No heat? Weird noises? Sky-high bills? APEX repairs, tunes, and replaces every kind of heating system Fairfield County has.
Fast response · No obligation · Free estimates
Connecticut winters are no joke. APEX’s heating techs repair, tune up, and replace gas furnaces, oil furnaces, boilers, heat pumps, and hybrid systems — with priority Rapid response when the heat goes down in January.
We service every major brand: Carrier, Trane, Lennox, Rheem, Goodman, Bryant, American Standard, Weil-McLain, Burnham, Buderus, and more.
No-heat diagnostics, ignition, gas-valve, blower, and board repair.
Full combustion analysis, safety check, and efficiency tune.
High-efficiency 96%+ AFUE modulating gas furnaces.
Nozzle, pump, burner, tank-to-gas conversions.
Hot water and steam boilers — repair & replace.
Compressor, defrost board, refrigerant, reversing valve.
Carbon monoxide and combustion-safety diagnostics.
Smart thermostats and zoning system configuration.
Priority dispatch on every no-heat call, winter-long.
Licensed tech arrives, identifies the root cause, and explains your options.
Flat-rate pricing in writing — you approve before any wrench turns.
Parts on the truck, code-compliant install, cleaned up before we leave.
Parts & labor warranty, plus a courtesy follow-up to make sure all’s well.
“Our water heater died on a Sunday. APEX was at the door in under two hours, had a new unit installed the same afternoon, and the price matched the quote exactly. Zero surprises.”
“Replaced our old central AC with a Mitsubishi ductless system in our 1920s home. Clean install, respectful of the property, and our electric bill dropped 30% the first month.”
“Commercial property manager here — APEX handles our whole portfolio now. Fast, licensed, and their invoicing is clean. Can’t recommend them enough.”
Quick checklist: thermostat on & set above room temp, furnace switch on, breaker not tripped, filter not clogged, and the pan/drain not full. If all check out, call us — most no-heat calls are resolved in one visit.
Once a year, ideally in fall before you need it. An annual tune-up catches failing parts early, keeps efficiency high, maintains your warranty, and verifies combustion safety (CO).
If you have natural gas available at the street, almost always yes. Operating costs drop dramatically, and gas equipment is more reliable. We handle the tank removal, line install, and permit.
Standard 80% AFUE installs start around $5,500; high-efficiency 96% modulating systems run $8,500–$13,000 depending on sizing, venting, and accessories. All quotes are flat-rate.
From the Gold Coast to the foothills, APEX responds fast across every town in Fairfield County. If you don’t see your town listed, give us a call — if you’re nearby, we’re on the way.