Meet the inventor...
Mark Williams, founder of Block Master® — designed by a bricklayer, for bricklayers

Hi, I’m Mark — the inventor behind Block Master® and Spotbord®. I’ve been a bricklayer for over 28 years, working across the UK, the Channel Islands, and even Australia. Through decades on site, one thing has always stood out: cutting blocks is awkward, time-consuming, and can feel like wasted effort — especially when you’re paid by the square meter.
The Problem That Sparked the Solution
Every time I had to put down my trowel, set up a machine, or climb up and down scaffolding to cut blocks, I knew there had to be a better way. On many jobs, time is money — and the usual methods were slowing me down.
After years of trial, error, and countless designs, I finally developed the Block Master® — a simple, practical tool that cuts your block cutting time in half and works in almost every situation.

How Block Master® Changes the Game
• Cut blocks quickly and cleanly, without flipping them over. Ideal for awkward cuts like gable ends or footings out of level.
• Work comfortably at height. No need to climb down to the ground to cut — just place the tool on your stack and go.
• Versatile on all block types. From solid concrete blocks to Thermalite and bricks, the tool adapts.
•Patent-pending and designed for builders by a builder. We’re still discovering new uses for it!
The Journey Continues
Block Master® is more than a tool — it’s a reflection of years of experience, frustration, and determination to make builders’ lives easier. We’re proud to be UK-made and committed to quality, innovation, and real-world performance.