Plumbing, Well Pumps, Water Treatment, Heating & Cooling & More

Take a look at our 5 star reviews!

five stars

Google Review by Michael June 2023

Excellent experience! Lost water on Monday, received a call back within an hour with a commitment to get out the following day. Received a call first thing Tues. Scheduled 9-12. Showed up at 9:30. Fast diagnosis, clear recommendation, parts on hand, up and running in no time.

Google Review by Jamie May 2023

The tech and apprentice were so professional and quick to respond to our blocked pipe on a Saturday. They were at our house within two hours! They communicated every step of the way and had the problem resolved quickly and efficiently. We’re very appreciative of the quick resolution, especially on a weekend. Thank you both again! I would certainly use this company again.


First Class Mechanical has been providing top quality services at reasonable pricing for over 20 years to residential & commercial customers throughout the Baltimore Maryland area including Carroll County, Howard County, Frederick County, Baltimore County, Baltimore City and surrounding areas.

Licensed plumbers, Master Gasfitters & HVAC contractors provide a full range of plumbing services (drain clearing, water & sewer line repairs, toilet, faucet, sink replacement & more), emergency well pump replacements, water treatment & water conditioning services, water testing, heating & cooling system repairs & replacements, water heater & tankless water heater repairs & replacements, farm services and much more.

Carroll’s Best 2023 Honorable Mentions in 3 Categories

THANK YOU!!!!❤️ 🎩Thank you for voting for us! We are proud to announce th…

Read More

First Class Water Treatment Installation

Water Treatment done the First Class way!🎩Check out this beautiful acid neutr…

Read More

First Class Oil Furnace Installation

🔥Our HVAC team recently replaced an oil fired furnace! When your HVAC equipme…

Read More