Fast, Reliable Duct Repair & Sealing Across Savannah
Duct repair and sealing in Savannah typically runs $280–$750 for most residential jobs, with same-day service available when you call (877) 565-7296 before noon. We’re familiar with every corner of this city — from the antebellum homes along Jones Street in the historic district to the mid-century ranches out in 31406 and the island properties on Wilmington Island and Skidaway Island. Scott Gray has spent two decades crawling through attics and crawlspaces across coastal Georgia, and our Duct Repair & Sealing team brings that hands-on experience directly to your door. Savannah’s salt-heavy air and year-round humidity create duct problems you won’t find in Atlanta or Macon — we know what to look for and we fix it with materials built to survive this environment.
Why Everest Air Duct Cleaning Service Georgia Is Savannah’s Preferred Duct Repair & Sealing Company
433 neighbors have rated us 4.9 stars — the numbers speak for themselves. That review volume matters in Savannah, where homeowners talk to each other at Forsyth Farmers’ Market and on neighborhood Facebook groups. We’ve earned that trust by showing up with Scott Gray on every job, not a rotating subcontractor who doesn’t know White Bluff from Whitemarsh Island.
Our response time to Savannah is typically same-day or next-morning when you call early. We route from our base with GPS awareness of Savannah’s traffic patterns — avoiding the bottleneck around the Talmadge Bridge during port traffic hours and knowing which historic district streets narrow to single-lane passage.
Two decades of crawlspace-level experience goes into every inspection. Scott Gray has worked in Savannah homes where ductwork threads through original 1800s brick chimney chases, where headroom in attics drops below four feet, and where crawlspace access requires navigating around live oak root systems. That specific knowledge prevents the guesswork that wastes time and money.
Our Duct Repair & Sealing Services in Savannah
Duct Sealing
Savannah’s humidity demands sealing that actually blocks moisture infiltration, not just air leakage. We use mastic sealant — a thick, brush-applied compound that remains flexible in our coastal temperature swings — rather than foil tape that peels when condensation forms. In homes near the marsh, particularly on Wilmington Island and Skidaway Island, we regularly find return ducts pulling in salt-laden outdoor air through gaps at plenum connections. Those leaks don’t just waste energy; they introduce corrosion-accelerating salt directly into your system. Our sealing protocol includes pressure-testing after completion to verify we’ve achieved measurable reduction in leakage.
Flex Duct Repair
The outer ZIPs of Savannah — 31406, 31409, and 31410 — contain thousands of mid-century and 1970s–80s tract homes with original flex duct that degrades rapidly in local humidity. The fiberglass insulation wrapping absorbs atmospheric moisture, the vapor barrier cracks, and the inner liner collapses or tears. We recently sealed a leaking duct joint in a 1960s ranch home in the 31406 ZIP code, where the original flex duct had pulled apart due to corroded fastener bands — we installed a galvanized steel collar and mastic seal, upgraded the nearby access panel with stainless hinges, and reinsulated the entire run. We don’t patch and pray; we replace the compromised section with new R-8 flex duct and secure it with marine-grade stainless steel clamps.
Metal Duct Repair
Savannah’s historic homes — especially those pre-1920 structures in 31401 and 31402 — often contain galvanized steel ductwork installed during mid-century HVAC retrofits. That metal corrodes from the inside out where salt humidity condenses on cool duct walls. We cut out rusted sections, fabricate replacement pieces from 26-gauge galvanized steel, and seal all longitudinal seams with mastic. In tighter attic chases common around Monterey Square and Calhoun Square, we use ovalized duct or custom-fitted elbows to maintain airflow without disturbing original plaster or trim.
Duct Insulation
Condensation control is the primary reason Savannah homes need properly insulated ducts. When 55°F conditioned air moves through ductwork in a 95°F attic with 80% relative humidity, the exterior surface sweats continuously. In the historic district, we regularly pull registers and find standing condensation on duct walls even in winter — something almost unheard of in Atlanta or Macon but routine here given Savannah’s marsh-level elevation and saturated ambient air. We install closed-cell foam insulation or replace degraded fiberglass wraps with new R-8 vapor-barrier insulation, sealing all seams to prevent moisture migration. For island homes exposed to salt spray, we specify insulation with enhanced UV and salt resistance.
What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Savannah
We use Rotobrush contact-cleaning systems and Nikro HEPA vacuums — the same equipment trusted in commercial remediation — to prepare duct surfaces before sealing and repair work begins. For air quality upgrades following repair, we install Honeywell and Aprilaire whole-home filtration and humidity control products in-house, so you’re not calling a second contractor to close the loop. We stock common duct repair components locally for Savannah customers: galvanized and stainless steel collars, mastic sealant rated for high-humidity environments, and marine-grade fasteners that won’t corrode in our salt air. That inventory means faster turnaround — most Savannah repairs complete in a single visit without waiting on parts orders.
Common Duct Repair & Sealing Problems We See in Savannah Homes
- Corroded access panel hardware — Springs, hinges, and fastener plates on duct access panels and dampers rust through in under 5 years in Savannah’s tidal zone. We replace with marine-grade stainless steel components that survive salt exposure.
