Woodinville Siding Contractor — Installation, Repair & Replacement From Hollywood Hill to Wine Country
Woodinville is two different worlds for siding: Hollywood Hill’s wooded 5-acre estates baking in shade and moisture, and the Sammamish River Valley floor where morning fog keeps walls damp until noon. Add LP Inner-Seal failures from the 1980s–90s and you need a contractor who picks the right material for the right exposure. Paul does. GP General Corp handles siding installation, siding repair, and full replacement across Woodinville, WA — fiber cement (Hardie Board), cedar, LP SmartSide, and standing-seam metal.
WA License #GPGENGC830KD 
Hardie Certified Installer 
5-Star Rated 
Valley & Hill ExpertiseGP General Corp installs, repairs, and replaces siding on Woodinville, WA homes — James Hardie fiber cement (Hardie Board), cedar, LP SmartSide, and standing-seam metal. Tree cover keeps shaded walls wet here most of the year, so HydroGap drainable wrap goes behind every cladding as standard. Fixed-price contract, installed rates on our pricing page, free written quote.
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 Woodinville Homeowners Trust Us With Their Siding
You’ve probably gotten a few quotes for Woodinville siding contractor work already. You’ve heard the pitches. Here’s what makes us different — and why Woodinville 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 Woodinville 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 AccountableFiber Cement (Hardie Board), Cedar, LP SmartSide & Metal Siding for Woodinville, WA Homes
How Our Woodinville Siding Installation Process Works
From permit to final walk-through, here’s exactly how a siding installation in Woodinville, WA runs with GP General Corp. Most full re-sides finish in 2–5 weeks on site.
We remove the existing siding completely and inspect every square foot of sheathing before anything new goes up. On Woodinville homes we look specifically for freeze-thaw damage at the bottom courses of siding where cold-air pooling has cycled the caulk joint width more aggressively than average. 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 Woodinville because of ~46 inches annually — higher than most of the Eastside, with Sammamish Valley cold-air pooling on winter nights. 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 Woodinville jobs we give extra attention to roof-to-wall kick-outs on the rambler additions common in the area, and penetration flashings around the detached-shop/barn connections. 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 extend WRB coverage under sill plates where valley cold-air exposure has historically wicked moisture up into rim joists. 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. Cold-air pooling means wider winter joint gaps than on higher-elevation Eastside homes, so sealant selection and bead size matter — we spec for the widest cycling range each Woodinville 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 Woodinville (or Snohomish/Skagit County on unincorporated properties) is documented and handed off to you.
Siding Repair in Woodinville, WA: The Problems We Fix Most
LP Inner-Seal siding from the 1980s–90s is failing across Woodinville. The class action drew 130,000 claims nationally. OSB-based product absorbs moisture, swells, crumbles. If your siding is bubbling at the bottom edges or delaminating at joints, that’s LP. It needs full replacement.
Homes near the Sammamish River sit in a moisture trap. Cold air and fog settle on the valley floor and keep siding damp well into morning. Winter humidity reaches 75–80%. The same siding product that holds up on the hill fails years early in the valley.
RA-2.5 zoning means large wooded lots with mature Douglas fir canopy. North-facing walls on Hollywood Hill properties may not see direct sun for months. Persistent shade accelerates moss, algae, and rot. Siding selection up here needs to account for walls that never fully dry.
Siding Repair in Woodinville, WA — Repair or Replace?
Not every failing wall needs a full re-side. Here is how we decide on Woodinville homes, and what a siding repair actually includes.
Isolated rot at a window corner, a hose bib, or the bottom course of a shaded Hollywood Hill wall: we remove the affected boards, replace the flashing that let the water in, replace any soft sheathing, and install new Western Red Cedar primed on all six sides to match your reveal. Most cedar siding repairs in Woodinville are a one to three day job.
Cracked or impact-damaged HardiePlank, open butt joints, failed caulk at trim. We replace individual boards to HZ10 spec, re-flash the transition behind them, and recaulk with a sealant rated for the movement that wall sees. Color-matched ColorPlus or field-painted to blend. A small Hardie siding repair does not void your product warranty.
