Bothell Siding Contractor — Siding Installation & Replacement
Searching for a Bothell siding contractor who handles both county permits and shows up on time? Bothell sits on a county line — King to the south, Snohomish to the north — and that detail trips up contractors. Two permit systems. Two inspection processes. Add 90s-era production homes hitting their replacement window simultaneously and the North Creek valley humidity, and you need someone who’s done both sides. Paul has — from siding installation to repair and full siding replacement in Bothell.
WA License #GPGENGC830KD 
Hardie Certified Installer 
5-Star Rated 
Both Counties HandledGP General Corp installs siding in Bothell — James Hardie, LP SmartSide, and cedar. We work both sides of the King–Snohomish county line and handle the permit differences between them. Fixed-price contract, real rates on our pricing page, free written quote after an on-site assessment.
By Paul Gubenya — Owner, James Hardie Certified Installer · WA License #GPGENGC830KD · MBAKS Member · Rated 5.0 on Google · (425) 344-9635
What 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 Bothell Homeowners Trust Us With Their Siding
You’ve probably gotten a few quotes for Bothell siding contractor work already. You’ve heard the pitches. Here’s what makes us different — and why Bothell homeowners don’t shop around the next time.
Recent GP projects on the Eastside & nearby:
- Bellevue modern new construction — white ColorPlus Hardie + metal coping →
- Bellevue new construction — Hardie mixed lap & panel with composite accents →
- Mercer Island Hardie reside with R-5 exterior insulation + Shou Sugi Ban accent →
“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 Eastside 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 Bothell 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 Eastside 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 AccountableReady to talk about your project?
Free walk-through with Paul. No-pressure quote. Honest assessment of what your home needs.
Siding Materials We Install in Bothell
Our Siding Installation Process in Bothell
From permit to final walk-through, here’s exactly how a siding installation, siding repair, or siding replacement in Bothell runs with GP General Corp.
We remove the existing siding completely and inspect every square foot of sheathing before anything new goes up. On Bothell siding replacement projects we look specifically for moisture damage at the north and east walls where the North Creek and Sammamish Slough valleys hold morning fog longest. 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 Bothell siding installation. The integrated drainage gap keeps any moisture that gets behind the siding moving down and out instead of sitting against sheathing. Bothell’s creek-valley locations and humid mornings make drainable WRB non-negotiable. 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. On Bothell siding repair jobs — especially 1990s production builds in Canyon Park, Westhill, and North Creek — original window head flashings were often caulk-only. Failed or missing flashings are the number-one cause of siding failure we see, and we upgrade these details beyond code-minimum.
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 replace saturated OSB sheathing with plywood on north-wall sections where prior moisture has already weakened the substrate. 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. Bothell winters cycle through freeze-thaw with high humidity, which is harder on sealant than dry cold — so sealant selection and bead size matter for long-term Bothell siding installation performance. 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 your Bothell siding installation 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 Bothell (or Snohomish County for unincorporated areas just north of the city limits) is documented and handed off to you.
The Siding Issues We Fix Most in Bothell
Most Bothell homes in Canyon Park, Westhill, North Creek, and Maywood Hills were built 1988–2002. Original siding — Hardie 1.0, LP, hardboard, or T1-11 — is now 25–35 years old and at end of life. Whole streets are doing siding replacement in Bothell within 24 months of each other.
North Creek and Sammamish Slough valleys hold morning fog longer than nearby ridges. North-facing walls stay damp into the afternoon. Algae and moss appear within 2–3 years of fresh paint. The fix is rainscreen behind fiber cement, not more paint — one of the most common Bothell siding repair conversions we do.
1980s and early-90s Bothell homes commonly used hardboard (Masonite/MDF) or T1-11 plywood siding. Both swell, delaminate, and rot at edges and joints. We’ve seen interior moisture from failed hardboard reach the studs. These need full siding replacement, not repaint.
What Bothell Homeowners Say
“Canyon Park 1990s home, original Hardie, north side was failing at every joint. Paul did the tear-off, found rotted sheathing, replaced it, and re-clad with HZ10 over rainscreen. The wall finally looks dry.”
“We’re technically in Snohomish County but the King County line runs right through our subdivision. Paul handled the Snohomish permit without any back-and-forth. The neighbors who hired a different contractor are still waiting on inspections.”
“Our Maywood Hills home had T1-11 from the original 1989 build — rotting at every horizontal joint. Paul replaced it with Hardie and proper flashings. The HOA approved on the first submission because his packet was complete.”
Read all reviews on Google — 5.0 star average
Not sure where to start?
We’ll come out, look at your siding, and give you a straight answer — even if the answer is “you don’t need us yet.”
Bothell Siding Questions
How much does siding installation in Bothell cost?
Do I need a permit for siding replacement in Bothell? My house is in Snohomish County.
Why does siding in Bothell fail at the joints?
My HOA in Canyon Park requires architectural approval. How does that work?
Our whole subdivision needs re-siding. Do you do multiple homes?
How long does a Bothell siding replacement take?
What is the best time of year to install siding in Bothell?
What siding holds up best in Bothell’s hillside neighborhoods?
Bothell Neighborhoods We Work In
Production-built corridor along I-405 north of NE 195th, 1990s buildout. Most homes are original Hardie, LP, or hardboard hitting end-of-life simultaneously — prime territory for siding replacement in Bothell. Snohomish County jurisdiction.
Northeast Bothell along the North Creek corridor, mix of 1990s and 2000s builds. Valley humidity and slow morning sun on north walls drive earlier-than-average siding failures. Some HOA review depending on subdivision.
Hilltop neighborhood west of downtown Bothell, original T1-11 and cedar from 1980s buildout. Active HOA with architectural committee. Steeper lots and wooded exposure make flashing details critical for Bothell siding installation.
Established neighborhood between downtown and the Sammamish River. Mid-century to 1990s housing stock, some custom infill. Mature canopy on north walls. King County jurisdiction.
Older central core with mid-century homes, plus newer condos and townhomes from the downtown revitalization. Permits coordinated with the City of Bothell. Some historic homes near Main Street.
Northern edge of Bothell near Country Village shopping. Late-80s to 90s ranch and split-level homes. T1-11 and hardboard original siding common. Snohomish County permits.
Serving Bothell & 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 · Bothell Siding Contractor · WA License #GPGENGC830KD — Verify · James Hardie Certified Installer
Neighboring service areas
Mill Creek (5 min north) · Kirkland (12 min south) · Woodinville (10 min east)