Plain-English answer from local Denver-metro garage door experts.
An extension spring is the older-style garage door spring system mounted alongside the door tracks (one on each side). They stretch as the door closes (storing energy via extension) and contract as the door opens (releasing energy). Less common in modern installations than torsion springs.
Extension springs were standard in older residential garage doors (pre-2000s in many areas). Modern installations have largely shifted to torsion springs because torsion springs are quieter, last longer, and are safer.
Extension springs MUST have safety cables running through them. If a spring breaks without a safety cable, the broken end can launch across the garage with enough force to kill or seriously injure someone. Federal building codes have required safety cables since the 1990s, but many older installations don't have them — call a professional to add them.
If you're replacing a broken extension spring, consider upgrading to a torsion spring system. The conversion costs more up front but the new system is significantly safer, quieter, and longer-lasting.
When you call (303) 732-8236 or fill out the reserve form, here is exactly what happens — no scripted call-center routing, no third-party booking middleman.
That entire process — phone call to door fixed — typically takes 4 to 8 hours from your first call during business hours, and we run after-hours emergency dispatch for true emergencies (door stuck open, broken spring trapping a vehicle, hail-damaged door letting weather in).
Sub-zero overnight cold snaps after wet snowfall freeze residential garage doors directly to concrete driveways — one of the most common emergency calls we run between November and March.
Garage door springs are calibrated to a specific cycle life — typically 10,000 cycles — but the temperature extremes of Colorado's high desert climate often shorten that life significantly.
This matters because most national garage door companies treat Denver like Dallas or Phoenix. They send out the same parts, the same lubricants, the same spring ratings — and then their customers wonder why a "new" garage door is squealing again 18 months later. We've seen it dozens of times: a homeowner replaces a spring through a national chain, and the second the first big temperature swing of fall hits, the new spring is already losing preload because it was rated for a sea-level service profile.
The fix is simple but it requires local knowledge. We spec springs with a higher cycle rating for our climate, we use synthetic lubricants that don't thicken in cold, we recommend insulated weatherseal designed for the dry-air UV punishment, and we know which builders used which door brands in which subdivisions across the Front Range — so we show up with the right parts on the truck the first time.
That's the difference between a Denver garage door company and a national chain that happens to have a Denver phone number. We live here. Our trucks are stocked for here. Our techs have been working on these specific doors, in these specific neighborhoods, in these specific climate conditions, for years.
To make this concrete, here are three recent jobs of this type from our Denver dispatch — what the homeowner experienced, what we found, and what it took to fix.
The homeowner called on a Tuesday morning at 7:42 a.m. — heard a loud bang from the garage at 6:30 a.m. and now the door wouldn't move. Our tech was on-site by 11:15 a.m., diagnosed a snapped torsion spring within 90 seconds (visible coil break, door noticeably heavy when manually lifted), and quoted the job at $239 installed including a 1-year labor warranty and a 5-year manufacturer parts warranty. Done by 12:30 p.m. The homeowner texted back later that afternoon to say it was the smoothest door operation they'd ever had — turns out the original spring had been undersized for the door's weight from the day the home was built.
A mid-afternoon call: the door had started making a loud clunking noise on every cycle for about a week, and that morning it had refused to fully close. Our tech arrived within the two-hour window, found three rollers worn through to the steel and one bent track section likely from a rough cycle. Quoted the roller replacement plus track repair at $289. The homeowner mentioned the door also seemed slow, so we tested the opener — found the drive belt at end of life and replaced it for an additional $79. Total job: $368, all warranted, and a door that opens and closes in under nine seconds again.
The homeowner had been quoted $1,180 by a national chain for a "complete door system overhaul." We arrived 90 minutes after the call, tested everything, and found the actual problem was a single failed wall-button low-voltage circuit. Total OnPoint job: $114 for the wall button replacement, recalibration of the safety eyes, and a fresh lubrication of the entire door assembly. The homeowner has been a repeat customer ever since.
There is no shortage of garage door companies on Google for Denver. So why do our customers stay with us, refer their neighbors, and call us back the next time something else goes wrong? Eight reasons we hear over and over:
The bottom line: we treat every Denver-area customer the way we'd want a contractor to treat our own family. That means a real phone call, a real quote, a real warranty, and a real follow-up. Nothing fancy — just the basics done well.
If you have a question about a specific door, brand, or symptom that this generic answer doesn't cover, call (303) 732-8236 for a personalized answer in 60 seconds. Our techs can usually diagnose your specific issue over the phone.
OnPoint Pro Doors serves the entire Denver metro and Front Range — Aurora, Lakewood, Boulder, Centennial, Highlands Ranch, Parker, Castle Rock, Westminster, Thornton, Arvada, Wheat Ridge, Englewood, Littleton, Brighton, Broomfield, Commerce City, Northglenn, Greeley, Loveland, Fort Collins, Longmont, Erie, Superior, Louisville, Lafayette, Firestone, Frederick, Lone Tree, Morrison, Golden, Evergreen, Conifer, Colorado Springs, Monument, Palmer Lake, Manitou Springs, Fountain, Black Forest, Falcon, and surrounding 60-mile radius. 24/7 dispatch.
