Verified record
Girvan Mechanical is an HVAC service that says on its website it focuses on ductless splits, complete systems, preventative maintenance, ductwork and fog systems. It offers free estimates. In a recent review, a customer who had their AC and air handler replaced wrote that Dennis communicated well throughout the whole process, was super punctual, and that the pricing was really competitive. In a 2026 review, a customer wrote that Dennis and team had replaced a gas forced air furnace as well as a gas water heater, and that Dennis showed up and completed the job ahead of schedule on both occasions. In a 2025 review, a customer wrote that Dennis and his team had replaced their central A/C, completing the replacement faster than they expected, with transparent and very competitive pricing. In a 2023 review, a customer wrote that Dennis spent additional time diagnosing the problem, and that it was a quick fix with a replacement part that got their heat working. In a separate 2023 review, a customer wrote that they were pleased with their new split A/C units and that the work was done in a timely manner. In a 2022 review, a customer wrote that they woke up on Christmas morning with no heat and below-freezing temps outside, and that Dennis and Ryan came out that day and got them back up and running. A 2024 Google review read "Teach your drivers to not have road rage." A 2022 review read "I would not use him if he was the last HVAC company in Massachusetts."
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Girvan Mechanical. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$5,000 – $11,400
Typical HVAC project around $8,200
Awesome experience getting my AC and air handler replaced. Dennis was great to work with—he communicated well throughout the whole process and was super punctual. The pricing was really competitive too, which was a huge plus. I highly recommend giving Dennis a call if you need HVAC work done!
Highly recommend Girvan Mechanical. Recently had Dennis and team replace a gas forced air furnace as well as a gas water heater. Both services were preformed timely and reasonably priced. Communication was great and Dennis showed up and completed the job ahead of schedule on both occasions.
I recently had my central A/C replaced by Dennis and his team and had a top notch experience. From start to finish, they were extremely quick, fairly priced, and incredibly responsive—which was the most important factor for me. Their team worked with remarkable efficiency, completing the replacement faster than I ever expected without cutting any corners. The pricing was transparent and very competitive, making the whole process stress-free. What truly stood out was their responsiveness; they answered every question promptly and kept me updated throughout the job. If you’re looking for HVAC service, give them a call. Very professional and reliable. Highly recommend!
This HVAC company is amazing. The team helped me fix my AC in Naples Florida remotely. I hope they move to Naples soon.
Teach your drivers to not have road rage. Absolutely not okay, your driver sat and tried to fight with me and I ignored them. But then saw their bumper sticker. Absolutely would give 0 stars if I could
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2 changes recorded — last scanned Sep 26, 2026.
Transparent diagnostics5.0
Broad plumbing and HVAC range5.0
Repeat, years-long customers5.0
Water heater and boiler installs5.0
Two AC technicians out within a few hours5.0
EV charger installs4.6
Navien expertise4.7