mid-October is the ideal window to address exterior caulking and weathersealing in Southern Maryland. Daytime temperatures in the Calvert, St. Mary's, and Charles County area during October average 60 to 72 degrees Fahrenheit, squarely within the optimal application range for every type of exterior caulk and sealant on the market. Most caulk products require application temperatures between 40 and 100 degrees Fahrenheit and cure best between 50 and 80 degrees, conditions that become unreliable by late November and don't return consistently until April. Sealing gaps and cracks before the first hard freeze, typically late November to mid-December in Southern Maryland, prevents cold air infiltration that drives up heating bills, stops moisture intrusion that causes wood rot, mold, and paint failure during the wet winter months, and eliminates the entry points that mice, stink bugs, boxelder beetles, and other overwintering pests use to get inside as temperatures drop. The U.S. Department of Energy estimates that air leaks through gaps around windows, doors, and building penetrations account for 25 to 30 percent of heating and cooling energy loss in a typical home, making caulking and weathersealing one of the highest-return investments a homeowner can make for both comfort and energy savings.

This guide covers the complete cost picture for exterior caulking and weathersealing in Southern Maryland: pricing by sealant type and application location, equipment versus installed cost analysis, regional factors specific to the tri-county area, DIY versus professional installation, real-world project scenarios with itemized costs, signs that your home's caulking needs attention, and the questions we hear most from homeowners across Waldorf, Prince Frederick, Leonardtown, and the surrounding communities.

Understanding Exterior Caulk and Weathersealing

Exterior caulking is the process of applying a flexible, weather-resistant sealant to the joints, gaps, and seams on the outside of a building where two surfaces meet or where a penetration passes through the building envelope. Every home has dozens, often hundreds, of these joints: where window frames meet siding, where door frames meet trim, where siding courses overlap or terminate at corners, where pipes and wires pass through exterior walls, where the foundation meets the sill plate, and where flashing meets roofing or siding materials. Each of these joints is a potential pathway for air, water, and pests to enter the building envelope.

Weathersealing is the broader term that includes caulking along with weatherstripping (compressible or spring-loaded seals around operable doors and windows), door sweeps, foam sealant for larger gaps, and backer rod for joints wider than 1/4 inch. A comprehensive weathersealing project addresses every point where conditioned indoor air can escape or unconditioned outdoor air can enter, from the visible gaps around a drafty front door to the hidden air pathways behind electrical outlets on exterior walls, through the sill plate where the wood framing sits on the concrete foundation, and around every utility penetration where a plumber, electrician, or HVAC installer cut a hole through the building envelope and never sealed it properly.

The distinction matters for pricing: caulking alone (sealing visible joints around windows, doors, and trim) is the most common project and falls in the $250 to $800 range for a typical home. A comprehensive weathersealing project that also includes weatherstripping, door sweeps, foam sealing of larger gaps, and backer rod installation pushes the range to $500 to $1,500.

Cost by Sealant Type

The type of caulk or sealant affects material cost, longevity, flexibility, paintability, and suitability for different surfaces and conditions. Choosing the right sealant for each application is critical, the wrong product in the wrong location is the most common cause of premature caulk failure.

Which Sealant for Which Location

The most common mistake homeowners and inexperienced contractors make is using one type of caulk everywhere. Each joint on a home has different requirements for flexibility, adhesion, moisture resistance, and UV exposure, and the sealant must match those requirements.

Cost by Application Location

Labor time, and therefore cost, varies significantly by location. A window joint at ground level on a single-story home is fast and easy to access. A dormer window on a two-story home requires a ladder and takes three to four times as long per joint. A foundation-to-sill joint requires removing dirt, debris, and old sealant from a joint that may be partially below grade.

Equipment vs. Installed Cost Breakdown

Here is a detailed breakdown of every cost component in a professional exterior caulking and weathersealing project.

Labor: 55% to 70% of Total Project Cost

Labor accounts for the majority of exterior caulking costs because the work is preparation-intensive. A proper caulk application requires completely removing the old, failed caulk, not caulking over it, cleaning the joint surfaces of dirt, mildew, loose paint, and old adhesive residue, allowing the joint to dry, applying backer rod if the gap exceeds 1/4 inch in width or depth, and then applying the new sealant in a continuous bead with proper tooling for a smooth, complete seal. Caulking over old caulk is a shortcut that leads to premature failure: the new caulk adheres to the old caulk (which has already lost its adhesion to the substrate) rather than bonding directly to the clean surfaces of the joint, resulting in peeling and separation within one to three years.

