AC Installation in Laconia, NH
A new air conditioner in Laconia will run from July through August every year. Tell us about the house, and a licensed contractor who covers Belknap County will get in touch.
Tell us about the job
It takes about a minute.
Two months of real heat, then it shuts off again
Laconia only asks an air conditioner to work in July and August. Summer afternoons average 79°F, which is not extreme, but the unit you install still has to be sized and installed right for those two months, because it will sit idle the other ten.
Belknap County has also seen 38 damaging wind events and 11 hail events over the past ten years, with hail up to 1.75 inches. The outdoor unit sits outside through all of that, so where it goes and how it is protected matters. Any new central air conditioner installed today has to meet the federal minimum of 13.4 SEER2.
- 2 months
- July through August, your air conditioner is on duty
- 79°F
- the average summer afternoon it cools against
- 11 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 Belknap County home, from EIA household energy data, New Hampshire fuel prices and NOAA climate normals. Your home will differ.
New Hampshire has no state license for HVAC contractors.
New Hampshire does not test HVAC contractors, and it does not keep a state record of who does this work. There is no license number to check and no registration filed anywhere in Concord. Whatever protection exists here comes from somewhere other than the state.
In most cities and counties, installing an air conditioner needs a permit from the local building office, with an inspection once the work is done. That inspection is what checks the job was done right, since no state board is doing it.
Source: New Hampshire General Court
- What size air conditioner does my house need?
- The right size depends on your home's square footage, how much shade and window area it has, your insulation, and your layout. A contractor works this out with a load calculation, not a chart based on square footage alone. Install one too big and it cools the room fast but shuts off before it pulls the humidity out. Install one too small and it runs constantly without ever catching up. With only July and August to really carry the load here, getting the size right matters more than chasing a higher SEER2 number.
- Should I replace the whole system or just the outdoor unit?
- In most cases you replace the outdoor unit and the indoor coil together. The two are matched to work as a set. Pair a new outdoor unit with an old coil and you usually lose the efficiency gain you paid for, and it can void the warranty. If your existing coil is still in good shape and matches what the new unit needs, a contractor can tell you after looking at both. New units also have to meet the 13.4 SEER2 minimum now, which is one more reason an old coil may not pair well with one.
- Do HVAC contractors in Laconia need a state license to work on my home?
- No. New Hampshire has no state license or registration for HVAC contractors. That does not mean there is no oversight on the job itself. Installing a new air conditioner typically needs a permit from the local building office, with an inspection once the work is done. Ask any contractor you are considering about their experience and insurance directly, since the state is not screening that for you.