Fast, Reliable Duct Repair & Sealing Across Novi
Duct repair and sealing in Novi typically runs $280-$890 depending on scope, and most jobs are completed in a single visit with our crew arriving the same day you call. If your home’s along Beck Road, Meadowbrook, or anywhere in the 48374-48377 ZIP codes, we’re familiar with the ductwork patterns in your neighborhood because we’ve been working here since 1984.
We answer our phones live, 24 hours a day. No voicemail. No app. Call (844) 685-6342 and you’ll speak to a real person who can dispatch our Duct Repair & Sealing team to your Novi home today.
Why Bellows Air Duct & Vent Co. Is Novi’s Preferred Duct Repair & Sealing Company
We’ve been driving to Novi since the city’s big residential build-out in the late 1980s and 1990s. That matters. We know which subdivisions have the long branch runs, which have the dual-zone systems, and which have the humidifier-plenum problems that technicians from outside Oakland County miss entirely.
Our customers in Hunters Ridge, Lakewoode Parkhomes, and the neighborhoods off 12 Mile Road call us back because we show them the problem before we quote the fix. Camera inspection, every time. The number on the phone is the number on the invoice.
We’re licensed and insured, our technicians are background-checked and uniformed, and our 90-Day Done Right Promise means if something isn’t right, we return at no charge with no paperwork to argue over. We’ve operated this way for over 42 years. It’s not new. It’s just how we do the work.
Most Novi calls are answered within two rings, and we schedule same-day or next-day appointments across all four Novi ZIP codes.
Our Duct Repair & Sealing Services in Novi
Duct Sealing
Leaky ducts waste 20-30% of heated and cooled air before it reaches your rooms. In Novi’s larger colonials with finished basements and bonus rooms, that waste adds up fast. We seal supply and return trunks with mastic and metal-backed tape, then verify the seal with a camera inspection. A typical duct sealing job in Novi runs $340-$620 for a single-system home, $580-$890 for homes with two or three air handlers.
Flex Duct Repair
Flex duct is common in Novi’s 1990s subdivisions, and it’s where we see the most age-related failure. The liner degrades. The insulation compresses. Sagging creates traps where moisture collects. In the Hunters Ridge subdivision off Beck Road, we repaired a flex-duct branch that had collapsed due to accumulated moisture from a neglected Aprilaire humidifier; the homeowner reported uneven heating for years before our Rotobrush inspection revealed the biofilm-choked supply trunk and sagging flex-duct. Flex duct repair in Novi typically costs $180-$420 per branch, depending on access and length.
Metal Duct Repair
Older metal ductwork in Novi’s 1980s builds develops seam separation and corrosion at joints. We patch, replace sections, and re-seal with mastic. Tight crawlspace access in zero-lot-line townhomes forces our techs to use compact Abatement Technologies HEPA vacuums to avoid cross-contamination during metal-duct repairs. Metal duct repair in Novi generally runs $260-$550.
Duct Insulation
Uninsulated or degraded duct insulation in attics and crawlspaces costs Novi homeowners every heating season. Southeast Michigan’s furnaces run six months or more, and heat loss through thin or torn insulation is money you don’t get back. We install foil-faced fiberglass and closed-cell wrap rated for Michigan temperature swings. Duct insulation in Novi typically runs $2.80-$4.50 per linear foot, with most jobs falling between $320 and $680.
Mastic Sealant Application
Mastic is the only sealant we trust for permanent duct repair. Tape dries out. Mastic stays flexible. We brush or spray it at every joint, every boot, every penetration. Decades of pet dander and dust in long branch runs common in large Novi colonials block zone dampers, requiring mastic-seal re-application at every joint to restore proper airflow balance. Mastic sealing as a standalone service in Novi runs $280-$520.
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 Novi
We carry parts and stock common repair materials for Aprilaire, Abatement Technologies, and Rotobrush systems - the brands installed in most Novi homes during the 1990s and 2000s build-out. When your Aprilaire humidifier has clogged the supply plenum with hard-water scale, we don’t need to order parts from out of state. We have the replacement plenum sections, humidifier pads, and mastic on the truck. That means faster turnaround and no return visits for forgotten materials.
