From new construction cladding to emergency storm repairs, Forge Siding delivers field-tested Siding across Longmont and the surrounding CO service area. Call today for a free on-site estimate.
What separates our Longmont operation from the competition isn't a slogan — it's the fact that every estimate we write is signed by a licensed contractor, every project has a named lead installer accountable for the outcome, and every job site is cleaned before we leave at night.
We work on everything from single-family homes in residential neighborhoods to commercial cladding on multi-family buildings and light industrial structures across CO. If it involves protecting a building's exterior envelope, we have the tools, the certifications, and the track record to handle it properly.
Every Forge Siding project in Longmont, CO comes with a written workmanship warranty. Not a verbal assurance — an actual document with our license number, a defined coverage period, and a clear process for raising any concern after project completion.
Catching siding failure early is the difference between a repair and a replacement. Here's what to look for on your Longmont, CO property.
Hairline fractures in vinyl or fiber cement are entry points for water. Even a small crack at a window corner can let moisture work into sheathing within a few rain cycles.
Water staining on drywall near exterior walls is one of the clearest indicators of a failed building envelope. By the time interior damage is visible, moisture has usually been active behind the cladding for weeks or months.
Buckled panels rarely fix themselves. The deformation increases with each heat cycle, and the gap at the panel lock grows. This is one of those issues that gets significantly more expensive if ignored.
Exterior paint peeling within two to three years of a repaint is almost always a substrate or back-priming issue. We diagnose the cause before recommending a fix.
Fastener issues are quiet until they're catastrophic. A section that blows off in a windstorm — and the water damage that follows — costs far more to fix than a fastener re-drive.
Air leakage through a compromised siding system can account for 10–20% of HVAC load. Addressing the envelope often produces measurable utility savings alongside the repair value.
Every service below is performed by our own licensed crews — not passed off to a subcontractor network. We carry the tools, the product certifications, and the field experience for every scope we quote.
New siding installation covers everything from the housewrap to the trim: starter strip, flashing at all penetrations, panel installation per manufacturer spec, and finishing trim at corners, windows, and the roofline. We work on new construction alongside GCs and handle full tear-off replacements on existing homes. Our Longmont, CO crews are certified on vinyl, fiber cement, engineered wood, and steel panel systems — and we carry each product's installation manual on every job.
Siding repair in Longmont, CO covers a wide range of conditions: hail and wind damage after storms, impact holes from debris or accidents, failed caulk joints allowing water infiltration, loose or blown-off panels, and moisture-driven substrate damage that requires sheathing repair before new cladding can go on. Our dispatch line handles emergency calls — we triage exposure risk over the phone, deploy a crew for same-day assessment in urgent situations, and provide temporary board-up service when panels are missing and rain is in the forecast.
Fiber cement carries a 30-year material warranty when installed by a certified contractor — but only when the installation follows manufacturer specifications precisely. Our Longmont crews hold Preferred Contractor status on major fiber cement lines, meaning the full material warranty stays intact for the homeowner.
Commercial cladding projects in Longmont, CO operate on different constraints than residential work: higher fastener schedules for wind-load compliance, special inspection requirements in some jurisdictions, tighter sequencing requirements with other trades, and often a need for resident or business-continuity scheduling coordination on occupied buildings. Our commercial Siding crews are familiar with the permitting landscape in CO and have completed projects ranging from 10-unit townhome communities to larger multi-family re-siding contracts.
On replacement projects, we replace trim components that are damaged or compromised regardless of the primary panel material — because leaving old, failing trim behind a new siding installation creates the exact problem the new siding was supposed to solve.
A professional siding inspection before buying or selling a Longmont, CO property gives you panel-level condition documentation that general home inspectors can't produce. We use calibrated moisture meters, close-range panel assessment, and caulk probe testing to generate a written report with photo documentation and a priority-ranked deficiency list. Pre-purchase inspections have identified sheathing moisture damage on properties where the general inspection reported the siding as "functional."
