When your exterior starts failing, the clock is already ticking. Forge Siding provides full Siding in Mercer Island, WA — from initial assessment to final cleanup — so your home is protected and your curb appeal restored.
Forge Siding grew out of a simple frustration: too many Mercer Island homeowners were paying good money for Siding work that failed inside five years. Wrong profiles, wrong fastener gauges, no housewrap — then the callbacks never came. We do it right the first time, using manufacturer-recommended installation methods and materials rated for WA's specific climate demands.
Our crews are licensed, carry full general liability and workers' comp, and every lead installer has completed manufacturer certification training. We work with fiber cement, engineered wood, vinyl, and steel systems — and we'll tell you straight which one makes the most sense for your home's structure, your local weather patterns, and your budget. No upselling, no pressure.
Most homeowners don't notice siding problems until water damage has already reached the sheathing. These are the signals worth acting on before the repair scope doubles.
Even a small gap at a butt joint or around a window trim is an entry point. Water wicks in, freeze-thaw cycles widen the gap, and the damage compounds every winter.
Buckling almost always means the substrate underneath has moved — often because moisture got behind the panel weeks or months ago. The panel is showing you the symptom, not the cause.
Interior peeling close to an outside wall isn't a paint problem — it's a moisture infiltration problem. Your siding is the likely culprit and ignoring it turns a siding job into a drywall and mold job.
Panels that have pulled away from the wall are an open door for pests, moisture, and cold air. Nails back out over time when the substrate is soft — often a sign of prior water damage underneath.
Compromised siding reduces your wall assembly's thermal performance. If you've noticed climbing heating or cooling costs without an obvious cause, degraded siding — especially if it's letting air infiltrate — is worth investigating.
Heavy algae or mold staining on the exterior surface isn't just cosmetic — it means the surface is retaining moisture long enough for organic growth. That moisture is also working its way into the wall system.
From a single damaged panel to a complete re-side on a large commercial property, we handle the full range of exterior cladding work — and we do it with the same crew standards regardless of job size.
Fiber cement is the workhorse material we recommend most in WA's climate — it handles humidity, impact, and UV better than most alternatives and carries manufacturer warranties that actually hold up. We're certified installers for HardiePlank, HardieShingle, and competing fiber cement systems. Installation follows manufacturer specs to the millimeter: correct lap, correct fastener type and spacing, correct clearance from grade and roof surface, and full housewrap integration on every project.
Done right, vinyl siding is durable, low-maintenance, and cost-effective. Done wrong — wrong gauge, wrong fastener pattern, no expansion clearance — it warps in the heat and pulls loose in wind. We use .044" and .046" gauge panels minimum and follow thermal expansion specs precisely for WA's temperature range. Nail hem fastening at 16" centers, 1/32" expansion gap at all trim terminations, and a fully integrated vinyl accessory system so the corners, J-channel, and window trim all work together.
LP SmartSide and similar engineered wood products split the difference between the look of real wood and the dimensional stability of manufactured products. They're primed at the factory, accept field-applied paint well, and hold up to impact and moisture better than OSB or solid wood. We use LP SmartSide Trim & Fascia alongside the panel and lap systems so the trim package matches — no mixing incompatible products that age differently.
Not every siding problem needs a full re-side. Storm impact, vandalism, or isolated rot can often be addressed with a targeted repair that blends into the existing field. We stock common profiles and can often source discontinued patterns through our supplier network for historic or older homes where matching matters. Partial replacement work is priced honestly — if we see a repair scope that's going to creep, we say so before we start, not after.
We work with metal panel systems, large-format fiber cement, and commercial-grade vinyl for multi-family and light commercial applications. EIFS compatibility work, expansion joint detailing, and coordination with waterproofing and window subcontractors are all in scope. We carry the insurance requirements for commercial GC work and can provide certified payroll documentation for public projects.
Siding that terminates at rotted or missing fascia boards isn't protected — it's channeling water straight into the rafter tails. We routinely pair siding replacement with trim, soffit, and fascia work so the entire exterior envelope is addressed in one mobilization rather than two. PVC trim board, prefinished aluminum coil, and fiber cement fascia are all in our wheelhouse.
We built our process around the two complaints we heard from homeowners most: contractors who didn't communicate, and scopes that changed after signing. Here's exactly how a Forge Siding project runs from start to finish.
