Fast, Reliable Duct Repair & Sealing Across Farmington Hills
Duct repair and sealing in Farmington Hills typically costs $280-$680 for most homes, and our Duct Repair & Sealing team can usually diagnose and quote the job same day. If your utility bills have climbed or certain rooms never reach temperature, the culprit is often leakage at joints, failed mastic, or separated connections in aging metal ductwork. We’ve been driving out to Farmington Hills from our dispatch routes for over four decades, and we know the difference between a quick seal and a system that’s been leaking conditioned air into your walls for twenty years.
Call (844) 685-6342. A live person answers, 24 hours a day. We’ll get a technician to your door in Farmington Hills, whether you’re off Grand River near the Costick Center, down by Heritage Park, or in the neighborhoods around 12 Mile and Halsted.
Why Bellows Air Duct & Vent Co. Is Farmington Hills’s Preferred Duct Repair & Sealing Company
Farmington Hills homeowners don’t call us because of a coupon. They call because their neighbor did, or because they tried the low-bid route once and spent two winters with a bedroom that wouldn’t warm up. We’ve built our reputation here on showing up when we say, quoting one honest price before we touch a tool, and standing behind the work with our 90-Day Done Right Promise - in writing, no paperwork, no arguing if something needs attention.
Our technicians are background-checked and uniformed, and they carry the equipment to complete most Farmington Hills jobs in a single visit. That matters on Drake Road, in the subdivisions off Orchard Lake, and throughout the 48332 zip code, where finished basements and original 1970s ductwork create access puzzles that less experienced crews walk away from.
We answer our own phones. Not an app. Not a call center in another state. A live person, 24/7. That’s how we’ve operated since 1984, and it’s how we still do business in Farmington Hills today.
Our Duct Repair & Sealing Services in Farmington Hills
Duct Sealing
Most Farmington Hills homes we visit lose 20-35% of their conditioned air to leaks before it ever reaches a register. The original mastic on your 1978 trunk lines has dried and cracked. Seams that were tight when Gerald Ford was president have worked loose through decades of thermal cycling. Our duct sealing service addresses this systematically: we pressurize the system, locate every leak with a smoke pencil or theatrical fog, then seal with fresh mastic or foil-backed tape rated for your operating temperatures. For a typical 2,400 square foot ranch in Farmington Hills, complete duct sealing runs $420-$650.
Flex Duct Repair
Flex duct wasn’t common in original 1970s construction, but it’s everywhere in Farmington Hills additions, basement renovations, and attic retrofits. The plastic liner degrades. The fiberglass insulation compacts. The sagging runs collect debris and restrict airflow. We replace damaged flex sections with new, properly supported runs, sizing them correctly for the CFM your room needs. A single flex duct replacement in a finished basement typically runs $180-$340, though access issues behind drywall can push that higher.
Metal Duct Repair
This is where our Farmington Hills experience pays off. Your original galvanized trunk-and-branch system was built to last, but crimped joints fail after multiple furnace replacements. Vibrations from new blowers loosen connections that were never designed to be re-tightened. We recently repaired a collapsed metal duct run in a 1978 colonial on Drake Road near Maple. The original trunk had been boxed in during a finished-basement renovation, and the branch to the master bedroom had separated at a crimped joint, dumping conditioned air into the ceiling cavity. We reconnected the sections with mastic and sheet-metal screws, then sealed the entire trunk with mastic to stop the estimated 30% leakage. Metal duct repairs in Farmington Hills typically range from $250-$580 depending on access and extent of damage.
Duct Insulation
Uninsulated or poorly insulated ductwork in your Farmington Hills basement or crawl space bleeds heat into unconditioned space all winter long. We wrap supply trunks with formaldehyde-free fiberglass insulation jacket, sealed at every seam, or apply closed-cell spray foam where appropriate. Insulation upgrades for a typical basement trunk system run $380-$720. The payback through reduced heating costs in Michigan’s six-month heating season is usually two to four years.
Mastic Sealant Application
We don’t trust tape alone. Mastic is a thick, fiber-reinforced sealant that remains flexible for decades, bridging gaps and coating seams that tape can’t handle. Our technicians brush mastic onto every joint, every seam, every penetration in your Farmington Hills duct system. It’s labor-intensive. It takes longer than slapping on foil tape. It also doesn’t fail after three heating seasons. Mastic-only sealing jobs start around $320 for accessible systems.
Air Leak Repair
Some leaks aren’t at joints. They’re rust holes in aging galvanized steel, gaps where ducts pass through framing, or disconnected boots behind finished walls. We locate these with camera inspection and pressure testing, then repair with sheet-metal patches, custom-fabricated transitions, or strategic replacement of damaged sections. Air leak repairs in Farmington Hills homes typically run $200-$490.
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.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Farmington Hills
Our trucks carry professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies - the same brands serious HVAC contractors specify for duct diagnostics and repair. We stock common sheet-metal fittings, flex duct, and mastic compounds sized for the trunk-and-branch systems common in Farmington Hills’s 1970s and 1980s housing stock. That means faster turnaround for you. We’re not ordering parts from a warehouse three counties away while your bedroom stays cold.
