AC Installation in Grafton, ND
A new air conditioner in Grafton will run from July through August every year. Tell us about the house, and a licensed contractor who covers Walsh County will get in touch.
Tell us about the job
It takes about a minute.
Grafton's cooling season is short, but it still has to hold
Grafton only needs air conditioning in July and August. Two months a year, with summer afternoons averaging 78°F. That is a light load compared to a lot of the country, and a new system sized right for this climate will not run near as hard as one in a place with a longer, hotter summer.
What matters more here is what is outside the unit. Walsh County has logged 49 hail events and 71 damaging wind events over the past ten years, with hail up to 4 inches recorded. A condenser sitting outside takes that weather directly, so the coil and fins matter as much as the size of the unit. Any new central air conditioner installed today also has to meet the federal minimum of 13.4 SEER2.
- 2 months
- July through August, your air conditioner is on duty
- 78°F
- the average summer afternoon it cools against
- 49 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 $10 a year.
Estimates for a typical Walsh County home, from EIA household energy data, North Dakota fuel prices and NOAA climate normals. Your home will differ.
North Dakota requires HVAC contractors to hold a state license.
North Dakota licenses HVAC contractors through the Secretary of State. That license is on the contractor, not on any single job, so it means the state has a record of who this contractor is and that they met the state's requirement to hold it. Work under $4,000 does not need a licensed contractor at all, so smaller repairs can fall outside this rule.
An installation like the one on this page is the kind of job the license requirement is meant to cover. Past the state license, most cities and counties in North Dakota require a permit for this work and an inspection once it's done. That inspection is what checks the unit was installed correctly at your address, and it comes from the local building office, not the state.
Sources: North Dakota Legislative Branch · North Dakota Secretary of State
- What size air conditioner does my house need?
- It depends on your square footage, ceiling height, shade, and insulation, so a contractor needs to run a load calculation to get it right. Going by the old unit's rating or just guessing can leave you with the wrong size. An oversized air conditioner cools the air fast but shuts off before it pulls the humidity out, so the house feels clammy even once it hits the right temperature. Summers here are short, just July and August, but that makes getting the size right for comfort worth the trouble, not less.
- Should I replace the whole system or just the outdoor unit?
- If your indoor coil and outdoor unit are different ages, replacing only the outdoor unit can cause problems. The two are matched to work together, and pairing a new condenser with an old coil often means the system never reaches the cooling capacity or efficiency it's rated for. It can also void the warranty on the new equipment. A contractor can check whether your existing coil will pair with new outdoor equipment or whether both need to go at once.
- Do HVAC contractors in Grafton need a state license to work on my home?
- Yes. North Dakota requires HVAC contractors to hold a state license, and the license covers the contractor rather than each job. Small jobs are exempt from this rule, but an AC installation is well beyond that threshold, so you want a licensed contractor for the work. A contractor will price the job for your house, and you'll also need a permit from the local building office and an inspection once the installation is done.