- 24/7 Emergency HVAC Service
- Plumbing Services
- Trusted for Over 20 Years!
- Full-Service Heating & AC
- Free Replacement Estimates
- Eco-Friendly Options
- Flexible Maintenance Plans
- Certified HVAC Technicians
- Servicing All Makes & Models
Do you need to schedule air conditioning repair or a full system replacement? You can rely on Michael Bonsby Heating & Air Conditioning!
Get InfoWe offer drain cleaning, plumbing repairs, kitchen plumbing, and more. If you have a plumbing repair issue, let us know today!
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Get SavingsHeating, Air Conditioning & Plumbing in Gaithersburg, MD
Over 20 Years of HVAC Experience in Maryland & Washington, DC
Why Call Michael Bonsby Heating & Air Conditioning for HVAC Services?
- We are family-owned and -operated – Our plumbing and HVAC company in Gaithersburg is fully licensed, bonded, and insured to take care of your heating, air conditioning, and plumbing needs.
- Our quotes are tough to beat – We provide detailed and accurate quotes for time, materials, and equipment.
- We have a standing reputation in the HVAC industry – We are a member of Air Conditioning Contractors of America (ACCA) and have been featured as an HVAC provider on “This Old House.”
- We offer 24/7 HVAC service – If you have an HVAC emergency, we’ll be there ASAP!
- We offer special HVAC financing – Our financing options are available to help guarantee complete customer satisfaction from start to finish.
If you are interested in learning more about our heating, air conditioning, plumbing, and indoor air quality systems and services, contact our HVAC company in Gaithersburg today!

HVAC & Plumbing Service Contracts
Want to ensure you’re always at the top of the list when you need HVAC and plumbing services?
Sign up for an HVAC service contract with Michael Bonsby Heating & Air Conditioning! Our HVAC service contracts will guarantee you priority service on the hottest and coldest days of the year!
Our heating and air conditioning service contract comes with a number of benefits that go above and beyond normal levels of service for your HVAC systems. We help service the following systems:
- Air Conditioners
- Furnaces
- Heat Pumps
- Ductless Heating Systems
- Air Cleaners
- Humidifiers
- Programmable Thermostats
- Carbon Monoxide Detectors
- And More!
For more information about our heating and air conditioning services in Gaithersburg, call us today at 240-342-6910!

HVAC Services Air Conditioners Furnaces |
Heat Pumps
No matter what you use to keep your home comfortable throughout the year, the experts at Michael Bonsby Heating & Air Conditioning will make sure it takes care of you. Our trained and certified HVAC contractors can service any type of HVAC equipment!
We provide cooling and heating repair, maintenance, and installation services in Gaithersburg for:
Air Conditioners – Some of the most popular cooling systems available, air conditioners pull heat out of your home to cool the air. Michael Bonsby Heating & Air Conditioning can install and repair any make or model of air conditioner to keep you cool all summer long.
Furnaces – Gas or oil furnaces are some of the most efficient types of heating systems available and will keep your home warm even on the coldest days. For furnace repair, replacement, or maintenance in Maryland and Washington, DC, call Michael Bonsby Heating & Air Conditioning!
Heat Pumps – Since they don’t burn fuel to create heat, heat pumps are an extremely energy-efficient HVAC system. Best of all, they can provide both cooling in the summer and heating in the winter! The HVAC technicians at Michael Bonsby Heating & Air Conditioning are fully trained and certified to work on any type of heat pump, so if you need installation, repair, replacement, or maintenance, call us today!
We also service home plumbing systems!