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Professional Thermostat Services

We like to think of the thermostat as the boss of HVAC — it tells all systems what to do. However, many people don’t realize the depth of a thermostat’s impact on their bank accounts. Is your thermostat saving money or causing headaches? Whether you need to upgrade a slider model from the 70s or your cutting-edge thermostat is spazzing out, we’re the solution. More than 20 years of experience have equipped us with the knowledge, skills, and tools to keep HVAC control in your hands. We proudly service broken thermostats, poorly located thermostats, loose wiring, programming glitches, and power issues.

Heating & Air Conditioning Repair in San Antonio Texas


Thermostat Installation

Residential | Commercial | Industrial | Specialty | Customized

At Miller Cooling & Heating, we understand the pivotal role thermostats play in creating an efficient and comfortable indoor environment. We offer top-notch thermostat installation services for residential, commercial, and industrial spaces in addition to providing specialized and customized solutions tailored to your specific needs. Our residential services aim to optimize the comfort and efficiency of your home. Whether you're upgrading an old thermostat or installing a new one in a new home, our team has the expertise to ensure the job is done correctly. We work with a wide range of thermostats including programmable, smart, and Wi-Fi thermostats that offer superior control over your home's climate. For our commercial and industrial clients, we understand that the needs can be more complex. From single-zone thermostats to advanced multi-zone systems, we install a variety of commercial-grade thermostats designed to handle larger spaces and higher demands. Our goal is to enhance energy efficiency, comfort, and control in your business or industrial property. We also specialize in providing specialty and customized thermostat installation services. Whether you have unique architectural features, specific energy management needs, or require integration with existing systems, we have the skills and experience to create a solution that's just right for you. At Miller Cooling & Heating, we're not just about getting the job done; we're about getting it done right.

Thermostat Inspections and Upgrades

Residential | Commercial | Industrial | Specialty | Customized

At Miller Cooling & Heating, we're dedicated to helping our clients maintain the perfect indoor climate with our expert thermostat inspections and upgrades. Catering to a range of residential, commercial, and industrial clients, we also excel in providing specialty and custom-tailored solutions. For homeowners, our team delivers in-depth inspections, assessing the current state of your thermostat. We'll ensure it's operating efficiently and effectively. If it isn't, or if it's an older model, we offer a host of modern upgrades to help improve the climate control in your home and enhance energy efficiency. In the commercial and industrial sectors, a fully operational thermostat isn't just a matter of comfort, but also a contributor to overall operational efficiency. We undertake thorough inspections to identify any potential issues and recommend suitable upgrades. Our team can install state-of-the-art thermostats designed to meet the rigorous demands of larger spaces while optimizing energy use. Understanding that every client is unique, we also provide specialty services and custom solutions. Whether you need a thermostat integrated with your smart home system or a specific setup for a uniquely designed building, we've got you covered. Our seasoned experts can suggest and install the ideal thermostat to match your precise needs. Choose Miller Cooling & Heating for all your thermostat inspection and upgrade needs.


Thermostat Upgrades

Residential | Commercial | Industrial | Specialty | Customized

Miller Cooling & Heating is committed to enhancing your comfort and efficiency with our superior thermostat upgrade services. We cater to an array of clients, from residential to commercial and industrial settings, and we're adept at providing specialty and customized solutions to meet unique requirements. For homeowners seeking to modernize their living spaces, our residential thermostat upgrades can significantly improve your home's climate control and energy consumption. Whether it's replacing an old, underperforming unit or embracing new smart home capabilities, our experts are ready to install a thermostat that best suits your lifestyle. In the commercial and industrial sectors, managing indoor climate is critical for productivity and cost-effectiveness. We offer thermostat upgrades tailored to meet the demands of these larger spaces, ensuring a consistently comfortable environment while maximizing energy efficiency. From single-zone to advanced multi-zone thermostats, we can install the perfect solution for your business or industrial facility. Our team also excels in providing specialty and customized thermostat upgrades. Whether your property has unique architectural considerations, or you require an advanced, integrated system, we can design and install a thermostat solution that matches your specific needs. We pair our in-depth industry knowledge with a commitment to quality and client satisfaction to provide you with optimal climate control solutions. Trust us to deliver top-tier thermostat upgrade services for your residential, commercial, or industrial space.

Thermostat Maintenance

Residential | Commercial | Industrial | Specialty | Customized

We carry out routine checks and necessary adjustments to keep your thermostat running smoothly, ultimately promoting energy efficiency and the longevity of your system. In the commercial and industrial spheres, regular thermostat maintenance is critical to maintaining an optimal working environment and controlling operational costs. We provide expert upkeep services for single-zone and multi-zone thermostats, carrying out regular inspections and prompt repairs to avoid any disruptions that could affect your business. When it comes to specialty and customized thermostat maintenance, our expert team rises to the challenge. We understand that every building and system has its own set of unique demands. That's why we offer tailor-made maintenance plans to accommodate special architectural considerations, advanced integrated systems, or any other unique requirements you may have. Trust your thermostat maintenance to Miller Cooling & Heating. Our extensive knowledge, commitment to quality, and dedication to customer satisfaction set us apart. We strive to ensure that your thermostat performs optimally, making your space comfortable and energy-efficient. Let us provide you with the specialized care your thermostat needs. Miller Cooling & Heating takes pride in offering comprehensive thermostat maintenance services for residential, commercial, and industrial clients, alongside custom-tailored solutions for those with special needs.