Smoke and CO Detector Installation in Leesylvania, VA

Are the alarms in your Leesylvania home past their date?

Very likely, if no one has changed them. The NFPA says to replace smoke alarms 10 years after the date printed on the back. Per the Census ACS, about 39% of Leesylvania homes went up from 2000 to 2009. The alarms the builder put in those homes are now 17 to 26 years old.

The next wave is coming due too. About 40% of homes were built from 2010 to 2019. A home in Eagles Pointe or Port Potomac from 2014 has alarms that hit 10 years in 2024. In practice, most homes here built before about 2016 are due now.

Hardwired alarms in homes of this age are usually linked, so one sounds them all. When we replace them, we swap the whole set at once with matching units and test that every alarm sets off the rest. To count how many your floor plan needs, try our smoke detector calculator.

Gas heat in half the homes: where CO alarms go

Census data shows about 51% of Leesylvania homes heat with utility gas (Census table). A gas furnace, gas water heater or attached garage are all reasons to have carbon monoxide alarms. Gas here comes from Washington Gas or Columbia Gas. The Washington Gas service territory page says Columbia Gas serves some areas of Prince William. Your gas bill tells you which.

The CPSC says to put CO alarms on each level and outside sleeping areas. It says not to put them in kitchens, above fuel-burning appliances or near heating vents. Hard-wired or plug-in CO alarms should have battery backup.

Power outages raise the risk. The county's outage page warns never to run a generator inside a home or garage, and to keep generators and grills away from doors, windows and vents.

Permits, condos and adding new alarm spots

For a straight swap of a hardwired alarm, the permit rule is not settled. Smoke alarms are not on the state's exemption list, and we found no county page on it. Prince William County Building Development at 703-792-6930 can answer for your home.

Adding alarms in new spots means running new wire. The county's Do I need a permit? guide lists a new circuit, fixture or receptacle as permit work.

About 19% of Leesylvania homes are in buildings with 50 or more units. In a large condo building, your alarms may connect to more than your own unit. Ask your association before anyone changes them.