Hoff Heating & AC
Based in O’Fallon, Hoff Heating & AC was founded by Henry and Karen Hoff in 1983. It repairs, replaces and installs furnaces, air conditioners, heat pumps and air-quality systems, and provides geothermal services. Its operation includes a custom sheet metal shop and a dedicated technician training room.
Business Highlights
- Hoff Heating & AC is family-owned and operated.
- Its technicians hold NATE certification.
- Hoff Heating & AC is a Lennox Premier Dealer.
- The company lists a five-year parts-and-labor warranty on equipment repairs with continued participation in its Planned Service Maintenance Program.
Service Area
Ballwin, Bowling Green, Bridgeton, Chesterfield, Clarkson Valley, Clayton, Cottleville, Creve Coeur, Dardenne Prairie, Defiance, Des Peres, Earth City, Ellisville, Elsberry, Florissant, Foristell, Hawk Point, Hazelwood, Kirkwood, Ladue, Lake St. Louis, Maplewood, Maryland Heights, Moscow Mills, O’Fallon, Olivette, Overland, Saint Albans, St. Ann, St. Charles, St. Louis, St. Paul, St. Peters, Town and Country, Troy, University City, Warrenton, Webster Groves, Weldon Spring, Wentzville, Winfield and Wright City; St. Charles, Lincoln, Warren and St. Louis counties.
Taking calls through ProsGrade. Hoff Heating & AC is one of 9 HVAC companies ProsGrade lists in O'Fallon, Missouri.
11 services listed, including Furnace repair, Furnace installation and Furnace maintenance. Open Monday to Saturday. Rated 4.9 from 1,516 reviews.
- Verified listing details
- Service information
- Customer review signals
- Photo gallery
- Public contact information
- Published local profile
How This Business Compares
How Hoff Heating & AC compares with the other 8 HVAC companies on ProsGrade in O'Fallon, using public Google ratings and review counts.
- Ranks in the top half of the 9 O'Fallon HVAC companies on ProsGrade by Google rating and review volume.
- Has the most Google reviews (1,516) of the 9 O'Fallon HVAC companies on ProsGrade.
- One of 9 O'Fallon HVAC companies on ProsGrade rated 4.7 or higher from at least 10 reviews.
Services Covered
11 services- Furnace repairAll major brands; blower-motor replacement, ignitor repair and gas-furnace safety inspections.
- Furnace installationEnergy-efficient heating systems.
- Furnace maintenanceAnnual maintenance and tune-ups.
- Air conditioning repairElectrical, refrigerant, airflow and mechanical diagnosis.
- Air conditioning installationSystem options and sizing based on the home.
- Air conditioning maintenanceAnnual tune-ups; airflow, refrigerant and electrical checks.
- Heat pump servicesRepairs, maintenance and installations.
- Geothermal systems
- Indoor air quality systemsAir purifiers, scrubbers, humidifiers, dehumidifiers, ventilation, filtration and germicidal lights.
- Ductwork fabrication
- New-construction HVACNew-home plan evaluation; system design, project management and older-building retrofits.
Reviews
What customers say
Several customers praise the technicians’ professionalism and clear explanations. One inspection customer noted that the technicians wore footwear covers; a water-heater customer credited Kevin with sourcing unusual joints and connectors for a replacement tied to a geothermal heating/cooling system.
Customer Reviews
JAMES CHETTLE
Lynn Schwane
We were having issues with our thermostat and humidifier. They came out the same day, fixed the issue and explained thoroughly. The tech was very professional. We will always use Hoff Heating & AC due to their great customer service!
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Frequently Asked Questions
Does Hoff Heating & AC offer emergency HVAC service?
Its service department has technicians on call at all times for heating or cooling system emergencies.
What does Hoff Heating & AC’s Gold Plan include?
It includes three planned visits per year for heating, cooling and midseason service, priority service for breakdowns, and a 15% parts-and-repair discount.








