Rooftop HVAC Units

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Rooftop HVAC Units in Lutz, Tampa & Surrounding Areas

Rooftop HVAC units (RTUs) are a smart, space-saving solution for commercial buildings in Florida—delivering powerful heating, cooling, and ventilation from a single, compact system. At Dymond Heating & Cooling, we specialize in new rooftop unit installations, system replacements, fast repairs, and ongoing maintenance to keep your building running efficiently year-round.

Whether you're upgrading outdated equipment, planning a new build, or dealing with an unexpected breakdown, our team provides tailored rooftop HVAC solutions that meet the unique demands of your business. We serve all types of commercial properties, from office buildings and retail spaces to warehouses and multi-tenant facilities across Lutz, Tampa, Land O’ Lakes, Wesley Chapel, and nearby areas.

If your rooftop HVAC unit is underperforming, making unusual noises, or failing to keep up with heating and cooling demands, Dymond Heating & Cooling HVAC is here to help. Contact us today to schedule expert RTU service.

Dymond Heating & CoolingAt Dymond Heating & Cooling, we’re proud to serve homeowners and businesses throughout the Greater Tampa Bay area.

Our team provides expert rooftop HVAC services in Lutz, Land O’ Lakes, Tampa, Wesley Chapel, Odessa, New Port Richey, Zephyrhills, Brooksville, Carrollwood, Citrus Park, Hudson, and Spring Hill.

If you’re in need of reliable air conditioning solutions in Pasco, Hillsborough, or Hernando County, we’re just a call away.

If you'd like to schedule an estimate for our rooftop HVAC services please give us a call (813) 758-1099 or fill out our online estimate request form and we'll get right back to you.

Rooftop HVAC Services

Our Rooftop HVAC Services

At Dymond Heating & Cooling, we provide complete rooftop HVAC solutions for commercial buildings across Lutz, Tampa, Land O’ Lakes, Wesley Chapel, and surrounding areas. Whether you're managing a small retail space or a large multi-tenant facility, we offer expert service that keeps your system running efficiently year-round.

Our rooftop unit services include:

    • New Rooftop Unit Installation We size and install high-efficiency RTUs tailored to your building’s layout, usage, and ventilation needs.
    • Replacements for Aging or Oversized Units If your current unit is underperforming, over-sized, or past its prime, we’ll recommend and install the right replacement to improve comfort and reduce energy costs.
    • Emergency Repairs HVAC breakdown? We respond quickly to restore service and minimize disruption to your business.
    • Seasonal Tune-Ups Routine inspections and maintenance to keep your RTU running smoothly and catch problems early—especially before Florida’s peak cooling season.
    • Maintenance Agreements for Long-Term Protection Scheduled service plans designed to extend the life of your equipment, improve efficiency, and help you avoid unexpected repair costs.

Whether you’re installing a new unit or keeping an existing system in peak condition, Dymond Heating & Cooling is your trusted commercial HVAC partner.

If you'd like to schedule rooftop HVAC services please give us a call (813) 758-1099 or fill out our online estimate request form and we'll get right back to you.

Rooftop Unit Maintenance for Florida Businesses

In Florida’s hot, humid climate, your rooftop HVAC unit works harder and longer than in most regions—which makes routine maintenance essential. At Dymond Heating & Cooling, we provide expert RTU maintenance services to help prevent unexpected breakdowns, reduce operating costs, and keep your system running at peak efficiency all year long.

Our maintenance plans are designed to protect your investment, minimize downtime, and ensure consistent comfort for employees, tenants, and customers throughout Lutz, Tampa, Land O’ Lakes, Wesley Chapel, and surrounding areas.

Our rooftop unit maintenance includes:

    • Full system inspections to catch issues early before they lead to costly repairs
    • Filter replacements to maintain airflow and indoor air quality
    • Coil cleaning to improve energy efficiency and cooling performance
    • Refrigerant checks and adjustments to ensure proper system operation
    • Electrical testing to prevent component failure and system shutdowns
    • Belt and fan inspections to keep air moving smoothly and quietly

With routine service from Dymond Heating & Cooling, you can improve reliability, extend equipment life, and avoid surprise repair bills—keeping your business comfortable and your HVAC system in top shape.

