Massachusetts License
CS-123114
MA CSL · Unrestricted
Wood rot repair is the process of finding decayed wood, removing it back to solid material, correcting the moisture source that caused it, and rebuilding the affected section to its original profile and structural capacity, from surface trim to load-bearing framing.
It is the right call when paint bubbles, trim feels soft, or a probe sinks into what should be solid wood. On Cape Cod, salt air, wind-driven rain, and freeze-thaw cycles work together to accelerate decay. Water gets in at the details: unsealed end grain, failed flashing, open joints. Left alone, surface rot reaches structural members and the repair scope grows with it.
Daniel Araujo holds a Massachusetts Construction Supervisor License (CSL), Unrestricted (#CS-123114), and Forty One Construction is a BBB Accredited Business. We carry 51 Google reviews at 5 stars.
This page covers what wood rot repair includes, what it costs in 2026, which repair methods fit which situations on the Cape, and what separates a repair that holds from one that rots again in two seasons.
Massachusetts License
CS-123114
MA CSL · Unrestricted
Home Improvement
217279
MA HIC Registration
Accreditation
BBB
Accredited Business
Google Reviews
5 Stars
51 Google Reviews
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On-Site Estimates
Before You Call · Cape Cod
Weathered paint peels but the wood beneath is still firm. Rot is soft, spongy, or crumbles when probed. If an awl or screwdriver sinks in without much resistance, decay is present and the repair clock has started.
The one you cannot see matters most. Rot at a sill plate or rim joist is hidden behind finished walls and subfloor. By the time interior symptoms appear, the structural repair is larger than an early exterior catch would have been. If trim anywhere on the house is soft, probe nearby framing too.
Wood Rot Repair · Cape Cod
A wood rot repair with Forty One Construction runs through seven steps, from the first moisture reading to the final coat and sign-off in Hyannis. Each step has a purpose and a point where you know what we found before we go further. Here is what each one covers.
Diagnosis · Phase One
We walk the exterior with a moisture meter and awl, probing suspect areas to map where decay starts and where it stops. Salt air and wind-driven rain get in at joints and end grain first, so we check beyond what is visibly soft. You get a clear picture of the scope before anything is removed.
We locate the water entry point driving the decay, whether that is failed flashing, a clogged gutter, missing kickout, or an open joint in the siding, and we address it before closing up the repair. Fixing wood without fixing the source means the same section rots again.
Repair · Phase Two
All rotted material is cut back to solid wood with no soft spots when probed. Exposed sound wood is treated with a borate preservative to inhibit future fungal growth. Contaminated debris is removed from the site.
We rebuild with the method that fits the scope: epoxy consolidant and filler for small pockets, a Dutchman patch for mid-size sections, or full dimensional lumber or PVC replacement for larger runs. New wood is back-primed on all six faces, with end grain sealed, before it goes in.
Re-flashing and caulking at the repair joint close the water entry point. On the Cape, wind-driven rain arrives sideways and gets behind siding at the details, not the middle of the wall, so every lap and joint at the repair point gets attention before the finish coat goes on.
Finish · Phase Three
New wood receives a full primer coat and finish paint to match the surrounding trim or siding. We follow the paint manufacturer spec: primer plus two topcoats. The goal is a repair that blends with the existing surface and is sealed against the next rain.
We take a final moisture reading to confirm the wood is at or below the accepted threshold before we call it done. We walk the repair with you, show you what was replaced and why, and answer questions. We do not close out the job until you have seen the work.
Scope · What You Are Buying
A wood rot repair quote from Forty One Construction covers moisture source diagnosis, removal and disposal of rotted wood, replacement material, borate preservative treatment, priming and a basic finish coat, and re-sealing or re-flashing at the repair point. Full re-siding, structural engineering for major load-bearing work, mold remediation, and long-term drainage corrections are quoted separately rather than assumed into the number.
Included in the quote
Not included, quoted separately
Done correctly means all rot removed back to solid wood confirmed with a probe, moisture content at or below 19 percent before closing up or painting, epoxy systems cured per manufacturer schedule before sanding, new wood back-primed and end-grain sealed on all six sides, flashing corrected per IRC and manufacturer guidance, and a final coat system of primer plus two topcoats applied per paint manufacturer spec. Those are standards, not preferences.
