Find and Invite the Best Commercial HVAC Contractors in Ontario, CA

Tired of outdated contact lists and the hassle of calling to check bidding intent?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 Ontario, CA

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

Harbor Pointe Air Conditioning & Control Systems logo

Harbor Pointe Air Conditioning & Control Systems

Placentia, CA 92870

Harbor Pointe Air Conditioning & Control Systems, Inc. is a commercial HVAC company established in 1989, providing air conditioning service, installations, energy management, and maintenance primarily for industrial, commercial, healthcare, and institutional buildings in Southern California.

Verified


14 miles from Ontario, CA

Specializations (3)

Healthcare

Office Building

Tenant Improvements

Website

Call

WebsiteCall
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Xcel Mechanical Systems logo

Xcel Mechanical Systems

Gardena, CA 90249

Xcel Mechanical Systems is one of the largest design-build mechanical contractors in California and is recognized as one of the safest in the United States, specializing in delivering cost-effective HVAC, plumbing, and process piping systems that make buildings comfortable and energy-efficient.

Verified


6 miles from Ontario, CA

Specializations (16)

Airport

Education

Federal Government

Government

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Athena Engineering logo

Athena Engineering

456 E Foothill Blvd, San Dimas, CA 91773

Athena Engineering, Inc. is a construction and consulting firm that specializes in building systems design, construction, and control for commercial, industrial, and institutional clients. The company offers services such as mechanical HVAC design, building information modeling, construction management, power infrastructure design, and energy services.

Verified


6 miles from Ontario, CA

Specializations (19)

Airport

Casino

Correctional

Education

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Delta Tech Mechanical logo

Delta Tech Mechanical

13892 Gardenia Ct, Eastvale, CA 92880

Verified


7 miles from Ontario, CA

Specializations (2)

Grocery

Hospitality

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Contemporary Heating & Air Conditioning logo

Contemporary Heating & Air Conditioning

Placentia, CA 92870

Contemporary Heating & Air Conditioning, Inc. is a family-owned business established in 1985 by Randy Peterson. Based in Placentia, California, it is a full-service commercial heating, ventilation, and air conditioning contractor that specializes in design, installation, and maintenance of HVAC systems for commercial office buildings, medical facilities, pharmaceutical companies, retail work, and restaurants.

Verified


14 miles from Ontario, CA

Specializations (5)

Healthcare

Office Building

Restaurant

Retail - General

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Dena Air logo

Dena Air

11034 White Oak Ave. Granada Hills, CA 91344

Verified


6 miles from Ontario, CA
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Air Control Systems logo

Air Control Systems

1940 S. Grove Ave. Ontario, CA 91761

Verified


Specializations (9)

Distribution Center

Education

Grocery

Healthcare

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AC Plus Heating & Air logo

AC Plus Heating & Air

14615 Palmdale Rd. Victorville, CA 92392

Verified


Specializations (1)

Grocery

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Kashou Climate Control logo

Kashou Climate Control

1240 E. Ontario Ave. Ste. 102 Corona, CA 92881

Verified


7 miles from Ontario, CA

Specializations (1)

Grocery

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Control Air logo

Control Air

Anaheim, CA 92808

Control Air is a 100% employee-owned mechanical and plumbing contractor based in California, with over 46 years of experience. The company specializes in custom design, engineering, in-house fabrication, installation, building controls, maintenance, and ongoing service for commercial HVAC and Plumbing mechanical systems.

Verified


14 miles from Ontario, CA

Specializations (9)

Education

Financial

Healthcare

Higher education

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Faith Air & Heating logo

Faith Air & Heating

26826 Neff Ct. Canyon Country, CA 91351

Verified


6 miles from Ontario, CA

Specializations (2)

Financial

Grocery

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Service Air Conditioning logo

Service Air Conditioning

18432 W Oxnard St, Tarzana, CA 91356

Verified


6 miles from Ontario, CA
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Cool Air Solutions logo

Cool Air Solutions

41162 Sandalwood Cir. Ste. 101 Murrieta, CA 92562

Cool Air Solutions is a Southern California-based HVAC company specializing in air conditioning, heating, and indoor air quality solutions, including energy efficiency and virus defense systems. They offer a range of services and products, with a commitment to customer satisfaction and a hassle-free online scheduling system.

Verified


7 miles from Ontario, CA

Specializations (11)

Correctional

Education

Federal Government

Government

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Crandall's Plumbing, Heating & AC logo

Crandall's Plumbing, Heating & AC

18291 Gothard St Suite 102, Huntington Beach, CA 92648

Crandall's Plumbing, Heating & AC, established in 2009 and based in Huntington Beach, CA, is an owner-operated, licensed, bonded, and insured plumbing and HVAC corporation offering residential and commercial services with a fleet of trucks servicing Orange, Los Angeles, Riverside, and San Bernardino counties.

Verified


14 miles from Ontario, CA

Specializations (1)

Tenant Improvements

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Santa Clarita Custom Air logo

Santa Clarita Custom Air

23870 Pine St building 1, Newhall, CA 91321

Verified


6 miles from Ontario, CA

Specializations (1)

Grocery

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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

FAQs

What is Downtobid, and how does it work for finding HVAC contractors in Ontario, CA?

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


How do I request a bid from a HVAC contractor in Ontario, CA?

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 Ontario, CA will then respond with their bids. It’s often helpful to call contractors after submitting a request, especially if your project is urgent.


How does Downtobid verify the contractors listed in Ontario, CA?

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.


What information should I include in my bid request for HVAC contractors in Ontario, CA?

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.


What are the best practices for contacting HVAC contractors in Ontario, CA?

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.


What if I have a large project and don’t want to go contractor by contractor?

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.


How long does it take to get a response from a contractor in Ontario, CA?

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 Ontario, CA

Total contractors

549 contractors

Total union contractors

15 union contractors

Total non union contractors

401 non union contractors

Total minority owned businesses

19 minority owned businesses

Total women owned businesses

6 women owned businesses

Average response time

3 days

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