See what comes out of a duct

Anyone can say they do thorough work. These are real photos from Bison Maintenance Services jobs around Winnipeg and Manitoba — the same before-and-after shots we take on your system and show you when we're done.

Before & after

Recent jobs

Captions describe exactly what you're looking at — every photo on this page is an unedited job site, not stock photography.

Before and after air duct cleaning in a Winnipeg home: a joist-panned return duct thick with grey dust and lint on the left, the same duct clean with bare wood and metal visible on the right — Joist-panned return duct
Years of packed dust and lint pulled out of a return running between floor joists — common in older Winnipeg homes.
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Before and after duct cleaning showing a large rectangular trunk duct with a pile of dust and tangled hair on the left, and the same trunk duct clear and clean on the right — Main trunk line
Debris and hair build-up cleared from a main trunk line — the section a quick shop-vac pass never reaches.
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Before and after cleaning of a duct boot filled with sawdust and construction debris on the left, cleaned down to bare galvanized metal on the right — Post-renovation clean-out
Sawdust and construction debris removed from a duct boot — renovation dust goes straight into open ductwork.
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Before and after cleaning of a rectangular floor register duct boot containing dirt and debris on the left, and the same boot cleaned on the right — Floor register boot
Register boots collect whatever gets swept or dropped into the vent. Every register gets pulled and cleaned.
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Interior view down a round metal duct after cleaning, showing clean bare metal walls and a flexible connection at the far end — Finished round duct
The inside of a round run after cleaning — bare metal, no dust film left on the walls.
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Before and after cleaning of a duct boot built into a wall stud cavity: thick grey dust packed solid across the opening on top, the same cavity cleared back to bare metal and framing below — Wall-cavity duct boot
A duct boot built right into a wall stud bay, packed solid with years of dust — cleared back to bare metal.
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Before and after view down a joist-panned duct run in a Winnipeg home: dust coating the wood surfaces and floor register boot on the left, the same run visibly cleaner on the right — Joist bay duct run
Another joist bay pressed into service as ductwork — dust cleared from the wood surfaces and the register boot along the run.
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Before and after cleaning of a rectangular-to-round vent transition box: the round opening packed with loose debris on the left, the same box and pipe cleared out on the right — Vent transition box
A rectangular-to-round transition box cleared of packed debris — the kind of connection point that traps buildup out of sight.
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What to expect

The same on every job

A price agreed before any work starts, and that's what you pay
Photos of your own system, before and after
A plain-language explanation of what we found and what we did
No upsells mid-job and no surprise line items
We clean up after ourselves before we leave

Customer reviews

We keep our reviews on Google, where they're verified and you can see every one of them — good or bad.

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Want your ducts to look like the “after” photos?

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