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.
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AfterGate Repair in San Mateo, CA
Gate access control repair in San Mateo typically costs $340-$780 for keypad or intercom fixes and $480-$1,200 for full video entry system replacement, with most residential jobs completed in one visit. The salt-laden marine fog rolling off San Francisco Bay accelerates corrosion on outdoor control hardware, and many Baywood homes still run 1980s-era phone entry systems that are now failing. We dispatch background-checked technicians from our Bay Area office to San Mateo daily. Call (510) 879-5471 for a free estimate, and we’ll deliver a written price before any work starts.
Why San Mateo Homes Are Different
San Mateo’s post-war housing stock, built dense from the 1940s through the 1960s, still carries original wrought iron gates and fence panels now 60-80 years old. The marine layer blankets eastern neighborhoods most mornings with salt-heavy moisture that oxidizes ferrous hinges, latches, and frame welds faster than technicians see in drier inland Peninsula cities. Winter rains from November through April pool at gate post bases, rotting wood posts and attacking buried steel anchor hardware at the footing level.
In Shoreview, we regularly find gate posts that have corroded from the ground up. Salt-saturated soil and pooled rainwater destroy buried steel post bases and concrete anchor hardware long before the visible ironwork shows wear. The failure is underground and often misdiagnosed as a hinge or operator problem until the post itself shifts. San Mateo also directly borders Hillsborough, so the local market skews toward high-end automated estate gates with ornate ironwork, requiring repairs that combine operator expertise with decorative metalwork skill.
Our Main San Mateo Services
San Mateo homeowners call us most often for these three services:
Gate Repair in San Mateo
We repair swing gates, slide gates, and pedestrian gates throughout San Mateo’s older neighborhoods, where decades of bay fog have seized hinges and distorted frames. Every repair includes a written price before work begins and a photographed record of what we found and fixed. Gate Repair in San Mateo
Gate Installation in San Mateo
New gate installation in San Mateo accounts for local soil conditions, slope, and the corrosion risk from marine air. We measure, quote in writing, and schedule - no same-day installation, but a precise measure and a fixed price you can compare. Gate Installation in San Mateo
Gate Motor & Opener in San Mateo
Gate motor and opener service covers actuator replacement, control board repair, and limit-switch calibration on brands from LiftMaster to FAAC. We service what you have rather than steering you toward replacement. Gate Motor & Opener in San Mateo
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
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AfterGate Access Control in San Mateo
San Mateo’s mix of 1960s ranch homes with original keypads and 1990s Baywood estates with integrated phone entry systems creates a wide range of access control failures. The salt fog corrodes outdoor keypad contacts and fogs camera housings, while aging underground wiring in Shoreview and eastern flatlands suffers from moisture intrusion at junction boxes. Gate Access Control work here requires diagnosing both the visible device and the buried low-voltage path back to the house.
Keypad Entry
Signs you need it
Buttons stick or fail to register, the housing is cracked or corroded, or the gate stops responding to code entry entirely.
What it costs in San Mateo
Keypad replacement runs $340-$620; upgrading to a weather-rated marine-grade unit adds $80-$150.
How we do it
We test voltage at the keypad, photograph the wiring configuration, install the new unit, and program your codes before leaving.
Video Intercom
Signs you need it
Image is snowy or black, audio cuts out, the call button doesn’t ring inside, or the camera housing has internal condensation.
What it costs in San Mateo
Video intercom repair ranges $480-$780; full system replacement with new cable pull is $890-$1,200.
How we do it
We test signal strength at the gate and the indoor station, replace the camera or station as needed, and verify night vision and two-way audio.
What Gate Access Control Costs in San Mateo
| Item | Typical range in San Mateo |
|---|---|
| Keypad entry repair | $180-$340 |
| Keypad replacement (standard) | $340-$620 |
| Video intercom repair | $480-$780 |
| Video intercom replacement | $890-$1,200 |
| Phone entry system repair | $420-$680 |
| Card reader replacement | $380-$650 |
How long does access control repair take in San Mateo?
Most keypad and intercom repairs are completed in 1-2 hours. Full video system replacement with new cable pull takes 3-4 hours. We bring common keypad and intercom models on every truck. Call (510) 879-5471 for an exact quote - estimates are free.
Can you fix my old phone entry system in Baywood?
Yes. We repair 1980s and 1990s phone entry systems when parts are available, and we document the wiring before any work so future technicians have a reference. If replacement is more practical, we quote both options in writing.
Gate Parts & Welding in San Mateo
San Mateo’s decades of salt fog and the 60-80 year age of much original wrought iron mean parts and welding work here is often restorative, not just replacement. In Shoreview, we regularly discover post bases rotted underground while the visible gate still looks intact. Gate Parts & Welding work requires cutting out corroded steel, welding in new material, and often rebuilding footings that failed from the bottom up.
