Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
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AfterFast, Reliable Air Duct Repair Across Lexington
Air duct repair in Lexington typically runs $180 – $650 depending on what’s failed. A collapsed flex connector in a basement chase costs less than a rusted-out return boot behind a finished wall, but neither job should wait long once air starts leaking. Linden Air Duct Cleaning serves Lexington homeowners with written pricing before any work begins, background-checked technicians who show photo ID at your door, and a 365-Day Done Right Promise on every repair. Call (980) 447-2498 for a free estimate on duct repair, replacement, or installation anywhere in Lexington.
Why Linden Air Duct Cleaning Is Lexington’s Preferred Air Duct Repair Company
Homeowners in Lexington call us because we treat air ducts the way this town treats everything else: with documentation, verification, and a refusal to cut corners. Lexington is full of technically-minded people, many working in the Route 128 biotech corridor, and they want to know exactly what a technician found, what it will cost, and what happens if the repair fails. We tell them, in writing, before the work starts.
Our technicians arrive in clean, marked uniforms. You get their name and photo before the visit. They show a photo ID badge at the door. That’s the Threshold Standard, and it’s how we’ve operated since 2004. It matters especially in Lexington, where letting a stranger into your home is a decision you should not have to second-guess.
When a repair is done, you get a written guarantee covering the work for 365 days. If a covered repair does not hold, we come back at no charge. No arguments, no fine print. That’s the kind of accountability people in Lexington expect from anyone working on their home.
HVAC Duct Installation in Lexington
HVAC Duct Installation in Lexington usually means adding new supply and return runs for a second-floor addition, a finished basement, or a system that was undersized from the start. The town’s post-WWII housing stock, built roughly 1955 through 1975, often came with sheet-metal ductwork sized for the original footprint. When a Lexington homeowner adds a bedroom over the garage and the upstairs never quite heats or cools, the ducts are usually part of the problem.
We install new duct runs sized to the room’s actual load, not guessed from a rule of thumb. Seams get sealed with mastic and foil tape to current code, not the loose friction fits that were acceptable sixty years ago. A straightforward single-room supply and return install in Lexington typically runs $650 – $1,200. A full basement finish with multiple registers and a new return can run $1,400 – $2,800. Every quote is put in writing before any work begins.
Installation for Lexington Additions
Second-floor additions in Lexington’s colonial and split-level homes almost always require extending ductwork through finished ceilings or closet chases. We plan the route to minimize drywall cuts and avoid load-bearing framing. Where possible, we use insulated flex for the final connection to reduce noise and condensation risk in unconditioned spaces.
Basement and Crawlspace Runs
Many Lexington homes route original ducts through unfinished basement chases with low clearance. Installing new runs there means accounting for joist spacing, existing plumbing and electrical, and access for future service. We slope horizontal runs correctly and seal every joint, because a leaky basement run wastes conditioned air and pulls in radon, dust, and humidity from the foundation.
Air Duct Replacement in Lexington
Air Duct Replacement in Lexington is the right call when the original 1960s-era sheet metal has rusted through, collapsed, or been compromised by renovation debris to the point that repair is false economy. In older sections of Lexington such as Fiske Hill and East Lexington, original duct runs are frequently found in unfinished basement chases and dropped soffits, and fifty-plus years of moisture and neglect take a measurable toll.
Replacement cost in Lexington typically runs $900 – $2,400 for a single trunk line or a set of supply runs, depending on accessibility and linear footage. Full-system replacement in a large colonial can exceed $4,000. We give you a firm written price before any work starts, so the number on the quote is the number you pay.
When Repair Is Not Enough
Rusted boots at floor registers, collapsed flex connectors in soffits, and duct runs that have separated at the seams are all candidates for replacement rather than patchwork. If a camera inspection shows more than about 30 percent of a run is compromised, replacement is usually the cheaper honest answer.
Guardsman Sealant and Materials
We install sealed replacement materials from trade-trusted brands including Guardsman, and we stand behind them with our 365-Day Done Right Promise. If a replaced section fails within a year, we come back and fix it at no charge. That’s in writing, on every single replacement job.
Trusted Brands We Service in Lexington
Our crews work with professional-grade equipment from Nikro and Rotobrush, and we stock common replacement parts for Lexington’s older duct systems: boots, elbows, flex connectors, mastic, and foil tape. Because so many Lexington homes run 1960s-era sheet metal, we keep the fittings for that era on hand instead of waiting on a distributor. When air-quality improvements are part of the job, we install products from Honeywell, Aprilaire, and Abatement Technologies, including media filters and whole-house air cleaners. Parts availability means faster turnaround for Lexington customers, especially during the heating season when duct failures are most disruptive. Call (980) 447-2498 to schedule an inspection and get a written quote.
Common Air Duct Repair Problems We See in Lexington Homes
- Collapsed flex connectors in basement chases. The original connectors on 50-to-70-year-old Lexington ductwork dry out and collapse, choking airflow to entire rooms. We replace them with sealed, properly sized fittings that will not crush under their own weight.
- Degraded asbestos-containing wrap on mid-century horizontal runs. In the ranch and split-level clusters near Waltham Street and Peacock Farm, horizontal supply runs were often insulated with asbestos-containing wrap at boots and elbows. Our crews run a pre-inspection asbestos checklist and containment protocol before any mechanical agitation, a step rarely needed in newer subdivisions like Burlington.
