GP General Corp siding contractor at work on a Seattle home — James Hardie HardiePlank fiber cement installation
★★★★★ Seattle, WA · King County

Seattle Siding Contractor You Can Actually Trust

Siding Seattle homeowners trust. James Hardie Certified Installer. We replace siding on Seattle homes with materials built for this climate — fiber cement, cedar, metal, and LP SmartSide. No sales pressure. Written quotes. Work that lasts.

Trust license in Seattle — GP General Corp WA License #GPGENGC830KD — VerifyTrust hardie in Seattle — GP General Corp Hardie Certified InstallerFive star rated siding contractor 5-Year Workmanship WarrantyTrust location in Seattle — GP General Corp 5.0 on Google
Free · No Obligation
Get Your Free Assessment
A specialist visits your home, probes for moisture damage, and gives you a straight written assessment — not a sales pitch.
★★★★★5-Star Rated · “Honest, no upsell.”

No spam. Paul responds personally within 24 hours.

We replace siding on Seattle homes on fixed-price contracts — James Hardie, cedar, LP SmartSide, and standing-seam metal, with real installed rates published on our pricing page. A full re-side typically takes 2–4 weeks on site. Free written quote after an on-site assessment, and Paul calls back.

By Paul Gubenya — Owner, James Hardie Certified Installer · WA License #GPGENGC830KD · MBAKS Member · Rated 5.0 on Google · (425) 344-9635

★ 5.0 on Google — 30 reviews

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.”

Daigoro T.
Google review · Aug 2026
★★★★★

“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.”

Richard H.
Google review · Aug 2026
★★★★★

“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.”

Yevhenii
Google review · Jul 2026
Why Choose Us

A Siding Company Built for Seattle’s Conditions

Seattle gets over 38 inches of rain a year, and neighborhoods from Wallingford to Madison Park sit on mature lots where moisture finds every gap. Most siding companies in Seattle swap old boards for new ones and call it a day. We go further.

Moisture Assessment First

Before we quote a single board, we inspect the wall assembly — moisture barriers, flashings, sheathing condition. Replacing siding over a wet wall just delays the problem. We find the cause.

Written Quotes, No Surprises

Every project gets a written scope of work with itemized pricing. We don’t do verbal estimates or “we’ll figure it out as we go.” You know exactly what you’re getting before we start.

Rainscreen-Ready Installs

We spec rainscreen systems on all fiber cement and wood projects. That 3/8″ drainage gap between the WRB and siding keeps walls dry through every Seattle winter.

No Sales Pressure

Paul runs every assessment personally. You get honest recommendations, not an upsell pitch. If your siding can be repaired instead of replaced, we’ll tell you that too.

James Hardie Certified Installer

James Hardie’s Certified Installer certification requires training and quality standards above standard contractor requirements — so your Hardie warranty stays intact.

Licensed & Insured in Washington

WA Contractor License #GPGENGC830KD — Verify. Fully insured. We pull permits when required and work within code — protecting your home’s resale value and your investment.

Seattle Siding Problems

Why Seattle Homes Fail Faster Than Most

The Pacific Northwest is one of the most siding-punishing climates in the country. It’s not just the annual rainfall — it’s the combination of mild temperatures, prolonged dampness, freeze-thaw cycles in winter, and homes that were built before modern moisture management techniques existed.

Hardboard Siding: Seattle’s Most Common Problem

Tens of thousands of Seattle homes built between 1980 and 2000 — in neighborhoods like Laurelhurst, Rainier Valley, Beacon Hill, and South Seattle — were sided with pressed hardboard products like Masonite and ABTco. These products swell, buckle, and delaminate when exposed to moisture, and they were never well-suited to a climate like Seattle’s. If your home has wavy, soft, or stained lap siding that chips when you probe it with a screwdriver, you likely have a hardboard problem.

