AC Installation in Hudson, WI
A new air conditioner in Hudson will run from June through August every year. Tell us about the house, and a licensed contractor who covers St. Croix County will get in touch.
Tell us about the job
It takes about a minute.
Three months of real work, and hail to survive the rest
Hudson only asks a new air conditioner to run June through August, with summer afternoons averaging 79°F. That's a short season, but the unit still needs to be sized right for those three months, not oversized on the idea that it needs to fight harder than it does.
The bigger risk to a new system here sits outside on the pad. St. Croix County has logged 60 hail events and 28 damaging wind events over the past ten years, with hail up to 3 inches. A condenser's coil and fins are exposed to that, so how well it stands up to a hailstorm matters as much as how it cools. Any new unit installed now also has to meet the federal minimum of 13.4 SEER2.
- 3 months
- June through August, your air conditioner is on duty
- 79°F
- the average summer afternoon it cools against
- 60 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 St. Croix County home, from EIA household energy data, Wisconsin fuel prices and NOAA climate normals. Your home will differ.
Wisconsin requires contractors to register with the state.
That registration puts the business on file with the Department of Safety and Professional Services. Nobody tests the contractor's work to get on that list, so the state isn't vouching for the quality of the installation, just recording that the business exists. Wisconsin also keeps counties and cities from layering their own HVAC license on top, so this registration is the only state-level record you'll find anywhere in Wisconsin.
For an air conditioner install, the protection that matters comes from the permit process instead. Most cities and counties require a permit for this job and an inspection once the work is done, and that inspection is what checks the installation against code. That local inspection, not the state registration, is where this job gets checked in Wisconsin.
Sources: Wisconsin Legislative Reference Bureau · Wisconsin Department of Safety and Professional Services
- What size air conditioner does my house need?
- It depends on your square footage, your layout, your insulation, and how much shade your house gets, so there is no single number that fits every home. A contractor works this out with a load calculation, not a chart based on house size alone. Getting it right matters more than people think. Too big a unit cools the air fast but shuts off before it pulls the humidity down, and too small a unit runs constantly and still can't keep up on the hottest afternoons.
- Should I replace the whole system or just the outdoor unit?
- If your indoor coil and outdoor unit weren't installed together, replacing just the outdoor unit often causes problems. The two are matched to work at a specific capacity and airflow, and pairing a new condenser with an old coil can mean poor cooling and extra strain on the new unit. Age matters too. If the coil is old enough that it's close to needing replacement anyway, doing both at the same time avoids paying for a second round of labor down the road. A contractor can look at what you have and tell you whether the coil is a match.
- Do HVAC contractors in Hudson need a state license to work on my home?
- Wisconsin requires HVAC contractors to register with the state through the Department of Safety and Professional Services. Ask to see this before work starts. It's a straightforward way to know you're dealing with someone accountable to the state, not just to you.