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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After
Before
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AfterFast, Reliable Gate Installation Across San Mateo
A new gate installation in San Mateo runs anywhere from $1,800 for a simple pedestrian gate to $9,500+ for an automated sliding driveway gate with access control, and most standard installs land between $3,200 and $6,500. The biggest variable in this city is the salt air, not the gate itself. We’ve been installing gates along the Peninsula since 2001, and the spec we write for a bay-front property off Mariners Island Boulevard is not the same spec we’d write for a house up in the 94402 hills. Call (877) 610-2993 and we’ll talk through what your particular street actually needs.
Key Takeaways
- San Mateo’s bay-front ZIP codes (94403, 94404) see gate hardware fail in 5-7 years. Inland Peninsula cities get 10+ years from the same parts.
- Marine-grade 316 stainless hinges and conformal-coated operator boards are the standard spec for bay-adjacent installs, not an upgrade.
- Western hillside properties in 94402 need slope-calibrated gate operators or you’ll replace the motor early.
- We quote a firm written price before any work starts. No trip charge inside San Mateo County.
- Every install carries the 90-Day Done Right Promise in writing.
Why Gatewood Fence & Gate Is San Mateo’s Preferred Gate Installation Company
Hal Gatewood started this shop in 2001 and his name is still on the invoices. That matters in San Mateo, because when a gate fails here it’s usually a corrosion problem someone else installed five years ago, and Hal is the guy who gets called to fix it properly.
We answer the phone with a live person, not a voicemail. Call at 2 a.m. and someone picks up. Most of our San Mateo customers are homeowners who’ve already been through the national-chain experience, where the phone quote and the door price were two different numbers. We don’t work that way. You get the price in writing before we touch anything, and the price doesn’t move.
Our crews are background-checked and uniformed. When you see a Gatewood truck on El Camino Real or Hillsdale Boulevard, that’s someone who knows the difference between 94404 salt-air pitting and 94402 slope-related motor strain. That local knowledge is why San Mateo homeowners keep our number.
Our Gate Installation Services in San Mateo
Driveway Gate Installation
A driveway gate in San Mateo is a working gate, not decoration. On the bay side, we’re sizing for wind off the water and salt corrosion in the hinge posts. On the hillside, we’re setting posts in grade and calibrating operators so the motor isn’t fighting the slope. Most Gate Installation jobs here take one to two days once we’ve ordered the right hardware, and we handle the full run: posts, gate fabrication, operator, safety edges, and programming.
Pedestrian Gate Installation
San Mateo’s 1940s-1960s ranch homes and bungalows still have a lot of original ornamental wrought-iron side gates. They’re 60 or 70 years old now, and the marine-layer humidity has been working on them the whole time. We build new pedestrian gates that match the period look but use stainless and powder-coated materials that won’t rust out in five years. Typical pedestrian gate installs in San Mateo run $1,800 to $4,200 depending on size and hardware.
Sliding Gate Installation
Sliding gates are the go-to for newer HOA and condo developments in 94403 and 94404, where space is tight and the gate needs to clear a driveway without swinging into the street. On these installs, San Mateo code means UL 325 entrapment protection is not optional, and the rack and pinion alignment has to be dead level or the motor works itself to death. We stock Linear and DoorKing sliding gate operators locally and can usually have parts in hand the same week.
Swing Gate Installation
Swing gates are the most common gate type in San Mateo’s single-family neighborhoods, from Baywood to Aragon. The failure mode we see most often here is a hinge post that starts out fine and five years later is pitted and leaning. We weld on site, we use marine-grade stainless hinges on bay-adjacent properties, and we set posts deep enough that the gate doesn’t sag toward the latch in year three. A steel swing gate install in San Mateo typically runs $3,200 to $6,500.
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.
Trusted Brands We Service in San Mateo
We’re certified to work on nine major gate brands, including Linear, Viking, Ghost Controls, and DoorKing, and we keep common parts in stock for San Mateo customers so you’re not waiting on a two-week order when your motor board dies. On 94404 bay-front installs we default to operators with conformal-coated circuit boards because the uncoated boards corrode from marine humidity before the mechanical parts ever wear out. If you have an existing operator from another brand, we’ll tell you straight whether it’s worth saving or replacing.
Common Gate Installation Problems We See in San Mateo Homes
- Salt-air pitting on ferrous hinge posts and welds. In 94403 and 94404, a standard painted steel post can show rust bloom within two years of install. We swap in 316 stainless or full galvanized posts at the initial install so you aren’t rebuilding in five years.
