HVAC Services in Noble and Norman, OK

Quality Heating and Cooling Services You Can Trust
When your comfort depends on a reliable HVAC system, Harwell Heat & Air is the team to call. We provide expert heating and cooling services for homeowners across Noble, Norman, and surrounding Oklahoma communities. Whether you need a quick A/C repair, a full heating installation, or seasonal maintenance, we deliver honest, professional solutions backed by more than a decade of experience.
With licensed technicians, responsive service, and a commitment to doing things the right way, we’ve built our reputation one home at a time.
Our Service Categories
We offer a full range of residential HVAC services to keep your system operating efficiently all year long. Our core services include:
Air conditioning and heating repair
New HVAC system installations
Preventative maintenance and seasonal tune-ups
Indoor air quality improvements
Ductwork inspections and modifications
Mini-split system installations
We work with all major HVAC brands and equipment types, including furnaces, central air units, heat pumps, and ductless mini-splits.

Air Conditioning and Heating Repairs
When your HVAC system breaks down, fast, accurate repair is essential. At Harwell Heat & Air, we respond quickly to diagnose and resolve common and complex HVAC issues. Our team is equipped to handle everything from minor part replacements to major system failures.
Common repair services include:
Air conditioning not blowing cold air
Furnace not producing heat
Thermostat issues
Pilot light or ignition problems
Refrigerant leaks and compressor failures
Loud or unusual system noises
Uneven airflow or temperature imbalances
We always begin with a thorough inspection and give you a clear explanation of what’s wrong and how we’ll fix it. No guesswork. No unnecessary upsells.
Our goal is to restore your comfort quickly and extend the life of your system with high-quality, reliable repairs.
HVAC Installations and Replacements
Whether you're building a new home, remodeling, or replacing an aging system, a properly installed HVAC system is crucial to long-term comfort and efficiency. Harwell Heat & Air provides professional installation services for central air conditioners, furnaces, heat pumps, and mini-splits.
We’ll help you choose the right equipment based on your home size, energy efficiency goals, and budget. We install systems that perform reliably and meet modern energy standards, ensuring years of performance with fewer repairs.
Our installation services include:
Central A/C and furnace installation
Ductless mini-split installation
Heat pump installation
Thermostat upgrades and smart controls
Removal and disposal of old equipment
We install systems from trusted HVAC brands and ensure every job is done to code, with clean workmanship and complete testing before we leave.


HVAC Maintenance Plans
Preventative maintenance is the key to long-lasting HVAC performance. With regular inspections and seasonal tune-ups, your system can operate more efficiently, use less energy, and avoid costly repairs down the road.
We offer annual and seasonal HVAC maintenance plans that include:
Full system inspections
Coil and filter cleaning
Electrical checks and safety testing
Refrigerant level checks
Thermostat calibration
Performance diagnostics
Regular maintenance can help lower your utility bills, extend equipment life, and provide peace of mind year-round. It’s one of the smartest investments you can make in your home comfort.

Mini-Split Systems and Room-Specific Solutions
Have a space that’s tough to heat or cool — like a garage, attic, or new addition? We install energy-efficient ductless mini-split systems that provide targeted climate control without requiring extensive ductwork.
Mini-splits are ideal for:
- Bonus rooms and additions
- Detached buildings
- Homes without existing ducts
- Zoned heating and cooling needs
Our team will assess your space and recommend a system that delivers comfort without waste or complexity.
Ductwork and Air Quality Improvements
Your home’s ductwork plays a major role in how efficiently your HVAC system runs. Poorly sealed or damaged ducts can reduce airflow, increase energy usage, and affect indoor air quality.
We offer duct inspections and minor modifications to help restore proper airflow and improve overall performance. We also recommend air filtration upgrades and humidity control systems to improve indoor air quality — especially helpful for allergy or asthma concerns.

Service Areas
We proudly serve residential clients throughout:
Noble, OK
Norman, OK
Moore, OK
Oklahoma City, OK — surrounding areas
Edmond, OK and nearby communities
If you're located within or near the 73068 or 73072 ZIP codes, we’re your reliable local HVAC contractor.
Schedule a Service Today
Whether you're dealing with a broken air conditioner or planning a system upgrade, Harwell Heat & Air is ready to help. We bring the knowledge, tools, and customer care to handle your HVAC needs with confidence.
