Smoke & carbon
monoxide detector
installation in
Northern Virginia.

USFA recommends a smoke alarm in every bedroom, outside each separate sleeping area, and on every level, including the basement. Exact mounting locations and separation from cooking, bathrooms, or air movement depend on the alarm instructions and applicable requirements. We review your layout before installation.

CPSC recommends CO alarms on every level of the home and outside sleeping areas. The manufacturer’s instructions determine suitable mounting locations for the specific model. A smoke-only alarm cannot detect CO; a listed combination alarm can provide both functions where appropriate.

Replace smoke alarms 10 years from the manufacture date, or sooner if they fail or the manufacturer calls for earlier replacement. Monthly testing remains important, but a successful test does not extend the replacement deadline. We can help confirm unreadable dates or missing records.

Not all of them. CO and combination alarms have model-specific replacement schedules and end-of-life signals. Check the label and manual for the actual device, including whether its timing runs from manufacture or activation. Do not use the smoke-only date planner to decide a CO alarm’s remaining life.

Section 302.3 in 13VAC5-63-431 addresses repair or replacement smoke alarms: the devices must meet UL 217 and be no more than 10 years old from manufacture; battery-only devices use a 10-year sealed battery. Section 704.6 in 13VAC5-63-545 is a maintenance provision and does not itself state a ten-year replacement interval. Other applicable requirements and manufacturer instructions still matter.

Interconnected alarms share a signal so compatible units can sound together when one detects a hazard. The connection may be wired or wireless, depending on the products and installation. We verify listed compatibility and test the system’s response; a matching connector alone is not enough.

Yes. We assess the existing alarms, wiring, power, and compatibility, then explain the replacement or installation scope. New locations or changes may require wiring, access, or permit review. We discuss those needs before the work begins.

Get everyone outside and call 911 from a safe location. Stay out until emergency responders say it is safe to return. Do not remain inside to find the source of CO, and do not wait for an electrician’s appointment or a website form response. If you are unsure whether the signal is an alarm, treat it as one.

Battery, fault, and end-of-life signals vary by model. Check the device’s instructions and address the indicated condition promptly. Do not remove batteries or disconnect an alarm to silence it. If the sound is a full alarm, or you cannot identify it, get outside and call 911.

Yes. Follow the model’s testing and cleaning instructions; smoke alarms should be tested monthly. A sealed battery does not make an alarm maintenance-free. If the device signals end of life or fails its test, follow the replacement instructions rather than trying to replace a sealed battery.

The cost depends on the number and type of alarms, existing wiring, mounting access, interconnection needs, and any required electrical changes. Share the property details and known concerns. We confirm the proposed scope and pricing before you authorize work.

Yes. PRO Electric plus HVAC serves these Northern Virginia counties and Falls Church. We install, replace, and test residential smoke and carbon monoxide alarms, review compatible interconnection, and record device dates. Send the service address and any inspection report or deadline with your request.