Free on-site gate assessment - hinges, posts, and your LiftMaster or Nice gate operator checked before anything is quoted
The assessment is free and the quote is the invoice.
Fast, Reliable Electric Gate Repair Across San Francisco
An electric gate in San Francisco that won’t open, won’t close, or cycles on its own is more than a nuisance. It’s a security gap, a parking headache, and on a hillside lot, a legitimate safety concern. Calder Gate Repair fixes electric gates across San Francisco, from the Sunset to Bayview, and we do it with written pricing before any bolt gets turned. Most gate opener repairs in San Francisco run $225 to $475, and our techs reach most neighborhoods in 90 minutes or less. Call (903) 417-0793 and a live person will pick up, day or night.

The fog that defines this city does a number on gate electronics. Salt air off the Pacific eats exposed control boards, limit switches, and keypad contacts faster than anything we see in Oakland or Daly City. That’s why every Calder tech in San Francisco carries sealed enclosures and dielectric grease as standard kit, not as an upsell. You bought a gate that should last. Let’s make it actually do that. Here is what you need to know about getting it fixed right, in a city where “right” means accounting for fog, slope, and old wiring.
Key Takeaways:
- Most electric gate repairs in San Francisco cost $225 to $475, with full motor replacements $850 to $2,800.
- We’re on-site in San Francisco within 90 minutes for emergency calls, 24/7.
- Fog-driven corrosion and hillside hinge loads are the two biggest failure causes we see here.
- Every repair comes with a written price, a 365-Day Done Right Promise, and a free second visit if it fails.
- Call (903) 417-0793. A live person answers. Always.
Why Calder Gate Repair Is San Francisco’s Preferred Electric Gate Repair Company
Calder Gate Repair is the dedicated gate repair specialist inside the Relay Home Co. family, established in 2009. Each location is independently owned and operated, and the San Francisco Bay Area office runs on one very simple rule: you get a written price before any work begins, a live arrival time you can track, and a 365-Day Done Right Promise in writing on every single job. The invoice you get at the end matches the number you agreed to at the door. Never a surprise.
San Francisco homeowners call us because we understand what this city does to gate equipment. Fog-belt corrosion, hillside hinge posts tilting out of their footings, underground loop detector wires chewed by raccoons in dense backyards. These are the calls we run every week in Glen Park, Noe Valley, the Richmond, and over in Portola. Our techs are background-checked, in uniform, and factory-familiar with nine major opener brands. When a LiftMaster board fries from salt exposure on a west-facing driveway off Geary, we know what we’re looking at before we unbolt the cover. That’s why we show up with the right parts the first time.
Every Calder technician is dispatched through The Relay Standard: a live, trackable arrival window sent to your phone. No “sometime between 8 and noon.” You’ll see exactly when we’re pulling up. We take before-and-after photos, we walk you through the safety test before we leave, and you get a digital invoice you can pay from a link. Trust is built on documentation, not promises. Our San Francisco customers keep the paperwork because it proves the work was done correctly.
Electric Gate Motor in San Francisco
Electric gate motor repair in San Francisco is what we do most, and the reasons are specific to this city: fog corrosion on west-side properties, the torque load from swing gates on sloped lots, and wiring that was run decades ago without sealed conduit. Most gate opener motor repairs in San Francisco run $225 to $475, with full motor replacements running $850 to $2,800 depending on brand and load capacity. We diagnose the motor, the limit switch, and the control board before recommending a fix, and you’ll have a written number before any work starts.
What a Real Motor Repair Includes
A proper motor repair means more than replacing the board. It means cleaning and re-seating the limit switch, checking the load against the motor’s rated capacity, inspecting the harness for corrosion or heat damage, and then running a full cycle test. On a San Francisco hillside, we also check the hinge post and the gate’s sag. A motor set up on a sagging leaf to fail again in months. That’s why our repair report includes notes on the whole system, not just the part that failed.
When to Repair vs. Replace
If your motor hums but won’t move the gate, that’s usually the capacitor or the drive belt. $180 to $320 and an hour to fix. If the motor is 12-plus years old and the board is original, a replacement often makes more financial sense. We’ll show you both numbers and explain which path gets you the most years per dollar. You decide, with a written quote for each option.
Gate Access Control in San Francisco
Gate access control in San Francisco comes up constantly with multi-unit buildings, shared driveways, and HOA-managed properties where more than one household needs reliable entry. A full access control installation, meaning a new keypad, intercom, or GSM-based phone entry system wired into the operator, typically runs $800 to $1,700 in San Francisco. Repairing an existing keypad or re-programming entry codes is simpler work, usually $150 to $330. Either way, the price is in writing before we touch a wire.
Multi-Tenant and HOA Access Needs
San Francisco’s housing density means we regularly set up gate access control for buildings with three or more units. We program unique entry codes for each unit, set time restrictions where needed, and leave you a written code log so a departing tenant can’t keep reusing a code. For HOA-governed properties, we provide a documented service record and a written summary of what was installed and tested. That paperwork makes board approvals and future maintenance conversations a lot easier.

