Verified record
Giants Heating and Cooling is an HVAC outfit built around ductless mini-split work — installs, replacements, and the occasional emergency repair when a unit stops cooling. Reviewers consistently name Raymond as the person who shows up and does the job himself. The specifics repeat across a four-year span of five-star Google reviews: a multi-unit job that put in five cassettes and a compressor, followed months later by Raymond dropping by unprompted to sort out an issue with one of the units. Another customer had two old mini-splits swapped out, with Raymond walking through the options before recommending the setup that would run most efficiently for their space. A general contractor who has worked with plenty of HVAC companies over the years says Raymond is the one he keeps coming back to for craftsmanship and punctuality. One customer's Daikin mini-split — leaking, and no longer turning on — got fixed after several other HVAC companies wouldn't take the job. There's nothing negative on the record: fourteen Google ratings average a perfect 5.0, and the twelve written reviews on file, from 2022 through this year, tell the same story without exception — responsive, professional, and willing to follow up after the fact. For anyone dealing with ductless mini-splits — a new install, a swap of aging units, or a system another company gave up on — this is a reasonable first call, with a track record of sticking around after the invoice is paid.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Giants heating and cooling LLC. 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
The HVAC guys did a great job with all the units, 5 cassettes were installed and a compressor. Even after several months when one of the units had an issue, they just dropped by to help. Thanks!
Highly recommend! Him and his team replaced our two old mini-split units with new ones and did an outstanding job. They took the time to explain the best options for our business, recommended what would work most efficiently, and made the entire process easy and professional. The new units have made a huge difference in our business—our workspace is much more comfortable, and our customers have noticed the improvement as well. We are extremely satisfied with their work, professionalism, and attention to detail. We will definitely use them again for any future HVAC needs! ⭐⭐⭐⭐⭐
Raymond and his team did a great job installing the condenser & 3-head mini splits. Very professional & super responsive! I highly recommend them to anyone looking for professional work. Looking forward to doing more business with them.
I was having issues with my Daikan Mini Splits (one wasn’t turning on, and the other was leaking). I reached out to multiple HVAC companies and began to be discouraged as many didn’t provide servicing for my split . I was referred to Raymond at Giants Heating and Cooling who was able to come out right away and assessed the issue, he then explained what was wrong (drainage line backup which prompted the safety settings) and immediately fixed the issues for both mini splits. Overall Ricardo was knowledgable, efficient and extremely professional. Giants Heating and Cooling is my go to for any of my HVAC needs moving forward. Thank you Again!!
Very professional, I'm a General contractor so I've dealt with many HVAC companies, and I'll always hire Raymond over anyone, if you are looking for professionalism, good craftsmanship and punctuality hire him.
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2 changes recorded — last scanned Sep 9, 2026.
Transparent diagnostics5.0
Repeat, years-long customers5.0
Decades-long customers5.0
Honest, no-upsell service5.0
Rapid response5.0
41 years in businessNot yet rated