Duct Sealing in Westerville - Tested First, Written Price Second

Fast, Reliable Duct Sealing Across Westerville

Duct sealing in Westerville typically costs $450 – $1,200 for a whole-home seal, depending on whether we’re working with modern flex duct or legacy rigid runs in the older core. Most jobs are scheduled within a week and take a half day to complete. Call (361) 326-5060 for a written estimate before any work starts.

Call (361) 326-5060

We’ve been dispatching crews to Westerville from our Cleveland office long enough to know the difference between a 1980s ranch on Schrock Road and a pre-war bungalow in Uptown. That matters because the ductwork tells a different story in each, and the sealing approach changes completely. Westerville’s housing stock splits between historic core homes with original gravity systems and newer subdivisions with flex duct, so we don’t walk in with one playbook. We map the system first, price it in writing, then seal it by the book.

Why Hollis Air Duct Cleaning Is Westerville’s Preferred Duct Sealing Company

Hollis Air Duct Cleaning has built its reputation in Westerville on showing up inside the window and leaving the site clean. We’re part of the Garrison Partners family, operating under The Garrison Standard since 2004, and our Duct Sealing team treats every Westerville job with the same discipline: written price before work starts, background-checked uniformed technicians, and a 365-Day Done Right Promise that covers the full seal in writing.

Our crews know Westerville’s split personality. Homes inside the 43081 zip near Uptown often have asbestos-wrapped rigid duct or under-floor plenums that haven’t been touched since the coal furnace era. Out toward Maxtown Road and the newer developments, we’re dealing with flex duct retrofits that crush at the joint or pull loose from the plenum. That local knowledge keeps us from guessing, and it keeps your price from moving once we’re inside.

Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops. No callback queues. When you call (361) 326-5060, you talk to someone who can schedule a Westerville appointment and explain what the technician will actually do.

Duct Repair in Westerville

Duct Repair in Westerville often starts with a phone call about one room that never heats evenly or a blower motor that short-cycles. We find crushed runs, disconnected joints, or legacy plenums that have separated from the modern retrofit. The fix ranges from $280 – $650 for joint reconnection and patch sealing, up to $800 – $1,400 if we’re replacing a damaged section of rigid duct or rebuilding a plenum connection.

Disconnected Supply Runs

A camera inspection usually reveals the break. In Westerville’s older homes, we see supply lines that pulled loose from gravity plenums when the furnace was upgraded decades ago. The register still blows, but it’s drawing attic or crawl air instead of conditioned air. We reconnect with mechanical fasteners, seal with Guardsman mastic and mesh, and verify static pressure at the register before we leave.

Crushed or Collapsed Sections

Small lots in Westerville’s core mean tight crawl spaces and buried duct runs. Landscaping work, foundation settling, or a previous owner’s DIY project can crush a rigid run flat. We cut in access, assess whether the section can be reformed or needs replacement, and price both options in writing before touching tools.

Air Duct Sealing in Westerville

Air Duct Sealing in Westerville is the step that fixes the leaks your filter can’t reach. We pressurize the system, measure leakage at the plenum and trunk lines, then seal accessible joints with mastic and fiberglass mesh. For whole-home sealing, Westerville homeowners typically pay $450 – $1,200. Add Aeroseal injection for inaccessible leaks in wall or floor cavities, and the range moves to $1,800 – $2,800.

Mastic and Mesh Hand Sealing

This is the standard we apply to every accessible joint. We brush on Guardsman mastic, embed fiberglass mesh for structural reinforcement, and coat again. It dries flexible, holds through Ohio’s freeze-thaw cycles, and lasts the life of the duct. We photograph before and after so you see what was sealed.

Aeroseal Injection for Hidden Leaks

When leaks are buried in walls or under slabs, we block the registers and inject sealant particles that travel to leak points and build up until the gap closes. The computer prints a leakage report before and after. Most Westerville homes see 30 – 90% leakage reduction. We recommend this when hand sealing can’t reach the problem.

Trusted Brands We Service in Westerville

Our vans carry professional-grade equipment, not hardware-store gear. For duct sealing in Westerville, we stock Guardsman mastic and mesh, run Rotobrush rotary systems for pre-seal cleaning, and use Nikro negative-air machines with HEPA filtration when we’re working in occupied homes. We also source Honeywell and Aprilaire filtration products for homeowners who want to upgrade their return-side protection after the seal is complete. Parts are on the van, so most Westerville jobs don’t wait on a supply run.

Common Duct Sealing Problems We See in Westerville Homes

• Legacy coal dust in Uptown plenums. Original gravity furnace plenums under pre-war homes still contain decades of coal dust that modern filters never caught. Sealing without source removal just traps the particulate in the system, so we agitate and extract before we seal.
• Flex duct crushing at rigid transitions. Newer Westerville subdivisions often have oversized flex spliced onto undersized rigid runs. The weight of the flex collapses the joint, the mastic seal fails within a season, and the leak reopens. We rebuild the transition with proper support and sealant.
• Hidden runs buried under slab or landscaping. Small lots in the historic core mean ductwork was routed wherever space allowed. A camera inspection finds crushed sections that manual tracing misses, preventing a seal job that looks complete but leaves a major leak.
• County-line permit confusion. Because Westerville straddles Franklin and Delaware counties, the same sealing scope can require different inspection steps depending on which side of the line your address falls. We handle the permit culture on your side so you don’t have to sort it out.

Pricing for Duct Sealing in Westerville, OH

We Also Serve Cities Near Westerville

Our crews work across the northern Columbus metro, including Duct Sealing in Westerville and surrounding communities. We also serve Columbus, New Albany, Powell, and Sunbury with the same written pricing, background-checked technicians, and 365-Day Done Right Promise.

FAQs About Duct Sealing in Westerville