We do not spot-patch 1980s–90s LP Inner-Seal. The OSB core wicks moisture sideways, so a patch fails at the next joint. If one wall is swelling, we replace that elevation with LP SmartSide or Hardie and tie it into the weather barrier correctly. If three or more walls are failing, a full replacement costs less per square foot than repairing them one at a time.
Siding repair in Woodinville starts with the same on-site inspection as a full replacement: moisture meter on every elevation, probing at every transition, written findings you keep either way. Small repairs are billed at $125/hr plus materials; anything over a day gets a fixed price. Request a repair assessment or call (425) 344-9635.
Siding Installation Cost in Woodinville, WA
Installed prices per square foot of wall, with tear-off and HydroGap drainable wrap included. The full rate table and what moves the number are on our pricing page.
$14–$20 per sq ft installed. HardiePlank lap to HZ10 spec, primed or ColorPlus. Our standard for valley-floor and shaded walls.
$15–$21 per sq ft installed. Engineered wood with a 50-year substrate warranty. The usual upgrade from failed LP Inner-Seal on 1990s Woodinville tract homes.
$20–$40 per sq ft installed over a ventilated rainscreen, six-side primed. Grade and profile drive the range. Plan on re-staining every 3–7 years.
A typical 2,500 sq ft two-story in Woodinville has about 3,750 sq ft of wall, so a Hardie siding installation lands between $52,000 and $75,000 before any rot repair. If another siding installation quote says $4–$6 per square foot installed for Hardie, that is a material-only number. Ask what is excluded: tear-off, weather barrier, flashing, trim, caulk, paint, disposal, and permit are usually the missing items.
What Homeowners Say About Our Siding Installation & Repair Work
“I am so happy with the quality of work and how quickly the work was completed. The quote was spot on and affordable. Communication happened whenever I called or my call was returned within hours. I highly recommend.”
“I recently chose GP General for our James Hardie siding installation, and the results were exceptional. The GP General team showcased remarkable professionalism and expertise, delivering a flawless installation that significantly elevated our home’s aesthetic. Their proficiency with James Hardie products and commitment to quality service make GP General a top recommendation for siding installation.”
“Recently had siding replaced by gp general corp and it was one of the best decisions I’ve made. Not only did they do an amazing job with the installation, but they were also very professional and accommodating. They completed the project in a timely manner and I’m extremely pleased with the end result. Highly recommend gp general corp for siding replacement.”
Read all reviews on Google — 5.0 star average
Woodinville Siding Questions
Is LP Inner-Seal siding still a problem in Woodinville?
Should I use Hardie or cedar on Hollywood Hill?
Does the valley fog really affect siding?
My Wellington HOA requires approval. Can you help?
What does siding cost in Woodinville?
How long does a Woodinville siding replacement take?
Do I need a permit to replace siding in Woodinville?
What is the best time of year for siding installation in Woodinville?
Do you do siding repair in Woodinville, or only full replacement?
Woodinville Neighborhoods We Work In
Equestrian properties and estates on 2–5+ acre parcels. RA-2.5 zoning. Dense Douglas fir canopy creates persistent shade. North-facing walls need moisture-proof materials. Winery views and vineyard-adjacent properties give this area its wine country character.
Luxury subdivisions with $1.3–2M+ homes. Active HOA with Architectural Control Committee. Consistent architecture from the 1990s–2000s build period. Cedar and fiber cement are the dominant siding materials.
More rural feel around the 63-acre lake. Updated ramblers, split-levels, and newer construction. Tree cover traps moisture. Cedar with rainscreen works well here where homeowners want natural wood to match the setting.
Walkable area near the 130+ wineries. Mix of traditional homes and newer townhomes. Commercial vehicle traffic from the winery district can complicate residential job access on weekends.
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 · Woodinville Siding Contractor · WA License #GPGENGC830KD — Verify · James Hardie Certified Installer
Neighboring service areas
Kirkland (15 min south) · Redmond (15 min south) · Mill Creek (15 min west)