Leaky ducts waste 20-30% of your cooling and heating. Flat-rate residential duct sealing, repair, and replacement in Frisco. 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 Frisco, TX -- published straight from the field.
When a family on Geranium Dr in Frisco called with an AC that just wouldn't cool, our tech got to work diagnosing their Lennox system. To keep them comfortable while staying within their budget, they chose a refrigerant recharge with leak seal — a temporary, budget-conscious solu...
Ductwork in Frisco 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 Frisco 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.
Frisco ductwork problems split into two distinct categories based on when the home was built. Stonebriar — founded 1987, over 1,000 homes clustered near Stonebriar Centre mall — has original R-4 and R-6 flex duct that has been baking in 150-degree-plus attic heat for 30 to 38 years. The inner liner separates from the outer vapor barrier, mastic cracks and releases at boot connections, and the insulation compresses to half its original R-value. These homes need run-by-run replacement with modern R-8 insulated flex. The post-2000 builds in Starwood, Phillips Creek Ranch, Newman Village, Richwoods, Hollyhock, and The Grove almost never have a duct material problem — the flex is intact and connections are solid. What they have is a design problem inherited from production builders who reused one trunk layout across wildly different square footages.
I measure every Frisco ductwork complaint with a Dwyer Magnehelic gauge at the plenum and TrueFlow grid readings at individual registers. Healthy total external static pressure runs under 0.5 inches water column. Starwood and Newman Village two-stories with 4,000-5,000 square feet routinely test at 0.75-1.0 inches because the supply trunk feeding the upstairs zone was sized for a 2,800-square-foot plan and copy-pasted onto a 4,500-square-foot European-architecture layout. That excess static forces the ECM blower to ramp to maximum amperage trying to push air through an undersized pathway — shortening blower life by years and wasting $15-$25 per month in electricity. The fix is not duct sealing and not a new blower. The fix is a proper Manual D calculation and adding supply capacity to match the actual load.
Duct sealing runs $350 flat ($297.50 Frosty Club members) and makes sense when the flex core is intact but connections at takeoff boots have separated — common at the 10-15 year mark in Phillips Creek Ranch and Richwoods. Full run replacement is $700 per run ($595 members) and applies to degraded Stonebriar-era duct where the inner liner has failed. Every job closes with documented before-and-after static pressure readings so you see exactly what changed. EPA 608 Universal #2396328 (Omar), TACLA126718E (Mariafernanda), 143 reviews at 4.9 stars since January 1, 2018. We do not offer standalone duct insulation wraps — if insulation has failed, the core duct beneath it is compromised and needs full replacement. (469) 254-0548.
Neighborhoods we serve in Frisco: Stonebriar, Starwood, Newman Village, Phillips Creek Ranch, Richwoods, Hollyhock, The Grove
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 Frisco, 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 Frisco-adjacent neighborhood, these pages have local details for your ZIP.
Deeper context on ductwork written by Omar Jacobo (EPA 608 #2396328).
Duct sealing $350 ($297.50 members), single run replacement $700 ($595 members), plenum replacement $1,200-$1,500, supply trunk addition for undersized upstairs zones $1,500-$3,500 depending on attic access and length. Full-home duct replacement on a Stonebriar 1990s build with 12-18 runs typically $8,000-$14,000. Before-and-after static pressure documentation included on every job.
If the home was built in the late 1980s to early 1990s and still has original flex, the answer is almost always replacement. We cut an inspection window in the duct and check the inner liner — if it has separated from the outer barrier or crumbled at the connection points, sealing the outside cannot fix structural failure on the inside. R-8 insulated flex replacement at $700 per run is the permanent fix.
Production builders reused a single supply-trunk template across 2,800 sqft and 4,500 sqft floor plans to avoid paying for per-plan Manual D engineering. Your upstairs supply trunk is undersized for the actual thermal load, delivering 60-70% of required CFM. The solution is adding supply capacity or upsizing the trunk — not adjusting the thermostat, not adding a second system, and not sealing connections that are already tight.
Yes. When total external static pressure exceeds 0.5 inches water column — common in undersized Frisco two-story systems running 0.75-1.0 — the ECM blower draws maximum amperage continuously trying to overcome restriction. That adds $15-$25 per month in wasted electricity and shortens blower life. Fixing the duct restriction drops the blower back to normal operating range and the savings show on the next Oncor bill.
We do not offer duct cleaning as a standalone service. If a Frisco homeowner has air quality concerns, the real solutions are proper filtration (MERV-13 at the return), sealing duct connections so attic particulate stops infiltrating, and replacing degraded duct runs where the inner liner is shedding fiberglass. Blowing compressed air through intact duct accomplishes very little long-term.
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 Stonebriar and Starwood 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 Stonebriar and Starwood 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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