Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
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AfterFast, Reliable Duct Sealing Across Southwest Ranches
Your AC runs hard eleven months a year in Southwest Ranches, and when your ducts leak, you’re paying to cool your attic, your crawl space, and the air outside your windows. Duct sealing in Southwest Ranches typically costs $450 – $1,200 for a whole-home seal, depending on how many air handlers you run and how far your ductwork sprawls across your property. We dispatch crews from our Miami office and cover the full Southwest Ranches area, including the large-lot estates along Griffin Road, the equestrian properties off Southwest 172nd Avenue, and the newer builds near Sheridan Street. Call (361) 326-5060 for a free written estimate.
Why Hollis Air Duct Cleaning Is Southwest Ranches’s Preferred Duct Sealing Company
We’ve been sealing ducts in Southwest Ranches since long before the town incorporated, and our Duct Sealing in Southwest Ranches crews know the local housing stock inside out. The custom-built homes on 1- to 5-acre lots here often have two or three air handlers with duct runs stretching 80 feet or more from the attic to the far end of the house. That length creates more joints, more flex-duct connections, and more opportunities for conditioned air to escape than you’ll find in a standard suburban subdivision.
Our technicians are background-checked, uniformed, and trained on The Garrison Code. They arrive inside the quoted window, price the job in writing before touching anything, and leave the site clean. Every duct sealing job carries our 365-Day Done Right Promise: if the seal fails or your energy bills don’t improve, we come back and make it right at no charge, including a free second visit.
Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues.
HVAC Duct Sealing in Southwest Ranches
HVAC Duct Sealing in Southwest Ranches means closing the gaps, disconnected joints, and deteriorated mastic in your ductwork so the air your compressor works hard to cool actually reaches your living spaces. Most Southwest Ranches homes lose 20 – 30% of conditioned air through leaks before it ever hits a register. With AC running nearly year-round in this subtropical climate, that’s a lot of wasted electricity and unnecessary wear on your equipment.
Our process starts with a pressure test to map exactly where your system bleeds air. We then seal accessible leaks with mastic compound and metal-backed tape rated for Florida humidity, not the cheap foil tape that peels off in six months. For buried or hard-to-reach duct sections, we apply aerosolized sealant through the Nikro negative-air system, which pressurizes the ducts and forces sealant particles to bond at leak points from the inside out.
When Your Ducts Need Sealing
Rooms that never cool evenly, dust blowing from registers even after cleaning, or energy bills that spike every summer are all signs your ducts are leaking. In Southwest Ranches, we also see well-water mineral scale and iron bacteria accelerating corrosion at duct joints, particularly in homes built before 2000 with original flex-duct systems.
What the Job Includes
We test, seal, and retest. The written price covers all accessible ductwork, register boots, and return plenums. If we find disconnected trunk lines or collapsed flex duct during the seal, we’ll show you the damage and quote repair separately before doing anything.
Duct Repair in Southwest Ranches
Duct Repair in Southwest Ranches addresses the physical damage that sealing alone cannot fix: collapsed flex duct from roof rats common to equestrian properties, corroded metal trunk lines in humid attics, and sections crushed by homeowners or contractors working in tight crawl spaces. Many Southwest Ranches homes from the 1980s and 1990s still run original flex-duct that has become brittle and torn at the connection points.
We replace damaged sections with new insulated flex duct or rigid metal where appropriate, reconnect trunk lines with proper mechanical fasteners, and rebuild corroded plenums. Every repair is sealed and pressure-tested before we leave. Our technicians carry Rotobrush rotary systems and Nikro negative-air equipment on every truck, so we can handle both the repair and any needed cleaning in one visit.
Rodent and Moisture Damage
Roof rats and squirrels are a persistent problem in Southwest Ranches’s rural lots, and they love the soft insulation around flex duct. We remove contaminated material, sanitize the area with Abatement Technologies HEPA containment, and install new duct with protective screening where needed.
Additions and Retrofit Ductwork
Many Southwest Ranches homes have been expanded over the years, with hobby barns converted to guest quarters or pool houses tied into the main AC system. These retrofits often use undersized duct or improper branch connections that starve the new space of airflow. We resize and reroute to match the load.
