Smoke & CO Detectors in Madison, WI
Smoke and carbon monoxide detectors installed and replaced — placed where you'll actually hear them, and swapped before aging sensors go quiet.
A smoke or carbon monoxide detector only helps if it works and if you can hear it. Detectors lose sensitivity as they age — most smoke alarms should be replaced around every ten years, even when the test button still chirps — and a CO alarm placed in the wrong spot is one you'll sleep right through. We install and replace both, placing them near sleeping areas and on every level so they wake you when it matters.
We handle battery, sealed ten-year, and hardwired interconnected detectors. For hardwired units we talk through the box and wiring path first, and we work carefully around plaster ceilings in older Madison homes so the install stays clean. Test every detector regularly — press the button monthly and replace batteries on a schedule you'll remember.
What Detector Service Includes
Smoke Detector Installation
Install smoke alarms on every level and near sleeping areas where they'll be heard.
CO Detector Installation
Place carbon monoxide alarms near bedrooms and on each floor of the home.
Detector Replacement
Swap aging units past their ten-year service life before the sensors go quiet.
Hardwired Interconnect
Install interconnected hardwired detectors so one alarm sounds them all.
Battery & Chirp Fixes
Resolve low-battery chirps, clean dirty sensors, and reseat loose units.
Placement Guidance
Advise on where detectors belong — and where they shouldn't go.
How We Place and Replace Detectors
Tell us how many and what type
A note on the number of detectors and whether you want battery, sealed ten-year, or hardwired units is usually enough for an initial estimate by phone or email.
Plan placement per floor
We map where each detector belongs — every level and near sleeping areas — and avoid spots where alarms don't perform well.
Check the box for hardwired units
For interconnected detectors we confirm the box and wiring path, and talk through any plaster-ceiling considerations.
Install and seat each detector
Each unit is mounted securely, connected where applicable, and tested so it sounds when it should.
Test and walk you through it
We test every detector, show you how to test monthly, and leave the area clean.
Testing and Placement Tips for Wisconsin Homes
Test monthly, replace on a schedule. Press the test button once a month, and replace detector batteries on a schedule you'll remember. Replace the whole smoke detector unit around every ten years.
Place CO alarms where you sleep. Carbon monoxide is invisible and odorless, so a CO detector belongs near sleeping areas and on every level — not tucked in a far corner where you won't hear it.
A chirp isn't always the battery. A steady chirp can mean a low battery, a dirty sensor, or a detector that's reached end of life. If a new battery doesn't quiet it, the unit likely needs replacing.
First Time Clients Discount
$50 off with 4 hours of service, or $100 off with 8 hours of service.
Ask about our senior discounts for Dane County homeowners.
Offer valid for first time clients only. One discount per client.
Frequently Asked Questions
How often should smoke detectors be replaced?+
Most smoke detectors should be replaced about every ten years — the sensors lose sensitivity over time, even when the test button still beeps. If you're unsure of the age, replacing them is the safe call.
Where should carbon monoxide detectors go?+
CO detectors belong near sleeping areas so you'll hear them while you sleep, and on each level of the home. We can advise on placement and install them where they'll actually be heard.
Can you install detectors where there isn't wiring?+
Yes. Battery-powered and sealed ten-year detectors need no wiring and can go almost anywhere. Hardwired detectors with interconnect need a box and wiring path, which we'll talk through first.
Why does my smoke detector chirp for no reason?+
A steady chirp usually means a low battery, a dirty sensor, or a detector that's reached end of life. We replace the battery, clean the unit, or swap the detector depending on the cause.
How is detector installation estimated?+
A note on how many detectors you need and whether you want battery or hardwired units is usually enough for an initial estimate by phone or email.
Do interconnected detectors cost more to install?+
Hardwired, interconnected detectors need a box and wiring at each location, so they involve more than a battery unit. We can talk through which type fits your home and budget.
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