Find and Invite the Best Commercial HVAC Contractors in Los Angeles, CA
Access up-to-date, vetted contractor profiles and simplify your bidding process with our modern commercial contractor database.
15 Best HVAC contractors in Los Angeles, CA
Downtobid vets each subcontractor's specialties, capabilities, and contact details for complete accuracy.
California Air Conditioning Systems
Lomita, CA 90717
California Air Conditioning Systems, Inc. is a Southern California-based HVAC service provider offering a wide range of services including installations, repairs, and preventative maintenance for residential, commercial, and industrial clients, as well as specializing in air quality solutions and temporary portable units.
Verified
Active contractor
Specializations (19)
Education
Federal Government
Financial
Government

Integrated Mechanical Systems
2390 Bateman Ave, Duarte, CA 91010
For over 50 years, Therma has been delivering client-driven mechanical solutions as one of California's leading commercial HVAC contractors.
Verified
Active contractor
Specializations (7)
Data Center
Education
Fitness
Grocery

Dawson Company
Pomona, CA 91768
Dawson Company is a trusted plumbing and HVAC supply resource for building owners, facilities managers, contractors, consulting engineers, and wholesalers in the residential, industrial, and commercial construction markets. The company also embraces new technological innovations and market demands for sustainable and efficient systems within the commercial HVAC market.
Verified
Specializations (13)
Airport
Financial
Fitness
Grocery
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K & S Air Conditioning
143 E Meats Ave, Orange, CA 92865
K & S Air Conditioning, Inc., founded in 1981, is a small commercial heating, air conditioning, and ventilation contracting company that has grown to be one of California's largest open-shop mechanical contractors, offering quality HVAC installations and designs at competitive prices with a commitment to honesty and integrity.
Verified
Active contractor
Specializations (4)
Healthcare
Office Building
Restaurant
Retail - General

Wave 9 Air
Santa Fe Springs, CA 90670
Wave 9 Air, Inc. is a Southern California-based company with over 30 years of experience in residential and commercial heating, ventilation, and air conditioning services. The company specializes in indoor air quality management, design, installation, construction, service repair, and maintenance.
Verified
High reply rate
Active contractor
Specializations (3)
Education
Office Building
Restaurant

Energy Options
7720 Madison St. Paramount, CA 90723
A full service Cooling Tower Contractor specializing in..Mechanical Contracting..Cooling Tower Installations..Reconstruction & Upgrades..Sandblasting & Coats..Boilers, Chillers & Industrial Piping..Providing & Installing Rental Towers..BAC, Marley, Evapco, Amcot, Recold and Field Erected Cooling Towers
Verified
Active contractor
Specializations (1)
Grocery

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
Active contractor
Specializations (12)
Education
Federal Government
Government
Grocery
West Coast Chief Repair
355 N. Fairfax Ave. Los Angeles, CA 90036
West Coast Chief Repair specializes in the installation, maintenance, and repair of major home and commercial appliances, as well as air conditioning and HVAC systems in the Greater Los Angeles, Orange County, and Ventura County areas. Established in 1995, the company is fully licensed and insured, holds an A+ rating with the Better Business Bureau, and offers same-day service, professional technicians, and financing options for repairs and appliance purchases.
Verified
Active contractor
Specializations (13)
Federal Government
Financial
Fitness
Government

Pro West Mechanical
15431 Red Hill Ave STE F, Tustin, CA 92780
Trust Pro West Mechanical, Inc. for top-tier residential and commercial HVAC services in Orange County. Maintenance, repair, installation—done right every time!
Verified
Active contractor
Specializations (1)
Restaurant
Coast 2 Coast Plumbing
P.O. Box 774 Stantion, CA 90680
Coast 2 Coast Plumbing is a full-service commercial, mechanical, and plumbing company specializing in sewer maintenance, fixture maintenance, storm drain system maintenance, and various plumbing repairs including backflow testing, pump systems, and sewer line repairs. With 14 years of experience servicing Southern and Northern California, they offer 24/7 emergency services and handle everything from routine maintenance to burst pipes, holding California State License #900704.
Verified
Active contractor

