Find and Invite the Best Commercial HVAC Contractors in O Fallon, MO

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75 Verified HVAC companies in O Fallon, MO

Downtobid vets each subcontractor's specialties, capabilities, and contact details for complete accuracy.

Fresh Air Heating & Cooling logo

Fresh Air Heating & Cooling

612 Spirit Valley East Dr. Chesterfield, MO 63005

Fresh Air Heating & Cooling is a family-owned and operated HVAC and indoor air quality service contractor based in Chesterfield, MO, providing comfort solutions since 1987. They offer a range of services including AC repair and installation, furnace services, and indoor air quality improvements, backed by a commitment to customer satisfaction and a team of certified technicians.

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13 miles from O Fallon, MO

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Albert Arno logo

Albert Arno

5000 Claxton Ave, St Louis, MO 63120

Albert Arno Inc. is a full-service HVAC-R company established in 1964, providing heating, air conditioning, ventilation, and refrigeration services, including repair, installation, and maintenance to commercial and industrial clients in the greater St. Louis area, eastern Missouri, and Illinois. The company prides itself on energy-efficient solutions, skilled technicians, and a commitment to customer satisfaction.

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13 miles from O Fallon, MO
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Rick's Heating & Air logo

Rick's Heating & Air

Wright City, MO 63390

Rick's Heating & Air has been providing expert HVAC services for residential homes and commercial properties in various counties of Missouri since 1985, specializing in installations, repairs, and indoor air quality solutions.

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16 miles from O Fallon, MO
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C & S Heating and Cooling logo

C & S Heating and Cooling

Wentzville, MO 63385

C & S Heating and Cooling is a HVAC service provider offering installation, repair, and maintenance of heating, cooling, and air quality systems for residential and commercial clients in Wentzville, MO and surrounding areas. They are known for their expertise in a variety of products and services, including emergency services and custom solutions tailored to unique customer needs.

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2 miles from O Fallon, MO
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Brushs Heating & Cooling logo

Brushs Heating & Cooling

Troy, Missouri 63379

Brushs Heating & Cooling Co., Inc. is a Missouri-based HVAC company with over 20 years of experience, specializing in residential and commercial heating and cooling services, including installation, maintenance, and repair of various HVAC systems. They offer financing options and participate in rebate programs, emphasizing quality service, dependability, and customer satisfaction.

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10 miles from O Fallon, MO
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Classic Aire Care logo

Classic Aire Care

111 Prospect Ave # 103, Kirkwood, MO 63122

Classic Aire Care is a trusted home services company in St. Louis, providing top-quality HVAC and plumbing services with nearly a century of experience. They offer 24/7 emergency service, free estimates, and a commitment to customer satisfaction with NATE-certified technicians for all HVAC jobs.

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13 miles from O Fallon, MO
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Kirkwood Heating & Air Conditioning logo

Kirkwood Heating & Air Conditioning

9350 Watson Industrial Park, St. Louis, MO 63126

Kirkwood Heating & Air Conditioning is an HVAC company based in St. Louis, MO, offering a range of services including installation, repair, and maintenance of heating, cooling, and air quality systems for both residential and commercial clients.

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13 miles from O Fallon, MO
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Swiss Air Heating & Cooling logo

Swiss Air Heating & Cooling

406 E Wabash St. O'Fallon, MO 63366

Swiss Air Heating & Cooling, LLC is a family-owned HVAC contractor based in O'Fallon, MO, providing a range of heating, cooling, and air quality services since 1989, with a commitment to customer satisfaction and a special maintenance plan for veterans.

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2 miles from O Fallon, MO
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Arch Air Services logo

Arch Air Services

3582 Adie Rd. Saint Ann, MO 63074

Arch Air Services is an HVAC company with over 20 years of experience, providing a range of services including AC and heating installation, repair, and maintenance, as well as ductless air conditioning systems, to the St. Louis County, St. Charles County, and surrounding areas in Missouri. They are committed to customer satisfaction with a focus on quality solutions, detailed workmanship, and reliable service.

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13 miles from O Fallon, MO
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Lyon Sheet Metal logo

Lyon Sheet Metal

4085 Bingham Ave, St Louis, MO 63116

Lyon Sheet Metal, Inc. is an ISO 9001 certified company specializing in custom metal crafting, including industrial fabrication, HVAC, precision welding, polishing, waterjet cutting, and installation services, with a history of delivering superior service and value since 1922.

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13 miles from O Fallon, MO
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Pump Shop at MME logo

Pump Shop at MME

4981 Fyler Ave, St. Louis, MO 63139

Pump Shop at MME is a one-stop sales and service firm specializing in the design, installation, maintenance, and repair of fluid distribution systems and pumps, serving clients in Missouri, Illinois, and beyond since 1927.

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13 miles from O Fallon, MO
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One Hour Heating & Air Conditioning logo

One Hour Heating & Air Conditioning

10466 Baur Blvd. Saint Louis, MO 63132

One Hour Heating & Air Conditioning is an HVAC service provider offering installation, repair, tune-ups, and indoor air quality solutions in the Hampton Roads area, including cities like Chesapeake, Newport News, and Virginia Beach. They emphasize punctuality with a guarantee that if they're not on time, the service is free, and they are committed to community involvement through their One Hour Cares program.

