Dependable Heating & Cooling You Can Trust
Your HVAC partner for home and business in South Lyon and across Southeast Michigan. Family-owned, Trane-certified, and serving the community for over 20 years.
Our Services
Whole-Home Comfort, One Trusted Team
From furnaces to backup power, we keep your home and business comfortable, safe, and running all year long.
Why Heinanen
Why We Are the Best
Six reasons Southeast Michigan homeowners and businesses have trusted us for over two decades.
Fair Pricing
Quality comfort should be affordable. Our competitive, up-front pricing means exceptional service without surprises or pressure.
Family Owned
As a family-owned business, we treat every customer like a neighbor. Honesty and integrity guide every job we do.
Reliable & On-Time
Your time matters. Our team arrives on schedule and works efficiently to get your home comfortable again — fast.
Emergency Service
Heating and cooling problems do not keep business hours. We offer same-day and after-hours emergency response for urgent issues.
Safety First
Every install and repair is done to code, with combustion, gas, and electrical safety checked and verified before we leave.
20+ Years In Business
Two decades of hands-on HVAC and mechanical experience across Southeast Michigan — and the Trane Comfort Specialist certification to back it.
Trane Comfort Specialist™
Premium Equipment, Expertly Installed
Trane builds some of the most reliable, efficient heating and cooling systems in the industry — and the Trane Comfort Specialist designation is reserved for dealers who meet Trane’s highest standards for training, service, and customer satisfaction.
That means when you choose Heinanen Engineering, you get premium equipment installed by a certified team that stands behind the work — and a system that delivers the efficiency and comfort it was designed for.
Explore comfort systemsCertified Install
Equipment installed to spec so you keep the full warranty and full efficiency.
Top-Tier Standards
Earned and renewed annually for training, service, and satisfaction.
Safety Verified
Combustion, gas, and electrical checks on every job.
We Stand Behind It
A local, family-owned team you can call back any time.
Our Vision
To be the most trusted and respected heating and cooling company in Southeast Michigan — known for quality, customer satisfaction, and doing right by our neighbors.
Our Mission
To provide top-tier HVAC and mechanical services that exceed expectations — solving comfort problems quickly, honestly, and at a fair price, every single time.
A Trusted Partner in South Lyon for Over 20 Years
Helping is right in our name. The Heinanen family is proud to support South Lyon — at local events, around town, and through the Carl & Joanne Foundation.
Frequently Asked Questions
Everything you need to know about working with Heinanen Engineering.