Houzz
ProvenExpert
Tripadvisor
Hotfrog
Bark
Manta★★★★☆
"Spring was done properly and the door works fine. He did leave the old spring and some hardware round the side of the house and I had to ask about hauling it off. They came back for it, just took a couple of days."
90-Day Done Right PromiseLearn More
Local crews, one national standard
Nationwide Garage Door Repair
Nationwide Garage Door Repair
& Installation.
Fixed Fast, Priced Up Front.
A door that will not open is fixed the same day. A new one is measured and priced in writing before anything is ordered. Licensed, insured, background-checked crews in every town we serve.
Call to schedule your free estimate
500+ Happy Customers
4.8/5 Rating
Free Estimate on SiteCalls Answered by a Live Person, 24/7Background-Checked TechniciansProudly serving local communities 10+ years
What we do
Expert Garage Door Repair and Installation Services
Every job on this list is handled by trained, background-checked technicians working to one national standard, priced upfront from a free estimate.
Garage Door Repair
Broken springs, snapped cables, off-track doors and openers that quit. Same-day repair on the parts that fail most.
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Free Garage Door Estimates
We price the job, not the hour. A technician diagnoses the door and quotes the full repair before any work starts.
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Garage Door Installation
Insulated steel, carriage house and full-view doors, measured, installed and balanced in a single visit.
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Garage Door Opener Repair
Openers that hum but will not lift, stripped gears and dead boards repaired, or replaced with quiet belt drive and smart openers with battery backup.
Learn More →Why us
Why Choose Mainspring?
The same four answers in every market we serve.
One Standard, Every Location
Every Mainspring team works to the same written standard, the same pricing practice, and the same checklist. The town changes; the job does not.
You Approve the Price First
A free estimate, itemized and in writing, before a tool comes out of the truck. No hourly meter, no discovering the real number at the end.
Licensed, Insured, Background-Checked
Uniformed technicians, licensed for the work in their own state, insured, and background-checked before they ever knock on a door.
Backed by a 90-Day Written Promise
If the work is not right, we come back and make it right. That is the whole promise, and it is on paper, not just on the website.
Our code: K.E.Y.S.
The Mainspring Way
The standard every Mainspring team is held to, on every job, in every town.
Krafted right
trained journeymen, proper materials, no shortcuts
Every time
the 400th job gets the care of the first
Your home first
we work in your house the way we'd work in our mother's
Standing behind it
if it's not right, we come back; no paperwork, no arguing
Our Promise, In Writing
The Keystone Standard delivered by Mainspring, a proud Keystone company.
90-Day Written Promise“The Keystone Standard, applied to garage doors: 90 days, in writing, no arguing.”
Read the full promise →
Parts we install
Premium, Long-Lasting Garage Door Parts
The part decides how long the repair lasts. Here is what we fit, and what the cheap version costs you later.
Torsion Springs
The torsion spring above the door carries almost all of its weight. It decides whether the door lifts smoothly for years or fails on the coldest morning of the winter.
What we install
We install high-cycle powder-coated torsion springs rated for tens of thousands of open and close cycles. The coating keeps moisture off the steel, so the spring holds its tension instead of rusting from the inside out.
What other companies fit
Budget shops fit the cheapest uncoated builder-grade spring that fits the shaft. Bare steel starts surface rusting within a season, the coils bind against each other, and the spring snaps years earlier than it should.
Extension Springs
Lighter and older doors run on extension springs mounted along both horizontal tracks. They stretch on every single cycle, so build quality shows up fast.
What we install
We use double-hoop end extension springs built for roughly thirty thousand cycles, with a safety containment cable run through the center of every spring.
What other companies fit
The common budget part is a single loop-end spring with no containment cable. The loop is the weak point, and when it lets go the spring can whip across the garage.
Lift Cables
Lift cables tie the bottom of the door to the drums at the top. A frayed cable is the usual reason a door goes crooked and jams in the opening.
What we install
We fit galvanized aircraft-grade lift cables sized to the actual weight of the door, with clean swaged ends that seat properly in the drum groove.
What other companies fit
Cheap cables use thinner strand counts and light plating. They stretch, birdcage at the drum, and start shedding wire strands long before the door itself is worn out.
Cable Drums
The drums sit at each end of the torsion shaft and wind the cables as the door rises. Their machining is what keeps both sides of the door level.
What we install
We install cast aluminum drums machined for the specific door height, so the cable tracks in a clean groove and both sides lift at exactly the same rate.
What other companies fit
Budget stamped drums have rough grooves and set screws that back out. The cable jumps its groove, one side lags behind the other, and the door racks in the opening.
Rollers
Rollers are the small wheels that carry the door through the track. They are the single biggest reason one garage door is quiet and another one shakes the whole house.
What we install
We install sealed nylon rollers on long stems with shielded ball bearings. Nylon runs quiet against the steel track and the seal keeps grit out of the bearing.
What other companies fit
Builder-grade doors ship with open steel rollers on short stems. The exposed bearings pack with dust, the wheels flat-spot, and the door grinds on every cycle.
