Wood Rot Repair & Trim Replacement Before Painting

Fresh paint won’t fix rotted wood, and trying to cover it up just means you’ll be repainting sooner than you’d like.

Wood Rot Repair Done Right the First Time

Here’s the thing about wood rot: it spreads. What starts as a soft spot on your window trim can work its way through exterior boards, siding, and even structural beams if you ignore it long enough. And the weather doesn’t help. Between the humid summers and freeze-thaw cycles we get every winter, moisture finds its way into every crack and gap it can. That’s where the trouble starts.

We’ve been fixing rotted trim and siding for homeowners for years now, and honestly, most of the time, people call us after they’ve noticed paint peeling or bubbling. That’s usually the first sign. By the time you see it, the wood underneath is already compromised. The good news? Catching it now means we can replace the damaged sections, treat the surrounding areas, and get everything properly primed before any painting happens.

Skipping this step is a waste of money. You can paint over rot, sure, but within a year or two you’ll be right back where you started. Maybe worse. We’d rather do it once and do it right.

See What We've Repaired

We’ve worked on everything from Craftsman-style homes to newer builds. Every project is a little different depending on the age of the home, the type of wood originally used, and how long the rot has been sitting there.

Our gallery shows the before-and-after of real jobs we’ve completed, and it’ll give you a pretty good sense of how we approach each repair. Take a look, and you’ll see why people keep recommending us to their neighbors.

100+ happy clients served

15+ years in the industry

2 yr. workmanship warranty

What Homeowners Are Saying

Don’t just take our word for it. We’ve built our reputation one project at a time, and the families we’ve worked with have been kind enough to share their experiences. Check out the reviews below to get a better feel for how we work, how we communicate, and what it’s like to have us at your home for a few days.

Angela Domer

Rated 5 out of 5

EG Contracting did a wonderful job repainting my kitchen.

I was really impressed by the quality of the set-up, the paint job, and the clean-up.

Eric was very responsive and easy to work with.

What Causes Wood Rot (And How We Fix It)

Most wood rot comes down to three things: moisture, poor ventilation, and time. The areas we see rot most often are window sills, door frames, soffit boards, fascia, and any trim that sits close to the ground or gets hit with runoff from the roof. Sometimes it’s a clogged gutter that’s been overflowing for a season or two. Other times, it’s just old caulk that cracked and let water seep behind the trim.

When we come out to assess your home, we’re not just looking at the obvious damage. We’re checking for soft spots you might not have noticed yet, testing areas with a moisture meter, and figuring out why the rot started in the first place. Because if we don’t fix the root cause, you’re going to have the same problem again in a few years.

Here’s how we handle it:

Inspection & Assessment: We walk the exterior with you, point out what needs attention, and explain what we're seeing.
Removal of Damaged Material: If the wood is spongy or discolored, it comes out. We remove it back to solid, healthy material so the repair has something stable to attach to.
Treatment & Prevention: Before any new wood goes in, we treat the surrounding area to prevent future rot. That might mean applying a wood preservative, sealing gaps, or improving drainage. Sometimes we'll recommend switching to a rot-resistant material like PVC trim or composite boards for areas that see a lot of moisture.
Replacement & Priming: New trim and boards get installed, caulked properly, and primed with a high-quality paint primer before any finish coats go on. We match the profile of your existing trim so everything looks original. Then it's ready for paint.

Common Areas We Repair

Area	Why It Rots	What We Replace
Window sills & trim	Water runs down glass and sits on the sill	Full sill replacement, side casings, apron boards
Door frames	Thresholds trap moisture, caulk fails over time	Bottom of frame, threshold, side jambs
Fascia boards	Gutter overflow, roof runoff	Full fascia sections, soffit if needed
Deck posts & railings	Ground contact, trapped moisture	Post bases, balusters, rail caps
Siding (especially near grade)	Splash-back from rain, poor grading	Lower courses, corner boards, water table

Why Replacing Rotted Trim Matters Before Painting

You wouldn’t tile over a cracked shower pan, right? Same logic here. Paint is a protective layer, but it only works if what’s underneath is solid. Rotted wood can’t hold paint. It’s too porous, too soft. Even if it looks fine right after you paint, the rot keeps spreading underneath. Within months, the paint will start cracking, peeling, or bubbling as moisture works its way out.

