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Duncan Heating & Air Conditioning, Inc. & Plumbing

HVAC Companies in Lubbock, Texas

Ranked #9 in Lubbock | Grade C+

Duncan Heating & Air Conditioning, Inc. & Plumbing

Heating, air conditioning, and plumbing service for Lubbock, Texas homes and small businesses. Calls are handled around the clock with technicians dispatched for urgent issues when available.

Why Homeowners Choose This Business

Local service with 24/7 availability for scheduling, clear communication on findings and options, and experience with both HVAC and plumbing so related issues can be addressed in one visit when possible Local experience that helps homeowners across Lubbock, Texas compare a more region-aware provider.


Service Area

Lubbock, Texas and surrounding Lubbock County communities. Call to confirm coverage.

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  • Published local profile

How This Business Compares

A quick local comparison based on review strength, business detail, and local service fit.

  • Has an established presence within this local market.

Trust Signals

Phones answered 24/7 with dispatch based on urgency and availability.

Services Covered

Plumbing Services Renovation Services Supplier Hvac Repair Maintenance AC Repair Installations Heating Repair Repairs Furnace Replacement Air Conditioner Installation Plumbing Repair Gas Leak Repair Water heater service HVAC Maintenance Refrigerant line repair Thermostat Replacement Ductwork Repair

Heating and air conditioning repair, maintenance, and system replacement; gas leak locating and repair; A/C refrigerant line repair; plumbing service; water heater service; and new equipment installation.

Reviews

Customer Reviews

Shannon Pettit

Called on Sunday morning at 8:00 am during an extreme winter event. Got a return phone call from Barbara within 5 minutes. She dispatched Steven and he was here within an hour. Steven did a great job explaining the issue and got us fixed up…
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Called on Sunday morning at 8:00 am during an extreme winter event. Got a return phone call from Barbara within 5 minutes. She dispatched Steven and he was here within an hour. Steven did a great job explaining the issue and got us fixed up as quickly as possible. We have done business with Duncan for almost 10 years and appreciate their professionalism. Steven and Barbara just reinforced our opinion. Thank you Duncan for your great service.

Lacausha Johnson

They have been out to my house 2 times in one week and I’m still having the same problem… 2 hours the first day and 5 hours the second day.. would not recommended I feel like they are just milking my time and money..

Brian Sutton

ATMOS told me I had a gas leak, so they locked out my gas; no hot water. Duncan Heating & A/C came out almost immediately. It took about three days to find and repair the leak. Casey did a fantastic job! I really enjoyed interacting with hi…
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ATMOS told me I had a gas leak, so they locked out my gas; no hot water. Duncan Heating & A/C came out almost immediately. It took about three days to find and repair the leak. Casey did a fantastic job! I really enjoyed interacting with him throughout the process. He made sure that I understood what he was doing, and he repaired everything much better than it was previously. I've already recommended Duncan Heating & A/C to my colleagues at work.

Beckie Brawley

Our air conditioner went out and they were so prompt at getting a technician here within 2 hours of our calling them. We had to get a new unit and they kept us informed about shipping and when it got here they installed it the next morning.…
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Our air conditioner went out and they were so prompt at getting a technician here within 2 hours of our calling them. We had to get a new unit and they kept us informed about shipping and when it got here they installed it the next morning. We have used Duncan for 30 years and they are a great group of folks.

Taylor Dunbar

I accidentally ran over the Freon pressurized pipe for the ac with my lawn mower. On a Sunday of course. I was so upset, calling everywhere I could to get quotes. Every place I called, and it was a ton of places available 24/7, quoted me at…
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I accidentally ran over the Freon pressurized pipe for the ac with my lawn mower. On a Sunday of course. I was so upset, calling everywhere I could to get quotes. Every place I called, and it was a ton of places available 24/7, quoted me at at least $1600 and said it would take hours to replace and they couldn’t get to it same day. Called Duncan, they were here within the hour, fixed it within an hour and charged me $561. They are amazing! Will forever use this company!!!! So kind, helpful, fast, trustworthy, and they don’t take advantage of you and price gouge. Thank you, Duncan!!!!

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Special Offers

Emergency Service

Emergency service may be available for urgent issues.

Frequently Asked Questions

Do you offer service outside regular business hours?

Yes, the office and dispatch respond to calls at all hours. Availability for technician dispatch depends on urgency and current workload, but customers regularly report same-day or next-day help.

Can you handle gas leak issues?

Yes, technicians can locate and repair gas leaks and coordinate with utility lockouts. Time to complete repairs varies based on the location and extent of the leak and any code requirements.

Do you repair refrigerant line damage on air conditioners?

Yes, the team can repair damaged refrigerant lines and recharge systems as needed. Technicians will assess the damage on site and review repair options and costs before work begins.

What brands of HVAC systems do you service?

Technicians service most major residential and light commercial brands. During the visit, they will advise if any brand-specific parts or lead times may affect the repair.

How do I get an estimate for a new HVAC system?

Call the office to schedule an on-site assessment. A technician will evaluate system size needs, discuss efficiency options, and provide a written estimate with timelines.