Boulder Roof Pros provides professional roofing services in Longmont, CO — Boulder County, population 98,885. From roof replacement and roof leak repair to insurance claim support, our insured team serves Longmont homes and businesses.
Longmont property owners near the Diagonal Highway, Union Reservoir count on Boulder Roof Pros for roof replacement and repair in Longmont. We bring the same roofing work we are known for in Boulder to every job in Longmont, backed by our workmanship guarantee and a free estimate.
Call (855) 888-0784 for a free roofing estimate in Longmont, or request a quote below. We respond fast and there is no obligation.
Roofing in Longmont, CO
The class you want on a Longmont roofing license is D02, Roof Covering and Waterproofing. Class E here is electrical, and the two get mixed up more often than you would expect. Longmont runs its own contractor licensing rather than deferring to the county, so a card that works in unincorporated Boulder County is not automatically a card that works inside the city limits.
Longmont is also one of four Colorado towns that own their electric utility outright. It sits alongside Fort Collins, Loveland and Estes Park as an owner community of Platte River Power Authority, a partnership first signed in 1973. That matters on a roof more than it sounds: when a service mast, weatherhead or drop has to be pulled back so we can rebuild an eave, the call goes to the city's own utility rather than to Xcel.
The housing here is broad and low. The Census Bureau's 2019 to 2023 American Community Survey counts 42,435 housing units in Longmont with a median build year of 1990, a fifth of them put up during the 1970s and another 14 percent since 2010. Sixty percent are detached houses. That spread means a 1974 ranch off Main Street and a 2016 house out toward the Weld County line are two genuinely different roofs.
On the older half, the recurring problem is the overhang. A twelve-inch eave gives ice nowhere to form away from the heated wall below it, so the dam builds directly over the soffit and the water backs up under the first two courses. Wide ice barrier and open, baffled intake do more for that house than any shingle upgrade, and we price them into the tear-off rather than offering them afterwards.
On the newer half the problem inverts. Tighter envelopes push moisture into the attic instead of out through the walls, and we find bath fans dumping into insulation, ridge vent cut without matching soffit intake, and frost on the underside of the deck in February. Neither house needs a better shingle. Both need the attic looked at first.
For hail, the record is moderate by Front Range standards. NOAA's Storm Prediction Center logged 51 reports of hail an inch or larger within five miles of the Longmont town center between 2000 and 2023. That is well short of what the Jefferson and Adams county suburbs absorb, and far more than anything in the canyons west of here.
Longmont moved to the 2024 code set together with the Colorado Wildfire Resiliency Code with effect from 1 July 2026, and publishes a 30 pound per square foot snow load taken with no reductions, a 142 mile per hour ultimate design wind speed and a 30 inch frost depth.
We reroof, chase leaks, rebuild eaves and hang gutter across the whole city, from the Diagonal Highway corridor out to Union Reservoir. Call and we will open the attic before anybody quotes you a square.
Roofing work we do in Longmont, CO
Boulder Roof Pros covers the same range of work in Longmont that we do in Boulder — nothing is carved out because the address is a few miles up the road:
- Roof Replacement — Roof replacement in Boulder is an assembly decision, not a shingle decision. A new covering laid over a plugged soffit and a leaking ceiling plane will build its first ice dam by February, so the deck, the eave protection, the intake and the exhaust get priced as one scope.
- Roof Leak Repair — Roof leak repair in Boulder starts with a question most contractors skip: is this water from outside, or is it coming out of your own house? Between November and April, a good share of the ceiling stains we are called about were never rain at all.
- Storm Damage Roof Restoration — Storm damage roof restoration in Boulder is mostly a spring job, not a summer one. The heaviest storms on this stretch of the Front Range arrive in March and April as wet upslope snow, and wet snow weighs several times what a dry January storm puts on the same roof.
- Hail Damage Roof Repair — Hail damage roof repair in Boulder has a timing problem. A summer hailstorm bruises a shingle mat without opening it, the roof looks fine from the driveway all autumn, and the leak arrives five months later during the first long melt.
- Wind Damage Roof Repair — Wind damage roof repair in Boulder deals with a wind almost nowhere else on the plains gets. Downslope windstorms come over the Front Range in winter, accelerate off the foothills, and hit the west side of town hard enough to strip roofs in long strips rather than isolated patches.
- Roof Inspections — A roof inspection in Boulder that never opens the attic hatch is half an inspection. Most of what shortens a roof at this elevation happens on the underside of the deck, where nothing is visible from a ladder or a drone photograph.
See the full list of Boulder services, or call (855) 888-0784.
About Longmont, CO — and why local matters here
Longmont sits in Boulder County with a population of roughly 98,885, close enough to Boulder that crews move between the two constantly. Local landmarks and corridors residents know well include the Diagonal Highway, Union Reservoir.
Local knowledge is not a marketing line here. Longmont properties share soil, weather, permit rules and construction eras with the rest of Boulder County, and a roofing contractor who works the area weekly already knows what fails locally and what holds up. That is the difference between a bid and an accurate bid.
Getting a free estimate in Longmont
Call (855) 888-0784 or send the form and we schedule a site visit in Longmont, usually within a couple of days. You get a written, itemized free estimate with materials and scope spelled out — no verbal ballpark, no pressure, and no charge whether you hire us or not.
We also serve Louisville, CO and the rest of the northern Front Range. Everything starts at the Boulder Roof Pros homepage.
Popular services in Longmont: Roof Replacement and Roof Leak Repair.
We also serve Louisville, CO and the northern Front Range.