Dry Rot Behind the Surface

Failed siding doesn’t just look bad — it lets water into the wall cavity. In Seattle’s mild, damp climate, that trapped moisture creates ideal conditions for dry rot in the sheathing, framing, and window trim. We assess the full wall assembly, not just the surface, so rot doesn’t get buried behind your new siding. When we find it, our Seattle dry rot repair crew rebuilds the framing to code before any new siding goes on.

Missing or Failing Moisture Barriers

Older Seattle homes — particularly pre-1990 construction in Wallingford, Madrona, and Montlake — often have no weather-resistive barrier (WRB) behind the siding, or one that has degraded beyond its service life. When we replace siding, we install a proper WRB, integrate it at windows and doors, and add a rainscreen gap to allow wall drainage and drying. This is code-compliant installation that actually protects your home.

Common Siding Failures We See in Seattle

  • Hardboard siding swelling, buckling, and delaminating
  • Cedar siding with failed paint, surface checking, and end-grain rot
  • Fiber cement with improper caulking at windows and trim
  • Vinyl siding with impact damage and faded color on south/west exposures
  • T1-11 panel siding with delaminated edges and deep staining
  • Missing kickout flashings allowing water intrusion at roof-wall intersections
Our Process

What to Expect When You Work With Us

We keep the process simple and transparent. Here’s how a typical Seattle siding installation or full replacement runs from your first call to final cleanup.

01
Free On-Site Assessment

Paul visits your home to inspect the existing siding, wall assembly, flashings, and trim. We probe for soft spots and moisture damage before recommending any material.

02
Written Quote & Material Selection

You receive a written scope of work and itemized quote. We walk through material options, colors, and profile choices — no pressure, just information to help you decide.

03
Permit & Scheduling

We handle the permit application when required (City of Seattle and most surrounding cities require permits for full siding replacement). We schedule around your timeline.

04
Installation

Our crew removes the old siding, installs a new WRB, adds rainscreen furring where specified, installs the new siding, integrates all flashings and trim, and back-primes every cut edge.

05
Final Inspection & Cleanup

We do a full walkthrough with you at completion, pull the job permit inspection, and leave the site clean. Every nail strip, wrap scrap, and old siding board is hauled away.

Pricing

What Does New Siding Cost in Seattle?

Siding replacement in Seattle typically runs $8–$22 per square foot installed, depending on the material, wall complexity, and condition of the existing substrate. Here’s a realistic range for each material type as of 2025:

MaterialInstalled Cost (per sq ft)Best ForWarranty
James Hardie Fiber Cement$14–$20Most Seattle homes; moisture-prone neighborhoods30-year non-prorated
Western Red Cedar$20–$40Craftsman, bungalow, character homesDepends on maintenance
LP SmartSide Engineered Wood$15–$21Authentic wood grain texture; comparable to fiber cement5/50-year limited
Metal Siding (Steel/Aluminum)$30–$55Contemporary, mid-century, west-facing walls25–40-year finish warranty
What’s Included in These Ranges

Prices cover removal of old siding, new weather-resistive barrier (WRB), rainscreen furring, material, priming, trim integration, and caulking. For a standard 2-story Seattle home with 1,500–2,500 sq ft of wall area. Complex rooflines, multi-story walls, or extensive trim push toward the higher end.

James Hardie fiber cement siding
A Note on “Cheap” Siding Quotes

If you’re getting quotes under $8/sq ft in Seattle, ask whether the bid includes a new WRB, back-priming, rainscreen furring, proper flashings, and permit fees. Skipping these steps is how water gets in — and how a $15,000 siding job becomes a $40,000 structural repair in five years.

Frequently Asked Questions

Still comparing Seattle siding contractors? Read our full Best Siding Contractor in Seattle buyer’s guide — seven criteria, eight phone-screen questions, and eight red flags.

