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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
Dodge County, WI | Fond du Lac County, WI | Ashippun, WI | Beaver Dam, WI | Brownsville, WI | Burnett, WI | Clyman, WI | Fox Lake, WI | Horicon, WI | Hustisford, WI | Iron Ridge, WI | Juneau, WI | Kekoskee, WI | Lebanon, WI | Lomira, WI | Lowell, WI | Mayville, WI | Neosho, WI | Portland, WI | Reeseville, WI | Rubicon, WI | Washington County, WI | Woodland, WI
Our Professional Associations
- BBB
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:
Our Products include:
- Oil Furnaces
- Gas Furnaces
- Air Conditioners
- Thermostats
- Boilers
- Air Handlers
- Mini Splits
Testimonials
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.
On 7/30/2025
Aineen Archimede
had this to say:
Nate and his crew went above and beyond on a complex HVAC and ductwork installation in our older home. From the moment they came out to provide a quote, we knew All Season Comfort was the right choice—honest, straightforward, and genuinely invested in doing the job right.
We spoke with several larger companies in the area, but none brought the same energy, professionalism, and personal touch that Nate and his team did. Despite the demanding nature of the project, they remained positive, personable, and highly communicative every step of the way.
Their expert knowledge, attention to detail, and clear passion for the craft were evident throughout the entire process. They tackled a tough job with skill and care, and we couldn’t be more grateful.
Whatever heating or cooling project you have—big or small—this is the team you want on your side. Hands down.
On 7/30/2025
Aineen A.
had this to say:
Nate and his team delivered exceptional results on a challenging HVAC and ductwork installation in our older home. From start to finish, their professionalism, positivity, and clear communication stood out.
Throughout the project, it was clear we were working with true experts—every detail was handled with care, precision, and a genuine passion for the craft. Even with the complexity of the job, they approached it with confidence and skill, and the final outcome speaks for itself.
If you're looking for a trustworthy, hardworking crew for any heating or cooling project—look no further. This is the team you want on your side. No question.
Testimonial written by Aineen A. on this site.
Contact Us
All Season Comfort Heating & Air Conditioning LLC
Theresa, WI 53091
Phone: (920) 349-3317
Email: Allseasoncomfortllc
Where To Find Us
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Payment Types Accepted
Personal Checks, Cash, 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
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
Elevate your home comfort with our industry-leading HVAC services now backed by a 12-year labor and manufacturer warranty. Say goodbye to worries and hello to energy efficiency and performance. Get in touch to get started today!
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FAQ
Oil Furnaces $159 + parts
Gas Boiler $149 + parts
Oil Boiler $169 + parts
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