A San Mateo family home with a professionally installed security system

San Mateo County · Residential Security

Home Security Systems in San Mateo, CA, Designed Around Your House

A local installer walks the property, maps the openings that actually matter, and puts the equipment where it earns its place. Serving San Mateo, Burlingame, Foster City, Belmont, and San Carlos.

Plan your system with a San Mateo installer — (650) 414-4958See every service we install

Nothing gets drilled, mounted, or quoted until you have seen the layout on paper and agreed to the price.

  • Licensed & insured
  • Free in-home walkthrough
  • Month-to-month monitoring
  • You own the equipment

What you get before anything is installed

  • Licensed California alarm company operator
  • Bonded & general liability insured
  • Badged, background-checked technicians
  • UL-listed central monitoring station
  • No long-term contract required
  • Free in-home security assessment
  • Written flat-rate quote up front
  • Workmanship & equipment warranty
  • San Mateo alarm permit assistance

Our services

Every Home Security Service We Install in San Mateo

Some houses need one camera and a better front door. Others need a full panel, perimeter contacts, and a monitoring path that survives a power cut, and the walkthrough is what tells us which.

A dome security camera mounted under the eave of a San Mateo home

Home Security System Installation

A complete alarm system planned for your floor plan: panel, keypad, entry contacts, motion detection, siren, cellular backup, and the app set up before we leave. Every device is placed against a sightline we walked together, not a spec sheet.

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Security Camera Installation

Interior and exterior cameras positioned for faces and plates rather than wide, useless views of the lawn. We handle wiring, NVR or cloud recording, night performance, and app access on every phone in the house.

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24/7 Alarm Monitoring

Your panel reports to a UL-listed central station that verifies the signal and coordinates dispatch, backed by cellular and battery paths for when the power or the internet drops. Month to month, no multi-year lock-in.

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Video Doorbell & Entry Camera Installation

Front-door coverage that shows the porch, the package, and the person, with two-way audio you can use from anywhere. We sort out transformers and chimes so the doorbell still works the way a doorbell should.

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Smart Lock & Access Control Installation

Keypad and app-controlled deadbolts with individual codes for family, housekeepers, dog walkers, and contractors. Auto-lock rules, gate hardware, and garage access are configured and tested with you standing there.

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Motion, Door & Glass Break Sensor Installation

Contacts on the doors and windows that matter, pet-immune motion coverage inside, glass break detection on the vulnerable elevations, plus water, smoke, and CO sensing where it protects the house.

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Smart Home Security Automation

Lighting, thermostats, garage doors, and voice assistants tied into the alarm so the house behaves differently when it is empty. Away modes and schedules are built to your routine, not a default template.

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Security System Repair, Takeover & Upgrades

Faulting zones, dead sensors, chronic false alarms, and panels left behind by a previous owner or provider. We take over working hardware instead of ripping out a system that still has years in it.

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Why homeowners choose us

Why San Mateo Homeowners Call a Local Installer

A national call center sells the same package to a Shoreview ranch house and a three-story Baywood remodel. The person who walks your rooms is the person who should be choosing the equipment.

Walk your home with us — (650) 414-4958
  1. 01

    Free On-Site Walkthrough With a Written Flat-Rate Quote

    We come out, open doors, check sightlines, and note where a house is genuinely exposed. The number you receive afterward is written down, itemized, and fixed before any work starts, so there is no revision after the drill comes out. If the answer is that you need less than you expected, that is what the quote will say.

  2. 02

    Takeover Instead of Rip-and-Replace

    Plenty of San Mateo homes come with a panel from a previous owner or a provider the family walked away from. When the hardware is sound we take it over, reprogram it, and put it back into service under your account. Replacement is a recommendation we have to justify, not an automatic upsell.

  3. 03

    You Own the Equipment and Monitoring Stays Month-to-Month

    The panel, the cameras, and the sensors are yours once they are paid for. Monitoring is billed month to month, so staying with us is a choice you make again each month rather than a contract you are stuck inside. Nothing about the system is held hostage if you decide to move on.

  4. 04

    A Plain Explanation of What Happens When a Signal Fires

    Most homeowners have never been told what actually occurs in the ninety seconds after an alarm trips. We walk you through the verification call, the dispatch decision, and the backup path if the internet is down, before you sign anything. Knowing the sequence is what makes the system usable at two in the morning.

  5. 05

    False-Alarm Reduction and San Mateo Permit Help

    Repeated false alarms cost money and erode the response you are paying for. We set entry delays, sensor sensitivity, and pet-immune coverage to match how your household actually moves through the house. We also walk you through registering the alarm with the city so the paperwork is handled before the system goes live.

  6. 06

    Clean, Concealed Work by Badged Local Technicians

    Wire gets routed, not stapled across a baseboard, and penetrations get patched. The technicians who arrive are badged, background-checked, and the same people you will see if something needs attention later. A security install should leave the house looking like nothing happened to it.

Coverage

Where We Install Across San Mateo County

Coverage runs the length of the Peninsula corridor, from the San Bruno side of US-101 down through Belmont and San Carlos, west across I-280 into Hillsborough and Woodside, and over SR-92 to the coast. Knowing the area is not a marketing line here. It changes how a system gets laid out, because a hillside lot off Skyline has different exposure from a flat Foster City block with a lagoon behind it, and both differ from a North Central bungalow sitting close to the sidewalk. We schedule by corridor so the technician who reaches you is not fighting the length of the county to get there.

Peninsula townhomes on a residential street in San Mateo County

Streets We Already Know

Our technicians work these corridors weekly, from El Camino Real through Hillsdale Boulevard and out along Ralston Avenue. That familiarity shortens the drive and sharpens the site visit, because we already know how homes on a given street tend to sit relative to the road. Local knowledge shows up as a better layout, not just a faster arrival.

Scheduled by Corridor, Not by Guess

Appointments are grouped along US-101, I-280, and SR-92 so arrival windows stay honest across every city we cover. A Millbrae morning and a Redwood City afternoon belong to the same run, which is how we keep the same response standard from the coast to the bay side. You get a window we can actually hold.

One Number for the Whole Peninsula

Whether the house is in Aragon, Foster City, or up in Woodside, the same team answers, plans, installs, and comes back for service. Call (650) 414-4958 and you reach people who already know the area you are describing. There is no regional handoff and no ticket queue.

If your street is not on the list, it is almost certainly still inside the run.

Check coverage for your street — (650) 414-4958

Your House Deserves a Layout, Not a Boxed Kit

A walkthrough takes under an hour and costs nothing, and it ends with a written price you can sit with. Whether the answer is a full system or two sensors and a doorbell, you will know exactly what protects the house and what it costs.

Book your free walkthrough — (650) 414-4958

Licensed, insured, and installed by the same badged technicians who come back for service.

Common questions

Home Security Questions San Mateo Homeowners Ask

Straight answers to what comes up most on the walkthrough.

A badged technician installing security equipment at a San Mateo home

About us

A Local Installer, Not a Call Center

San Mateo Home Security is a residential security installer working the Peninsula corridor between San Bruno and Menlo Park. The person who walks your house is a badged local technician, and the same team handles the layout, the install, and the service call two years later. San Mateo Home Security answers its own phone, which is not a small thing in this trade.

More about how we work

Start With a Walkthrough of Your San Mateo Home

Tell us about the house and we will schedule a visit that ends with a layout and a written price. There is no charge for the assessment and no obligation attached to the quote.

Speak to an installer(650) 414-4958
Talk to a San Mateo installer — (650) 414-4958Check your city's coverage
  • Licensed and insured
  • You own the equipment
  • Month-to-month monitoring
  • Permit help included