Exterior Repair in Mercer Island, WA
Rot repair, decks, siding and exterior repair for Mercer Island homes, done by our own crew.
Before
AfterCorner rebuilt, sided and painted
Homes in Mercer Island
Mercer Island’s homes range from 1940s and 50s cottages in East Seattle and the North End to mid-century ramblers in neighborhoods like Mercerwood, and many large newer houses built on the island’s slopes and shoreline. Older homes often have cedar or wood lap siding, while newer ones use fiber cement, stucco or mixed cladding. Lots tend to be sloped and wooded, with daylight basements and decks that step down toward Lake Washington views. Waterfront homes along East and West Mercer Way often have docks, boathouses and multi-level terraces.
Surrounded by Lake Washington, Mercer Island gets wind from almost every direction depending on the storm, and lake-facing walls take wind-driven rain. Steep, wooded slopes keep many homes shaded and damp, and dense trees around Pioneer Park and along the Mercer Ways drop needles that clog gutters. Long wet winters mean wood rarely dries out between fall and spring. Large windows and decks oriented toward the water are the most exposed parts of most homes.
North End homes near I-90 and Luther Burbank Park include many older houses with original siding and small decks. East Seattle and the west side face Seattle across the lake, catching weather on west walls. Mercerwood and the central island have mid-century homes under heavy tree cover. The South End and properties along East Mercer Way sit on steep, wooded slopes where tall decks and daylight basements are common.
Our services in Mercer Island
Rot repair in Mercer Island
We find where the water gets in, cut out every soft spot and rebuild it so it stays dry.
Learn moreDeck contractor in Mercer Island
Repairs, rebuilds and new composite decks, built on solid framing with the flashing done right.
Learn moreSiding repair in Mercer Island
Siding repair and replacement with the house wrap and flashing done right behind it.
Learn moreStructural repair in Mercer Island
Rotted posts, beams, joists and sill plates replaced and reinforced, with shoring when needed.
Learn moreWaterproofing in Mercer Island
Walkable waterproof coatings, slope fixes and flashing that keep water out of your walls and ceilings.
Learn moreWindow & trim repair in Mercer Island
Rotted sills, jambs and trim replaced, with flashing so the water stops getting in.
Learn moreChimney chase repair in Mercer Island
Rotted wood-framed chimney chases rebuilt, sided and flashed so they stay dry.
Learn moreFascia & soffit repair in Mercer Island
Rotted fascia, soffits and rafter tails replaced, with drip edge so the roof edge stays dry.
Learn moreBalcony & porch repair in Mercer Island
Rotted balconies, porches, columns and railings rebuilt safely and waterproofed.
Learn moreWhat we fix most in Mercer Island homes
Window, Door & Trim Repair
Rotted sills, jambs and trim replaced, with flashing so the water stops getting in. In Mercer Island, that usually means sills, jambs and trim around windows and doors are the first wood to go soft.
Chimney Chase Repair
Rotted wood-framed chimney chases rebuilt, sided and flashed so they stay dry. In Mercer Island, that usually means wood-framed chimney chases take water at the top and rot from the inside.
Structural Repair
Rotted posts, beams, joists and sill plates replaced and reinforced, with shoring when needed. In Mercer Island, that usually means rot that started in siding or a deck reaches posts, beams and sill plates.
Every visit starts with a free inspection: we probe the wood, check moisture, photograph what we find and give you a written price before any work starts. Patching small areas of trim, siding or decking with identical material rarely needs a permit. Steep-lot deck rebuilds, structural work and larger replacements usually call for one. The City of Mercer Island handles that review, and we confirm the requirements with them up front, submit what is needed, and keep inspections on the calendar.
Typical repair costs in Mercer Island
| Service | Smaller jobs | Larger jobs |
|---|---|---|
| Dry Rot Repair | $600 – $1,800 | $15,000+ |
| Deck Repair & New Decks | $1,500 – $5,000 | $38,000 – $70,000+ |
| Siding Repair & Replacement | $800 – $3,000 | $30,000 – $65,000+ |
| Structural Repair | $1,500 – $5,000 | $15,000 – $35,000+ |
| Deck Waterproofing & Flashing | $600 – $2,500 | $12,000 – $30,000+ |
| Window, Door & Trim Repair | $500 – $1,500 | $10,000 – $25,000+ |
| Chimney Chase Repair | $800 – $2,500 | $10,000 – $22,000 |
| Fascia & Soffit Repair | $500 – $1,500 | $7,000 – $18,000 |
| Balcony & Porch Repair | $1,500 – $4,500 | $15,000 – $40,000+ |
Typical 2026 ranges for Mercer Island homes. The real number depends on what we find once the area is open. Every estimate is free, written and based on an on-site inspection with photos.
A year-round checklist for Mercer Island homes
Fall
- Clean gutters and downspouts before the first big storms
- Check deck boards, railings and stairs before they get slick
- Look over window sills and trim for cracked paint
Winter
- Watch for stains on ceilings under decks and balconies
- Note any spots where water pools against the house
- Check that downspouts drain away from the foundation
Spring
- Walk the house and press trim, sills and corners for soft spots
- Wash moss off siding, decks and roofs gently
- Book repairs early: summer schedules fill fast
Summer
- Repaint and recaulk while the wood is dry
- Reseal wood decks and recoat balcony surfaces
- Replace rotted wood before the rain comes back
Mercer Island gets the same long wet season as the rest of the region, so most exterior damage builds slowly from October to May. A short walk around the house each season catches problems while they are still small.
From first call to finished repair
Probe and document
We test soft areas with an awl and a moisture meter and photograph everything before we quote.
Find the leak
We trace where the water comes from, so the repair fixes the cause, not just the wood.
Cut out all the rot
Damaged siding, sheathing and framing come out back to solid, dry wood.
Rebuild and flash
New framing and sheathing, house wrap, and the flashing that was missing.
Backed by a 24-month workmanship warranty
Written scope
You know exactly what is included before work starts, with photos of what we found.
Our own crew
The people who quote your job are the people who do it, start to finish.
Clean site daily
Debris is hauled away and your yard is left the way we found it.
24 months covered
If our workmanship fails within two years, we come back and make it right.
What homeowners say
“This concerns the work of a company hired to fix some troublesome spots on our home. They were able to rebuild and refinish a window frame that had deteriorated from weather damage over the years. They did an excellent job. That one fix made the house look…”
“As a Condominium owner finding contractors that can work with multiple concerns at once is a challenge. The team at Eco Home Repair has been our go-to for several projects including deck and front porch repairs, siding replacement, chimney chassis repairs…”
“I'm really happy with how the deck repair turned out. They replaced the damaged boards, reinforced the deck, and gave it a fresh new stain. Everything looks great, feels much sturdier, and honestly looks so much better now. Really happy with the work! Really…”
5.0 average from 106 reviews on Google, Thumbtack, Angi, HomeAdvisor and Yelp. Read our reviews on Google.
Questions from Mercer Island homeowners
Do you work in Mercer Island?
What do you repair in Mercer Island?
Is the estimate free?
Are you licensed and insured?
Do you serve all parts of Mercer Island, including steep South End lots?
Why does my Mercer Island home have rot on more than one side?
Is access a problem for repairs on narrow Mercer Island driveways and steep lots?
Need a repair in Mercer Island? Tell us what you are seeing.
- Licensed, bonded & insured
- Free on-site estimates
- 24-month workmanship warranty
Get a free estimate in Mercer Island
We inspect the damage on-site, show you photos and give you a written price before any work starts.