If you'd like to schedule rooftop HVAC services please give us a call (813) 758-1099 or fill out our online estimate request form and we'll get right back to you.

Rooftop Unit Repairs

When your rooftop HVAC unit stops working properly, it can affect your entire building—making it uncomfortable for employees, customers, or tenants. At Dymond Heating & Cooling, we provide fast, reliable rooftop unit repairs for commercial properties across Lutz, Tampa, Land O’ Lakes, Wesley Chapel, and nearby areas.

Our experienced technicians are trained to diagnose and repair all major RTU brands and configurations. Whether your system is making unusual noises, not cooling evenly, or simply won’t turn on, we’ll identify the issue quickly and get your system back up and running.

Common rooftop unit problems we repair:

    • Electrical failures or blown capacitors
    • Compressor or fan motor issues
    • Refrigerant leaks or low levels
    • Damaged belts or clogged filters
    • Thermostat and control system malfunctions
    • Poor airflow or uneven cooling throughout the building

We understand that commercial downtime costs money, so we prioritize quick response times, honest diagnostics, and dependable repairs. If your RTU isn’t performing as it should, call Dymond Heating & Cooling—we’ll get your building comfortable again, fast.

If you'd like to schedule rooftop HVAC services please give us a call (813) 758-1099 or fill out our online estimate request form and we'll get right back to you.

Rooftop Unit Replacements & Upgrades

If your rooftop HVAC unit is aging, inefficient, or no longer meeting the demands of your building, it may be time for a replacement or system upgrade. At Dymond Heating & Cooling, we specialize in commercial rooftop unit replacements and retrofits for businesses across Lutz, Tampa, Land O’ Lakes, Wesley Chapel, and surrounding areas.

Our team will assess your current system, identify performance or efficiency issues, and recommend a modern, energy-efficient solution that fits your building’s size, usage, and budget.

Signs it’s time to replace your rooftop unit:

    • Rising energy bills despite regular maintenance
    • Frequent repairs or inconsistent performance
    • Equipment is 10–15+ years old
    • Outdated or oversized system affecting comfort
    • Poor airflow, humidity issues, or temperature swings
    • Your current unit uses phased-out refrigerants (like R-22)

We install high-efficiency RTUs from trusted manufacturers and ensure every replacement meets local code, ventilation needs, and long-term performance expectations. Whether you’re upgrading for energy savings, compliance, or improved comfort, we make the process seamless from start to finish.

If you'd like to schedule rooftop HVAC services please give us a call (813) 758-1099 or fill out our online estimate request form and we'll get right back to you.

Why Choose Dymond Heating & Cooling for Your Commercial Rooftop HVAC Services?

Since 2008, Dymond Heating & Cooling has been West Central Florida’s trusted choice for honest, dependable air conditioning service. As a locally owned small business—not a faceless franchise—you’ll always know who’s showing up at your door. We don’t believe in high-pressure sales tactics, just expert advice and quality work you can count on.

Every job is backed by our unmatched customer guarantees:

    • Cleaner Than We Found It Assurance
    • No Lemon Law Protection
    • Fix It or Hotel Policy
    • 100% Satisfaction Guarantee
    • Upfront Pricing Pledge
    • Priority Service Agreement (includes first-year Dymond Club Membership)
    • View The Details Of Our Customer Guarantees

Choose Dymond and experience personalized service, clear communication, and the peace of mind that comes with doing business the right way.

If you'd like to schedule an estimate for your cooling services please give us a call (813) 758-1099 or fill out our online estimate request form and we'll get right back to you.

Rooftop HVAC Services FAQ

A rooftop unit (RTU) is a self-contained heating and cooling system designed for commercial buildings. These units are typically installed on the roof, saving interior space while providing efficient climate control for businesses, warehouses, offices, restaurants, and retail stores.