- Rust-through from snowmelt and ice damming. Lexington gets about 48 inches of snow a year, and in older homes with ice-dam issues, snowmelt can find its way into duct seams and register boots. We see rusted return boots in homes along Mass Ave and Lowell Street where water pooled behind knee walls and ran down into the duct chase.
- Renovation dust packed into under-sealed ducts. Lexington has an active renovation market, and practically every second-floor addition or basement finish pushes drywall dust and construction debris into the original duct system. We see ducts blocked 40 percent or more by renovation dust that was never removed after the project wrapped up.
Pricing for Air Duct Repair in Lexington, MA
Most air duct repair work in Lexington falls into these ranges: sealing a separated joint or small leak runs $180 – $350. Replacing a failed flex connector or boot runs $250 – $500 per fitting. Repairing or replacing a section of rusted trunk line runs $500 – $1,200 depending on access. Full replacement of a major duct run in a Lexington colonial or split-level runs $900 – $2,400. Every quote is one flat price per system, agreed before work starts, and the price you’re quoted is the price you pay. No per-vent fees, no surprise add-ons when the van is in your driveway. Call (980) 447-2498 for a free estimate and a written quote.
We Also Serve Cities Near Lexington
Our crews serve Lexington and the surrounding communities, including Lexington itself along with Woburn, Winchester, Burlington, and Arlington. If you’re just outside Lexington proper, ask about our coverage in your neighborhood. For the full scope of what we do, see our Air Duct Repair service page or call (980) 447-2498 and speak with a person.
Serving Lexington, MA - Our Local Coverage Area
We’re based in the Lexington 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 About Air Duct Repair in Lexington
Homes in Lexington’s more rural pockets, especially those on gravel or unpaved roads, load ducts with fine road dust and wood-heat particulate at roughly two to three times the rate of homes in paved subdivisions. A realistic cleaning interval for those homes is every 2 to 3 years, not the 3 to 5 years common for newer suburban stock. If you burn wood as a primary or secondary heat source, inspect your return duct annually in the fall before the heating season starts. Call (980) 447-2498 and we’ll give you an honest assessment of your system’s actual condition.
Yes. We follow NADCA standards for source-removal cleaning and repair practices on every Lexington job, including the older 1955 – 1975 systems that make up most of this town’s housing stock. That means negative-pressure extraction with HEPA filtration, not just brushing debris around, and it means we repair or replace compromised duct sections during the same visit. For a free inspection and a written quote that meets NADCA standards, call (980) 447-2498.
Do not disturb it yourself. Asbestos-containing wrap was commonly used on horizontal supply runs in the ranch and split-level homes near Waltham Street and Peacock Farm, and disturbing it can release fibers into the air you breathe. Our crews run a pre-inspection asbestos checklist before any mechanical agitation, and when suspect material is found, we set up containment, wet-wrap the joints, and use low-agitation tools so the debris is removed without disturbing the wrap. The wrap is left intact or referred to a licensed abatement specialist, depending on its condition. Call (980) 447-2498 and we’ll walk you through exactly what we’d do at your home.
In most cases, yes. The problem in Lexington split-levels is usually that the original supply trunk was sized for the 1960s footprint, and a second-floor addition has doubled the demand on the same ducts. After confirming there’s no asbestos wrap in the runs, we camera-inspect the system, remove packed renovation dust, repair or replace collapsed flex connectors, and often add or upsize a supply run to the new space. The result is measurably better airflow to the upstairs registers. Call (980) 447-2498 for a camera inspection and written quote.
Duct sweating in a Lexington basement is almost always condensation forming on cold sheet metal that’s exposed to humid summer air, and it’s worse in older homes where the original seams and joints were never sealed to modern standards. Over time that moisture rusts boots, corrodes seams, and creates a recurring mold-growth vector inside horizontal runs. The fix is not just wiping the ducts down; it’s sealing the runs properly and repairing the rusted sections in the same visit. Call (980) 447-2498 for a humidity and duct inspection, and we’ll tell you exactly what’s needed in writing.
In Lexington’s Peacock Farm and Waltham Street mid-century ranch and split-level clusters, horizontal supply runs were commonly insulated with asbestos-containing wrap at boot and elbow connections. That means any mechanical agitation without containment risks fiber release, and it’s a recurring failure point in homes of that vintage. Our crews run a pre-inspection asbestos checklist and containment protocol before any agitation, a step rarely needed in newer subdivisions like Burlington. We were called to a 1962 split-level off Waltham Street where the second-floor addition had pushed renovation dust into the original sheet-metal supply and return ducts. A camera inspection showed the horizontal run had loose asbestos wrap at the boot and a 40 percent blockage of drywall dust. We set up negative pressure with HEPA filtration, wet-wrapped the suspect joints, and used low-agitation tools to remove the debris without disturbing the wrap. Then we replaced the failed elbow with a sealed Guardsman fitting and restored proper airflow to the upstairs registers. That’s the job done the way it should be in Lexington: documented, contained, and guaranteed.
Written by Marcus Veale, Owner at Linden Air Duct Cleaning, serving Lexington since 2004.