
- Home
- Service Area
- Guilford
Heating and cooling service in Guilford, CT
Our head office is on Oxbow Ln, so Guilford is home ground, from the colonial houses around the Green to the farms of North Guilford.
BDM Mechanical services boilers, furnaces, oil and propane burners, central air, ductless mini splits and heat pumps in Guilford, CT. The head office on Oxbow Ln is in town, calls are answered 24/7, and the Green, Sachem's Head and the North Guilford roads are some of our quickest runs.
Historic houses and homes off the gas main
Guilford has one of the largest collections of historic houses in New England, clustered around the Green and along Boston Street, and the Henry Whitfield House, built in 1639, is the oldest stone house in New England. Old houses like these rarely have room for ductwork, so they lean on boilers with radiators or baseboard, with ductless units or small-duct high-velocity systems added for summer cooling.
Much of town, including North Guilford and the roads off Route 77, sits beyond the gas mains, so oil and propane are common. Sachem's Head and Leetes Island face the Sound, where salt air and wind wear on outdoor equipment. Between the two, Guilford homeowners ask us about propane boilers, oil burner replacements and heat pump plans more than most.

What Guilford homes need
Oil burner replacement
New burners for older oil boilers and furnaces that still have years left.
Guilford oil burner replacementRadiant floors
Hydronic floor heat for additions and renovations in older houses.
Radiant floor heat in GuilfordHigh-velocity AC
Small-duct cooling for historic homes without room for standard ducts.
Cooling a historic houseGeothermal
Ground-source heat pumps for homes with the land to support a loop field.
Guilford geothermalBoiler replacement
Propane, oil and gas boilers sized to the radiators already in the house.
New boilers in GuilfordChimney liners
Liners for boilers and furnaces venting into older masonry chimneys.
Lining an old chimneyHow a call from Guilford is handled
Calls from Guilford reach the same 24/7 line as every other call, and the job goes to the head office on Oxbow Ln in Guilford, which covers Guilford on routine runs. When the Guilford schedule is full on a cold night, the Bridgeport service office picks it up, and you are told which office is coming before anyone leaves.
Tell us the system type, the fuel and what it is doing when you call. A boiler that is short of water, a furnace flashing a code or a heat pump stuck in defrost each points to different parts.
Questions from Guilford
Yes. The head office is on Oxbow Ln in Guilford, and it dispatches calls across Guilford, Madison, Branford and the New Haven side of our range.
Yes. Ductless mini splits and small-duct high-velocity systems both fit older homes without opening walls for full-size ducts. We look at the house before recommending one.
Yes. Propane boilers and furnaces are common off the gas mains, and we service, repair and replace them.
Other towns we cover close by
New Haven County
The Guilford head office covers the shoreline half of the county.
Heating and cooling in New Haven CountyNo heat or no cooling in Guilford?
Tell us what the system is doing, and you get a time window on the same call, any hour.