Bundling Economics

Like most home maintenance projects, exterior caulking benefits significantly from bundling, scheduling a comprehensive sealing project rather than addressing individual windows or doors one at a time.

The per-unit cost drops by 40 to 60 percent when bundling 10 or more openings versus a single-window service call, because the contractor's fixed costs, travel, setup, minimum fee, ladder deployment, are amortized across the full scope. A whole-house project also ensures that every joint is addressed in the same season, with the same sealant vintage and application conditions, rather than a patchwork of different years and products that age at different rates.

Regional Factors for Southern Maryland

Several factors specific to the Calvert, St. Mary's, and Charles County area affect exterior caulking needs, product selection, and the urgency of maintaining a tight building envelope.

Climate and Moisture Exposure

Southern Maryland's climate is particularly hard on exterior caulk. The combination of high summer humidity (70 to 85 percent average relative humidity from June through September), significant rainfall (42 to 48 inches annually), wide temperature swings (winter lows in the 20s to summer highs in the 90s, a 70-degree range that causes constant expansion and contraction in building materials), and regular freeze-thaw cycling from December through March creates conditions that stress sealant bonds year-round. Caulk that performs adequately in a dry, mild climate can fail years earlier in the tri-county area's demanding environment.

The freeze-thaw cycle is the primary killer of exterior caulk in Southern Maryland. Water that enters a cracked or separated caulk joint freezes overnight as temperatures drop below 32 degrees, expanding by roughly 9 percent in volume. That expansion forces the crack wider. When temperatures rise the next day, the ice melts and the now-wider crack admits even more water. Over the course of a winter with 40 to 60 freeze-thaw cycles, typical for the Calvert, St. Mary's, and Charles County area, a hairline crack in a caulk bead can become a gaping gap that admits wind, rain, and insects by spring.

Waterfront and Salt Air Exposure

Homes in the waterfront communities along the Chesapeake Bay and Patuxent River, Solomons, Lusby, Chesapeake Beach, North Beach, Drum Point, St. Inigoes, Ridge, Scotland, Piney Point, face the additional challenge of salt air exposure. Airborne salt accelerates the degradation of acrylic and latex-based sealants, causing them to become brittle and lose adhesion faster than in inland locations. Homeowners in these areas should use 100% silicone or polyurethane sealants for all exterior joints, these formulations resist salt air degradation significantly better than acrylic latex products. The premium is $2 to $4 per tube, negligible in the total project cost, but the difference in longevity can be five to ten additional years of effective service.

Age of Housing Stock

The housing stock across the tri-county area represents every decade from the 1950s to new construction. Homes built in the 1960s through 1980s, abundant in Waldorf, La Plata, Indian Head, Mechanicsville, Hughesville, and the older neighborhoods of Leonardtown and Lexington Park, were originally caulked with oil-based or early acrylic products that had a useful life of 5 to 15 years. Many of these homes have had their original caulk partially recaulked over the decades, often with mismatched products or by caulking over old material rather than removing it. The result is a patchwork of failed, partially failed, and marginally functional caulk joints that allows significant air and moisture infiltration. These homes benefit the most from a comprehensive strip-and-recaulk project that removes all existing caulk and starts fresh with modern, long-lasting sealant products.

Pest Pressure

Southern Maryland's warm climate and proximity to water support a robust population of overwintering pests, stink bugs, Asian lady beetles, boxelder bugs, and cluster flies, that seek entry into homes as temperatures drop in October and November. These insects need only a 1/16-inch gap to enter a home, and gaps around windows, doors, utility penetrations, and siding joints are their primary entry points. Mice need only a 1/4-inch gap, roughly the width of a pencil, to squeeze through. A comprehensive caulking project in October, before the pest migration peaks in November, eliminates these entry points and reduces the need for interior pest control throughout the winter. Homeowners in rural and semi-rural areas, Charlotte Hall, Chaptico, Hollywood, Avenue, Hughesville, Nanjemoy, where pest pressure from surrounding fields and woods is highest, see particular benefit from sealing every exterior gap before the first hard frost.

