If you’re stuck with cold air in January or no cooling in July, your HVAC system is overdue. Heavy-duty HVAC system repair restores full heating, cooling, and defrost power so you can drive in comfort year-round.
Truck HVAC Repair in Mount Horeb, WI
Your truck’s HVAC system does more than heat and cool—it keeps your windows from fogging, your electronics from overheating, and your long hauls comfortable. It also helps to keep you focused and reduce fatigue, which is the cause of 91,000 crashes in the U.S. alone each year!
But compressors wear out, blower motors fail, and refrigerant leaks are all too common. That's why at River Valley Diesel Services & Construction, we service every component in your truck’s HVAC system—diagnosing the root issue and fixing it fast.
Here’s what we can repair or replace:
- HVAC system diagnostics and leak testing
- AC compressor and blower motor repair
- Heater core replacement and vent inspections
- AC line replacement and refrigerant recharge
- Defrost system repairs and vent actuator fixes
- Electrical issues and HVAC system wiring repair
- Complete semi-truck HVAC repair and system rebuilds
Whether you're roasting in summer or freezing in winter, we’ll restore full temperature control so you can focus on the road, not your climate controls.
Experience the River Valley Difference!
Service Multiple Trucks at Once: Six trucks at a time means faster turnarounds—even during seasonal HVAC rushes.
Customer Service Focus: We listen, communicate clearly, and work with your schedule to get your cab climate back to normal.
Transparent Pricing: You’ll always get an upfront estimate. No guesswork. No surprises.
Easily Accessible: Located off I-94 and I-151 in Mount Horeb, WI—easy to find and easy to get serviced quickly.
FAQs
How can I get heavy-duty HVAC system repairs?
Call 608-574-5785 to schedule your heavy-duty HVAC system repair. We’ll diagnose the issue, fix it right, and get your cab comfortable again. Don't settle for second best; book your service now!
How do I know if my truck’s HVAC needs repair?
Signs your heavy-duty diesel truck’s HVAC needs repair include weak airflow, inconsistent temperatures, unusual noises, foul odors, or failure to heat or cool properly. Foggy windows and refrigerant leaks are also indicators. Prompt inspection ensures driver comfort and prevents further system damage.
What areas do you serve for heavy-duty HVAC system repair?
We are based at 3200 Hwy 78, Mount Horeb, WI, near I-94 and I-151.
As well as Mount Horeb, WI, we also proudly service the following areas: Madison, WI; Janesville, WI; Wisconsin Dells, WI; Beaver Dam, WI; Fitchburg, WI; Middleton, WI; Sun Prairie, WI; Verona, WI; Stoughton, WI; Baraboo, WI; Portage, WI; Lake Delton, WI; Reedsburg, WI; Dodgeville, WI; Monroe, WI; Columbus, WI; Fort Atkinson, WI; Waunakee, WI; and Evansville, WI.
What causes HVAC failure in trucks?
HVAC failure in heavy-duty diesel trucks is often caused by refrigerant leaks, faulty compressors, blower motor issues, clogged filters, or electrical problems. Worn components or sensor failures can also disrupt heating or cooling. Regular maintenance helps prevent breakdowns and ensures driver comfort and system reliability.
Contact Us About Semi Truck HVAC Repair Now: Call 608-574-5785!
If your cab is too hot, too cold, or won’t clear your windshield, it’s time for service. Call 608-574-5785 today to schedule your semi-truck HVAC repair and get your climate system back on track.
What They're Saying About Us
See why our customers consider River Valley Diesel Services & Construction their go-to repair shop in Mount Horeb, WI and the surrounding areas!
I was in a jam and they came out and got me fixed up quick I would definitely recommend them if you’re in a jam
Contact Us
Need roadside assistance, have questions, or want to schedule your truck or trailer in for a service or repair? Get in touch, we're open Monday through Friday from 7:00am to 5:00pm.