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Heating & Cooling Services in St. Clair, MI

Furnace, air conditioning, heat pump, and water heater repair and installation for St. Clair homes and businesses, from the Finzel family and team you know.

Your Local HVAC Team for St. Clair

We serve homes and businesses in the City of St. Clair, from downtown and the riverfront boardwalk to neighborhoods along Riverside Avenue, Clinton Avenue, and M-29.

St. Clair has about 2,400 homes with a median build year of 1959, and about 78% are single-family detached homes. About 81% heat with natural gas, and older homes near downtown often have systems that were updated piece by piece over the years.

We serve all of St. Clair, including ZIP code 48079, with honest recommendations, up-front pricing, and work done right the first time.

S. Finzel Mechanical HVAC technician

Heating & Cooling Services for St. Clair Homes

Licensed technicians for repairs, replacements, and maintenance on every major comfort system in your home.

Furnaces & Heating

Furnace repair, replacement, and tune-ups to keep your St. Clair home warm all winter. Furnace services

Air Conditioning

AC repair, installation, and maintenance for cool, dry summers. AC services

Heat Pumps & Ductless

Efficient heat pumps, dual-fuel systems, and ductless mini-splits. Heat pump services

Water Heaters & Air Quality

Water heater repair and replacement, humidifiers, and indoor air quality upgrades. Water heater services

Air conditioner installation

Common HVAC Needs in St. Clair Homes

Furnace Replacement in Older Homes

Aging furnaces in 1950s homes and older houses near downtown.

Central Air Additions

Adding or replacing air conditioning in older homes.

Riverfront Humidity

Air conditioning that controls moisture in homes near the St. Clair River.

Ductless Mini-Splits

Comfort for rooms and additions that ducts don't reach.

Water Heater Replacement

Aging tank water heaters and tankless upgrades.

HVAC Service in Three Simple Steps

Call & schedule

Reach a live local team and book a time that works for you, with same-day appointments when available.

Diagnose & quote

A licensed technician finds the cause, explains your options, and gives you a clear price before any work begins.

Fix & follow up

We complete the work cleanly, test your system, and make sure you are comfortable before we leave.

Rebates for St. Clair Homeowners

In St. Clair, natural gas service is provided by SEMCO Energy, and most homes have DTE electric service. That means different rebate programs may apply to your furnace and your electric equipment:

  • Gas furnaces and boilers: SEMCO gas customers may qualify for rebates on qualifying high-efficiency equipment through SEMCO Energy’s Energy Waste Reduction program, including past-purchase rebates within 90 days of installation.
  • Heat pumps: DTE Electric customers may qualify for up to $1,200 when replacing electric heat, plus central air rebates, through a DTE participating contractor. Heat pump rebates

Rebate programs are set by each utility, current as of October 2026, and subject to change. Call (586) 366-4328 and we’ll help you figure out which rebates fit your home.

St. Clair HVAC Questions

Yes. We serve homes and businesses throughout St. Clair (ZIP 48079). Call to schedule and we’ll confirm the best appointment time for your address.

An air conditioner that’s sized correctly removes moisture as it cools. If yours is oversized or aging, it may cool without drying the air. We’ll check your system and recommend the right fix.

In many homes, yes, using the existing heating ducts. If your home has limited ductwork, a ductless mini-split may be a better fit.

St. Clair gas service is provided by SEMCO Energy, which offers rebates on qualifying high-efficiency furnaces. DTE Electric customers may also qualify for heat pump and central air rebates.

Need Heating or Cooling Help in St. Clair?