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Furnace Repair & Replacement Across Volusia, Flagler & Putnam County, FL
Heating Repair & Furnace Installation Company in Northeast Florida
Florida winters are short, but a cold snap with no heat is still miserable, especially overnight. Whether your furnace won’t turn on, blows cold air, or makes a noise that worries you, SIMS repairs and replaces heating systems for homes and light commercial properties across Volusia, Flagler, and Putnam County. Most homes in our area heat with a heat pump rather than a standalone furnace, and we work on both.
LET’S GET YOUR COMFORT BACK
When Your Heat Won't Come On
A house that won’t heat on a 40-degree Florida night is uncomfortable fast, especially for kids or older family members. We check the system, explain what’s wrong in plain language, and tell you honestly whether a repair or a new unit makes more sense.
We serve Palm Coast, Daytona Beach, DeLand, Deltona, Ormond Beach, and communities throughout Flagler, Volusia, and Putnam County, for both furnace and general heating repair calls.
Because most homes here rely on a heat pump rather than a standalone furnace, heating problems in Northeast Florida often show up differently than they would further north. We diagnose based on how your specific system actually works, not a generic heating checklist built for a colder climate.
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Signs Your Furnace Needs Attention
Furnace Won't Turn On
Could be a thermostat issue, a tripped safety switch, or an electrical problem. We check the simple causes first before assuming the worst, since a surprising number of no-heat calls turn out to be something minor.
Heat Won't Come On In the House
Sometimes it’s the furnace itself, sometimes it’s a heat pump stuck in the wrong mode. Either way, we diagnose the actual cause instead of replacing parts on a guess.
Furnace Blowing Cold Air
This can point to a pilot or ignition issue on gas systems, or a control problem on electric units. We test the specific components rather than assuming which one failed.
One Room Won't Heat
Often, a ductwork or airflow issue rather than the furnace itself. We check both before recommending a fix, since replacing the furnace won’t help if the real problem is a duct run.
Furnace Making Loud Noise
Banging, rattling, or squealing usually means a mechanical part is wearing out. Worth a call before it fails, especially on the coldest night of the year.
Emergency Heat Setting Stuck On
If your system is stuck running backup emergency heat, it’s working much harder, and costing more than it should, and it usually points to a heat pump issue rather than the backup heat itself.
Types of Heating Repair We Handle
Electric Furnace Repair
Common in Florida homes. We troubleshoot heating elements, sequencers, and control boards.
Furnace Replacement & Installation
When a repair no longer makes sense, we install a properly sized replacement furnace.
Ignition & Control Repairs
Faulty ignition components are a common reason a furnace won’t start reliably.
Ductwork-Related Heating Issues
Sometimes the furnace is fine, and the ducts are the problem. We check both, so you’re not paying to fix the wrong thing.
Benefits of Professional Furnace Service
A Warm House When It Matters
Even a short Florida cold snap is uncomfortable without heat. Fast, honest diagnosis gets your system running again instead of leaving you guessing overnight.
Avoid a Bigger Repair Later
A small ignition or control issue left alone can turn into a system that won’t run at all. Catching it early usually costs less and takes less time.
A Furnace Sized for Your Home
If you do need a replacement, ENERGY STAR qualified furnaces run about 15 percent more efficiently than a conventional model, which shows up on your bill every winter.
Straight Talk, No Pressure
We would rather earn your trust today and replace your furnace when you truly need one than sell you something you do not, even if that means a smaller invoice today.
A Guarantee on the Work
Every furnace repair and installation is backed by our one-year labor guarantee and 100% satisfaction guarantee, so you’re covered if something isn’t right.
What Furnace Service Includes
A furnace repair call includes a full inspection of ignition, controls, and safety switches, a clear explanation of what’s actually wrong, and a price before any work begins.
If replacement makes more sense, we size the new unit to your home, install it properly, and register it with the manufacturer so you get the full warranty term it’s eligible for. Heating maintenance and seasonal tune-ups are handled through our Maintenance & Tune-Ups plan, so this page stays focused on repair and replacement rather than trying to cover everything at once.
Related Services
Heat Pumps, since most Florida homes heat with a heat pump.
