Smoke Detector

A smoke detector is a small device that senses airborne particles from fire and alerts you with a loud alarm, giving your family precious time to escape. Whether you need help with installation, battery replacement, or upgrading to interconnected units throughout your home, proper placement matters for maximum protection. Angi connects you with pros who can ensure your smoke detector setup meets safety codes and keeps your household secure.

Related to Smoke Detector Service

Smoke Detector Service Articles and Advice
Gemma Johnstone  •  May 5, 2026
How to Replace a Hardwired Smoke Detector Like a DIY Pro
Every homeowner should learn how to replace a hardwired smoke alarm, which you must do at least every decade. This guide will talk you through the process.
Mitchell Grant  •  May 5, 2026
5 Questions to Ask About Installing Fire Protection and Prevention Systems
If you’re looking to upgrade or replace your fire systems, here are some fire prevention questions you can expect to discuss with a pro before starting.
Mizuki Hisaka  •  May 5, 2026
How Long Do Smoke Detectors Last?
How long do smoke detectors last? Keep reading to find out when you should replace your smoke detectors and how to maintain them.
Angi  •  May 5, 2026
How to Hire a Smoke Detector Installation Pro
Learn how to hire a qualified electrician for smoke detector installation. Find the right pro, ask the right questions, and ensure your home's safety.
Stephanie Mickelson  •  May 3, 2026
Who Can Install Smoke Detectors in My Home?
Smoke detectors can save you precious time during a fire, so hire a qualified electrician to install hardwired smoke detectors and ensure they work properly.
Nick P. Cellucci  •  May 3, 2026
10 Critical Fire Prevention Tips for Homeowners
Cooking, smoking, electrical issues, malfunctioning alarms, and other hazards can lead to deadly house fires. Follow these tips to prevent fires from happening.
Sara Coleman  •  May 3, 2026
Put Safety First: How to Install a Smoke Detector in 6 Simple Steps
Learn how to install a smoke alarm with our step-by-step guide. It’s easy enough for almost any DIY project and adds extra protection to your home.
D.P. Taylor  •  May 2, 2026
7 Home Preparation Tips for Weather Emergencies
Learn how to prepare for a disaster at home in the event of tornadoes, blizzards, hurricanes, and flooding by following these seven tips.
Find Electricians near you
Share your project details and we’ll match you with up to 3 available pros near you.
Common Smoke Detector Service Questions

No, but they both serve distinct life-saving purposes. Smoke detectors primarily sense the presence of smoke, typically caused by a fire, and emit loud alarms to alert occupants to evacuate. In contrast, carbon monoxide detectors monitor the levels of carbon monoxide gas, an odorless and colorless but deadly substance produced by incomplete combustion of fuels. When CO levels become dangerous, CO detectors sound alarms to warn inhabitants of potential poisoning risks. 

There are a few reasons why your smoke detector may be beeping. For one, make sure the batteries you use are fresh. If they are, look at the smoke alarm's manufacturing date. If it’s more than 10 years old, this could be the detector's way of telling you that you need to replace it. You may also have tripped one of the test buttons or another setting, so consult your manual for more info.

Smoke alarms should be replaced whenever you move into a home or apartment. If you already live there, consider replacing them every five years or so. Most manufacturers will tell you that you should wait 10 years, but smoke detectors often fail and aren’t terribly expensive to replace. Because of these reasons, you are better off replacing them before you need to. 

Smoke detectors come in two different options: hardwired or battery-operated. While hardwired units are attached directly to the home’s electrical system, a battery-operated smoke detector only needs a simple battery for operation and can be placed virtually anywhere in your home. Some homeowners may mistakenly think their battery-operated units are hardwired in because all their units are interconnected, but many battery-operated units can operate within a smoke alarm network in your home.

Maintain smoke alarms, ensure safe electrical and cooking practices, and regularly clean chimneys to minimize fire or smoke hazards.