HVAC Testing & Preventative Maintenance

Serving Norfolk County and Metro West

24/7 Emergency Service Available
Same-Day, No-Obligation, Free Estimates.
New Installation Discount & Mass Save Program Options Available.
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Reliable HVAC Testing for Your Home Comfort

At Top Notch HVAC Company, we’re dedicated to keeping your heating and cooling systems running smoothly. Our HVAC testing services help find potential problems, improve efficiency, and ensure your comfort all year long. With over 35 years in the business, we’ve developed the skills to provide Norfolk County and Metro West residents with thorough and accurate HVAC checks. Our skilled technicians use modern tools to check every part of your system, from how air moves to how much energy it uses.

As a family-owned business since 2014, we know how important trust is. That’s why we offer fair prices, same-day quotes, and free consultations with no strings attached. We don’t work on commission; we just want to give you honest advice and affordable solutions. If you’re worried about how well your system works, the quality of your indoor air, or safety issues, our complete HVAC testing services can help. Contact us today to book your HVAC test and feel good knowing your system is in good shape.

Why Choose Top Notch HVAC Company

Carbon Monoxide Testing

Your family’s safety comes first. We do careful carbon monoxide testing to find any possible leaks in your heating system. Our tools can spot even tiny amounts of this gas that you can’t see or smell, keeping your home safe.

HVAC Test and Balance

Good air balance is key for your HVAC system to work well and keep you comfortable. We make sure air spreads evenly in your home, getting rid of hot and cold spots. We adjust parts to improve airflow, making your home more comfortable and energy-efficient.

HVAC System Evaluation

Our HVAC evaluations do more than basic tests. We look at how well your system works overall, how much energy it uses, and if it’s right for your home. This helps us find ways to make it better, suggest upgrades, and lower your energy bills while making your home more comfortable.

$200 Off New Installations

Upgrade your home’s comfort with Top Notch HVAC Company. Save $200 on any new HVAC installation in Medfield, MA.

Enjoy Your Discount Today!

Not valid with any other offers or promotions. Restrictions apply. Must mention this coupon at the time of scheduling.

$400 Off System Replacement

Get $400 off when you replace your entire heating and cooling system with Top Notch HVAC Company.

Enjoy Your Discount Today!

Not valid with any other offers or promotions. Restrictions apply. Must mention this coupon at the time of scheduling.

Client Reviews

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Davra Clayton profile picture
Davra Clayton
17. January, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Prompt and knowledgeable
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Brooks Zug profile picture
Brooks Zug
15. January, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Phil has always displayed deep knowledge of HVAC systems, and, in addition, he can explain things in a way that is understandable even to an ordinary homeowner.
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Michael Baldner profile picture
Michael Baldner
5. January, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Top Notch is a life saver - figuratively and literally. I had them come out as a second opinion to another local company that we previously used. The previous company came in and gave a bunch of highly-priced options to "fix" an issue they never even diagnosed. Our gas meter was being replaced unexpectedly, so the other company could not look at anything and instead of coming back later, they guessed on what was wrong based on the system codes that were showing. They basically scared my wife into doing costly repairs, saying the system would break if they didn't fix it. We reached out to Top Notch for that 2nd opinion and they came out right away. The first technician, Vinny, came in very professional and nice, and looked through everything on the system. Nothing stood out that needed repairs and completed a system maintenance and clean up. Vinny checked everything - and upon his review he found that our gas vent pipe (that the previous company installed) had disconnected inside the basement. There was basically carbon monoxide being dumped into our house - who knows for how long. You would think the previous company would have caught this in their diagnoses - but further nailed down that a 2nd opinion was needed. This was extremely dangerous and really thankful that Vinny found this out during his inspection of the system. Goes to show how thorough he was when going through everything. After Vinny left, we still received the system code on our thermostat. We called Top Notch again and they sent someone out right away. This time Aiden came over, who was also very professional and nice. He spent about 2 hours going through everything again and determined that our gas pressure was running high. He adjusted the pressure and went on his way. Top Notch did not charge me for this 2nd visit by their team - which was appreciated. Unfortunately we got the system code on our thermostat once again, and called Top Notch. Once more, they sent someone out right away. This time Sergei arrived and just like the other, was very professional and nice. He went through and saw the gas pressure was still running high and adjusted further. Spent some additional time just checking everything and making sure we were all set. He felt confident that the issue should be set at this point. Since the last visit, we have not had any issues with the system. We really appreciated the effort and time that Top Notch put into the care of our system. And the thoroughness of their inspections really did save us from something that could have been catastrophic with CO2 running into our home. Thank you again Vinny for finding and fixing this. I would not hesitate to use Top Notch on any future work in our house. What we were told were thousands of dollars worth of repairs (or even a new system) that were needed turned out to be a couple hundred dollars worth. We thank Top Notch for everything they did for us.
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Ravi Uppalapati profile picture
Ravi Uppalapati
29. December, 2025
Google star 1Google star 2Google star 3Google star 4Google star 5
Thank you for all your prompt service. James was amazing,respectful and clear communication. Excellent customer service and communication
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Ellen Barry profile picture
Ellen Barry
18. December, 2025
Google star 1Google star 2Google star 3Google star 4Google star 5
Vinny and Sean were great. The new furnace installation was efficient, fair price and working well.