Verified record
A furnace motor that would not start turned out to have a disconnected wire, according to a customer’s April 2021 Google review of Knapp Home & Heating Maintenance. The customer said Don found the problem after a few minutes of investigation, rather than selling an unnecessary replacement motor, and praised his honesty and explanation of potential furnace issues. Other customers writing in 2021 described boiler installation and furnace maintenance. One January reviewer said Donny had installed a new boiler system and had been cleaning their furnace for 18 years. Another said Don serviced two units and praised his punctuality, neatness and thoroughness. A June 2022 reviewer also recommended the business, describing Donny as knowledgeable and reliable. Google lists a 4.9-star average from 16 ratings.
I am very satisfied with Knapp Home & Heating Maintenance! Donny is knowledgeable (many years of experience), reliable, friendly and very professional. I highly recommend Knapp Home & Heating Maintenance! Thank you, once again, for a great experience!!
Don did a great job servicing my home furnace, and was descriptive about potential issues it could have. He showed me an issue with the motor not kicking on and rather than try to sell me a new motor, he tinkered with it for a few minutes and discovered a disconnected wire rather than give up and sell me an unnecessary motor. I respect honesty above all else in service, and Don delivers. He's definitely the guy I'll call when I need heating service again.
Don sets the standard! He is everything you would need in a contractor these days when many others fall short. The communication and work was done to complete satisfaction with many aspects of the job where he went above and beyond expectations. A+
Donny is freindly very professional and reliable. He installed a new boiler system and has been cleaning our furnace since we bought our house 18 years ago. I would highly recommend him for your heating maintenance.
Don was great! He was prompt, neat, thorough, and professional. He came and serviced two units for me. I will definitely be using him again for all of our home furnace needs.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Knapp Home & Heating Maintenance. 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
Specializes in
Languages
3 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
Bathroom fixture installs4.0