Are you trapped in your own business — working every hour, firefighting problems, and wondering why nothing runs without you? The Systems Handbook gives you the step-by-step blueprint to build systems, SOPs, and processes that let your plumbing and heating business run smoothly — even when you are not there.

If any of these sound familiar, you are not alone. Most plumbing and heating business owners hit a ceiling because everything depends on them. Without systems, you cannot step back, scale up, or take time off.
The Systems Handbook changes that. Written by Aaron McLeish, specialist accountant and founder of Together We Count, this book draws on years of hands-on experience helping trade businesses build the systems they need to grow.
This is not theory — it is a practical, proven framework built from real-world experience with plumbing and heating businesses just like yours.


Join hundreds of plumbing and heating business owners who have already used these strategies to systemise their operations, free up their time, and build businesses that work without them.
Follow the proven framework in The Systems Handbook and you will:
“I finally have systems in place that mean my business does not fall apart when I take a week off. This book is a game-changer for any plumber who wants to grow.”
— Plumbing Business Owner, Manchester
“The SOP templates alone saved me weeks of work. Aaron clearly understands the challenges trade businesses face.”
— Heating Engineer, Leeds
“I have been in the trade 15 years and wish I had built systems sooner. This book gives you everything you need to get started.”
— Gas Engineer & Business Owner
Aaron McLeish is a specialist accountant and the founder of Together We Count, an accountancy practice built specifically for plumbing and heating businesses. With years of hands-on experience helping trade business owners fix their finances, systemise their operations, and grow their profits, Aaron understands the unique challenges plumbers and heating engineers face every day.
The Systems Handbook is the second book in the Together We Build series — practical business guides written exclusively for the plumbing and heating industry.
Buy on Amazon — Kindle & Paperback
The Quote Handbook — Stop undercharging and start winning more work at better margins. The essential pricing and quoting guide for plumbing and heating businesses. Available on Amazon.
It is written specifically for plumbing and heating business owners who want to build systems, SOPs, and processes that let their business run without them. Whether you are a sole trader looking to hire your first employee or a growing company with a team, this book will help you systemise your operations.
Not at all. The systems and SOPs in this book are designed to be simple, practical, and easy to implement — no specialist software or technical skills required.
Most plumbing and heating businesses have some processes, but few have documented, repeatable systems. This book will help you identify the gaps and build a complete framework that your team can follow consistently.
The Systems Handbook is available on Amazon in Kindle, paperback, and hardcover formats. Order Kindle & Paperback or Order Hardcover.
Unlike general business guides, The Systems Handbook is written exclusively for the plumbing and heating industry. Every example, template, and strategy is tailored to the way trade businesses actually work.
Stop doing everything yourself. Get The Systems Handbook today and start building the systems, processes, and SOPs your plumbing and heating business needs to grow.