AC Installation in Grand Rapids, MI
A new air conditioner in Grand Rapids will run from June through August every year. Tell us about the house, and a licensed contractor who covers Kent County will get in touch.
Tell us about the job
It takes about a minute.
Three months of real heat, then it stops
Summers here run June through August, with afternoons averaging 81°F. That is a short season, but your new air conditioner still has to be sized for those three months rather than a guess at mild weather.
Kent County has also logged 56 damaging wind events and 11 hail events over the past ten years, with hailstones as large as 1.75 inches. The outdoor condenser sits outside through all of that, so where it goes and how it is installed matters. Any new central air conditioner installed today also has to meet the federal efficiency minimum of 13.4 SEER2, so that much is already settled before you choose anything else.
- 3 months
- June through August, your air conditioner is on duty
- 81°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
A higher-efficiency unit would save about $30 a year to run in Kent County compared with a new unit at the federal minimum.
Estimates for a typical Kent County home, from EIA household energy data, Michigan fuel prices and NOAA climate normals. Your home will differ.
Michigan requires HVAC contractors to hold a state license.
Michigan issues this license to the contractor, not to the job itself. It comes from the Board of Mechanical Rules, and it means the state tested this contractor and keeps a record of who they are. That record follows the business from one installation to the next.
For your air conditioner, that license is what stands behind the person doing the work. In most cities and counties, the installation also needs a permit from the local building office and an inspection once the work is done. That is separate from the license, and it is where the job itself gets checked, not just the contractor doing it.
Sources: Michigan Legislature · Michigan Department of Licensing and Regulatory Affairs
- What size air conditioner does my house need?
- The right size comes from a load calculation, not the square footage of your house. A contractor looks at your insulation, your windows, how many rooms face the sun, and your ceiling height, then runs those numbers through a formula to find the tonnage you need. An oversized unit cools the air fast but shuts off before it pulls the moisture out, so the house feels damp. An undersized one runs constantly on Grand Rapids' hottest afternoons and still can't keep up. Ask whoever quotes the job to show you the load calculation, not just a guess based on the old unit.
- Should I replace the whole system or just the outdoor unit?
- If your indoor coil and outdoor unit were installed together and matched for each other, replacing only the outdoor unit usually causes problems. The compressor and coil are built to work at matched capacities, and pairing a new outdoor unit with an old indoor coil can hurt efficiency and shorten the life of the new equipment. Age matters too. A furnace or coil that is already old and near the end of its life is often better replaced alongside the outdoor unit than paired with new equipment it was never built to match. A contractor can look at both pieces and tell you whether they are still compatible before you decide.
- Do HVAC contractors in Grand Rapids need a state license to work on my home?
- Yes. Michigan requires HVAC contractors to hold a state license, issued by the Board of Mechanical Rules. Ask to see the license number before work starts, and you can confirm it's active through the state. Working with a licensed contractor also matters if something goes wrong, since unlicensed work can complicate insurance claims and void manufacturer warranties on the equipment.


