Installed cost ranges for the systems New Haven County homes actually buy, what moves a quote up or down, and how to compare two bids that look nothing alike.
These are installed prices for professional work on a typical home, not equipment-only figures. Anything far below these ranges usually omits something — permits, disposal, ductwork, or electrical.
| System | Typical installed range | Notes |
|---|---|---|
| Gas furnace replacement | $5,000–$9,000 | High-efficiency units at the top; ductwork repair adds on. |
| Boiler replacement | $6,000–$10,000 | Steam systems cost more than hot-water; oil conversions add $2,000–$5,000+. |
| Central AC installation | $5,000–$9,000 | Requires existing ductwork; ductless is a separate job. |
| Heat pump installation | $8,000–$15,000 | Zones and electrical service drive the spread; rebates may apply. |
| Common repairs | $150–$350 / $400–$800 | Minor parts and diagnosis at the low end; major components at the high end. |
| Oil tank removal | $1,500–$3,000 | Part of most oil-to-gas or oil-to-heat-pump conversions. |
Energize CT rebates for high-efficiency furnaces, boilers, central AC, and heat pumps have recently run $500–$1,500+ depending on equipment and income qualification. A good contractor handles the paperwork and factors rebates into the comparison — if a contractor never mentions rebates unprompted, that is a yellow flag. Always confirm current offerings before signing, because programs change.
The honest way to use a rebate: compare the installed price after rebate, in writing, across bids. A bid that quotes the pre-rebate price as the ‘deal’ is not cheaper — it is just less complete.
Get matched with a local contractor for a free, itemized, written estimate — then compare it against this guide.