When your siding needs work — whether it's a full replacement, storm damage, or a long-overdue upgrade — our Longmont, CO crews show up prepared, price it fairly, and get it done right. No guesswork, no hidden fees.
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.
Our Longmont, CO teams operate on a tight scheduling protocol: we don't book jobs we can't start within a reasonable window, we communicate proactively if anything in the timeline shifts, and we don't consider a project closed until the customer signs off on the walkthrough.
Licensed, bonded, and carrying full general liability plus workers' compensation in CO — not because it's optional, but because those protections matter for homeowners who invite a crew onto their property. Ask for our certificate of insurance before signing anything; we provide it without hesitation.
Most siding problems start small and quiet — a missed fastener, a failed caulk joint, a crack that looks cosmetic. By the time interior moisture damage appears, the repair scope has usually doubled. Watch for these early signals.
Cracked panels aren't just cosmetic — they're open invitations for moisture infiltration. Any crack that reaches through the panel face needs attention.
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.
Warped vinyl often means panels were installed too tight — no expansion room for thermal movement. Over time, buckling creates gap points where panels separate at the lock, letting wind and water in.
Paint peeling from the outside isn't always a paint problem — it's frequently caused by moisture migrating through the panel from the unpainted back face. Re-painting without addressing the back-face moisture cycle just delays the failure.
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.
Failing siding, missing housewrap, or compromised flashing at penetrations significantly reduces wall R-value and allows air infiltration. If your heating and cooling costs have climbed without a clear explanation, the building envelope is a legitimate suspect.
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.
Each cladding material has its own installation requirements, failure modes, and maintenance profile — and a crew that treats them all identically is a crew that will make material-specific mistakes. Our Longmont, CO specialists understand fiber cement's silica cutting protocols and back-priming requirements, vinyl's thermal expansion characteristics and lock-engagement tolerances, and wood's moisture content sensitivity and end-grain sealing needs. We don't sell you a product and then install it generically.
Property managers and HOA boards working with us get a dedicated project point of contact, building-by-building scheduling, and standardized documentation — including permit records, warranty registrations, and post-project photo files — formatted for HOA board records and reserve fund reporting.
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."
These aren't marketing claims. They're the operational commitments our Longmont, CO clients reference when they recommend us to their neighbors.
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.
Our CO dispatch operates from locally based crews — not a regional office routing jobs to whoever's available statewide. That means faster arrival windows, familiarity with local permit offices, and crews who understand Longmont, CO building code requirements.
Our CO contractor license number is provided at first contact. Look it up in the state database before signing anything — we encourage it. We carry current general liability and workers' compensation; certificates are available on request.
A warranty that isn't in writing isn't a warranty. Ours is a document you can file, reference, and enforce.
We sweep for fasteners and nails every afternoon before leaving, protect landscaping and driveways with staging tarps, and haul debris off-site rather than leaving a roll-off on your driveway for weeks.
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.
A predictable process reduces stress and produces better results. Here's exactly what happens when you contact our Longmont, CO team.
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.
Material is ordered against the confirmed schedule. We don't start jobs with missing material. Your crew arrives on day one with everything staged and a clear sequence plan for the project.
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.
If our workmanship doesn't meet the standard we committed to in writing, we come back and make it right at no additional charge. That's not a marketing statement — it's the language in our warranty document, signed at project close. Our Longmont, CO clients get a document they can actually reference, not a slogan.
📞 +1-844-782-0929 — Free Estimate TodayThree bids, three different approaches. Forge Siding was the only contractor who showed up with a moisture meter at the estimate visit and flagged elevated readings behind our north-facing panels before we even discussed product. That kind of diagnostic thoroughness sold us immediately.
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.
Had a historic cedar profile on our 1920s home that needed matching for a repair section. Forge Siding sourced a custom-milled profile from a sample board, got it approved through the preservation office, and executed a repair that's completely indistinguishable from the original. Real expertise for an unusual requirement.
The crew found rotted sheathing on the west wall during tear-off. Called me immediately, showed me exactly what they found with photos, and gave me the change order before touching anything. The whole process was transparent from start to finish — that's exactly how contractors should handle unexpected conditions.
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
Call our Longmont, CO team now for a free on-site estimate, a written line-item quote, and a project timeline you can count on. We pick up the phone — 24/7 for emergencies, business hours for standard inquiries.
📞 Call +1-844-782-0929 — Free Estimate