Service or Diagnostic Call
- System inspection
- Written findings before any repair
- Licensed technicians
- Peace of mind
Open 24/7 · Same-day service
Licensed HVAC, plumbing and electrical · CAC1822780 · CFC1434447 · EC13016412
4.9 ★ 1,000+ Reviews
Licensed · HVAC CAC1822780 · Plumbing CFC1434447 · Electrical EC13016412
Dunedin, FL
Dunedin is an incorporated Pinellas city north of Clearwater. Downtown blocks, coastal streets and inland neighborhoods share one city permit path.
What do you need help with?
Neighborhoods · Downtown, Scottish Highlands, Marina area
Our Services
When a ranch gets a new heat pump, the water heater and the breaker box are often next on the list. You do not have to call three different companies when one team covers those jobs.

$39 service call
(regularly $99)
$39 service call
(regularly $99)
$39 service call
(regularly $99)
Local homes

Tighter footprints than inland lots leave little room for a full duct redesign. Original panels and attic handlers from the mid-1970s median era struggle with humidity control and modern loads.

Block ranches here keep aging flex duct and full services. Heat pump swaps and water heater change-outs are when we inspect returns and breaker space.

Salt and wind reach outdoor gear that inland Highlands lots see less of. Coatings and pad placement get checked before a condenser is quoted near the water.

We inspect the air handler and panel rather than assuming their age from the home. Adding an EV charger or a second AC system may require an electrical load calculation.
Warning signs
Florida heat, humidity and salt air are hard on a home. If you notice any of these, give us a call.
Not sure what you're seeing? Call us and we'll help you figure out the next step.
Services
Many mid-1970s ranches still run the original panel and attic air handler.
Short cycling and weak cooling in Dunedin homes. Pool equipment and EV chargers affect electrical panel loads, not the AC cooling load.
Mechanical permits confirmed for your address, plus utility rebate paperwork when it applies.
Seasonal checkups for original attic air handlers in mid-1970s ranches, including coil and condensate drain cleaning.
Tank and tankless with the city plumbing permit when required.
Root intrusion and slow stacks in Dunedin Isles and downtown bungalows on city sewer.
Tracking down hidden supply leaks in 1970s ranch homes on city water before they stain floors or drywall.
100-amp and full panels that need room for heat pumps, EV chargers and standby generators.
Storm backup permitted through the City of Dunedin. Comfort Club members get 20% off generator repairs.
Warm outlets and GFCIs that keep tripping in mid-1970s ranches still running the original panel and wiring.
Special Offers
One offer per visit. Valid weekdays 8am-6pm.
After hours
No cooling, a burst pipe or sparks. After-hours service call $149, with a written price before any work.
It’s in Tampa Bay. We’re answeringAnswering now.
Turn off the system, shut the main water valve or switch off the breaker, and keep clear of wet or sparking areas.
No cooling, burst pipe, sparks or burning smell.
Safety first
Call 1-855-682-0402 any time, day or night. A real person tells you when we can get there.
Have the address and what you see ready.
Open 24/7 · $149 after hours
The technician finds the cause and gives you a written price before any repair.
Written price first, then the repair.
1-Year Workmanship Warranty
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FAQ
Find quick answers to the most common questions about our services.

We serve Dunedin and confirm the right permit office for your address. Many Dunedin mailing addresses use the City of Dunedin portal. Near the edges of the area, we still verify before we file.
Duke Energy Florida for most Dunedin accounts we see. Confirm from your bill.
We confirm the office for your address. Many Dunedin addresses use the City of Dunedin Citizen Self Service portal.
Often. Coastal pads see more corrosion than inland Scottish Highlands lots. We talk coatings and placement before the condenser ships.
Ask us which utility rebates apply to your Dunedin home. We check current programs against the utility that bills your meter.
Yes. Tank and tankless on city water, with the City of Dunedin plumbing permit when the job needs one.
Yes. Downtown and inland neighborhoods are on our Pinellas board. Association rules still get cleared when exterior equipment needs review.
Yes. North Pinellas city HVAC, plumbing and electrical calls are answered day and night. Call 1-855-682-0402. After-hours diagnostic is $149.
Our work includes a 1-year workmanship warranty. Equipment carries the manufacturer's warranty, and extended warranty options are available.
Yes. We permit standby installs through the City of Dunedin. Comfort Club members get 20% off generator repairs.
Same-day service and 24/7 HVAC, plumbing and electrical calls cover Dunedin. Mainland jobs sit on Alternate U.S. 19; coastal calls use Causeway Boulevard toward Honeymoon Island.
Yes. Comfort Club members get 20% off generator repairs. Generator installations are quoted separately.
Testimonials
Real Google reviews from our customers, shown word for word.

John is fantastic. He has handled the HVAC at my place for over a year now - helps with maintenance and repairs. He is very kind, timely and fast! Always reasonable with solutions. I feel at peace knowing he can help if I have any issue.
This is why we love dealing with Smart for all our AC needs. First, it's because of our wonderful technician Johnny, who is the most reliable, honest, nicest technician we have ever had!! He is always on time and very clean and courteous, and smart! Every time I call, you are always able to fit us in, at our convenience, and you have the best service plan in the industry! Thank you so much!! Pat and Steven
We had our entire HVAC system replaced last year. From the handler, to the ductwork and insulation. They were great. They came out fast and got the work done in 2 days! We just had our unit go out and John was out same day. He was extremely helpful and honest. We weren't sure why the system went down but he also provided tips to help make sure we are using the system optimally which can help prevent odd system failures. I can't recommend them enough!
Our a/c went out in the middle of summer so we were trying to find someone who could come out as soon as possible. They responded quickly and could've had someone out the same night, had it not started storming, but they were still able to get someone out the following morning. Ayman was great and solved the problem quickly. He let us know of things to look out for in the future with our 10yr old unit but didn't try to oversell us or pressure us into unnecessary work. We would definitely use them again!
SMART HEATING & COOLING is a top choice for your air conditioning needs. I contacted them on Tuesday about my unit not cooling. On Wednesday, Ayman, the service representative, arrived on time, diagnosed the issue in detail, and offered an option to repair or replace the unit. I decided to replace it. On Thursday, two technicians arrived promptly and installed the new unit in 5 1/2 hours, without taking a break. In my experience, no other company has performed as well as SMART HEATING & COOLING. I highly recommend them to anyone needing such services. THEY ARE 5 STARS ++++
Updated 8/2026: The first time they came out was for our upstairs a/c unit and this time we called them because our downstairs unit had stopped working. They answered on a Friday night and we were able to get something scheduled right away. Our tech this time was Spencer and he was also great and got us back up and running quickly. We've been very happy with the service both times and ended up signing up for the maintenance plan. Both times the techs have provided thorough explanations and taken pictures to show the work that needed to be done.
This is my second involvement with Smart Heating & Cooling, as prior, wonderfully smooth. The tech is really good, clean, neat and considerate. The gentleman sent was a Tech by the name Jared(please pardon if mispelled) was early which I love, very presentable and totally approachable and trustworthy. He identified the problem within minutes and was very professional in his delivery. One of the best customer experiences I have had with contractors, Smart Heating & Cooling, definately a SMART choice, HIGHLY RECOMMEND!
Smart Comfort Club
Every Comfort Club visit covers your HVAC, plumbing and electrical. Two whole-home visits a year, 20% off repairs and no diagnostic fee.
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