Trusted Brands We Service in Southwest Ranches
We stock parts and sealant products from Honeywell, Aprilaire, and Guardsman for Southwest Ranches customers, which means most repairs and sealing jobs finish in a single visit without waiting on shipped materials. Our trucks carry mastic rated for 200°F continuous exposure, metal-backed tape that won’t delaminate in attic heat, and replacement flex duct from Nikro’s commercial line. For whole-home aerosol sealing, we deploy the same Abatement Technologies equipment used in hospital and cleanroom applications. When you call (361) 326-5060, we can usually schedule within a few days and complete the work before your next utility bill cycle.
Common Duct Sealing Problems We See in Southwest Ranches Homes
- Long duct runs on multi-acre lots. Many Southwest Ranches homes have air handlers centrally located but bedrooms, offices, or guest wings 60 – 100 feet away. Every joint in that span is a potential leak point, and the pressure drop means the far rooms never cool properly.
- Iron bacteria and mineral corrosion from well water. Because Southwest Ranches sits on private wells, evaporator coils and nearby return plenums foul with rust-colored scale that eats through mastic and metal over time. We see this pattern constantly in homes near the equestrian districts off Southwest 160th Avenue, and virtually never in neighboring Weston’s municipal-water subdivisions.
- Original flex-duct from the 1980s and 1990s. The first generation of flex-duct insulation breaks down in Florida attics after 20 – 25 years. It becomes brittle, tears at the collar connections, and sheds fiberglass particles into the airflow.
- Humid attic conditions year-round. Southwest Ranches’s subtropical climate keeps attic moisture high even in winter. That humidity degrades duct tape adhesive, corrodes metal fittings, and encourages mold growth on organic dust inside the ductwork.
Pricing for Duct Sealing in Southwest Ranches, FL
A typical whole-home duct sealing in Southwest Ranches runs $450 – $1,200. Smaller single-system homes on the east side of town, near Griffin Road and the Broward County line, usually fall in the $450 – $650 range. Larger estates with two or three air handlers, multiple attic access points, and duct runs spanning 100 feet or more typically run $850 – $1,200. Duct repair, when needed, adds $200 – $500 per section depending on accessibility and material.
What moves the price: number of air handlers, total linear feet of ductwork, attic accessibility (some Southwest Ranches homes have scuttle holes rather than pull-down stairs), and whether we find disconnected or damaged sections that need replacement before sealing. We give you one flat price per system, agreed in writing before any work starts. No per-vent pricing, no teaser coupons that balloon at the door. Call (361) 326-5060 for a free estimate.
We Also Serve Cities Near Southwest Ranches
Our Duct Sealing crews cover the full South Florida region, including Air Duct Cleaning in Southwest Ranches and Dryer Vent Cleaning in Southwest Ranches for customers who want their full system handled in one visit. We also dispatch to Jacksonville, Miami, Tampa, and Orlando. Scheduling is coordinated from our Miami office, with local crews serving each metro area.
Serving Southwest Ranches, FL - Our Local Coverage Area
We’re based in the Southwest Ranches area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Duct Sealing in Southwest Ranches
We typically schedule duct sealing appointments within 3 – 5 business days for Southwest Ranches, with dispatch from our Miami office. Call (361) 326-5060 to check this week’s availability.
Yes, we seal ducts across all of Southwest Ranches, from the large-lot estates along Southwest 172nd Avenue and the Griffin Road corridor to the newer construction near Sheridan Street.
We do not classify duct sealing as an emergency service, but our phones are answered by a live person 24/7 and we will schedule you as soon as our next opening allows.
Not necessarily. Southwest Ranches homes tend to be larger with more ductwork, which can push some jobs toward the higher end of our $450 – $1,200 range, but our per-system pricing is consistent across the Miami metro area.
Every duct sealing job is backed by our 365-Day Done Right Promise in writing: if the seal fails or your energy bills do not improve, we return and make it right at no charge, including a free second visit.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Southwest Ranches since 2004.