Seattle Siding Contractor FAQ

How do I compare siding companies in Seattle?
Get three line-itemized written quotes and compare scope, not just totals. Many of the siding companies Seattle homeowners shortlist will quote a board-for-board swap that skips the WRB, flashing, and rot repair underneath — the parts that decide whether the new siding lasts. Ask each company what happens when they find rot, whether the quote includes moisture-barrier replacement, and who actually performs the work. GP quotes fixed-price with the full wall assembly included, and Paul answers the phone.
How do I choose a siding contractor in Seattle?
Choose a siding contractor in Seattle who can show you a current Washington contractor license (verifiable at secure.lni.wa.gov), a James Hardie Alliance or Preferred certification for fiber cement work, proof of bonding and liability insurance, and documented Seattle-area projects. Ask specifically how they handle rainscreen and WRB detailing, what happens if dry rot is found at tear-off, and whether the quote is itemized or a lump sum. Any Seattle siding company that refuses to put those answers in writing is the wrong contractor.
How much does siding replacement in Seattle cost in 2026?
Siding replacement in Seattle runs roughly $14–$20 per square foot installed for James Hardie fiber cement with proper WRB and rainscreen, $20–$40 for cedar or Lunawood over cross-batten, and $30–$55 for premium Hardie Artisan or custom metal panel. A typical 2,400–3,000 sq ft Seattle home (about 3,600–4,500 sq ft of wall area) usually falls between $50,000 and $135,000 fully installed, depending on material, trim complexity, and any dry-rot repair uncovered at tear-off.
How do siding installers in Seattle handle the wet climate?
Good siding installers in Seattle build the wall assembly to dry in two directions: a drainage-plane weather-resistive barrier (like HydroGap), a ventilated rainscreen cavity behind the cladding, shingled head and sill flashing at every opening, and fiber cement or thermally-modified wood that won’t rot even if it gets wet. The cladding material matters less than the assembly behind it — any siding installed without those details will fail early in Seattle, and any properly detailed wall will last 30–40 years.
When do I need siding repair in Seattle versus full replacement?
Siding repair in Seattle makes sense when the damage is localized: a few rotted boards, failed caulk, a single wall with water intrusion, or a split corner. Full replacement is warranted when the WRB behind the siding is failing, rot has spread through framing, or the original wall has no rainscreen and is trapping moisture site-wide. We always tear off a small inspection panel first and document what we find with photos before recommending scope, so you can see exactly what you’re paying to fix.
How do I know if I need siding replacement or just siding repair in Seattle?
If the damage is isolated — a few boards impacted by a branch, or one section with failed caulking — repair usually makes sense. If more than 20–25% of your siding surface shows damage, buckling, rot, or delamination, full replacement typically gives better long-term value. During our free assessment, we give you an honest evaluation of both options. We offer siding repair and dry rot restoration For localized fixes that don’t involve structural rot, see our dedicated siding repair Seattle page. as a standalone service when that’s the right call.
What is the best siding for Seattle’s rainy climate?
James Hardie fiber cement is the most widely recommended material for Seattle homes because it doesn’t absorb moisture, won’t rot, and holds paint well in wet conditions. Western red cedar is also a proven PNW choice when installed with proper back-priming and a rainscreen gap. What matters most isn’t just the material — it’s the installation: a proper WRB, kickout flashings, and a rainscreen cavity make any material perform significantly better in Seattle’s climate.
How long does a siding replacement project take?
Most single-family home siding replacements in Seattle take 5–10 business days for the installation itself. Add 1–2 weeks for permit processing (required for most full replacements in the City of Seattle) and material lead times. We schedule efficiently and keep you updated throughout — you’re never left wondering where we are in the project.
Do I need a permit for siding replacement in Seattle?
Yes. The City of Seattle requires a building permit for full siding replacement (Seattle Municipal Code 106.1). The permit process involves a plan review and at least one inspection of the moisture barrier before the new siding is installed. We handle the permit application as part of our project process. Unpermitted siding work can create complications at resale and may void manufacturer warranties.