Energy Costs and Payback Period

The payback period for exterior caulking and weathersealing in Southern Maryland is exceptionally short. With average annual heating and cooling costs of $2,000 to $3,500 for a typical 2,000-square-foot home in the tri-county area (using electric heat pump, propane, or oil heat), and air leakage accounting for 25 to 30 percent of that energy loss, sealing the building envelope can reduce annual energy costs by $200 to $500. A $500 to $800 whole-house caulking project pays for itself in one to three heating and cooling seasons, making it one of the fastest-payback home improvements available, outperforming many insulation upgrades, window replacements, and HVAC equipment upgrades in terms of return on investment.

DIY vs. Professional Exterior Caulking

Exterior caulking is one of the most accessible home maintenance projects for a capable DIY homeowner, but there is a significant difference between applying a bead of caulk around one window and executing a whole-house weathersealing project to professional standards.

When DIY Is a Reasonable Option

DIY materials cost $3 to $12 per tube of caulk plus $10 to $15 for a caulk gun (a worthwhile investment over the cheapest $3 guns, which provide inconsistent pressure and messy results). A homeowner recaulking five windows and one door can complete the project for $30 to $75 in materials and two to four hours of labor. The most common DIY mistakes are: using the wrong caulk type for the application (interior acrylic latex on exterior joints, or silicone on a surface that will be painted), applying new caulk over old without removing the failed material first, cutting the caulk tube tip too large (creating a bead wider than the joint), failing to tool the bead (pressing it into the joint with a wet finger or caulk tool for proper adhesion and a smooth finish), and applying caulk to wet or dirty surfaces where adhesion will fail.

When Professional Installation Is the Clear Choice

Professional caulking at $250 to $800 for a typical home delivers thorough removal of all failed existing caulk, correct sealant selection for each joint type and exposure, proper surface preparation, backer rod installation where needed, clean tooled joints that look professional and perform for 15 to 30 years depending on sealant type, and identification of underlying problems, wood rot, damaged flashing, failed glazing, that would undermine a caulk-only repair. A professional also completes the project in one visit, ensuring that the entire building envelope is sealed before winter rather than a partial DIY project that gets interrupted and leaves half the house unfinished.

Sample Project Scenarios

These scenarios represent common exterior caulking and weathersealing projects in the tri-county area. All costs reflect 2026 pricing for materials and professional installation.

Scenario 1: Targeted Window and Door Reseal on a Ranch in Waldorf, $375

A homeowner in a 1988-built single-story ranch in Waldorf has noticed cold drafts around the living room picture window, two bedroom windows on the north side, and the front entry door during last winter's cold snaps. Inspection reveals that the original siliconized acrylic caulk around these four openings has cracked, pulled away from the trim in several spots, and developed gaps up to 1/4 inch wide. The remaining windows and the back door still have serviceable caulk. The homeowner wants the four problem areas resealed and the front door weatherstripped.

The technician completes the project in approximately two hours. All old caulk is completely removed with a utility knife and oscillating tool, joints are cleaned with a solvent wipe, backer rod is pressed into the two gaps exceeding 1/4 inch, and fresh siliconized acrylic caulk is applied and tooled for a clean, smooth finish. The front door receives new V-strip weatherstripping on the head and both jambs plus a new door sweep at the threshold. The homeowner can expect these seals to last 10 to 15 years before the next recaulking is needed, and should notice an immediate reduction in drafts and a measurable improvement in heating efficiency this winter.

Scenario 2: Whole-House Caulking on a Two-Story Colonial in Prince Frederick, $1,669

A homeowner in a 2003-built two-story colonial in Prince Frederick is preparing the exterior for repainting and wants all caulking replaced as part of the prep work. The home has 18 windows (10 ground floor, 8 second floor), a front entry door, a side garage entry door, a rear sliding glass door, 6 pipe and vent penetrations, 2 hose bibs, 4 exterior electrical outlets, and approximately 50 linear feet of siding-to-corner-trim joints. The existing caulk is a mix of original builder-grade acrylic latex (now 23 years old and failing throughout) and a partial recaulk done approximately 10 years ago on the ground-floor windows only.

