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Safety Devices

Home Safety Devices

Smoke and Carbon Monoxide Detector Installation in Contra Costa County

Smoke and carbon monoxide detectors are small devices with a huge job: giving your family the time to get out safely. When they are missing, expired, or poorly placed, that early warning disappears. J&A Pro Electric installs and replaces detectors so your home stays protected around the clock.

Our smoke and carbon monoxide detector installation service includes hardwired and combination alarms, replacement of aging units, and placement based on the layout of the home. We test every alarm before we leave and show you how to maintain the system and recognize its warning signals.

Free Estimates

Same-Day Service

5-Star Rated

Free Estimates

Smoke and CO Detector Installation

Upgrade or replace your home’s alarms with a clear, upfront price.

Protection That Never Sleeps

Early Warnings for the People You Love.

How We Protect Your Home

Detector Installation Done Right

Proper placement and reliable power make all the difference. Our process covers both:

01. Walkthrough and Assessment

We review your existing alarms, their age, and where your home needs coverage.

02. Installation and Replacement

We install hardwired or combination alarms with secure, code-compliant connections.

03. Testing and Walkthrough

We test every alarm and show you how to maintain them and recognize each warning.

Safer Homes Countywide

Protecting Families Across Contra Costa County

From new homeowners in Mountain House to longtime residents in Walnut Creek, Clayton, and Antioch, we help families keep their homes protected.

Antioch / Brentwood / Oakley / Pittsburg / Bay Point / Discovery Bay / Bethel Island / Concord / Clayton / Martinez / Walnut Creek / Lafayette / Orinda / Danville / Blackhawk / San Ramon / Mountain House /

Customer Reviews

Peace of Mind Our Customers Can Hear

Read how homeowners feel knowing their alarms are installed correctly and ready to respond.

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J Clark profile picture
J Clark
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Kind, clean, professional! Would use again!
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James Jackson profile picture
James Jackson
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Joe gets the highest recommendation. Great energy, knowledgeable, and most of all great quality of work and value. He upgraded my Ethernet and WiFi system and everything is running faster and smoother than ever. Whatever you need done, he’s your guy!
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Steve Parker profile picture
Steve Parker
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Skilled and extremely professional service. Had very poor internet connection in a large part of my house, Joey and his team assisted with running some cat 6 ethernet wire and installing an additional router. Efficient and affordable, quick servoce as well. Thank you again.
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Lindsay Cacatian profile picture
Lindsay Cacatian
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J&A Pro Electric Services installed our EV charger, and the experience was excellent from start to finish!! They handled everything including running new wiring, installing a dedicated circuit, and making sure everything was up to code. The installation was clean, professional, and completed on time. If you’re looking for EV charger installation in Contra Costa County, I highly recommend J&A Pro Electric Services.
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Maureen Willhoite profile picture
Maureen Willhoite
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J&A installed a very much needed ceiling fan and two outdoor light fixtures, they also did a small bathroom remodel prior, I love the way everything turned out! Thanks for doing such a great job and I would recommend them for sure. Reasonable pricing and great work!
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Adrian Valdez profile picture
Adrian Valdez
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J&A Pro Electric Services installed hardwired smoke detectors throughout our home, and the entire process was smooth and professional. They upgraded our system with interconnected smoke and carbon monoxide detectors, ran new wiring where needed, and made sure everything was up to current code. If you’re looking for a licensed electrician in Contra Costa County for smoke detector installation or electrical safety upgrades, I highly recommend J&A Pro Electric Services.
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ALEJANDRA FRANCO profile picture
ALEJANDRA FRANCO
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I had an amazing experience with J&A Pro Handyman & Electric installing my new EV charger! The team was professional, knowledgeable, and made the whole process smooth from start to finish. They arrived on time, explained everything clearly, and completed the installation quickly and safely. Their attention to detail and quality of work really stood out. It’s great to find a company you can trust with electrical work, especially something as important as an EV charger. I highly recommend J&A Pro for anyone looking for reliable and top-quality service. I’ll definitely be calling them again for future projects!
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Antonio Sandoval profile picture
Antonio Sandoval
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Big thanks to J&A Pro Handyman and Electric Service for installing our new ceiling fan in the kitchen! We had been wanting to get this done for a long time because it gets so hot when we cook, and now the difference is amazing. Joseph and his team were quick, professional, and did a clean installation. We’re so happy with the result and grateful for their excellent service. Highly recommend!
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Maggie Bejarano Sandoval profile picture
Maggie Bejarano Sandoval
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I had a great experience with J&A Pro Handyman and Electric Service! My bedroom door was badly damaged after my dog ran into it and shattered the mirror glass. Joseph and his team came right away, removed the broken door safely, and replaced it with a brand-new one. They handled everything from removal, replacement, and installation quickly and professionally. The door looks perfect now — even better than before. I really appreciate their attention to detail, great communication, and quality workmanship. I highly recommend J&A Pro Handyman and Electric Service for any home repair needs. Reliable, skilled, and very easy to work with!
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Jennifer Parker profile picture
Jennifer Parker
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I have nothing than words of appreciation for the J&A team. They took care of our small bathroom remodeling; they were reliable, cost effective and pleasant to deal with. 100% recommend.
Protect Your Home Today

Are Your Alarms Ready When It Matters?

If your detectors are chirping, aging, or missing from key areas, tell us what is installed and we will recommend the appropriate replacement setup. Preparing to sell? An electrical inspection can also review your alarm setup and other visible electrical safety concerns.

Safety Device FAQs

Detector Questions, Answered

Want to check your home’s coverage? Call our team.

Where should smoke and CO detectors be installed?

Common safety recommendations call for smoke alarms inside each bedroom, outside sleeping areas, and on every level of the home, with CO alarms outside sleeping areas and on each level. We assess your layout and recommend the right coverage.

Most smoke and CO alarms have a limited service life, often around 7 to 10 years. Check the date on the back of each unit, and we can replace any that are expired.

Hardwired alarms run on your home’s electrical system with battery backup, and interconnected models sound together, so a warning in one room alerts the whole house.

Chirping usually means a low battery, an expiring unit, or a fault. If a new battery does not stop it, the alarm may need replacing.

Yes. We replace existing hardwired alarms, including upgrading to combination smoke and CO units.