Integration With Existing Openers
Most San Francisco homes already have an opener, and the access control can usually be retrofit. We’re factory-familiar with LiftMaster, FAAC, BFT, and Linear, among others, and we know what each board’s accessory ports support. We’ll wire the new keypad or phone entry into the existing operator, test the relay logic, and run a full open-close cycle with each credential. No bloat, no unnecessary replacement.
Trusted Brands We Service in San Francisco
We service, repair, and install across nine major gate opener brands, and the ones we see most in San Francisco are LiftMaster, FAAC, and Linear, especially on the west side where older systems are doing battle with fog salt. Our local parts inventory in the Bay Area covers common FAAC and BFT limit switch assemblies, Linear control boards, and LiftMaster drive belts. That means shorter turnaround on common repairs. When a part is uncommon, we source it direct and keep you updated. You won’t be left calling us for status. We text you when it lands.
Common Electric Gate Repair Problems We See in San Francisco Homes
- Fog-belt corrosion: West-side properties in the Sunset, Richmond, and Parkside absorb Pacific salt air daily. Exposed control boards, limit switches, and keypad contacts corrode and short out. We seal enclosures and use dielectric grease on every connection we touch.
- Hillside hinge-post rot and footing failure: Constant lateral load on a swing gate in steep neighborhoods torques the hinge post out of its concrete footing over time. Replacing or welding the panel alone solves nothing. We inspect the post, the footing, and the gate’s total weight before recommending a fix.
- Chewed or buried loop detector wiring: Raccoons and gophers live dense in the backyard corridors of neighborhoods like Noe Valley and Glen Park. When the inductive loop wire is severed, a slide gate gets stuck open or cycles erratically. We excavate, re-splice the loop in sealed conduit, and verify the detection field.
- Dead keypads from water intrusion: San Francisco’s winter rains, especially on west-facing gates, get past worn keypad seals and fry the contacts. We replace the gaskets and weather-seal the housing when we install the new keypad, not strictly as an upsell.
Pricing for Electric Gate Repair in San Francisco, CA
| Service | Typical Range in San Francisco |
|---|---|
| Diagnostic visit | $75 to $125 |
| Keypad replacement | $150 to $330 |
| Limit switch replacement | $180 to $340 |
| Control board repair | $225 to $475 |
| Motor replacement (parts + labor) | $850 to $2,800 |
| Full access control installation | $800 to $1,700 |
These are real numbers from the work we do in San Francisco, not bait pricing. What moves the total is parts, brand, and whether the gate needs structural attention in addition to electronics. A LiftMaster board on a flat parcel in the Mission will be on the lower end. A hillside gate with a compromised hinge post in Twin Peaks will be more. You’ll always get a written quote first, and the number we quote is the number you pay. The 365-Day Done Right Promise also covers every repair in writing. If the fix fails within 365 days, Calder returns at no charge. That’s a free second visit, no questions asked.
One more thing we’re honest about: beware of any company promising same-day installation in San Francisco. A real gate installation means groundworks, power run, safety edges, and reversal testing. That’s measured, ordered, and scheduled. We promise a free measure and a written price. If a company says they can install it today, they’re cutting corners or upselling you on a bracket kit that won’t last a year in fog or slope conditions.
We Also Serve Cities Near San Francisco
Our San Francisco Bay Area office dispatches local crews across the peninsula and the North Bay. If you’re in San Francisco, you’ll get our fastest response. We also serve Daly City, Brisbane, Sausalito, and South San Francisco with the same written pricing, live arrival windows, and 365-Day Done Right Promise. Same crew standards, same guarantee, just a bit further up 280 or over the 101.
Serving San Francisco, CA - Our Local Coverage Area
We’re based in the San Francisco area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Electric Gate Repair in San Francisco
Yes. Every electric gate system is required to meet UL 325 entrapment protection standards, and after any repair we run a full safety test to verify the obstruction reversal and photocell sensors actually trip. We’ll walk you through what we’re testing before we leave, and your invoice documents that the safety system was verified. If your gate system was installed years ago and has never been tested against current UL 325 standards, call (903) 417-0793 and we’ll set up a safety inspection.
Salt air off the Pacific is the number one killer. Fog carries ionized salt that coats exposed control boards and limit switches, causing corrosion and short circuits. The fix is a sealed enclosure, dielectric grease on all exposed contacts, and an annual board inspection. On west-side properties in the Richmond and Sunset, we recommend sealed NEMA enclosures on any board we touch, not just the operator’s internal board. Call (903) 417-0793 for an exact diagnosis and a written corrosion-prevention quote.
Sometimes, but not on the slopes. A sagging swing gate that’s pulled away from the hinge post usually means the post itself has shifted in the footing, which is very common in hillside neighborhoods like Noe Valley and Bernal Heights. Re-hanging the panel without addressing the post will buy you a few months at most. We’ll inspect the post and footing, and you’ll get a written quote for the correct fix. Call (903) 417-0793 for an exact assessment.
We install and program access control systems with unique entry codes for each unit, time restrictions where needed, and a documented code log. For HOA properties, we provide a written service record and a summary of what was installed, tested, and what each code controls. When a tenant moves out, we can deactivate that code and re-issue on request. Call (903) 417-0793 for a written access control quote specific to your building.
Yes. Solar gate openers are increasingly common across San Francisco’s sunny south-facing lots, and we regularly service the solar panels, charge controllers, and battery banks that run them. Rack-and-pinion slide gates, the most common type for wider driveways, are also in our wheelhouse. We diagnose rack alignment, drive pinion wear, and motor load. Call (903) 417-0793 for a service visit or a written quote.
Written by Nico Alvarez, Owner at Calder Gate Repair, serving San Francisco since 2009.





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