Smoke & CO Detectors
Hardwired, interconnected smoke and carbon monoxide alarms, installed where code calls for them and tested before we leave.
- Local since 1985
- Answered day or night
- Upfront pricing

Smoke & CO Detectors in Loganville, GA
Smoke and carbon monoxide detector services cover installing, replacing, and testing the alarms that warn your family about fire and dangerous gas buildup in your home. Keep Smiling Plumbing, Electric, Heating and Cooling has served Loganville since 1985, and detector installation is one of the most important safety-focused electrical services we provide. Our licensed electricians install hardwired and interconnected systems to code and give you upfront pricing in writing before any work begins.
Book ServiceWhat’s the Difference Between Smoke and CO Detectors?
Smoke detectors and carbon monoxide detectors protect against two different dangers. Smoke detectors sense smoke particles from a fire. Ionization sensors respond quickly to fast, flaming fires, photoelectric sensors are better at detecting slow, smoldering fires, and dual-sensor alarms combine both. Carbon monoxide detectors sense CO, an odorless, colorless gas produced when fuel burns, which can come from furnaces, water heaters, gas ranges, fireplaces, generators, and running vehicles. Because you can’t see or smell carbon monoxide, a working CO detector is the only reliable way to know it’s there. Combination units protect against both in one device.
Signs You Need New Smoke or CO Detectors
- Your smoke detectors are 10 years old or more
- Your CO detectors are 5 to 10 years old, or past the date on the label
- Detectors that chirp even after you’ve replaced the battery
- Alarms that fail when you press the test button
- Missing detectors in bedrooms, hallways, or on any level of the home
- Detectors that aren’t interconnected, so one alarm doesn’t trigger the rest
- A home with gas appliances, a fireplace, or an attached garage and no CO detectors
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Smoke and CO Detector Services We Provide
From replacing a single alarm to installing a whole-home interconnected system, our electricians handle it all:
- Hardwired smoke detector installation and replacement
- Carbon monoxide detector installation for homes with fuel-burning appliances
- Combination smoke and CO detector installation
- Interconnected alarm systems so every detector sounds together
- Smart detectors that send alerts to your phone
- Detector testing, troubleshooting, and code compliance checks during electrical inspections
Benefits of Upgrading Your Smoke and CO Detectors
Smoke and carbon monoxide detectors are the kind of safety equipment you hope never goes off, but you need them working perfectly if they do. A fire can spread through a home in minutes, and carbon monoxide can build up silently while your family sleeps. Modern, interconnected detectors give everyone in the house the earliest possible warning, no matter which room the danger starts in. That extra time is what matters most:
- Earlier warnings that give your family more time to get out safely
- Interconnected alarms that sound throughout the house, so everyone hears it, even behind closed doors
- Protection from carbon monoxide, which you can’t see, smell, or taste
- Hardwired power with battery backup, so detectors keep working during power outages
- Smart alerts that reach your phone when you’re away from home
- Peace of mind that your home meets current safety codes
Where to Install Smoke and CO Detectors
Placement makes a big difference in how well detectors protect your family. Here’s where they belong:
- Smoke detectors inside every bedroom
- Smoke detectors in hallways outside sleeping areas
- Smoke detectors on every level of the home, including basements
- CO detectors outside sleeping areas and on every level of the home
- CO detectors near rooms connected to an attached garage
- Detectors kept a few feet away from kitchens, bathrooms, and HVAC vents to reduce false alarms
Your electrician will walk through your home and recommend the right number, type, and placement of detectors for your layout.
Smoke and CO Detector Care Tips
A few simple habits keep your detectors ready when you need them:
- Press the test button on each detector once a month
- Replace backup batteries at least once a year, unless your detectors have sealed 10-year batteries
- Gently vacuum or dust detectors to keep sensors clear
- Replace smoke detectors every 10 years and CO detectors according to the manufacturer’s date
- Never disconnect a detector or remove its battery to stop false alarms

Replace the Battery or Replace the Detector?
