Heating and cooling in Trenton
Here’s how we handle furnace, boiler and air conditioning work in Trenton, and what it costs.

Boiler service and replacement
We clean and check hot-water boilers, repair circulator pumps, zone valves and controls, and replace boilers that are past saving.
Most gas boiler replacements cost $6,500 to $10,000 installed; multi-zone systems, steam systems and chimney or venting changes can cost more. See what a boiler replacement costs.
Zone valves and an expansion tank on a J&K boiler job.
Furnace repair and replacement
When a furnace won’t heat, we check the ignition, gas valve, flame sensor, safety switches, blower and venting, and we quote the repair before any work starts.
Most furnace replacements cost $4,200 to $7,200 installed, depending on the model. See furnace repair.
Checking the burners and gas valve during a furnace tune-up in Trenton.


Air conditioner replacement
When an air conditioner is past repair, we replace the outdoor unit and the indoor coil together, so the new system is matched. Most central AC replacements cost $5,000 to $8,500, and replacement estimates are free.
A new outdoor AC unit on a new pad at a Trenton home.
Service call
$110
$175 after hours; $0 for ESA members
Furnace replacement
$4,200–$7,200
Installed, depending on the model
Boiler replacement
$6,500–$10,000
Installed; multi-zone, steam and venting can cost more
Good to know
- A service call is $110 during regular hours, $175 after hours and $0 for ESA members. It covers the trip; diagnosis and repairs are quoted before any work starts.
- Replacement estimates are free, and if you replace after a service call we credit those fees toward the new system.
- Financing includes 0% APR for up to 60 months with approved credit.
- Licensed in Michigan, license #7109194. Family-owned in Monroe since 1986.
Questions about service in Trenton
Do you come to Trenton from Monroe?
Yes. Trenton is part of our Downriver service area, and we give you an arrival window for every visit.
How much is a service call in Trenton?
A service call is $110 during regular hours, $175 after hours and $0 for ESA members. It covers the trip; diagnosis and repairs are quoted before any work starts.
How much does a boiler replacement cost?
Most gas boiler replacements cost $6,500 to $10,000 installed; multi-zone systems, steam systems and chimney or venting changes can cost more. See what a boiler replacement costs.
Are replacement estimates free?
Yes. We come to your home, look at the system and price the options at no cost, and if you replace after a service call, we credit those fees toward the new system.
Do you cover Trenton after hours?
Yes. Trenton is inside our 24/7 area, subject to on-call technician availability. When you call, we’ll tell you when to expect the on-call technician. After-hours service calls are $175, or $0 for ESA members.