A Southern MD, St Marys, Calvert & Charles County
Electrician & Electrical Contractor Since 1994


TDE Electric Inc. is a locally owned and operated full service residential, business and commercial electrical contractor.

We have been repairing, servicing, and installing residential, commercial and industrial customers with recessed lighting, heavy ups, whole house generators, wiring, panels, interior and exterior in St. Mary's County, Charles County and Southern Calvert County (Prince Frederick & South) since 1994.


About Us


My name is Terry Dollarton and I am the owner of TDE Electric. I am a St. Mary's county local, who after graduating from Leonardtown High School, went to a 5 year electrical apprenticeship school in Washington, DC. After graduating from the apprenticeship, I got my Masters and opened up our shop.

TDE Electric has been serving Southern Maryland with electrical contractor and electrician services since 1994. We are a family owned business that has been successful for 24 years. This happens by treating our customers with respect, honesty and doing a great, and thorough, job. Our company treats your home or business as if it were our own.


Briggs and Stratton Whole House Generator


Residential Services


Residential Panel Upgrades St Marys

  • Electrical Panel, Generators, Breakers & Transfer
  • Landscape Lighting and Wiring
  • Ceiling Fan Wiring and Installation
  • Exhaust & Attic Fans
  • Bath & Kitchen Fans & Lights
  • Room Accent & Recessed Lighting
  • Indoor & Outdoor GFI
  • Surge Protection
  • Code Corrections


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Commercial Services


St Marys Commercial Electrical Services

  • Panel & Sub-Panel
  • Troubleshooting
  • Office Building
  • Electrician Services
  • Parking Lot Lighting
  • Electric Service & Repair
  • Code Violation Correction
  • Security and Outdoor Lighting
  • Tenant Build Out
  • Restaurant Electrical Service
  • Base Buildings

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Service Areas:


Some of our many electrical installation services include: whole house generators in St Marys MD, whole house generators in Calvert County MD, bucket truck work in St Marys MD, bucket truck work in St Marys MD, bucket truck work in Calvert MD, commercial electrical construction in St Marys, commercial electrical construction in Calvert, residential electrical construction in St Marys, residential electrical construction in Calvert, hot tub wiring in St Marys, hot tub wiring in Calvert, heavy ups in St Marys, heavy ups in Calvert, high voltage hvac upgrades in St Marys, High Voltage HVAC Upgrades in Calvert, marine settings wiring in St Marys, Marine Settings in Calvert


Boothe Electrical Wiring Hollywood MD
Solar Panels So MD

Our Happy Customers’ Reviews:


Terry Dollarton is an excellent electrician. He is dependable and does excellent work. We have called him several times in previous years and were very pleased. Not too long after moving in to my house, he installed a stand-by home generator that automatically comes on (in seconds) when I lose power. It powers everything, even the apartment on the property. It is as if I don't lose power at all. It is amazing. Excellent work by Terry and I have been very pleased through the years. When I hear anyone mention they need an electrician, I always recommend TDE.

-- T. Edmondson, Facebook Review

Highest possible recommendation! After combing the web for Southern MD electricians, we found Terry of TDE for our hot tub electrical installation. He did an outstanding job at a very fair and reasonable rate. He was responsive and arrived early and reliably. He was undeterred by issues like rain and an unusual panel, and he cleaned up afterwards (even after i said there was no need to). My impression is that he truly appreciates the importance of reputation in a 'small town' community like ours - and he's right. I'm recommending him to everybody!

-- Cliff A.

We live in an area where the power goes out several times a year. I have a sleep machine to help me breathe, which needs power. Terry came out and installed a whole house generator. Now I sleep soundly worry free, we love it and him, great company, highly recommend.

-- Betty M.

Our electric bill was way too high, and our old fluorescent lights were burning out regularly. Terry recommended a SMECO Rebate Program that would pay us to change to LED lights. Best thing we have ever done, cured both problems.

-- Barba H.

Terry is very knowledgeable and has always done a great job for us when we’ve needed him. He hooked up our home generator several years ago as well as installed recessed lighting in our kitchen. He’s very professional and thorough.

-- M.F. Lowe, Facebook Review

As a property manager of a large complex, keeping things up and running is my number 1 job, we have used TDE since 1997, and they have never let us down.

-- Pat U.

I called on a Thursday to set up a service call, promptly as told, at 7:30am Mark knocked at my door, came in, and got straight to work, he explained everything he did and had me fixed up in an hour. Professional and happy, TDE is a pleasure to work with.

-- Chris H.

TDE came out and did our new kitchen remodel, Mark went over everything with my wife and made it come out even better than we had imagined. The new LED recessed lights are amazing. These guys are awesome.

-- Mike H.