What is a rainscreen system and do I need one?
A rainscreen system creates a small drainage gap (typically 3/8″) between the weather-resistive barrier and the back of the siding. This gap allows any water that penetrates the siding surface to drain out at the bottom rather than collecting against the sheathing, and it allows the wall cavity to dry. In Seattle’s climate, we specify rainscreen furring on all fiber cement and wood siding projects. It adds a modest cost to the project and significantly extends the service life of both the siding and the wall assembly behind it.
My home has hardboard siding that’s failing. What should I replace it with?
Hardboard products like Masonite and ABTco were widely used in Seattle-area construction from the 1980s through the late 1990s and are now notorious for failing in wet climates. When we replace hardboard, we nearly always recommend James Hardie fiber cement as the direct upgrade — it installs in similar lap profiles, looks nearly identical at a distance, and will not swell or delaminate. We also inspect the sheathing carefully during removal, since failed hardboard often means moisture damage to the OSB or plywood behind it.
Do you work in neighborhoods outside central Seattle?
Yes. We serve King and Snohomish Counties across a 25-mile radius. In addition to Seattle neighborhoods like Ballard, Fremont, Capitol Hill, Queen Anne, and Beacon Hill, we regularly work in Bellevue, Kirkland, Redmond, Edmonds, Shoreline, and many other communities. See our full service area below.
How much does it cost to side a 2,000 sq ft house in Seattle?
A 2,000 sq ft house in Seattle has about 3,000 sq ft of exterior wall area, so a full re-side typically runs $42,000–$60,000 for James Hardie fiber cement installed. Pricing by material, multiplied against ~3,000 sq ft of wall area:
  • James Hardie fiber cement (with HydroGap Drainable WRB + vented rainscreen) — $14–$20/sf installed
  • Cedar or Lunawood thermally-modified wood$20–$40/sf installed
  • Hardie Artisan or standing-seam metal$30–$55/sf installed
Wall area is roughly 1.5× floor area on a typical two-story Seattle home with gables and bumpouts. We measure exact wall area on the free assessment so the quote is grounded, not estimated from the floor plan.
What is the best time of year to install siding in Seattle?
Late spring through early fall (May–October) is the best time for siding installation in Seattle, when rain drops below 8 days per month and overnight temperatures stay above 45°F for caulk and primer cure. October–April is workable with proper dry-in protocol — we tarp at end of day, only open as much sheathing as we can dry-in by sundown, and avoid scheduling tear-off into a 48-hour rain forecast. Spring quotes typically book into late summer, so if you want a summer install get the assessment on the calendar by February or March.
What is the 30% rule in remodeling and does it apply to siding?
The 30% rule says don’t spend more than 30% of your home’s value on a single renovation if resale return matters — and for siding in Seattle it’s rarely a constraint. A typical $50K–$100K Seattle re-side runs 5–10% of home value on a $1M home. Per Remodeling Magazine’s Cost vs. Value report, fiber cement siding consistently recoups 80–88% at resale in the Pacific region — one of the highest ROIs of any exterior project. The rule matters more if you’re stacking a kitchen, bath, and addition into the same year — add the totals before signing each scope.
Seattle Neighborhoods

Siding Contractor — Across Seattle Neighborhoods

We serve homeowners throughout King and Snohomish Counties. In addition to full siding replacement in Seattle, we have dedicated service pages for nearby communities:

Don’t see your city? Call or text Paul — we cover most of King and Snohomish County and can confirm whether your address falls within our service area.

Done Dealing With Seattle Siding Contractors Who Don’t Call Back?

We’re a licensed Seattle siding contractor with a James Hardie Certified Installer credential, a 5‑year workmanship warranty, and a fixed-price quote you actually get to see before you sign. Paul picks up the phone.

Licensed & bonded in Washington State. Verify our L&I.

Estimate Calculator

What Will Your Siding Project Cost?

Quick ballpark calculator based on real 2026 Seattle installed pricing. Not a binding quote — but an honest starting point.

Estimated Installed Range
May Apply (Not Included Above)
Permit
$300–$900
Varies by city
Substrate Repair
$2–4 / sq ft if needed
Ranges vary based on home complexity, existing moisture damage, and permit requirements. Free on-site assessment gives you the exact number.
Get Accurate Written Quote →See full pricing rates →

Neighboring service areas

Bellevue (15 min east) · Shoreline (15 min north) · Mercer Island (10 min east)