Repair Cost · Cape Cod
Wood rot repair on Cape Cod typically runs $500 to $4,000 for localized jobs in 2026, with Forty One Construction quoting each repair after an on-site assessment in Hyannis. Fascia and soffit runs price closer to $9 to $34 per linear foot, siding sections to $6 to $30 per square foot, and structural framing repairs often exceed $5,000.
Structural framing repairs such as sill plate or rim joist replacement regularly exceed $5,000 depending on scope.
Cost Factors
The price moves with a handful of real drivers, including how deep the decay goes, where on the house it sits, and whether the wood is load-bearing.
Surface trim rot costs less to fix than decay that has reached structural framing members.
Roofline, second-story, and crawlspace locations take longer to reach and stage safely than ground-level trim.
If the affected wood carries a load, temporary shoring is required before removal, which adds time and cost.
Historic millwork or custom profiles require more time to source and fit than standard dimensional lumber or PVC trim board.
Multiple small repairs across the house cost more in total than a single concentrated repair of the same area.
2026 Cost Guide
These ranges are a starting point for planning. Every repair is quoted after an on-site assessment.
| Job size / scope | Typical range on Cape Cod (2026) |
|---|---|
| Spot trim repair: sill, casing, or small fascia section | $500 to $1,500 for most localized jobs |
| Fascia or soffit run, or single siding section | $9 to $34 per linear foot or $6 to $30 per square foot |
| Multi-location cosmetic repairs across the house | $1,500 to $4,000 depending on count and access |
Structural framing: sill plate, rim joist, or post replacement with shoring often exceeds $5,000. Confirm exact figures before committing to a number.
Get a Free Estimate →Repair Materials · Cape Cod
The right repair material depends on where the rot is, how much wood is gone, and what the surrounding surface looks like. Within a few miles of salt water, which describes most of the Cape, the fasteners and end-grain treatment matter as much as the board itself. Below are the options we use, honestly compared. Whatever the material, we treat exposed wood with borate and seal all end grain before the finish coat.
Dimensional Lumber · Standard Repair
The most common replacement for rotted trim, fascia, and siding sections. Real wood that can be shaped to match existing profiles. Needs to be back-primed on all six faces and end-grain sealed before installation. In salt air, cut ends left unsealed split during freeze-thaw within a season or two.
PVC Trim · Low Maintenance Upgrade
AZEK and Versatex do not absorb moisture and will not rot. A strong upgrade option for fascia, soffit, and window casings where painting and priming are the preference over repeated maintenance. Fastened with stainless screws only to avoid rust streaks on a coastal house.
Epoxy System · Small Pocket Repair
Products like Abatron WoodEpox and LiquidWood stabilize soft wood and fill voids without full replacement. Best for small pockets where the surrounding wood is still structurally sound. Must cure per manufacturer schedule, typically 24 to 72 hours, before sanding or painting.
Pressure-Treated Lumber · Structural
Required for any repair in ground contact or at exterior framing points like rim joists, sill plates, and posts. Treated to resist fungal decay and insect damage at the points where moisture exposure is highest. Paired with stainless or hot-dip galvanized fasteners because ACQ is corrosive to standard hardware.
Finish System · All Repair Types
Every repair gets a full primer coat and two finish coats per paint manufacturer spec, with elastomeric sealant at joints and caulk lines. On Cape Cod, wind-driven rain finds open seams fast, so the finish coat is not cosmetic, it is part of what keeps the repair watertight.
