
Serving Owings Mills, MD and surrounding areas
Approved (Corporate)
In business since 1989
Free estimates
Emergency services offered
"They did a good job."





+4


Serving Owings Mills, MD and surrounding areas
Approved (Corporate)
In business since 1989
Free estimates
Emergency services offered
"They did a good job."





+4

Serving Owings Mills, MD and surrounding areas
Approved
Super Service Award Winner
Free estimates
Emergency services offered
Warranties offered
"He was very professional, did a very neat job, cleaned after the job was done. I was very satisfied with the job."





+20

Serving Owings Mills, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2009
Emergency services offered
Warranties offered
"Great. Doug answered our inquiry promptly and fixed our issue the next day for significantly less than the first quote."





+2

Serving Owings Mills, MD and surrounding areas
Approved
In business since 1978
Free estimates
Warranties offered
"Very professional. Promt sevice"



Serving Owings Mills, MD and surrounding areas
Approved
In business since 2006
Free estimates
Emergency services offered
"Great customer service. Prompt return call. Courteous. "





+6

Serving Owings Mills, MD and surrounding areas
Approved (Corporate)
In business since 1945
Free estimates
Emergency services offered
"While the technician who ultimately serviced my system was efficient and informative, the overall experience was unacceptable. It took nearly 18 hours and three separate appointments to replace a single fuse under a warranty installed on November 4, 2025. The dispatch, scheduling, and supervisory staff were dismissive and unresponsive, demonstrating a complete lack of customer care. This was, without question, the worst customer service experience I have encountered. Additionally, the failure itself appears to stem from incomplete installation guidance, as I was not properly advised on potential system vulnerabilities (such as power surges). While I appreciate the technician?s work, the breakdown in communication and service at the management level makes it difficult to recommend this company."


Serving Owings Mills, MD and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"I would strongly recommend against using this company. Michael Bonsby sold me an HVAC system that repeatedly malfunctioned between its installation in August 2022 and removal in October 2025. Over those 3 years, Bonsby had ample opportunities to identify and correct the defect in the system, but it failed to do so. Nor did Bonsby ever offer to replace the system. In fall 2025, after years of frustration, I requested that Bonsby refund my purchase price for the defective system. Bonsby has refused and, in doing so, made arguments that are materially inaccurate as to the facts of the matter and applicable law. "





+3

Serving Owings Mills, MD and surrounding areas
Approved (Corporate)
In business since 1982
Free estimates
Emergency services offered
"Anthony Flint did the service for my AC. He was very efficient and l was very pleased with the service."


Serving Owings Mills, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2000
Free estimates
Warranties offered
"Great and Professional Service. Loved the new Carrier Heater that was installed"



Serving Owings Mills, MD and surrounding areas
Approved
In business since 1992
Free estimates
Emergency services offered
"I've been a Constellation Home customer for years, and I'd like to share my honest experience. If you're not in a hurry and don't mind waiting for service, this company might be fine. But if you need timely repairs, I strongly advise you to think twice before purchasing their service plan. My air conditioner broke on June 20. A technician came out the next day, June 21, and confirmed the compressor needed replacement. The part was ordered the same day, and I was told it would arrive by June 25. Since then, I've called daily. Each time, the receptionist tells me, "It's coming today." I've repeatedly asked to speak with a parts manager and was promised a callback--yet I only received one call, on June 27. As of today, July 2, the issue is still unresolved. Meanwhile, my elderly parents have been living in extreme heat during a heatwave. Please think carefully before signing up with this company. If you expect timely service, this may not be the right choice. I will be sharing this ex"





+2
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