Motion, Door & Glass Break Sensor Installation
Motion, Door & Glass Break Sensor Installation in Daly City, CA
The detection layer, placed so it catches what matters and ignores the cat, the heater vent, and the fog off Skyline Boulevard.
Get your detection layer mapped — (650) 609-2480Detection Is a Placement Problem Before It Is a Hardware Problem
Sensors are the cheapest part of a security system and the part most responsible for whether anyone keeps using it. Put a motion detector opposite a west-facing window in a St. Francis Heights living room and the late afternoon sun will trip it for years. Put a contact on a door that swells in damp weather without accounting for the gap and it will fault every winter. Daly City Home Security treats sensor installation as the design-sensitive work it is: mapping the openings that a person would realistically use, choosing detector types to match each room's conditions, and placing everything so the household can arm the system at night without bracing for a false trip. Homeowners typically call for this service when expanding an existing system, when a previous install left obvious gaps, or after false alarms taught them that whoever placed the original sensors never walked the house.
What Sensor Installation Covers
Opening inventory and risk ranking.
Every exterior door, ground-floor window, garage entry, and accessible upper window is listed and ranked by how a person would actually approach the house.
Door and window contact installation.
Magnetic contacts set with correct gap tolerance, including on doors known to swell, so damp weather does not generate faults.
Pet-immune motion detection.
Passive infrared detectors selected and mounted at heights and angles that ignore animals under a set weight while still covering the room's traffic path.
Heat and sunlight avoidance.
Detectors kept away from heater vents, fireplaces, direct sun, and stairwell drafts, which are the four most common causes of phantom interior trips.
Glass break detector placement.
Acoustic detectors positioned within effective range of the vulnerable glass, prioritizing ground-floor rooms facing side yards, alleys, and dark setbacks.
Perimeter-versus-interior zoning.
Zones configured so you can arm the perimeter overnight while people move freely inside, which is the single biggest reason systems get armed consistently.
Water and flood sensors.
Detectors placed at water heaters, under sinks, behind washers, and in crawl access points where a slow leak would otherwise go unnoticed for weeks.
Smoke and carbon monoxide sensors.
Monitored life-safety detectors installed where the layout requires them, escalating on their own path rather than as a burglary signal.
Zone naming and testing.
Each zone is named in plain language on the panel and in the app, then walk-tested individually so you see exactly what each one covers.
Entry and exit delay tuning.
Delays set to the real distance between your door and your keypad, so nobody is sprinting down a hallway to disarm.
How Sensors Get Placed
- 1
Walking the openings
The technician walks the perimeter and interior with you, noting which doors are actually used, which windows are reachable, and where pets spend their time. Sun exposure and vent positions are noted at the same time. You approve the map and get a flat written price.
- 2
Mounting and pairing
Installation is typically a half day for a full detection layer. Each device is mounted, paired to the panel, and assigned to a named zone. Contacts are gap-tested on the actual door in its current condition rather than a nominal spec.
- 3
Walk test and tuning
Every zone is walk-tested while the panel reports, so nothing is assumed. Motion sensitivity, pet immunity settings, and entry and exit delays are adjusted on the spot, and you run the arming sequence yourself before the technician leaves.
Why These Sensors Stay Armed
False trips are designed out, not troubleshot later
Placement accounts for sun, heat, drafts, and pets from the start. A system that does not cry wolf is a system the household keeps turning on.
Zoning that fits how people live
Perimeter-only arming for the night and full arming when the house is empty means nobody has to choose between security and walking to the kitchen at midnight.
Life-safety sensors handled on their own path
Smoke, carbon monoxide, and water events escalate differently from a burglary signal, and that difference is configured deliberately rather than left at a default.
- Licensed & Insured
- Written Flat-Rate Pricing
- Typically a half-day install
- Every zone walk-tested before handoff
Close the Gaps Before They Matter
Most systems that fail did not fail on hardware. They failed because a sensor was never placed on the opening someone actually used. A walkthrough finds those gaps in about half an hour.