Reliable Heat When Michigan Winters Get Serious
When the temperature drops, you need heat that just works. Heinanen Engineering installs, repairs, and maintains high-efficiency furnaces, heat pumps, and boilers built to handle Michigan winters — backed by more than 20 years of local service and the Trane Comfort Specialist certification.
What we offer
- High-efficiency gas furnaces up to 97% AFUE
- Trane furnaces, heat pumps, and dual-fuel systems
- Furnace repair on every major brand, not just what we sell
- Same-day emergency heat — evenings, Monday through Friday
- Tune-ups that catch small problems before they become no-heat calls
- Honest, up-front pricing with repair-vs-replace guidance
An elite designation Trane awards to dealers who meet its highest standards for service, training, and customer satisfaction — earned, and renewed, every year.
Furnace & Heat Pump Installation
A right-sized system is the difference between a home that is evenly warm and one with cold rooms and a high gas bill. We measure your home, walk you through efficiency options, and install Trane and other premium equipment to manufacturer spec — so you get the full rated efficiency and the full warranty.
Repairs on Every Brand
No heat, short cycling, a cracked heat exchanger, a failed igniter or blower motor — our technicians diagnose the real cause and fix it, on Trane and on whatever brand you already own. We carry common parts on the truck so most repairs are one visit.
Seasonal Maintenance
A yearly tune-up keeps your furnace safe and efficient, protects your warranty, and is the single best way to avoid a no-heat emergency in January. We clean, inspect, and test combustion and safety controls so small issues are caught early.
Membership Program
Perfection Plus Maintenance Program
Our Perfection Plus Maintenance Program is designed to extend the life of your equipment, reduce unexpected breakdowns, and improve overall efficiency — all while saving you money.
Fewer Breakdowns
Regular tune-ups catch small issues before they become no-heat or no-cool emergencies.
Lower Costs
A clean, properly tuned system runs more efficiently and uses less energy.
Extended Equipment Life
Maintained equipment lasts longer, protecting your investment for years.
Preferred Status
Members move to the front of the line for scheduling and service calls.
10% Discount
Save 10% on select repairs and parts as a Perfection Plus member.
Peace of Mind
Know your comfort system is cared for by the same local team, season after season.
Frequently Asked Questions
Common questions about heating service in Southeast Michigan.
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.