There are plenty of siding contractors in CO. Here's what separates the ones worth hiring from the ones who cost you twice — once for the job and once for fixing what they did wrong.
Every estimate we write lists materials, labor, and any permit fees as separate line items. You know what you're paying for before signing anything — no lump-sum guesses that hide markup.
We don't schedule jobs we can't start within a reasonable window. If our current backlog means a delay, we tell you upfront and give you realistic dates — not optimistic ones.
An unlicensed crew on your property creates liability exposure for you, not just for them. Our credentials are public record and we never hesitate to provide documentation.
A warranty that isn't in writing isn't a warranty. Ours is a document you can file, reference, and enforce.
A crew that leaves a clean site every evening is a crew that respects the property they're working on. Our standard includes daily cleanup as a non-negotiable part of the project schedule.
Documentation that exists only in our files doesn't help you. We hand over a complete close-out package at final walkthrough, organized and ready for your records.
No mysteries, no moving goalposts. The same documented process runs on every project we take in CO.
Your first call goes to a real dispatcher who asks the right questions. We arrive at the site assessment with the tools to measure, probe for moisture, and give you an accurate picture of what the project actually involves.
You receive a line-item estimate within 24 hours of the site visit. We bring material samples to the estimate meeting and walk through product trade-offs relevant to your Longmont, CO property — climate exposure, HOA requirements, budget, and maintenance preference all factor into the recommendation.
Where permits are required in CO, we handle the application, filing fee, and inspection scheduling. Your confirmed start date is put in writing and we communicate proactively if anything changes — you don't have to follow up with us.
Surprises are handled on your schedule, not ours. We document unexpected findings with photos, give you the repair cost in writing, and proceed only with your explicit sign-off.
The walkthrough isn't a formality. If anything isn't right, we note it and fix it before considering the project closed. Our reputation runs on completed projects, not signed contracts.
We back every Siding project in CO with a written workmanship warranty. The warranty period, covered defects, and resolution process are all spelled out before we start. No fine print that swallows the coverage.
Talk to a Longmont, CO Specialist NowWe replaced siding on the whole house after hail damage. Forge Siding handled the insurance documentation — panel-by-panel photos, written damage report, the whole package. The adjuster approved full replacement scope on first review. Crew finished in six days, clean site every night, and the new fiber cement looks exactly like what we picked from the sample.
The estimate they provided was the most detailed written document I've received from any contractor in 20 years of homeownership. Line items for every material component, labor broken down by scope, permit fee listed separately. No surprises when the final invoice came.
I manage a 34-unit HOA community in Longmont, CO. Coordinating siding work across occupied buildings requires planning most contractors don't have. Forge Siding did building-by-building scheduling, communicated directly with residents about staging dates, and completed the project three days ahead of the contracted timeline. Comprehensive documentation delivered before final payment was due.
Fiber cement installation — the back-priming, the fastener schedule documentation, the warranty registration process — was handled exactly as the manufacturer requires. Our close-out package has the Preferred Contractor registration and the complete fastener log. The 30-year warranty is in force.
Vinyl siding on our 1970s ranch — they explained the expansion gap tolerances, why the installation they were replacing had buckled, and what they were doing differently. The finished product has gone through one full summer without a single moving panel.
I verified their license number in the state database before signing. Current, no disciplinary history. That two-minute check told me this was a contractor operating transparently. Everything about the project execution matched that first impression.
Forge Siding provides residential and commercial Siding across the full Longmont, CO service area from our local Longmont dispatch base. We're familiar with local building codes, permit requirements, and contractor licensing standards across CO — no learning curve on your project, no out-of-area crew navigating unfamiliar conditions on their first day.
Currently active in: 80501 80503 80504 and surrounding areas
Reach our Longmont dispatch line for fast scheduling, honest pricing, and a crew that actually shows up when they say they will.
📞 Call +1-844-782-0929 — Free Estimate