Fast, Reliable HVAC Cleaning Across Lexington
HVAC cleaning in Lexington, Massachusetts typically runs $280-$650 for a full system service, and most jobs are completed in a single visit. We serve both ZIP codes, 02420 and 02421, with technicians who know the difference between a Peacock Farm ranch and a 1970s split-level off Waltham Street.
We’ve been driving to Lexington since 1984. Our office answers calls live, 24 hours a day, at (844) 685-6342. If you’re on Marrett Road or tucked back in Follen Hill, we’ll be there when we say.
Why Bellows Air Duct & Vent Co. Is Lexington’s Preferred HVAC Cleaning Company
Lexington homeowners don’t call us for coupons. They call because their neighbor on Pleasant Street did, or because a blow-and-vac crew left their allergies unchanged. We’re the square-deal alternative: one honest price shown before we start, camera-verified results every time, and our 90-Day Done Right Promise in writing.
Our HVAC Cleaning team knows Lexington’s housing stock intimately. The town’s suburban boom from the 1950s through the 1970s left thousands of ranch, Cape Cod, and colonial-revival homes with original sheet-metal ductwork that has been spliced, extended, and rerouted through finished basements, kitchen expansions, and added master suites. That complexity demands more than a truck-mounted vacuum hose. It demands flexible rod systems, HEPA containment, and technicians who understand what they’re looking at before they touch a tool.
Every technician is background-checked and uniformed. Every job is camera-inspected before and after. And if something isn’t right, we return at no charge with no paperwork. We’ve operated this way for over 42 years.
Our HVAC Cleaning Services in Lexington
Evaporator Coil Cleaning
Lexington’s humid continental climate means your evaporator coil works overtime from June through September. When condensation mixes with pollen drawn in during those mild April and May days with windows open, the coil becomes a breeding surface for biofilm. A typical evaporator coil cleaning in Lexington runs $180-$320. We use foaming cleaners from Abatement Technologies and verify the full fin surface with our camera before we close the access panel.
Blower Cleaning
The blower assembly in a Lexington home moves air through ductwork that may be 50 years old and patched across three renovation generations. Dust loading on the blower wheel reduces airflow and strains the motor. Blower cleaning in Lexington typically costs $150-$275. We remove the assembly when access allows, clean the wheel and housing, and check for vibration or bearing wear while we’re in there.
Condenser Cleaning
Your outdoor condenser faces Lexington’s dense mature-deciduous tree canopy. Spring pollen, summer cottonwood, and autumn leaves restrict airflow and raise head pressure. Condenser coil cleaning runs $120-$220 in Lexington. We fin-comb damaged coils and verify refrigerant pressures before we leave.
Air Handler Cleaning
Air handlers in Lexington’s older homes often sit in unfinished basements or converted crawl spaces where moisture and temperature swings create conditions for microbial growth. Air handler cleaning, including the cabinet, drain pan, and secondary components, typically runs $200-$380. We treat drain pans with antimicrobial agents from Guardsman and verify condensate drainage.
Heat Exchanger Cleaning
Furnace heat exchangers in Lexington’s 1950s-70s housing stock have endured decades of thermal cycling. Soot and corrosion reduce efficiency and can create dangerous combustion conditions. We inspect heat exchangers with cameras and clean when accessible, with typical Lexington pricing at $160-$290. If we find cracks or deterioration, we’ll show you the image and explain your options without pressure.
Coil Treatment
For Lexington homes with recurring biofilm issues, we apply EPA-registered coil treatments that inhibit microbial regrowth for up to six months. This is particularly effective in homes with uninsulated basement duct runs that see summer condensation. Coil treatment as a standalone service runs $140-$240, or can be bundled with full system cleaning.
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 Lexington
We clean systems built with Aprilaire, Honeywell, Carrier, Trane, Lennox, and many others. Our trucks carry Rotobrush flexible rod systems and Nikro HEPA vacuums, the same equipment serious restoration contractors specify. For Lexington homeowners, this means we don’t need to order parts or rent specialty gear. We arrive equipped for your specific system configuration, whether it’s a standard split system on Bedford Street or a complex zoned setup in a renovated Follen Hill colonial.
Common HVAC Cleaning Problems We See in Lexington Homes
- Blow-and-vac services miss debris trapped in dead-end branches. Lexington’s renovated homes have duct systems that were spliced and extended through multiple renovation generations. A truck-mounted vacuum pulls from the main trunk but never reaches the debris trapped where a 1980s kitchen expansion created a boxed-in dead end.
