Find and Invite the Best Commercial HVAC Contractors in Saint Louis, MO

Tired of outdated contact lists and the hassle of calling to check bidding intent? Simplify your bidding process with Downtobid's modern commercial contractor database. Access up-to-date, vetted profiles and ensure you connect with the right trades.

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75 Verified HVAC companies in Saint Louis, MO

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

Illinois Electric Works logo

Illinois Electric Works

2161 Adams St, Granite City, IL 62040

Illinois Electric Works is an industry leader in industrial equipment repair and electric motor rebuild in the Midwest, providing high-quality services and products to keep industry running 24/7, with capabilities to repair AC and DC motors up to 20,000 hp and beyond.

Verified


9 miles from Saint Louis, MO

Specializations (3)

Infrastructure

Office Building

Warehouse

Website

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Welsch Heating & Cooling logo

Welsch Heating & Cooling

2175 Welsch Industrial Ct. P.O. Box 28545 Saint Louis, MO 63146

Welsch Heating & Cooling Company is a family-owned business providing heating and air conditioning services in the St. Louis/St. Charles area since 1895, recognized for service excellence, civic responsibility, and performance as a business leader in the community.

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Air Comfort Service logo

Air Comfort Service

10926 Lin Valle Dr. Saint Louis, MO 63123

Air Comfort Service, Inc. is an HVAC company serving the St. Louis area, offering a wide range of services including air conditioning, heating, insulation, and indoor air quality solutions for both residential and commercial clients.

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Coleman Heating and Sheet Metal logo

Coleman Heating and Sheet Metal

13515 NW Industrial Dr, Bridgeton, MO 63044

Coleman Heating and Sheet Metal is a local, family-owned HVAC company based in Bridgeton, Missouri, providing residential and commercial HVAC services, including repairs, installations, and maintenance since 1987.

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Haberberger logo

Haberberger

9744 Pauline Pl, St Louis, MO 63123

Since 1948, Haberberger, Inc. has been providing high-quality mechanical contracting solutions, fabrication, and HVACR services with a commitment to safety and cost-efficiency, aiming to complete projects with zero injuries, on time, and within budget.

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Clay Piping Systems logo

Clay Piping Systems

1360 N Price Rd, St Louis, MO 63132

Clay Piping Systems, incorporated in 2010 and MBE-certified, specializes in fire protection, plumbing, and mechanical construction, focusing on client satisfaction and maintaining relationships built on trust and performance. With over 13 years of success, the company prides itself on its professional workforce, commitment to safety, and staying updated with technology and training in the industry.

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AL-DON logo

AL-DON

11740 Lackland Industrial Dr. Saint Louis, MO 63146

AL-DON is a trusted HVAC service provider in St. Louis, offering residential and commercial air conditioning, heating, and indoor air quality services for over 65 years.

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Fleddermann Heating & Cooling logo

Fleddermann Heating & Cooling

9529 Yuma Dr, St. Louis, MO 63123

Fleddermann Heating & Cooling is an HVAC company with over 25 years of experience in the industry, offering a range of services including system maintenance, installations, and repairs, as well as home sale inspections. Founded by Dan Fleddermann, the company has grown from a single van operation to a team with multiple vehicles, serving the St. Louis area with a commitment to getting the job done right the first time.

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Future Aire Heating & Air Conditioning logo

Future Aire Heating & Air Conditioning

Eureka, MO 63025

Future Aire Heating & Air Conditioning is a family-owned HVAC service provider that has been operating since 1984, offering installation, maintenance, and repair services for heating and cooling systems in Eureka, MO, and surrounding areas.

Verified


Specializations (3)

Military

Office Building

Retail - General

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Ricotta Heating & Air logo

Ricotta Heating & Air

2931 N. Jefferson Ave. Saint Louis, MO 63107

Ricotta Heating & Air is a family-owned and operated HVAC company that has been serving Jefferson County, MO for over 50 years, providing a full range of heating, cooling, and indoor air quality services for residential and commercial clients.

Verified


3 miles from Saint Louis, MO
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JEN Mechanical logo

JEN Mechanical

2813 W Delmar Ave, Godfrey, IL 62035

JEN Mechanical is an HVAC company providing maintenance checks, emergency repairs, and individualized heating, cooling, and ventilation solutions for both residential and commercial clients, with a commitment to customer satisfaction and quality service.

Verified


9 miles from Saint Louis, MO
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Global Warming and Cooling logo

Global Warming and Cooling

5 Jeremy Ct. Arnold, MO 63010

Global Warming and Cooling LLC is a company that provides residential and commercial HVAC services, including installation, repair, and maintenance of heating and cooling systems, as well as water heaters. They offer easy financing options through partnerships with Synchrony Financial and the HERO program.

Verified


15 miles from Saint Louis, MO
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Bieg Plumbing logo

Bieg Plumbing

2015 Lemay Ferry Rd. Saint Louis, MO 63125

Bieg Plumbing Company, serving the Greater St. Louis area since 1960, offers comprehensive residential and commercial plumbing and HVAC services, including installation, maintenance, and repair, ensuring minimal disruption to operations and maintaining comfortable environments for homes and businesses.

Verified


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Air Comfort Service logo

Air Comfort Service

11920 Missouri Bottom Rd. Saint Louis, MO 63042

Air Comfort Service, Inc. is an HVAC company serving the St. Louis area, offering a wide range of services including air conditioning, heating, insulation, and indoor air quality solutions for both residential and commercial customers.

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Lou Brock Mechanical logo

Lou Brock Mechanical

P.O. Box 8422 Saint Louis, MO 63132

Lou Brock Mechanical is a Missouri-based, union-signatory commercial HVAC company founded in 2013, known for its commitment to quality workmanship and safety, with a clientele that includes hospitals, schools, universities, hotels, large venues, botanical gardens, aquariums, and multi-use buildings.

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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 Saint Louis, MO?

Downtobid is a platform that helps you find HVAC contractors in Saint Louis, 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 Saint Louis, 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 Saint Louis, 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 Saint Louis, 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 Saint Louis, MO

Total contractors

1098 contractors

Total union contractors

110 union contractors

Total non union contractors

648 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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