About Hammack Service Company If you’re looking for heating and cooling services or expertise in Richardson and surrounding communities, look no further than Hammack Service Company. We’ve been around since 1972, so our staff is knowledgeable and fully trained on a full range of HVAC products, maintenance, technology – you name it. We provide quality HVAC installation and service with fair pricing and superior customer service. Aside from our excellent service, we also offer a wide range of high technology and innovative Lennox® HVAC products. If you’ve heard the Lennox name before, you probably know about its dedication to creating quality equipment through continuous innovation. When you work with Hammack Service Company, you’ll find products that may be more efficient and could even help reduce your utility costs. We’re committed to building trust through customer service and helping you achieve whole-home comfort. We even provide portable room air conditioners to customers while we prepare to install their new systems—that’s how committed we are to your continuous home comfort. Whether you need heating and cooling services such as repair and maintenance, or you need to replace your HVAC system, we’re ready to help. Call Hammack Service Company in Richardson at 972-351-8874 to learn more, or schedule an appointment online to start working with us.