Exterior Repair in Sammamish, WA
Rot repair, decks, siding and exterior repair for Sammamish homes, done by our own crew.
Before
AfterRebuilt stairs with new railing
Homes in Sammamish
Sammamish is largely a 1980s through 2000s city, built out across the plateau above Lake Sammamish. Pine Lake, Klahanie and Beaver Lake neighborhoods are full of large two-story homes with tall walls, steep roofs and big attached decks, usually sided in cedar, hardboard or early fiber cement. Sahalee homes around the golf course tend to be larger and more custom. Along the East Lake Sammamish slope and in Inglewood you find older lake cabins next to newer view homes. Many lots are generous and heavily treed, with decks stepping down toward wooded backyards and greenbelts.
The plateau sits several hundred feet above Lake Sammamish, so Sammamish often gets colder winter nights and more snow than the lowlands nearby. That means more freeze-thaw cycles on decks, stairs and siding. Dense evergreens shade many homes for much of the day, and with long stretches of rain, wood stays damp from fall through spring. Moss grows quickly on roofs and deck boards. On the lake-facing slope, homes also catch wind coming up from the water, which drives rain into west walls.
Pine Lake and Beaver Lake homes sit under thick tree cover, so fascia, deck boards and north walls take most of the damage. Klahanie’s 1980s and 90s homes often have hardboard siding nearing the end of its life. Around Sahalee, larger custom homes have more complex rooflines and more flashing joints to fail. On the East Lake Sammamish slope, view decks and west walls get direct wind and rain off the lake.
Our services in Sammamish
Rot repair in Sammamish
We find where the water gets in, cut out every soft spot and rebuild it so it stays dry.
Learn moreDeck contractor in Sammamish
Repairs, rebuilds and new composite decks, built on solid framing with the flashing done right.
Learn moreSiding repair in Sammamish
Siding repair and replacement with the house wrap and flashing done right behind it.
Learn moreStructural repair in Sammamish
Rotted posts, beams, joists and sill plates replaced and reinforced, with shoring when needed.
Learn moreWaterproofing in Sammamish
Walkable waterproof coatings, slope fixes and flashing that keep water out of your walls and ceilings.
Learn moreWindow & trim repair in Sammamish
Rotted sills, jambs and trim replaced, with flashing so the water stops getting in.
Learn moreChimney chase repair in Sammamish
Rotted wood-framed chimney chases rebuilt, sided and flashed so they stay dry.
Learn moreFascia & soffit repair in Sammamish
Rotted fascia, soffits and rafter tails replaced, with drip edge so the roof edge stays dry.
Learn moreBalcony & porch repair in Sammamish
Rotted balconies, porches, columns and railings rebuilt safely and waterproofed.
Learn moreWhat we fix most in Sammamish homes
Deck Waterproofing & Flashing
Walkable waterproof coatings, slope fixes and flashing that keep water out of your walls and ceilings. In Sammamish, that usually means worn coatings and missing flashing let water into walls and ceilings.
Dry Rot Repair
We find where the water gets in, cut out every soft spot and rebuild it so it stays dry. In Sammamish, that usually means small paint cracks turn into soft, spongy wood behind the paint.
Balcony & Porch Repair
Rotted balconies, porches, columns and railings rebuilt safely and waterproofed. In Sammamish, that usually means balconies, porches and columns take weather on every side and rot at the connections.
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. Minor matching repairs to boards or trim are usually handled without paperwork. Bigger decks, framing work and whole-wall siding jobs tend to need approval first. We reach out to the City of Sammamish during the estimate stage, so you know what to expect, and our team handles applications and inspection visits if a permit applies.
Where we work in Sammamish
Typical repair costs in Sammamish
| 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 Sammamish 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 Sammamish 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
Sammamish 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
“I highly recommend Eco Home Repair! They did a fantastic job and the quality of their work is absolutely top-notch. Working with them was an absolute pleasure from start to finish. Big thanks to Alex as well—he was great to deal with and made sure everything…”
“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…”
“We're extremely pleased with the work Alex and the team completed on our home. They gave the entire exterior a fresh new look with new siding, renovated our front porch, and built an additional side porch and back deck. They also replaced several of our…”
5.0 average from 106 reviews on Google, Thumbtack, Angi, HomeAdvisor and Yelp. Read our reviews on Google.
Questions from Sammamish homeowners
Do you work in Sammamish?
What do you repair in Sammamish?
Is the estimate free?
Are you licensed and insured?
Does Sammamish weather really cause more exterior damage than nearby lowland cities?
My Sammamish home has original hardboard siding. Should I repair or replace it?
Can you rebuild a large deck on a sloped wooded lot in Sammamish?
Nearby areas we serve
Need a repair in Sammamish? Tell us what you are seeing.
- Licensed, bonded & insured
- Free on-site estimates
- 24-month workmanship warranty
Get a free estimate in Sammamish
We inspect the damage on-site, show you photos and give you a written price before any work starts.