

4.8 Stars 700 reviews
Lake Mary’s Favorite Duct Repair Services
Breathe freely with duct repair services from the experts at Filterbuy HVAC Solutions.
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SERVING Lake Mary, FL
The Best in Residential Air Duct Repair
Filterbuy HVAC Solutions specializes in repairing and replacing flex, fiberglass, and metal air ducts to ensure proper airflow and efficiency.
Hidden leaks can reduce airflow, making your AC work harder and increasing energy bills. Repairing damaged ducts helps lower costs, prevent breakdowns, and improve overall comfort.

AC Installation
When it comes to your comfort and energy bills, cooling systems have the biggest impact. We are experts in matching high-efficiency, reliable, and affordable AC solutions to your home, region, and preferences. That’s what makes us Filterbuy HVAC Solutions.

AC Repairs
Air Conditioners only break down when you need them, which is why we respond quickly so you can be cool and comfortable in your home. Depend on Filterbuy HVAC Solutions for an honest assessment of your repair job.

Yearly AC Tune-Up
Give your AC equipment the check-up it deserves! Regular maintenance will help ensure small issues don’t become big ones.

HVAC Care Plan
Our premium maintenance contract makes sure that all components of your HVAC system receive preventative maintenance on schedule to avoid wallet-busting problems.

Duct Repairs
If your duct’s structural integrity has been compromised (dislodged, punctured, crushed) it will need to be repaired, replaced, and resealed.

Duct Cleaning
Duct cleaning removes years of dust and debris to improve indoor air quality and address allergic reactions.

Duct Sealant
A non-toxic, water-based formula that seals all holes in your air ducts, so cool air is not wasted.

UV Light Installation
Create the healthiest indoor air quality by installing Filterbuy’s Germicidal UV Light. Kill microscopic pollutants, bacteria, and odor 24 hours a day.

Ionizer
Ionizers are a new technology that targets pollutants down to .01 microns in size. Think virus, mold spore, VOCs and more.

Attic Insulation
Low levels of attic insulation will make your AC unit work harder to keep your rooms cool, because heat will transfer through your ceiling. Maximize the energy efficiency of your home with proper attic insulation for south Florida.

Dryer Vent Cleaning
Cleaning dryer vents requires experience and the right tools. Once on site, your Filterbuy HVAC Solutions specialist will inspect the severity of lint build up. Our powerful vacuum & brush technique will guarantee the removal of hard to reach compacted lint.
OFFERING ALL MAJOR BRANDS YOU TRUST















AND MORE…
What to Expect
At Filterbuy HVAC Solutions, we provide expert ductwork repair to restore proper airflow, improve energy efficiency, and enhance indoor comfort. Our specialists thoroughly inspect your duct system for leaks, damage, and disconnections, ensuring every repair reduces strain on your A/C and lowers energy costs.
After repairs, we test the system to confirm balanced airflow and complete leak elimination. With high-quality materials and expert service, we help prevent costly A/C breakdowns and extend the life of your HVAC system.
- Comprehensive Duct Inspection
- Leak & Damage Detection
- Precision Sealing & Repairs
- Improved Airflow & Efficiency
- Reduced Energy Waste
- Lower Utility Bills
- Prevention of A/C Overwork
- Enhanced Indoor Comfort



Introducing the Best HVAC Air Duct Repair Service Company in the Greater Lake Mary Area
ZIP Codes Covered
32746, 32795, 32799
Seasonal Comfort at Unbeatable Prices
Explore Our Lake Mary HVAC Specials


Get Comprehensive A/C Maintenance for only $1 a Month
Stop worrying about your A/C – let us do that for you. See for yourself the difference being a Care Club member will make without any obligations or strings.
- Two Annual Tune Ups
- Drainline Flushes
- Free Emergency Call
- Condenser Coil Cleaning


There’s Clean, And There’s UV Clean.
Labor and parts included! Create the cleanest indoor air and live the healthiest life possible with a antimicrobial UV light system. Working in the background, your UV light emits a sterilizing level of UV radiation to neutralize harmful contaminants that are too small to be captured by a filter — like bacteria, viruses, mold spores, and other too small to see contaminants.
- Reduce Risk of Illness & Disease
- Soothe Allergy & Asthma Symptoms
- Freshen Your Space
- Extended HVAC Lifespan
SUBMIT THE FORM BELOW TO SAVE BIG!
WHAT YOU GET
YOU DESERVE THE BEST FOR YOUR AIR DUCT REPAIR SERVICES
Once on-site, your Filterbuy HVAC Solutions technician will assess your ductwork, review the repair plan, and confirm all project details.
After completing the repairs, we test for leaks and airflow efficiency to ensure your system is sealed properly, improving energy efficiency and overall home comfort.

Free Quotes
Get pricing quickly with a free estimate.

Interest-Free Financing
Special financing is available for new AC installations.

Flexible Appointments
Your time is valuable, and we make sure you have appointment options that fit your busy schedule.

Licensed Technicians
Our technicians will exceed your expectations with expert service completed on-time and to code.

Honest Warranty
1y labor warranty comes standard with all installs - but extended labor warranties are available.

24-Hour Customer Service
We’re available when you need help. 24 hours a day, 7 days a week.
HOW IT WORKS
Our Simple, Hassle-Free Air Duct Repair Process
1
Inspection & Assessment
Our technician evaluates your ductwork for leaks, damage, and airflow issues.
2
Identify & Seal Leaks
We locate problem areas and seal or repair damaged ducts.
3
Airflow Optimization
Adjustments are made to ensure even airflow and system efficiency.