Southern California Mechanical
2551 E Ave S G136, Palmdale, CA 93550
Southern California Mechanical is a highly rated air conditioning HVAC services and installation company servicing Palmdale, CA.
Verified
Active contractor
Mission Aire
420 W. Lambert Rd. Suite J Brea, CA 92821
Mission Aire Corporation is a local HVAC contractor based in Orange County, specializing in heating and air conditioning services for commercial and residential clients across Southern California, including LA County, San Diego, Riverside, and San Bernardino Counties. They are recognized as a Service Disabled Veteran Owned Small Business and offer a range of services from installations to emergency repairs, with expertise in various systems and brands.
Verified
High reply rate
Active contractor
FIME HVAC Supply
2606 Durfee Ave, El Monte, CA 91732
FIME HVAC Supply is a licensed HVAC contractor serving both commercial and residential clients across California, Nevada, and Arizona. The company specializes in the design, installation, and maintenance of HVAC systems, including mini-split and central air systems, heating units, full ductwork, walk-in coolers, refrigeration systems, and commercial ventilation solutions. FIME also offers design-build and retrofit services tailored to client specifications, along with preventive maintenance and emergency repair.
Verified
Active contractor
Penn Air Group
Cypress, CA 90630
Penn Air Group is a company that provides HVAC services, including testing, balancing, remediation, and indoor air quality improvement. They also offer services in infection control, environmental and industrial hygiene, kitchen exhaust, and government contracts.
Verified
Active contractor
Specializations (10)
Airport
Federal Government
Government
Healthcare

Service Air Conditioning
18432 W Oxnard St, Tarzana, CA 91356
Professional and reliable Air conditioning and Heating Services
Verified
Active contractor
Good to know insights about HVAC contractors in Los Angeles, CA
Bidding difficulty
High
Average response time
3 days
Average interest distance
40 miles
Average lead time to bid
17 days
How far are HVAC contractors in Los Angeles, CA willing to travel?
Every trade and region has difference sensitivity to distance. We grouped distances into 4 categories to help you understand the distribution of 60 bid packages. The ratios of bidding contractors per distance group are 18%, 9%, 9%, and 0%.
How much lead time do HVAC contractors in Los Angeles, CA need to bid?
Every trade and region has difference sensitivity to due time. We grouped due times into 3 categories to help you understand the distribution of 38 bid packages. The ratios of bidding projects per due time group are 20%, 13%, and 38%.
Commercial HVAC contractors insights in Los Angeles, CA
Explore 589 verified HVAC contractors in Los Angeles, CA. Our platform analyzes real bidding activity, response times, and project preferences to help you make informed decisions. These insights are based on actual market data to streamline your contractor selection process.
Total contractors
589 contractors
Total union contractors
20 union contractors
Total non-union contractors
420 non-union contractors
Total minority-owned businesses
20 minority-owned businesses
Total women-owned businesses
6 women-owned businesses
What certifications do HVAC contractors hold?
Professional certifications and licenses held by HVAC contractors in Los Angeles, CA, including OSHA safety training, trade-specific licenses, and manufacturer certifications required for specific project types.
What project types are HVAC contractors bidding on?
Project types that HVAC contractors in Los Angeles, CA are actively bidding on, including commercial office buildings, healthcare facilities, educational institutions, retail spaces, and industrial facilities.
What project owners are HVAC contractors bidding for?
Top general contractors and project owners that HVAC contractors in Los Angeles, CA are bidding for, showing which construction firms and developers are most active in the local market.
Maxi
Save A Lot
Gap
Milestones
Costco
Home Depot
Marriott
Hyatt
Hampton
HVAC projects insights in Los Angeles, CA
Explore 42 HVAC construction projects in Los Angeles, CA. Our analysis covers project sizes, building types, and market activity patterns to help contractors make strategic bidding decisions based on actual project data.
Total projects
42 projects
Average square footage
9,333 square feet
Maximum square footage
59,029 square feet
What square footage ranges are HVAC projects in?
Distribution of HVAC project sizes in Los Angeles, CA by square footage. Small projects include tenant improvements and retail spaces. Medium projects encompass commercial buildings and office spaces. Large projects represent major developments requiring significant resources and bonding capacity.
What construction sectors are HVAC projects in?
Building types and construction sectors for HVAC projects in Los Angeles, CA, including commercial office buildings, healthcare facilities, educational institutions, retail spaces, industrial facilities, and government projects.
Why Downtobid is the Go-To Platform for Contractors
"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 detailed, correct quotes that we're looking for from you guys as opposed to maybe other places."
Why Downtobid is the Go-To Platform for Contractors
"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 detailed, correct quotes that we're looking for from you guys as opposed to maybe other places."
FAQs
How can Downtobid help me find the best commercial HVAC contractors in Los Angeles, CA?
Downtobid helps you find the best HVAC contractors in Los Angeles, 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 Los Angeles, 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 Los Angeles, 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 Los Angeles, 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!
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