Deck Waterproofing & Flashing in Lake Stickney, WA
Waterproofing and flashing repair for decks, balconies, windows and roof-to-wall joints. When coatings wear through or flashing is missing at doors and walls, the leak often shows up far from where water gets in. We trace it to the source, replace any wet framing, correct slope and flashing, and finish with a walkable surface that drains away from the house. We serve homeowners across Lake Stickney and nearby Lynnwood and Mukilteo.
Before
AfterNew siding and trim around the window
Why waterproofing comes up so often in Lake Stickney
Many Lake Stickney homes were built before modern flashing practices, so water gets behind siding at nearly every opening. We install pan flashing under windows and doors, add head flashing above them, and put kick-out flashing where roof edges meet walls. Decks and ledgers get proper metal flashing, and any deck or balcony over enclosed space gets a waterproof membrane with correct slope. On these older homes, adding flashing during siding or trim repairs is the most effective way to stop the rot from returning.
Lake Stickney is an unincorporated pocket around a small lake just west of Interstate 5, between Lynnwood, Mukilteo and south Everett. Much of the housing dates from the 1960s through the 1980s: single-story ramblers, split-levels and modest two-story homes on medium lots, many with original cedar or T1-11 siding and aluminum windows that have since been swapped out. Some manufactured homes and newer infill houses and townhomes sit alongside them. Decks tend to be smaller and lower to the ground, often built of pressure-treated wood and added after the house went up.
The lake and the low ground around it hold moisture, and older homes here sit fairly close to grade, so lower siding and sill plates stay damp in the wet season. Wind from the Sound reaches the area from the west, pushing rain into walls that have little flashing behind the trim. Mature trees on established lots shade roofs and decks. Many homes are now 40 to 60 years old, and the long run of mild, wet winters has slowly broken down original paint, caulk and wood on every side.
Our crew comes out from our Woodinville office, and we also work in nearby Lynnwood, Mukilteo, Everett and Martha Lake.
When to call about waterproofing in Lake Stickney
- Stains or drips on the ceiling below a deck or balcony
- Water pooling against the house after rain
- Cracked, peeling or soft deck coating
- A deck that slopes toward the house
- Rot or stains under windows and doors
Our waterproofing process, step by step
Trace the leak
Moisture readings, inspection openings and photos to find the real source.
Repair the substrate
Rotted plywood, joists or sheathing are replaced before sealing.
Correct slope and details
Proper slope, sill pans and flashing at every edge and door.
Apply the system
Primer, membrane and walkable top coat applied in layers.
Water test
We test the problem areas and show you the finished details.
Recent waterproofing projects near Lake Stickney
What we do in Lake Stickney
Door and sill pans
Pan flashing under doors, where many balcony leaks start.
Kick-out flashing
Diverts roof water away from the wall at roof-to-wall joints.
Walkable deck coatings
Waterproof coating systems for decks and balconies over living space.
Slope correction
Fix flat or back-sloped decks so water drains away from the wall.
Leak investigation
We trace leaks to the source before anything is sealed.
Window head flashing
Flashing and tape around windows to stop leaks into the wall.
Neighborhoods and permits in Lake Stickney
Homes right around Lake Stickney and Lake Stickney Park sit lower and see more dampness than the surrounding streets. Neighborhoods closer to the Highway 99 corridor have older, smaller homes mixed with newer infill. Streets to the north toward Paine Field and south Everett include more 1970s split-levels, while the areas west toward Lake Serene and Mukilteo rise onto higher, more wooded ground.
Even with a Lynnwood or Everett mailing address, a Lake Stickney home answers to Snohomish County Planning and Development Services. A small repair using the same materials often needs no permit at all. Replacing framing, building a new deck or re-siding a large area usually does, and we confirm with the county first and handle any paperwork.
Deck and balcony surface options
| System | Best for | Expected life | Maintenance |
|---|---|---|---|
| Recoat existing membrane | Sound surface with a worn top coat | A few years per top coat | Keep drains clear, recoat when worn |
| New walkable membrane | Decks and balconies over living space | 10–15+ years | Top coat every few years |
| Membrane under decking | Dry space under a deck with a wood or composite surface | 15+ years | Keep gaps and drains clear |
| Rebuild, slope and membrane | Wet or rotted plywood, flat or back-sloped deck | 15+ years | Top coat every few years |
What waterproofing typically costs in Lake Stickney
| Project | Typical scope | Price range | Timeline |
|---|---|---|---|
| Flashing repair | Kick-out, head flashing or a door pan at one spot | $600 – $2,500 | 1 day |
| Recoat a balcony | Prep and top coat over a sound membrane | $1,500 – $4,500 | 2–3 days |
| New walkable membrane | Full membrane system on a deck or balcony | $5,000 – $14,000 | 4–7 days |
| Rebuild and waterproof | New plywood, slope correction, flashing and membrane | $12,000 – $30,000+ | 1–3 weeks |
These are typical 2026 ranges we see for waterproofing in Lake Stickney 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.
Waterproofing in Lake Stickney: cost and timing
Most common causes
Decks that slope toward the house
Flat or back-sloped surfaces push water against the wall and door thresholds.
Worn deck coatings
Coatings wear through first at doors, edges and posts, and water reaches the plywood underneath.
Missing kick-out flashing
Roof water runs down the wall instead of into the gutter and soaks the siding and framing.
What drives the price in Lake Stickney
Waterproofing in Lake Stickney depends on the size of the deck or balcony, how much substrate has to be replaced, slope correction and how many doors and walls need new flashing. Recoating a sound surface costs far less than rebuilding a wet one. You get a written price after we trace the leak.
Typical timeline
A recoat over a sound deck usually takes a few days including cure time. Rebuilding plywood, slope and flashing takes about one to two weeks, depending on weather.
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 Lake Stickney say
“I had a great experience working with Eco Home Repair on a water damage project. Water was leaking into the house through the chimney, which caused mold and water damage issues. Eco Home Repair handled everything smoothly and professionally. They replaced the…”
“I hired Eco Home Repair to do a leak repair under my balcony, deck waterproofing and slope correction, and underlying rot repair. They were professional, quick, and fairly priced; kept me in the loop throughout the whole process and was honest about what…”
“Very professional, quick to respond, and able to schedule the work on short notice they treated our home and deck with care and did an excellent job. I would definitely hire them again for a future project.”
5.0 average from 106 reviews on Google, Thumbtack, Angi, HomeAdvisor and Yelp. Read our reviews on Google.
Questions Lake Stickney homeowners ask about waterproofing
Why do older Lake Stickney homes leak around windows?
Can you coat over my existing deck in Lake Stickney?
What is kick-out flashing?
How long does a deck coating last?
How often should a deck coating be recoated?
More from our crew in Lake Stickney
Waterproofing near Lake Stickney
Tell us about your waterproofing project in Lake Stickney
- Licensed, bonded & insured
- Free on-site estimates
- 24-month workmanship warranty
Book a free waterproofing inspection in Lake Stickney
We inspect the damage on-site, show you photos of what we find and give you a written price before any work starts.