Find and Invite the Best Commercial HVAC Contractors in Stamford, CT
Tired of outdated contact lists and the hassle of calling to check bidding intent?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 Stamford, CT
Downtobid vets each subcontractor's specialties, capabilities, and contact details for complete accuracy.
With Pride HVAC
90 Verdi St. Farmingdale, NY 11735
With Pride HVAC ensures that your HVAC system keeps working flawlessly. No matter what your heating or air conditioning requirements, we can help.
Verified
Specializations (8)
Government
Healthcare
Hospitality
Municipal Government
Specializations (14)
Car Dealership
Distribution Center
Education
Federal Government
AAA Refrigeration Service
Bronx, NY 10453
Founded on March 18, 1937, AAA Refrigeration Service, Inc. is a family-owned business incorporated in the state of New York, specializing in refrigeration/HVAC services, energy management, and door repairs, and has been serving for over 85 years with a commitment to quality service and education.
Verified
Specializations (5)
Grocery
Higher education
Office Building
Retail - General
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United Air Conditioning
27-20 Skillman Ave, Long Island City, NY 11101
United Air Conditioning is a leading HVAC contractor in the greater New York City metropolitan area, providing technical expertise and quality service in all stages of the process, from preconstruction planning to installation and maintenance. With over three decades of experience, the company operates out of Long Island City and employs a team of engineers, project managers, and technicians to deliver high-quality mechanical systems for a variety of commercial and residential buildings.
Verified
Specializations (8)
Education
Government
Healthcare
Higher education
Specializations (12)
Airport
Education
Financial
Government
Sunrise Power Solutions
899 Motor Pkwy, Hauppauge, NY 11788
Sunrise Power Solutions is a family-owned and operated company based in New York, specializing as a leading solar carport installer and providing a range of services including electrical and mechanical contracting, PV & EV charging installation, combined heat & power (CHP), and energy storage solutions (ESS) for municipal, K-12 educational, and manufacturing markets.
Verified
Specializations (9)
Correctional
Education
Federal Government
Government
True Mechanical
20 Feldland St, Bohemia, NY 11716
True Mechanical Corp is an HVAC services provider based in Bohemia, NY, with over three decades of experience offering residential and commercial heating and air conditioning systems, maintenance, and installations, as well as indoor air quality services and emergency response across Long Island.
Verified
Specializations (2)
Federal Government
Government
Mamre HVAC
97 W Jericho Tpke, Huntington, Town of, NY 11746
Mamre HVAC is a trusted provider of commercial heating and air conditioning systems in the New York Tri-State Area and Long Island, offering innovative and high-quality HVAC solutions, maintenance, and repairs for over 15 years.
Verified
Specializations (4)
Education
Healthcare
Religious
Retail - General
HAE AIR
180 Gary Way, Ronkonkoma, NY 11779
HAE AIR, Inc. is a commercial HVAC company with over 30 years of experience, specializing in design, installation, service, and fabrication of HVAC systems for a variety of projects in Manhattan, Brooklyn, Queens, and Long Island. They are currently expanding with a new state-of-the-art facility in Bellport, NY, and have a portfolio that includes work on hotels, theaters, and other commercial buildings.
Verified
Specializations (8)
Hospitality
Museum
Office Building
Restaurant
Specializations (5)
Education
Hospitality
Office Building
Retail - General
Specializations (10)
Education
Grocery
Healthcare
Higher education
All Seasons Air Conditioning
West Babylon, NY 11704
All Seasons Air Conditioning is a full-service HVAC company serving the comfort needs of residential and commercial owners across Nassau, Suffolk, Queens, and Fire Island, NY since 1968. As the leader in the HVAC business in West Babylon, we have gained loyal customers through the years by providing unprecedented services, knowledge, and extensive experience in heating, cooling, and indoor air quality solutions.
Verified
Specializations (4)
Hospitality
Museum
Office Building
Warehouse
Pro-Tec Refrigeration
Westbury, NY 11590
Pro-Tec Refrigeration, LLC is a company specializing in energy management, offering control systems and equipment to help save energy and reduce costs, with services available 24/7 in Phoenix, AZ.
Verified
Specializations (3)
Grocery
Healthcare
Office Building
OSI Comfort Specialists
Oceanside, NY 11572
OSI Comfort Specialists: Comfort You Can Count On! See what a difference four generations of experience can make. Here in the New York City area, we’re used to seeing all kinds of businesses come and go. You discover a perfect date-night restaurant, only to find it replaced with a gastropub a few months later.
Verified
Specializations (8)
Education
Federal Government
Government
Grocery
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 Stamford, CT?
Downtobid is a platform that helps you find HVAC contractors in Stamford, CT and submit bid requests for your projects. You provide project details, and the contractors respond with their bids through the platform.
Requesting bids from Stamford, CT-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 Stamford, CT 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 Stamford, CT 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 Stamford, CT
Total contractors
2025 contractors
Total union contractors
112 union contractors
Total non union contractors
1246 non union contractors
Total minority owned businesses
98 minority owned businesses
Total women owned businesses
36 women owned businesses
Average response time
6 days
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