THA Heating & Air—Expert HVAC Services in National City, CA
Your Trusted HVAC Company in National City
When it comes to keeping your home or business comfortable year-round, THA Heating & Air is the team National City residents trust. Whether it’s air conditioning repair during a heatwave, a new furnace installation for chilly winter nights, or a quick HVAC tune-up before the season changes, our licensed technicians deliver fast, reliable, and affordable service every time.
We proudly serve homeowners, business owners, and property managers throughout National City and the greater South Bay area—always with a commitment to quality workmanship, honest pricing, and your complete satisfaction.
Comprehensive HVAC Services in National City
We provide full-service heating and cooling solutions, including:
Why National City Homeowners Choose THA Heating & Air
Local Expertise
We know National City’s coastal climate and tailor our solutions for maximum comfort and efficiency.
Fast Response
Same-day and emergency HVAC services when you need them most. • Transparent Pricing – No hidden fees, ever.
Proudly Serving National City Neighborhoods
From Kimball, Central, and Downtown National City to areas like Paradise Hills and Sweetwater, our team is just minutes away. We also serve nearby communities, including Chula Vista, Imperial Beach, San Diego, and Bonita.
Frequently Asked Questions About HVAC Services in National City
How often should I have my HVAC system serviced?
It’s recommended to have your HVAC system serviced at least once a year, ideally before the summer or winter seasons, to ensure optimal performance and extend its lifespan.
What are the signs that my air conditioner needs repair?
Common signs include insufficient cooling, strange noises, unpleasant odors, increased energy bills, or frequent cycling on and off.
Can you help improve indoor air quality in my home?
Yes, we offer various indoor air quality solutions such as air purifiers, humidifiers, and dehumidifiers to enhance air cleanliness and comfort.
Do you provide emergency HVAC services in National City?
Absolutely! We offer 24/7 emergency HVAC repair services to ensure you’re never left without heating or cooling when you need it most.
Are your technicians licensed and insured?
Yes, all our technicians are fully licensed, insured, and trained to handle all HVAC makes and models safely and efficiently.
What brands of HVAC systems do you service and install?
We service and install all major HVAC brands and models, ensuring you receive expert care regardless of your system.
Do you offer maintenance plans to prevent breakdowns?
Yes, our preventative maintenance plans help reduce costly breakdowns and keep your system running smoothly year-round.
What Our National City Customers Are Saying
Schedule Your HVAC Service in National City Today
Don’t wait until your system breaks down—let our experts keep your home or business comfortable all year long. Call us at (858) 571-8865.