24/7 Emergency HVAC, for no heat on a cold night.
Maintenance & Tune-Ups, for seasonal heating tune-ups.
Ductwork Installation & Repair, if one room never heats evenly.
From Emergency Repairs to Full System Installs
Whatever your system is doing, tell us. We will find the cause, explain it in plain language, and fix it right.
AC Installation & Replacement Services
New systems from trusted brands, most installed in a single day.
Furnace Repair & Replacement Solutions
Keeps your home warm when Florida cold snaps hit.
Heat Pumps
Repair, installation, and replacement for systems most NE Florida homes rely on year-round.
Ductless Mini-Splits
Single-room comfort for garages, lanais, and additions without new ductwork.
Maintenance & Tune-Ups
$89 tune-up with a 27-point inspection catches problems before breakdowns.
Indoor Air Quality
Purifiers, UV lights, filtration, and dehumidifiers for humid Florida homes.
Light Commercial HVAC
Commercial equipment experience from grocery stores to apartment complexes.
WHY NORTHEAST FLORIDA CHOOSES SIMS
Whatever your system is doing, tell us. We will find the cause, explain it in plain language, and fix it right.
Repair Before Replace
Fix or replace.
Talk to a Real Tech
24/7 HVAC support.
Aircraft-Level Precision
Detail-driven work, done right.
We Handle the Warranty
Warranties managed hassle-free.
50+ Years Experience
Decades of trusted expertise.
One-Day Installation
Quick setup, minimal disruption.
Satisfaction Guarantee
Your happiness, our promise.
LOCALLY OWNED & OPERATED
Local team. Local accountability.
Hear It From Your Neighbors
Highly recommend! Spencer quickly came out and diagnosed my problem and even went the extra step to look into warranty after the company that put the unit in would not look into anything for me. Very knowledgeable and fairly priced. I’ll contact them from here on out for all my AC needs!
- Ashton Cassidy
SIMS Heating and air installed a new unit for me last year. My A/C unit had quit and the well known carrier that i had bought the Carrier unit from wouldn’t even return my call, after being a customer for over 12 years. SIMS came through with excellent service and a great new unit.
- Robertson
My elderly mother’s 20 plus year old A/C unit decided to stop cooling. After calling some of the other A/C business, she was told there would be over a week wait. She gave SIMS a call and they had someone out that evening squeezing her in. Fantastic service and great people!
- HL Smith
If moving into a new home is not stressful enough, a finicky A/C unit added to the anxiety. Fortunately, Sims came to the rescue. Instead of the giving me the usual grunts and groans and quotes for a new unit, I got quick, efficient service that solved the problem right away.
- Mr. Bob
SIMS Heating and air installed a new unit for me last year. My A/C unit had quit and the well known carrier that i had bought the Carrier unit from wouldn’t even return my call, after being a customer for over 12 years. SIMS came through with excellent service and a great new unit.
- Sue Shamblen
Great experience. Fast reliable service. A/C system went down and the next day they were here to replace my system. Great pricing too. I have used them for A/C maintenance as well. Knowledgeable and friendly staff and on time. Lucky to find them.
- William B
Serving Homes From the St. Johns River to the Coast
SIMS serves homeowners in Flagler and Volusia counties, covering riverfront towns and coastal communities. Call us to check if we reach you.
Furnace Repair Questions
How much does furnace replacement cost in Florida?
It depends on the unit size and your home’s ductwork. We give you a written price before any work begins, no guessing and no surprise add-ons later.
Should I repair or replace my furnace?
It depends on the age of the unit, the repair cost, and how often it’s broken down. We’ll lay out both options honestly rather than defaulting to whichever one costs more.
Do you work on heat pumps too?
Yes. Most homes in our area heat with a heat pump rather than a standalone furnace, and we service both as a matter of course.
My furnace makes a loud noise. Is that an emergency?
Not always, but it’s worth a call soon. If it stops heating entirely on a cold night, that’s when to use our emergency service instead of waiting.
Do you service light commercial heating systems?
Yes, we handle heating repair and replacement for light commercial properties as well as homes, with the same diagnosis-first approach.
If you have questions, check our FAQs or give us a call. We’re here to help.