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13 miles from O Fallon, MO
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Wiegmann Associates logo

Wiegmann Associates

650 Fountain Lakes Blvd. St. Charles, MO 63301-4353

Wiegmann Associates is a St. Louis-based mechanical contractor specializing in innovative, energy-saving, and cost-effective HVAC solutions for commercial, industrial, and institutional markets, recognized as a national leader in design/build HVAC projects since 1995.

Verified


2 miles from O Fallon, MO

Specializations (18)

Correctional

Education

Federal Government

Financial

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Air-Donic logo

Air-Donic

882 Villagran Way Fenton, MO 63026

Air-Donic is a family-owned enterprise established in 1995, specializing in commercial refrigeration, HVAC services, and cooking equipment, offering sales, installation, maintenance, and repair for major brands in Crestwood, Fenton, Kirkwood, South County, and West County St. Louis.

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13 miles from O Fallon, MO
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Anton's Plumbing, Heating, Cooling, & Energy Experts logo

Anton's Plumbing, Heating, Cooling, & Energy Experts

Fenton, MO 63026

Anton's Plumbing, Heating, Cooling, & Energy Experts is a service provider offering a wide range of home maintenance solutions, including plumbing, HVAC, and indoor air quality services, in the St. Louis, MO area, with a commitment to world-class service and customer satisfaction.

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13 miles from O Fallon, MO
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Related Trades

HVAC Piping and Pumps

Refrigerant Piping

HVAC Air Distribution

HVAC Air Cleaning Devices

Central Heating Equipment

Central Cooling Equipment

Central HVAC Equipment

Decentralized HVAC Equipment

What the Early Adopters are Saying About Downtobid

"We have used Downtobid for our ITBs and so far our experience has been very positive. It has saved me time on the initial page turn and I really like the number of responses we're starting to see from our subcontractors!"

Robyn LynnMRI Builders

"The first time our company was able to travel outside Atlanta! Bidding in a new market and wasn't getting any hits on Drywall. Requested a boost and with 5 days I had 2 committed bidders and 1 submission. Using them on my next project."

Zalmy KavkaFounder, ZK Builders

""I love, the personalization of it. You get it more directed towards the contractors that we need. You, make it a little more personal than putting it on Blue Book or Planhub or anything like that. You let us communicate with the subcontractors, so we can narrow it down from what you've already narrowed it down from. We get more, more specific, more detailed quotes, more the correct quotes that we're looking for from you guys as opposed to maybe other places.""

Ryan PastorEstimator at George H. Pastor and Sons General Contracting

What the Early Adopters are Saying About Downtobid

"We have used Downtobid for our ITBs and so far our experience has been very positive. It has saved me time on the initial page turn and I really like the number of responses we're starting to see from our subcontractors!"

Robyn LynnMRI Builders

"The first time our company was able to travel outside Atlanta! Bidding in a new market and wasn't getting any hits on Drywall. Requested a boost and with 5 days I had 2 committed bidders and 1 submission. Using them on my next project."

Zalmy KavkaFounder, ZK Builders

""I love, the personalization of it. You get it more directed towards the contractors that we need. You, make it a little more personal than putting it on Blue Book or Planhub or anything like that. You let us communicate with the subcontractors, so we can narrow it down from what you've already narrowed it down from. We get more, more specific, more detailed quotes, more the correct quotes that we're looking for from you guys as opposed to maybe other places.""

Ryan PastorEstimator at George H. Pastor and Sons General Contracting

FAQs

What is Downtobid and how can it help find HVAC professionals in O Fallon, MO?

Downtobid is a platform that helps you find HVAC contractors in O Fallon, MO and submit bid requests for your projects. You provide project details, and the contractors respond with their bids through the platform.


Requesting bids from O Fallon, MO-based HVAC contractors

You can invite a contractor directly through our platform. Visit the contractor’s profile and click ‘Invite to Bid.’ Fill out the project details, including scope, timeline, and specific needs. Contractors in O Fallon, MO will then respond with their bids. It’s often helpful to call contractors after submitting a request, especially if your project is urgent.


Contractor verification process on Downtobid

Downtobid sets itself apart by verifying each contractor through a multi-step process. We use AI to ensure that contractor information, including trades, is accurate. We cross-check details using databases, public records, and Google Maps to confirm that businesses are active and their contact information is up-to-date before listing them.


Essential information for HVAC project bid requests

When submitting a bid request, include clear details about your project, such as materials needed, deadlines, and any specific requirements. The more specific you are, the better the contractor can assess and quote the job accurately.


Tips for contacting local HVAC professionals

If your project is urgent, it’s a good idea to call the contractor directly after submitting a bid request. This helps ensure they understand the timeline and scope of work, especially if immediate service is needed.


Managing bids for large-scale HVAC projects

If you have a larger project and don’t want to contact each contractor individually, you can reach out to us directly. We offer an ITB (Invitation to Bid) platform where you can manage bids from multiple contractors at once.


Expected response times from O Fallon, MO contractors

Most HVAC contractors will respond within 24-48 hours, depending on the complexity of your request. However, response times may vary – so be sure to follow up!

Quick stats about HVAC companies database in O Fallon, MO

Total contractors

1081 contractors

Total union contractors

110 union contractors

Total non union contractors

631 non union contractors

Total minority owned businesses

29 minority owned businesses

Total women owned businesses

14 women owned businesses

Average response time

3 days

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