Fill out the quick reserve form. We typically call back within 15 minutes — no robocall, real person.
Fill in 3 fields. We call you back within the hour.
⚡ We call back within the hour — usually within 15 minutes
Real reviews from real Denver-metro customers.
Honest pricing, no upsell pressure. Three companies tried to sell us a $2,400 'door system overhaul' for what turned out to be a $90 wall-button issue. OnPoint diagnosed it correctly in five minutes.
Tech explained what was wrong in plain English, showed me the worn parts, and didn't try to oversell. Door has been quiet and smooth for six months. Will use them again.
Called at 8 a.m. with a broken spring, had a truck at my house by 10:30 the same morning. Done in under an hour and the price matched the phone quote exactly. No surprises.
Same-day service across the Denver metro. Free estimates. Honest pricing. Real warranty. Call now and talk to a real person — usually answered in under 60 seconds.
📞 Call Now · (303) 732-8236Mon–Sat 7am–9pm · 24/7 Emergency Dispatch · Licensed & Insured in Colorado
Greeley · Fort Collins · Parker · Thornton · Aurora · Littleton · Castle Rock · Denver
Cable Roller Repair · Remote Keypad · Weatherstripping · Spring Replacement · Opener Repair · Off Track Repair
Opener Grinding · Broken Cable · Frozen Door · Off Track · Loud Noise · Door Wont Close
Castle Rock Hail · Highlands Ranch Hail · Monument Hail · Denver Hail · Commerce City Hail
While every customer call is a little different, certain failure modes show up over and over in our Front Range dispatch logs. Knowing what to watch for can save you several hundred dollars in collateral damage and can help you describe the issue accurately when you call.
Our Denver dispatch volume is highly seasonal, and knowing the pattern can help you plan maintenance:
If you have lived in another part of the country before moving to Colorado, you may notice that garage doors here have specific quirks. The combination of high-altitude dry air, intense UV exposure, hail risk, and 50°F temperature swings creates wear patterns that simply do not show up in milder climates. Spring tension calculations, lubricant selection, weatherseal lifespan, and panel paint durability are all different here. A Denver garage door technician who has worked the Front Range for years brings specialized knowledge that a generic national-chain dispatch system cannot match.
That is why local matters in this trade. We have spent years figuring out which spring brands hold up best in our climate, which opener models survive the cold-thickened lubricant problem, which weatherseal compounds resist UV punishment, and which insurance carriers handle hail claims fastest. That accumulated local knowledge is the actual product we sell — the parts and labor are commodity. The expertise is not.
A residential garage door is the largest moving part on most homes — bigger than any window, door, or appliance. With proper care, it should last 25 to 30+ years. Without care, it can become a weekly headache by year 8. A few basic maintenance habits make the difference:
Once per year, hit the rollers, hinges, and torsion spring with a spray-on garage door lubricant (NOT WD-40 — that is a degreaser, not a lubricant). Quality silicone-based or synthetic spray-on lube costs $8 at any hardware store. This single 5-minute habit doubles roller life, prevents the squealing operation that drives Denver homeowners crazy, and reduces opener motor strain.
Once a month while you are walking out to the car, spend two minutes looking at: spring coils (any visible gaps or breaks?), cables (any frayed strands?), rollers (any flat spots or chipped plastic?), tracks (any visible bends or loose mounting bolts?), bottom seal (any cracks or daylight visible?). Spotting a small problem at month 4 is a $120 fix. Letting it cascade until month 10 is a $400 fix. The math always favors early intervention.
Place a roll of paper towels or a 2x4 flat on the floor under the closing door. The door should hit the obstruction and reverse to fully open. If it does not, the safety sensors or force settings are out of spec — call us. This safety mechanism is required by federal law on all openers manufactured after 1993, but it can drift out of calibration over time. A non-reversing door can crush a kid's bike, a pet, or worse.
Newer Colorado homes (built or with permitted opener replacements after certain date thresholds) require battery backup on garage door openers. The intent: if the power goes out during a snowstorm, you can still get out of the garage. If your opener is older than 5 years, it likely does not have a battery backup. Adding one is typically $89 to $149 and can be done at any service visit.
Once a year (ideally late September or early October before cold weather), have a technician do a full inspection: spring balance test, cable inspection, roller wear measurement, hinge tightness, opener force calibration, sensor alignment, and full lubrication. Cost in the Denver metro: $89 to $129. Catches problems before they become emergencies. Pays for itself many times over.
OnPoint Pro Doors is a Colorado-registered, locally-staffed garage door repair, installation, and hail damage company serving the entire Denver metro and the broader Front Range. We are not a national chain with a Denver phone number. We are not a lead-routing service. We are a local operation with local trucks, local techs, and local accountability. Every job carries a written 1-year labor warranty, manufacturer parts warranties, and a no-surprise pricing guarantee.
Call (303) 732-8236 for same-day service across the Denver metro — Aurora, Lakewood, Boulder, Centennial, Highlands Ranch, Parker, Castle Rock, Westminster, Thornton, Arvada, Wheat Ridge, Englewood, Littleton, Brighton, Broomfield, Commerce City, Northglenn, Greeley, Loveland, Fort Collins, Longmont, and the surrounding 60-mile radius from Denver.
