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Tired of outdated contact lists and the hassle of calling to check bidding intent?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.

Select trade


Select location

75 Verified HVAC companies in Ontario, CA

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

C&L Refrigeration logo

C&L Refrigeration

Fullerton, CA 92835

C&L Refrigeration is one of the largest comprehensive Industrial HVACR contractors in the Western United States, providing heating, ventilation, air conditioning and refrigeration services since 1977. The privately held, family-operated company offers design, construction, maintenance and repair services.

Verified


14 miles from Ontario, CA

Specializations (9)

Federal Government

Government

Grocery

Healthcare

Website

Call

WebsiteCall
Click to reveal
View details
EMCOR Services Mesa Energy Systems logo

EMCOR Services Mesa Energy Systems

2 Cromwell Irvine, CA 92618

Verified


14 miles from Ontario, CA

Specializations (5)

Data Center

Education

Financial

Grocery

Click to reveal
View details
Air West Mechanical logo

Air West Mechanical

12166 Front St, Norwalk, CA 90650

Air West Mechanical is a mechanical service contractor based in southern California, providing air conditioning, plumbing, and other mechanical services to commercial, manufacturing, schools, universities, institutional, and government clients. The company also offers construction and design services, service and maintenance, and government contracts.

Verified


6 miles from Ontario, CA

Specializations (12)

Education

Federal Government

Government

Grocery

Click to reveal
View details

Looking for a HVAC subcontractor with a specific specialization?

Add filters to refine the results:

Arrowhead Mechanical logo

Arrowhead Mechanical

San Bernardino, CA 92404

Arrowhead Mechanical, Inc. is a family-owned company that has been providing HVAC engineering, fabrication, installation, project management, and site supervision services in Southern California for over 50 years. The company specializes in repairing air conditioning systems and also offers sheet metal fabrication services.

Verified


Specializations (3)

Education

Healthcare

Higher education

Click to reveal
View details
Neighbors HVAC logo

Neighbors HVAC

34266 Woodmont Lake Elsinore, CA 92532

Neighbors HVAC delivers quality on-time service techs you can trust to improve the comfort and energy savings for your home. Our experienced team is trained and certified with the latest HVAC equipment and can quickly diagnose your system’s problems. We provide expert service on all makes and models of heating and cooling equipment for both residential and commercial use. Neighbors HVAC prides ourselves on delivering affordable HVAC services and won’t sell you parts or services you don’t really need.

Verified


7 miles from Ontario, CA

Specializations (19)

Airport

Casino

Education

Federal Government

Click to reveal
View details
Air-Tec logo

Air-Tec

1606 E Carson St, Carson, CA 90745

Air-Tec is a company with five decades of experience in delivering mechanical construction and commercial HVAC services throughout Southern California and Nevada.

Verified


6 miles from Ontario, CA

Specializations (6)

Airport

Healthcare

Office Building

Restaurant

Click to reveal
View details
AOL Heating & Air logo

AOL Heating & Air

7239 Eton Ave. Canoga Park, CA 91303

Verified


6 miles from Ontario, CA

Specializations (1)

Grocery

Click to reveal
View details
RPB logo

RPB

Bellflower, CA 90706

RPB Inc. is a family-run business providing elite plumbing, heating, and air conditioning services in Los Angeles and Orange County, including Anaheim, Buena Park, Cerritos, Lakewood, Long Beach, and surrounding areas, with a commitment to customer satisfaction and professionalism in maintenance, repairs, and installations.

Verified


6 miles from Ontario, CA

Specializations (7)

Education

Federal Government

Government

Infrastructure

Click to reveal
View details
Eberhard logo

Eberhard

15220 Raymer Street, Van Nuys, CA 91405

Eberhard is a construction company that has been providing quality products and services since its inception in 1945. The company specializes in construction management, roofing, waterproofing, sheet metal, and sustainable solutions, and is committed to supporting local communities and causes.

Verified


6 miles from Ontario, CA

Specializations (12)

Airport

Casino

Education

Federal Government

Click to reveal
View details
Pro West Mechanical logo

Pro West Mechanical

15431 Red Hill Ave STE F, Tustin, CA 92780

Verified


14 miles from Ontario, CA

Specializations (1)

Restaurant

Click to reveal
View details
Air Wave Technologies logo

Air Wave Technologies

6015 Reseda Blvd. Tarzana, CA 91356

Verified


6 miles from Ontario, CA

Specializations (2)

Grocery

Restaurant

Click to reveal
View details
Retrofit Technology logo

Retrofit Technology

3351 S Riverside Ave, Colton, CA 92324

Retrofit Technology, LLC specializes in installing the latest energy-efficient cooling technologies, offering services such as HVAC system replacement, maintenance, and installation for a variety of clients including commercial offices, entertainment venues, and medical facilities.

Verified


Specializations (7)

Financial

Healthcare

Higher education

Hospitality

Click to reveal
View details
Southern California Mechanical logo

Southern California Mechanical

2551 E Ave S G136, Palmdale, CA 93550

Verified


6 miles from Ontario, CA
Click to reveal
View details
Consolidated Mechanical, Air Conditioning & Heating logo

Consolidated Mechanical, Air Conditioning & Heating

3848 E Colorado Blvd #4, Pasadena, CA 91107

Consolidated Mechanical, Air Conditioning & Heating, Inc. is a full-service HVAC provider in Los Angeles County, offering services for over two decades. The company specializes in the installation and service of hydronic cooling and heating systems, and also provides retrofitting, repairs, and design-build services for HVAC systems.

Verified


6 miles from Ontario, CA
Click to reveal
View details
Quality Conservation Services logo

Quality Conservation Services

4751 E. Arrow Hwy. Montclair, CA 91763

Quality Conservation Services (QCS) is an award-winning, licensed contractor with over 20 years of experience specializing in free weatherization, insulation, and energy improvements for residential customers, funded by local gas and electric utilities in California. They offer no-cost energy upgrades and weatherization services to both moderate and low-income families, aiming to reduce utility bills and save energy.

Verified


Specializations (12)

Education

Federal Government

Government

Grocery

Click to reveal
View details
ontario map
Have a project bidding in Ontario, CA?
Upload your plans and reach qualified local subs in Ontario, CA in just a few clicks

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

Browse Subcontractors