Furnace & Heating Repair in Lubbock, TX and Surrounding Areas

Fast, Reliable Heating Solutions to Keep Your Family Warm and Safe. 24/7 Emergency Repair Available

A heating breakdown during Lubbock's cold snaps can create an uncomfortable and potentially unsafe situation for your family. At Duncan Heating & Air Conditioning, Inc. & Plumbing, we provide 24/7 emergency heating repair services to quickly restore your comfort and peace of mind. Our NATE-certified technicians deliver expert furnace and heating system repairs backed by over 25 years of local experience.

Our Comprehensive Heating Repair Services

Emergency Heating Repair

When your heating system fails, we provide prompt, professional repairs to restore warmth to your home.

  • 24/7 Emergency Dispatch: Fast response times when you need us most
  • Accurate Diagnostics: Advanced equipment to quickly identify heating problems
  • Common Heating Issues We Repair:
  • Furnace Won't Start: Tripped breakers, faulty ignitors, or dead thermostat batteries
  • Inadequate Heating: Dirty filters, clogged coil fins, or low refrigerant levels
  • Short Cycling: Faulty controls or sensor problems
  • Unusual Noises: Loose components or motor issues
  • System Shutdowns: Emergency sensor triggers protecting your unit

Heating System Diagnostics

Most furnaces, heat pumps and boilers have safety systems that shut down when problems are detected. Our experts quickly diagnose and resolve these issues.

Our Diagnostic Process Includes:

  • Comprehensive system evaluation using advanced tools
  • Safety component testing and verification
  • Performance analysis and efficiency assessment
  • Honest recommendations for repair or replacement

Heating Repair vs. Replacement

We provide honest advice to help you make the best decision for your home and budget.

When Repair is the Best Option:

  • Minor component failures
  • Systems under 10 years old
  • Cost-effective solutions available
  • Regular maintenance history

Consider Replacement When:

  • Repairs approach half the cost of a new system
  • Frequent breakdowns occurring
  • System is over 15 years old
  • Rising energy bills indicating inefficiency

Common Heating Problems We Solve

Furnace Issues:

  • Ignition system failures
  • Blower motor problems
  • Heat exchanger concerns
  • Thermostat malfunctions
  • Airflow restrictions


Heat Pump Problems:

  • Refrigerant leaks
  • Reversing valve failures
  • Defrost cycle issues
  • Compressor problems
  • Electrical component failures



Boiler Repairs:

  • Circulation pump failures
  • Pressure valve issues
  • Leaking pipes or valves
  • Pilot light problems
  • Zone control malfunctions

Why Choose Duncan for Heating Repair?

  • NATE-Certified Technicians: Highest industry certification for expert service
  • Factory-Authorized Expertise: Direct access to Carrier and Mitsubishi parts and training
  • 25+ Years of Local Experience: Understanding West Texas heating needs
  • 24/7 Emergency Service: Always available during cold weather emergencies
  • Honest Recommendations: We never suggest unnecessary repairs or replacements
  • Satisfaction Guaranteed: We stand behind our work with a comprehensive guarantee
  • OEM Parts: Genuine manufacturer parts for reliable, long-lasting repairs

Prevent Future Heating Problems

Avoid unexpected breakdowns with our preventive maintenance services:

  • Annual Tune-Ups: Keep your system running efficiently
  • Safety Inspections: Ensure your family's safety from carbon monoxide risks
  • Filter Replacements: Maintain proper airflow and air quality
  • System Optimization: Maximize efficiency and lifespan
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Recent Posts

When to Replace an Old Furnace

By Alyssa Costin • February 28, 2025
As a homeowner in Lubbock, TX, staying warm during the colder months is a top priority, and that often depends on the efficiency and reliability of your home’s furnace. However, furnaces, like any other home appliance, have a finite lifespan. Recognizing when it’s time to replace an old furnace rather than continuing to invest in […] The post When to Replace an Old Furnace appeared first on Duncan Heating & Air Conditioning, Inc. & Plumbing.

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By Alyssa Costin • January 30, 2025
When it comes to selecting a new furnace for your home, understanding the annual fuel utilization efficiency (AFUE) rating is crucial. This rating, represented as a percentage, measures how effectively a furnace can convert fuel into heat over a typical year. Choosing a furnace with a good AFUE rating can mean the difference between enduring […] The post What Is a Good AFUE Rating for a Furnace? appeared first on Duncan Heating & Air Conditioning, Inc. & Plumbing.

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