If your detector is less than 10 years old and starts chirping, a fresh battery usually solves the problem. But if it keeps chirping after a new battery, fails its test, or sounds false alarms often, it’s time to replace it. Every detector has a manufacture date on the back, and sensors lose sensitivity with age even when they still seem to work.
If one detector in your home is past its prime, the others likely are too. Many homeowners replace all their detectors at once so the whole system is on the same timeline and interconnected. We’ll check your detectors and give you pricing for individual replacements or a full system upgrade.
Why Smoke and CO Protection Matters in Loganville Homes
Many Loganville homes rely on gas furnaces, water heaters, ranges, and fireplaces to get through the winter, and each one is a possible source of carbon monoxide. Summer storms can knock out power and lead families to run portable generators, which create serious CO risks if they’re placed too close to the house. Here’s what makes detectors especially important around town:
- Gas furnaces and water heaters that run hard during winter cold snaps
- Fireplaces and gas logs used through the cooler months
- Attached garages where running vehicles can push CO into the home
- Portable generators used during storm outages, which a permanently installed home generator can replace more safely
- Older homes with original detectors that are well past their lifespan
- Power outages that make battery backup essential for hardwired detectors
Our Smoke and CO Detector Installation Process
- Schedule your smoke and CO detector installation online or by phone.
- Your electrician checks your existing detectors, wiring, fuel-burning appliances, and home layout.
- We recommend the right detectors and placement and give you written, upfront pricing.
- With your approval, we install hardwired, interconnected, or combination detectors to code.
- We test every detector, confirm they’re interconnected, and make sure battery backups are working.
- We show you how to test your detectors and explain when they’ll need replacing.
Smoke and CO Detector Installation Across Loganville Neighborhoods
Your family’s safety is worth a few minutes of checking the dates on your detectors. We install and replace smoke and carbon monoxide detectors for homeowners all over Loganville. In established neighborhoods like Independence and Bay Creek, many homes still have original detectors that are long overdue for replacement. In newer communities, homeowners often add CO detectors and smart alarms for extra protection. Here are some of the neighborhoods we serve:
- Independence
- Windance Lake
- Bay Creek
- Tara Club Estates
- Brushy Fork
- Haynes Creek
Smoke and CO Detector Costs and Financing
Detector installation costs depend on how many detectors you need, whether they’re hardwired, interconnected, combination, or smart models, and whether new wiring is required. You’ll always see a written price before we start. For larger electrical projects, financing is available through Service Finance and Chowder. Keep Smiling Club members also get 10% off repairs and an annual electrical safety inspection.
Why Choose Keep Smiling for Smoke and CO Detectors in Loganville
Keep Smiling Plumbing, Electric, Heating and Cooling has served Loganville since 1985, and our licensed electricians install detectors under Georgia Electrical License EN217959. Because we also service furnaces, water heaters, and gas lines, we know where CO risks start in a home. Every technician is background checked and drug screened, and we were named Best of Gwinnett in 2025.
Smoke and CO Detectors in Loganville FAQs
Why people keep calling Keep Smiling.
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Write a Review (opens in a new tab)Serving Northeast Atlanta, county to county.
10 counties, 54 cities, one crew that works the same way in all of them. A truck from us is a truck from us wherever you are.
- AlpharettaFulton County
- BufordGwinnett County
- DuluthGwinnett County
- DunwoodyDeKalb County
- GainesvilleHall County
- Johns CreekFulton County
- LawrencevilleGwinnett County
- LoganvilleGwinnett & Walton County
- MonroeWalton County
- Peachtree CornersGwinnett County
- SnellvilleGwinnett County
- SuwaneeGwinnett County
…and 42 more across Barrow, DeKalb, Forsyth, Fulton, Gwinnett, Hall, Jackson, Newton, Rockdale and Walton County.
Protect Your Family With Working Detectors
Smoke and carbon monoxide detectors give your family the warning they need to get out safely. Our licensed electricians will make sure you have the right detectors in the right places, interconnected and ready to work when it counts. Schedule your smoke and CO detector installation with Keep Smiling today.
(770) 273-9090
