Find and Invite the Best Commercial HVAC Contractors in Hempstead, NY

Tired of outdated contact lists and the hassle of calling to check bidding intent?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


Search location

75 Verified HVAC companies in Hempstead, NY

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

NYC SMACNA logo

NYC SMACNA

Brooklyn, NY 11212

NYC SMACNA members are heating, ventilating, air conditioning (HVAC) and sheet metal experts. Representing nearly 70 firms, our members are leaders in safety, quality assurance and excellence, regardless of the project’s size, scope and complexity.

Verified


14 miles from Hempstead, NY

Specializations (7)

Education

Federal Government

Government

Higher education

Website

Call

WebsiteCall
Click to reveal
View details
R.A.M.S. Mechanical logo

R.A.M.S. Mechanical

140 58th St Bldg B-4D Brooklyn, NY 11220

R.A.M.S. Mechanical Inc. is a one-stop HVAC contracting company based in Brooklyn, New York, specializing in heating, ventilation, and air conditioning services, including in-house sheet metal and piping fabrication, fitting, installation, controls, and maintenance.

Verified


14 miles from Hempstead, NY

Specializations (6)

Airport

Education

Healthcare

Military

Click to reveal
View details
JDP Mechanical logo

JDP Mechanical

24-39 44th St. Astoria, NY 11103

Verified


6 miles from Hempstead, NY

Specializations (14)

Car Dealership

Distribution Center

Education

Federal Government

Click to reveal
View details

Looking for a HVAC subcontractor with a specific specialization?

Add filters to refine the results:

AAA Refrigeration Service logo

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


14 miles from Hempstead, NY

Specializations (5)

Grocery

Higher education

Office Building

Retail - General

Click to reveal
View details
United Air Conditioning logo

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


6 miles from Hempstead, NY

Specializations (8)

Education

Government

Healthcare

Higher education

Click to reveal
View details
DeMonte Plumbing logo

DeMonte Plumbing

367 Veterans Memorial Hwy, Commack, NY 11725 USA

Verified


10 miles from Hempstead, NY
Click to reveal
View details
DP Wolff logo

DP Wolff

143 Bedford Road, Katonah, New York 10536

Verified


16 miles from Hempstead, NY

Specializations (12)

Airport

Education

Financial

Government

Click to reveal
View details
Sunrise Power Solutions logo

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


10 miles from Hempstead, NY

Specializations (9)

Correctional

Education

Federal Government

Government

Click to reveal
View details
True Mechanical logo

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


10 miles from Hempstead, NY

Specializations (2)

Federal Government

Government

Click to reveal
View details
Mamre HVAC logo

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


10 miles from Hempstead, NY

Specializations (4)

Education

Healthcare

Religious

Retail - General

Click to reveal
View details
HAE AIR logo

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


10 miles from Hempstead, NY

Specializations (8)

Hospitality

Museum

Office Building

Restaurant

Click to reveal
View details
Interstate Air Conditioning & Heating logo

Interstate Air Conditioning & Heating

1133 Broadway, Suite 706, New York, NY 10010

Verified


18 miles from Hempstead, NY

Specializations (10)

Education

Grocery

Healthcare

Higher education

Click to reveal
View details
All Seasons Air Conditioning logo

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


10 miles from Hempstead, NY

Specializations (4)

Hospitality

Museum

Office Building

Warehouse

Click to reveal
View details
Pro-Tec Refrigeration logo

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

Click to reveal
View details
OSI Comfort Specialists logo

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

Click to reveal
View details
hempstead map
Have a project bidding in Hempstead, NY?
Upload your plans and reach qualified local subs in Hempstead, NY 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

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 can it help find HVAC professionals in Hempstead, NY?

Downtobid is a platform that helps you find HVAC contractors in Hempstead, NY and submit bid requests for your projects. You provide project details, and the contractors respond with their bids through the platform.


Requesting bids from Hempstead, NY-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 Hempstead, NY 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 Hempstead, NY 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 Hempstead, NY

Total contractors

2112 contractors

Total union contractors

113 union contractors

Total non union contractors

1338 non union contractors

Total minority owned businesses

98 minority owned businesses

Total women owned businesses

36 women owned businesses

Average response time

5 days

Browse Subcontractors