Verified record
A failed central air conditioner and an old mini-split are jobs customers have brought to St John Brothers HVAC. Google lists a 5-star average from 40 ratings. In a May 2026 review, a customer said Jason solved their issues quickly and professionally and that they would trust him with future HVAC needs. In an August 2024 Google review, a customer described Jason helping replace an old mini-split and servicing two others. They said he communicated promptly, arrived as scheduled and explained what he was doing and why. They also praised his attention to small details and said he got the work done in good time. A customer writing in August 2023 said their central air stopped working in summer, just before family were due to visit. Jason returned their call and arranged an appointment for the following day. According to the customer, he quickly identified the problem, made the necessary repairs and charged a final invoice they considered reasonable. In July 2025, another customer praised Jason's equipment advice and timely email replies. A June 2021 customer described their first service visit: Jason arrived on the scheduled date, a little early, serviced the central air conditioner and walked them through everything he did.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from St John Brothers HVAC. 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
Jason was FANTASTIC! VERY KNOWLEDGABLE AND EXTREMELY PERSONABLE. Solved our issues quickly and professionally. We will trust him for all our HVAC needs in the future.
Absolutely the best equipment, best service for the products, best customer service too. Jason is truly an expert in his field, he offers suggestions to keep your equipment in top working order- AND emails get answered in a timely manner. PERFECT!
Jason helped us with replacement of an old mini split, and he serviced two others. We thoroughly enjoyed working with Jason - he always communicated promptly, and his work is outstanding. He pays attention to the smallest of details, and doesn't mind explaining and teaching the curious customer about what he is doing and why. He was quite reliable, showing up as scheduled and getting things done in good time. We highly recommend him!
My central air stopped working in the dead of summer and just before my family were due to visit for a vacation. I called Jason and he got right back to me and set up an appointment the following day. He quickly identified the issue and made the necessary repairs. Jason was very kind, friendly and incredibly meticulous. His work was excellent and he went above and beyond to make sure that everything was done to the highest standard. The final invoice was very reasonable. I will be using St John Brothers for all of my heating and cooling needs in the future! Thank you!! A++
I just used St. John Brothers for the very first time. Jason was very professional and friendly. I appreciated that he arrived on time (even a little early) and on the date we scheduled. He serviced my central air conditioner and walked me through everything he did. I will definitely have him come back in the future to continue to service my air conditioner as well as my furnace. The whole experience from start to finish was great! I definitely recommend Jason!
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2 changes recorded — last scanned Oct 1, 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