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 Cleaning Across Lexington
Air duct cleaning in Lexington, MA typically costs $400 – $750 for a full residential system and is scheduled by appointment with written pricing confirmed before any work begins. Our crews serve Lexington from our Boston office, dispatching background-checked, uniformed technicians to neighborhoods from the Battle Green historic district to the post-war ranches along Woburn Street and the capes near Lexington High School. We know the town’s housing stock inside out: the 18th-century colonials with galvanized ductwork retrofitted into original flues, the 1960s split-levels with crushed flex runs in unconditioned attics, and the specific pollen load that Lexington’s dense oak and maple canopy drops into vents every spring. If you’re ready to book, call (361) 326-5060. A live person answers, 24 hours a day.
Why Hollis Air Duct Cleaning Is Lexington’s Preferred Air Duct Cleaning Company
We’ve been part of the Garrison Partners family since 2004, and our Lexington customers return because we put the price in writing before we touch the system and stand behind the work for 365 days. Our Air Duct Cleaning team follows The Garrison Standard on every job: arrive inside the quoted window, price it before we start, complete it by the book, leave the site clean.
Lexington homeowners aren’t looking for the cheapest coupon in the mail. They’re looking for a crew that won’t track debris through a restored colonial, won’t invent a new price at the door, and won’t disappear if mold comes back six months later. Our 365-Day Done Right Promise covers exactly that: if the work fails within a year, we return and make it right at no charge, including a free second visit. No negotiation, no runaround.
Our technicians carry Rotobrush rotary systems and Nikro negative-air machines – the same equipment commercial crews use – and we explain what each tool does while it’s running. Calls are answered by a live person, not a voicemail loop. That’s not a perk; it’s how we operate.
Ductwork Cleaning in Lexington
Ductwork Cleaning in Lexington means more than pushing a brush through visible vents. Most homes here have decades of accumulation in supply and return runs, and the real problem is often what you can’t see: corrosion inside original galvanized ductwork, crushed flex connectors in hidden chases, or disconnected runs bleeding conditioned air into walls and basements.
Our process starts with a camera inspection to map what we’re dealing with. We then seal the system, apply negative pressure with HEPA filtration, and use mechanical agitation to free debris from duct walls without damaging fragile original materials. In Lexington’s historic districts, this matters. Aggressive cleaning can crack historic plaster or disturb asbestos-wrapped pipes if the technician doesn’t know what to look for first.
Supply and Return Duct Cleaning
Supply ducts push conditioned air into your rooms; return ducts pull it back to the air handler. Both sides need cleaning, but the return side usually holds more debris because it’s the intake path. In Lexington’s older homes, return paths often run through original flues or hidden chases that weren’t designed as ducts, making access and cleaning more involved than in newer construction.
Full System Cleaning with Sealing
Cleaning without sealing is temporary. In Lexington’s humid summers, unsealed ducts condense moisture that feeds mold growth. We often find that the real fix is duct sealing with mastic after cleaning, especially in pre-1900 homes and 1950s – 70s ranches with deteriorating joints. Sealing stops the conditions that created the problem.
Air Duct Inspection in Lexington
Air Duct Inspection in Lexington should happen before any cleaning starts, and it’s especially critical in homes built before 1970. Our video inspection uses a lighted camera to document the interior condition of every accessible run: corrosion depth, debris volume, disconnected joints, mold presence, and any asbestos-wrapped pipes or historic plaster that limits how we can clean.
The inspection gives us the facts we need to price the job accurately and in writing. No surprises at the door. For Lexington’s historic-district homes, it also identifies whether exterior vent modifications will trigger permitting requirements, which changes the scope and timeline.
Video Documentation
We record what the camera sees and show it to you. You’ll see the oak pollen caked onto galvanized walls, the crushed flex behind the plaster, the corrosion pitting that explains why airflow has dropped. This isn’t sales theater; it’s how we agree on what needs doing and what it will cost.
Permit and Scope Planning
When our inspection finds that sealing a disconnected run requires a new exterior termination, we flag whether Lexington’s historic-district oversight or zoning rules require town approval. We build that timeline into the project plan so you’re not waiting on a permit we didn’t anticipate.
Trusted Brands We Service in Lexington
Our equipment roster includes Rotobrush rotary brush systems for mechanical agitation, Nikro negative-air machines for controlled debris removal, and filtration products from Honeywell, Aprilaire, and Guardsman. These are professional-grade tools, not hardware-store gear, and our technicians train on them specifically. For Lexington customers, this means we stock the parts and accessories to complete most jobs without ordering delays. If your system uses a specific filtration brand or has proprietary fittings, we likely have the adapter or replacement on the van. Fast turnaround matters when you’re scheduling around work and family, and we don’t waste your time with multiple visits for parts.
