Find a Mister Sparky near you!

areas our electricians service

  • Washington DC
  • Accokeek
  • Alexandria
  • Annapolis
  • Aquasco
  • Arlington
  • Beltsville
  • Bethesda
  • Bladensburg
  • Bowie
  • Brandywine
  • Brentwood
  • Bryans Road
  • Burke
  • Capital Heights
  • Cheltenham
  • Chevy Chase
  • Clinton
  • College Park
  • Crofton
  • District Heights
  • Dunkirk
  • Falls Church
  • Fort Washington
  • Franconia
  • Glenn Dale
  • Greenbelt
  • Groveton
  • Hillcrest Heights
  • Hughesville
  • Hyattsville
  • Hybla Valley
  • Indian Head
  • Kensington
  • La Plata
  • Lanham
  • Landover
  • Laurel
  • McLean
  • Mount Rainer
  • Mount Vernon
  • Potomac
  • Rose Hill Farms
  • Seven Corners
  • Silver Spring
  • Springfield
  • Suitland
  • Springfield
  • Takoma Park
  • Temple Hills
  • Upper Marlboro
  • Waldorf
  • Wheaton
  • White Plains

Find A Location Near You

Become a member of Mister Sparky's Maintenance Program

Maintenance Program

Every homes electrical system needs annual service, Our PowerClub maintenance agreement will help keep your home's electrical system running at its optimum performance levels.

Learn more

Customer Reviews of Mister Sparky

Customer Reviews

"What a pleasant surprise, the best electrical service ever!"

Read More Testimonials

Mister Sparky - Alexandria, VA

Our
Location

6310 Old Branch Ave
Temple Hills, MD 20748

Get Directions

Keep In Touch

Keep In
Touch

Mister Sparky on Facebook Follow Mister Sparky on Twitter Get an iPhone App for Mister Sparky
Get Our iPhone App

Customer Reviews of Mister Sparky

 

"What a pleasant surprise, the best electrical service ever!"

Read More Testimonials

Smoke Detectors

One of the most overlooked safety devices in your home is the smoke detector. There are two types of smoke detector systems available today:

  • The type that has smoke detector wiring that issues a signal to a monitored fire alarm system
  • The smoke alarm that generally issues a local audible and/or visual alarm from the detector itself

Most smoke detectors work either by optical detection or by physical process, while others use both detection methods to increase sensitivity to smoke. Smoke detector wiring can be powered by a central fire alarm system, which uses a battery backup, or, as is the case in many single family detached and multi-family homes, a smoke alarm is powered only by a single disposable battery.

Old Smoke Detectors can Fail

Death Caused by old smoke dector

Installation and placement
Smoke detectors are generally placed where they will do the most good. In the United States, most state and local laws regarding the required number and placement of smoke detectors are based upon standards established in the National Fire Prevention Association (NFPA 72) fire code. Laws governing the installation of smoke detectors vary from jurisdiction to jurisdiction. The United States requires smoke detectors on every inhabitable level, in attics that are accessible and within the vicinity of all bedrooms.

Battery Backup
Most residential smoke detectors run on 9-volt alkaline or carbon-zinc batteries. When these batteries run down, the smoke detector becomes inactive. When the battery is low most smoke detectors will signal with a chirping sound at regular intervals.

Some detectors are also being sold with a lithium battery that can run for about 7 to 10 years, though this might actually make it less likely for people to change batteries, since their replacement is needed so infrequently. By that time, the whole detector may need to be replaced. Though relatively expensive, user-replaceable 9-volt lithium batteries are also available.

Protecting Your Safety
If you have questions or concerns regarding smoke detector installation or repair in your home, contact the Mister Sparky team for assistance. Smoke detectors save lives, and at Mister Sparky we want to help ensure your safety.

 
202-234-4357

24/7

Emergency Electric Service in

Washington DC

Maryland &Virginia


Our Face Book Page Is loaded with electrical tips

Our Services
 

 

Surge protection is a means to protect circuits and lines from experiencing adverse effects due to spikes and overloads.

Water Heater Total Service

We repair & install both gas and electric water heaters

 

 

Surge protection is a means to protect circuits and lines from experiencing adverse effects due to spikes and overloads.

Sub Panels

Sub Panel WiringA sub panel is a separate panel that may be used because there isnít enough space in your existing main electrical panel.