Reliable heating & cooling for homes and businesses

A licensed local team across Macomb & St. Clair Counties for furnace & AC repair, installs, and maintenance — honest work, up-front pricing, comfort that lasts.

Seasonal Maintenance, Member Savings, and Peace of Mind For Every Season

Your Local Heating & Cooling Specialists

S. Finzel Mechanical was founded in 2026 with a simple mission: deliver honest, dependable HVAC service backed by experience, integrity, and exceptional customer care.

Founded by a team of experienced HVAC professionals, including the daughter of the original Finzel family founders, S. Finzel Mechanical is an independent, family-owned company built on trusted values and a commitment to doing the job right.

We believe homeowners and business owners deserve more than a quick fix. They deserve clear communication, honest recommendations, quality workmanship, and a team that respects their time, property, and investment. Every service call is an opportunity to build lasting relationships through dependable service and attention to detail.

s. finzel mechanical's heating & Cooling Services

Furnaces

Repair, replacement, and tune-ups to keep your heat running all winter.

Air Conditioning

Cooling installs and fast repairs to beat Michigan summers.

Water Heaters

Tank and tankless installs, repairs, and dependable hot water.

Ductless / Mini-Split

Efficient zoned comfort for additions, garages, and older homes.

Indoor Air Quality

Filtration, humidifiers, and purifiers for cleaner, healthier air.

Commercial

Rooftop units and light-commercial HVAC for local businesses.

Your neighbors for dependable comfort

We’re a locally owned heating and cooling company that treats every home and business like our own — on time, transparent, and standing behind every job, in every season.

On time, every time

Scheduled windows we actually keep.

Honest recommendations

Repair when we can, replace when you should.

Clean, respectful crews

We treat your space like our own.

Warranty-backed work

Quality parts and labor you can trust.

Comfort restored in three steps

Book your visit

Call or schedule online. We'll confirm a time that works — including same-day for emergencies.

We diagnose & quote

A licensed tech inspects your system and explains your options with clear, up-front pricing.

Comfort restored

We complete the work cleanly, test everything, and back it with our satisfaction guarantee.

Loved by Macomb & St. Clair County homeowners

Trusted for honest service, dependable comfort, and quality workmanship throughout every season.

    
 
 
         
   Gary 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very great service answer all questions great installation of air conditioner will always use them for service again Nells and Al great techs
  
 
        
   Marilynn Tys 
 
 
 
 Trustindex verifies that the original source of the review is Google. I highly recommend S Finzel Mechanical Heating & Cooling. They are reliable, professional, and consistently do great work. Over the years they have replaced our furnace, a/c and most recently the hot water tank.  Every project has been completed with the same high level of quality and attention to detail.

Their workmanship, honesty, and excellent customer service are why I continue to trust them with all of my heating and cooling needs. If you're looking for a dependable HVAC company that stands behind its work, I highly recommend them.
  
 
        
   David Castle 
 
 
 
 Trustindex verifies that the original source of the review is Google. Nels did a good job!
  
 
        
   Susan Becker 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent service honest and polite. Finzel Mechanical is the only place I would call. Great service !
  
 
        
   Ghost13 
 
 
 
 Trustindex verifies that the original source of the review is Google. This company and there great employees are just the best.there reasonable prices fast work ethic and open honesty is what a true business should be
  
 
        
   Aly McTaggart 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very knowledgeable. On time and communicative. Great experience. Highly recommend!
  
 
        
   Paulette Vollbach 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great service. Showed on time and fixed the problem.
  
 
        
   Deb Taormina 
 
 
 
 Trustindex verifies that the original source of the review is Google. Impressive work. Completely checked and cleaned AC system.  Highly recommend.
  
 
        
   karin lee 
 
 
 
 Trustindex verifies that the original source of the review is Google. Adam had my unit up and running very quickly
Although will need a new one but got it running
Came early, very friendly and did a great job
  
 
        
   Brick Mortar 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great pricing wonderful staff answered all my questions definitely recommend for maintaining anyone’s AC and Heat!

get $50 off your repair