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.
Trusted Garage Door Repair for Longmont Homeowners
Garage door repair in Longmont typically costs $150-$600, and most spring and cable failures can be resolved the same day we diagnose them. We’ve been doing this work since 2015, with more than 18,000 doors made right across Boulder County and the northern Denver metro, and every single job started with a written price before any work began. If your door won’t open, sags on one side, or sounds like a gunshot when the spring lets go, call us at (970) 528-5851. A live person answers, 24 hours a day, and we’ll name a technician and send an on-the-way text, not a callback window.

What Our Garage Door Repair Service Includes
Repair work is not one-size-fits-all, so we quote it by the component. Here’s what each repair involves and how we handle it in Longmont specifically.
Spring Repair
Torsion springs are the coiled steel shafts above the door that carry its weight; they’re rated for a cycle count, and when one breaks, the door won’t lift. In Longmont’s dry, high-UV climate, springs tend to fail at the coil rather than stretch, which we identify by measuring wire diameter and counting the remaining coils. We replace springs in matched pairs, not singles, because the second spring is typically within 10% of its rated life, and we quote the pair at a flat price before we start.

Cable Repair
Cables run from the bottom brackets up to the drum at each end of the spring shaft, and a frayed cable means the door is being lifted unevenly, which strains every other component. We see this most often on the older ranch houses in Old Town Longmont, where doors predate current safety standards and cables have worn through at the drum. We replace cables in pairs and re-level the door as part of the Cable Repair job, because a new cable on an unbalanced door fails again within months.

Panel Replacement
A backed-into bottom panel or a hail-dented second row compromises the door’s structural stiffness and its seal against Longmont’s winter wind. We color-match replacement panels against the existing door’s fade, which matters more here than in most markets because front doors on the west side of town take direct afternoon sun. If the panel is no longer manufactured, we’ll tell you that on the first visit and quote the Panel Replacement option that preserves the rest of the door.

Track Realignment
Vertical tracks bolted to the wall and horizontal tracks carried by hangers define the door’s travel path; when a roller pops out or the door shudders on the way up, a track has shifted. Foundation movement in Longmont’s expansive clay soils can throw tracks out of alignment even when nothing hit the door. We check track position against a level and the door against the opening, then re-shim and re-torque the brackets and hangers rather than bending track by hand.

Roller Replacement
Rollers ride inside the track and wear at the bearing; steel rollers get noisy, and nylon rollers develop flat spots from the freeze-thaw cycles Longmont gets every December through February. We swap worn rollers for high-cycle nylon units with sealed bearings during Roller Replacement, which cuts the noise and tightens the door’s travel. If one roller has failed, we inspect all of them, because a door that binds on one side chews through the rest within a season.

Sensor Calibration
Photo eyes sit about six inches off the floor on each side of the opening and stop the door if anything breaks their beam; if they’re out of alignment, the door reverses for no visible reason. Dust and cobwebs accumulate on the lenses faster in Longmont’s windy months, and the sun angle in late afternoon can trigger false reverses on west-facing garage doors. We clean, align, and test the sensors under load as part of Sensor Calibration, then verify the reversal force so the door stops without slamming.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Brands We Service for Garage Door Repair

We work on all eight major brands, and we stock OEM parts for the three we see most in Longmont. LiftMaster drives the majority of openers in this market, and we keep their logic boards, gear kits, and safety sensors in the truck, so an opener repair doesn’t wait on a parts run. Chamberlain is LiftMaster’s consumer line, and the repair difference is usually in the rail assembly and the belt-drive carriage; we carry both configurations. Genie’s screw-drive openers show up in a lot of homes built in the 1990s and early 2000s across the Fox Hill and Westlake neighborhoods, and we service the carriage and limit switches specifically for those models.
Clopay doors are heavily represented in Longmont’s newer subdivisions on the southwest side of town, and we keep their standard panel profiles and torsion spring wire diameters on file. Whether you have one of those brands or any other make, we’ll quote the repair by the component, not the badge on the door.
Before
AfterSigns You Need Garage Door Repair Right Now
- The door jerks or shudders on the way up. That’s almost always a track alignment or roller issue, and every cycle is adding wear to the spring and the opener gears. What starts as a $120 realignment becomes a $500 spring-and-opener job if it’s left alone.
- You heard a sharp, loud bang from the garage. A torsion spring under tension just lost its load, which means the door is dead weight and the opener can’t lift it without burning out. Spring replacement in Longmont runs $180-$340, and it’s a same-day repair in most cases.
- The door reverses right after touching the floor. The photo-eye sensors are out of alignment or the close force limit has drifted, which makes the door unsafe to leave open or closed. A sensor calibration fixes the reversal, and we check the force settings as part of it.
- Cables look frayed or one side of the door sags. A frayed cable is a failure in progress, and a sagging door means the spring has lost tension or a panel joint is pulling apart. Under-load cable failure can drop the door suddenly, so don’t operate it until it’s inspected.
- The door is noisier than it was six months ago. Grinding from the opener means the gear or the carriage is wearing; squealing from the hinges and rollers means the door is working harder than it should. Noise is the earliest warning a component is about to cross from wearing to failed.
Our Garage Door Repair Process - Step by Step