Common Duct Repair & Sealing Problems We See in Farmington Hills Homes
- Original galvanized ductwork, never professionally cleaned. Farmington Hills underwent its heaviest residential development during the 1970s and 1980s, when Detroit’s auto-industry boom drew engineers and executives to large ranch homes and two-story colonials in what was then Farmington Township. A substantial portion of that housing stock still retains its original galvanized trunk-and-branch ductwork - systems now 40-50 years old that have endured Michigan’s six-month heating seasons without professional duct cleaning, often surviving two or three furnace replacements while the duct interiors were never touched.
- Construction-era debris still circulating. Technicians working in Farmington Hills frequently find construction-era debris - drywall compound dust, fiberglass insulation fibers from original blown-in attic work - still present in low-velocity branch runs near the ends of the duct tree, because these homes had their furnaces swapped out one or more times without anyone ever accessing the ducts themselves; the replacement contractors connected new equipment to old ductwork and moved on.
- Finished basements boxing in original ductwork. The dominant housing type is the large 1970s-80s ranch, split-level, or colonial built for automotive professionals, typically featuring sprawling basement duct systems with long branch runs and multiple supply trunks. Finished-basement renovations - extremely common in this affluent suburb - have boxed in original ductwork, restricting access and making thorough cleaning more labor-intensive than in communities with simpler slab-on-grade construction.
- Humidity-driven mold in shoulder seasons. Southeast Michigan’s heating season runs roughly October through April, meaning forced-air systems operate nearly continuously for six months and accumulate debris far faster than in milder climates. The region’s Great Lakes humidity also promotes condensation inside ducts during spring and fall shoulder seasons when systems cycle on and off, creating conditions for mold and mildew growth in duct interiors that aren’t regularly inspected.
Pricing for Duct Repair & Sealing in Farmington Hills, MI
We don’t bait with a low phone quote and change the price at your door. Here’s what duct repair and sealing actually costs in Farmington Hills:
| Service | Typical Range |
|---|---|
| Duct sealing (whole system, accessible) | $420 - $650 |
| Metal duct repair (per section/joint) | $250 - $580 |
| Flex duct replacement | $180 - $340 |
| Mastic sealant application only | $320 - $480 |
| Duct insulation upgrade | $380 - $720 |
| Air leak repair (per location) | $200 - $490 |
Factors that affect your specific price: accessibility behind finished basement walls, extent of corrosion in original galvanized steel, number of disconnected joints, and whether we need to cut access panels. We inspect with a camera before quoting, so you see what we see. Estimates are free. Call (844) 685-6342.
Standing offers: $50 off any repair over $250. Free second opinion on any written estimate. Permanent 5% senior and veteran discount.
We Also Serve Cities Near Farmington Hills
Our service area extends to Novi, Livonia, Redford, and West Bloomfield Township. If you’re in Farmington Hills proper, we’re typically at your door within the hour. Neighboring communities may see slightly longer response times depending on routing.
Serving Farmington Hills, MI - Our Local Coverage Area
We’re based in the Farmington Hills 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 Farmington Hills
Yes, in most cases. Original galvanized steel in Farmington Hills homes is heavy-gauge material that outlasts the connections and sealant. We pressurize the system, locate every leak, then re-crimp loose joints and coat all seams with fresh mastic. Replacement is only necessary where rust has perforated the metal or where previous DIY repairs have damaged the duct structure. Call (844) 685-6342 for a camera inspection - estimates are free, and we’ll show you exactly what we’re seeing.
Whistling means high-velocity air escaping through a gap. In Farmington Hills homes, it’s usually a separated boot behind a register, a failed joint at a trunk-to-branch transition, or a gap where a previous furnace replacement left an ill-fitting transition. The sound gets louder in winter because your blower runs longer and harder during Michigan’s heating season. We find the source with a smoke test and seal it permanently. Most whistling repairs run $200-$350. Call (844) 685-6342 and we’ll quiet it down.
A typical 2,400 square foot ranch in Farmington Hills with accessible basement ductwork runs $420-$650 for complete sealing with mastic. If your basement is finished and we need to cut access panels or work through drop-ceiling tiles, expect $580-$820. We quote the exact price after camera inspection, before any work begins. The $50 off repair over $250 offer applies. Call (844) 685-6342 for your specific quote.
Yes, though finished basements in Farmington Hills often require more labor. The original flex runs in 1980s renovations weren’t always installed with future access in mind. We locate the damage with a camera, then determine the least invasive access point - sometimes a register boot, sometimes a carefully cut panel that we can restore. Flex duct repair in finished basements typically runs $240-$420 versus $180-$340 in open basements. We’ll show you the camera footage and discuss options before cutting anything.
We remove the old insulation, seal the underlying metal with mastic, then re-insulate with new jacketing. Taping or mastic over existing insulation traps moisture and hides future leaks. In Farmington Hills’s humid climate, that’s a recipe for mold. The proper method costs more upfront - typically $520-$780 for a standard trunk system - but it’s the only approach that lasts and keeps your air clean. We don’t do half-measures. Call (844) 685-6342 to schedule.
Written by Ray Castillo, Owner at Bellows Air Duct & Vent Co., serving Farmington Hills since 1984.