We recommend biannual maintenance—once in the spring for cooling and once in the fall for heating. Regular maintenance helps prevent breakdowns, improve efficiency, and extend the lifespan of your RTU. Businesses with high HVAC usage may require more frequent servicing.

Common signs that your RTU may need repairs include:

  • Uneven heating or cooling throughout the building
  • Unusual noises like banging, rattling, or squealing
  • Weak airflow or inconsistent temperatures
  • Sudden spikes in energy bills
  • Foul odors or poor indoor air quality
  • System short cycling (frequent turning on and off)

If you notice any of these issues, contact Dymond Heating & Cooling for fast and reliable RTU repairs.

Consider replacing your RTU if:

  • Your unit is 15 years or older and struggling to keep up
  • Repair costs are adding up and becoming more frequent
  • Energy bills are rising due to an outdated, inefficient system
  • The unit is not meeting your building’s heating or cooling needs
  • You want to upgrade to a more energy-efficient and environmentally friendly model

We offer expert rooftop unit replacements to help you save money and improve comfort in your commercial space.

We service, repair, and install all major RTU brands, including RUUD, Trane, Carrier, Lennox, York, Rheem, American Standard, Bryant, Goodman, Daikin, and more.

Most rooftop unit replacements can be completed within a single day, depending on the unit size and complexity of the installation. We work efficiently to minimize downtime and disruptions to your business.

To optimize your RTU’s efficiency, we recommend:

  • Regular maintenance and filter changes
  • Upgrading to a high-efficiency RTU model
  • Installing a programmable or smart thermostat
  • Sealing ductwork to prevent air leaks
    Upgrading insulation and ventilation systems

Yes! We provide customized maintenance plans to keep your RTU running efficiently year-round. Regular tune-ups help reduce energy costs, prevent breakdowns, and extend the life of your HVAC system.

Do you have questions about commercial rooftop HVAC systems that weren't answered here?  Please give us a call (813) 758-1099 or fill out our online estimate request form and we'll get right back to you.

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TESTIMONIALS

Daniel S.
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Daniel S.
May 8, 2025

We scheduled estimates with a bunch of AC companies and while others were basically in and out with their quick sales pitch and quote, Dymond’s rep (Adam) went above and beyond to diagnose our problem and talk through our options, explained all the pros and cons, and was super knowledgeable and thorough. Highly recommend Adam.

Basil Rodriguez
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Basil Rodriguez
May 8, 2025

Adam was very knowledgeable in troubleshooting and helping us decide what way to go with our 25 year old AC. Would recommend Dymond Heating and Cooling for anyone looking for help with their ac unit......2nd review- Everything was installed in a timely manner and is working flawlessly! I am recommending them to my in-laws for their home AC needs..... Thanks again to Dymond AC! 3rd review What can I say, AWESOME!... Adam again to the rescue, getting over here way before the appointment time window. Nothing major, just needed to blow out the drain pipe. I also did that.... He just did it better!

Stacey T
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Stacey T
May 8, 2025

Excellent service from start to finish! Highly recommend Dymond H&C! You all are great!

Marc Noble
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Marc Noble
April 24, 2025

Adam has done the last couple of regular maintenance visits and has been great! He is very thorough and explains all of our needs in great detail. Thanks Adam and the rest of the Dymond team!

ed moran
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ed moran
April 21, 2025

Very professional, great service and very knowledgeable

Peter Eidenberg
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Peter Eidenberg
April 18, 2025

Tyson G of Dymond Heating and Cooling has truly out done himself again . Each time Tyson shows up to our house to take care of our A.C. units, his professionalism is the first thing I take notice to each and every time . He is is very thorough with his evaluation of any and all recommendations .He is very careful and always cleans up when he is done with the job . I will also say this young man always has a smile on his face . He alone is my recommendation for using Dymond Heating and Cooling. Thank you Tyson Pete Eidenberg