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Michael Bonsby Heating & Air Conditioning LLC
Electrical Baseboard or Wall Heater - Repair, Excavation - Major Grading or Resloping, Central A/C - Install,
About us
With over two decades of HVAC industry experience, Michael Bonsby Heating & Air Conditioning, located in the Montgomery County Air Park in Gaithersburg, Maryland, provides homes and business owners throughout Montgomery County, MD and Washington, DC with top quality heating and air conditioning services for any HVAC system. Additional phone number - (800) 836-2373.
Business highlights
Emergency services offered
19 years of experience
Services we offer
Custom Ductwork, Duct Cleaning, Heating & air conditioning installation (Custom homes, Heating & air conditioning replacement, Plumbing & Drain cleaning, additions & renovations) Heating & air conditioning repair & service, gas/electric/oil boiler installation & replacement., heat pumps, indoor air quality, mitsubishi ductless systems, null
Amenities
Emergency Services
Yes
Free Estimates
Yes
Accepted Payment Methods
- CreditCard
Reviews
4.798 Reviews
| Number of Stars | Image of Distribution | Number of Ratings |
|---|---|---|
| 86% | ||
| 7% | ||
| 0% | ||
| 1% | ||
| 6% |
Showing 1-25 of 98 reviews
Alexander K.
Jul 2025
Very tricky. I paid 1400 for 1 meter wire extension and 1 electrical outlet. Never with this company any more
MIchelle S.
Mar 2025
Despite providing details to the scheduler (who claimed that those details were being placed in a note for the technician to review prior to our appointment and that this would allow the technician to have all supplies on hand and able to perform the work day of), our technician arrived (over a day late), stated he had not reviewed any notes, proceeded to attempt to sell us on numerous products that we had NOT inquired about and told us that he was NOT able to resolve on ongoing issue. In fact, he stated that this company was not able to perform the task at hand at all (repair or replace a furnace exhaust flue/outlet). Appointment was for a 8-12p on Monday. I received a message at 3:30 on Monday that they were cancelling. My husband then had to take the following day off of work. And all of that for nothing, because then we were told they could not fix our issue. And then they still charged us $105.
Andrew K.
Dec 2024
On 9/12/2024 Michael Bonsby did a hot water tank flush for us. At that time they took a water sample for a water quality test. We have well water, and have noticed tastes in it, so it is important that we know if there are water quality issues. After not hearing back about the results of the water quality test after a month, I called Bonsby back. They said that somehow they had lost either the sample or the test results, so they came again on 10/21/2024 to take another water sample. After not hearing from them about the second test after a month and a half, I sent them a text on 12/10/2024, but got no response. I called them on 12/11, 12/12, and 12/13/2024 to ask what happened to the test. Each time I was told someone would get back to me, but they haven't. I really can't understand why they can't be bothered to return my calls or text me about the results of this test, especially since it has been three months, and they fouled up the first try.
Matthew S.
Nov 2024
James and Evan showed up nice and early, listened to what we were hoping to accomplish and got right to work. They were both very friendly and professional. Any mess created by their work they cleaned right up. The job was completed to our full satisfaction. They even took the time to address a couple other minor issues unrelated to the job at hand. We look forward to seeing James and Evan for any future electrical work. Thanks very much, guys!
Ben C.
Oct 2024
Their electrical team was very professional, friendly and knew their codes.
Adam H.
Aug 2023
Very knowledgeable and easy to work with.
Jonathan T.
Jun 2023
Job was much bigger than I expect but plumber (Anthony William) explains what actually cause the leak. His performance was very knowledgeable and taking his time to get job correctly. As the result now the drainpipe working no more leaking great work Anthony I was impressed with your performance.
Xintian L.
Apr 2023
The job was not done.
Susan K.
Jan 2023
We are really disappointed in the process for getting an estimate on a heat pump. The rep came out on a Monday. We were explicit that we wanted a model eligible for the new tax credit. He said he would send us an estimate by the end of the week. When we didn't receive an estimate, we contacted the rep. We finally got the estimate almost a week late -- and none of the 7 models in the estimate were eligible for the tax rebate. We are really disappointed that the rep wasn't forthright with us. We would have been willing to discuss when they might have the newer models in stock. Instead, this experience was a huge waste of our time due to poor communication.
Charles G.
Sep 2021
I obtained six estimates for which four companies proposed a reasonable price. Three of these four companies made a favorable sales impression but the one that stood out from the others was David Lux of Michael Bonsby Heating and Air Conditioning LLC. Mr. Lux spent the most time in answering my questions, more than any of the representatives of the other companies and he was quick to followup on additional questions I had at a later date. Even after I signed the contract, had the system installed and paid in full Mr. Lux continued to respond promptly to my inquiries. The technicians who installed the system did a good job and spent a lot of time showing me how to use the newly installed wifi thermostat. I was very please with the work of this company and would definitely consider using them again in the future.
Jeannie D.
May 2021
Flawless, professional and attention to detail.
Response from Michael Bonsby Heating & Air Conditioning LLC
"Thank you [Member Name Removed]! It was a pleasure working with you on your Install."
