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Serving Jacksonville, St. Augustine & Palm Coast
St. Johns County

HVAC, Plumbing & Electrical Services in St. Johns County

HVAC, Plumbing & Electrical Services in St. Johns County

Serving Your Community Since 1983

At David Gray, our top priorities are your home comfort and safety. That's why we provide not one but three critical services to care for your home's essential functions. We employ highly rated technicians for HVAC, plumbing, and electrical services and are available 24/7 for emergency issues. There's no problem too complex for our team to solve.

Your search for a trusted local service company ends here. Give us a call today to address those lingering home maintenance issues. Call (904) 605-8190 or contact us online. 

David Gray Heating & Air Serves St. Johns County

Heating, ventilation, and air conditioning keep you comfortable inside your home all year round. Even in Florida, we need to maintain heating systems for those cool winter nights. It's tough to know when or if you have an issue with these systems until it's too late, at which time you're likely in for a costly repair. 

We're trusted HVAC experts, and you can look to us for heating and air conditioning services such as:

Repair & Maintenance

Furnace and air conditioner repairs seem to occur at the worst times. Even a well-maintained system may need some extra attention every so often, and if that happens, we're standing by to take care of the issue quickly.

Just like an oil change for your car, preventative maintenance for your air conditioning will help prevent frequent and higher-cost repairs. AC maintenance and tune-ups are highly recommended, which is why we provide an AC maintenance program to extend the life of your air conditioner.


If you're faced with the milestone of installing a new furnace or air conditioner, consult with David Gray to get the best solution and value for your home. We carry top brands and make sure you get the most appropriate ENERGY STARĀ® rating. In addition, we do ancillary installations like:

Duct Services

Florida home air conditioners work hard, and humidity levels can get high even indoors. These conditions can cause moisture buildup in your duct systems, so it's good to make duct services part of your home maintenance efforts. And because ductwork is one of those "out of sight, out of mind" things, it's hard to tell if other issues are occurring, such as damage or air leaks. 

Indoor Air Quality

Indoor air quality has both immediate and long-term effects on your health. If you have allergies, suffer from frequent colds, or other respiratory issues (or you want to prevent them!), you might consider IAQ services, such as:

  • Air filtration systems
  • UV lighting systems
  • Air scrubbers

David Gray is a top-rated HVAC service provider in St. Johns County and Jacksonville. Our team and technicians are trusted, reliable, and will keep you comfortable year-round. Call (904) 605-8190 or contact us online. 

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Our Reviews See What Our Customers Say

    "Will certainly use David Gray services again."

    Clearly explained what needed to be done and why. Worked efficiently and neatly. I’m very pleased.

    Jennifer W.
    "This review is well deserved. Thank you!"

    We are grateful to all the professionals who turned our frown upside down.

    Wes L.
    "The entire David Gray crew was simply awesome!"

    Thanks for doing such a thoughtful and precise job, we are very happy!

    Ryan M.
    "One of the best home service crews at David Gray!"

    They were organized, prepared, careful, thorough, meticulous, pleasant, and incredibly helpful.

    T. Prousis
    "I unequivocally recommend David Gray for any work you need done."

    From start to finish (estimates thru installation) if you use David Gray you will be completely satisfied and happy that you did.

    Cindy S.
    "They are reliable and knowledgeable!"

    Our technician Rowdy did a great job explaining ways to improve our system and was very helpful.

    Stephen B.
    "My husband & I are a very satisfied!"

    Outstanding service on our duct cleaning today from David Grey Heating & Air.

    Jackie G.
    "We were quite impressed with their thoroughness."

    They worked without distractions and cleaned when they completed their work.

    Fern M.

Water Heaters

Water heater issues cripple many vital functions of your home. The last thing you want is no hot water for any period. David Gray plumbers can repair, service, and install the following types of water heaters:

  • Tankless
  • Hybrid
  • Electric
  • Gas

Sewer Services

A home's sewer is the underground piping that connects your home's wastewater drainage to the city sewer line. Anytime wastewater is involved, you'll need a professional. David Gray sewer services include:

We use the latest and greatest technology and tools for our plumbing services including, sewer and drain video inspection and hydro jetting services.

Advanced Plumbing Services

Leaks under your foundation, sewage backup, and repiping are complex jobs requiring only professional expertise. David Gray pros can take care of these types of plumbing services, including:

David Gray Electrical Services in St. Johns County

Electrical issues can be scary. Rest assured, David Gray professionals will service your electrical needs as we do with all our services: with the utmost expertise, honesty, and upfront pricing. We provide 24/7 emergency electrical services, so you don't go without power for a moment longer than necessary. Likewise, standard electrical services that are tempting to DIY but, to ensure safety, should be done by professionals include:

We also provide backup generator services and installations along with a Generac Preventative Maintenance plan to keep the generator running optimally.

David Gray is your one-stop shop for caring for your home's most essential systems. HVAC, plumbing, and electrical are critical for your home's safety, comfort, and value. Save yourself the stress and confusion by working with one company, whether for an emergency or standard upkeep.

Get started with us today! Call (904) 605-8190 or contact us online. 

Contact David Gray

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  • Over 40 Years of Service
    Mr. Gray, native to Jacksonville, raised his family while continuing to grow his company. We have recently joined forces with Southern Home Services and are proud to offer the same family-focused service and attention to our customers.
  • Offering Maintenance Plans
    Take the guesswork out of servicing your home's major systems. We provide monthly appointment reminders, discounts, annual and biannual system tune-ups, and much more. Contact David Gray to join the Comfort Club today!
  • All-Encompassing Home Service
    We are proud to offer a full line of Electrical, Plumbing, and Heating & Air services. From ensuring your home's temperature stays ideal, to electrical home automation, to updating bathroom plumbing, our team has you covered!
  • Special Offers & Financing
    We provide seasonal promotions to fit your home's needs year-round, and partner with the finest financing providers in the business to ensure that you are able to stay comfortable without breaking the bank. Explore our incentives today!