Across 378 permits filed since 2025-01-25, the median is $10,000; half of projects fall between $5,000 and $13,500. Figures are permit valuations reported to building departments. National cost guides answer this question with averages from other markets; these numbers are what homeowners in Southington, CT actually reported when they pulled permits.
Recent filings
- ****DAVE IS WORKING ON THIS*************** We will replace existing AC with (1) Am Std #5A7A4018, 1 1/2 ton, R454B 14 SEER condenser connecting in basement to coil inside furnace plenum. Net BTU/Capacity 18K CA fee includedTown of Southington · 2026-07-23$6,800
- ****DAVE IS WORKING ON THIS*************** We will replace existing AC with (1) Am Std #5A7A4048, 4 ton R454B 14 SEER Condenser connecting in basement to new A/Frame refrigeration coil inside existing furnace plenum Net BTU/Capacity 48K CTown of Southington · 2026-07-23$7,800
- ****DAVE IS WORKING ON THIS*************** Installation of replacement gas furnace and central ac system (evap coil/condenser) CA fee includedTown of Southington · 2026-07-22$14,000
How to read these numbers
Permit valuations are the project cost the applicant reports to the building department. They skew slightly low — nobody rounds up for the permit fee — and scope varies, so the middle-half range is the honest picture: half of all boiler / water heater permits in Southington, CT came in between $5,000 and $13,500. We exclude permits under $1,000, jobs filed as whole-house construction, and counties whose building departments don't reliably report valuations.
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