Find and Invite the Best Commercial HVAC Contractors in San Francisco, 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Tired of outdated contact lists and the hassle of calling to check bidding intent?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 San Francisco, CA
Downtobid vets each subcontractor's specialties, capabilities, and contact details for complete accuracy.
Marin Mechanical II
San Rafael, CA 94901
Marin Mechanical II, Inc. is a Marin County-based residential and commercial plumbing company with over three decades of industry experience, known for its quality craftsmanship in ground-up construction, renovations, and remodeling, including hydronic heating and cooling systems.
Verified
Specializations (3)
Education
Higher education
Religious
Fairview Heating & Air Conditioning
100 Brownstone Rd., Ste. A Oakley, CA 94561
Fairview Heating & Air Conditioning, Inc. is an HVAC company serving the Oakley, CA area since 1988, offering a range of services including air conditioning, heating, ductwork, and indoor air quality solutions, as well as American-made products tailored to the local climate.
Verified
Specializations (9)
Education
Financial
Government
Grocery
Monterey Mechanical
San Leandro, CA 94621
Monterey Mechanical specializes in complex water/wastewater, industrial facilities, metals fabrication and installation, HVAC, and odor control projects, and has built a reputation as one of the most reliable and respected construction contractors in Northern California over the last 80 years. The company is known for its commitment to excellence, safety, honesty, accountability, leadership, and strong client relationships.
Verified
Specializations (14)
Airport
Education
Federal Government
Financial
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Bel Air Mechanical
Oakley, CA 94561
Bel Air Mechanical is a trusted HVAC service provider in the Bay Area since 2004. The company also offers general construction and value engineering services.
Verified
Specializations (2)
Education
Higher education
DHR Mechanical
Oakley, CA 94561
DHR Mechanical, Inc. is a premier HVAC and sheet metal contractor based in Oakley, California, offering services such as installations and repairs with a focus on customer satisfaction.
Verified
Downing Heating
3070 Kerner Blvd. Ste. K San Rafael, CA 94901
Downing Heating Inc. is an HVAC company providing heating and air conditioning services for both commercial and residential projects in Marin and Sonoma Counties since 1984. They offer a range of services including maintenance, installation, and servicing of various HVAC systems, and are a proud Union Shop with Smart Local No. 104.
Verified
Specializations (1)
Healthcare
Agbayani Construction
6014 Egret Ct. Benicia, CA 94510
Agbayani Construction Corporation (ACC) is a multi-faceted construction firm with over 30 years of experience, specializing in tenant improvement construction, HVAC solutions, and serving government and civic projects with a commitment to high customer satisfaction and industry recognition through numerous awards.
Verified
City Mechanical
Hercules, CA 94547
City Mechanical, Inc. is a commercial HVAC service provider that has been serving the San Francisco Bay Area since 1989. The company offers a range of services including heating, ventilation, air conditioning, refrigeration, plumbing, and energy management system installations and repairs.
Verified
Specializations (4)
Education
Healthcare
Office Building
Religious
Bay City Mechanical
Richmond, CA 94530
Founded in 1991 by Helge Theiss-Nyland, Bay City Mechanical is one of the largest and most innovative design and build mechanical engineering firms in California. The company offers a full suite of design and build services, including HVAC, commercial refrigeration, architectural sheet metal, pipe fitting, and building automation, to leading architects and construction firms in the Bay Area.
Verified
Specializations (10)
Airport
Education
Government
Healthcare
Martinez Sheet Metal
Martinez, CA 94553
Martinez Sheet Metal, Inc. is a family-owned company with over 50 years of experience in providing HVAC, sheet metal, control system and process piping services. The company offers design, manufacturing, installation and maintenance services to commercial, industrial and residential clients in the Bay Area.
Verified
Specializations (1)
Healthcare
Lias Mechanical
Hayward, CA 94541
Lias Mechanical Inc is a commercial HVAC builder based in Northern California's Bay Area. Since 1993, they have been providing technical expertise and construction services to general contractors across multiple sectors, including affordable housing, commercial, educational, historic, medical, office, public, multi-family, and modular projects.
Verified
Specializations (12)
Education
Government
Grocery
Healthcare
CAMS
1742 Clement Ave. Alameda, CA 94501
CAMS is a minority and women-owned small business that provides full-service commercial HVAC services, including new installations, retrofits, and repairs, in Northern California. They offer 24-hour emergency services and are a state-licensed HVAC contractor based in Alameda, CA.
Verified
Specializations (6)
Federal Government
Government
Healthcare
Municipal Government
Frank M. Booth
San Francisco, CA 94080
Frank M. Booth is an employee-owned company with over 110 years of history, specializing in providing the best mechanical engineering and construction services, with a focus on understanding client goals, applying top engineering solutions, and performing construction with safety and speed.
Verified
Specializations (16)
Airport
Casino
Correctional
Education
Fault Line Plumbing
160 South Linden Avenue South San Francisco, CA 94080
Fault Line Plumbing, Inc. is an established plumbing contractor since 1997, specializing in new construction plumbing, fire sprinkler services, and mechanical systems such as steam and hydronic systems throughout Northern California.
Verified
Cal-Bay Service
4740 E 2nd St, Benicia, CA 94510
Cal-Bay Service, Inc. is a family-owned and operated HVAC service provider based in Benicia, California. Since 1989, the company has offered a range of mechanical services including commercial and residential air conditioning, heating, ventilation, air purification systems, and more, serving areas including Solano, Contra Costa, Napa, Sonoma, and Marin Counties.
Verified
Specializations (1)
Office Building
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 San Francisco, CA?
Downtobid is a platform that helps you find HVAC contractors in San Francisco, 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 San Francisco, 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 San Francisco, 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 San Francisco, 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 San Francisco, CA
Total contractors
245 contractors
Total union contractors
18 union contractors
Total non union contractors
134 non union contractors
Total minority owned businesses
10 minority owned businesses
Total women owned businesses
6 women owned businesses
Average response time
3 days
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