Smoke and CO detector installation
Hardwired detectors have a lifespan of about ten years, and then they start chirping, false-alarming, or missing real events. We replace them as an interconnected set so that when one senses smoke, every alarm in the house sounds. Colorado requires a CO alarm within 15 feet of every sleeping area, and we sort that out at the same visit.
- Replace every
- About 10 years
- Interconnected
- One sounds, all sound
- CO coverage
- Placed to Colorado code
- 5-star Google reviews
- 1495-star Google reviews
- Years of experience serving the South Denver metro
- 20+Years of experience serving the South Denver metro
- Master ME.0601023
- LicensedMaster ME.0601023
- Price agreed before work starts
- FixedPrice agreed before work starts
Do any of these sound familiar?
Signs you need this
Alarms chirping or false-alarming for no reason
Sensors drift as they age. Past about ten years the whole set is due rather than the one that is complaining.
A date stamp on the back older than ten years
Every detector has a manufacture date printed on it. If you cannot find one, it is old enough to replace.
No CO alarm near the bedrooms
Colorado law requires one within 15 feet of every sleeping area in homes with fuel appliances or an attached garage.
Alarms that do not sound together
If setting one off does not trigger the others, the interconnection is broken or was never there.
What it costs
$149to$299
per device installed
- What moves the price
- combination smoke and CO versus smoke only, sealed ten-year versus replaceable battery, and ceiling height.
- What is included
- the device, interconnection to the existing set, and a full-system test.
Estimated range, reviewed regularly. Your exact price is fixed in writing before any work begins.
What the price covers
- A count and date check on every existing detector
- Devices matched across the house so they interconnect reliably
- CO coverage placed correctly for Colorado requirements
- Sealed ten-year units offered so you stop changing batteries
- A full-system test with every alarm confirmed sounding together
- Old units disposed of properly
Our work
Our smoke & co detectors work
Start to finish
How the job goes
- 1
We count the existing detectors and check the date codes and interconnection.
- 2
You choose combination or smoke only, and sealed ten-year or replaceable battery units.
- 3
We replace the set, keep them interconnected, and add CO coverage where code requires it.
- 4
We test every alarm and confirm they all sound together.
Permits and inspection
Like-for-like detector replacement is maintenance. Adding detectors on new wiring, or interconnection where none existed, may be permitted depending on scope, so confirm with the Town of Parker or Douglas County.
Why homeowners here call us
A real person, start to finish
A real person answers the phone, you get a two-hour window rather than a vague day, and one of our licensed electricians does the work. Allsafe’s Google reviews name our electricians personally.
Reviews
What customers say about this work
5.0155 reviews
“Master electrician. We had a job list and he and his partner too care of fan installation, 2 dedicated electrical outlets, moving one plug in lower position. New smoke detectors because they were outdated. He went to home depot to purchase the smoke detectors I can't explain how comfortable i felt with all of this work If we were doing stars. He would get 20 not 10”Read the full review
7 months ago
“Judson was very responsive following a contractor at my house, taking out the power in front room and exterior lights. Judson was able to come out within 1 day to troubleshoot and fix the breaker, allowing for proper lighting in time for Halloween! I really appreciated the 30minute call ahead and his ability to alleviate my concerns by explaining to me the root cause of the issue. I will definitely be using Allsafe again!”Read the full review
4 days ago
“Jud has been phenomenal! He's attentive to detail, works fast and honest, and took the time to show and explain what needed to be done every step of the way. Will definitely have him out again when it's time for more electrical work. :)”
26 days ago
“I had several outlets that were not working. I called Allsafe and they were able to schedule me quickly. They were knowledgeable, kept me informed during the process, and did a thorough job. I would highly recommend them!”
a month ago
“Did a fantastic job on replacing my panel in my home !!!”
a month ago
“We were in need of a professional electrician to complete a small install in a short period of time. Jud, at Allsafe, was very accommodating and completed the work quickly and on time to complete the project! We really appreciate his availability. Thank you!”
a month ago
“Jud and team were excellent. They scheduled us quickly, worked fast and did outstanding work. Communication was very good throughout, and very fair pricing.”
a month ago
“We did not have power coming through a circuit in our garage. When I called on a Friday morning, I fully expected we would have to wait until after the weekend for an electrician to come out. But Jud was able to come diagnose the issue within just a few hours! I was very impressed, and so happy that he was also able to fix the problem very quickly. Jud was very professional, explained everything so well, and is very trustworthy.”Read the full review
a month ago
Common questions
How often do hardwired smoke detectors need replacing?
About every ten years. The battery is a backup, and the sensor itself wears out on that timeline regardless of how often you change batteries.
Can I mix battery and hardwired detectors?
They should behave as one interconnected system. We can add battery-interconnect units where running a wire is impractical, so a fire in the basement still wakes the bedrooms.
Where does code require CO alarms in Colorado?
Within 15 feet of each room used for sleeping, in homes with fuel-burning appliances or an attached garage. We place them correctly as part of the job.
My alarm chirps even with a new battery. Why?
That is end of life. Modern units chirp a distinct pattern when the sensor expires, and replacing the battery will not stop it.
Where we do smoke & co detectors
We handle smoke & co detectors across Parker and the surrounding south metro. That includes Parker, Castle Rock, Highlands Ranch, Lone Tree, Centennial and The Pinery, plus every other town on our service area page. Each town page lists its own permit authority and electric utility, which genuinely differ across Douglas, Arapahoe and Elbert counties.
Related electrical work
- Surge protectionOne panel-mounted device shields the whole house from grid spikes and lightning.
- Safety inspectionsA licensed electrician opens the panel and gives you a written report with photos.
- Panel upgrades & repairsFuse boxes, tripping breakers, and Federal Pacific panels replaced. Most run $2,200 to $8,800.
Talk to a real person
Ready to get it sorted?
Request a quote online any time, or call and talk it through with a real person. Free estimates on quoted work, and all repair pricing is provided in writing before work begins.
- Licensed master electrician, ME.0601023
- Serving Parker and the south metro since 2018
- 11479 Pine Dr M-51, Parker, CO 80134
Get an estimate
Tell us what is going on. We reply the same business day.