Siding Contractor · Whatcom County, WA
Your siding contractor in Whatcom County, WA — based right here in Ferndale.
Siding & Window Vault works Whatcom County's hillside craftsmans, mid-century ranches, and waterfront homes from our Ferndale office — a local James Hardie Elite Contractor, not a franchise dispatching from out of state.
- ✓ Ferndale-Based Crew
- ✓ James Hardie Elite Contractor
- ✓ Licensed · Bonded · Insured
Request a free, no-obligation estimate at your Whatcom County home — measured on site, itemized, specific to your house.
4.9/5 average across all platforms — from homeowners across Northwest Washington
What Whatcom County's Weather and Housing Stock Do to Siding
Whatcom County runs from saltwater to foothills, and siding takes different punishment along the way: bay-driven rain and salt air work the Bellingham, Birch Bay, and Blaine shorelines; Fraser-outflow wind rakes the Lynden, Everson, and Sumas farm country; and heavy shade around Lake Whatcom and up the South Fork Valley toward Acme keeps walls damp and moss-fed for most of the year.
The housing stock spans a century and every kind of community: 1890s–1930s craftsmans in Bellingham and Fairhaven's historic blocks, farmhouses and post-war ranches across the Lynden and Everson valley, lake and vacation homes around Sudden Valley, Birch Bay, and Point Roberts, and 1990s-and-newer subdivisions along the I-5 and Guide Meridian corridors. Each era fails differently, and each gets a different plan.
What we see most across Whatcom County: cedar and shingle siding rotted at the bottom courses on weather-facing walls, LP-era siding from the '80s and '90s swelling at the seams, fasteners corroding early on salt-exposed shoreline homes, and moss working into joints on shaded north walls. None of it is cosmetic — by the time siding shows these signs, water is usually getting behind it.
…and every community in between, county-wide.
What New Siding Returns on a Whatcom County Home
Whatcom County's housing market rewards exterior condition — buyers compare street by street, and appraisers see siding before they see anything else. National cost-vs-value data consistently ranks fiber cement siding replacement among the highest-returning exterior projects at resale, and in a wet-climate market, "recently re-sided" answers the first question every inspector asks.
What your project costs depends on material, home size, and stories — and on what we find under the old siding. That's why every bid is measured on site and itemized: the number you approve is the number you pay. On a full-home re-side, sheathing rot repair is typically included at no extra cost, and anything past the sheathing, which is very uncommon, is quoted as a change order.
What We Recommend for Whatcom County Walls
For most Whatcom County homes, fiber cement — it shrugs off saltwater rain on the shoreline, Fraser Valley wind in the farm country, and the moss pressure of shaded foothills lots without cedar's repaint cycle. On craftsman-era homes, lap and shingle profiles keep the period look in a material that doesn't rot at the bottom course.
One thing we don't install: vinyl siding. In this climate it traps moisture against the wall and fails in ways we're not willing to warranty. If budget is the driver, ask us about financing options.
Everything We Do in Whatcom County
One local contractor for the whole exterior — each service has its own Whatcom County page with local details.
Our Recent Work
Real SWV projects from across our five-county service area — ask to see finished work near your own neighborhood at your estimate.
See All Projects →
Photo tours of 24 Whatcom County projects
- New Siding, 1914 ProportionsSiding
- A 1918 Craftsman, Back in BlueSiding
- The Cottage the Neighbors ComplimentSiding + windows
- A Modern Farmhouse in Arctic WhiteSiding + windows
- Retiring the Asbestos SidingSiding
- Boothbay Blue, at a Third of the Other BidSiding + windows
- A Referral in Boothbay BlueSiding
- A Commercial Exterior, Rebuilt and ModernizedCommercial
- A Beach Cottage in Deep OceanSiding
- Set Up for Its Next Hundred YearsSiding
- Evening Blue Under Three ArchesSiding + windows
- The Re-Side That Solved a Moisture MysterySiding
- Iron Gray and Twelve New WindowsSiding + windows
- The Shake House That Stayed a Shake HouseSiding
- A Duplex in Mountain SageSiding
- A Victorian Keeps Her ColorsSiding
- From Builder Panel to Evening Blue LapSiding
- Primed, Flashed, and Ready for PaintSiding
- Fifteen Windows and the Walls Around ThemSiding + windows
- Re-Siding a Working Self-StorageCommercial
- The Month the Walls WaitedSiding + windows
- Out from Under the StuccoSiding
- The Two-Word ReviewSiding
- Charcoal Over the Berry FieldsRoofing
Our Recommendation for Whatcom County: James Hardie Fiber Cement
We recommend fiber cement — James Hardie specifically — and it’s the only siding we recommend for Whatcom County homes. In a wind-driven-rain state, fiber cement doesn’t rot, doesn’t feed moss, doesn’t warp, and shrugs off the freeze-thaw cycles that crack lesser boards. It carries a 30-year limited warranty on the boards, and ColorPlus factory finishes carry their own 15-year limited finish warranty.
As a James Hardie Elite Contractor we install to the spec that keeps that warranty valid — fastening, clearances, and flashing details checked on every wall. For Whatcom County homes, Hardie is the answer we’d put on our own house.
What Exterior Work Costs in Whatcom County
Most single-family whole-home siding replacements typically land between $20,000 and $60,000, driven mainly by home size and stories. As a standalone project, window replacement typically runs $1,100–$2,500 per standard vinyl window installed depending on brand, type, and size. Windows replaced during a re-side typically run $900–$1,600 per window (20–35% less), since demolition, disposal, and administrative overhead are already carried by the siding project.
Prices change often with inflation, material costs, the economy, and tariffs and other policy changes, so these ranges are a guide, not a quote. Your written estimate has the current price for your home.
Nationally, fiber cement siding replacement is one of the best-returning exterior projects at resale — recent Cost vs. Value Report data puts its cost recoup above 100% (a national figure; local results vary). Every bid is measured at your home and itemized line by line — the ranges are for orientation, not quotes. Financing options are available.
What Stands Behind the Work
James Hardie siding carries a 30-year substrate warranty, with ColorPlus finishes warranted for 15 years. Windows carry the full manufacturer warranty.
On top of the product coverage, our own workmanship warranty is included on every project; the terms are spelled out in your bid.
How Long It Takes
A full home siding replacement typically runs one to four weeks on site depending on size, sheathing condition, rot, and whether we're painting. A whole-home window replacement typically runs three to seven days — full-frame nail-flange replacement, not pocket inserts, which takes longer and is worth it.
Your schedule is in the bid before work starts, and the final inspection is part of it.
Ranges are typical figures for orientation — every bid is measured at your home. Financing options →
Whatcom County Siding Questions, Answered Straight
What Every Siding Contractor Project Includes
No good-better-best games — every project gets the full scope, spelled out line by line in your bid.
If our installation fails, we come back and make it right. The warranty terms are spelled out in your bid — ask us for the current details.
More SWV Services in Whatcom County
Siding Contractor Near Whatcom County
Whatcom County ZIP codes served: 98220 · 98225 · 98226 · 98229 · 98230 · 98240 · 98247 · 98248 · 98264 · 98276 · 98281 · 98295
Get a Whatcom County Bid Written for Your House
A free on-site estimate anywhere in Whatcom County — measured at your home, itemized, and honest about what needs work now and what can wait.