Post Replacement
Signs you need it
The gate drags, the frame is visibly out of square, or the post moves when you push the gate - especially common in Shoreview and bay-adjacent lots.
What it costs in San Mateo
Single post replacement runs $680-$1,200; double-post rebuild with new concrete footing is $1,400-$2,200.
How we do it
We excavate to inspect the base, cut out the corroded post, pour new concrete with embedded anchor bolts, and weld or bolt the gate frame to the new post.
Hinge Replacement
Signs you need it
The gate squeals, binds, or sags; the hinge pin is visibly worn or the bracket is cracked; or the gate no longer self-closes.
What it costs in San Mateo
Hinge replacement is $240-$480 for standard residential; heavy-duty or ornate wrought-iron matching runs $520-$780.
How we do it
We support the gate, remove the failed hinge, weld or bolt in the replacement, grease the pin, and check swing geometry.
What Gate Parts & Welding Costs in San Mateo
| Item | Typical range in San Mateo |
|---|---|
| Hinge replacement (standard) | $240-$480 |
| Hinge replacement (heavy-duty/ornate) | $520-$780 |
| Single post replacement | $680-$1,200 |
| Double-post rebuild with footing | $1,400-$2,200 |
| Rail repair (weld and grind) | $180-$420 |
| Custom welding (per hour) | $140-$220 |
Can you match my 1960s wrought iron gate design?
Yes. We photograph the existing pattern, fabricate matching elements, and weld them in place. Under the Haven Standard, you receive photos of the finished welds and a record of the material grade used.
Why does my Shoreview gate post keep failing?
Bay-adjacent soil stays salt-saturated year-round, corroding buried steel from the ground up. We replace with galvanized or stainless posts set on concrete piers above the corrosion zone, and we document the footing depth and material for your records.
Brands We Service in San Mateo
We service and stock parts for nine automation brands: LiftMaster, FAAC, BFT, Linear, Viking, Ghost Controls, DoorKing, Elite, and Mighty Mule. Our San Mateo crews carry FAAC, BFT, and Linear control boards and actuator components on every truck, so most brand-specific repairs don’t wait for a parts run. our brands
Pricing for Gate Repair in San Mateo, CA
| Service | Typical range in San Mateo |
|---|---|
| Keypad entry repair | $180-$340 |
| Keypad replacement (standard) | $340-$620 |
| Video intercom repair | $480-$780 |
| Video intercom replacement | $890-$1,200 |
| Phone entry system repair | $420-$680 |
| Card reader replacement | $380-$650 |
| Hinge replacement (standard) | $240-$480 |
| Hinge replacement (heavy-duty/ornate) | $520-$780 |
| Single post replacement | $680-$1,200 |
| Double-post rebuild with footing | $1,400-$2,200 |
| Rail repair (weld and grind) | $180-$420 |
| Custom welding (per hour) | $140-$220 |
Prices in San Mateo run higher than inland Peninsula markets when buried hardware has corroded and excavation is required, or when ornate wrought-iron matching demands custom fabrication. Every price is written and agreed before work starts - Haven Standard Clause 1 - so the invoice matches the quote.
Neighborhoods We Serve in San Mateo
We dispatch to all San Mateo neighborhoods from our Bay Area office, with same-day availability for most access control and welding emergencies.
- Baywood
- Shoreview
- Hayward Park
- San Mateo Park
- Aragon
Service Area - Cities Near San Mateo
Our crews work throughout the mid-Peninsula and East Bay. We regularly take calls from Burlingame, CA to the south, San Leandro, CA and Alameda, CA across the Bay Bridge corridor, and Oakland, CA to the north. Scheduling is coordinated from our Bay Area office; technicians are dispatched to each city locally.
Serving San Mateo, CA - Our Local Coverage Area
We’re based in the San Mateo 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 Repair in San Mateo
Most days we dispatch same-day for access control and welding emergencies. A live person answers (510) 879-5471 24 hours a day - no voicemail, no callback queue. We provide the technician’s name and photo before arrival.
Most San Mateo HOAs require approval for aesthetic changes like new wrought-iron design or color, but simple repair and welding to existing gates typically does not. We document the pre-repair condition with photos, which most HOAs accept as proof of like-for-like work.
We price in writing before any work starts, leave a photographed record of every adjustment, and back all work with the 365-Day Done Right Promise. Our technicians are background-checked and uniformed, with license numbers provided on request.
What happens when you call
- 1A real person answersNo phone trees - talk to a local gate repair pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What San Mateo Customers Say
"Honest about what did not need doing. Told me the operator had years left and only the control board needed replacing."
- Douglas N."Our gate was hit by a delivery truck. They came out, documented the damage properly for the insurer, and the claim went through without an argument."
- Camille R."The safety loop had never been installed correctly by the previous company. They showed me the reading, fixed it, and did not charge me for the diagnosis."
- Patrick H.