Verified record
Typical your area range for this kind of work, from regional averages — not a quote from Granite State Refrigeration Services 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
Granite State Refrigeration Services LLC puts in and services heating and cooling systems, and its own website says the company was founded in 2024. A recent Google customer said it installed three Mitsubishi mini-splits upstairs and added central A/C to the first floor and finished basement, connecting the new system to the existing forced hot air setup. That customer said Keenan Walker, the CEO/Founder, was their main point of contact, was personally involved in the installation, and that the job was scheduled for Monday through Friday and finished ahead of schedule. A recent customer who got a new central air system and mini splits said Keenan explained the pros and cons of each system during quoting and asked for their input on the placement and appearance of the units. A 2026 customer said Keenan serviced their mini-splits and inverters and replaced one unit. A 2025 customer said another company had told them a 20-year-old unit needed replacing at a cost of $14,000; Granite State did a full diagnostic, found the problem and repaired the unit. A 2025 customer said their first annual maintenance visit brought a thorough cleaning, not just a simple hose down. A 2025 customer said Keenan arrived as agreed and described shoe covers and a vacuumed work area during the visit. A 2025 customer said their dog got out during the job, and Keenan stopped his work to help look for her and found her. Its New Hampshire HVAC licence, number MBE1901138, is expired on the state registry; the holder of record is Granite State Refrigeration LLC.
Keenan again did a wonderful job! I use them for all my Hvac needs. He’s awesome!
Keenan does a fantastic job start to finish. His attention to detail and communication about the job and scheduling is terrific. I'm very happy with the work he did and I highly recommend him!
We had an outstanding experience with Granite State Refrigeration from start to finish. We received six different HVAC quotes, and Granite State was by far the best overall value when considering the quality of the equipment, the professionalism, and the price. They installed three Mitsubishi mini-splits upstairs and added central A/C to our first floor and finished basement. Our second floor did not have vents and was previously heated with electric baseboard, so the mini-splits were a major upgrade. They are quiet, efficient, and exactly what we needed. For the first floor and basement, they connected the new A/C system to our existing forced hot air setup, and the work around the furnace, coil, condenser, electrical, and outdoor units was incredibly clean and professional. Everything looks like it was meant to be there from the beginning. Keenan Walker, the CEO/Founder, was our main point of contact and was excellent throughout the entire process. He communicated clearly, answered all of our questions, explained the options, and was also personally involved in the installation. They originally scheduled the project for Monday through Friday, It was clear they planned it that way so they could do the job correctly, cleanly, and professionally without rushing. They strategically handled different parts of the project each day and still finished ahead of schedule. The line-set covers, electrical work, outdoor units, and overall installation are extremely clean. They protected the house, kept the work areas clean, showed up when they said they would, and paid close attention to detail. I could not be happier with the final result. I highly recommend Granite State Refrigeration to anyone looking for HVAC work. Competitive pricing, excellent communication, clean installation, and outstanding workmanship.
We had an excellent experience with Granite State Refrigeration from start to finish. Even during the quoting process, Keenan was transparent, honest, and upfront about every option available to us. He took the time to explain the pros and cons of each system so we could make an informed decision without ever feeling pressured. The pricing was very fair, especially considering the exceptional service we received. Throughout the installation, Keenan was professional, efficient, and kept the work area clean. He kept us updated every step of the way, checked in frequently on the project’s progress, and even asked for our input on the placement and appearance of the units to make sure we were happy with the final result. We couldn’t be happier with our new central air system and mini splits. The entire process was smooth, and it’s clear that customer satisfaction is a top priority. We highly recommend Granite State Refrigeration to anyone looking for honest, high-quality HVAC service!
Very responsive and On-time. Keenan service is fantastic
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Certified attributes are verified against the public registry. Others are the business's own statement.
1 change recorded — last scanned Oct 18, 2026.
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