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Efficiency in Every Breath.
At United AC & Heating LLC, our mission is to provide exceptional heating, cooling, and ventilation solutions that enhance the quality of life for our customers. We are committed to delivering reliable, customized services to maintain comfortable and healthy indoor environments year-round.
we have 35 years of experience
Welcome to United AC & Heating LLC. Experience the pinnacle of indoor comfort with United AC & Heating LLC. We specialize in providing exceptional heating, cooling, and ventilation solutions that cater to your unique needs. From precise installations and efficient repairs to comprehensive maintenance, our skilled technicians are dedicated to delivering top-quality HVAC services that prioritize your comfort and satisfaction.
Reliable HVAC, Unmatched Comfort.
Years Of Experience
Professionals
Miles Around San Antonio, TX
On Time
a little about us
From installations that meet the highest standards to repairs that restore optimal performance, we go above and beyond to ensure your satisfaction. United AC & Heating LLC is not just about maintaining indoor temperatures – it's about enhancing your quality of life through superior HVAC services. Our expertise and dedication make us your reliable partner for HVAC solutions in San Antonio, TX.

Mission
At United AC & Heating LLC, our mission is to provide exceptional heating, cooling, and ventilation solutions that enhance the quality of life for our customers. We are committed to delivering reliable, customized services to maintain comfortable and healthy indoor environments year-round.
Vision
Our vision at United AC & Heating LLC is to be a leader in the HVAC industry, recognized for our customer service excellence, technical innovation, and commitment to customer comfort and satisfaction. We aim to create optimal indoor spaces that enrich people's lives.
Why choose us
Choose United AC & Heating LLC because our 35 years of industry experience back our ability to provide reliable and effective HVAC solutions. Our highly trained team is dedicated to delivering exceptional service tailored to your needs, with the goal of ensuring comfort and well-being in your home or business.

Choose United AC & Heating LLC for reliable, effective, and personalized HVAC solutions that elevate your indoor living experience. Located in San Antonio, TX, we have a remarkable 35 years of experience ensuring your space remains cozy in winter, cool in summer, and filled with fresh air year-round.
Our Services
Air Conditioning Installation & Repair
Our team at United AC & Heating LLC specializes in comprehensive air conditioning installation and repair services. We understand the importance of a properly functioning AC system, especially during the hot Texas summers. Whether you're in need of a new installation or require repairs to restore cooling efficiency, our experienced technicians are equipped to handle any challenge. We take pride in our meticulous approach, ensuring that every component of your AC system is in optimal condition. With our expertise, you can enjoy reliable and efficient cooling in your home or commercial space.
Air Conditioning Cleaning
Regular air conditioning cleaning is essential for maintaining the efficiency and hygiene of your cooling system. At United AC & Heating LLC, we offer professional AC cleaning services that target dust, debris, and contaminants that can accumulate within the system. Our technicians use specialized tools and techniques to thoroughly clean the condenser coils, evaporator coils, and other components of your AC unit. This not only improves the system's efficiency but also enhances indoor air quality, providing you with a comfortable and healthy living environment. With our expertise, you can trust that your AC system will operate at its best, delivering optimal cooling performance while keeping energy consumption in check.
Air Conditioning Replacement
When your existing air conditioning system is no longer efficient or cost-effective to repair, United AC & Heating LLC is here to provide reliable air conditioning replacement services. Our experienced technicians assess your cooling needs and recommend suitable replacement options that match your requirements and budget. We guide you through the selection process, helping you choose a modern, energy-efficient AC system that will keep your indoor spaces comfortable while reducing energy costs. Our installation process is meticulous, ensuring that your new AC unit is installed correctly and functioning at its peak performance. With our air conditioning replacement services, you can enjoy enhanced comfort and improved energy savings.
