Rated 5.0 Stars on Google!

Southwestern Oklahoma’s Most Trusted Heating & Cooling Company

Diamond Y Heating and Cooling provides HVAC installation, repair, and service across Comanche, Grady, Caddo, and Stephens counties.

Schedule Now Call (580) 284-2855

Your Local Furnace, Air Conditioner & Heat Pump Experts

Heating

Air Conditioning

Commercial HVAC

Insulation

Duct Sealing

Duct Repair

Specials

Reliable HVAC Services in Southwestern Oklahoma

When it comes to heating, ventilation, and air conditioning, experience and trust matter. At Diamond Y Heating and Cooling, we have built a reputation in Southwestern Oklahoma’s community for our commitment to quality, transparency, and customer satisfaction. From the initial consultation to the final service, we prioritize clear communication, honest pricing, and expert craftsmanship.

Comprehensive HVAC Solutions for Homes & Businesses

With a strong focus on both residential and commercial HVAC services, Diamond Y Heating and Cooling provides everything you need to keep your indoor environment comfortable. Our expert technicians specialize in HVAC maintenance, inspections, and installations to ensure your system runs smoothly when you need it most. We offer flexible scheduling, including same-day appointments and emergency services, to meet the demands of our customers.

Our Residential & Commercial Customers Love Us!

Leave Review More Reviews

Highly recommend Diamond Y as it will be the only company I go with from now on. Very professional and helpful. They got the job done fast and were able to explain what the problem was and what they did to fix it. They make sure to take care of their customers. Pricing was better than other companie ...continue reading

Nicole Gilbertson

Google Review

Very prompt, quick and thorough. It had turned extremely cold outside and we had an issue with our heater. They arrived and fixed the issue that day! Thank you guys very much! We will definitely be using again the next time we need anything heating and air!!!

Jacque Powell

Google Review

Dayton was fantastic. I had another company try and up sell me an entire new AC unit and it just didn't feel right. I had diamond y come and look at it and it was a small and inexpensive part and my unit was working like a charm. Would highly recommend. These guys are trustworthy and won't try and u ...continue reading

Mick Eddy

Google Review

Serving Southwestern Oklahoma with “Diamond Quality Service”

As a locally trusted HVAC company, we are proud to serve homeowners and businesses in Minco, Anadarko, Chickasha, Blanchard, Ninnekah, Apache, Fletcher, Elgin, Sterling, Rush Springs, Marlow, Duncan, Geronimo, Lawton, and Cache. Our team is passionate about creating comfortable, energy-efficient spaces for our customers, and we stand behind our work 100%.

Schedule Now Call (580) 284-2855

Our HVAC Services

At Diamond Y Heating and Cooling, we take pride in providing top-tier HVAC services for homes and businesses in Southwestern Oklahoma. Whether you need routine maintenance, expert repairs, or a brand-new system installation, our team is dedicated to delivering exceptional service with integrity and professionalism. Your comfort is our priority, and we work hard to ensure your heating and cooling systems operate efficiently year-round.

✔ Heating & Cooling Installation, Repair & Maintenance
✔ Indoor Air Quality Solutions
✔ New Construction HVAC Systems
✔ Ductless Mini-Split Systems
✔ Heat Pumps & High-Velocity Systems
✔ Custom Sheet Metal Fabrication
✔ WiFi Thermostats & Smart Climate Control
✔ Attic Insulation for Energy Efficiency

Schedule Now

Featured Offers

Rebates Available

Call (580) 284-2855 for details about manufacturer and utility rebates! Save thousands on new energy-efficient systems.

Claim This Offer

Free Service Call

With any paid repair or system replacement. Call (580) 284-2855 to schedule.

Claim This Offer

Schedule Your HVAC Service Today

If you need professional heating and cooling services in Southwestern Oklahoma, trust the experts at Diamond Y Heating and Cooling. Contact us today at (580) 284-2855 to schedule an appointment or request a quote. We look forward to providing you with the high-quality service you deserve!

Schedule Now Call (580) 284-2855

Why Choose Diamond Y Heating and Cooling?

Choosing an HVAC company is about more than just getting the job done—it’s about trusting professionals who care about your comfort and well-being. Here’s what sets us apart:

Unmatched Customer Service: We take the time to understand your needs and provide personalized solutions tailored to your home or business.
Expert Technicians: Our skilled team is knowledgeable, certified, and committed to delivering high-quality work with precision.
Transparent Pricing: We ensure that you understand every aspect of your service, so there are no surprises on your bill.
Reliable & Timely Service: Whether it’s an emergency repair or a scheduled maintenance check, we show up on time and ready to help.

Dedicated to Your Comfort & Energy Efficiency

At Diamond Y Heating and Cooling, we believe that an efficient HVAC system is more than just about temperature control—it’s about creating a healthier, more comfortable, and energy-efficient space for your home or business. That’s why we offer expert recommendations and advanced HVAC solutions that help you save on energy costs while improving indoor air quality. Whether you’re dealing with fluctuating temperatures, high utility bills, or poor air circulation, our team is ready to assess your needs and deliver lasting solutions.

Preventative Maintenance for Long-Term Performance

Routine HVAC maintenance is the key to keeping your system running efficiently and preventing costly breakdowns. Our professional maintenance services help extend the life of your equipment, reduce energy consumption, and ensure your system is ready to handle seasonal temperature changes in Southwestern Oklahoma. With our thorough inspections and tune-ups, you can have peace of mind knowing your HVAC system is in top condition year-round.

From The Blog

How Home Service Contracts Can Save Oklahoma Homeowners Money on HVAC Repairs and Maintenance

How Home Service Contracts Can Save Oklahoma Homeowners Money on HVAC Repairs and Maintenance Oklahoma weather puts extraordinary demands on heating and cooling systems. From scorching summers that push air conditioners to their limits to unpredictable winter cold snaps that strain furnaces, homeowners across the state face a constant cycle of wear and tear on … Continued

April 1, 2026 Read More

How Home Service Contracts Can Save Oklahoma Homeowners Money on HVAC Repairs and Maintenance

April 1, 2026 Read More

When to Repair vs. When to Replace Your HVAC System: A Oklahoma Homeowner's Guide to Making the Right Decision

When to Repair vs. When to Replace Your HVAC System: A Oklahoma Homeowner’s Guide to Making the Right Decision Oklahoma weather puts incredible demands on your heating and cooling equipment. From scorching summer temperatures that regularly exceed 100 degrees to winter cold snaps that plunge well below freezing, your HVAC system works harder here than … Continued

March 1, 2026 Read More

When to Repair vs. When to Replace Your HVAC System: A Oklahoma Homeowner's Guide to Making the Right Decision

March 1, 2026 Read More