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 Gate Opener Repair Across South San Francisco
Most gate opener repairs in South San Francisco run $180 to $390 before parts, and we can usually have a technician at your door the same day you call. Calder Gate Repair handles everything from dead circuit boards to stripped rack-and-pinion gears, and we work on the brands homeowners actually have: LiftMaster, FAAC, BFT, Linear, Viking, Ghost Controls, DoorKing, Elite, and Mighty Mule. Every job starts the same way: a written price before any work begins. If you’re stuck at the driveway or your gate won’t close all the way, call (903) 417-0793 now and a live person answers, any hour, any day.
Why Calder Gate Repair Is South San Francisco’s Preferred Gate Opener Repair Company
South San Francisco gate systems take a beating from two things: hillside soil movement and bay fog. We’ve seen it across the Westborough hillsides, down by El Camino Real, and throughout the older neighborhoods around Orange Memorial Park. Hinge posts shift when winter rains saturate the clay, and fog-season moisture corrodes safety photocell connections and rack-and-pinion drive gears faster than owners expect. Knowing which failure to look for first saves our South San Francisco customers real money: we don’t charge to poke around, we charge to fix the actual problem.
Our technicians are background-checked, uniformed, and dispatched with a live arrival time you can track from your phone, which is exactly how it should work when your gate is stuck and you’re running late for work. Dispatch and scheduling for South San Francisco crews run through the brand’s San Francisco Bay Area office, so your technician is local, not driving from forty miles away. Nico Alvarez leads the team with a simple rule: the number on the invoice matches the number you approved before the first bolt came loose.
Every repair carries the 365-Day Done Right Promise in writing. If the repair fails within 365 days, we return free of charge. That’s not a marketing line; it’s on the invoice. And every call gets a written quote before work starts. You never sign off on surprises.
Gate Intercom in South San Francisco
A gate intercom in South San Francisco is the call box at your driveway or pedestrian gate that lets visitors buzz in, often paired with a phone line, an internet app, or a hardwired monitor inside the house. When a South San Francisco homeowner says the intercom is dead, the cause is almost always the same here: corrosion on the wiring terminals from bay-facing fog, or a failed power supply in a wet enclosure. Older intercoms on pre-1980s homes near the hills often run on buried wiring that’s aged poorly, crackling or buzzing when buttons get pressed.
Replacing Or Upgrading Your Entry Call Box
We replace the call box, the interior handset or app bridge, and any degraded wiring between them. For a clean replacement with a weather-sealed outdoor station and a modern phone-based answer system, South San Francisco homeowners typically spend $400 to $850 total including labor and equipment. We recommend housings with gasketed seals, especially if your driveway faces the fog line off the bay.
Linking Intercoms To Gate Openers
When the intercom is working but the gate won’t release, the fault is usually the relay wire between the intercom control board and the opener’s input terminal. We test that circuit, replace the relay if it’s burned, and re-terminate all low-voltage connections inside the enclosure. Most add-on relay repairs run $120 to $220, and we’ll tell you in writing before starting.
Gate Opener With Keypad in South San Francisco
A gate opener with keypad in South San Francisco means you punch in a code to open the gate instead of carrying a remote. On sloped lots where driveways are steep and narrow, the keypad often gets mounted flush against a stucco wall or a metal fence post, and wiring can rub or get pinched. We install, reprogram, or replace keypads on existing gate opener systems, whether you need a wired keypad at the gate or a wireless one that talks to the opener. Typical keypad installs on an existing operator run $190 to $340, and we always test the code from both outside and inside the property before we leave.
Wired vs. Wireless Keypads
A wired keypad uses a low-voltage run back to the opener’s accessory input, and it gets mounted where you want the code entered. A wireless keypad runs on battery and mounts anywhere with a clear signal path to the operator. In South San Francisco’s damp fog months, we favor hardwired units where practical; wireless units on bay-facing gates can eat batteries and lose signal consistency.
Keypad Reprogramming For Rental Properties
If you bought a home in South San Francisco and the previous owner left a gate opener with keypad but didn’t share the codes, we clear and reset the system. Same visit, we reprogram remotes, set your entry code, and show you how to change it yourself. Reprogramming a single keypad plus testing remotes typically runs $120 to $180.
Trusted Brands We Service in South San Francisco
We’re factory-familiar with nine major gate opener brands, and the ones we see most often across South San Francisco are LiftMaster, FAAC, and Linear, with Viking and Ghost Controls close behind on larger sliding gates. DoorKing show up frequently on apartment and commercial gates near the El Camino corridor, and we stock common boards, limit switches, and safety edges for those units locally, so turnaround is hours, not days. When a part isn’t in the van, we tell you before you commit, with the exact price and the realistic arrival window. No vague “we’ll see what we can find.”
