Data report
110 hvac permits were filed in Killingly CT during 2024 — 60 contractors are named in the record, and these are the most active, ranked by the permits each pulled. Every figure comes from public building-permit records, not self-reported activity.
110 total permits · 60 verified contractors
Year over year
HVAC permits in Killingly CT fell 11% versus 2023, from 123 to 110 permits.
HVAC leaderboard · 2024
Method
Every figure is drawn from public building-permit records filed in Killingly CT. A permit is counted once, by the contractor named on it. Installer names are grouped so minor spelling and entity-suffix variations (for example “Inc” vs “Inc.”) count as one company. This is recorded work, not survey data or self-reported claims, and it is reproducible from the public record.
Caveats
A permit reflects a job filed with the local building department. It is a strong proxy for installation activity but is not identical to completed work. Coverage is built from the records each jurisdiction publishes, so a contractor working without listing a name on the permit will not appear here.
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Pastes as: Data: Proven Pros (linked to this report)
<iframe src="https://provenpros.co/embed/report/ct-killingly-ct-hvac-2024" width="100%" height="420" style="border:0;max-width:520px" title="The busiest hvac contractors in Killingly CT, CT (2024) — Data by Proven Pros" loading="lazy"></iframe>See the full permit-verified track records behind these numbers: hvac and other contractors in Killingly CT, see typical hvac costs in Killingly CT, or browse all of Connecticut.