Evaporator Coils
The evaporator coils play a crucial role in the cooling process of your air conditioning system. Over time, these coils can become dirty and clogged, leading to decreased cooling efficiency and higher energy consumption. At United AC & Heating LLC, we offer specialized evaporator coil cleaning and maintenance services. Our technicians use industry-leading techniques to remove dirt, debris, and buildup from the coils, restoring their efficiency and performance. Regular maintenance of the evaporator coils not only ensures optimal cooling but also extends the lifespan of your AC system. With our expertise, you can trust that your cooling system will operate smoothly, delivering consistent comfort and energy savings.
Condensing Unit
The condensing unit is a critical component of your air conditioning system that is responsible for releasing heat from your home. Over time, the condensing unit can become clogged with dirt, debris, and dust, affecting its efficiency and performance. United AC & Heating LLC offers professional condensing unit cleaning and maintenance services to ensure optimal cooling efficiency. Our technicians thoroughly clean the unit, removing obstructions and buildup that can hinder its operation. By maintaining a clean and well-functioning condensing unit, you can enjoy consistent cooling comfort and improved energy efficiency. With our expertise, you can trust that your AC system will operate at its best, providing reliable cooling while keeping energy costs in check.
Refrigerants
Refrigerants are essential for the cooling process in your air conditioning system, and proper handling and maintenance are crucial to ensure optimal performance. At United AC & Heating LLC, we offer refrigerant services that include leak detection, repair, and recharging. Our experienced technicians are trained to handle various types of refrigerants and are equipped with advanced tools to diagnose and fix any refrigerant-related issues. Whether you're experiencing a refrigerant leak or your system needs a recharge, we've got you covered. Our priority is to ensure that your AC system operates efficiently, providing reliable cooling while minimizing environmental impact.
Heating System Installation & Repair
When it comes to heating systems, United AC & Heating LLC offers top-notch installation and repair services to keep you warm during the colder months. Whether you're looking to install a new heating system or need repairs to restore functionality, our experienced technicians have the expertise to handle various heating systems. We assess your heating needs and recommend suitable options that align with your preferences and budget. From gas furnaces to electric furnaces, we provide comprehensive solutions to ensure your comfort. Our meticulous installation and repair services ensure that your heating system operates at its best, delivering efficient and reliable warmth.
Heating System Replacement
If your heating system is outdated, inefficient, or requiring frequent repairs, it may be time for a replacement. United AC & Heating LLC specializes in heating system replacement services, offering modern and energy-efficient options that match your heating needs. Our experienced technicians guide you through the selection process, helping you choose a heating system that provides optimal comfort and energy savings. We ensure a seamless replacement process, from removing the old unit to installing the new one and ensuring proper functionality. With our heating system replacement services, you can enjoy a warm and cozy indoor environment while reducing energy costs.
Gas Furnace Repair
Gas furnaces are a common heating solution for homes and commercial spaces, providing reliable warmth during the colder months. If your gas furnace is experiencing issues such as reduced heat output, strange noises, or inconsistent operation, United AC & Heating LLC offers professional gas furnace repair services. Our experienced technicians diagnose the problem accurately and provide efficient solutions to restore the functionality of your gas furnace. From fixing ignition problems to addressing airflow issues, we ensure that your gas furnace operates safely and efficiently, providing you with consistent and reliable heating comfort.
Electric Furnace Repair
Electric furnaces offer efficient and reliable heating for residential and commercial spaces. If you're experiencing issues with your electric furnace, such as uneven heating or system malfunctions, United AC & Heating LLC is here to provide expert electric furnace repair services. Our experienced technicians have the knowledge to diagnose and address various electric furnace issues, ensuring that your heating system operates optimally. Whether it's faulty heating elements, thermostat problems, or electrical malfunctions, we offer efficient and reliable solutions to keep your indoor spaces warm and comfortable.
