All Season Comfort Heating & Air Conditioning LLC

"Quality, Professionalism, & Responsiveness"

About Us

All Season Comfort Heating & Air Conditioning LLC is a trusted Residential HVAC business located in Theresa, WI and proudly serving Dodge County since 1986. We are a Father and Son duo and specialize in providing top-notch maintenance, installation, and service for all your heating and cooling needs. From central air conditioners and furnaces to boilers and mini split units, our experienced technicians are dedicated to ensuring your home's comfort all year round. We have over 40 years of experience working with oil furnaces. Customer satisfaction is our priority, and we strive to provide reliable and efficient solutions to keep your indoor environment at its optimal temperature, regardless of the season. Trust All Season Comfort Heating & Air Conditioning LLC for all your residential HVAC needs in Dodge County WI and surrounding areas.

Areas Served

Our Professional Associations

What We Offer

Our Specialties include:

At All Season Comfort Heating & Air Conditioning LLC, we stand behind the quality of our work with a 12-Year Labor and Manufacturer Warranty—one of the strongest guarantees in the industry. This extended coverage reflects our commitment to long-term performance, reliability, and customer peace of mind. Whether you're installing a new system or upgrading your current one, you can trust that your investment is protected by both expert craftsmanship and dependable manufacturer support. With All Season Comfort, you're not just getting comfort today—you're securing it for years to come.

Our Services include:

Core HVAC Services: We offer expert heating, air conditioning, and HVAC maintenance services to keep your home comfortable in every season. From seasonal tune-ups to full system diagnostics and repairs, our team ensures your equipment runs efficiently and reliably.
System Solutions: Whether you're upgrading or replacing your HVAC system, we provide professional sales and installation services tailored to your needs. Every system we install is backed by a 12-year labor and manufacturer warranty, giving you peace of mind and long-term value.
Project Types: We specialize in residential HVAC services, including systems for new construction and remodels. Our team designs and installs efficient ductwork and climate control systems that fit your space and lifestyle.
Support & Availability: Our 24-hour emergency services ensure you're never left in the cold—or the heat. Whether it’s a sudden breakdown or urgent repair, our technicians are available around the clock to restore your comfort quickly and professionally.

Our Brands include:

Honeywell
Crown
Concord
Nest
Goodman
April Air

Our Products include:

Oil Furnaces
Gas Furnaces
Air Conditioners
Thermostats
Boilers
Air Handlers
Mini Splits

Testimonials

On 1/12/2026 Dawn S. had this to say:
1000% recommend. Very professional, knowledgeable and very honest. Will continue to use this company!

On 12/8/2025 Kaitlyn Mueller had this to say:
Nate came out to look at my furnace after I requested a second opinion on what might be wrong with it. I had been back and forth with home warranty and was out of heat for 2 weeks. Called him on Friday and he came right away on Monday! He took a look at everything and had my furnace fixed in an hour. He was very knowledgeable and extremely helpful. I will definitely continue future service with him! Highly recommend.

On 9/18/2025 Jason Morrison had this to say:
Great guy to do business with didn't try to over sell me anything. Testimonial written by Jason Morrison on this site.

On 9/8/2025 Cassie O'Connor had this to say:
Awesome!!! Highly recommend. Thank you for your service.

On 8/19/2025 Melissa Behnke had this to say:
They were very professional. Had our new central air unit up and running in about 3 hours. They were very nice and easy to work with. They were also priced way better than other companies we called. Would definitely recommend to anyone.

Contact Us

All Season Comfort Heating & Air Conditioning LLC
Theresa, WI 53091
Phone: (920) 349-3317
Email: Allseasoncomfortllc@gmail.com

Where To Find Us

Payment Types Accepted

Personal Checks, Credit Cards

Our Hours

Holiday Hours May Vary. Please Call For Details.

Monday: 8:00 AM - 5:00 PM
Tuesday: 8:00 AM - 5:00 PM
Wednesday: 8:00 AM - 5:00 PM
Thursday: 8:00 AM - 5:00 PM
Friday: 8:00 AM - 5:00 PM
Saturday: Open 24 Hours
Sunday: Open 24 Hours

News

Thinking about upgrading your HVAC system? 🏡 All Season Comfort Heating & Air Conditioning LLC offers comprehensive solutions tailored to your needs. From energy-efficient units to smart thermostats, we provide the latest technology to enhance your comfort and reduce utility bills. Get a consultation today! 💡🌟 #EnergyEfficient #HomeComfort

❄️ Don't get left out in the cold—or heat! All Season Comfort Heating & Air Conditioning LLC is your trusted partner for reliable HVAC solutions year-round. Whether it's installation, maintenance, or emergency repairs, our skilled technicians have you covered. Keep your home cozy no matter the season! 🌡️ #AllSeasonComfort #HVACExperts

At All Season Comfort Heating & Air Conditioning LLC, your feedback matters to us! If you've received excellent service, please take a moment to leave a review. Your reviews help us improve and continue to provide top-notch service. Click here to share your experience: (https://allseasoncomfortheatingandac.com/reviews) 👍💬 #CustomerFeedback #ReviewUs

🌞 Summer is here, and keeping cool is a must! Beat the heat with All Season Comfort Heating & Air Conditioning LLC. Our expert team is ready to tackle any A/C repairs, ensuring your units are running at peak performance. Don't wait for a breakdown; contact us today and stay comfortable all season long! ☀️❄️ #SummerComfort #ACRepairs #StayCool

Exciting news! We are now offering financing options! The application process is simple and smooth, to make your lives a little bit easier! Visit the Financing Application tab above, or click this link to fill out an application!

https://apply.svcfin.com/embedded

Info

Financing Application
Better Business Bureau

FAQ

What services do you offer?

We provide installation, repair, and maintenance services for:

Oil furnaces

Gas furnaces

Air conditioners

Boilers

Air handlers

Thermostats

How long have you been in business?

We were established in 1986 and have built decades of experience serving the local community.

What should I do when my heating or cooling system fails?

First, check your thermostat settings, circuit breakers, and air filters. If everything appears normal and the system still won’t operate, give us a call and we will dispatch a technician as soon as possible.

Do you offer preventive maintenance or service agreements?

Yes — regular maintenance helps ensure optimal performance, longevity, and energy efficiency. Ask us about our routine service plans or seasonal checkups.

How quickly can you respond to service calls?

We aim to respond promptly and accommodate emergency repairs whenever possible. Availability may depend on current workload and distance, but we always strive to address urgent issues swiftly.

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