Roofing Contractor in Longmont, CO

Longmont has grown from a quiet agricultural town into one of the most dynamic communities on the Front Range — and through all of it, the homes here have needed roofers who understand both the city's history and its demanding Colorado weather. Thomsen Roofing & Restoration Services is a locally owned, Boulder-based company that has served Longmont homeowners since 1985, just a short drive south. Owner Scot Thomsen has spent four decades on Front Range roofs and is still personally on every job, from the first inspection to the final walkthrough — which is exactly why more than 90% of our business comes from referrals.

Sitting at the confluence of the St. Vrain Creek with Longs Peak towering on the horizon, Longmont's neighborhoods span more than 150 years of building styles. The Old Town Historic District along Main Street is full of late-1800s Victorians, craftsman bungalows, and brick homes with steep pitches, original details, and the complex rooflines that reward an experienced hand. Established neighborhoods like Mountain View, Lanyon, and the areas around Roosevelt Park feature mid-century homes under mature trees. Newer master-planned communities — Prospect New Town with its distinctive New Urbanist design, plus the growing subdivisions spreading toward Union Reservoir and out east toward the plains — bring modern homes where proper installation and a valid manufacturer warranty pay off years down the road. From the historic core to the newest builds, Scot has worked on Longmont roofs of every era.

Longmont has a character all its own — a revitalized Main Street corridor, the St. Vrain Greenway trail system, Longs Peak anchoring the western skyline, a thriving craft-brewery and arts scene, and a community that has held onto its small-town roots even as it has grown. Many homes in Old Town and the surrounding established neighborhoods are decades old, some dating back to Longmont's founding as a planned Chicago-Colorado Colony town in 1871, and that history brings genuine charm along with roofing systems and structural details that deserve a contractor who knows what to look for.

Here's the reality every Longmont homeowner needs to understand: the northern Front Range is one of the most punishing roofing environments in the country. Longmont sits squarely in "Hail Alley," and damaging hailstorms are an annual threat — the catastrophic storms that have rolled through Boulder County in recent years have left many Longmont roofs needing full insurance restoration. The city is also no stranger to water: the 2013 flood devastated areas along the St. Vrain, a reminder of how quickly Front Range weather can turn. Heavy snow loads and the freeze-thaw cycle drive ice dams that force water under shingles, powerful downslope winds off the foothills lift and tear shingles from roofs that weren't installed correctly, and the intense high-altitude sun bakes asphalt shingles most of the year. This is why Thomsen is big on ventilation: in this climate, proper attic airflow is the difference between a roof that lasts 10 years and one that lasts 30 — and most manufacturers won't honor their warranties without it.

That's why Longmont homeowners choose Thomsen Roofing & Restoration Services. You get a GAF-certified, licensed and insured contractor with 40 years of Front Range experience, an owner who's personally on every job, a comprehensive attic ventilation assessment included on every project, all flashings and pipe boots replaced (never reused), premium materials, a strong workmanship warranty, and the manufacturer warranty kept valid by the ventilation work other roofers skip. From roof replacements and standing-seam metal roofing to hail and insurance restoration, honest repairs, and seamless gutters, one trusted local crew handles everything that protects your Longmont home from the Front Range weather. When you're protecting your biggest investment, local expertise matters — and Scot Thomsen has been bringing it to Longmont roofs since 1985.