Commercial Refrigeration
Commercial refrigeration systems play a vital role in businesses such as restaurants, grocery stores, and food service establishments. At United AC & Heating LLC, we offer specialized commercial refrigeration services to ensure the proper functioning of your refrigeration equipment. From walk-in coolers/freezers to commercial ice machines, we provide maintenance, repairs, and installations to keep your refrigeration systems running smoothly. Our experienced technicians understand the unique needs of commercial establishments and are committed to providing prompt and reliable solutions to prevent disruptions to your business operations.
Walk-In Coolers/Freezers
Walk-in coolers and freezers are essential for preserving perishable goods in commercial environments. If your walk-in cooler or freezer is experiencing temperature fluctuations, icing issues, or other malfunctions, United AC & Heating LLC offers professional repair and maintenance services. Our experienced technicians have the expertise to diagnose and address various issues, ensuring that your walk-in cooler or freezer operates at the proper temperature and humidity levels. We also offer preventive maintenance to extend the lifespan of your equipment and prevent costly breakdowns. With our services, you can trust that your walk-in cooler or freezer will maintain consistent temperature control, preserving the quality of your products.
Duct Work
Efficient ductwork is essential for distributing heated or cooled air throughout your home or commercial space. At United AC & Heating LLC, we provide comprehensive ductwork services, including installation, repair, and maintenance. Our experienced technicians assess the condition of your ductwork and offer solutions to address issues such as leaks, blockages, and inadequate insulation. Properly functioning ductwork ensures that your heating and cooling systems operate efficiently, providing consistent comfort while minimizing energy waste. With our expertise, you can enjoy improved indoor air quality and enhanced heating and cooling performance.
Full System Commissioning
Full system commissioning is a crucial step in ensuring that your HVAC system operates at its optimal performance. United AC & Heating LLC offers comprehensive commissioning services that involve a thorough inspection, testing, and adjustment of your heating and cooling systems. Our experienced technicians verify that all components are functioning correctly and calibrated properly to deliver efficient and reliable performance. With our full system commissioning services, you can be confident that your HVAC system is operating at peak efficiency, resulting in improved comfort and energy savings. We meticulously go through each aspect of your system, from the thermostat to the ductwork, to guarantee that everything is working harmoniously.
Energy Efficiency Checkups
Energy efficiency is a key factor in reducing utility costs and minimizing your environmental impact. United AC & Heating LLC offers energy efficiency checkup services to assess the efficiency of your HVAC systems. Our skilled technicians perform thorough inspections, identifying areas where energy may be wasted and suggesting improvements. From optimizing thermostat settings to addressing air leaks in the ductwork, we provide practical solutions to enhance energy efficiency. By investing in energy efficiency checkups, you not only save money on your utility bills but also contribute to a more sustainable future.
Heat Pumps
Heat pumps are versatile systems that provide both heating and cooling for your indoor spaces. United AC & Heating LLC specializes in heat pump installation, repair, and maintenance services. Our experienced technicians help you choose the right heat pump for your needs, considering factors such as climate, energy efficiency, and your budget. We offer reliable repairs to address issues like refrigerant leaks, compressor malfunctions, and thermostat problems. Regular maintenance ensures that your heat pump operates efficiently year-round, keeping you comfortable in all seasons.
Air Filters
Clean and efficient air filtration is essential for maintaining good indoor air quality. United AC & Heating LLC offers air filter services, including installation and replacement, to ensure that your HVAC system filters out pollutants effectively. Our experienced technicians help you select the right type of air filter for your system and provide regular replacements to maintain optimal filtration. Clean air filters not only improve the quality of the air you breathe but also contribute to the longevity and efficiency of your HVAC equipment.
Insulation
Proper insulation is crucial for maintaining comfortable indoor temperatures and minimizing energy waste. United AC & Heating LLC offers insulation services, including ceiling insulation and floor insulation, to enhance the energy efficiency of your home or commercial space. Our skilled technicians assess your insulation needs and provide solutions that help regulate indoor temperatures year-round. Whether you need to insulate your attic, walls, or floors, our team ensures that your spaces are well-protected from external temperature fluctuations.
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