Heinanen Engineering, Inc.

Heinanen Engineering, Inc. serves South Lyon and surrounding Michigan communities with heating and cooling expertise backed by 330 customer reviews holding a 4.9-star average. The company handles residential heat pumps, air conditioning, water heaters, water softeners, and generator installations. Reviewers describe the team as knowledgeable, professional, and willing to answer questions without pressuring homeowners into purchases.

What distinguishes Heinanen Engineering is their engineering-focused approach to every installation. Multiple reviewers mention the company performed full load calculations to properly size new systems rather than taking a one-size-fits-all approach. The technicians custom-manufacture ductwork on-site to ensure precise airflow throughout each home. This attention to detail extends to their zero-pressure sales environment where customers receive factual performance data rather than sales pitches.

Customer stories from reviews reveal specific scenarios the team has handled. One homeowner called on a Sunday night during a May heat wave and received service by noon the following day, with the technician resolving the issue within an hour. Another reviewer noted the team completed a thorough walkthrough after installation, explaining how every component functions. A long-term customer described Jeff Heinanen as a knowledgeable resource who remains available to answer questions years after the original installation.