General HVAC Services in Texas
General HVAC Services in Texas
For nearly three decades, Miller Cooling & Heating has been the trusted choice for HVAC services in San Antonio, Bexar County, and across South Texas. As a family-owned and operated company, we take pride not only in our craftsmanship but also in the strong relationships we’ve built with homeowners and businesses over the years. From day one, our mission has been to deliver practical, affordable, and reliable heating and cooling solutions—no matter the size, complexity, or urgency of the issue.
At Miller Cooling & Heating, we’re committed to keeping your property comfortable, efficient, and dependable year-round. Whether you’re a homeowner battling seasonal temperature swings or a business owner managing a large-scale HVAC system, you can count on us to handle it with expertise and care.
Our General HVAC Services in Texas include:
- Residential and commercial HVAC repair, installation, and maintenance
- Energy-efficient system upgrades to help reduce utility costs
- Indoor air quality improvements through duct cleaning, filter replacements, and ventilation solutions
- Customized HVAC solutions tailored to your property’s unique needs
Serving San Antonio, New Braunfels, Boerne, Converse, Castroville, Alamo Heights, and surrounding areas, our experienced team is dedicated to delivering the highest level of comfort and peace of mind.
When you need reliable heating, ventilation, or air conditioning service, choose the professionals who put your comfort first. Choose Miller Cooling & Heating—your trusted HVAC experts in South Texas.
At Miller Cooling & Heating, we were founded on the belief that quality workmanship and company success go hand in hand. That’s why our approach to heating and cooling services has never wavered—we don’t cut corners, and we never compromise on integrity. Every job we take on reflects our commitment to honesty, professionalism, and customer satisfaction.
With decades of combined experience, state-of-the-art equipment, and a focus on affordability, we make it easy for families and businesses to choose us with confidence. Our proven business model is built on delivering reliable results while keeping costs fair, which is why our customer base continues to grow year after year. Just as importantly, our long-time clients remain loyal because they know they can trust us to deliver consistent, dependable HVAC services in San Antonio, Bexar County and across South Texas.
Air Conditioning Repair
With so many types of residential HVAC systems—especially air conditioning units—it’s clear why having a trusted, licensed HVAC company is essential. At Miller Cooling & Heating, we provide expert air conditioning repair in San Antonio and South Texas, helping homeowners stay comfortable year-round. Whether you’re upgrading to a new AC system or designing a property from the ground up, our certified technicians are here for AC repairs, inspections, troubleshooting, system design and installation.
To give you a better idea of our expertise, we service a wide range of major AC manufacturers and HVAC systems throughout Texas. From routine maintenance to emergency AC repair, we deliver reliable cooling solutions you can count on.
Heating System Repair
Just as we’re known for our expert air conditioning repair in Bexar County, Texas, our heating, furnace and boiler repair services are second to none. Backed by decades of HVAC experience and modern installation methods, we make sure your home’s heating system runs efficiently and reliably all winter long.
Since maintaining indoor comfort is critical during Texas winters, we proudly offer affordable heating tune-ups in San Antonio and South Texas. Our discounted services include: Coil Cleaning (Condenser & Evaporator), Circuit & Electrical Inspection, Superheat & Subcooling Testing, Full System Diagnostics, Energy-Efficiency Assessments, Thermostat Calibration, Breaker Identification, and Water Heater Upgrades.
Duct Work Services
One of the most critical components of any HVAC system is the ductwork—yet it’s often overlooked by homeowners. Poorly designed or improperly installed air ducts can cause major energy loss, forcing your system to work harder while driving up utility bills. Many of our residential clients in San Antonio, Bexar County, and South Texas call us after noticing uneven temperatures, wasted airflow, or high energy costs—all common ductwork issues.
The best way to avoid these costly problems is to ensure your system is designed and installed correctly from the start. At Miller Cooling & Heating, our licensed technicians specialize in ductwork design, duct installation, and air duct repair. With our expertise, your HVAC system runs more efficiently, saving you money and improving indoor comfort.
HVAC System Services
Every HVAC system, whether heating or cooling, requires regular maintenance—or at least an annual inspection—to avoid costly repairs or replacements. Even top-rated air conditioning units and central heating systems eventually wear down over time, and without proper care, can fail and require part swaps or component replacements.
Before replacing any part, it’s crucial to accurately diagnose the issue causing your system to malfunction. At Miller Cooling & Heating, our licensed technicians provide precise HVAC diagnostics, ensuring repairs are done right the first time. We specialize in servicing a wide range of air conditioning units, furnaces, and heating systems across San Antonio, Bexar County, and South Texas, offering dependable HVAC repair, maintenance, and system expertise you can trust.
HVAC Installation Services
Every home—no matter the size, layout or ventilation design—benefits from a new HVAC installation with a modern air conditioning or heating system. With the wide variety of homes across Bexar County and San Antonio, TX, it’s vital to have a system specifically designed and calibrated for your property to ensure maximum comfort and efficiency.
