Your home in Lubbock is your sanctuary, and its comfort is our business. Duncan Heating & Air Conditioning & Plumbing is the trusted name for homeowners seeking reliable heating, cooling, and indoor air quality solutions. We combine NATE-certified expertise with a steadfast commitment to honest service, quality workmanship, and 100% customer satisfaction. Whether you're facing a sudden breakdown or planning a system upgrade, we are here to ensure your family stays safe and comfortable through every season.

Our Comprehensive Residential HVAC Services

Air Conditioning & Heating Repair

A breakdown is always inconvenient, and often happens at the worst possible time. We offer 24/7 emergency repair services to quickly restore your comfort and peace of mind.

• Fast, Accurate Diagnostics: Our technicians use advanced tools to efficiently pinpoint issues, from refrigerant leaks and dirty coils to faulty electrical connections and tripped breakers.
• Common Repair Scenarios:
• AC Won't Start: Caused by tripped breakers, faulty contactors, or dead thermostat batteries.
• Reduced Cooling/Heating: Often due to clogged filters, low refrigerant, or congested coil fins.
• Unusual Noises or Cycling: Indicating loose components, sensor issues, or a system that is the wrong size.
• Honest Recommendations: We will always tell you if a repair is your best option. If your system is aging and inefficient, we may recommend a replacement, but we will never suggest one for a problem that can be fixed affordably.
  

System Installation & Replacement

When repairs are no longer cost-effective, or you're ready for superior comfort and efficiency, trust our expert installation team.

Is It Time to Replace Your System?

Consider replacement if you notice:

• Rising Energy Bills: An inefficient system works harder, costing you more.
• Frequent Repairs: Costs are approaching half the price of a new unit.
• Inconsistent Comfort: Hot and cold spots throughout your home.
• Excessive Humidity: Your AC is no longer effectively removing moisture.
• System Age: Most air conditioners and heat pumps last 10-15 years; furnaces 15-20 years.

Our Professional Installation Process:

1. In-Home Assessment & Load Calculation: We properly size your system using ACCA-approved methods for optimal efficiency and comfort.
2. Product Selection: As a Carrier Factory Authorized Dealer and Mitsubishi Diamond Contractor, we offer top-tier equipment, including high-efficiency air conditioners, heat pumps, furnaces, and innovative hybrid dual-fuel systems.
3. Expert Installation: Our NATE-certified technicians follow manufacturer and industry best practices to ensure peak performance and safety.
4. Warranty Registration: We handle the paperwork to secure your 10-year manufacturer warranty on Carrier equipment and 12-year warranty on Mitsubishi.
5. Clean-Up & System Demo: We leave your home clean and walk you through operating your new system.
   

HVAC Maintenance Agreements

Prevent the majority of HVAC breakdowns with our comprehensive maintenance plans. A tuned-up system saves you money, improves comfort, and extends equipment life.

Benefits of Our Maintenance Plan:

• Lower Energy Bills: A clean system operates more efficiently
• Fewer Repairs: We catch small issues before they become big, costly problems
• Extended Equipment Lifespan: Proper maintenance can add years to your system's life
• Priority Scheduling & Discounts: Plan members get front-of-the-line service and discounts on repairs

What’s Included in Your Service Visits:

• Spring AC Tune-Up: Check refrigerant charge, clean condenser coils, calibrate thermostat, and inspect electrical components
• Fall Heating Tune-Up: Inspect heat exchangers for safety, check gas connections, test system controls, and ensure proper ventilation
  

Indoor Air Quality Solutions

The air inside your home can be more polluted than the air outside. Protect your family's health with our IAQ solutions.

Common IAQ Threats We Solve:

• Airborne Contaminants: Dust, pollen, pet dander, and mold spores
• Improper Humidity Levels: Too much humidity promotes mold; too little causes dry skin and respiratory irritation

Our IAQ Products & Services:

• Air Purifiers & Filtration Systems: Remove microscopic pollutants and allergens
• Humidifiers & Dehumidifiers: Achieve the ideal humidity level for health and comfort
• UV Lights: Kill mold, bacteria, and viruses circulating through your ductwork
• Ventilation Systems: Replace stale indoor air with fresh outdoor air
  

Why Choose Duncan?

• NATE-Certified Technicians: The highest certification in the industry, ensuring expert-level service
• Honest, Flat-Rate Pricing: No surprise charges. You'll know the cost before we begin any work
• Factory-Authorized Expertise: Direct access to Carrier and Mitsubishi parts, training, and support
• Satisfaction Guaranteed: We stand behind our work with a 100% satisfaction guarantee
• Committed to Your Safety & Privacy: Our technicians are thoroughly vetted and respect your home

Need Financing?

Recent Posts