Air Conditioning Installation & Replacement
No-Obligation, Free Estimates. New Installation Discount & Mass Save Program Options Available.
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Reliable AC Repair for Your Comfort
Top Notch HVAC Company has been Norfolk County, and Metro West’s go-to partner for heating and air conditioning services since 2014, bringing over 35 years of industry experience to every installation and replacement. We install and replace central AC systems, heat pumps, and ductless mini-splits, and we can recommend energy-efficient options that fit your home.
Our AC Installation & Replacement Services
What’s Included
- We evaluate your home’s layout and energy needs to recommend the right system for your space.
- We help you select the right equipment and explain your options clearly.
- We recover refrigerant as required and remove your old equipment for proper disposal.
- We install your new system according to manufacturer requirements, including proper refrigerant charging and any needed connection adjustments.
- We review local code requirements with you before the job starts and explain the manufacturer's warranty coverage.
How We Choose The Right AC For Your Home
- We do a full in-home assessment and perform accurate sizing and load calculations so the system matches your home’s layout and cooling needs.
- We inspect your ductwork when it applies and explain any airflow or duct improvements that may help your comfort and efficiency.
- We help you compare equipment options so you can choose the right balance of comfort, efficiency, and budget. We can explain SEER ratings and walk you through what efficiency means for comfort and long-term operating costs.
- We review practical installation constraints like condenser placement, line set length, electrical service, noise, and aesthetics.
- We discuss system types and tradeoffs, including central AC, heat pumps, ductless mini-splits, smart thermostat integration, and zoning options.
- Estimate lifespan, maintenance needs, and projected energy savings so you can weigh upfront cost vs. ongoing savings.
Repair Vs. Replace: A Clear Checklist To Help You Decide
Quick Checklist We Use During A Free Assessment
Age
Repair history
Refrigerant type
Energy use
Comfort problems
Repair cost rule of thumb
Projected savings:
We will provide clear, side-by-side estimates for repair and replacement so you can make an informed decision with no pressure.
$200 Off New Installations
Enjoy Your Discount Today!
Client Reviews
Posted on Davra Clayton17. January, 2026 Prompt and knowledgeablePosted on Brooks Zug15. January, 2026 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.Posted on Michael Baldner5. January, 2026 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.Posted on Ravi Uppalapati29. December, 2025 Thank you for all your prompt service. James was amazing,respectful and clear communication. Excellent customer service and communicationPosted on Ellen Barry18. December, 2025 Vinny and Sean were great. The new furnace installation was efficient, fair price and working well.
How do I know if I need a new AC system?
If your HVAC system is over 10 to 15 years old, needs frequent repairs, or struggles to cool your home evenly, replacement may be the most cost-effective option for your home or business. Newer systems provide better comfort, reduced noise, and improved efficiency. When considering installing a new air conditioning in Medfield, MA or the surrounding areas, our experts can assess your equipment and recommend whether repair or replacement is the best option.
What types of AC units do you service and install?
Can you help improve indoor air quality during the cooling season?
What should I do if my AC is leaking water?
How do smart thermostats help with cooling efficiency?
Do you offer maintenance plans for AC systems?
How long does an air conditioner installation take?
Can you help reduce hot and cold spots in my home?
Do you work with energy-efficient AC options?
What warranties do you offer on new AC systems?
We offer manufacturer warranties on new equipment and stand behind our workmanship with service guarantees. Our team explains all coverage details before installation so you have complete peace of mind. This extra protection is just part of the reason we’re the top HVAC company servicing air conditioning Medfield, MA homeowners know and love.
Schedule Your Free AC Estimate With Top Notch HVAC Company Today
Ready to upgrade your comfort without the guesswork? Top Notch HVAC makes AC installation and replacement simple with clear, line-item pricing, proper Manual J sizing, permit handling, and a clean, professional install backed by workmanship guarantees. Visit Top Notch HVAC Company to schedule your free estimate and get a side-by-side recommendation built for your home, your budget, and Massachusetts’ climate. Call today at 508-254-2517.