We’ve seen plenty of homes where someone painted over obvious rot just to get the house on the market or because they didn’t want to deal with the repair cost. It always shows up later. And when it does, the fix is more expensive because now you’re dealing with more damage, possibly mold, and definitely a bigger replacement area.

If you’re planning to paint your home’s exterior, this is the time to handle any wood rot. Get it fixed now, get it painted properly, and you’ll have a finish that lasts years instead of months.

Materials We Use for Trim Replacement

We don’t use the cheapest lumber we can find. Most of our exterior trim replacements use either cedar, treated pine, or PVC depending on the application and your budget. Cedar holds up well, takes paint beautifully, and has natural rot resistance. Treated pine works great for areas that see moisture but need the look of real wood. PVC trim is what we recommend for high-moisture spots like near gutters, around doors, or anywhere ground contact is an issue. It won’t rot, won’t split, and it holds paint just as well as wood once it’s properly primed.

For interior trim replacement (which sometimes ties into exterior rot damage, especially around windows), we typically use finger-joint pine or MDF if it’s going to be painted. If you want stain-grade, we’ll use solid hardwood that matches the rest of your interior.

Staying on Schedule and Within Budget

Wood rot repair costs vary depending on how much material needs replacing and where the damage is located. A single window sill might run a few hundred dollars. Replacing fascia boards along a full roofline or reframing a rotted door opening costs more. We give you a clear estimate after the inspection, so there are no surprises later. And look, we know this isn’t the fun kind of home improvement. But fixing rotted trim before you paint saves you money in the long run. You avoid repainting every few years, and you stop the damage before it gets into structural areas that cost real money to fix.

Most wood rot repairs take a few days to a week, depending on the scope. We’re not talking months here. We show up when we say we will, we work efficiently, and we clean up at the end of each day. Your home is your space, and we respect that. We’ll give you a realistic timeline upfront and stick to it unless we find additional hidden damage, which we’ll discuss with you before moving forward.

How We Handle Your Wood Rot Project

We’ve made this straightforward so you can focus on the end result instead of worrying about the process.

Plan

We assess the damage, explain what needs fixing, and provide a clear estimate.

Repair

Rotted material comes out, new wood goes in, everything gets sealed and primed.

Finish

Your home is ready for a fresh coat of paint that will actually last.

Frequently Asked Questions About Wood Rot Repair

How do I know if I have wood rot or just old paint?

Press on the wood with your thumb or a screwdriver. If it feels spongy, soft, or the tool sinks in easily, that’s rot. Old paint might crack or peel, but the wood underneath will still feel solid. If you’re not sure, we can come out and take a look. It takes about five minutes to tell the difference, and we’d rather you catch it early than wait until it spreads.

Can you just fill the rotted area instead of replacing it?

We could, but we don’t recommend it unless the damage is really minor and only on the surface. Wood fillers and epoxy work for small repairs, but they don’t solve the underlying problem. If the wood is rotted through, it’s already lost its structural integrity. Filling it might look fine for a few months, but the rot will keep spreading underneath. Replacing the damaged section is the only way to stop it for good.

How long does the repair take?

It depends on how much needs replacing. A couple of window sills? Maybe a day or two. Full fascia boards or multiple door frames? Closer to a week. We’ll give you a timeline after we assess the damage. Most homeowners are surprised at how quickly we work once we get started.

Will you match the existing trim profile?

Yes. We bring samples of your current trim to the lumber yard or mill it ourselves if it’s a custom profile. The goal is to make the repair invisible once it’s painted. You shouldn’t be able to tell where the old trim ends and the new trim begins.

Prep Today. Paint Tomorrow.

Erick Gonzalez

Wood rot repair isn’t glamorous, but it’s the foundation of a paint job that lasts. We’ve been doing this long enough to know when a homeowner is frustrated because they keep repainting the same spots every few years. That stops when you fix the underlying problem. We serve homeowners in Fairfax, Chantilly, Centreville, Oakton, Vienna, and throughout Virginia, and we’d be happy to take a look at what you’re dealing with.

Give us a call at (571) 253-5583 or visit our contact page here. If you’re planning an exterior paint job soon, read more about our painting services here. Let’s make sure the wood is solid before the first brush stroke goes on.

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