Our story
Doing It This Way Since 2016.
Mainspring techs arrive with the springs, cables, and openers on the truck to finish in one visit, quote the flat price before the wrench comes out, and tune every door they touch to run quiet. The brand feels like a well-oiled machine shop: precise, unhurried, guaranteed.
Named for the spring that powers a watch - and the springs that carry your door's entire weight.
Current Offers
Bring these savings to your next appointment.
10%
10% Off Your First Service Visit
Valid on your first completed service visit with us.
Expires Dec 31, 2026
$50
$50 Off Any Repair Over $250
Expires Dec 31, 2026
$89
$89 Seasonal Tune-Up (any trade)
Expires Dec 31, 2026
5%
Senior & Veteran 5% - Always
Expires Dec 31, 2026
What Our Customers Say
Homeowners in every market we serve, in their own words.
★★★★☆
"Work is solid and it has held up. Getting hold of the office in the middle of the day took a couple of tries. Once I had someone on the phone it was easy."
★★★★★
"Logic board on a fifteen year old opener. He was straight with me that a new opener would cost less than the board plus the labor, and he was right. No pressure either way."
★★★★★
"We manage a handful of rentals and the tenants deal with them directly now. Not one complaint in two years, which says more than anything I could write."
★★★★★
"Bent track and two shot rollers. He straightened what he could, swapped the rollers for nylon ones, greased everything and was gone inside an hour."
★★★★★
"Old chain drive sounded like a freight train through the bedroom above the garage. Went with the belt drive he recommended and I genuinely cannot hear it from upstairs now."
★★★★★
"Keypad died and I assumed that meant a whole new system. It was the batteries and a reprogram. He charged me the minimum service call and showed me how to do it myself next time."
★★★★★
"Both cables had come off the drum and the door was hanging at an angle. I had watched a video and was about ten minutes from trying it myself, which he told me would have been a genuinely bad idea."
★★★★☆
"Good repair at a fair price. The door still has a slight shudder about a foot from the top, which he said is the frame being out of true on an old build and would cost real money to fix properly. Fair enough, but I had hoped for perfect."
★★★★★
"Quoted on the phone, charged that, left. I keep waiting for the catch and there has not been one in three years of using them."
★★★★★
"New door in about four hours, hauled the old one away, and he stayed to program both cars and the wall panel before he left."
★★★★★
"Replaced the bottom panel after I backed into it. The color match is close enough that you have to know to look for it."
★★★★★
"The opener kept reversing about a foot from the floor. Turned out the safety sensors had been knocked crooked by a bike. He straightened them, would not take money for it, and told me to call when something real goes wrong."
★★★★★
"Second house I have used them at. Different crew, different state, same standard. That is the whole reason I called them again instead of shopping around."
★★★★☆
"Opener works, remotes are programmed, no complaints on the work itself. It took three days to get on the schedule though, so if you have got a car trapped inside, say so when you call."
★★★★★
"Torsion spring let go at six in the morning with both cars sealed in. Somebody was here before nine with the right spring already on the truck. The door is quieter now than it was before it broke."
Frequently Asked Questions
Everything you need to know about our garage door services.
Enter your ZIP code in the form at the top of this page, or browse the map. Every pin is a community we serve, and your request goes to the team that covers that area.
Yes. Every technician working under our name is licensed for garage door work in their state, insured, background-checked, and uniformed.
Always. You get an upfront, itemized price and you approve it before anything begins. No hourly surprises, and no discovering the real cost at the end.
Same-day and after-hours appointments are available across our network. Your local team confirms the arrival window when you book.
Yes, in writing. Parts and labor are covered, and if a job isn't right we come back and make it right.
Each location is independently owned and operated, and every one of them is held to the same standard, the same pricing practice, and the same written promise.
Tips & Resources
Garage Door guides, maintenance tips, and straight answers from our experts.
Sep 6, 2026
Garage Door Parts: Repair or Replace? How Los Angeles Homeowners Decide
Garage Door Parts: Repair or Replace? How Los Angeles Homeowners Decide Most garage door parts in Los Angeles should be replaced rather...
Read More →Sep 3, 2026
Chamberlain Garage Door Repair in Los Angeles: A Homeowner’s Guide
Chamberlain Garage Door Repair in Los Angeles: A Homeowner’s Guide Chamberlain garage door opener repair in Los Angeles typically costs $180-$340 for...
Read More →Aug 31, 2026
5 Mistakes to Avoid With Garage Door Opener
5 Mistakes to Avoid With Garage Door Opener The most expensive garage door opener mistakes happen before installation day. Choosing the wrong...
Read More →Join our team
Good Work Deserves a Good Place to Do It.
We are hiring technicians, apprentices, and office staff across the country. Real training, real tools, and a company that backs you the same way it backs the customer. If you take pride in doing the job right the first time, you will fit in here.
View All Open PositionsOwn a franchise
Own a Mainspring Franchise.
Protected territories, real training, national brand backing, and systems that are already working in towns like yours. Territories are open now.
Areas We Serve