Cracked panels, warped boards, peeling paint — these are signs your siding is failing before your eyes. Forge Siding delivers professional Siding across Boulder, CO with upfront pricing and crews who show up on schedule.

We didn't start Forge Siding to push volume — we built it because homeowners in Boulder kept getting burned by crews who cut corners on material selection, skipped moisture barriers, and left job sites messy. That's not how we work. Every Siding project starts with an honest assessment: we look at your substrate condition, check for existing rot or moisture intrusion, and talk through your options before a single nail goes in.
Every estimate is itemized and written down before we ever ask for a signature. You'll see material costs, labor, disposal, and any underlying repair work broken out separately — so you know exactly what you're paying for and why. We've completed thousands of Siding projects across Boulder, CO and our callback rate is under two percent. That number matters to us.

Siding doesn't fail overnight — it gives you warning signs first. Catch them early and a repair handles it. Miss them, and you're looking at rot, mold, and structural repairs on top of the siding bill.
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.
Panels that bow outward have usually absorbed moisture or were installed without adequate expansion clearance. Warped vinyl or fiber cement can't seal properly at the joints, so the problem accelerates.
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.
A missing panel after a wind event or impact isn't just cosmetic damage. That exposed sheathing is collecting rain until you replace it. This is one repair that can't wait for a convenient schedule.
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.
Every job below starts with a free written estimate. We specify the product, the profile, the color, and the installation method upfront — so there's no ambiguity when work begins.

Fiber cement comes in lap, panel, and shingle profiles, and we've installed all three on everything from Cape Cods in historic neighborhoods to large multi-unit builds. Correct installation matters enormously with this material — improper fastening or insufficient clearances void the warranty and cause edge-swell failures. Our lead installers are trained to the spec sheet, not just to what looks right on the jobsite.

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 CO'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.

Engineered wood is popular in Boulder neighborhoods where the traditional wood look matters architecturally but the maintenance demands of real cedar or pine aren't practical. We install with stainless or hot-dipped galvanized fasteners to prevent iron staining at the nail head — a detail that separates a professional installation from a quick flip job.

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.
Commercial and multi-unit projects have different demands — larger panel formats, longer exposure to foot traffic and equipment contact, stricter fire ratings in some occupancy classes, and coordinated scheduling with other trades. Forge Siding handles commercial cladding projects in Boulder, CO with full project management: dedicated site supervisor, daily progress reporting, and material delivery coordinated to minimize storage and laydown area on constrained sites.
Soffit ventilation is often compromised during re-siding work when installers don't maintain existing vent openings or fail to add ventilation where it was previously missing. We verify soffit net-free vent area against attic square footage before closing up the overhang — because your roofing contractor will find the problem later if we don't.
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.
The estimate covers every line item — material, labor, disposal, permit fees if required in your jurisdiction. You pick the product, the profile, and the color with our input on what's going to perform best for your specific wall orientation, climate exposure, and substrate condition.
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 CO, full general liability, and workers' compensation. We'll email you the certificates before we arrive — not after you ask three times.
You see the number before you sign — and the invoice matches the estimate. If scope changes come up during demo, we stop work, show you what we found, and get written approval before proceeding. No invoice surprises.
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.
Old siding demo generates a lot of debris — old panels, nails, housewrap, fasteners. We haul it out daily. Your driveway, lawn, and landscaping are clean at the end of every work day — not just at project completion.
Our workmanship warranty covers what we did and how we did it. The product carries the manufacturer's own warranty on top of ours. That means your home is protected twice — by the material the manufacturer stands behind, and by the installation Forge Siding guarantees.
Call to Learn More — +1-844-782-0929We don't cherry-pick — these are verbatim accounts from homeowners who hired us for Siding work across Boulder, CO.
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.
I manage a twelve-unit building in Boulder and we needed LP SmartSide on three facades before winter. Forge Siding coordinated with our property manager, worked around tenant schedules, delivered materials in two staged drops to keep the lot clear, and finished four days ahead of the original schedule. Commercial billing was clean and documented. They're on our preferred vendor list now.
We went with insulated vinyl — Forge Siding recommended the insulated backer for our exposure and the energy savings have been real. First heating season after the install, our gas bill dropped noticeably. Installation crew was professional, on time every day, and the lead installer walked me through every elevation before he called the project done.
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 Boulder, CO 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 Boulder 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.
Reach us at +1-844-782-0929 and we'll confirm service at your location. Most addresses in and around Boulder are within our standard service radius with no travel fee.

Don't let failing siding go another season. Call Forge Siding and we'll have an estimator out to your property within 24 hours.
Schedule My Assessment — +1-844-782-0929