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Tired of outdated contact lists and the hassle of calling to check bidding intent?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.
75 Verified HVAC companies in Ontario, CA
Downtobid vets each subcontractor's specialties, capabilities, and contact details for complete accuracy.
Zodiac Heating & Air Conditioning
14411 Gilmore St. Van Nuys, CA 91401
Zodiac Heating & Air Conditioning, Inc. is an award-winning HVAC contractor serving residential and commercial clients in Los Angeles and the San Fernando Valley since 1984, offering a full range of services including sales, installation, service, repair, and maintenance of heating and air conditioning systems.
Verified
Specializations (5)
Financial
Healthcare
Hospitality
Office Building
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
Specializations (7)
Education
Federal Government
Government
Infrastructure
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
Specializations (12)
Airport
Casino
Education
Federal Government
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Specializations (1)
Restaurant
Specializations (2)
Grocery
Restaurant
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
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
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
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
Specializations (16)
Airport
Education
Federal Government
Government
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
Specializations (19)
Airport
Casino
Correctional
Education
Specializations (2)
Grocery
Hospitality
MightyServ
CA 91367
MightyServ is a customer-focused heating and cooling company that has been serving the Greater San Fernando Valley and Los Angeles areas since 1963, offering a range of HVAC services including installation, repair, and maintenance, with a commitment to high-quality service and customer satisfaction.
Verified
Specializations (9)
Education
Federal Government
Financial
Government
Inland Valley Heating & Air Conditioning
35217 Mountain View St. Yucaipa, CA 92399
Inland Valley Heating & Air Conditioning is a top HVAC contractor serving the Inland Empire, offering a comprehensive range of services for residential and commercial air conditioning and heating systems, including installation, repair, and maintenance, with over 10 years of experience in the industry.
Verified
Specializations (3)
Healthcare
Higher education
Office Building
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
Specializations (5)
Healthcare
Office Building
Restaurant
Retail - General
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!"
"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."
""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.""
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!"
"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."
""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.""
FAQs
What is Downtobid and how can it help find HVAC professionals 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.
Requesting bids from Ontario, CA-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 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.
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 Ontario, CA 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 Ontario, CA
Total contractors
555 contractors
Total union contractors
16 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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