HVAC Service in Maryland and Washington, DC

Michael Bonsby HVAC & Plumbing has been providing HVAC services to communities throughout Maryland and Washington, DC for over 20 years. Whether you need a new system installed or an older unit repaired, we are your go-to company for all your heating and cooling needs.

When you need HVAC service in the Montgomery County area, call Michael Bonsby HVAC & Plumbing first. Same-day service is available seven days a week whenever you have an emergency—just call 301-990-7970 or fill out an online contact form to get help now.

Our Heating and Air Conditioning Services

HVAC Installation

When you need a new heating and cooling system installed in your home, there’s only one name you need to know—Michael Bonsby HVAC & Plumbing. We are authorized dealers of Mitsubishi and American Standard and can install all types of HVAC systems for your year-round comfort, including:

We offer competitive rates and financing options with approved credit, as well as free estimates on all new installations. For more great savings, check out our coupons.

HVAC Repairs

There’s nothing worse than an air conditioner that quits on the hottest day of the summer or a heating system that leaves you out in the cold in the middle of winter. At Michael Bonsby HVAC & Plumbing, we provide repairs for any HVAC system of any make and model—including furnaces, air conditioners, and heat pumps. Call us 24/7 for planned or emergency HVAC repairs in the Montgomery County area!

HVAC Maintenance

We can help you get the most out of your HVAC system year-round with multiple options for HVAC service plans. Regular maintenance from our experienced technicians can help you extend the life of your heating and cooling systems and reduce your energy bills. Plus, we make sure you’re covered for emergency repairs or replacements even on the hottest days of summer and the coldest days of winter.

Indoor Air Quality Services

When you need indoor air quality services in Maryland or Washington, DC, call Michael Bonsby HVAC & Plumbing! The Environmental Protection Agency (EPA) estimates that the level of pollutants inside your home can be as much as 100 times higher than the air outside. We can help you address the indoor air quality in your home with:

Why Call Michael Bonsby HVAC & Plumbing?

  • Family owned and operated, local HVAC company
  • Complete customer satisfaction guarantee from start to finish
  • Trained, educated, and licensed HVAC technicians
  • Accurate quotes for time, materials, and equipment
  • Fully licensed, bonded, and insured HVAC service
  • Air Conditioning Contractors of America (ACCA) member
  • Featured HVAC provider on “This Old House”
  • 24-hour HVAC service—usually by the next day!
  • Special HVAC financing available with approved credit

If you are interested in learning more about our heating, air conditioning, and indoor air quality systems and services in Maryland and Washington, DC, contact us today!

Michael Bonsby HVAC & Plumbing services the following areas:

MARYLAND: Bethesda, Boyds, Chevy Chase, Clarksburg, Clarksville, Damascus, Darnestown, Derwood, Ellicott City, Gaithersburg, Germantown, Glenelg, Kensington, Laytonsville, Montgomery Village, Mt. Airy, North Bethesda, North Potomac, Olney, Potomac, Rockville, Silver Spring, Urbana


We provide HVAC service the following Zip codes:

20810, 20811, 20812, 20813, 20814, 20815, 20816, 20817, 20818, 20824, 20825, 20827, 20830, 20832,20837, 20838, 20839, 20841, 20847, 20848, 20849, 20850, 20851,20852, 20853, 20854, 20855, 20857, 20859, 20860, 20861, 20862, 20866, 20868, 20872, 20874, 20875, 20876, 20877, 20878, 20879, 20880, 20882, 20883, 20884, 20885, 20886, 20889, 20891, 20892, 20894, 20895, 20896, 20897, 20898, 20899, 20901, 20902, 20905, 20906, 20907, 20908, 20910, 20911, 20913, 20914, 20915, 20916, 20918, 20993, 20997

For all your HVAC needs, look to Michael Bonsby HVAC & Plumbing for comprehensive heating and cooling services—call or click today to learn more about:

Get Help Today! Same day service, 7 days a week 301-990-7970

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