Commercial garage door repair for Coronado's 1970s-era buildings. We travel the 11 miles from San Diego with springs and rollers sized for that stock. Book online.
The buildings we get called to in Coronado mostly went up around 1974, the same window as most of the commercial stock across this part of the county. That means a lot of the doors still running on the original torsion springs, or springs replaced once and never upsized for how many cycles a business door actually sees compared to a house door. When one of those springs lets go on a loading bay or a shop front, the door doesn't ease down, it comes down, and it stays down until someone with the right bar and the right spring rating gets under it.
We run out of San Diego, about 11 miles from Coronado, so we're not sitting on the island waiting for a call. What we can tell you is that we bring parts sized for the era of door you likely have, not a generic kit, because a 1974-built commercial door usually takes different spring wire and drum sizing than anything built after the mid-90s retrofit wave. That planning matters more here than the drive time does.
Stocked Parts
Commercial doors from the 1967-1992 building window share a handful of common failure points: torsion springs undersized for daily cycle counts, galvanized track that's pitted enough to throw rollers, and photo-eye safety sensors bolted on later as a retrofit rather than built in from the start. We carry springs rated for commercial cycle counts, not residential ones, along with the rollers and cable that match that older track profile.
We're straight about the limit here: some panel styles and steel gauges from that build era are out of production, and if a section is cracked or dented beyond a patch, we're looking at a full panel replacement or a new door rather than a quick fix. We'll tell you which one it is before we start, not after.
How to Book
Tell us it's a commercial door and give us the building type when you call or book online. We travel from San Diego to reach Coronado, so the more you can describe up front - spring type, whether it's chain or belt drive, whether it's a rolling steel door or a sectional - the less time we spend diagnosing on site. See our Coronado service area page for coverage details, or the commercial garage door page for San Diego for the full list of commercial work we handle across the region.
Doing It Yourself
A commercial torsion spring holds a lot more stored energy than the kind on a two-car garage, and on a building put up in the early 1970s, that spring has likely done more cycles than anything on a house door nearby. Don't wind it, don't cut it, don't try to eyeball the tension. That's not a caution label, it's the actual reason commercial spring work isn't a homeowner job.
What you can check yourself: whether the photo-eye sensors near the floor track are aligned and clear of dust, whether the track bolts are still snug, and whether the door reverses when something blocks it. If any of those are off, that's worth a call before it becomes a stuck door during business hours.
How it works
From “it’s stuck” to “it’s fixed”
1
Tell us what’s wrong
Describe the symptom - won’t open, loud bang, opener runs but the door won’t move.
2
On-site diagnosis
A technician tests the door under power and by hand and finds what actually failed.
3
Clear, up-front plan
You get the fix that’s needed and what drives the cost - before any work starts.
4
Repaired & tested
The repair is done, the door is set true and tested, and the work area left clean.
Serving San Diego, CA - tell us what your door’s doing and we’ll take it from there.
No. We run out of San Diego, about 11 miles away, and travel to Coronado for commercial calls. We don't have a local depot on the island, so we don't quote a fixed response window here - we can tell you more once we know the job.
Why does a 1970s commercial door need different parts than a newer one?
Buildings in this area mostly date to the 1967-1992 window, median around 1974. Doors from that era often run on original torsion springs and older track profiles, and many didn't get photo-eye safety sensors until a later retrofit. That changes which spring wire, drum size, and sensor kit actually fits.
Is it worth repairing an old commercial door or replacing it?
Depends on the panel and the track. If the steel gauge from that build era is discontinued and a section is bent or cracked, patching it isn't realistic and replacement makes more sense. We'll tell you which situation you're in before starting any work.
Ready to get your garage door sorted?
Tell us what it’s doing and where you are in San Diego - we’ll take it from there.