- Rigid brush equipment cannot access duct sections boxed in by finished basements. In Peacock Farm and similar neighborhoods, floor cavities are shallow and trunk lines were later enclosed. Standard rotary brushes won’t bend through the access points that remain. Our Rotobrush FlexRods navigate these constraints.
- Standard cleaning fails to address biofilm in uninsulated sheet-metal ducts. Lexington’s humid summers create condensation on cold duct surfaces in basement and crawl-space runs. Without proper antimicrobial treatment, the biological film returns within weeks of a superficial cleaning.
- Successive renovations have created incompatible duct sizes and materials. We’ve found 1960s galvanized trunk lines connected to 1990s flex duct with inadequate support, creating sagging sections that trap debris and restrict airflow. Cleaning without addressing these structural issues wastes the customer’s money.
Pricing for HVAC Cleaning in Lexington, MA
| Service | Typical Range in Lexington |
|---|---|
| Full HVAC system cleaning (coils, blower, air handler) | $280-$650 |
| Evaporator coil cleaning | $180-$320 |
| Blower cleaning | $150-$275 |
| Condenser cleaning | $120-$220 |
| Air handler cleaning | $200-$380 |
| Heat exchanger cleaning | $160-$290 |
| Coil treatment (standalone) | $140-$240 |
What moves you within these ranges? System accessibility is the main factor. A furnace in an open Lexington basement costs less to service than one behind a finished wall in a converted Peacock Farm lower level. We disclose your exact price before we start. No bait coupons, no changes at the door. Seniors and veterans receive a permanent 5% discount. Call (844) 685-6342 for a free estimate.
We Also Serve Cities Near Lexington
Our technicians regularly work in Lexington and the surrounding towns: Arlington, Bedford, Winchester, and Burlington. The same upfront pricing, camera verification, and 90-Day Done Right Promise apply whether we’re on your street or one town over.
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 - HVAC Cleaning in Lexington
A blow-and-vac service pulls air from the main trunk line but cannot reach debris trapped in dead-end branches created by decades of splices and extensions. In Lexington’s 1950s-1970s housing stock, original ductwork has been rerouted through finished basements, kitchen expansions, and added master suites, creating complex networks with inaccessible sections. We use Rotobrush FlexRods and Nikro HEPA vacuums to navigate these constraints. Call (844) 685-6342 for a free estimate.
Yes. We apply antimicrobial coil and drain pan treatments specifically formulated for humid continental climates like Lexington’s, where uninsulated sheet-metal ducts in basement runs condense moisture during summer months. The treatment inhibits biofilm regrowth for up to six months. For persistent moisture problems, we’ll show you the camera evidence and discuss options. Call (844) 685-6342.
Yes. We serviced a Cape Cod on Peacock Farm Road where a 1966 sheet-metal system had been spliced into a finished basement rec room; the added return branches dead-ended behind drywall, trapping debris. Using our Rotobrush FlexRods and a Nikro HEPA vac, we cleared three blocked branches that a blow-and-vac crew had missed, reducing the homeowner’s allergy symptoms within days. Shallow floor cavities and boxed-in trunk lines are exactly why we carry flexible rod systems. Call (844) 685-6342 to discuss your access constraints.
Yes, and your situation is common in Lexington. Successive renovations often connect incompatible duct sizes and materials, creating sagging flex sections and debris traps. We camera-inspect the full system first to map the patches and identify structural issues that cleaning alone won’t fix. We’ll show you what we find and give you an honest assessment before we proceed. Call (844) 685-6342 for a free estimate.
Lexington’s dense mature-deciduous tree canopy produces heavy spring pollen loads, and residents opening windows during mild April and May days draw significant allergen accumulation directly into return-air systems. Our full cleaning removes accumulated pollen, dust, and biological material from coils, blowers, and accessible ductwork, and our HEPA containment prevents redistribution during the process. We also offer coil treatments that reduce the biological surfaces where allergens collect. Call (844) 685-6342 to schedule before peak pollen season.
If your Lexington home has ducts that haven’t been properly cleaned, or you’ve been disappointed by a previous service, call Bellows Air Duct & Vent Co. at (844) 685-6342. We’ll answer live, schedule at your convenience, and show you exactly what we find before we start. One honest price. Camera-verified results. Backed in writing for 90 days.
Written by Ray Castillo, Owner at Bellows Air Duct & Vent Co., serving Lexington since 1984.