JM Mechanical ContractorsHVAC contractor in Caledonia, WI

JM Mechanical Contractors is ranked #26 of 294 HVAC contractors in Caledonia by CR Score, with 60 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

JM Mechanical Contractors is open 24 hours a day, 7 days a week. Its listed hours are Open 24 hours, 7 days a week. On Saturdays it is open Open 24 hours, and on Sundays Open 24 hours. Hours come from the business listing; holiday hours may differ.

Serves Caledonia and 12 towns within 25 miles: Brookfield, Elm Grove, Wauwatosa, West Allis, New Berlin, Greenfield, Waukesha, Menomonee Falls, Sussex, Hales Corners, Pewaukee and Glendale. The list is based on the business's location and the usual service radius for heating and cooling. Confirm your address is covered when you call.

JM Mechanical Contractors has a rating of 4.7 from 35 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

Call JM Mechanical Contractors on (414) 322-7596. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.