Common Air Duct Cleaning Problems We See in Lexington Homes
- Original galvanized ductwork corroding internally. Common in 1950s – 70s ranches and capes, this corrosion traps debris and restricts airflow. A surface cleaning won’t reach the pitting; we use rotary agitation and inspect with a camera to confirm we’ve cleared it.
- Return-air paths through original flues and hidden chases. In Battle Green and other historic districts, these retrofitted paths collect decades of fine organic debris. Cleaning requires negative-pressure containment and careful tool selection to avoid damaging historic plaster or disturbing asbestos-wrapped pipes nearby.
- Condensation and mold in unsealed ducts. Lexington’s humid summers and cold winters create temperature differentials that produce moisture inside poorly insulated runs. Cleaning removes the mold, but sealing with mastic stops it from returning.
- Heavy pollen and leaf-litter accumulation from mature canopy. No surrounding town has Lexington’s combination of dense oaks and maples with preservation rules limiting their removal. Exterior vents pull in fine organic particles every spring and fall, and they stick to duct walls until mechanical agitation frees them.
Pricing for Air Duct Cleaning in Lexington, MA
A typical residential ductwork cleaning in Lexington runs $400 – $600 for a standard system up to about 15 vents. Larger homes, commercial systems, or jobs requiring extensive sealing work range from $600 – $750. Air duct inspection with full video documentation is usually $150 – $250, and we apply that toward the cleaning if you proceed.
What moves the price: system size, accessibility (crawl spaces and original chases take longer), condition of the ductwork (heavy corrosion or mold requires more labor), and whether sealing work is needed after cleaning. We do not price per vent. One flat price per system, agreed in writing before we start. No add-ons at the door.
Call (361) 326-5060 for an exact quote. Estimates are free, and we can often schedule an inspection within a few days.
We Also Serve Cities Near Lexington
Our Air Duct Cleaning in Lexington crews also work in Woburn, Winchester, Burlington, and Arlington. Each community has its own housing stock and conditions, and we adjust our approach accordingly. Scheduling and dispatch are coordinated from our Boston office.
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 Cleaning in Lexington
Yes, but it requires camera inspection first and controlled agitation methods, not aggressive brushing. In the Battle Green area, our crew cleaned a 1790s colonial where a return-air path ran through an original flue and hidden chase behind historic plaster; a camera inspection found the flex connector at the air handler crushed flat, and the supply and return ducts carried decades of fine oak pollen caked onto galvanized walls. We set up negative pressure with HEPA filtration, used agitation tools to free the debris, and resealed the crushed run, without disturbing the plaster or the asbestos-wrapped pipe near the basement chase. Call (361) 326-5060 if your home is in a historic district – we’ll scope the access before we quote.
Lexington’s dense canopy of mature oaks and maples produces an unusually heavy pollen and seed-pod load, and preservation rules limit how much homeowners can cut back. Exterior vents draw in fine organic particles during the short, intense spring and fall seasons, and they adhere to duct walls, especially in humid conditions. Regular cleaning removes the accumulation; sealing the system reduces how much new debris enters. Call (361) 326-5060 to schedule an inspection and see what your ducts are holding.
Yes, if the ducts are structurally intact. Original galvanized ductwork in Lexington’s mid-century homes often corrodes internally, trapping debris and restricting airflow. Camera inspection tells us whether the metal is sound enough to clean or whether replacement sections are needed. Cleaning restores airflow and removes the debris load; sealing prevents recurrence. We’ve restored performance in dozens of Lexington ranches without full replacement. Call (361) 326-5060 for an inspection and honest assessment.
Often yes, especially in historic districts. Lexington’s preservation oversight means exterior vent or flue modifications frequently require town approval, so duct work that needs a new outside termination – common when sealing disconnected runs in pre-1900 homes – has to be scoped around permitting, not just HVAC labor. We identify this during our inspection and build the permit timeline into the project plan. Call (361) 326-5060 and we’ll check your property’s district status during the estimate.
We show you. Our video inspection records the before condition, and we re-camera key runs after cleaning so you can see the difference. We also provide before-and-after photos of your own ductwork, not stock images. The 365-Day Done Right Promise backs this up: if airflow doesn’t improve or debris returns because we missed something, we come back at no charge. Call (361) 326-5060 to book an inspection with full documentation.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Lexington and surrounding communities.