(608) 438-5597 latitude43hvac@gmail.com
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Veteran Owned 🇺🇸

Heating & Cooling Professionals
For Living At Latitude.43.

Whether you need a maintenance check or an emergency repair on a heating or cooling unit, we are available to handle all of your all of your heating, cooling, and ventilation needs. We strive to exceed your expectations by ensuring that each of our clients receives individualized service.

Our Hours

Mon – Fri: 9am – 5pm

You Can Find Us

Madison Area – Lat.43

emergency service

Individualized HVAC Options.

We will work with you to find HVAC solutions that fit your heating and cooling needs. We will provide you with a full consultation to explain all of your available options so that you can choose the system that’s right for your home or business.

Competitive Pricing

Customizable solutions

EFFICIENT DESIGN PROCESS

24/7 Support

Spencer Sennhenn signature
Spencer Sennhenn

Owner/Operator

For Emergency HVAC Service:
+1 608-438-5597

We Provide THE FOLLOWING HVAC SERVICES FOR HOMES AND BUSINESSSES.

Service / Repair

Inevitably things will break down and need replacing in life. Your home heating and cooling system is no exception.

Service / Repair

Inevitably things will break down and need replacing in life. Your home heating and cooling system is no exception.
Learn More

Furnace & AC Replacement

Installing a new home heating or cooling system is a real investment in your home. There are a number of factors to consider when replacing a system.

Furnace & AC Replacement

Installing a new home heating or cooling system is a real investment in your home. There are a number of factors to consider when replacing a system.
Learn More

Indoor Air Quality

The air inside your home is essential for more than just comfort—it’s essential for life. It impacts your family’s health and budget.

Indoor Air Quality

The air inside your home is essential for more than just comfort—it’s essential for life. It impacts your family’s health and budget.

LEARN MORE

Radon Testing & Mitigation

The EPA suggests radon mitigation for radon levels at or above 4.0 pCi/L since it is known to cause lung cancer. Know your radon number.

Radon Testing & Mitigation

The EPA suggests radon mitigation for radon levels at or above 4.0 pCi/L since it is known to cause lung cancer. Know your radon number.
Learn More

Garage / Exterior Heating

Ductless indoor units are ideal for adding cooling and heating to uncomfortable spaces or new space additions like sunrooms, bonus rooms and garages.

Garage / Exterior Heating

Ductless indoor units are ideal for adding cooling and heating to uncomfortable spaces or new space additions like sunrooms, bonus rooms and garages.
Learn More

Dryer Vent Cleaning

Having your home dryer vent cleaned dramatically reduces the energy costs, equipment wear and tear, and time spent in doing laundry in your home.

Dryer Vent Cleaning

Having your home dryer vent cleaned dramatically reduces the energy costs, equipment wear and tear, and time spent in doing laundry in your home.
Learn More

Latitude.43 HVAC Club

AC Clean & Check
Furnace Clean & Check
Dryer Vent Cleaning
Locked Rates

Enjoy The Benefits Today

Locked REGULAR Rates (No After Hours, Weekend, or Holiday)
$350 allowed annually towards new furnace or A/C.
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Customer Satisfaction Guaranteed.

We serve both residential and commercial clients and offer a variety of money-saving solutions. We combine our use of the highest quality parts and equipment, and our dedication to delivering exceptional service to provide you with top quality service. Warranty included with all services.

“The only hot air you get from us comes out of a furnace”

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HVAC Systems Installed

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Projects Completed
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Feet of Ventilation Installed
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Happy Customers

Service / Repair

Furnace & AC Replacement

Indoor Air Quality

Radon Testing & Mitigation

Garage / Exterior Heating

Dryer Vent Cleaning

Step 01
Step 01

Choose a HVAC service

Let us know what you are having an issue with and send us that infomration on the form below or just call us at 1 (608) 438-5597

Step 02
Step 02

Schedule Expert Consultation

Schedule your Expert Consultation with a Latitude.43 HVAC Professional.

We do charge a $75 Consultation Fee. This fee is credited toward the cost of your project going forward. This fee generates good will between us and potential clients. 

Step 03
Step 03

CHOOSE FROM OPTIONS

We will provide you realistic options in for you to choose from. No-obligation or pressure to make a decision. We are always available to answer questions so that we can work together quickly and efficently.

Estimate/Quote Request Process.

It’s important that we fully understand your HVAC challenges and needs. Please schedule a consultation so that we can quickly address your problems with the most cost effective solutions.

Friendly Support

Please contact us at any point throughout the consultation or implementation process.

Experienced Team

We have built a team of dedicated HVAC professionals to deliver your HVAC solution.

Serving Residential and Commercial customers in Madison, WI & surrounding area

Schedule hvac visit

LOT'S OF PEOPLE LOVE LAT.43'S SERVICES

Cole Y.
Spencer and Josh were absolutely amazing to work with. They were upfront, honest, and answered every question I had. They truly went above and beyond what they had to do. Not only did they have to remove a 2 story tall ...
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Cole L.
9/14/2021
Spencer and Josh were absolutely amazing to work with. They were upfront, honest, and answered every question I had. They truly went above and beyond what they had to do. Not only did they have to remove a 2 story tall tree that was in the way, they went and bought landscaping rock to make sure the AC unit was level. They were so kind and accommodating, I would highly recommend Latitude 43
Cole Y.
Cole L.
9/14/2021
Nicole W.
Spencer was super thorough and was especially great about explaining what he was doing and why. I have had a few companies out to do scheduled maintenance on our furnace and AC but none have ever spent so much time ...
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Nicole W.
12/14/2021
Spencer was super thorough and was especially great about explaining what he was doing and why. I have had a few companies out to do scheduled maintenance on our furnace and AC but none have ever spent so much time making sure all my questions were answered. It was also the first time anyone had inspected the outside AC unit, let alone actually cleaning it! His prices are very reasonable and I feel confident he will stand behind his work and be there when we need him
Nicole W.
Nicole W.
12/14/2021
Seth T.
Great guys and very accommodating! Showed and helped me understand the problem and what they needed to do to fix it. Extremely friendly and just amazing service all around. Would recommend them to anyone and everyone.
Seth T.
1/14/2022
Great guys and very accommodating! Showed and helped me understand the problem and what they needed to do to fix it. Extremely friendly and just amazing service all around. Would recommend them to anyone and everyone.
Seth T.
Seth T.
1/14/2022

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