The drain cleaning specialists
It is a dirty job and someone has to do it
The rest of that line is lettered on the truck: let it be Groess. It has been there longer than any website, and it is a fair summary of the business.
A specialist, not a general shop
Most plumbing companies will run a cable down a drain. Fewer of them own a camera, a locator and a high pressure flushing rig, and fewer still are set up to take those things out to a property in Barriere or Cache Creek on a Tuesday.
That is the whole position of this business. Steam flushing, video inspection, defect and line locating, root cutting and frozen line thawing are the jobs a general plumber refers out. Residential, commercial and industrial, as it says on the side of the truck.
Eco friendly, and specific about it
A Groess Underground describes itself as an eco friendly small business, and has been a finalist for Business Excellence Awards in both the Environmental and the Excellence in Trades categories. High pressure water cleaning is part of that: it is a mechanical process, and it does not need the line filled with chemicals to work.
The record
- Eco friendly small business
- Kamloops Business Excellence Awards finalist in 2023, 2024 and 2025
- Community Futures Thompson Country success story
- Runs an annual community cleanup in Kamloops
What customers talk about
The topics Google's own profile analysis pulls out of the reviews, with how many mention each. Their words, not ours.
- drain cleaning · 3
- drains · 3
- efficiency · 3
- identified problem · 2
- camera · 2
- pricing · 2
- quote · 2
- reliable · 2
The community cleanup
Eleven years of picking up after Kamloops
The annual community cleanup has run for eleven years, organised by a drain company, which tells you something about how the business sees the town it works in. It is also the reason A Groess Underground turns up as a Community Futures Thompson Country success story rather than only as a line in a trades directory.
In the news
What other people have written about the business. Their headlines, not ours.
Dentures to deodorant: How a Kamloops Sewer Hero deals with what's flushed
A feature interview with Dan on what ends up in Kamloops sewer lines, why flushable wipes cause backups, and the time a customer got his dentures back.
Breaking the Ice: Kamloops Game Changers Society highlights mental wellness in sports at inaugural gala
Dan, as president of the Kamloops Game Changers Society, on its first gala for mental wellness in sports.
Amewzing rescue: plumber and daughter save Kamloops kitten stuck in pipe
Dan and his seven-year-old daughter lowered the sewer camera down a pipe with a T-shirt tied to it, and the kitten climbed on. The family adopted him a month later.
Also covered by Global News, Castanet, CFJC Today, iNFOnews, Vancouver Is Awesome, Yahoo News.
Kamloops Business Excellence Awards
Run by the Kamloops and District Chamber of Commerce. A finalist three years running.
- 2025Finalist for Community Service, Environmental Leadership and Excellence in Trades. Nominated in six categories, including Dan for Business Person of the Year. Castanet
- 2024Finalist for Excellence in Trades. Business Examiner
- 2023Finalist for Community Service and Excellence in Trades. Business Examiner
Where to start
If something is backing up, call now. If you are buying a house, book a camera inspection during the inspection period. If a line keeps blocking no matter how many times it gets cabled, read the steam flushing page, because that is the one that explains why.
Or just call 250-377-5364 and describe it.