Skip to content
Taking CallsVerifiedHVAC Companies in O'Fallon, Missouri

Hoff Heating & AC

Taking Calls in O'Fallon Today 4.90 (1,516 reviews)(636) 388-7676

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.

Listing details

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

Vito Sansone

We had to replace a hot water heater that was part of our geothermal heating/cooling system. The installer (12 years ago) had hooked it up in a unique way. Kevin had to get some unusual joints and connectors in order to replace the old unit. Kevin showed flexibility and expertise and got it all connected. He did a great job. Thanks, Vito Sansone
View full reviewShow less

JAMES CHETTLE

Semi-annual HVAC equipment inspection as part of a service contract. Blake and his fellow technician both put on footwear covers upon entering my home. They introduced themselves and promptly went to work. Upon completion, Blake explained that testing showed all components of the furnace were functioning up to standards and no repairs were needed. He also mentioned that since the filter had been recently replaced, they just inspected it and found it to be clean. Before departing, they reset the thermostat to the setting they found before the inspection. Bottom line - the Hoff staff were courteous, professional and friendly!
View full reviewShow less

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!

Write a Review

Share your experience with this business. Reviews are moderated before they appear publicly.

We'll email you a link to confirm your review. It's only sent in once you click it.

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.