The project takes approximately five to six hours with a two-person crew. Because the project is being done in preparation for exterior painting, the crew uses paintable siliconized acrylic latex on all visible joints and polyurethane on the foundation and masonry joints. Every joint is stripped to bare substrate and recaulked fresh, no overlay on old material. The painter can begin work 24 to 48 hours after caulking, once the sealant has cured. The homeowner gains a completely resealed building envelope that will last 10 to 15 years under the new paint, far outlasting the paint itself and eliminating the moisture intrusion that caused the paint failure that prompted the repainting in the first place.

Scenario 3: Waterfront Home Weathersealing in Solomons, $2,164

A homeowner in Solomons, 300 feet from the Patuxent River, has a 1995-built Cape Cod with persistent moisture and draft issues. The home has 16 windows (including two skylights), 2 exterior doors, 1 sliding glass door, a screened porch with 3 window openings, a crawl space with multiple pipe penetrations, and significant salt air exposure. The original caulk, standard acrylic latex, not rated for salt air environments, has deteriorated badly on the windward (river-facing) side. The homeowner wants a comprehensive weathersealing upgrade using marine-grade and salt-resistant sealants throughout, plus weatherstripping on all doors and operable windows.

The project requires a full day with a two-person crew. The key upgrade is switching all river-facing and exposed joints from failed acrylic latex to 100% silicone or polyurethane, sealants that resist salt air degradation and maintain flexibility through decades of freeze-thaw cycling. The crawl space penetration sealing addresses a significant source of moisture and air infiltration that the homeowner may not have been aware of, every pipe, wire, and duct that passes through the crawl space wall or floor is sealed with expanding foam on the interior side and capped with silicone or polyurethane on the exterior. The comprehensive weatherstripping upgrade on all doors and operable windows completes the building envelope seal. The homeowner can expect a noticeable reduction in drafts, a measurable drop in heating and cooling costs, and significantly reduced moisture intrusion that was contributing to mildew on interior window sills and musty odors in the crawl space.

Scenario 4: Pre-1978 Home Caulking with Lead Paint Considerations in Leonardtown, $1,505

A homeowner in a 1965-built rambler in Leonardtown wants to recaulk the entire exterior, 12 windows, 2 doors, and all penetrations, but the home was built when lead paint was standard. Removing old caulk from window and door joints will inevitably disturb adjacent paint, which may contain lead. Federal EPA RRP (Renovation, Repair, and Painting) rules require that any work disturbing more than 6 square feet of lead paint on the exterior of a pre-1978 home be performed by an EPA-certified renovator using lead-safe work practices, including containment, specialized cleanup, and proper disposal.

The project takes approximately five hours. The lead-safe work practices add $150 to $250 to the project cost compared to the same scope on a post-1978 home, primarily for containment setup, HEPA vacuuming of debris, and proper disposal of lead-contaminated waste. The investment is both legally required and practically important: lead dust from disturbed exterior paint can contaminate soil around the foundation and be tracked indoors, creating a health hazard especially for children and pregnant women. The EPA-certified contractor handles all containment, cleanup, documentation, and disposal, ensuring that the homeowner is protected both from lead exposure and from the significant fines (up to $37,500 per day per violation) that the EPA can assess for non-compliant renovation work on pre-1978 homes.

Signs Your Home Needs Exterior Caulking

Knowing when to recaulk starts with a visual inspection that any homeowner can perform in 15 to 30 minutes by walking the exterior of the home and examining every joint, seam, and penetration.

Visible cracks in existing caulk beads. The most obvious sign. Caulk that has cracked, whether hairline cracks or full separations, has lost its seal and is allowing air and water to pass through. Cracks are most common on south- and west-facing walls where UV exposure and temperature swings are greatest.

Caulk pulling away from one or both surfaces. When caulk separates from the siding, trim, or window frame, creating a visible gap between the sealant and the surface it was bonded to, the seal has failed. This is often caused by using the wrong sealant type, caulking over old material, or applying caulk to a dirty or wet surface.

