Smoke & CO Detector Installation in Maryland, DC & Northern Virginia

Working smoke and carbon monoxide alarms are your first warning when something goes wrong, especially at night. Wadi Electric LLC installs, replaces, and interconnects smoke and CO alarms so they all sound together. We are an electrical service, construction, and power-solutions company serving homeowners in Maryland, DC, and Northern Virginia, along with landlords and light commercial properties.

Important: A hardwired smoke alarm should be replaced with another hardwired alarm, not a battery-only unit. Requirements vary by jurisdiction, and we install to local code.

Don’t Sit in the Dark — Call Wadi!

What we provide

  • New hardwired, interconnected smoke alarms

  • Replacement of old or expired alarms (check the date on the back; many should be replaced around the 10-year mark)

  • Combination smoke/CO alarms

  • CO alarms outside sleeping areas in homes with fuel-burning appliances or an attached garage

  • Hardwired alarms with battery backup, or sealed 10-year battery units where allowed

  • Fixes for chirping, nuisance alarms, and alarms that won’t interconnect

  • New alarms for renovations, finished basements, and additions

  • Pre-sale, rental, and multi-unit alarm upgrades for landlords and property managers

Areas we serve

Maryland

  • Howard County

  • Baltimore County

  • Baltimore City

  • Harford County

  • Anne Arundel County

  • Montgomery County

  • Frederick County

  • Prince George’s County

  • Charles County

Washington DC

All DC neighborhoods

Northern Virginia

Fairfax County

Arlington County

City of Alexandria

Loudoun County

Prince William County

How to get started

Call: 240-653-6727

Text: 240-653-6727

Book Estimate (FaceTime, WhatsApp, or onsite): https://www.wadielectric.com/booking/

Upload Photos: info@wadielectric.com

Virtual (FaceTime/WhatsApp) is an option for estimates. Send photos of your existing alarms (and the date label, if you can reach it safely), plus how many floors and bedrooms the home has.