UPDATE 12/7/25: $26K Custom Comfort HVAC system performance update --- We've had the HVAC system for about 8 months and are now getting into real cold winter temps. The first floor and basement are ducted. Each of the 2 bedrooms on the 2nd floor has a ceiling mounted mini split.
We are deeply disappointed with the Custom Comfort mini splits installed by Endless Energy. They perform VERY poorly at sensing and responding to temperature changes based on specified comfort settings. The temperatures fluctuate wildly and differently between the 2 units, to the point we've had the technicians inspect the units more than once, but they are not capable of resolving the issue. So we keep playing an arbitrary game of raising and lowering the temp setting, hoping they stabilize.
Further, the unit in our main bedroom frequently makes fluttering and loud popping sounds throughout the day and night, often waking me from sleep. The other unit does make some fluttering sounds, but minimal popping sounds. We were told this is due to expanding and contracting in the vent/pipes. While this theory makes sense on some level, it makes absolutely no sense why the 2 units behave so differently when they're set to the same temps.
For a $26,000 job, we expected better quality products that can actually do their job of sensing and responding to temperature changes accurately, reliably and consistently. The Custom Comfort app is also very dated, slow and clunky.
Thankfully, we are still within our 1 year warranty period, and are hoping Endless Energy will continue to provide great service in helping us resolve this issue.
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We had an exceptional HVAC experience with Endless Energy. They went above and beyond at every point in the install process, even when there were unexpected challenges such as equipment shortages or floor/ceiling joists not lining up as expected. In my opinion, the best way to tell if you're working with a great company is to see HOW they handle unexpected issues or delays. In our case, I have a noise sensitivity so it was vital that the ceiling units they installed be whisper quiet. They solved this problem by hanging the units from isolators. They understood our concerns about optics and placement of return vents and the heat pump. The team was exceptionally communicative and honored their promises. Endless Energy delivered an excellent customer experience with a full team of specialists, technicians and plumbers.
I highly recommend Endless Energy to anyone needing HVAC services because when things don't go according to plan (and let's face it, with these big projects, there's always something unexpected) you can count on them to find creative solutions to meet your needs and ensure your comfort.
Response from the owner:Thank you so much, Janine, for your wonderful review! We're delighted to hear that you appreciated our team's ability to tackle unexpected challenges and address your specific concerns about noise and aesthetics. Your kind words about our communicative team and creative problem-solving truly mean a lot to us.