AC Installation in Vergennes, VT
A new air conditioner in Vergennes will run from July through July every year. Tell us about the house, and a licensed contractor who covers Addison County will get in touch.
Tell us about the job
It takes about a minute.
A short, mild cooling season in Vergennes
Summer afternoons here average 77°F, and cooling is only needed the one month. A new air conditioner in Vergennes does not run for a long season, but it still has to be sized right for the days it does.
Any new central air conditioner installed here has to meet the federal minimum of 13.4 SEER2. Addison County has also logged 16 hail events and 94 damaging wind events over the past ten years, so where the outdoor unit sits and how well it is anchored are worth getting right.
- 1 months
- July through July, your air conditioner is on duty
- 77°F
- the average summer afternoon it cools against
- 16 hail events
- in ten years, and hail bends the fins on outdoor coils
- 13.4 SEER2
- the federal minimum any new unit must meet
NOAA nClimDiv, 1991–2020 normals
Going above the federal minimum saves little here, about $20 a year.
Estimates for a typical Addison County home, from EIA household energy data, Vermont fuel prices and NOAA climate normals. Your home will differ.
Vermont has no state license for HVAC contractors.
Vermont does not put HVAC contractors through any state exam or file them in any state registry. There is no license number to check and no state agency keeping a record of who does this work in the state. Whatever protection exists here comes from somewhere other than the state.
For an air conditioner installation in Addison County, that protection is the local permit process. Most cities and counties require a permit from the building office before the work starts, and an inspection once it is done. That inspection is what checks the installation, not a state license, because Vermont has none to point to.
Source: Vermont Department of Public Safety, Division of Fire Safety
- What size air conditioner does my house need?
- There's no single answer that fits every house, and picking a size off a chart is how you end up with a unit that runs short cycles and never quite dries the air out. A contractor works this out with a load calculation, which looks at your square footage, your windows, your insulation, and how much shade your house gets. Vergennes summers top out around 77°F on average, which is mild enough that an oversized unit is more of a problem here than an undersized one. Bigger isn't better if the size doesn't match the house.
- Should I replace the whole system or just the outdoor unit?
- In most cases, the outdoor unit and the indoor coil need to be matched, so swapping just one usually means the new part won't perform the way it's rated to. If your indoor coil is old, replacing only the outdoor unit can also void the manufacturer's warranty on the new equipment. A contractor can check whether your existing coil and ductwork are still in shape to pair with new outdoor equipment, or whether the whole system needs to come out together. New central air conditioners have to meet a 13.4 SEER2 minimum now, so whatever goes in will be more efficient than what you have, but that number is about efficiency, not size.
- Do HVAC contractors in Vergennes need a state license to work on my home?
- No. Vermont has no state license or registration for HVAC contractors doing home work, so there's no license number to check with the state before you hire someone. What you'll still likely need is a permit from the local building office for installing a new air conditioner, along with an inspection once the work is done. Ask whoever you hire whether they're pulling that permit, since it's the inspection that confirms the installation was done correctly.