Mukilteo Siding Contractor — Harbour Pointe to Old Town, Coastal-Ready
Mukilteo went from 1,600 people to 18,000+ between 1980 and 2000, mostly because of Harbour Pointe. That means thousands of homes built in the same 15-year window are all hitting siding replacement age at once. Add Old Town’s Possession Sound wind exposure and Boeing/Paine Field proximity, and you need a contractor who understands coastal conditions on the Eastside of the Sound.
WA License #GPGENGC830KD 
Hardie Certified Installer 
5-Star Rated 
Harbour Pointe ExperienceWhat Homeowners Say
Real reviews from our Google profile — unedited, from real projects.
“We recently had Paul with GP General repair a damaged corner protector and sidings. His estimate was reasonable, his availability was timely, and his job was excellent. Our home hadn’t been re-painted in a while and the paint had considerably faded, yet he was able to match the color perfectly. Now we know who to turn to when in need of another repair work.”
“GP General replaced LP siding on our garage. Paul was very thorough when he came out to do the estimate; he listened to my concerns and was able to work out solutions on the spot. His crew did a great job and were very courteous. They also were careful about cleaning up (I didn’t find any nails!). Really happy with the job and can recommend GP General.”
“I highly recommend GP General Corp for siding replacement. We recently had our wood siding replaced with James Hardie lap siding, and Paul and his team did an excellent job.”
Why Mukilteo Homeowners Trust Us With Their Siding
You’ve probably gotten a few quotes for Mukilteo siding contractor work already. You’ve heard the pitches. Here’s what makes us different — and why Mukilteo homeowners don’t shop around the next time.
Recent GP projects in the Seattle area:
- Mercer Island Hardie reside with R-5 exterior insulation + Shou Sugi Ban accent →
- Magnolia vertical cedar rainscreen with exterior insulation →
- Bellevue modern new construction — white ColorPlus Hardie + metal coping →
“Will they catch the damage I can’t see?”
Most siding fails because of what’s behind it — rot, failed flashing, moisture you can’t see from the curb. With 15+ years walking Snohomish County walls, we don’t guess. We probe, document, and re-engineer the wall assembly with drainable WRB, integrated flashings, and rainscreen ventilation built for Pacific Northwest weather.
Building Science First“I’m tired of high-pressure salespeople.”
No same-day discounts. No “this price is only good if you sign tonight.” We give you a free written assessment, a fixed-price contract, and the time to think it over. Most of our work in Mukilteo comes from neighbor referrals — you don’t earn that doing it any other way.
No-Pressure Quotes“Will the warranty actually mean anything?”
A warranty is only as good as the install behind it. We’re a certified James Hardie installer, which means every panel goes up to manufacturer spec — gap, fastener, primer, every detail. That’s what keeps your 30-year Hardie product warranty enforceable if you ever need to use it.
Manufacturer-Backed“How do I know they won’t disappear after the check clears?”
Owner-run with 15+ years of Snohomish County siding experience behind it. WA License #GPGENGC830KD backed by a $30,000 contractor bond — both verifiable any time at L&I. You’ll work with Paul start to finish. Same person quoting, walking the job, and answering the phone in year five if a question ever comes up.
Owner AccountableSiding Materials for Mukilteo Homes
How We Do It
From permit to final walk-through, here’s exactly how a re-side in Mukilteo runs with GP General Corp.
We remove the existing siding completely and inspect every square foot of sheathing before anything new goes up. On Mukilteo homes we look specifically for salt-influenced corrosion at original fastener locations and dry rot at ferry-side elevations where saltspray is most direct. Any compromised sheathing is replaced with new plywood or OSB. This is where we find the hidden problems — failed flashings, missing WRB, saturated sheathing — that caused the old siding to fail in the first place.
We install Benjamin Obdyke HydroGap Drainable as our standard WRB on every job. The integrated drainage gap keeps any moisture that gets behind the siding moving down and out instead of sitting against sheathing. This matters for Mukilteo because of ~38 inches annually with direct Possession Sound saltwater exposure on bluff-side elevations. Seams are lapped upper-over-lower (6” horizontal, 12” vertical), taped at joints, and integrated with window and door flanges using peel-and-stick flashing.
Head flashings above windows and doors. Kick-out flashings at every roof-to-wall intersection. Step flashings along rooflines. Proper flashing integration at every penetration — vents, hose bibs, electrical boxes, light fixtures. On Mukilteo jobs we give extra attention to stainless-upgrade for every fastener on saltwater-facing walls, including head-flash nail lines. Failed or missing flashings are the number one cause of siding failure we see, so we upgrade these details beyond code-minimum wherever the install justifies it.