We follow a documented process on every repair because the customer deserves to see the evidence before writing a check. Here’s how a typical repair call goes in Longmont.
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Diagnosis with photos. The technician inspects the door, identifies the failed component, and photographs it. Clause 4 of The Haven Standard is why the customer sees the broken spring or the frayed cable before anyone quotes a replacement. You don’t take our word for it; you look at the same photo we’re looking at.
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Written flat price, written scope. Before any work starts, you receive a written price and a written description of exactly what we’ll replace and why. No ‘call for a quote’ here, that’s a violation of Clause 1 and it’s not how this business runs.
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Repair work completed. The technician installs the parts, torques everything to spec, and tests the door under load. We don’t just verify the new component works; we run the full door through its cycle and check balance, travel limits, and reversal force.
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Photo record of completed work. You receive documentation of what was found and what was done before we leave. The same camera that diagnosed the failure records the repair, so there’s a paper trail from first visit to final walkthrough.
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Walkthrough and warranty. The technician shows you the work, explains what was replaced and why, and leaves you with the written warranty. The 365-Day Done Right Promise backs every repair: if it’s not right, we make it right.
How Much Does Garage Door Repair Cost in Longmont?
Here are the price ranges we quote in Longmont, by repair type, so you have a baseline before the technician arrives.

- Spring repair: $180-$340
- Cable repair: $130-$250
- Opener repair: $120-$320
- Track realignment: $120-$240
- Roller replacement: $110-$220
- Panel replacement: $250-$500
- Opener installation: $250-$550
- New door installation: $700-$2,200
A typical garage door repair in Longmont runs $150-$600 depending on which component failed and how many need attention. What moves the price: whether the spring broke at one coil or two, whether the cables and rollers are worn out at the same time, and whether your door is a standard size or a custom-height unit on an older home in Old Town. What doesn’t move the price: how much we think you’ll pay, how busy we are that week, or how much you know about garage doors.
The best way to avoid overpaying is to get a written, itemized quote before work starts. Our estimates are free, and they’re flat: the number we write down is the number you pay if you approve the work on the spot. If you have a written estimate from another company, bring it in and we’ll give you a Free Second Opinion on it, no coupon required.
Garage Door Repair Near Longmont - Our Service Area

We’re based in Longmont and handle repair calls in Niwot, Frederick, Erie, Lafayette, Boulder, Louisville, Broomfield, Fort Lupton, and the northern Denver suburbs including Northglenn, Thornton, and Westminster. Same-day repairs are available throughout Longmont on weekdays, and emergency calls are answered by a live person around the clock. If you’re in a neighboring town, check our Garage Door Repair in Longmont page for local pricing or call the main line for current scheduling. We also maintain dedicated service pages for Garage Door Repair in Niwot and Garage Door Repair in Frederick for customers on the north side of Boulder County.
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.
Frequently Asked Questions - Garage Door Repair in Longmont

Garage door repair is the diagnosis and correction of a specific component failure: a broken torsion spring, a frayed cable, a misaligned track, a worn roller, a dead opener, or a failed safety sensor. In Longmont, most repairs involve spring or cable work on doors between five and fifteen years old. We quote the repair by the component at a flat price, never by the hour or by how the door ‘looks.’
Most repairs take 45 minutes to two hours, depending on the component and whether multiple parts need replacement. A single spring replacement is usually under an hour; a panel replacement with color matching and track realignment can run two to three. We quote a written price before we start, so you know the number even if the job takes longer than expected.
Most garage door repairs in Longmont run $150-$600, with spring repair at $180-$340, cable repair at $130-$250, and track realignment at $120-$240 as the most common line items. The final number depends on which components failed and how many need replacing. Call (970) 528-5851 for an exact quote on your specific door; estimates are free and the price is always written down before work starts.
Yes. We stock LiftMaster logic boards, gear kits, and safety sensors, and we carry Chamberlain rail assemblies and belt-drive carriages, which means most opener repairs are completed in a single visit without waiting on parts. We also service Genie screw-drive openers, particularly the models common in 1990s and early 2000s homes in Longmont. Your opener brand doesn’t change the price structure; the component failure determines the quote.
Yes. Our phone is answered by a live person 24 hours a day, 7 days a week, including holidays. A broken spring or a door that won’t close is an emergency in our book, and we’ll name a technician and send an on-the-way text rather than a callback window. Call (970) 528-5851 any time, day or night.
Every repair carries the 365-Day Done Right Promise: if a repair is not right, we make it right within one year. The warranty is written, not verbal, and it’s tied to the component we replaced and the work we performed. That’s the same promise we’ve operated under since 2015, documented by the photo record you receive on every visit.
Clear the area around the door track and the opener motor so the technician has working room, and if you have a written estimate from another company, set it out for the Free Second Opinion review. No need to disconnect anything yourself; leave the door as it is, especially if a spring has broken, because touching a spring under residual tension can cause serious injury. We’ll handle the rest from the moment we arrive.
Yes. A torsion spring is under hundreds of pounds of tension, and if it breaks while someone is working on the door, the released force can cause serious injury. Don’t attempt to adjust, remove, or replace a spring yourself; this is a job for a trained technician with the right winding bars and experience. Call us and we’ll handle it with the proper tools and a written price before any work starts.
Schedule Your Garage Door Repair Service in Longmont Today
Call (970) 528-5851 for a free, no-obligation repair estimate. We’ll quote a flat price and written scope before any work starts, include a photo record of everything we find and everything we fix, and back the repair with the 365-Day Done Right Promise. Marcus Deller and the Servo Garage Doors Longmont team answer live 24/7, including emergency calls on nights and weekends.
Written by Marcus Deller, Owner at Servo Garage Doors Longmont, serving Longmont and Boulder County since 2015.






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