Window, Door & Trim Repair in Mill Creek, WA
We repair the rot around windows and doors and fix the leak that caused it. Paint cracks at a trim joint, water runs behind the casing, and the sill and framing underneath slowly go soft. We replace rotted sills, jambs and trim with rot-resistant material, add head flashing and sill pans, and keep your windows whenever they are still in good shape. We serve homeowners across Mill Creek and nearby Everett and Bothell.
Before
AfterFlashed and rebuilt
Why window and trim repair comes up so often in Mill Creek
Windows in many Mill Creek homes were replaced with vinyl at some point, but the original wood trim and sills around them often stayed, and that is where we find rot. Sliding patio doors to the back deck are a frequent trouble spot, with water running under the threshold and into the subfloor. We pull the trim, check the rough opening, rebuild sills and jambs, then add flashing tape and a sloped pan before reinstalling. New trim is primed on all sides or made from PVC or fiber cement so the shaded back of the house holds up far longer this time.
Mill Creek grew as a planned community starting in the 1970s and filled in through the 1980s, 1990s and early 2000s, so most houses are builder-designed two-story homes and daylight ramblers on modest lots that back onto greenbelts or the golf course. Original siding is usually cedar lap, hardboard lap or panel siding, with fiber cement showing up on later phases and on homes that were re-sided. Attached cedar or pressure-treated decks off the kitchen are standard, and many were built at the same time as the house. Townhomes and newer homes cluster near Town Center and in the eastern annexed areas.
The defining exposure here is shade and moisture from the protected creek corridors and wetlands that wind through the city. Back walls and decks facing North Creek, Penny Creek or the native growth tracts may only see direct sun for a few hours on winter days, so wood stays damp from fall into late spring. Fir needles and leaf litter pile up in gutters and deck gaps. Rain here is steady rather than dramatic, and that constant wetting is what slowly breaks down paint, sealant and builder flashing on 30- and 40-year-old homes.
Our crew comes out from our Woodinville office, and we also work in nearby Everett, Bothell, Lynnwood and Snohomish.
When to call about window and trim repair in Mill Creek
- Soft or cracked window sills
- Gaps between trim and siding
- Drafts or water inside around a door
- Door jambs or thresholds that feel spongy
- Stains on the wall below a window
Our window and trim repair process, step by step
Inspect each opening
We probe sills, jambs and trim and photograph the damage.
Remove the rot
Damaged trim and wood come out back to solid material.
Flash and seal
Flashing tape, head flashing and sill pans where needed.
Install new trim
Trim, sills and jambs installed to match your home.
Finish
Caulked, primed or painted, and cleaned up.
Recent window and trim repair projects near Mill Creek
What we do in Mill Creek
Window sills
Rotted sills cut out and replaced with rot-resistant material.
Paint-ready finish
Caulked and primed, or painted to match.
Garage door trim
Rotted garage door jambs and trim replaced.
Door jambs and thresholds
Rotted jambs and thresholds rebuilt, with a sill pan underneath.
Exterior trim
Casings, corner boards and band boards replaced to match.
Head flashing
Flashing above windows and doors that sends water outward.
Neighborhoods and permits in Mill Creek
Homes around the Mill Creek Country Club fairways get more open sky and afternoon sun, but lower walls near the course irrigation stay wet. Lots along the Penny Creek and North Creek greenbelts are the shadiest we see in town. Mill Creek East, built later on higher ground off Seattle Hill Road, has newer construction where flashing defects matter more than age. Townhomes near Town Center have shared walls and tight balconies that trap water.
Swapping a few rotted boards for identical ones typically needs no permit; framing repairs, new decks and big siding replacements generally do. We confirm what applies with the City of Mill Creek before starting and build the schedule around any review. Many neighborhoods also have community association rules on colors and materials, so we match existing finishes and help you gather what the association asks for.
Exterior trim materials
| Trim | Rot resistance | Upkeep | Where it works best |
|---|---|---|---|
| Primed finger-joint pine | Low | Keep painted and caulked | Higher on the wall, protected areas |
| Cedar | Medium | Paint or stain on schedule | Homes with a traditional wood look |
| Engineered trim | High | Repaint roughly every 10 years | Most exterior trim |
| PVC trim | Very high | Occasional washing, optional paint | Sills, near the ground, wet spots |
What window and trim repair typically costs in Mill Creek
| Project | Typical scope | Price range | Timeline |
|---|---|---|---|
| One sill or trim piece | Replace a rotted sill or casing and flash it | $500 – $1,500 | 1 day |
| Door jamb and threshold | Rebuild jamb, threshold and add a sill pan | $1,200 – $3,500 | 1–2 days |
| Several openings | Sills and trim on 3–6 windows or doors | $3,500 – $10,000 | 3–6 days |
| Whole-house trim | Trim, sills and flashing around most openings | $10,000 – $25,000+ | 1–3 weeks |
These are typical 2026 ranges we see for window and trim repair in Mill Creek and nearby cities. Your price depends on what we find once the area is open, access and height, and the materials you choose. Every estimate is free, in writing and based on an on-site inspection with photos.
Window & trim repair in Mill Creek: cost and timing
Most common causes
No head flashing
Without flashing above the window or door, water runs behind the casing.
Flat sills
Sills that do not slope hold water against the wood and the window frame.
Cracked paint at trim joints
Water gets into the end grain of trim and sills through small cracks at the joints.
What drives the price in Mill Creek
Window, door and trim repair in Mill Creek is priced per opening and by how far the rot goes into the framing. Replacing a sill or casing is a small job; rot in the framing under a window takes more. You get a written price after the free inspection.
Typical timeline
Most window and door trim repairs take one to two days. Several openings or framing repairs take a few days longer.
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 near Mill Creek say
“Alex and his team did a great job fixing our siding and bottom door frame which had some rotting. They were professional, competitive in pricing and responsive. Highly recommend Eco Home Repair!”
“Very responsive, Professional, and provided a competitive quote. Very happy we reached out to him!”
“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…”
5.0 average from 106 reviews on Google, Thumbtack, Angi, HomeAdvisor and Yelp. Read our reviews on Google.
Questions Mill Creek homeowners ask about window and trim repair
Do you serve Mill Creek East and the newer areas off Seattle Hill Road?
Can you replace just a rotted window sill in Mill Creek?
What trim material do you recommend?
Will you paint the new trim?
What trim lasts longest here?
More from our crew in Mill Creek
Window & trim repair near Mill Creek
Tell us about your window and trim repair project in Mill Creek
- Licensed, bonded & insured
- Free on-site estimates
- 24-month workmanship warranty
Book a free window and trim repair inspection in Mill Creek
We inspect the damage on-site, show you photos of what we find and give you a written price before any work starts.