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.
Fast, Reliable Air Duct Cleaning Across Marlborough
Air duct cleaning in Marlborough typically runs $450-$900 for a full system on a standard single-family home, and most jobs are completed in four to seven hours. The price depends on how many duct runs your house has, how accessible they are, and whether you’re dealing with the retrofit-era ductwork common near downtown or the purpose-built forced-air systems in the Route 20 neighborhoods. Our Air Duct Cleaning team works throughout Marlborough with a written price delivered before any panel comes off. Call (806) 606-6902 and you’ll get the same price in writing before we schedule the visit.
Marlborough’s housing stock tells two different stories depending on which side of the city you live in. Homes near East Main Street and the downtown core often carry pre-1930s bones with ductwork added decades later as an afterthought. Out along Route 20 toward the Northborough line, you’ll find 1960s and 1980s ranches and split-levels built with forced air from day one. We know both types, and we know what accumulates inside each.
Why CleanRun Air Duct Cleaning Is Marlborough’s Preferred Air Duct Cleaning Company
CleanRun has been documenting the inside of ductwork since 2013, and Marlborough homeowners tend to appreciate a company that shows its work rather than just describing it. Every job here comes with a photo record of every duct run, before and after. You’ll see the inside of your return plenum with the camera, not a technician’s word for it. That’s the H.A.V.E.N. Standard’s Documentation clause in practice, and it’s been the same since our first job.
Our crews work the older downtown-side neighborhoods regularly, which means we arrive already knowing what a 1920s colonial on Bolton Street or a triple-decker off Lincoln Street is likely to hide above the basement ceiling. That local familiarity saves time and prevents surprises. Tomas Reyes runs our operations, and every technician who shows up at your door is background-checked, uniformed, and identified by name before arrival. We don’t send someone you can’t account for.
Homeowners in Marlborough read estimates carefully. You bought at a high price point, and you want evidence before spending more on the house. That’s why our written price comes before work begins, and why we’ll put our number next to any competitor’s written quote at no cost. No bait pricing. No per-vent games. One flat price for the system, agreed in writing.
Our Air Duct Cleaning Services in Marlborough

Residential Duct Cleaning
Most Marlborough homes need a full-system residential clean, especially if the ducts haven’t been opened since the previous owner moved in. We run negative-pressure HEPA extraction with rotating agitation tools to break debris loose from the duct walls before pulling it out. The result is source removal, not just a surface dusting. In a split-level off Route 20, that usually means a straightforward four-to-six-hour job. In a downtown colonial with retrofit flex duct, it can take longer, but you’ll see the before-and-after photos either way.

Commercial Duct Cleaning
Office and retail spaces along Route 20 and in the Marlborough business parks have their own accumulation patterns: high foot traffic, open doors, and HVAC systems running year-round. We clean supply and return runs in commercial properties with the same documented photo record you’d get on a residential job. If you manage a property in Marlborough, you’ll get a written scope and a written price before we touch a single ceiling tile.

Supply Duct Cleaning
Supply ducts carry conditioned air from your furnace or air handler to each register. In Marlborough’s inland climate, where heating runs hard from November through April, supply ducts collect a fine film of dust and, often, mold spores that thrive in the humidity swings between dry winter air and muggy summer air. We clean supply runs from the plenum to each register boot, and we photograph the register side so you can see what came out.

Return Duct Cleaning
Return ducts pull air from your rooms back to the air handler, and they’re where we find the heaviest buildup in Marlborough homes, especially near downtown. Older returns were often under-sized for the airflow they now carry, which means more debris drops out of the airstream and settles in the low spots. Return duct cleaning is the single highest-impact service we offer for improving airflow in retrofit systems. If your second-floor rooms never seem to get warm enough, the return side is usually part of the story.

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.
Before
AfterTrusted Brands We Service in Marlborough
We run professional-grade equipment from Rotobrush and Abatement Technologies, and we use Guardsman filtration where the job calls for it. These are brands you can look up independently before you agree to a price, and that’s the point. When a technician arrives at your Marlborough home, you should know what tools are coming through your door. We stock common filter sizes and duct components locally so replacements don’t mean a second visit days later. If your system uses a Nikro-compatible HEPA unit or an Aprilaire filter housing, we’re set up for it.
Common Air Duct Cleaning Problems We See in Marlborough Homes

