Find and Invite the Best Commercial HVAC Contractors in Oshkosh, WI

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75 Verified HVAC companies in Oshkosh, WI

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

Kettle Moraine Heating & Air Conditioning logo

Kettle Moraine Heating & Air Conditioning

W325 S1767 Mickle Rd Delafield, WI 53018

Kettle Moraine Heating & Air Conditioning LLC is a third-generation family-owned business that has been serving Southeastern Wisconsin since 1987, providing a comprehensive range of heating, air conditioning, electrical, plumbing, and radon services. They are known for their 5-star service commitment to excellence and offer free in-home estimates, responsive service, and quality repairs with high-quality equipment from respected brands.

Verified


62 miles from Oshkosh, WI

Specializations (12)

Education

Federal Government

Financial

Fitness

Website

Call

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Southport Home Services logo

Southport Home Services

Wausau, WI 54401

Southport Home Services is a provider of comprehensive plumbing and HVAC services in Southeast Wisconsin, offering repairs, maintenance, and installation of heating, cooling, and indoor air quality systems since 2005. The company prides itself on exceptional customer service, 24/7 availability for emergencies, and a satisfaction guarantee for its services and installations.

Verified


59 miles from Oshkosh, WI

Specializations (9)

Airport

Education

Financial

Government

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Riverside Plumbing logo

Riverside Plumbing

N44 W 32810 Watertown Plank Road Suite B Nashotah, WI 53058

Riverside Plumbing, LLC is a full-service plumbing, heating, and cooling contractor based in Southeast Wisconsin, offering a wide range of services for residential, commercial, and industrial buildings, including emergency services, new construction, remodeling, and repair services.

Verified


62 miles from Oshkosh, WI

Specializations (1)

Infrastructure

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Badger State Heating & Air Conditioning logo

Badger State Heating & Air Conditioning

N63W23565 Silver Spring Dr. Suite 190 Sussex, WI 53089

Badger State Heating & Air Conditioning is a HVAC service provider with over 25 years of experience, offering repair, replacement, and maintenance for both residential and commercial systems, as well as a range of products and a commitment to exceptional customer service.

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62 miles from Oshkosh, WI
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Certified Refrigeration & Mechanical logo

Certified Refrigeration & Mechanical

5817 Femrite Dr. Madison, WI 53718

Certified Refrigeration & Mechanical, Inc. is a Wisconsin-based company specializing in the design, engineering, installation, optimization, retrofits, service, and maintenance of refrigeration and HVAC systems, as well as equipment sales, serving the entire state of Wisconsin and the Northern Suburbs of Illinois.

Verified


64 miles from Oshkosh, WI
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R&W Heating & Cooling logo

R&W Heating & Cooling

Milton, WI 53563

R&W Heating & Cooling, Inc. is a local HVAC service provider in Milton, WI, offering a wide range of heating and cooling services including repair, installation, and maintenance for residential and commercial clients since 1960.

Verified


86 miles from Oshkosh, WI

Specializations (2)

Healthcare

Museum

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J.M. Brennan logo

J.M. Brennan

6430 Ronald Reagan Ave, Madison, WI 53704

J.M. Brennan, Inc., established in 1932 and based in Milwaukee, WI, is a full-service mechanical contractor serving Southeastern Wisconsin with expertise in HVAC, plumbing, process piping, controls, industrial sheet metal, and 24/7 emergency service.

Verified


64 miles from Oshkosh, WI

Specializations (13)

Correctional

Education

Federal Government

Financial

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K. Kelly logo

K. Kelly

2057 Bellevue St. Green Bay, WI 54311

K. Kelly, Inc. is a company based in Green Bay, Northeast Wisconsin, providing a range of services including heating, cooling, plumbing, indoor air quality, and radon services for new home construction, residential, and commercial HVAC needs.

Verified


28 miles from Oshkosh, WI
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Johnson & Jonet Mechanical logo

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


28 miles from Oshkosh, WI
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P.L. Freeman logo

P.L. Freeman

2836 N. Brookfield Rd., Ste. 5 Brookfield, WI 53045

Since 1981, P.L. Freeman Co. has been a recognized leader in various trades including HVAC, plumbing, electrical, and roofing, with a commitment to excellence and a mission to deliver the highest quality service. The company prides itself on integrity, expertise, and a customer-oriented approach, maintaining a strong presence in the industry for over 32 years.

Verified


62 miles from Oshkosh, WI
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Pratt Brothers logo

Pratt Brothers

810 N. Parkway St. Jefferson, WI 53549

Pratt Brothers is a Jefferson-based HVAC contractor founded in 2011, offering a range of heating and cooling services, maintenance, and products, including high-end Lennox systems, with a commitment to efficient, reliable performance and customer satisfaction.

Verified


58 miles from Oshkosh, WI
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Square One Heating & Cooling logo

Square One Heating & Cooling

616 Droster Ave. Burlington, WI 53105

Square One Heating & Cooling is a family-owned and operated business based in Union Grove and Burlington, Wisconsin, providing residential and commercial 24-hour heating and cooling services for over 10 years. As a factory-authorized Bryant dealer, they offer a range of HVAC products and services, including installation, emergency service, and innovative solutions like geo-thermal and solar-powered systems.

Verified


89 miles from Oshkosh, WI
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Burkhardt Heating, Cooling, Plumbing & Electric logo

Burkhardt Heating, Cooling, Plumbing & Electric

8232 N. Teutonia Ave. Milwaukee, WI 53209

Burkhardt Heating, Cooling, Plumbing & Electric is a family-owned and locally operated company based in Milwaukee, WI, that has been providing heating, cooling, plumbing, and electrical services to local families since 1961.

Verified


65 miles from Oshkosh, WI
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JC's Heating & Electric logo

JC's Heating & Electric

1776 10th Ave. P.O.Box 54 Friendship, WI 53934

JC's Heating & Electric is a versatile contractor based in Adams, WI, offering a range of services including heating (HVAC), air conditioning, electrical work, and air duct cleaning, with a focus on both new construction and upgrades. They provide 24-hour emergency services and have been serving Adams County and the central Wisconsin area for over 18 years.

Verified


59 miles from Oshkosh, WI
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RH Heating & Air Conditioning logo

RH Heating & Air Conditioning

3683 E. Ryan Rd. Oak Creek, WI 53154

RH Heating & Air Conditioning is an HVAC service provider based in Oak Creek, Wisconsin, offering heating, air conditioning, and air quality services to the Southeastern Wisconsin area for over 50 years.

Verified


65 miles from Oshkosh, WI
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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 Oshkosh, WI?

Downtobid is a platform that helps you find HVAC contractors in Oshkosh, 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 Oshkosh, 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 Oshkosh, 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 Oshkosh, 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!

Quick stats about HVAC companies database in Oshkosh, WI

Total contractors

1390 contractors

Total union contractors

155 union contractors

Total non union contractors

950 non union contractors

Total minority owned businesses

24 minority owned businesses

Total women owned businesses

14 women owned businesses

Average response time

3 days

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