Common Gate Opener Repair Problems We See in South San Francisco Homes
- Hinge post shift on sloped lots. South San Francisco’s hillside homes, especially around the Sign Hill and Westborough areas, sit on clay that moves in winter rain. A shifted post throws the gate operator’s limit settings out of spec, and the safety photocell beam falls out of alignment, so the gate reverses unpredictably or stalls halfway.
- Corroded loop detector wiring and rack-and-pinion gears. Homes in the fog belt near the bay, including neighborhoods off Airport Boulevard near the water, deal with moisture that degrades electrical connections and gear teeth fast. We regularly replace loop detector leads and re-grease or swap rack-and-pinion sets that seized in the salt air.
- Missing or undersized UL 325 entrapment protection. Older South San Francisco properties, especially those built before 1980, often have swing or slide gate operators installed before current safety standards. If your gate reverses weakly or doesn’t reverse at all on obstruction, your safety system is not code-compliant, and that’s a serious entrapment risk.
- Keypad or intercom intermittency in damp conditions. Fog-season humidity works into outdoor enclosures and low-voltage connections, causing keypads that work most days but fail when you’ve got a delivery arriving. We reseal enclosures and re-terminate wet connections to stop the cycle.
Pricing for Gate Opener Repair in South San Francisco, CA
We Also Serve Cities Near South San Francisco
Our service area extends through Brisbane, Daly City, San Bruno, and Millbrae, so if your gate opener is down and you’re just across the city line, we’re still the team to call. If you’re looking for broader coverage, our Gate Opener Repair in South San Francisco page covers the full local service map. You’re welcome to call even if you’re in a neighboring ZIP; we’ll confirm coverage when you do.
Serving South San Francisco, CA - Our Local Coverage Area
We’re based in the South 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 Gate Opener Repair in South San Francisco
My gate opener works but the safety reverse doesn’t – is that normal?
No, it’s not normal, and it’s also not safe. A gate that fails to reverse on obstruction is either missing UL 325 entrapment protection or has a failed safety edge, photocell, or reversal monitoring circuit. On South San Francisco hillside gates, misalignment from hinge post movement is the usual culprit. The system still opens and closes, so homeowners assume it’s fine, but an entrapment hazard is exactly what the safety system exists to prevent. This is a same-day priority repair for us. Call (903) 417-0793 and we’ll get someone out to test and correct the reversal force and photo-eye alignment.
Can you install a keypad entry on my existing South San Francisco gate?
Yes. If you have a functioning opener from LiftMaster, Linear, Ghost Controls, DoorKing, VP, or any of the brands we service, we can add a wired or wireless keypad, program your entry codes, and test it from both sides. Installation on an existing operator typically runs $190 to $340 depending on the wiring run and whether the opener has open accessory terminals. We’ll give you a written price before starting, and you’ll have a working code before the tech leaves.
Why does my gate sag and drag when the opener tries to close it?
A sagging gate in South San Francisco usually means the hinge post has moved, or the hinges themselves are worn, and the opener is fighting the extra drag on the close cycle. On sloped lots, rain-saturated soil lets posts shift just enough to lower the gate leaf, and the bottom edge catches the ground or the track. The opener’s force settings work harder, which burns out boards and gears prematurely. We reset the post, re-level the gate leaf, and re-run the entire cycle test before calling it done. A typical post reset and re-level runs $300 to $600 depending on the footing.
Do you service solar gate openers in South San Francisco?
Yes. Solar gate openers are common on South San Francisco properties where running line voltage to the driveway would mean trenching across a steep hillside. We service the operator, the solar panel, the charge controller, and the battery bank. Misty fog days reduce panel output, especially for panels mounted in shade on the north side of a hillside lot, and we often recommend a panel reposition or a higher-capacity battery. Solar system diagnostics start at around $120, and we quote panel or battery replacement separately before touching anything.
How long does a gate operator repair take?
Most gate opener repairs in South San Francisco take 60 to 90 minutes on site. Board replacements, limit switches, keypads, and intercom relay work usually fall in that window. Post resets, gate re-leveling, or full operator swaps can run 2 to 4 hours depending on access and whether concrete work is involved. We’ll give you a time estimate when you call, and you’ll have a live arrival window that actually tracks, not a four-hour guess.
Ready to get your gate working again? Call Calder Gate Repair at (903) 417-0793 for a free estimate. A live person answers, every time, and the technician who shows up is background-checked, uniformed, and carrying a written quote with your name on it. Same-day service across South San Francisco and the surrounding Peninsula cities.
Written by Nico Alvarez, Owner at Calder Gate Repair, part of the Relay Home Co. family since 2009.





Before
After
Before
After
Before
After