Final Testing & Verification
We test the system to confirm improved performance and comfort.
AVAILABLE TAX CREDIT
New A/C systems that meet Energy Star requirements can become more affordable by qualifying for tax credits and other incentives.
Federal Tax Credit
Qualifying A/C systems receive
of the project cost, up to $600.
Qualifying heat pump systems receive
of the installation cost, up to $2,000.

A Guide For Lake Mary Homeowners
Explore our interactive presentation to learn about air duct repair.

Air Duct Repair FAQs
Everything You Need to Know in Lake Mary
How long will a typical repair visit take?
Most single-system homes need two to four hours; severe damage adds time.
Is Aeroseal safe?
Yes. It’s a water-based, EPA-registered sealant that stays inside the ducts and is rated safe for occupied homes.
Do I need new insulation after repairs?
Only if the existing wrap is wet, torn, or missing. Your technician will flag any sections that need fresh insulation.
Will repaired ducts really lower my bill?
Sealing major leaks often cuts cooling costs by 10 – 20 percent because the AC no longer runs overtime.
Can I stay home during repair?
Absolutely. Repairs happen in the attic or crawl space; living areas remain clean.
How often should I have my ductwork checked in Lake Mary?
Once a year is enough for most homes. Book an inspection sooner if you remodel, notice uneven room temperatures, or see dust collecting quickly on vents.
Can sealing ducts help lower indoor humidity?
Yes. Closing gaps stops muggy attic air from being pulled into the return side, which helps your air-conditioner remove moisture more effectively.
What materials do technicians use to seal leaks?
Pros rely on UL-181 foil tape, mastic paste, and—when leaks are hidden—Aeroseal “smart-glue” sprayed through the pressurised ducts.
Will duct repairs disturb my attic insulation?
No. Technicians lift only what’s needed to reach joints, then reset or replace the insulation they moved.
Is financing available for larger repairs?
Filterbuy HVAC Solutions offers interest-free financing on qualifying projects, so you can spread the cost over manageable payments.
Homeowner’s Guide
Introducing the Best HVAC Air Duct Repair Service Company in the Greater Lake Mary Area, FL
Filterbuy HVAC Solutions: Trusted HVAC Air Duct Repair Services in Lake Mary, FL
Airtight ducts keep cooled air in and Lake Mary’s sticky air out. When joints loosen or flex lines tear, cool air spills into the attic, dust slips back indoors, and the air-conditioner runs longer than it should. Professional repairs seal those gaps, restore steady airflow, and keep power bills under control.
Key Takeaways
- Lake Mary’s high humidity loosens duct joints—inspect once a year.
- Supply or return leaks confuse smart thermostats and waste energy.
- HVAC duct repair cost Lake Mary: about $200 – $800 for most homes.
- Sealing leaks recovers up to 20 percent of lost HVAC energy.
- Filterbuy offers certified techs, clear prices, and multiple repair options.
Lake Mary’s Weather is Tough on Ductwork
Lake Mary sits just north of Orlando, bordered by several small lakes. Summer afternoons reach the low 90 °F, and average relative humidity tops 79 percent in September—enough moisture to make metal ducts sweat and tape lose its grip. Thunder-storms then stir up pollen and attic dust that slip through loose returns, so an annual duct inspection is smart.
How Duct Leaks Confuse Smart Thermostats
Smart thermostats sense room temperature and cycle the AC to match. When supply leaks, dump cool air into the attic, the thermostat thinks the house is still warm, so the unit runs longer. Return leaks pull hot attic air into the system, making the thermostat shut the AC off early. Either way, comfort suffers and energy use climbs until the ductwork is sealed.
Typical HVAC Duct Repair Cost in Lake Mary
According to HomeAdvisor’s 2025 duct-cleaning cost guide, once a pro discovers damage, typical repair prices break down like this:
- Small repairs or short-run replacements: about $200 – $800
- Fixing a single hard-to-reach leak: $220 – $1,600, depending on access
- Air handler replacement (worst-case): up to $5,600
Energy Savings You Can See on the Next Bill
ENERGY STAR says leaky ducts can waste up to 20 percent of heating-and-cooling energy, which sealing and insulating can recover. A U.S. Department of Energy Building America case study in Raleigh apartments used spray sealant plus hand mastic to cut duct leakage by about 90 percent and projected roughly 20 percent HVAC energy savings per unit. When Lake Mary ducts get the same repair treatment, more cool air reaches the rooms, the thermostat is satisfied sooner, and the AC cycles off faster, lower bills, longer equipment life.
Cleaner Air, Fewer Allergy Flares
Return-side gaps act like straws, pulling dusty attic air—pollen, mold spores, insulation fibres, even fumes—into the system. Sealing those leaks keeps pollutants out and indoor air cleaner. ENERGY STAR also warns that leaky ductwork can draw carbon-monoxide exhaust from gas appliances back into living spaces, so sealing adds a safety margin as well.
Why Choose Filterbuy HVAC Solutions?
Filterbuy HVAC Solutions is the HVAC air duct repair company Lake Mary homeowners trust because we match the repair method to the problem:
- Aeroseal duct sealing sprays safe sealant through pressurized ducts to close hidden holes.
- Manual patch & repair adds mastic, foil tape, and spray adhesive to visible joints, trunks, and plenums.
- Antimicrobial duct coating reinforces porous surfaces after cleaning to stop future mold.
- Partial replacements swap out crushed or pest-damaged sections without upselling a full system.
You also get free estimates, guaranteed pricing, interest-free financing on larger jobs, two years of free maintenance, and 24/7 scheduling support.
Schedule a Repair Now
Stop cooling the attic. Call Filterbuy HVAC Solutions or book online for a free video inspection and a fixed, upfront quote on HVAC duct repair services Lake Mary—fast booking, clear costs, cooler rooms.
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