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A 2019 customer at All Seacoast Dental in Gloucester said Seasonal Control handled heating and air conditioning, answered the phone and repaired problems the same day. A 2014 condo customer said Seasonal Control had worked on the systems for 10 years while charging more and more. The 2014 customer said another company worked on the upstairs air-conditioning unit and suggested new thermostats, after which the upstairs bedroom stayed at 70 degrees instead of reaching 76–78 degrees in the afternoon.
We use Seasonal Control at All Seacoast Dental in Gloucester for heat and air conditioning. They always answer the phone, show up the same day and fix the problem in the same day! Can't ask for anything better than that!!!
since seasonal control is not under contract with my condo building-the new company has come in and my upstairs a/c unit was taken back to their shop-worked on and brought back. they suggested new thermostats both up and downstairs and now my systems have never worked better.seasonal control worked on my systems for 10 years and never once did this and continued to take more and more money for me. my bedroom upstairs used to heat up in the afternoon to 76-78 degrees and now it stays at 70!! do not use seasonal control! i recommend Preferred Air of Topsfield, Ma.
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2 changes recorded — last scanned Sep 23, 2026.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Seasonal Control. 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
Frozen pipe repair3.7