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Indoor Motion Sensors

Motion Sensor Installation in Houston

Every entry point and hallway covered, wired to your existing setup, with no blind spots left behind.

  • Free Itemized Estimate
  • Post-Install Check
  • Walk-Through Included
Motion sensor mounted high on interior wall at hallway choke point

What Goes Wrong

Why some motion sensor installs leave gaps

The sensor itself is rarely the problem, placement angle and wiring compatibility are where most installs fall short.

Wrong Mount Height

A sensor mounted below 6 feet narrows the detection arc and leaves the upper half of a doorway or hallway uncovered.

Corner Wall at 6-8 Feet

Mounting a PIR sensor head at 6 to 8 feet on a corner wall delivers the widest arc with the fewest units needed.

Open Plan Blind Spots

In open floor plans, one centrally placed sensor rarely covers all movement paths, large areas go undetected between zones.

Choke Point Mapping

The installer identifies the hallways, landings, and entries every person must pass through, then places sensors at those specific points.

Wiring Mismatch

Fitting a sensor to a switch box without checking for a neutral wire can leave the unit non-functional or requiring an adapter after the fact.

Box Check Before Mount

The installer inspects the switch box first, then selects a sensor that matches the load wire and switch configuration already in place.

No Coverage Test

Skipping a walk-test means false alert sources, heat vents, large furniture, stay in the sensor’s arc until the homeowner notices a problem.

Walk-Test at Close

A walk-test after wiring confirms each sensor triggers at the correct range and angle before the job is considered finished.

What’s Covered

Sensor placement and wiring for every common setup

From a single entryway sensor to a full choke point layout across multiple floors, the scope adapts to your home’s configuration.

Entryway & Door Sensor Placement

Sensors positioned at main entries to catch movement crossing the threshold at the correct detection angle.

Hallway & Stairway Coverage

Corner-wall mounting at 6 to 8 feet ensures full arc coverage along corridors and stairwells with no mid-path gaps.

3-Way Switch Wiring

Sensors wired into circuits controlled by two switches, matched to the existing load wire and switch box layout.

Older Home Wiring Compatibility

Switch boxes in dated Houston properties are inspected for neutral wire availability before a sensor model is selected.

Single-Pole Switch Wiring

Standard single-switch circuit, straightforward sensor match.

Ceiling Mount Option

360-degree PIR coverage for open or square rooms.

Wall Mount Option

Directional arc aimed at a specific entry or path.

Multi-Sensor Layout

Coordinated placement across several choke points.

Right Placement, First Time

How sensor placement and wiring decisions determine real coverage

Where a motion sensor goes and how it connects to your existing wiring both affect whether it actually works.

Placement comes first. In Houston homes with open floor plans, a single poorly positioned sensor can leave large areas undetected. The installer maps choke points, the hallway between bedrooms, the landing at the top of stairs, the entry from an attached garage, where any intruder must pass. Passive infrared sensors mounted at 6 to 8 feet on a corner wall cover the widest arc with the fewest units.

Wiring compatibility is the second decision. Older Houston properties sometimes have dated switch boxes that lack a neutral wire, which limits which sensor models will work without an adapter. The installer checks the box before selecting the unit, matching the sensor to the load wire and switch configuration, including 3-way setups where two switches control one circuit.

After mounting and wiring, a walk-test confirms each sensor triggers at the expected range and angle. The PIR sensor head is adjusted if the coverage arc misses a corner or catches a heat source that would cause false alerts. The job closes only after every sensor reports correctly and no blind spots remain in the covered zones.

Why Choose Us

Why Houston Security Pros for motion sensor installation?

Accountability at every stage, from the written estimate through to the post-install confirmation.

Written Estimate Before Any Work

You receive an itemized quote listing every sensor and labor cost before anything is booked or scheduled.

Vetted Local Installers

We connect you with vetted independent local partners who know Houston home layouts and wiring conditions.

Post-Install Sensor Check

After the job, we confirm every sensor reports correctly, not just that it was mounted and wired.

Installer Walk-Through

Before leaving, the installer demonstrates the system so you know exactly what each sensor covers and how to test it.

No Surprise Scope Changes

Wiring complexity is assessed at the visit, so the quote you approve reflects the actual job, not a best-case estimate.

A completed alarm system installation job at a house
A finished alarm system installation project

How It Works

From first contact to fully tested sensors

  1. 01

    Request Your Estimate

    Share your property details and we arrange a local installer to visit, assess your layout, and provide a free itemized written quote.

  2. 02

    Install & Wire Sensors

    The installer mounts each sensor at the correct height and angle, then wires it to match your existing switch box configuration.

  3. 03

    Test & Confirm Coverage

    A walk-test verifies every sensor triggers at the right range, with adjustments made until no blind spots or false alert sources remain.

Pricing Estimates

Typical Motion Sensor Installation Prices

JobTypical cost
Single motion sensor install$75-$150
Multiple sensor placement in a home$200-$500
These prices are estimates and often vary with the condition, size and scope of each job. Message or call us for a free, no-obligation quote.
See all prices

Common Questions

Questions about motion sensor installation in Houston

Where should motion sensors be placed in a home?

The most effective positions are hallways, stairwells, and main entry corridors, choke points that anyone moving through the home must pass. Placing sensors in the middle of large open rooms creates blind spots on both sides. Mounting height of 7 to 8 feet in a corner gives the widest coverage arc.

What happens if I delay getting sensors installed?

Entry points and hallways remain unmonitored, meaning movement through those areas goes undetected by your security setup. A gap in coverage at a choke point is the most common reason an alarm system fails to trigger when it should.

Why does my sensor keep triggering false alerts?

The most common causes are ceiling fans, heating or cooling vents, and direct sunlight through windows. These heat sources move or shift within the sensor’s detection arc. Adjusting the sensor angle to exclude them, identified during a walk-through, resolves most false alert issues.

Do motion sensors work in every room?

Not equally. Sensors work best where movement crosses their detection arc, such as hallways and entries. Large rooms with heavy furniture or irregular layouts can block coverage. Placement matters more than the sensor itself, a well-positioned sensor in a hallway outperforms one poorly placed in a wide-open room.

What affects the cost of a motion sensor install?

The main factors are the number of sensors, the mounting positions, and the wiring complexity. A straightforward single-pole install costs less than one requiring 3-way wiring or a switch box without a neutral wire. A written estimate is provided before any work is booked.

More questions about Motion Sensor Installation?

Get Every Entry Point Covered

Send us your property details and we’ll arrange a local installer to visit, assess your layout, and provide a free itemized written estimate, components and price confirmed before any work begins.

Request Your Estimate