It's in our blood!

Reliable Electrical and HVACR Solutions for Homes, Businesses, and Industry.

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DNA Electric Heating and Air Conditioning keeps your home or business running smoothly year-round. With 20+ years of electrical and 10+ years of HVACR experience, our Denison, TX team delivers reliable solutions you can trust.

Experience That Powers Results

DNA Electric Heating and Air Conditioning LLC has built its reputation on 20+ years of electrical expertise and over 10 years in HVACR service. We specialize in residential, commercial, and industrial projects—delivering everything from quick troubleshooting to complex system design and installation. Our mission is simple: to provide the best service possible through integrity, craftsmanship, and customer-first values.

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Why Homeowners Trust DNA Electric Heating & Air

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Licensed Experts

Our fully licensed and certified team ensures every job meets the highest safety and quality standards.

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Reliable Service

We provide timely, dependable service, completing every project efficiently without compromising quality.

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Tailored Solutions

Each solution is customized to your home or business needs, from installations to complex repairs.

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Trusted Professionals

Our experienced team is committed to safety, professionalism, and building long-term client relationships.

HVAC Services in Denison & North Texas

At DNA Electric Heating and Air Conditioning, we bring over a decade of dedicated HVACR expertise to keep homes, businesses, and industrial spaces comfortable year-round. From precise troubleshooting and timely repairs to complete system installations and custom designs, our team ensures every job meets the highest standards of efficiency, safety, and performance. Whether it’s beating the Texas heat or staying warm through winter, you can count on us for reliable heating, cooling, and refrigeration solutions.

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HVAC Inspection


When your system isn’t running right, our expert technicians provide fast, accurate diagnostics to identify the root cause. We use advanced tools and proven methods to spot issues before they become costly breakdowns.


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HVAC Install


From single-family homes to large commercial buildings, we design and install HVAC systems that deliver long-lasting performance. Every installation is customized to your space, energy needs, and budget.


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HVAC Repair


Whether it’s a minor fix or a major breakdown, we handle all types of HVAC repairs with precision. Our licensed team is trained to service all makes and models, restoring comfort and efficiency while keeping safety as the top priority.


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HVAC Design


For new construction and complex projects, we specialize in HVAC design tailored to residential, commercial, and industrial applications. Our designs prioritize airflow efficiency, energy savings, and code compliance.


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Electrical Services

Comprehensive Electrical Service

Our licensed electricians provide safe, reliable electrical solutions for residential, commercial, and industrial clients. From routine repairs to complex installations, we ensure your property is powered efficiently and up to code.

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Troubleshooting Electrical Issues

Our team quickly identifies and resolves electrical problems to ensure your home or business remains safe, efficient, and fully powered.

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Installation & Repair

We handle installations and repairs for all types of electrical systems, delivering reliable results that meet safety standards.

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Residential & Commercial Wiring

From homes to businesses, our wiring services ensure safe, code-compliant connections for all electrical systems.

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Electrical Panel Upgrades

Upgrade your electrical panel to support modern power demands, improve safety, and prevent outages.

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Lighting Installation (Indoor & Outdoor)

We install and repair lighting solutions that enhance safety, energy efficiency, and the look of your property.

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Our Customer Commitment

At DNA Electric Heating and Air Conditioning LLC, we build our reputation on trust, professionalism, and exceptional service. While reviews are just beginning to grow, our clients know they can rely on us for safe, efficient, and tailored electrical and HVACR solutions every time.

Happy Clients,

Clean Spaces

Our clients rave about our impeccable services, ensuring your satisfaction every time, without fail.

Serving Denison & Surrounding Communities

DNA Electric Heating and Air Conditioning LLC proudly provides expert electrical and HVACR services to Denison, TX, and the surrounding areas. Our team is committed to delivering reliable, safe, and efficient solutions to homes, businesses, and industrial clients throughout Grayson, Collin, Cooke, and Fannin Counties. We cover a standard service area of up to 30 miles from Denison with no extra charge. For locations beyond that radius, a reasonable service area fee applies to ensure we can continue delivering the same prompt, professional service you can count on.

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Emergency & After-Hours Service

Life doesn’t always wait for business hours — and neither do we. DNA Electric Heating and Air Conditioning LLC offers same-day emergency calls to restore power, heating, or cooling when you need it most. For urgent issues outside our standard hours, we provide after-hours service at an additional fee, ensuring you’re never left without help. Within 30 miles of Denison, there’s no extra travel charge; beyond that radius, a small service area fee applies.

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