St. Augustine

HVAC Company in St. Augustine

Name: Del-Air Heating, Air Conditioning & Refrigeration, LLC
Address: 1000 Business Center Dr, Suite 3050, Lake Mary, FL, 32746
Telephone: (844) 909-3003

Full-System HVAC Service for Historic Homes & Coastal Construction

Since 1983, Del-Air Heating, Air Conditioning & Refrigeration, LLC has served Florida homeowners with air conditioning, heating, and home comfort solutions. We’re licensed, bonded, and insured, and our background-checked technicians bring that same dependable service to St. Augustine, whether you’re in a historic downtown home or a newer build near the coast. We also offer service in Spanish.

Ready to schedule HVAC service in St. Augustine? Call us at (844) 909-3003 or use the contact form on this page to get started.

Why St. Augustine Homeowners Call Del-Air Heating, Air Conditioning & Refrigeration, LLC

When your AC goes down on a humid August afternoon, you need someone who can actually show up. We offer same-day service for urgent issues and 24/7 emergency support, so you’re not waiting days for relief. Our technicians arrive in fully stocked service vehicles ready to diagnose and resolve most problems on the spot.

We service all HVAC brands and models, so you won’t hear us push a replacement just because your system isn’t one we prefer. Our approach is to look at the full picture, find the root cause, and give you honest options. With 8 Florida locations and a fleet of over 400 service trucks, we have the scale to respond quickly and consistently across the St. Augustine area.

Beyond HVAC, we handle plumbing and electrical needs as one team, which means fewer vendors to coordinate and one point of contact for your home.

HVAC Services in St. Augustine

St. Augustine’s humid subtropical climate means cooling systems run under near-constant moisture load year-round, not just during peak summer heat. That steady strain shows up as reduced efficiency, frozen coils, and premature wear when systems aren’t properly maintained. We provide AC repair, AC installation, and heating maintenance for homeowners across the area, and our full-system diagnostic approach works equally well in the compact layouts of historic downtown homes and the larger footprints of newer coastal construction.

Indoor air quality is a real concern here. We offer air purifiers, air scrubbers, and whole-home dehumidification solutions that address the moisture and airborne contaminants that come with coastal living. If your home feels stuffy or humid even when the AC is running, those systems are worth a conversation.

Get a Free Estimate on a New HVAC System

We offer free estimates on new systems, financing options, and discounts for military members, veterans, and seniors. Cost doesn’t have to be the reason you put off a repair or replacement.

Call Del-Air Heating, Air Conditioning & Refrigeration, LLC at (844) 909-3003 to schedule service or request your free estimate. Our team is ready to help.

How St. Augustine’s Climate Affects Your HVAC System

St. Augustine sits close to the Atlantic, and that proximity shapes what your HVAC system deals with every day. Summer highs average around 90°F, and with no true dry season, humidity stays elevated well into fall. Your cooling system isn’t just fighting heat; it’s managing moisture load through most of the year.

Coastal air also carries salt, which accelerates corrosion on outdoor equipment, including condenser coils, electrical contacts, and cabinet surfaces. Regular maintenance matters more here than it does in drier inland climates, and catching corrosion or refrigerant loss early can help keep repair costs manageable and support equipment life.

For homes where humidity control is a persistent challenge, whole-home dehumidification works alongside your air conditioner to maintain comfortable indoor conditions without overworking the system.

HVAC Maintenance Plans for St. Augustine Homeowners

Routine maintenance is the most direct way to avoid emergency repairs. Our Maintenance Agreement Plan includes scheduled inspections, priority scheduling, and service discounts that add up over time. For homeowners who want broader long-term coverage, our Legacy Plan provides predictable, ongoing coverage for your home comfort systems. When you call, ask us which plan fits your home and equipment.

Permits & Licensing for HVAC Work in St. Augustine

Florida’s building code requires a permit before installing, altering, or replacing mechanical systems like HVAC equipment. St. Johns County requires contractors to be licensed and registered with the county before a permit can be issued.

For work inside St. Augustine city limits, the City runs its own building permit process. Properties in historically sensitive areas may also be subject to review by the Historic Architectural Review Board. It’s worth confirming the requirements that apply to your specific address before any work begins. Del-Air Heating, Air Conditioning & Refrigeration, LLC is licensed, bonded, and insured to work in Florida, so you can ask us directly about licensing as it relates to your project.

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Thousands of Homes. One Trusted Name.

See Why Homeowners Across Florida Trust Del-Air for Honest Service and Lasting Comfort.

Thank You So Much!
“Our experiences with Del-Air were fantastic. Never have I felt better taken care of, as if it were their own home. They did a great job, and I renewed my membership without a second thought.”

- Michael V.
What A Great Team!
“Del-Air was an absolute pleasure to work with! Their experience & expertise were evident as they took every necessary step to ensure we located and resolved our issues at the most affordable cost possible. Thank you Del-Air!”

- Kyle N.
Wonderful Service
“My recent visit from Del-Air was a refreshing experience. Their expertise, competence, and respect for our home were evident throughout the visit. They were also very diligent and professional, and even adjusted my AC temperature back to my preference.”

- Jordan F.
These Guys Are Amazing!
“They are great! Super knowledgeable and friendly. They explained everything in detail. They were patient with all of my many questions. I highly recommend Del-Air. They love their job, and it shows in the excellent service they provide.”

- Charm B.
They are the Best!
“Great service from Del-Air. On time, provided updates for the process, and was very pleasant to talk with. They made several suggestions for system improvements, but no hard sell. Not my first call to Del-Air and definitely won't be my last.”

- Jim A.
Just Wow!
“Del-Air was simply AMAZING. They took the time to thoroughly explain every detail regarding why my unit stopped cooling. I am so grateful to have had them as my HVAC service provider. Look no further if you need any type of AC, electrical, or plumbing help”

- Daly R.
Thank You, Del-Air!
“I just have AC/Heat wiring replaced and run to the attic by DelAir AC technician Roberto Lyva. He did a great job and I am very with the quality of work he did.”

- Regino B.
Amazing Team & Amazing Service
“We have been using Del Air for our AC needs and have been very happy with the service we have received. So when we needed some electrical work done, it made sense to call a company that we know. We were not disappointed. Best decision we could have made.”

- Doug P.
No One Better in Florida!
“I've been using Del-Air since I purchased my first home. From the office staff to the technicians, they have all been professional & knowledgeable. They answer all of my questions and teach me tips & tricks to keep my systems running smoothly.”

- John N.

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Contact Us Today

At Del-Air Heating, Air Conditioning & Refrigeration, LLC, we're always ready to take your call! Give us a call at (844) 909-3003 or fill out the form below to contact one of our team members.

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Same-Day Service
When you need help fast, Del-Air delivers with prompt, professional same-day appointments.
24/7 Emergency Support
Comfort emergencies don’t wait — and neither do we. Call anytime, day or night.
We Service All Brands & Models
No matter what you have, our skilled technicians can handle it with ease.
Fully Licensed, Bonded & Insured
Your home is in expert hands with our certified, trusted professionals.
Free Estimates on New Systems
Know your options upfront with clear, no-obligation estimates.
Discounts for Military, Veterans & Seniors
A small way we say thank you to those who’ve served and supported our communities.