Energy-Efficient HVAC Replacement & Thermal Envelope Engineering in Waco

ABC Home & Commercial Services provides professional AC and furnace replacement for residential and commercial properties in Waco, Woodway, and Hewitt. Under the direction of Steve Gray and the statewide leadership of Bobby Jenkins, we specialize in System-to-Structure Matching. We ensure your new HVAC unit is perfectly calibrated to the "Thermal Load" of your Waco home.

a newly installed air conditioning unit

The Replacement Window: Engineering the Future of Your Home

Replacing an HVAC system is the most significant “Mechanical Investment” you will make in your property. In Waco, an oversized unit will “Short-Cycle” in our humidity, while an undersized unit will suffer “Thermal Burnout.” We perform a Manual-J Load Calculation to ensure your system matches the “bones” of your structure. We don’t just swap equipment; we re-engineer your “Mechanical Envelope” for 15+ years of reliability.

The Jenkins Standard of Installation

Choosing ABC for replacement means your “Mechanical Assets” are backed by a three-generation Texas family promise. Steve Gray oversees every installation to ensure:

The ABC Process

1 - contact us
1. Contact ABC

When you contact us, we will schedule a service call to perform a diagnostic to determine whether you need a new system.

blowing air
2. Perform Diagnostic

We'll test for air leaks, evaluate airflow, perform calculations to confirm your equipment size, inspect ductwork and confirm insulation levels.

2 - estimate calculator
3. Get Estimate

Based on what we learn during your diagnostic, we will generate an estimate that takes into account manufacturer and local rebates.

belton pool service step 4
4. Installation

We’ll make sure your system is properly installed and provide you with a recommended maintenance schedule.

ABC provides 24/7 services for air conditioning and heating system emergencies

Get Started

System-to-Structure Matching

Waco HVAC Replacement FAQ

generator services

Get Started

We offer a full range of air conditioning & heating services.

More AC & Heating Solutions in Waco

What Our Customers Are Saying

Based on 5198 reviews

Martha Bravo

4/28/2026

“I had a great experience with ABC Home & Commercial Services. Their technician, Leo Nunez, did an outstanding job. He is bilingual, very friendly, and always professional every time he visits our office building. Leo takes the time to explain everything clearly and makes sure the service is done right. His attention to detail and positive attitude really stand out, and it’s always a pleasure working with him. Overall, ABC Home & Commercial Services has been reliable, efficient, and easy to work with. I highly recommend their team, and especially Leo, for anyone looking for quality service. Thank you again for the excellent work!
— Martha Bravo”

Abbe Johannson

9/22/2026

“ABC Home and Commercial Services did a great job on our windows, driveway and pressure washing the house. They took their time in completing the job so everything shined bright and fresh. Our sales rep Paul is outstanding to work with, considerate and kind. He went the extra time to make sure the job was outstanding.”

ABC’s Complete List of Home Services In Waco

Why deal with multiple service providers when ABC can do it all?