HardiePlank installed to James Hardie’s Best Practices manual for the HZ10 climate variant — the PNW-required product (HZ5 voids the warranty here). 1¼” corrosion-resistant nails, blind-nailed, ½” gap at trim, matched to your original reveal. We install supplemental furring for rainscreen airflow on saltwater-exposed west walls where the moisture drying cycle matters most. ColorPlus pre-finish carries a 15-year color warranty; primed board gets field-painted within 180 days of install.
Every joint, butt-end, and penetration gets sealed with a high-grade elastomeric sealant rated for siding movement. Saltspray and sun on west-facing Harbour Pointe walls require sealants rated for marine exposure, so sealant selection and bead size matter — we spec for the widest cycling range each Mukilteo elevation will see, not the average. Joints are tooled, not just applied, for full bond contact on both faces.
We walk the property with you at the end of the job to make sure everything looks great and you’re happy with the final result. It’s a 20-point walk: caulk lines, paint touchups, downspout reattachment, gutter reset, and site cleanup. Permit sign-off from the City of Mukilteo (or Snohomish/Skagit County on unincorporated properties) is documented and handed off to you.
The Siding Issues We Fix Most in Mukilteo
Harbour Pointe’s 1980s–90s homes were built with T1-11 plywood panel siding. After 30–40 years of PNW moisture, the grooved panels are rotting at the bottom edges where water wicks up. The entire development is hitting replacement age within a 10–15 year window. It’s happening now.
Old Town and bluff-top homes face direct southwesterly winds off Possession Sound. Wind-driven rain penetrates every unsealed joint and transition. Homes near the Mukilteo Lighthouse (1906) take the worst of it. Marine-grade fasteners and sealants are essential.
Many Harbour Pointe homes still have original cedar shake roofs from the 1980s. Tannin-stained water runs off the roof and down the siding below, leaving dark streaks and accelerating deterioration at the roofline-to-wall transition. Proper kickout flashings redirect this water away from the siding.
What Mukilteo Homeowners Say
“Half our Harbour Pointe cul-de-sac needed re-siding. Paul assessed each home individually even though they’re all the same floor plan — because the substrate conditions were different. Honest approach.”
“Old Town home near the lighthouse. Paul specified marine-grade fasteners and sealants for our Sound-facing walls without being asked. The other two contractors quoted standard hardware. That tells you something.”
“Our HOA sector required ACC approval before we could change siding. Paul prepared the full submission. Approved, no issues. The installation was professional and on schedule.”
Read all reviews on Google — 5.0 star average
Mukilteo Siding Questions
Why is everyone in Harbour Pointe replacing siding right now?
Does the Harbour Pointe HOA need to approve siding changes?
Does proximity to Paine Field/Boeing affect siding?
What does siding cost in Mukilteo?
How long does replacement take?
Do I need a permit to replace siding in Mukilteo?
What is the best time of year for siding installation in Mukilteo?
What siding material holds up best on Mukilteo waterfront homes?
Mukilteo Neighborhoods We Work In
2,341 acres, the dominant residential area. 1980s–90s “New Traditional” homes built around the golf course. T1-11 and cedar from that era now failing en masse. Active HOA with sector-specific ACC review. This is where most of Mukilteo’s re-siding demand originates.
Historic waterfront village around the 1906 Mukilteo Lighthouse. Eclectic mix from mid-century ramblers to contemporary builds. Direct Possession Sound exposure — the most wind and salt in the city.
Waterfront along Possession Sound. Marine exposure similar to Old Town but with slightly more shelter from the bluffs. Established homes with mature landscaping.
Established residential area between Harbour Pointe and Old Town. Mix of decades. Moderate elevation provides some shelter from direct marine weather while maintaining Sound views.
Serving Mukilteo & Nearby Cities
Done Dealing With Contractors Who Don’t Call Back?
Paul picks up the phone. Shows up when he says he will. Gives you a straight answer — even if that answer saves you thousands by telling you a full replacement isn’t necessary.
GP General Corp · Mukilteo Siding Contractor · WA License #GPGENGC830KD · James Hardie Certified Installer
Neighboring service areas
Edmonds (15 min south) · Everett (10 min north) · Mill Creek (15 min south)