- Corroded operator circuit boards from persistent marine-layer humidity. San Mateo’s humidity is year-round, not seasonal, and uncoated control boards lose traces and solder joints long before the motor itself wears. Conformal coating is the standard fix.
- Motor overload on hillside lots in western 94402. Gates on steep grades the motor has to work against slope stress, and if the installer didn’t calibrate for it, the gears strip early. We set slope compensation from day one.
- Premature hinge failure on older wrought-iron gates. Sixty-year-old ornamental gates on San Mateo ranch homes often look fine from the street and are paper-thin at the hinge barrel from decades of moisture cycling. We replace with stainless materials that match the original look but actually last.
Pricing for Gate Installation in San Mateo, CA
Here’s the honest range for Gate Installation in San Mateo, based on what we’ve actually quoted on streets you live on:
| Install Type | Typical San Mateo Range |
|---|---|
| Pedestrian gate (steel, standard width) | $1,800-$4,200 |
| Single swing driveway gate | $3,200-$6,500 |
| Sliding driveway gate with operator | $5,500-$9,500 |
| Security gate with access control | $6,000-$12,000 |
What moves the number: bay-front properties in 94403 and 94404 should use stainless hardware and coated boards, which adds material cost but saves you a rebuild in year six. Hillside lots in 94402 need slope-calibrated operators. A standard inland ranch home in the middle of San Mateo is the most straightforward install. We give a free written estimate and the price is locked before work starts. Call (877) 610-2993 and we’ll come measure.
We Also Serve Cities Near San Mateo
If you’re reading this from a neighboring city, you’re still in our area. We install and repair gates regularly in Foster City, Belmont, Hillsborough, and Redwood Shores, which means a crew Gate Installation in San Mateo scheduled for is never far from your street either. The same pricing, the same promise, the same live answer when you call.
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 - Gate Installation in San Mateo
Because 94404 sits directly on the bay shoreline, and the air carries salt particulate that settles on ferrous metals and accelerates oxidation. A powder-coated steel hinge that lasts 15 years in Palo Alto will show pitting and rust bloom in San Mateo within five to seven years. We install marine-grade 316 stainless hinges on bay-adjacent San Mateo properties by default, because the alternative is rebuilding the same hinge in under a decade. Call (877) 610-2993 for a free estimate on a stainless-spec install.
For hinge hardware and fasteners on a Mariners Island or lagoon-side install, use 316 stainless. Hot-dip galvanized steel is better than painted but not enough for constant salt exposure. We installed a swing gate off Mariners Island Boulevard in 94404, and the original powder-coated steel hinge post showed rust bloom within two years. Our crew replaced the footing with a 30-inch concrete pour, swapped in 316 stainless hinges, and specified a conformal-coated operator. That’s now our default spec for every bay-adjacent install in San Mateo. Call (877) 610-2993 and we’ll spec it right the first time.
Conformal-coated boards from brands like Linear and DoorKing are substantially more resistant to the marine-layer humidity that kills uncoated boards in San Mateo. The uncoated boards corrode from ambient moisture before the mechanical parts show any wear, and the failure is intermittent, which is worse, because it looks like a flaky operator when it’s actually a corroded board. We stock coated boards for San Mateo installs. Call (877) 610-2993 to get one spec’d for your gate.
Yes, and it’s not a recommendation, it’s California code. Any automated gate in San Mateo, including condo and HOA sliding gates in 94403 and 94404, requires UL 325-compliant entrapment protection sensors and appropriately set safety edges. We handle the full code-compliant install, including the power run and edge programming, and everything is tested before we leave. Call (877) 610-2993 for a code-compliant install quote.
The gate is pulling away from its hinge post. In San Mateo’s 94402 hillside neighborhoods, the grade puts constant side load on the post, and if the post wasn’t set deep enough or on a proper footing, the whole assembly leans toward the latch. Fixing the panel without the post means you’ll fix it twice. We pull the post, pour a proper 30-inch-plus footing, and reset with stainless hardware. Call (877) 610-2993 for a free on-site look at what’s actually failing.
Contact Gatewood Fence & Gate for Gate Installation in San Mateo
Whether you’re on a salt-bay street in 94404, a hillside lot in 94402, or a quiet ranch-house block in 94401, we’ll come measure and give you a firm written quote before any work starts. No trip charge inside San Mateo County. No price surprises at the door. Every installation carries the 90-Day Done Right Promise in writing, and if it’s not right, we come back and make it right.
Call (877) 610-2993 now for a free estimate. A live person answers, any hour, any day. Or drive to the shop and look us in the eye. The name is on the door.
Written by Hal Gatewood, Owner at Gatewood Fence & Gate, serving San Mateo since 2001.