A/C & Heat Repair You Can Count On in Carbondale, CO

You rely on your vehicle in every season, and that includes staying warm in winter and cool when summer hits hard. At JW Diesel & Automotive in Carbondale, CO, our auto A/C and heating services are built on deep expertise, dealer-level tools, and a no-nonsense approach to repairs. We don’t just fix it. We test, verify, and make sure it holds up mile after mile, no matter where the road takes you.

Visibility, Ventilation, and Peace of Mind:
Year-Round Essentials

Colorado weather doesn’t play nice, and your HVAC system is the barrier between you and every cold front or heat wave. Clear glass, fresh airflow, and consistent cabin temps mean fewer distractions and more control. That’s why we treat every A/C and heat service like a safety system, not an afterthought.

Don’t Ignore These Signs of A/C or Heater Trouble

A failing A/C or heater often starts small, until one day it quits altogether. If you’ve noticed any of the following, it’s time to schedule an inspection:

A/C blowing warm or inconsistent air
Weak airflow or vents not responding
Unusual odors when the system runs
Loud noises from the fan or vents
Windows fogging up excessively
Leaks or visible damage under the hood
Heater not producing enough warmth in winter

If it’s not cooling like it used to, or not heating at all, trust JW Diesel to restore it quickly and correctly.

Our Complete A/C & Heat Services

We provide full diagnostics, repairs, and system service for both gas and diesel trucks. Whether your issue is electrical, mechanical, or refrigerant-related, we have the tools and the training to get it fixed.

A/C & Heater Diagnostics

We use OEM-level scan tools to evaluate system sensors, blower motors, compressors, and control modules for accurate and honest diagnosis.

Refrigerant Service & Recharge

We service both R134A and R1234yf refrigerants. Our technicians recover, evacuate, and recharge your system to factory specs to keep your cabin cool and compliant.

Compressor & Condenser Repair

A bad compressor or blocked condenser can stop your A/C cold. We inspect, test, and replace faulty parts with high-quality components for lasting results.

Blower Motor & Fan Repair

If airflow feels weak, we check blower motors, cabin filters, and fans to ensure air moves freely and efficiently through your vents.

Heater Core & Blend Door Repair

Poor heating performance often points to clogged heater cores or stuck blend doors. We inspect and repair these components to restore reliable cabin warmth.

Leak Detection & Sealing

Using UV dye and electronic leak detectors, we locate leaks in hoses, seals, or evaporators, and seal or replace them to prevent refrigerant loss.

HVAC Control System Diagnostics

From faulty control heads to broken sensors, we troubleshoot modern electronic climate control systems and restore full functionality to your dashboard controls.

We Service New & Legacy Refrigerant Systems

From older systems to the latest models, JW Diesel & Automotive is fully equipped for both R134A and R1234yf refrigerants. Our EPA 609-certified technicians use advanced recovery, recharge, and recycling tools to meet strict EPA and OEM standards.

Why R1234yf Matters

Most vehicles 2021 and newer are built for R1234yf, a more efficient, eco-friendly refrigerant with:

Reduced environmental impact
Better system efficiency and faster cooling
Compatibility with advanced HVAC controls
Industry-standard compliance across new vehicles

We’re ahead of the curve, ready to handle whatever your vehicle requires.

Local Roots. Dealer-Level Tools. Real Results.

Colorado’s seasons can be demanding, and so can your A/C and heat system. At JW Diesel & Automotive, we deliver expert climate control service with honesty and attention to detail.

Trained & Certified Where It Matters

ASE- and Ford-certified, plus EPA 609 qualified for advanced A/C work, your vehicle is in expert hands.

Tools to Match the Trucks We Serve

Our dealer-level diagnostics and parts are chosen for diesel reliability and long-term comfort.

We’re Built for Your Schedule

No appointment needed, just stop in and let us handle the rest with fast, transparent service.

Locally Invested, Always Honest

We’re not just a repair shop, we’re your neighbors, proud to support Carbondale’s community and customers.

Backed by Warranty, Driven by Quality

We stand behind our work with a 12-month/12,000-mile warranty. Because your comfort and confidence matter most.

Backed by Warranty

We stand behind our work with a 12-month / 12,000-mile warranty on parts and labor.

JW Diesel & Automotive

Diesel strong. Fleet ready. Driven to be the best.

Let’s Bring the Comfort Back to Your Cab

Cabin climate matters, whether you’re navigating an early morning freeze or a high-elevation heatwave. At JW Diesel & Automotive, we provide the kind of A/C and heat repair that’s built to last, with certified expertise and genuine care.

Visit us at 794 Industry Place, Carbondale, CO 81623 or contact our team at (970) 510-5157 or via text at (970) 510-6344. From Glenwood Springs to Aspen and beyond, we’re here to keep Colorado driving comfortably.

Driven to be the best.