
When your cooling system begins to struggle during the peak of Texas heat, homeowners in Murphy know how quickly comfort can vanish. If your AC is no longer reliable, constantly needs repairs, or isn’t cooling your home effectively, it may be time for a professional AC replacement in Murphy, TX. At DT Air Conditioning & Heating, we specialize in delivering reliable, energy-efficient solutions tailored to your home’s unique needs.
Homeowners should consider AC replacement when their system is more than 10–15 years old, requires frequent costly repairs, or fails to keep energy bills manageable. Newer units offer improved efficiency, advanced technology, and long-term savings, making replacement a smart investment for comfort and value.
It’s not always obvious when your system has reached the end of its life. Watch for these key warning signs:
If you notice these symptoms, DT Air Conditioning & Heating can help determine whether repair or replacement is the best choice for your home.
Investing in a new AC system brings more than just comfort. Homeowners in Murphy enjoy:
Every home in Murphy has different needs. Our experts help you select the right system based on:


We follow a proven process to ensure your investment delivers lasting results:
Whether building a new home or upgrading an outdated unit, our installation services guarantee the right fit and long-term efficiency.
If your unit still has years of life left, we provide expert repair, and replacement services. But when replacement is the smarter financial choice, we guide you through every step.
Texas heat doesn’t wait for convenience. Our team offers emergency service to restore comfort when you need it most.
The cost of AC replacement depends on the size of your home, system efficiency, and installation requirements. At DT Air Conditioning & Heating, we provide upfront estimates with financing options to fit your budget.
In the Texas climate, AC units typically last 10–15 years. Proper maintenance can extend lifespan, but high heat and heavy use often shorten it. Upgrading to a modern system can reduce breakdowns and energy costs.
If your AC is under 10 years old and the repair is minor, fixing it may be the better choice. However, if your system is aging, requires frequent repairs, or costs more than half the price of a new unit to fix, replacement is usually more cost-effective.
The right AC size depends on square footage, insulation, and ductwork. Oversized units waste energy, while undersized units struggle to cool effectively. Our technicians perform detailed load calculations to ensure the perfect fit for your home.
Homeowners in Murphy trust us because:
Protect your investment with regular maintenance. Our team offers seasonal tune-ups to:
Routine maintenance not only extends lifespan but also keeps warranties valid.
A: While possible, it’s often not recommended. Matching indoor and outdoor units ensures efficiency and performance.
A: Yes. Modern systems with higher SEER2 ratings reduce monthly energy bills significantly.
A: We offer fast scheduling, and in many cases, installation can be completed within 1–2 days.
A: We work with trusted, high-quality manufacturers to deliver reliable performance and warranty protection.