Installation -We bring everything to install, so you don’t have to worry. 

Pricing includes installation, warranty and a personal detailed fire/CO plan of your home.



Smoke alarm – $30




10 year Worry Free smoke alarm – $50

10-year alarms have a sealed lithium ion battery installed. They cost more up front but save you hundreds of $$ in 9volt batteries over the life of the alarm.

Combo Carbon Monoxide alarms – I highly recommend adding 1 Combo Carbon monoxide/Smoke alarm on each level of your home for the best protection.

81nmUO-+5wL._SY355_Regular CO/Smoke Alarm – $65

i12010S_angle_110 year Worry-Free CO/Smoke alarm – $85

All alarms come with a 10year manufacture warranty!                       

Install an interconnected wireless system. (save thousands not having to run new wires to install new smoke alarms)  

Have an old home that does not have the wiring for smoke alarms? Have an area of your home that is not protected?We have the perfect option for you!                               

  • Intelligent wireless interconnect with 10 year worry free battery smoke only. 
Wireless interconnect 10 year worry free bat smoke only
  •  Intelligent wireless interconnect with 10 year worry free battery combo co/smoke alarm.
Wireless interconnect W/ 10 year worry free bat Combo CO/Smoke.

– Annual Maintenance Plan (Up to 6 detectors): Inspect, clean, replace old batteries with Duracell brand and recycle old alkaline batteries, synchronize and test detectors. $70.00

  • If there are more than 6 detectors, an additional charge of $10.00 per detector/battery will be added.

*Each detector installed and sold by SDP has a 10 Year Warranty from date of manufacture. We do not warranty products, only the manufacturer.

*All of my detectors are factory direct so I get them on avg. $10 cheaper per alarm than your hardware store. In turn saving you money and having it done right! 






Proudly serving Wentzville Lake St. Louis O’Fallon St. Peters Dardenne Prairie Cottleville and St. Charles.

St. Louis city and St. Louis county by appointment.