Decks, Fences & Wash in Naperville, IL
Exterior wood rot repair in Naperville, done before the paint goes on
A soft window sill, crumbling trim at the bottom of a door or a punky porch column? Paint will not hold on rotten wood, so we cut it out and rebuild it first.
We answer 24/7 and book walk-throughs on the first call.
Answering 24/7Naperville service office
Updated September 2026
This job
Exterior Wood Rot Repair
Decks, Fences & Wash · answering 24/7
Quick answer
Exterior wood rot repair in Naperville, IL means cutting out soft wood on trim, sills, siding and porch parts, replacing or rebuilding it, and priming every cut end before paint. Small soft spots can be rebuilt with epoxy; larger ones need new wood.
The job
Paint over rot fails within a season
Rot starts where water sits: window sills, the bottom of door casings, fascia behind gutters, the base of porch columns and siding near the ground. Paint over it cracks and peels quickly, and the rot keeps spreading underneath.
We probe every suspect spot, cut back to sound wood and decide between an epoxy repair and a replacement piece. New wood is primed on all sides before it goes up, joints are caulked and the repair is painted to match.
What moves the price
What moves the price of wood rot repair
Repairs are priced by how much wood is damaged and how hard it is to match.
- 01Extent of rot
A soft corner of a sill costs far less than a full sill or column.
- 02Epoxy or replacement
Epoxy saves original wood; replacement is faster on large sections.
- 03Profile matching
Custom-milled trim or siding costs more than standard stock.
- 04Access and height
Second-story trim and fascia need ladders or staging.
- 05Hidden damage
Water damage behind trim or siding is found and priced as it is opened.
- 06Painting
Repairs are primed and painted; painting the whole side adds to the job.
What this job covers
A
Rotted trim and sill replacement
Window sills and the bottom of door and window casings rot first, because rain runs down and sits at the joint. We probe the wood, cut out the soft section and replace it with new wood or a rot-resistant PVC piece shaped to match the profile. Where the damage is shallow, a two-part epoxy consolidant and filler rebuilds the shape without removing the whole piece. Every repair is primed and caulked before it is painted. We also check what let the water in, such as failed caulk or a clogged gutter.
B
Siding board replacement
Siding boards rot along the bottom course near soil, mulch and splashback, and below leaking trim. We remove the damaged boards, check the sheathing and house wrap behind for water damage, and install new boards milled to match the existing profile. New cedar or pine is primed on every face and edge before it goes up, so it does not soak up water from the back. Once caulked and painted, the repair should disappear into the wall. We also look for the source, such as a leaking trim joint or splashback.
C
Porch and column repair
Porch columns rot at the base, where water sits on the floor and wicks up the grain, and porch floors and rails rot at their joints. When a column base needs work, the porch roof is supported first, then the rotted section is cut out and rebuilt or replaced, often with a rot-resistant base. Rails and balusters are reset or replaced to match. Structural damage beyond trim and columns is flagged before we start, so you can bring in a carpenter.
What is included
What a wood repair job should include
- Probing every sill, casing and trim run
- Photos of damage before it is cut out
- Cutting back to sound wood
- Epoxy repair or new wood, agreed with you
- New pieces milled to match the profile
- Every cut end and back face primed
- Joints caulked and flashing checked
- Repairs painted to match the house
Around Naperville
With about 102 days a year below freezing, water that gets into cracked paint and open joints freezes and thaws over and over, opening the wood a little further each winter. That is why rot here shows up so often at sills and the base of trim. Older homes on North Avenue and 4th Avenue, with median build years in the 1910s and 1920s, have a century of that behind them, so their original trim and porch parts get probed carefully before any repaint.
How the job runs
How a repair job runs
- Step 1
Probe and photograph
We find every soft spot and show you what we found.
- Step 2
Agree the fix
Epoxy or new wood is decided piece by piece.
- Step 3
Cut out
Rotted wood is removed back to sound material.
- Step 4
Rebuild
Epoxy fills or new primed pieces are fitted to match.
- Step 5
Seal
Joints are caulked and nearby flashing checked.
- Step 6
Prime and paint
Every repair is primed and painted to match the house.
Compare the options
Patching rot yourself, or having us repair it
A small soft spot is tempting to fill and paint over. That is how rot keeps spreading.
| Item | Doing it yourself | Having us do it |
|---|---|---|
| Finding the edge | Soft wood often runs past what you can see | Probed until we reach sound wood |
| Filler | Wood putty over rot cracks out within a season | Epoxy consolidant and filler, or new wood |
| New wood | Unprimed backs soak up water and cup | Primed on every face before installing |
| The cause | Easy to miss the leak that caused it | Flashing, caulk and gutters checked |
Often, yes. Shallow rot can be consolidated and rebuilt with epoxy; deep rot needs new wood.
Press it with a screwdriver. If the tip sinks in or the wood crumbles, it is soft.
Where it suits the house, yes. PVC trim does not rot, and we paint it to match.
Yes. Repairs are usually made at the start of a paint job, then primed and painted with the rest.
We check the sheathing when boards come off, show you, and agree on any extra work before continuing.
Often booked together
Other jobs that usually come up alongside this one
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House and siding wash
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Book a wood rot inspection in Naperville
Call any hour. We probe the trim and siding, photograph what we find and send a written estimate for repair and paint.
