Leaky ducts waste 20-30% of your cooling and heating. Flat-rate residential duct sealing, repair, and replacement in Flower Mound. Static pressure diagnostic $85 (waived with repair). Licensed TACLA126718E, EPA 608 Universal certified, family-owned since 2018.
Real stories from recent Frosty's HVAC jobs in Flower Mound, TX -- published straight from the field.
When this Cedar Ridge Dr family in Flower Mound noticed weak airflow and their home just wouldn't cool down, they called us in. Our tech tracked it down to a failing blower motor and brought the 20+ year old system back to life!!! Now the house is comfortable once more — exactly ...
Ductwork in Flower Mound starts at $85 for a static pressure diagnostic (waived with any repair). Most homes need 2-5 targeted repairs, not a full duct redesign. We're flat-rate, which means the price quoted before we start is the price you pay at the end. Frosty Club members save 10-15% on every job.
| Service | Regular Price | Frosty Club Member |
|---|---|---|
| Diagnostic / static pressure test(Waived with repair) | $85 | $0 — never for members |
| Duct sealing (per repair) | $350 | $297.50 |
| Full duct replacement (per run) | $700 | $595 |
| Plenum replacement | $1,200 – $1,500 | $1,020 – $1,275 |
| Basic tune-up (related upsell) | $150 | $127.50 |
Per the EPA, indoor air is 2-5x more polluted than outdoor air — and leaky ducts are one of the main causes. Every crack, loose connection, and failed tape seal pulls unfiltered attic air (dust, pollen, insulation fibers, rodent droppings) directly into your supply stream. Sealing and replacing bad runs is one of the highest-impact IAQ improvements we make.
Basic ($99/yr):10% off all services | Premium ($300/yr): 15% off + $500 repair credit + 2 free tune-ups/year
Join Frosty ClubLeaky and undersized ducts are the single most-missed cause of comfort problems I see in DFW homes. Here's what we find most often on Flower Mound diagnostic calls, and what each one typically costs to fix.
Classic sign of leaky supply runs or a failing zone damper. $85 diagnostic pinpoints the exact run. Fix is usually 1-3 duct repairs at $350 each.
Leaky returns pull unfiltered attic air straight into your supply stream. Sealing at $350 per repair stops the contamination at the source.
20-30% duct leakage means 20-30% more AC runtime. Sealing bad connections typically cuts summer bills 15-25%. 3-5 year payback.
Condensation inside flex liner leads to mold growth. You can't clean mold out of fiberglass — the only fix is replacement at $700 per run.
Usually undersized returns or crimped supply runs choking airflow. Manometer test during diagnostic measures exact loss. Fix varies by cause.
Leaky ducts pull pollen, dust, and insulation fibers into your breathing air. Duct sealing is one of the highest-impact IAQ improvements we make.
Ductwork in Flower Mound is a volume problem. Wellington's 2,500-4,500+ sqft two-story homes have 18-24 supply runs feeding two floors plus bonus rooms, media rooms, and game rooms that builders added at the end of the construction cycle with undersized flex branches. Bridlewood's golf-course homes are the same story — 1996-2004 construction with original grey flex duct that's now 20-28 years old, baking in a 140-160°F attic every summer. At 22% leakage on a 5-ton system pushing 2,000 CFM, you're losing 440 CFM into the attic — and on a home this size, that translates to $100-$150 per month of wasted Oncor electricity in summer.
The two-story dual-system configuration in Wellington and Bridlewood creates a ductwork failure pattern I see constantly: the upstairs system's ductwork fails first because it sits in the hottest part of the attic (directly under the roof deck), while the downstairs system's ducts — running through a conditioned chase or lower attic space — survive longer. Homeowners notice the upstairs getting hotter every summer and blame the equipment, but when we measure static pressure the ducts are reading 0.8-1.0 inches of water column (healthy is under 0.5). Collapsed flex, disconnected boots, and duct-tape joints that failed a decade ago are starving the upstairs system of airflow.
Every ductwork job in Flower Mound includes before-and-after static pressure readings and a smoke test on the return side. Duct sealing is $350 flat ($297.50 for Frosty Club members), targeted flex run replacement is $700 per run ($595 members), plenum replacement $1,200-$1,500. Full duct replacement on a 3,500-4,500 sqft Flower Mound home with 18-24 runs typically lands at $12,000-$17,000 depending on attic accessibility and the number of floors. I don't sell standalone duct insulation — if the liner is deteriorated enough to need attention, the whole run needs replacing.
