Garage Door Services | Generational Garage Doors
Garage door services across Contra Costa and Solano County

Licensed · Insured · Locally Owned

Garage Door Services Done Right the First Time

From a snapped spring at 6 AM to a brand new custom door — we handle everything residential garage door related across Contra Costa and Solano Counties. Same-day service when we can, honest pricing always, and the owner on every job.

8+ YearsLocal Experience
#1113495CA Contractor's License
Same-DayEmergency Repairs
21+ CitiesContra Costa & Solano
FreeWritten Estimates

Looking to Upgrade or Replace Your Door?

Start here. Whether you want a brand new custom door installed or just want to browse what's possible, these are the right places to start.

New garage door installation by Generational Garage Doors
★ Most Requested

New Garage Door Installation

From $1,400 · 1 yr labor / 3 yr parts warranty

Professional installation of CHI and Martin Door garage doors. We pull the old door, hang the new one, set the tracks and springs, hook up your opener, and haul everything away — all in one visit. Most installs done in a single day.

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CHI garage door catalog
Browse the Catalog

See All Available Doors

CHI + Martin Door · Some doors IN STOCK now

Browse our full catalog of garage doors from C.H.I. Overhead Doors and Martin Door — Timeless, Contemporary, Carriage House, Full View, and Pinnacle collections. Click any door for specs, colors, and design details.

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Repairs & Maintenance Services

Door not working right? We handle every residential garage door repair you can think of — same-day when possible, always with a flat-rate written quote before we start.

Broken garage door spring replacement

Broken Spring Replacement

The most common emergency call. A broken spring means your door won't open — and it's not safe to force it. Same-day spring replacement available.

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Crashed garage door repair

Off-Track & Crashed Door Repair

Door off the tracks, crashed door, or stuck door? We can usually get your door back on track same-day so your home stays secure.

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Garage door cable replacement

Cable Replacement

Snapped or frayed cables can drop a door and create real safety risks. Same-day cable replacement available with a 1-year labor / 3-year parts warranty.

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LiftMaster garage door opener

Garage Door Openers

Opener won't open? Remote not working? We diagnose, repair, and install new LiftMaster openers — including modern myQ smart-home compatible models.

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One-piece tilt-up garage door conversion

One-Piece Door Conversion

Got an old one-piece tilt-up door? We replace them with modern, safer overhead doors — better insulation, easier operation, and dramatically improved curb appeal.

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Garage door hardware replacement

Hardware Replacement

Wheels, hinges, rollers, top and bottom fixtures — when the door body is fine but the parts are worn out, we replace just what needs replacing.

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Generational Garage Doors technician

Something Else? Just Ask.

If it's residential and it's a garage door, we handle it. Don't see what you need above? Call us and describe what's going on — we'll tell you straight up if we can help.

(925) 316-8384
Dustin Cantu, owner of Generational Garage Doors

Every Service Call, Handled Personally.

Generational Garage Doors was started because we were tired of watching neighbors get pushed into doors and repairs they didn't need by salespeople they'd never see again.

When you call, you talk to the same person who shows up and stands behind the work — no subcontractors, no franchise scripts, no upsells. Just honest work. That's why we're "The Honest Garage Door Company."

— Dustin CantuOwner · CA Licensed Contractor #1113495

Where We Work

Click your city to learn more about garage door service in your area.

Martinez Concord Pleasant Hill Walnut Creek Lafayette Orinda Moraga Alamo Danville San Ramon Clayton Pittsburg Antioch Brentwood Hercules Pinole Benicia Vallejo American Canyon Fairfield Vacaville

Frequently Asked Questions

Quick answers to what most people want to know before they call.

Do you offer same-day garage door service?
Yes, we offer same-day service for most repairs in Contra Costa and Solano Counties — including broken springs, off-track doors, and snapped cables. Call us as early in the day as possible and we'll do our best to fit you in. We're a small local team (not a 24/7 dispatch service), so same-day timing depends on what's already on the schedule, but we'll be straight with you about it on the phone.
Are estimates really free?
Yes. Every estimate is free and in writing with zero obligation. We'll come measure your door, talk through the options, and give you an honest quote. If we don't think you need the work done, we'll tell you that too.
Are you licensed and insured?
Yes — California Contractor's License #1113495, fully insured. You can verify the license anytime through the California Contractors State License Board (CSLB).
What brands of garage doors do you install?
We're authorized installers for C.H.I. Overhead Doors and Martin Door — two of the highest-quality residential garage door manufacturers in the country. Both come with industry-leading warranties: limited lifetime on most door sections, and Martin's Pinnacle line includes their patented pinch-proof safety joint.
Do you charge a fee just to show up?
No trip fees on estimates for new doors. For service calls (repairs, tune-ups, diagnosing a problem), we charge a small service fee that gets credited toward any work we end up doing. We tell you the fee on the phone before we head out — no surprises.
What does it cost to fix a broken spring?
Spring replacement cost depends on the door's size, weight, and how many springs need to be replaced. We always replace springs in pairs (even if only one is broken) because the second one is right behind it. We'll give you the exact price on the phone before we head out. See our full price list for typical ranges.
What areas do you serve?
All of Contra Costa County and Solano County, including Martinez, Concord, Pleasant Hill, Walnut Creek, Lafayette, Orinda, Moraga, Alamo, Danville, San Ramon, Clayton, Pittsburg, Antioch, Brentwood, Hercules, Pinole, Benicia, Vallejo, American Canyon, Fairfield, and Vacaville. If you're on the edge of our area, just call — we'll let you know if we can make it work.

Door Broken or Just Looking for an Upgrade?

The fastest path is a call or text — five minutes on the phone usually beats an hour of back-and-forth. Real person, real answers, no pressure.

Call or Text (925) 316-8384 Send a Message