Meet the Crew Behind Green Mountain Heating & Cooling in Vermont
Last Updated: 10/20/2026
Built in Vermont, for Vermont Homes
Green Mountain Heating & Cooling is a Vermont HVAC company with 11 years of furnace and AC work behind us. Ethan Mercer grew up near Burlington, learning the trade in houses with tight mechanical closets, stone foundations, and ductwork added decades after the walls went up. That background shapes how we quote and how we work.
Vermont winters punish shortcuts. A furnace that runs fine in October can struggle at the first hard freeze, and summer humidity puts its own load on older AC units.
Homeowners hire us for straightforward furnace repairs, AC installations, and honest answers about whether a fix will hold through the season. Our technicians are EPA Section 608-certified, we are insured and bonded, and we are an Air Conditioning Contractors of America (ACCA) member.
We give clear estimates before any work starts, check our work at every step, and treat occupied homes with respect. No pressure, no upselling just practical recommendations suited to Vermont weather.

The People Who Show Up at Your Door
Ethan Mercer founded Green Mountain Heating & Cooling after years of working on furnaces and AC systems in older Vermont homes. “I grew up near Burlington,” he says, “and learned this trade in houses where long winters, old construction, and tight mechanical spaces call for careful planning.” He started the company to give Vermont homeowners clear advice and dependable help, from summer humidity to the first hard freeze.
Our crew handles service statewide, Reliable Heat and Cooling work included, and we schedule appointments by region so travel time and seasonal demand don’t leave anyone waiting longer than necessary. Before a technician starts, they walk you through the plan, coordinate any permits the job needs, and keep you updated through the whole visit.
That structure matters in a state where a January route from Stowe to Middlebury can double in length with one storm. We plan for it, and we tell you honestly what to expect on the day of service.
Signs That Bring Vermont Homeowners to Call
Most customers reach out after a system shows a warning they can’t ignore. Here’s what we hear about most:
- AC blowing warm air often a refrigerant or airflow issue that gets worse in July humidity.
- Furnace starts then shuts off short cycling wastes fuel and stresses the heat exchanger.
- Uneven temperatures between rooms common in older Vermont houses with added-on ductwork.
- No heat during cold weather an emergency once temperatures drop below zero overnight.
- Furnace making loud banging noises delayed ignition or duct expansion that shouldn’t be ignored.
- AC leaking water indoors a clogged condensate drain can damage floors fast.
- Thermostat blank or unresponsive sometimes wiring, sometimes the thermostat itself.
We get calls from all over capitol-area neighborhoods in Montpelier, homes near Church Street in Burlington, farmhouses outside St. Albans. Whatever the symptom, we’d rather diagnose it early than see the failure mode we run into every winter: a small repair put off until it becomes a no-heat call.

How We Work, Step by Step
Every job starts with a written estimate and ends with a check of our own work. Before we touch a system, we explain what we found, what we recommend, and what it costs in writing. During the visit, technicians follow Vermont’s Vermont Fire and Building Safety Code requirements, handle refrigerant under EPA Section 608 rules, and pull a mechanical permit through the City of Burlington Department of Planning and Zoning when a Burlington job calls for one.
One detail out-of-state crews routinely miss: Vermont’s Residential Building Energy Standards apply to equipment replacements in existing homes, not just new construction, and a properly sized unit for a well-insulated Chittenden County colonial is often smaller than the one coming out. Oversizing short-cycles equipment and drives up fuel bills.
We also account for what the season does to a job. A condensate line run through an unheated crawl space needs protection before December, or it freezes and trips the system on the coldest night of the year. We plan for that on the install date, not after the callback.
Talk It Through With Us First
If your furnace or AC is acting up, a phone call costs nothing and settles a lot of questions. Tell us what the system is doing and we’ll give you a straight read on whether it’s urgent, minor, or something you can monitor before anyone schedules a truck. If you’d like a quote for repair or replacement, we’ll set up a time that works and put the estimate in writing before any work begins.
Call Green Mountain Heating & Cooling at (555) 010-0000. No pressure, no obligation just a Vermont crew that answers plainly.

Why customers in Burlington, VT call E2E-small-state-shared-plain
Local service area
We schedule work in Burlington, VT and nearby communities, so you talk to people who know the area.
Scope agreed first
We confirm what the job includes before work begins, so the quote matches the visit.
Clear scheduling
You get a confirmed time and a direct number to call if your plans change.
Meet Your Local Experts
Ethan Mercer Lead Expert
Green Mountain Heating & Cooling
"Reliable Heat and Cooling, Statewide"
I grew up near Burlington and learned HVAC work in homes where long winters, old construction, and tight mechanical spaces call for careful planning. I started this company to give Vermont homeowners clear advice and dependable help with furnace repairs and AC installations, from summer humidity to the first hard freeze.
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