Neighborhoods we serve in Flower Mound: Wellington, Bridlewood, Canyon Falls, Lakewood Village, Tour 18
Because every credential is independently verifiable and directly tied to the work — Texas HVAC Contractor License TACLA126718E covers duct modification and airflow, EPA Indoor Air Quality guidance drives our sealing and replacement decisions, and U.S. DOE research documents the 20-30% energy savings that back our flat-rate pricing.
Texas HVAC Contractor License held by Mariafernanda Jacobo. Issued and regulated by the Texas Department of Licensing and Regulation.
Per the U.S. EPA, leaky ducts are a primary contributor to poor indoor air quality. We measure, document, and fix.
The U.S. Department of Energy says duct losses can account for 20-30% of HVAC energy use. Sealing pays back fast.
Learn more about our credentials on our About page or visit omar-jacobo.com.
Frosty's covers every residential HVAC need in Flower Mound, TX — one phone line, one flat-rate pricing book, one licensed (TACLA126718E) family-owned team.
Same flat-rate ductworkpricing across every city we cover. If you're in a Flower Mound-adjacent neighborhood, these pages have local details for your ZIP.
Deeper context on ductwork written by Omar Jacobo (EPA 608 #2396328).
Signs: upstairs rooms that get progressively hotter each summer (common on Wellington and Bridlewood two-story homes), Oncor summer bills disproportionate to home size, visible dust at supply registers, musty smell when the system kicks on, or ductwork visibly collapsed or disconnected in the attic. On 20-28 year old homes in Wellington and Bridlewood, replacement is more common than sealing because the flex liner has deteriorated past repair.
Duct sealing $350 flat ($297.50 for Frosty Club members), duct replacement $700 per run ($595 for members), plenum replacement $1,200-$1,500. Flower Mound homes typically have 18-24 supply runs plus returns across two floors, so a full replacement lands at $12,000-$17,000. We quote flat-rate before starting and include before-and-after static pressure readings to verify improvement.
On dual-system Wellington, Bridlewood, and Tour 18 homes, the upstairs ductwork sits in the hottest part of the attic (directly under the roof deck at 140-160°F in summer) and deteriorates faster than the downstairs ducts. Collapsed flex, disconnected boots, and failed duct-tape joints starve the upstairs system of airflow. We measure static pressure during the $85 diagnostic — if it's above 0.5 inches water column, the ducts are restricting the system.
Depends on condition. Newer Canyon Falls (2015+) flex with intact material and leaky joints seals well at $350. On 20-28 year old Wellington and Bridlewood ductwork where the inner liner is brittle, delaminated, or shows biofilm growth from decades of Denton County humidity — sealing won't hold. We inspect first and give you an honest answer. If the liner crumbles when you touch it, that's a replacement.
Yes, and we often recommend phasing: replace the failed upstairs ducts now (where attic heat causes the most damage), then schedule the downstairs when budget allows or when those ducts reach end-of-life. On Wellington and Bridlewood homes where both systems are original 1995-2004 ductwork, replacing everything at once saves a second mobilization and ensures consistent static pressure across both zones.
Yes — EPA 608 Universal cert #2396328 lets me legally recover, recycle, and recharge R-22 under federal regulations. R-22 production ended in 2020 under the Clean Air Act phase-out (EPA.gov), so it now runs $200 per pound installed. A typical Wellington and Bridlewood R-22 leak repair totals $650-$1,000: electronic leak detection ($250) or nitrogen leak test ($500) plus recharge at $200/lb. Optional leak seal $350 — but it can void manufacturer warranties, so I only recommend it in specific cases. For systems past 12 years with major leaks, planning the transition to R-454B or R-32 is usually the better economics. Read our R-410A phase-out explainer for DFW homeowners.
Yes — ductwork outlives 2-3 system replacements. R-410A new-equipment production ended Jan 2025 under the AIM Act (Energy.gov), so your next replacement will use R-454B or R-32. Sizing the Wellington and Bridlewood ductwork correctly now sets up the new system regardless of refrigerant. EPA 608 Universal cert #2396328 covers all refrigerant work. Read our R-410A phase-out explainer for DFW homeowners.
Call (469) 254-0548 or request service online to book an $85 static pressure diagnostic (waived with any repair). We schedule duct diagnostics within 1-3 days and bring a manometer, bore-scope, and written report to every call. Flat-rate pricing — no surprises, no hourly charges.
Written by Omar Jacobo, EPA 608 Universal Certified Lead Technician at Frosty's HVAC LLC. Licensed TACLA126718E.
Written by
By Omar Jacobo
Texas Licensed HVAC Contractor #TACLA126718E · EPA #2396328
Co-Owner of Frosty's HVAC LLC, serving DFW since 2018. Learn more
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