Trusted Heating & AC Repair Experts in Sherman, TX

Fast, dependable HVAC services for homes and light commercial properties across Sherman and North Texas. Whether your air conditioner stops working in the middle of summer or your heater needs urgent repair, 903 Heating and Air delivers reliable solutions with professional service you can trust.

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Indoor Comfort Solutions

Improve airflow, efficiency, and home comfort

Emergency HVAC Repairs

Quick response when your system stops working

HVAC Installation

efficient heating and cooling system installations

About us

What Is Professional HVAC Repair & Installation in Sherman, TX?

Heating and cooling systems work hard in North Texas, especially during hot summers and sudden winter cold snaps. Professional HVAC service ensures your system runs efficiently, keeps your home comfortable, and prevents costly breakdowns.

At 903 Heating and Air, we provide reliable HVAC repair, installation, and maintenance services throughout Sherman, Denison, Van Alstyne, Anna, Bonham, Howe, and Pottsboro. Our team focuses on diagnosing problems quickly, recommending the right solution, and restoring comfort to your home as fast as possible.

Our Services

Proven Heating & Cooling Solutions Backed by Experience & Results

Whether you need a quick repair or a complete HVAC upgrade, our team delivers dependable solutions built for Georgia’s demanding climate. Every service is performed with attention to efficiency, durability, and long-term comfort.

1.Advanced System Diagnostics

Identify HVAC issues quickly and accurately

2. Reliable Repairs & Replacements

Long-lasting solutions for aging HVAC systems

3.Eco-Friendly Practices

Energy-efficient solutions for modern homes

4. Emergency HVAC Service

Fast response when heating or cooling fails

Why Choose us ?

Why Homeowners in Sherman, TX Trust Our HVAC Experts

Homeowners across Grayson and Fannin counties rely on 903 Heating and Air for dependable heating and cooling solutions. Our technicians take the time to diagnose issues correctly, explain repair options clearly, and provide solutions designed for long-term reliability and efficiency.

From routine maintenance to full system replacements, our goal is simple — keep your home comfortable and your HVAC system running smoothly year-round.

Successful HVAC Projects Completed
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Service Areas Covered
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Emergency Availability
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Customer Satisfaction Focus
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latest work

We Are Innovators In Heating And Cooling Solutions

Smart Thermostat Installation

Upgrade to programmable systems that improve energy efficiency

Ductwork & Airflow Solutions

Improve airflow and system efficiency with duct inspections

Heating Repair

Restore heat quickly when furnaces or heat pumps stop working

AC Maintenance

Seasonal inspections that keep cooling systems operating smoothly

System Replacement

Energy-efficient HVAC system upgrades for aging equipment
Our Process

Our HVAC Service Process

Consultation

We assess your HVAC system and understand your comfort needs.

Planning

Our team recommends the most efficient repair, upgrade, or installation solution.

Repair or Installation

Skilled technicians complete the work with precision and attention to detail.

Final Testing

We test system performance to ensure reliable heating and cooling operation.

Testimonials

What Clients Say About Us

"903 Heating and Air HVAC Contractors responded quickly when our AC stopped working during a heatwave in Grayson County, TX, US · Fannin County, TX, US Their technician diagnosed the issue fast and had our system running the same day. Highly professional service.”
John Doe
Smith
“Excellent customer service and honest recommendations. The technician explained the issue clearly and repaired our furnace quickly. We’ll definitely call them again for HVAC maintenance.”
Frank De Boor
Samantha
“We hired them for a full HVAC replacement in our home and the entire process was smooth from start to finish. The new system works perfectly and our energy bills are noticeably lower.”
Erick Lamela
Lamela
“Great service from start to finish. Scheduling was easy, and the technician took time to answer all our questions.”
Jens Lehman
Lehman

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903 Heating and Air

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