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 7/16/2026 Loran Zwiefelhofer had this to say:
Great experience! Nate came out immediately when our AC stopped working and was able to find a fix right away and repair it at an extremely reasonable price! 10/10 would recommend!

On 7/15/2026 Loran had this to say:
Nate was amazing! He came out so quickly when our AC stopped working on one of the hottest days of the year. He was able to find the issue and fix it at a very reasonable price! 10/10 would recommend Testimonial written by Loran on this site.

On 6/15/2026 Kimberly Hall had this to say:
Very professional and very informative about the whole process. Easy to communicate with and answer all questions. Installation and removal was quick and painless. Great company to do business with.

On 4/5/2026 Austin Mason Meisenheimer had this to say:
Incredible service

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

Our Hours

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

All Season Comfort Heating & Air Conditioning LLC provides dependable solutions for your home, including:
• Heating & cooling repairs
• System installations & replacements
• Preventative maintenance
• Seasonal tune‑ups

No matter the season, we’re here to keep your home comfortable.

Don’t wait for a breakdown during the hottest days of the year. Whether you need an AC tune‑up, repair, or replacement, All Season Comfort Heating & Air Conditioning LLC has you covered. Beat the heat and stay comfortable all summer.
❄ Reliable cooling
❄ Fast, professional service
❄ Solutions for every home

🔥❄️ Year‑Round Comfort Starts Here! ❄️🔥
At All Season Comfort Heating & Air Conditioning LLC, we understand how important it is to keep your home comfortable—no matter the season.
🌡️ Take advantage of our $189 Furnace & A/C Tune‑Up and give your systems the care they need to perform at their best!
✅ Thorough cleaning & inspection
✅ Performance & safety checks
✅ Improved efficiency & reliability
Our expert team ensures your heating and cooling systems are ready for whatever the weather brings—so you can relax with peace of mind. 💨🏡
📅 Don’t wait—schedule your tune‑up today and enjoy dependable comfort all year long!
👉 Learn more: https://allseasoncomfortheatingandac.com/
#HVACService #HomeComfort #TuneUpSpecial #AllSeasonComfort #HeatingAndCooling #StayComfortable

Spring is the perfect time to make sure your HVAC system is running efficiently before summer heat arrives. A seasonal checkup can help:
✔ Improve efficiency
✔ Extend system life
✔ Catch small issues early

Schedule your spring service with All Season Comfort Heating & Air Conditioning LLC and enjoy worry‑free comfort all season long.

Heating or cooling upgrades don’t have to wait. All Season Comfort Heating & Air Conditioning LLC offers flexible financing options to help make your home comfortable without the upfront stress. Because your comfort should never be put on hold. 🌬️🔥
✅ Affordable monthly payments
✅ Fast approval
✅ Financing links available right on our website

Info

Service Finance Company
Hearth Financing
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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