Material Comparison
Compare where each material fits best, how it performs near Cape Cod salt air, and the level of maintenance each requires after the repair.
| Option | Best for | Holds up to salt air | Maintenance |
|---|---|---|---|
| Kiln-dried pine or cedar | Trim and siding | Good with sealed end grain | Medium |
| PVC or cellular PVC | Fascia, soffit, casings | Excellent, no moisture uptake | Very low |
| Two-part epoxy system | Small pockets, voids | Very good | Low once cured |
| ACQ pressure-treated | Structural framing | Very good | Low |
| Exterior primer and sealant | All repair types, finish layer | Good with two topcoats | Recoat as needed |
We name real products when we spec a job: Abatron WoodEpox and LiquidWood for epoxy consolidation, Bora-Care or Tim-bor for borate treatment, AZEK or Versatex for PVC trim, and stainless or hot-dip galvanized fasteners throughout. If a simpler material is the right call for the location, we will tell you.
Repair Timeline · Cape Cod
A wood rot repair with Forty One Construction takes half a day to one day for a small trim or sill spot, one to two days for a fascia or soffit run or single siding section, two to four days for repairs across multiple locations, and three to seven or more days for structural framing work such as sill plate or rim joist replacement depending on permitting and shoring scope.
Two things stretch that window here. If structural framing is involved, a permit may be required from the Town of Barnstable Building Division, which adds review time before work begins. Weather also limits the schedule: exterior repairs that depend on cure or dry time cannot be closed up during freeze-thaw from roughly November through March, and summer traffic on Route 28 and Route 6 affects crew and material delivery, which we account for in an honest schedule rather than a date we cannot hold.
Repair Standards · Cape Cod
The quality of a rot repair is almost entirely invisible once the paint is on. The details that decide whether the repair holds for years or fails in two winters are the ones that happen before the finish coat: moisture source correction, end-grain sealing, borate treatment, and proper flashing at the joint. Get any of those wrong and the same section rots again.
Rot does not appear without a sustained water source. Before any replacement wood goes in, we locate and correct the moisture entry point, whether that is failed flashing, a missing kickout, a gutter that overflows onto trim, or an open joint in the siding. Wind-driven rain on the Cape arrives sideways and finds every unsealed detail. Closing up a repair without correcting the source is the most common reason a rot repair fails and has to be done again within a few years.
Unsealed end grain is the most common hidden shortcut in Cape Cod exterior work. Water soaks into cut ends fast, freezes in winter, and splits the wood from the inside. Every piece of new wood we install is back-primed on all six faces with end grain sealed before it goes into the wall. Exposed sound wood at the repair edges is treated with a borate preservative to inhibit future fungal growth. Epoxy systems are allowed to cure per manufacturer schedule before sanding or painting.
Repair Quality · Coastal Exposure
The moisture source correction decides it, not the filler or the paint. A repair where the water entry point is fixed, the wood is properly treated and sealed, and the flashing is corrected will outlast a cosmetic patch by years. We do not publish a single lifespan figure because the honest answer depends on the original cause, the repair method, and the exposure, and a number that ignores those three things is not useful information.
Forty One Construction backs labor and installation with a 5-year workmanship warranty. Manufacturer warranties on materials such as PVC trim or epoxy systems are provided separately by the manufacturer and vary by product.
Local Rot Repair · Cape Cod
Forty One Construction does wood rot repair across Cape Cod from our office in Hyannis, and the coastal conditions shape every job. Salt air corrodes standard fasteners within a season or two, wind-driven rain gets behind siding at the details rather than the middle of the wall, and freeze-thaw from November through March splits unsealed end grain that would survive winter without issue in a drier inland climate. A repair built for inland Massachusetts is not built for this.
We serve homeowners from the outer Cape through the canal: Provincetown, Truro, Wellfleet, Eastham, Orleans, Chatham, Brewster, Harwich, Dennis, and Yarmouth on one side, and Hyannis, Centerville, Osterville, Cotuit, Mashpee, Falmouth, Bourne, Sagamore, Sandwich, and Barnstable through the mid- and upper Cape, along with Plymouth. See our work in Hyannis and Barnstable.
Credentials · Accountability
Daniel Araujo holds a Massachusetts Construction Supervisor License (CSL), Unrestricted (#CS-123114), and the company holds Home Improvement Contractor registration #217279. We carry $1,000,000/$2,000,000 general liability coverage, and a certificate of insurance is available on request. The numbers are printed so you can check them. Learn more about us.
