Expert HVAC Solutions, Local Commitment

Experience comfort and peace of mind with over 30 years of proven HVAC expertise, advanced technology, and true 24/7 support right here in the Tampa Bay area. Enjoy custom solutions, honest advice, and reliable service for every home or business.

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Dedication Built on Experience

Carlos Marquez has devoted more than three decades to HVAC - always focused on earning and keeping the trust of families and businesses across Tampa Bay. After graduating from Erwin Technical College in 1994, Carlos quickly rose through the industry ranks, serving first as a junior technician, then as a service manager within six years. Receiving his HVAC contractor license in 2002, he helped lead a local business before founding Tri-State Heating & Air Conditioning in 2009. Every step of the way, Carlos has adapted to changes in technology and the needs of Florida homeowners. With experience informing every project, our team believes in providing clear, honest guidance - never just a sales pitch. Through ongoing education, hands-on work, and a dedication to customer satisfaction, we make it our mission to bring lasting comfort and dependable solutions to every property.

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Complete HVAC Services

Furnace Installation
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Air Conditioner Repair
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Equipment Selection for New Projects
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Benefits of Working With Us

Expertise

With over 30 years serving clients in Gibsonton and Tampa Bay, you benefit directly from technical expertise built on real-world problem solving and continuous learning. Each recommendation is based on deep industry knowledge, so your HVAC system is designed for comfort, efficiency, and Florida's challenging climate.

Integrity

We believe every homeowner and business deserves honest answers and transparent pricing. You will never be pushed toward unnecessary products. Instead, we focus on practical solutions with clear explanations and upfront estimates - building trust through every interaction.

Comprehensive

Enjoy complete peace of mind with round-the-clock emergency service, support for all major brands, custom design for new or remodeled spaces, maintenance contracts, flexible payment options, and robust 10-year equipment warranties. Every service is tailored for long-term savings and comfort.

Brands We Work With

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HVAC Tips & Insights

Common Signs Your Air Conditioner Needs Repair - And When to Call Professionals

Tampa Bay's heat and heavy humidity leave little room for AC mishaps. In places like Gibsonton, Brandon, or Riverview, a working air conditioner isn't a luxury - it's your shield against tough summers, restless nights, and health concerns tied to high temperatures or poor indoor air quality. When an AC slips even a little, comfort fades fast. Most folks catch the warning signs too late: what starts as odd airflow or new noises sometimes ends in a total breakdown right as the

Apr 21

How Regular HVAC Maintenance Contracts Can Save You Money and Extend Equipment Life

The heat and humidity across Tampa Bay, from Gibsonton to Sun City Center, put even the best HVAC systems to the test. Scorching afternoons, long thunderstorm seasons, and months of dense salt air force air conditioners and heat pumps to run harder and wear faster than nearly anywhere else in Florida. Unchecked, this strain turns small issues - for example, a clogged drain line after a heavy rain or a dusty coil in mid-July - into uncomfortable outages and steep repair bills.