A thorough inspection before we quote means the estimate we hand you is accurate. We check the substrate, the existing housewrap or vapor barrier, window and door flashing, corner and soffit condition — all of it — so there are no hidden surprises once demo starts.
You receive a line-by-line written estimate: material cost by product and quantity, labor, removal and disposal of existing siding, and any sheathing repair identified in the assessment. We walk through material options with physical samples, not just catalog photos. You sign off on the spec before we order anything.
Your start date is locked at signing. Crew arrives on time, materials are staged and ready, and the site is protected before demo begins. We run a tight job — no leaving panels exposed overnight when rain is in the forecast.
At project completion, we walk the entire exterior with you. Every run of siding, every corner, every trim termination — you look at it before we close out. If anything isn't right, it gets fixed on the spot. Our goal is that you refer us to your neighbor the week after the project wraps.
Every crew that works on your home carries a current contractor's license for WA, full general liability, and workers' compensation. We'll email you the certificates before we arrive — not after you ask three times.
Upfront pricing means you know what you're paying before a single panel comes off the wall. Change orders require your written approval. We've built our reputation in Mercer Island, WA on the fact that our estimates are reliable.
When we book your project, we commit to a start date. No bumping you for a bigger job, no weeks of silence after signing. We operate with enough crew capacity to honor the schedule we gave you.
We've seen what happens when crews leave siding debris sitting for a week. Nails in the lawn, panels blocking access, dust in the HVAC intake. Our cleanup protocol runs end-of-day, not end-of-project.
Every Siding project we complete is backed by our written workmanship warranty. If anything we installed fails due to installation error — a panel pulls loose, a trim joint opens, moisture gets in at a transition we sealed — we come back at no charge and fix it. Not a credit, not a partial. Fixed.
Call to Learn More — +1-844-782-0929Straight from the homeowners we've worked with across Mercer Island and Mercer Island, WA.
We had three other quotes before calling Forge Siding. The difference was the inspection — they actually walked the whole house with a moisture meter and found soft sheathing behind two panels on the north wall that nobody else mentioned. The estimate covered the sheathing repair too, so no surprise charges when demo day came. Final result is clean and tight. We'd hire them again without hesitation.
A storm took out a whole section of vinyl on the east side of our house. I called four contractors — three of them said they'd have to replace the entire elevation because they couldn't match the profile. Forge Siding's estimator sourced a matching panel through their supplier network and did a clean repair. You can't tell where the new material starts. Saved us probably $4,000 compared to a full-side re-do.
The fascia and soffit on our older home were rotting away and we assumed it would be a nightmare project. Forge Siding quoted it alongside the siding replacement so everything was done in one mobilization. The crew found two spots where the rafter tails had started to soften — they showed me photos before touching anything and walked me through the repair options. The whole exterior looks like a different house now.
The estimate process was refreshingly honest. The estimator told me upfront that my old OSB sheathing had delaminated in two areas and would need replacement before new siding could go on — with photos and a written line item. No one had mentioned that in the other quotes. Forge Siding fixed the sheathing, installed the HardiePanel system, and the project cost exactly what they quoted including the repair.
I'm a home inspector by trade, so I know what cutting corners on a siding installation actually looks like behind the panels. Forge Siding's work is correct — right fastener pattern, proper clearances from grade and roofline, continuous housewrap with taped seams at all penetrations. This is how it's supposed to be done and most of the crews I see in Mercer Island, WA don't do it this way.
I needed a quick turnaround on a rental property before a new tenant moved in. Forge Siding fit us in on short notice, did a clean vinyl replacement on two elevations, and the inspection cleared without a single callback item. Responsive, professional, priced fairly. That's all I ask for and they delivered all three.
Real questions, real answers — no filler.
Forge Siding sends crews to Mercer Island and every community within our regional service area. We keep local dispatch units strategically based so travel time doesn't eat into your project day — and so we can respond quickly when there's an emergency siding situation that can't wait.
Our primary service area covers Mercer Island and surrounding communities within our regional radius. Call +1-844-782-0929 to confirm service availability at your address — we'll tell you same-day.
Don't let failing siding go another season. Call Forge Siding and we'll have an estimator out to your property within 24 hours.
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