Hardened, brittle caulk that no longer flexes. Press your fingernail into the caulk bead. Fresh, functional caulk should feel slightly rubbery and resilient. Old, failed caulk feels hard and brittle, like dried putty, and may crumble when touched. Brittle caulk cannot accommodate the normal expansion and contraction of building materials and will crack with the next temperature swing.

Gaps with no caulk at all. Walk the perimeter and look for joints that were never caulked, or where the caulk has fallen out entirely. Common locations include the tops of window and door trim (where caulk is often skipped during construction), the junction where siding meets the foundation, and around utility penetrations that were added after the home was built (cable TV lines, satellite dish cables, newer HVAC line sets).

Peeling or bubbling paint near window and door frames. Paint failure adjacent to caulk joints is often caused by moisture infiltrating through failed caulk, getting behind the paint film, and causing the paint to lose adhesion. Recaulking the joint and allowing it to cure before repainting addresses the root cause rather than just the symptom.

Drafts near windows and doors during windy or cold weather. Hold your hand near the edges of closed windows and exterior doors on a cold or windy day. If you feel moving air, the building envelope is compromised, and failed exterior caulk and weatherstripping are the most common culprits.

Higher-than-expected heating or cooling bills. If your energy bills have been creeping up without a corresponding increase in utility rates or a change in your usage patterns, air leakage through failed caulk joints may be the cause. The cumulative effect of 20 or 30 failed caulk joints across a home, each admitting a small stream of outdoor air, can be equivalent to leaving a window open year-round.

Moisture, mildew, or condensation on interior window sills. Moisture that appears on the interior side of windows, especially during cold weather, can indicate that exterior caulk failures are allowing humid outdoor air or rainwater to penetrate the window-to-wall junction, with moisture migrating to the interior side of the assembly.

Pest intrusion, stink bugs, lady beetles, spiders, mice. If you see an increase in overwintering pests indoors every fall, the entry points are almost certainly gaps in the building envelope. A thorough exterior caulking project that seals every gap larger than 1/16 inch eliminates the entry points that these pests rely on.

Frequently Asked Questions

How often should exterior caulking be replaced? The replacement interval depends entirely on the sealant type and the exposure conditions. Standard acrylic latex caulk in a sheltered location may last 5 to 10 years. Siliconized acrylic in a typical exterior application lasts 10 to 15 years. 100% silicone in a protected joint can last 20 to 50 years. Polyurethane in a properly prepared joint lasts 20 to 30 years. In Southern Maryland's high-humidity, freeze-thaw climate, and especially in salt-air waterfront locations, expect the lower end of each range. A good rule of thumb is to inspect all exterior caulk annually in the fall and recaulk any joints that show cracking, separation, or hardening, regardless of the sealant's nominal lifespan.

Can I caulk over old caulk? This is the single most common caulking mistake, and the answer is almost always no. Caulking over old, failed caulk creates a bond only to the old caulk surface, not to the clean substrate of the joint. Since the old caulk has already lost its adhesion to one or both sides of the joint, the new layer inherits that failure and will peel away within one to three years. The proper procedure is to completely remove the old caulk with a utility knife, oscillating tool, or caulk removal tool, clean the joint surfaces with a solvent or scrub pad, allow the surfaces to dry completely, and then apply the new sealant to clean, bare substrate. The only exception is when the existing caulk is still well-adhered and flexible but has a small surface crack, in that case, a thin overlay of the same product type may hold for several years as a temporary repair.

What is backer rod and when do I need it? Backer rod is a round, compressible foam rope (available in diameters from 1/4 inch to 1 inch) that is pressed into a gap before caulking to control the depth and shape of the caulk bead. It is needed whenever a joint is wider than 1/4 inch or deeper than 1/2 inch. Without backer rod, caulk in a deep or wide joint forms a thick mass that cures poorly (the interior remains uncured long after the surface skins over), bonds to three surfaces (both sides and the bottom of the joint, called a three-point bond) rather than the ideal two-surface bond, and lacks the flexibility to accommodate movement. Backer rod eliminates the third bond point, controls the caulk depth to an optimal 1/4 to 3/8 inch, supports the caulk bead during tooling, and reduces the amount of caulk needed. At $3 to $8 per 20-foot roll, it is an inexpensive material that dramatically improves the performance and longevity of the caulk joint.

