HVAC Services San Antonio TX | Call Coolmark Heating and Air
309 W Nakoma, San Antonio, TX 78216
FAQs
How often should I have my air ducts cleaned in San Antonio's climate?
In our local environment, with its high pollen counts and occasional dust storms, we generally recommend having your air ducts inspected and cleaned every 3 to 5 years. This helps maintain good indoor air quality and ensures your HVAC system doesn't have to work harder than necessary. During our free estimate, we can assess your specific home and ductwork to provide a personalized recommendation.
I think my AC isn't cooling as well as it used to. Could this be a refrigerant leak or dirty coils?
Yes, those are two of the most common issues we see in San Antonio homes. Refrigerant leaks reduce your system's cooling capacity, while dirty condenser coils—often clogged with our local pollen and dust—make the unit work inefficiently. As part of our free diagnostic service, our technicians will check for both. We'll clearly explain the issue, provide a repair estimate, and ensure you're informed before any work begins.
What does your HVAC installation process include, and do you offer financing?
Our installation service is comprehensive. We handle the entire process, from removing your old unit and ensuring proper sizing for your home to a clean, professional installation and thorough testing. We stand behind our workmanship and offer a 10-year parts warranty on units we sell. Yes, we do offer financing options to make a new, efficient system more accessible, and we always provide a free, detailed estimate upfront with no obligation.
Company Background
Coolmark Heating and Air is a locally owned and operated San Antonio HVAC company, founded by Mark, a born-and-raised native who brings over a decade of field experience to every job. Driven by a commitment to do things better, Mark built Coolmark on principles of honesty, dependability, and treating every home as if it were his own. The company provides a full range of heating and air conditioning services, from installation and maintenance to 24/7 emergency repairs, always prioritizing customer satisfaction and clear communication. Coolmark stands out by offering straightforward value—unparalleled service, fair pricing, free estimates, and financing options, along with discounts for military members and seniors. It’s a company built on local trust, where the owner’s personal dedication ensures your comfort is in reliable hands.
Property Service Solutions
- HVAC installation or replacement
- Air duct cleaning
Business Location & Hours
| Mon: | Open 24 hours |
| Tue: | Open 24 hours |
| Wed: | Open 24 hours |
| Thu: | Open 24 hours |
| Fri: | Open 24 hours |
| Sat: | Open 24 hours |
| Sun: | Open 24 hours |