Kristian H.
Apr 2021
We had several estimates. bonsby was by far the most knowledgeable, professional, and affordable. They helped switch a gas furnace to electric heat pump cheaper than a new furnace! Quality work, redid some ductwork.
Response from Michael Bonsby Heating & Air Conditioning LLC
"We really appreciate your review. It truly means a lot to our HVAC team!!"
Lee M.
Apr 2021
Super. We've used Bonsby several times -- both here and our prior house. We've always been very pleased with them.
Response from Michael Bonsby Heating & Air Conditioning LLC
"Thank you so much! We are so happy we have been able to help you with all of your HVAC needs."
Lisa F.
Apr 2021
Great work!
Response from Michael Bonsby Heating & Air Conditioning LLC
"Thank you [Member Name Removed]! We appreciate your review."
Lawrence K.
Feb 2021
it went great, they came quickly found the problem and fixed it
Response from Michael Bonsby Heating & Air Conditioning LLC
"Hi [Member Name Removed]! I'm happy to hear our Plumbing Department was able to help you and resolve the issue. Thank you for reviewing our company!"
Tamar R.
Feb 2021
The job was a little complicated as a crane was required to lift part of the machinery onto the roof. A permit was required to block the street during the crane process. It was the middle of summer so time was of the essence. Everything was done promptly and professionally. We would hire Michael Bornsby again.
Response from Michael Bonsby Heating & Air Conditioning LLC
"Thank you so much for your kind words [Member Name Removed]. We really appreciate you taking the time out to share your experience with us."
Meg O.
Feb 2021
They were fantastic. Explained my issue, gave me a price upfront and let me see all the issues on their camera snake. Protected everything with drop cloths & shoe protectors for the floors then put everything together perfectly. Would absolutely hire again!
Response from Michael Bonsby Heating & Air Conditioning LLC
"[Member Name Removed] Thank you so much! We truly appreciate the compliment!"
Carlos C.
Feb 2021
It went well. They are very responsive. Thanks.
Response from Michael Bonsby Heating & Air Conditioning LLC
"Thank you [Member Name Removed] for reviewing our company! We really appreciate it."
Louise K.
Feb 2021
Wonderfully well. They showed up on time, got it done, were transparent about the problem and the price very reasonable. It's why I've got a maintenance contract with them.
Response from Michael Bonsby Heating & Air Conditioning LLC
"Thank you so much [Member Name Removed]! Our Plumbing and HVAC Teams really appreciate your kind words!"
Garrett D.
Jan 2021
Perfectly. The work was completed well and within the time span given at the outset. I've had no problems since the installation.
Response from Michael Bonsby Heating & Air Conditioning LLC
"Thank you so much for your review! We really appreciate it."
Beth H.
Jan 2021
Excellent, as always!
Response from Michael Bonsby Heating & Air Conditioning LLC
"Thank you so much [Member Name Removed]! We really appreciate the compliment."
Ben K.
Jan 2021
Great. A very professional service.
Response from Michael Bonsby Heating & Air Conditioning LLC
"Mr. [Member Name Removed], we really appreciate your review. It means a lot to our team!"
Brinkley T.
Jan 2021
Great. They are communicative, prompt, friendly and effective. Wonderful service every time.
Response from Michael Bonsby Heating & Air Conditioning LLC
"[Member Name Removed], you are so kind! Thank you so much for your review of Michael Bonsby Services!!"
Amber S.
Jan 2021
I have used Michael Bonsby for many projects and will continue to use and recommend them for any plumbing projects. The most recent project was replacing my water heater and installing a whole house water filtration system. The technician was on time, polite, and cleaned up after themselves.
Response from Michael Bonsby Heating & Air Conditioning LLC
"Thank you [Member Name Removed] for sharing your review! We really appreciate it."
Bob H.
Jan 2021
It went perfect as planned. Very clean from start to finish Their crew worked hard ever day, where on time and left inside and out spotless . Completed the the project on schedule , and went over the unit and controls with me. Their foreman (Andy) kept me informed , and called after a week to check on how the units where running Couldn’t ask for a better co .. can’t say enough .
Response from Michael Bonsby Heating & Air Conditioning LLC
"Thank you so much Mr. [Member Name Removed] for your review. We will share this with our crew to let them know to keep up the outstanding work!"
Licensing
State Contractor License Requirements
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FAQ
Michael Bonsby Heating & Air Conditioning LLC is currently rated 4.7 overall out of 5.
Michael Bonsby Heating & Air Conditioning LLC accepts the following forms of payment: CreditCard
Yes, Michael Bonsby Heating & Air Conditioning LLC offers free project estimates.
No, Michael Bonsby Heating & Air Conditioning LLC does not offer eco-friendly accreditations.
No, Michael Bonsby Heating & Air Conditioning LLC does not offer a senior discount.
Yes, Michael Bonsby Heating & Air Conditioning LLC offers emergency services.
No, Michael Bonsby Heating & Air Conditioning LLC does not offer warranties.