Is exterior caulking the same as window glazing? No, these are different products applied to different joints. Caulking seals the joint between the window frame (or trim casing) and the wall, the exterior perimeter where the window unit meets the siding, brick, or stucco. Glazing (also called glazing compound or glazing putty) seals the joint between the glass pane and the window sash, the small channel that holds the glass in place. Glazing is specific to older single-pane windows with traditional putty glazing; modern windows use factory-applied glazing beads or gaskets that are not user-serviceable. If your older windows have cracked, missing, or crumbling glazing putty, that is a separate repair from exterior caulking, though both can be addressed in the same service call.

Will caulking stop water from getting into my walls? Caulking is one layer of a multi-layer water management system. It seals the visible joints at the surface of the building envelope, preventing direct water entry at those points. However, the primary water barrier in a properly constructed wall is the housewrap or building paper behind the siding, not the caulk. Caulking supplements the housewrap by preventing water from reaching the wall cavity through surface joints, but it does not replace proper flashing, housewrap, or drainage plane construction. If water is entering your walls despite caulking, the underlying water management system may have deficiencies that caulking alone cannot address, a situation that requires a more comprehensive assessment.

Should I caulk the bottom of the siding where it meets the foundation? Generally no, and this is a common mistake. The bottom edge of siding is intentionally left unsealed to allow any moisture that gets behind the siding (from condensation, wind-driven rain, or other sources) to drain out at the bottom. Caulking this joint traps moisture behind the siding and can cause accelerated rot, mold growth, and paint failure. The joint that should be sealed is the foundation-to-sill-plate junction, the horizontal joint where the wood framing sits on top of the concrete foundation, which is typically visible on the interior of the crawl space or basement. This joint is a major source of air infiltration and should be sealed with expanding foam or polyurethane caulk.

Does caulking help with soundproofing? To a limited degree, yes. Air gaps that transmit drafts also transmit sound, a 1/8-inch gap under a window frame passes both air and noise. Sealing all exterior caulk joints and weatherstripping doors and windows reduces the transmission of outdoor noise (traffic, lawn equipment, aircraft, wind) into the home. The improvement is modest compared to dedicated soundproofing measures (acoustic windows, insulated walls, mass-loaded vinyl barriers), but it is a noticeable side benefit of a comprehensive weathersealing project, particularly for homes near Route 4, Route 235, or NAS Patuxent River where traffic and aircraft noise are persistent.

When is it too cold to caulk? Most exterior caulk products require application temperatures above 40 degrees Fahrenheit and cure best between 50 and 80 degrees. Applying caulk below 40 degrees causes the product to thicken, adhere poorly, and cure incompletely, resulting in a seal that fails prematurely, often within the first season. In Southern Maryland, the reliable exterior caulking season runs from mid-March through late November, with October and early November being the ideal window, warm enough for proper curing but cool enough that the joints are at their mid-range position (neither fully expanded from summer heat nor fully contracted from winter cold), which gives the caulk the best chance of accommodating seasonal movement in both directions.

Ready to seal your home before winter? Gray & Sons Contracting provides professional exterior caulking and weathersealing throughout Calvert, St. Mary's, and Charles County, from targeted window and door resealing in Waldorf, La Plata, and Lexington Park to whole-house weathersealing projects on colonials and ranches in Prince Frederick, Leonardtown, and Solomons, to salt-air-rated waterfront sealing in Dunkirk, Huntingtown, and California (MD), to lead-safe caulking on pre-1978 homes in Mechanicsville, Charlotte Hall, Hollywood, Chaptico, Avenue, Lusby, Chesapeake Beach, North Beach, Indian Head, Bryans Road, Hughesville, St. Inigoes, Ridge, and Scotland. Most projects are completed in two to six hours with immediate improvement in comfort, energy efficiency, and protection against moisture, pests, and winter drafts, no mess, no damage to your siding or trim, and the peace of mind that every joint, gap, and penetration on your home's exterior is sealed with the right product for the right application. We handle the complete job, assessment, old caulk removal, surface preparation, sealant selection, application, tooling, and cleanup, with honest pricing and the experience to identify hidden air leaks and moisture pathways that a tube of caulk from the hardware store will never find. Get a Free Estimate