We submit drawings to the Town of Barnstable Building Division and pull the permit in our name. Footings reach frost depth, ledgers get through-bolted and flashed, and every connection is built to pass framing and final inspection, not just to look finished.
You get a written scope up front, so the number in your hand is tied to specific materials and work, not a vague figure that grows halfway through. When quotes look interchangeable on paper, that's usually where the real difference sits.
Exterior Carpentry · Cape Cod
Wood rot repair often overlaps with other exterior carpentry on the same visit. If window or door casings need attention beyond the rot itself, our finish carpentry crew handles the trim work. For larger moisture-related issues that involve roofing or siding, we can scope those repairs alongside the rot work rather than treating them as separate projects.
Client Testimonials
Hear directly from our clients about their experience working with Forty One Construction. Select a video to watch their story.
Homeowner Reviews
Forty One Construction holds a 5-star rating across 51 Google reviews.
“From the first walkthrough to the final cleanup, their professionalism stood out. They explained every step clearly, offered smart recommendations…”
“We are enjoying our deck and patio and we love the fresh look our house now has.…”
“Outstanding communication, craftsmanship, customer care and pricing. I would recommend them for any home improvement project, large or small.…”
Custom Decks · Cape Cod
Massachusetts consumer guidance advises homeowners not to pay more than one-third of the estimated cost upfront unless special-order materials are needed. We work within that standard and tie payments to a written scope. Talk specifics with us before you sign anything.
Epoxy fills the void and restores the profile, but the rot will return if the moisture source is still active. We locate and correct the water entry point before any repair material goes in, whether that is re-flashing a joint, replacing a section of gutter, or re-caulking on a clean surface. The epoxy itself does not absorb moisture and will not decay, but the surrounding wood can if the source is not fixed.
Most rot repair is exterior work and does not affect daily life inside the house. Crawlspace or rim joist work may require brief access through a basement or hatch, which we coordinate in advance. Our crew parks on site or on the street and keeps materials staged in one area. During summer, Route 28 and Route 6 traffic can shift arrival times, and we account for that when we set the schedule.
For most exterior trim or siding work, nothing. Clear planters, furniture, or stored items away from the affected wall section and make sure the area is accessible. For crawlspace or rim joist repairs, clear the access hatch and the area immediately inside. We handle permits, material staging, and cleanup. If we need anything specific, we will tell you at the assessment.
Every repair carries a 5-year workmanship warranty on labor and installation. Manufacturer warranties on materials are provided separately by the manufacturer. If the same area softens again and the cause traces to our work rather than a new moisture source, call us and we will look at it at no charge. If the issue is with our repair, we fix it at no cost to you.
When two bids describe the same repair, the lower one often skips steps you cannot see: end-grain sealing, borate treatment, moisture source correction, or stainless fasteners instead of standard ones. In a coastal climate those shortcuts show up within a few winters. We are a licensed local company that documents the scope in writing, uses the right materials for salt air exposure, and stands behind the repair.
Cosmetic trim and fascia repairs typically do not require a permit. Structural framing repairs, including sill plate, rim joist, or post replacement, may require a permit from the Town of Barnstable Building Division under 780 CMR, the Massachusetts State Building Code. When a permit is required, we prepare the documentation and pull it in our name before work begins.
Yes. Exterior repairs that depend on paint cure or epoxy cure time are affected by temperature and humidity, which rules out certain finish work during hard freeze periods from roughly November through March. Summers are the busiest booking window on the Cape, so scheduling earlier in the season avoids the longest waits. Structural repairs requiring permits add review time regardless of season. We factor all of that into the schedule we give you.
Free On-Site Estimate
Ready to talk through your project? Forty One Construction will
come out, look at your yard, and give you a written scope tied
to real materials and a real number. Every install carries a
5-year workmanship warranty on labor and installation, with
manufacturer warranties on materials provided separately by
the manufacturer.
Our crew builds across Hyannis and Cape Cod, and our office is
at 76 W Main St Unit 306, Hyannis, MA 02601. Call us or request
an estimate and we'll get you on the calendar honestly, weather
and permits accounted for.
No-pressure consultation · Clear upfront pricing