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.

Matheny Heating & Cooling logo

Matheny Heating & Cooling

6317 Olive Street Road, St. Louis, MO 63130

Matheny Heating & Cooling is a St. Louis-based HVAC specialist that has been keeping the area comfortable since 1942, offering installation, service, and repairs of heating and air conditioning systems, including high-efficiency units and American Standard products.

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13 miles from O Fallon, MO

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C&R Mechanical logo

C&R Mechanical

12825 Pennridge Dr. Bridgeton, MO 63044

C&R Mechanical Company is an employee-owned, St. Louis-based full-service design/build mechanical contractor and engineering firm, serving customers throughout the United States with a focus on healthcare, industrial, mission-critical data centers, commercial, government, and institutional LEED design and installation.

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13 miles from O Fallon, MO
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Central Safety & Fire logo

Central Safety & Fire

768 Stump Ct. Des Peres, MO 63131

Central Safety & Fire, established in 1969, is one of St. Louis's largest fire protection specialists, offering full-service design, installation, repair, service, and inspection of a wide variety of fire suppression systems, including commercial kitchen ventilation systems.

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13 miles from O Fallon, MO
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No Problem Heating and Cooling logo

No Problem Heating and Cooling

1565 Kisker Rd. Saint Charles, MO 63304

No Problem Heating and Cooling is a residential and commercial HVAC service provider offering expert installation, maintenance, and repairs in St. Peters, St. Charles County, and St. Louis County. They specialize in a range of services including air conditioning, heat pumps, furnace services, indoor air quality solutions, and ductless mini-splits, and are known for their award-winning service and same-day repairs.

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2 miles from O Fallon, MO
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C&G Heating & Cooling logo

C&G Heating & Cooling

7805 Manchester Rd. Saint Louis, MO 63143

C&G Heating & Cooling is an HVAC company providing a range of services including air conditioning and furnace repair, installation, and maintenance, as well as indoor air quality improvements in the Greater St. Louis area since 1987. They guarantee 100 percent customer satisfaction and offer a 10-year labor warranty.

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13 miles from O Fallon, MO
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Faszold Heating & Cooling logo

Faszold Heating & Cooling

1613 E. Terra Ln. O'Fallon, MO 63366

Faszold Heating & Cooling is a family-owned and operated business providing top-quality HVAC and plumbing services in St. Charles and St. Louis County, Missouri since 1980. They offer a comprehensive range of services including heating, air conditioning, plumbing, and indoor air quality solutions, with a commitment to exceptional customer service and absolute comfort for their clients.

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

Unique Heating & Cooling

2015 S. Big Bend Blvd. Saint Louis, MO 63117

Unique Heating & Cooling Inc. is a family-owned and operated company since 1967, specializing in the installation and service of heating, air conditioning, humidifying, and air filtration systems in St. Louis and surrounding areas. They offer a range of HVAC services for both residential and commercial clients, ensuring comfort with their experienced technicians and personalized customer service.

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13 miles from O Fallon, MO
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STL Direct Mechanical logo

STL Direct Mechanical

514 Earth City Plz, Earth City, MO 63045

Established in 2016, STL Direct Mechanical is a minority-owned mechanical contractor based in Saint Louis, Missouri, known for employing highly trained craftsmen and maintaining the highest standards of excellence in the industry while offering cost-efficient solutions to its construction partners.

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13 miles from O Fallon, MO
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H & A Mechanical Services logo

H & A Mechanical Services

1335 Charlestown Industrial Drive St. Charles , MO 63303

H & A Mechanical Services Inc is a family-owned business established in 2014 in St. Charles, MO, specializing in commercial refrigeration and HVAC services, offering 24-hour emergency services and boasting over 35 years of experience.

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2 miles from O Fallon, MO
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Missouri Furnace & Air Conditioning logo

Missouri Furnace & Air Conditioning

1835 Scherer Parkway, St. Charles, MO 63303

Missouri Furnace & Air Conditioning has been providing quality HVAC services to homeowners in St. Charles, St. Louis, and surrounding areas for over 50 years, offering a range of services including heating, cooling, indoor air quality, and 24/7 emergency response.

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2 miles from O Fallon, MO
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Chesterfield Service logo

Chesterfield Service

Chesterfield, MO 63017

Chesterfield Service is a one-stop shop for home mechanical needs in the Chesterfield and St. Louis County areas, offering a wide range of services including HVAC, plumbing, electrical, appliance repair, and gas fireplace repair. Their professional technicians are committed to providing high-quality service and customer satisfaction.

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13 miles from O Fallon, MO
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Charles E. Jarrell Contracting logo

Charles E. Jarrell Contracting

4208 Rider Trail North Earth City, MO 63045

Charles E. Jarrell Contracting Company, Inc. is a comprehensive mechanical contractor that has been providing quality service and value on projects since 1954, specializing in HVAC, plumbing, controls, design and engineering, with a focus on energy-efficient solutions and in-house design-build capabilities.

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13 miles from O Fallon, MO
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Crestside Ballwin Heating & Cooling logo

Crestside Ballwin Heating & Cooling

8130 Valcour Ave. Saint Louis, MO 63123

Crestside Ballwin Heating & Cooling is a St. Louis-based HVAC service provider offering a range of products and services including air conditioners, furnaces, and maintenance agreements since 1973, with a focus on customer satisfaction and convenient financing options.

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13 miles from O Fallon, MO
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Fletcher logo

Fletcher

6439 Plymouth Avenue, Suite 124 St. Louis, MO 63133

Founded in 2005, Fletcher Company LLC is a premier mechanical contracting company based in St. Louis, MO, specializing in innovative and quality HVAC and process piping applications for various sectors including healthcare, industrial, data centers, commercial, government, and institutional LEED-focused projects.

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13 miles from O Fallon, MO
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Metro Contract Services logo

Metro Contract Services

1734 Clarkson Rd, Chesterfield, MO 63017

Metro Contract Services (MCS) is a versatile company offering a range of services including millwright/rigging, mechanical, civil, structural, design-build, and fabrication, with over 20 years of experience in delivering high-quality projects and ensuring 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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