- Retrofit-era flex duct in no-access cavities. Homes near East Main Street and downtown commonly have 1970s flex duct spliced onto original octopus-furnace sheet metal in basement ceilings with no cleanout panel. Standard negative-pressure cleaning can’t reach those runs without creating temporary access, and skipping that step leaves the source in place.
- Hidden flex-duct tears recirculating debris. A 50-year-old flex run can tear behind a wall chase, and the tear pulls attic or basement air into the supply stream. Camera inspection catches this. A shop-vac-and-coupon clean won’t even look for it.
- Moisture trapping debris against the air handler. Marlborough’s summer humidity regularly causes condensation inside poorly sealed ducts, and that moisture bonds dust into a mat that sticks to the duct walls. Fogging a sanitiser over that mat without removing it doesn’t stop microbial growth. It adds a smell and a bill.
- Loose-fill attic insulation infiltrating older runs. Homes that still carry 1970s loose-fill insulation in the attic often find it inside the top-floor supply ducts, especially where flex connections have loosened over time. That material needs careful extraction, not just vacuuming, because it can include particles you don’t want blown into living spaces.
Pricing for Air Duct Cleaning in Marlborough, MA
A full-system residential duct cleaning in Marlborough runs $450-$900 for most single-family homes. Homes under 1,200 square feet with straightforward access typically land near the low end. Retrofit-era homes near downtown with limited access panels, long flex runs, and heavy debris often land near the high end. A commercial clean is quoted by the property. We don’t price per vent and we don’t run coupon specials. The written price you agree to before work begins is the price you pay after the job is documented. Haven Standard Clause 1 is the rule, not a marketing line.
We Also Serve Cities Near Marlborough

While this page covers Air Duct Cleaning in Marlborough specifically, our crews also work in Framingham, Shrewsbury, Natick, and Wellesley. If you’re in one of those towns, the same written pricing and documented photo record applies.
Serving Marlborough, MA - Our Local Coverage Area
We’re based in the Marlborough 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 - Air Duct Cleaning in Marlborough

Most Marlborough homes should have a full duct cleaning every three to five years, and homes with retrofit ductwork near downtown should lean toward every three. Your heating system runs five to six continuous months here, and that sustained runtime means more particulate moving through the ducts and more settling in the low spots. If you have pets, kids, or a renovation in your history, shorten the interval. Call (806) 606-6902 and we’ll tell you what we’d do in your specific house after looking at the system.
Because the ductwork was added to houses that were never designed for it. Pre-1930s worker housing near downtown originally used steam or gravity hot-water heat, and when forced air went in during the 1970s, installers stuffed flex duct into tight basement ceiling cavities and wall chases with no cleanout access and often no sealing. Those snaking, under-sealed runs accumulate debris faster than the straight, purpose-built sheet-metal runs in a 1970s ranch off Route 20. The airflow is slower in those retrofit runs, so more dust drops out before it reaches the register.
We cut a temporary cleanout at a strategic point, usually in the basement ceiling where the flex splice is accessible, then run negative-pressure HEPA filtration with rotating agitation tools through that access point. The agitation breaks the bonded debris loose from the duct walls, and the negative pressure pulls it out to the HEPA filter rather than blowing it into the room. We patch and seal the access point cleanly when we’re done, and we photograph the inside of the run before and after so you can see what was actually removed. This is standard practice in Marlborough’s older housing stock.
No. Fogging a sanitiser or biocide into a duct system without physically removing the moisture-trapping debris does not stop mold growth. Marlborough’s humidity swings create condensation inside poorly sealed ducts, and that condensation bonds dust and organic material into a mat against the duct walls. The mold lives in that mat. Fogging adds a chemical smell and a line item. Source removal, which means pulling the mat out with agitation and negative-pressure extraction, is what actually changes the condition inside the duct. If you’re quoted a fogging service as a mold fix, get a second opinion. You can bring that quote to us and we’ll put our number next to it in writing, free.
We extract it carefully with HEPA-filtered negative pressure and documented containment so it doesn’t get blown into living spaces during removal. Loose-fill insulation from the 1970s can contain materials you don’t want circulating through your supply registers, so we don’t just vacuum it out and call it done. We verify the run is clear with the camera, seal any flex connections that allowed the insulation in, and photograph the result. This is a common find in Marlborough homes that still have original attic insulation, and handling it properly is part of the job, not an add-on.
Get a Written Price for Air Duct Cleaning in Marlborough
If you’re in Marlborough and your ducts haven’t been opened in years, you probably already know what your registers look like. The inside of the system is usually worse, and you can’t clean what you can’t see. We’ll give you a written price before any work starts, photograph every duct run before and after, and back the whole job with the 365-Day Done Right Promise. Call (806) 606-6902 to talk through your system. No per-vent pricing, no fogging upsells, no surprises. Just a documented record of what was in your ducts and what we removed.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning, serving Marlborough with documented ductwork results since 2013.




Before
After
Before
After