Find and Invite the Best Commercial HVAC Contractors in Appleton, WI
Access up-to-date, vetted contractor profiles and simplify your bidding process with our modern commercial contractor database.
15 Best HVAC contractors in Appleton, WI
Downtobid vets each subcontractor's specialties, capabilities, and contact details for complete accuracy.
Bay Mechanical Systems
3865 Norrie Dr, New Franken, WI 54229
Bay Mechanical Systems is a company with years of experience in addressing heating concerns, offering a variety of options for heating and A/C needs, with discounts for residential customers seeking comfort and quality at an affordable price.
Verified
Specializations (1)
Retail - General

Schaus Mechanical
2901 Calumet Ave, Manitowoc, WI 54220
Schaus Mechanical is a full-service heating, air conditioning, and plumbing company based in Manitowoc, WI, offering a wide range of services including HVAC installation, repair, maintenance, and indoor air quality solutions for both residential and commercial clients.
Verified
Marx Mechanical
4535 State Rd. 91 Oshkosh, WI 54904
Marx Mechanical is a trusted HVAC company offering expert heat pump, furnace, and air conditioning repair and installation services, along with maintenance plans to ensure year-round home comfort. They also provide a range of products including Daikin heat pumps, furnaces, fireplaces, water heaters, and boilers, with a focus on energy-efficient and technologically advanced solutions.
Verified
Looking for a HVAC subcontractor with a specific specialization?
Add filters to refine the results:
CR Fochs Electrical Contractors
2770 Towne Ct. Neenah, WI 54956
CR Fochs Electrical Contractors is a full-service electrical contractor based in Northeast Wisconsin, offering a range of services for commercial, industrial, and residential customers with a focus on quality customer service and competitive rates. As a family-owned and operated business with over 25 years of experience, they emphasize customer satisfaction and are certified Generac dealers.
Verified
Active contractor
August Winter & Sons
2525 N Roemer Rd, Appleton, WI 54911
August Winter & Sons is a mechanical contractor and fabricator specializing in HVAC, plumbing, water/wastewater, and custom steel fabrication, including ASME pressure vessels and pipe fabrication. They focus on using the latest technology and a respectful, value-adding approach to their projects, with a history dating back to 1929.
Verified
Specializations (13)
Airport
Education
Healthcare
Higher Education
All Temperature Systems
N2505 State Rd. 22 Waupaca, WI 54981
All Temperature Systems, LLC is a company with over 25 years of experience, specializing in heating, air conditioning, and commercial refrigeration services, including emergency services, for residential and commercial clients in the Waupaca, WI area.
Verified
High reply rate
Active contractor
Tweet/Garot
325 Reid St, De Pere, WI 54115
Tweet/Garot is a family-owned mechanical contracting business with over 120 years of experience, specializing in the design, engineering, fabrication, and installation of mechanical systems, including plumbing, HVAC, and custom equipment, with a commitment to exceptional customer service and the ability to work around demanding schedules across various markets.
Verified
High reply rate
Active contractor
Manawa Heatin
N6628 State 22 Manawa, WI 54949
Manawa Heating, LLC is a family-owned HVAC service provider in Manawa, WI, offering free estimates, emergency services, and over 30 years of experience in heating and cooling installation, repair, and air quality improvement.
Verified
High reply rate
Active contractor
Bay Heating Service
2020 Radisson St. Green Bay, WI 54302
Bay Heating Service is an HVAC company based in Green Bay, WI, providing residential and commercial heating and air conditioning services, including emergency services, since 1949.
Verified

Ahern
Appleton, Wisconsin 54914
J.F. Ahern Co. is a multi-trade service provider specializing in pipe fabrication, mechanical, fire protection contracting, and offering expertise in modular prefabrication and preventive maintenance for a variety of industries. Founded in 1880, the company has grown to become one of the largest and most respected specialty contractors in the nation, with a strong commitment to client satisfaction and social responsibility.
Verified
Shoemaker
350 Main St. P.O. Box 67 Scandinavia, WI 54977-0067
Shoemaker Companies, based in Scandinavia, WI, offers a range of services including construction, remodeling, electrical work, heating and cooling, and plumbing.
Verified
High reply rate
Active contractor
A&J Mechanical Contractors
820 Coronis Way Green Bay, WI 54304
A&J Mechanical Contractors, Inc. is a family-owned business based in Northeast Wisconsin, providing a wide range of mechanical contracting services including plumbing, HVAC, process piping, and fabrication since 1991.
Verified
Berkovitz Mechanical
3757 Copper Oak Cir. Green Bay, WI 54313
Berkovitz Mechanical is a company with over 80 years of combined experience, specializing in residential and commercial HVAC services, including installations, repairs, and maintenance of heating and cooling units as well as rooftop units.
Verified
High reply rate
Active contractor

Johnson & Jonet Mechanical
1800 Sal St, Green Bay, WI 54302
Johnson & Jonet Mechanical is a full-service mechanical contractor based in Green Bay, Wisconsin, specializing in commercial and institutional plumbing, HVAC, service energy management installations, and process piping projects since June 1999. The company is committed to safety, providing extensive training and equipment to protect its employees, and offers a range of services including design/build, system analysis, and technical services for boilers, chillers, and rooftop equipment.
Verified
Kurt Zentner & Sons
2860 Oregon St. Oshkosh, WI 54902
Kurt Zentner & Sons, Inc. is a plumbing, heating, and cooling service provider with nearly 100 years of experience, based in Oshkosh, WI, offering a range of services for both commercial and residential customers.
Verified
High reply rate
Active contractor
Good to know insights about HVAC contractors in Appleton, WI
Bidding difficulty
High
Average response time
4 days
Average interest distance
51 miles
Average lead time to bid
19 days
How far are HVAC contractors in Appleton, WI 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 13 bid packages. The ratios of bidding contractors per distance group are 50%, 0%, 0%, and 0%.
How much lead time do HVAC contractors in Appleton, WI 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 7 bid packages. The ratios of bidding projects per due time group are NaN%, 0%, and 50%.
Commercial HVAC contractors insights in Appleton, WI
Explore 1348 verified HVAC contractors in Appleton, WI. 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
1348 contractors
Total union contractors
145 union contractors
Total non-union contractors
931 non-union contractors
Total minority-owned businesses
23 minority-owned businesses
Total women-owned businesses
13 women-owned businesses
What certifications do HVAC contractors hold?
Professional certifications and licenses held by HVAC contractors in Appleton, WI, 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 Appleton, WI 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 Appleton, WI are bidding for, showing which construction firms and developers are most active in the local market.
Ford
Save A Lot
Burlington
Gap
Home Depot
Four Seasons
Meijer
Milestones
Sears
HVAC projects insights in Appleton, WI
Explore 51 HVAC construction projects in Appleton, WI. 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
51 projects
Average square footage
6,251 square feet
Maximum square footage
24,000 square feet
What square footage ranges are HVAC projects in?
Distribution of HVAC project sizes in Appleton, WI 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 Appleton, WI, 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 Appleton, WI?
Downtobid helps you find the best HVAC contractors in Appleton, WI and submit bid requests for your projects. You provide project details, and the contractors respond with their bids through the platform.
Requesting bids from Appleton, WI-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 Appleton, WI 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 Appleton, WI 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!
Browse the Best Contractors