Common Duct Repair & Sealing Problems We See in Novi Homes
- Mineral-scaled humidifier deposits restrict airflow at the supply plenum, causing static pressure imbalances that tear flex-duct liners. Novi’s 1990s subdivisions were built with integrated whole-home humidifiers that, due to Oakland County’s hard water, develop mineral scale and biofilm inside the supply plenum within 20 years - a contamination pattern unique among metro Detroit suburbs.
- Collapsed flex-duct branches in long attic runs. Novi’s larger two-story homes often have 30-50 foot flex-duct spans to bonus rooms and finished basements. Gravity and moisture win eventually.
- Failed zone dampers in multi-system homes. Many Novi colonials have two or three air handlers with motorized dampers that jam after decades of dust accumulation, requiring duct disassembly and re-sealing.
- Attic insulation degradation from Southeast Michigan’s temperature swings. Summer attic temperatures hit 140°F; winter brings sub-zero nights. That cycle cracks duct insulation and loosens tape seals annually.
Pricing for Duct Repair & Sealing in Novi, MI
| Service | Typical Range in Novi | Most Common Price Point |
|---|---|---|
| Duct sealing (single system) | $340-$620 | $480 |
| Duct sealing (multi-system) | $580-$890 | $720 |
| Flex duct repair (per branch) | $180-$420 | $290 |
| Metal duct repair | $260-$550 | $380 |
| Duct insulation | $320-$680 | $450 |
| Mastic sealant application | $280-$520 | $390 |
What moves the price? Number of air handlers, attic versus crawlspace access, whether we need to remove degraded liner before sealing, and the extent of humidifier-plenum contamination. We inspect with a camera first, show you what we found, and give you the exact price before any work begins. No bait coupons. No price changes at the door.
Current standing offers: $50 Off Any Repair Over $250, Free Second Opinion on Any Written Estimate, and a permanent 5% Senior and Veteran discount.
Call (844) 685-6342 for your free estimate.
We Also Serve Cities Near Novi
Our Duct Repair & Sealing in Novi crew also responds to calls in Farmington Hills, West Bloomfield Township, Livonia, and Redford. Same trucks, same technicians, same upfront pricing policy.
Serving Novi, MI - Our Local Coverage Area
We’re based in the Novi 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 Novi
Hard water increases repair costs when mineral scale from whole-home humidifiers has clogged the supply plenum or degraded the first few feet of supply trunk. In Novi, this is common enough that we build humidifier-plenum inspection into every quote. If we find heavy scale, plan on $120-$280 additional for plenum cleaning or section replacement. Call (844) 685-6342 for an exact quote - estimates are free.
Yes, uneven temperatures in 1990s Novi homes are most often caused by collapsed flex-duct branches, stuck zone dampers, or leaks at mastic joints that have dried out after 25-35 years. Our camera inspection identifies which problem you have. Most temperature-balance issues we fix in Novi are resolved with $280-$520 of targeted sealing and repair. Call (844) 685-6342 for an exact quote - estimates are free.
Yes, we answer calls live 24 hours a day and schedule emergency repairs for Novi townhomes, including zero-lot-line properties with tight crawlspace access. Our compact Abatement Technologies HEPA vacuums fit where standard equipment won’t. After-hours emergency rates apply; call (844) 685-6342 for current pricing and availability.
Novi homes need foil-faced fiberglass insulation with a minimum R-6 rating for attic runs, and closed-cell wrap for crawlspace lines. Southeast Michigan’s six-month heating season and summer humidity swings demand insulation that won’t compress or mold. Most Novi homes we re-insulate use a hybrid of both types. Call (844) 685-6342 for an exact quote - estimates are free.
Yes, our technicians regularly work in the shallow, truss-restricted attics common in Novi’s 2,500-4,500 square foot colonials. We use compact inspection cameras and portable equipment to avoid removing drywall when possible. Access difficulty may add $80-$150 to standard pricing. Call (844) 685-6342 for an exact quote - estimates are free.
Ready to get your Novi home’s ductwork sealed right? Call Bellows Air Duct & Vent Co. at (844) 685-6342. We’ll answer live, schedule your free camera inspection, and show you the exact price before we lift a single tool. Done right - and backed in writing for 90 days.
Written by Ray Castillo, Owner at Bellows Air Duct & Vent Co., serving Novi since 1984.