- Fiberglass duct liner breakdown — Salt humidity accelerates deterioration of fiberglass duct liner, common in Wilmington Island homes under 15 years old. The liner delaminates and releases airborne fiberglass particles into living spaces.
- Standing condensation in winter — High water table and saturated ambient air cause duct walls to sweat even during Savannah’s brief cool periods, particularly in historic district homes where ductwork passes through unconditioned crawlspaces over damp soil.
- Disconnected flex duct at plenum connections — Thermal expansion and contraction from Savannah’s 9–10 month cooling season loosen tape and clamp connections, especially where original installations used standard steel fasteners now weakened by corrosion.
Pricing for Duct Repair & Sealing in Savannah, GA
| Service | Typical Range in Savannah |
|---|---|
| Single duct leak sealing (mastic) | $280–$420 |
| Flex duct section replacement (per run) | $340–$580 |
| Metal duct repair/patch (per section) | $380–$650 |
| Duct insulation replacement (per run) | $290–$480 |
| Full system sealing with pressure test | $650–$1,200 |
| Historic home access/retrofit surcharge | $150–$300 additional |
What moves you within these ranges: accessibility (crawlspace vs. walk-in attic), material type (standard vs. marine-grade stainless), and whether we find secondary damage like mold-affected liner requiring removal. Historic homes in 31401 and 31402 often require additional labor for careful navigation of original structures. We provide upfront written estimates before any work begins — call (877) 565-7296 for a free inspection and exact quote for your Savannah home.
We Also Serve Cities Near Savannah
Our service radius extends throughout Chatham County and the coastal islands. We regularly perform duct repair and sealing in Whitemarsh Island, where marsh exposure creates accelerated corrosion; Wilmington Island, with its mix of 1980s construction and newer builds facing salt-air challenges; Garden City, with industrial-area dust loading that stresses filtration and seals; and Skidaway Island, where luxury homes demand precision work in complex mechanical spaces. Each location presents distinct duct conditions based on proximity to salt water, home age, and construction type — we adjust our materials and methods accordingly.
Serving Savannah, GA — Our Local Coverage Area
We’re based in the Savannah 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 — Duct Repair & Sealing in Savannah
Savannah’s salt-laden coastal air corrodes standard steel duct hardware — fasteners, hinges, access panel springs, and damper linkages — in roughly half the lifespan you’d see in Atlanta or Macon. We specify marine-grade stainless steel components and galvanized collars as standard practice here, not upgrades. The salt also degrades fiberglass duct liner from the exterior when outdoor air leaks into return plenums. Call (877) 565-7296 for an inspection — we’ll check your hardware grade and identify any salt-accelerated deterioration.
Savannah’s high water table, marsh-level elevation, and year-round relative humidity of 70–80% keep ambient air saturated even during brief cool periods. When conditioned air at 55°F moves through ductwork in unconditioned spaces, the exterior surface temperature drops below the dew point, causing continuous condensation. In the historic district, many retrofitted duct runs pass through original 1800s crawlspaces over damp soil, amplifying the effect. Proper insulation and vapor-barrier sealing — not just patching leaks — is required to stop this cycle. We assess your specific dew-point risk during our free estimate.
Mastic sealant outperforms foil tape and spray foam in Savannah’s climate. Mastic remains flexible across our temperature range, adheres to damp surfaces better than tape, and creates a continuous moisture barrier that tape seams can’t match. We brush-apply two coats at all joints and connections, then pressure-test to verify leakage reduction. For island homes with direct salt exposure, we may specify epoxy-modified mastic with enhanced chemical resistance. Call (877) 565-7296 to discuss which sealing protocol fits your home’s location and duct material.
Homes within 5 miles of salt water — including all of Wilmington Island, Skidaway Island, and coastal Chatham County — should have ductwork visually inspected every 3 years for corrosion and seal degradation. Inland Savannah homes in 31406 and 31420 can extend to 5-year intervals unless you notice temperature imbalance, musty odors, or rising energy bills. After any major weather event with wind-driven rain or storm surge, we recommend checking outdoor duct connections and crawlspace runs for moisture intrusion. We offer scheduled inspection programs — call for details.
Yes. Scott Gray has worked in Savannah attics with less than 4 feet of headroom, navigating around original plaster lath, knob-and-tube wiring remnants, and live oak structural members. We use compact tools and flexible shaft drivers where standard equipment won’t fit, and we fabricate custom duct fittings in our shop when off-the-shelf elbows and transitions are too large. For the most constrained historic district spaces, we may recommend accessing from below through carefully cut plaster repair patches rather than attic work — we discuss these options transparently during your free estimate. Call (877) 565-7296 to schedule.
Ready to fix leaking, corroded, or poorly sealed ducts in your Savannah home? Scott Gray will inspect your system, explain what the salt air and humidity have done to it, and give you an upfront written estimate with no obligation. From dirty ducts to repaired, sealed, and sanitized — we handle the full scope. Call (877) 565-7296 today for same-day or next-morning service across Savannah, Whitemarsh Island, Wilmington Island, Garden City, and Skidaway Island.
Written by Scott Gray, Owner & Lead Technician at Everest Air Duct Cleaning Service Georgia, serving Savannah since 2004.