Tap the closest one and it fills in the message for you.
Tanks and boilers in mechanical rooms, radiant loops in new slabs, rough-in for whole houses, and underground work before the concrete goes down.
Finding it first, then fixing it. Burst pipes, slow leaks, and the ones staining a ceiling.
Repair, servicing and replacement. Most of our reviews are about boilers.
Replacement and repair, residential and multi-unit.
New loops in a slab, and diagnosing a zone that has gone cold.
Blockages, slow drains and drainage rough-in.
Supply and waste for houses and commercial units, from underground up.
Copied word for word from Google.
“Our boiler had gone down in the worst possible time we did not have any heat, after calling a few companies and earliest booking was 1-2 weeks away we gave up and decided to search locally. Called Onyx plumbing and they were able to send a tech down same day within 2 hours.”SandeepGoogle review, January 2024
“As someone who is older and knows nothing about plumbing Karn took the time to explain everything that he was going to do and he told me upfront what the price was going to be. No surprises.”Sue GauthierGoogle review, March 2024
“Karn was amazing. Needed some urgent work done and he came over right away to fix it. Not only was he truly professional, he was friendly, and had amazing customer service. He even followed up a week later to make sure everything was still good. Even recommended him to my neighbours when they needed a plumber. Thanks Karn!”parm baraichGoogle review, July 2023
This arrives on Karn's phone as a WhatsApp message with the address and the problem already written in.