Welcome to Dennis Heating and Cooling
Your Trusted HVAC Experts in San Antonio & Surrounding Areas

Welcome to Dennis Heating and Cooling
Your Trusted HVAC Experts in San Antonio & Surrounding Areas

Welcome to Dennis Heating and Cooling
Your Trusted HVAC Experts in San Antonio & Surrounding Areas


About us
Your go-to solution for all your HVAC needs in San Antonio and surrounding areas.
We specialize in air conditioning, heating, and ventilation services for both residential and commercial properties. Whether you need a new installation, a system repair, or routine maintenance, our experienced team is here to keep your home or business comfortable year-round.
We provide FREE estimates and service all major brands, ensuring you receive the best solutions tailored to your needs. From installation to ongoing maintenance, we guarantee reliable and affordable services, no matter the size of the job.
Call any time for services
(210) 630-3236
Air Conditioning Services

AC Installation
Stay cool during the hot Texas summers with professional air conditioning installation. We help you choose the right unit for your needs and budget, ensuring maximum comfort and efficiency.

AC Repair
If your air conditioner isn’t working right, our expert technicians will diagnose and repair the issue quickly. We’re here to get your home or office back to the perfect temperature.

AC Maintenance
Keep your system running smoothly with regular maintenance. Our AC tune-ups help extend the lifespan of your equipment and ensure it operates efficiently.
Heating Services

Furnace Installation
Stay warm and cozy in the winter with a new furnace installation. We provide reliable, energy-efficient systems that are ideal for your space.

Furnace Repair
If your furnace is malfunctioning or making strange noises, our team is here to fix it. We provide quick, dependable repairs to keep you comfortable.

Heating Maintenance
Routine maintenance is key to keeping your heating system running efficiently. Our maintenance services include checking components, cleaning filters, and ensuring everything is operating properly.
Ventilation Services

Air Duct Cleaning
Improve air quality and system efficiency with professional duct cleaning.
We remove dust, debris, and allergens, making your home healthier and your system more efficient.

Ventilation Installation & Repair
We provide expert installation and repair services for ventilation systems, ensuring proper airflow throughout your property. We help optimize indoor air quality and efficiency.
Why Choose Us
Free Estimates
We offer free estimates for all of our services! Whether you need an AC repair, a new furnace installation, or any other HVAC service, we’ll give you a detailed, no-obligation quote.

100%
Recommended

Faq
Frequently Asked Questions
Air conditioning system is best for your home Our FrostFree Consultation air a service provides expert guidance tailored to your specific needs.
How do I know if I need a new HVAC system?
If your current system is over 10 years old, requires frequent repairs, or isn’t maintaining a consistent temperature, it might be time for a replacement. Our team can provide a free consultation and help you determine the best solution for your needs.
Do you offer emergency HVAC services?
Yes, we offer emergency services for heating and cooling issues. If your system breaks down unexpectedly, give us a call, and we’ll dispatch a technician to assist you right away.
What should I do if my AC isn’t cooling properly?
If your AC isn’t cooling as it should, it could be due to several reasons, such as a clogged filter, low refrigerant, or a malfunctioning component. Contact us to schedule a repair, and we’ll get it fixed fast.