At Miller Cooling & Heating, our licensed experts specialize in professional HVAC installation in San Antonio and South Texas, delivering seamless upgrades for both heating and cooling units. From standard AC systems to complex setups, we have the skill and experience to install even the most advanced HVAC equipment with precision.
Residential & Commercial HVAC Services – Comfort You Can Count On
At Miller Cooling & Heating, we understand that your comfort isn’t just a luxury — it’s essential. Whether at home or at work, a reliable HVAC system keeps your space comfortable, healthy, and energy-efficient all year long. Serving South Texas communities, we specialize in residential and commercial HVAC solutions that combine expert craftsmanship, energy-smart technology, and unmatched reliability.
Residential HVAC Services – Comfort Starts at Home
Your home is your sanctuary, and our goal is to keep it that way. From heating and cooling installation to routine maintenance and emergency repairs, our team ensures your HVAC system performs flawlessly.
Our Residential Services Include:
- Heating & Cooling Installation: We help you choose the perfect furnace, heat pump, or AC system for your home’s size, layout, and energy needs. Installation is done right the first time, and we guide you every step of the way.
- Routine Maintenance: Prevent costly breakdowns with seasonal tune-ups. Our service plans enhance efficiency, extend equipment life, and reduce energy bills.
- Repairs & Emergency Service: No heat in January or AC down in July? Our trained technicians diagnose and fix problems quickly — no upsells, just honest solutions.
- Air Quality Solutions: From purifiers to humidifiers and high-efficiency filters, we make sure the air in your home is clean, healthy, and comfortable.
Whether you live in a single-family home, condo, or multi-unit building, our residential HVAC services are designed to be flexible, affordable, and stress-free.
Commercial HVAC Services – Dependable Climate Control for Your Business
Running a business is challenging enough without worrying about HVAC problems. That’s why businesses across San Antonio, Austin, and South Texas trust us for reliable commercial HVAC services that protect comfort, productivity and energy efficiency.
Our Commercial Solutions Include:
- System Design & Installation: New builds or renovations? We collaborate with contractors, architects, and property managers to deliver HVAC systems that meet building codes and performance needs. From rooftop units to advanced zoning controls, we provide scalable solutions.
- Preventative Maintenance Contracts: Avoid costly repairs and downtime. Our service plans catch problems early and keep your systems running efficiently.
- 24/7 Emergency Repairs: HVAC emergencies don’t wait. We respond quickly to minimize disruptions, keeping your business comfortable and operational.
- Retrofitting & Upgrades: Outdated systems waste energy and money. We assess your setup and provide upgrades that reduce costs and improve performance.
- Building Automation Integration: Centralize control of temperature zones, schedules, and energy usage by integrating your HVAC system with smart building platforms.
We’ve supported retail stores, offices, restaurants, warehouses, and more, delivering consistent performance, compliance, and customer satisfaction every time.
Why South Texas Businesses & Homes Rely on Us
South Texas heat is relentless, and a poorly functioning HVAC system can drive away customers, employees, and residents alike. At Miller Cooling & Heating, we don’t just install or repair systems — we optimize your comfort and indoor air quality.
Neglected HVAC systems can lead to clogged filters, duct contaminants, and stale or unhealthy air. These issues can trigger allergic reactions, unpleasant odors, or even health concerns. Whether for your home or business, our technicians ensure your air is clean, safe, and perfectly conditioned year-round.
Why Choose Miller Cooling & Heating?
At Miller Cooling & Heating, we’re not just another HVAC contractor. We take pride in our reputation for reliability, top-notch workmanship, and exceptional customer service. Whether you’re a homeowner or manage a business, we treat your space as if it were our own. Here’s what makes us stand out:
1. Full-Service HVAC Solutions
From heating and air conditioning installation to routine maintenance, energy audits, and emergency repairs, we handle it all. No need to juggle multiple contractors — one call to Miller, and it’s done.
2. Licensed, Certified and Insured Technicians
Our team is fully trained, certified and background-checked. We stay current with industry standards, local building codes and manufacturer specifications to ensure safe and reliable service every time.
3. Customized Solutions for Every Property
We don’t do cookie-cutter fixes. Every project begins with a thorough evaluation of your space, and we recommend only what’s necessary — nothing more, nothing less.
4. Energy Efficiency That Saves You Money
We prioritize energy-smart HVAC systems without compromising comfort. From high-SEER AC units to programmable thermostats, we help reduce your energy bills while keeping your home or business comfortable year-round.
5. Clear Communication
No hidden fees. No pushy sales tactics. We clearly explain what needs to be done, why it matters, and how much it’ll cost. Honest service and straight talk are at the core of everything we do.
Serving the Community
We proudly serve San Antonio and surrounding communities with honesty, integrity and high-quality service. Whether it’s a quiet neighborhood home or a busy commercial property, we deliver the same exceptional attention and care. We believe in getting it right the first time and building lasting relationships based on trust, not transactions.
Ready to upgrade your HVAC system? Need emergency repairs? Looking for a second opinion on a big project? Contact Miller Cooling & Heating today. Experience the difference a dependable, experienced HVAC partner can make for your home or business.
Call now or schedule a consultation online. Let’s keep things comfortable.