Full 25-point door and opener safety check with every visit - springs, cables, rollers, tracks, and your LiftMaster or Chamberlain opener included
You get a price before we start. It does not change when the truck arrives.
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AfterGarage Door Company in Longmont, CO
Marlow Garage Door Repair serves Longmont homeowners with same-calendar service on every garage door issue, from snapped springs to doors that won’t budge. What changes the work here versus Boulder or Westminster is the combination of 5,000-foot elevation and hail that hits hard enough to peel paint off trim. We stock parts locally, carry the common sizes on the truck, and quote every Longmont job before a wrench touches anything. Call (512) 883-4374 and a real person picks up, 24/7.
Why Longmont Homes Are Different
Longmont’s housing stock runs a wide span: original alley-loaded single-car garages near downtown, two-car attached doors from the 1970s to 1990s throughout the east side, and three-car side-load garages in southwest subdivisions built after 2000. A torsion spring that works fine on a 1992 track-hung door in East Longmont might be badly under-tensioned on a newer three-car door off Nelson Road, because the weight and headroom differ so much block to block.
The bigger factor is elevation. At roughly 5,000 feet, garage door springs need a slightly tighter pre-load than the same door would down in Westminster or Arvada. If a tech sets springs to Denver’s lower-altitude spec, the door sags mid-cycle, the opener labors, and the spring fails early. Add the Front Range hail belt on top of that. June storms can dent steel and crack wood panels while also throwing balance slightly off, which then wears the spring faster. Doors in Longmont get two compounding stresses: impact from above and altitude underneath.
Some parts of town have a third complication. Homes within a block or two of the St. Vrain Greenway often carry silt and rust patterns in the bottom panel and track from the 2013 flood. That rust hides behind the weatherstrip, eventually seizing the bottom rollers and bending track. A tech who knows what post-flood damage looks like will spot it from the driveway before the door even goes up.
Our Main Longmont Services
Longmont homeowners call us most often for two things: a door that stopped mid-cycle because a spring broke, and a door that suddenly won’t lift because a cable came off its drum. Each has its own dedicated page below.
Garage Door Repair in Longmont
We handle doors that refuse to open, open partway, grind, shake, or come down too fast. On Longmont’s east side, where two-car attached doors from the 1980s and 1990s dominate, we see a lot of worn rollers and loosened track bolts, along with opener control boards failing after years of temperature swings. On newer southwest builds, the issue is more likely a misaligned safety sensor or a door knocked out of balance by hail impact. We show up with the right parts and a written price before any work starts. Garage Door Repair in Longmont
Garage Door Spring Repair in Longmont
A torsion spring, the horizontal coil above your door that does most of the lifting, is wound for a specific door weight and a specific altitude. In Longmont, that means a spring set for 5,000 feet, which is slightly tighter than what a Denver-based tech would set. When a spring snaps, the door becomes dead weight. Our techs identify the spring’s cycle rating, wire gauge, and inside diameter before pulling out the old one, then set the new spring to Longmont conditions and balance the door. Garage Door Spring Repair in Longmont
Garage Door Cable Repair in Longmont
Cables are the braided steel lines running up each side of the door that connect the spring system to the bottom corners. When a cable frays and breaks, the door drops hard to one side and jams. In Longmont, moisture exposure is the big contributor: doors near the St. Vrain corridor or with northwest-facing exposure accumulate condensation overnight, and the cable rusts where it wraps the drum. We replace cables in sets so both sides wear evenly, and we inspect the drum and spring while we’re at it. Garage Door Cable Repair in Longmont
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Longmont
We maintain and repair Chamberlain, Genie, Clopay, and Amarr systems, along with four other major brands. Our techs carry common parts for these doors on the truck, so most Longmont jobs finish in one visit. Every repair is covered by the 365-Day Done Right Promise. See our brands for the full list and what each one tends to need.
Pricing for Garage Door Company in Longmont, CO
| Service | Typical range in Longmont |
|---|---|
| Spring repair | $180 – $340 |
| Cable repair | $130 – $250 |
| Opener repair | $120 – $320 |
| Opener installation | $250 – $550 |
| Panel replacement | $250 – $500 |
| Track realignment | $120 – $240 |
| Roller replacement | $110 – $220 |
| New door installation | $700 – $2,200 |
| Garage door repair (general) | $150 – $600 |
What moves a Longmont quote up or down is mostly spring type and the condition of the track. A door that’s rusted along the bottom or bent from hail needs more labor than a clean, well-maintained unit. Whatever the number, you get it in writing before we start, and the price we quote is the price you pay.
Neighborhoods We Serve in Longmont
We cover all of Longmont, from the alley-loaded garages near downtown to the newer side-load three-car garages in the southwest. Our dispatch is coordinated from the Denver office, and crews serve Longmont locally, so most calls get same-day or next-morning service.
- Old North Longmont
- East Longmont
- Fox Creek Farm
- Quail Crossing
- Somerset Meadows
Service Area – Cities Near Longmont
While this page covers Longmont specifically, we also take calls from nearby Front Range communities. If you’re in Boulder, CO, Westminster, CO, Arvada, CO, or Greeley, CO, the same pricing, the same live 24/7 answer, and the same 365-Day Done Right Promise apply.
Serving Longmont, CO - Our Local Coverage Area
We’re based in the Longmont area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Garage Door Company in Longmont
Most Longmont calls are answered same day, and a significant portion get service within 24 hours. You’ll see a live arrival window on your phone and can track your tech as they drive. Call (512) 883-4374 to find out what today looks like.
Most repairs and replacement work on an existing door don’t require a permit in Longmont, but if you’re altering the opening structure or adding a new door where none existed, the city may want a review. We’ll tell you what applies to your specific job before quoting.
No. The written price is locked before any work starts, and the invoice matches the quote every time. If the tech finds something unexpected, you’ll hear about it and approve any additional line item before it’s added.
What happens when you call
- 1A real person answersNo phone trees - talk to a local garage door pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Longmont Customers Say
"I could see the tech's name and ETA in the text. Showed up right when the tracker said. Cable repair done in under an hour."
- Omar B."Safety sensors realigned. Tech texted before arriving and after finishing."
- Candice L."Quote came by text before the visit and didn't change."
- Holly T.