The UK plumbing and heating sector is a major part of the economy, and the ONS has published data on plumbing and heating enterprises, employment and turnover as recently as January 2026. Most firms are small businesses, often owner-managed, and a plumbing business can turn over well while leaving modest profit once materials, subcontractors, fuel, tools, insurance, wages, VAT and tax are accounted for.

Many plumbers grow beyond plumbing work into heating work, boilers, drainage, bathrooms and renewable technologies, and as plumber accountants we know what that means for your accounts, which is often when a growing plumbing business first turns to accountants for proper support. We help you pick the right accounting software and structure your accounting services around how you actually work.

Plumbing-related construction work can fall under the VAT domestic reverse charge, and the right treatment depends on who you are working for, whether that is a domestic customer, a commercial customer, a contractor, a subcontractor or the end user. We help you choose between the standard VAT scheme and the Flat Rate Scheme, and check whether reduced-rate VAT applies to a job.

Under the reverse charge, the customer accounts for the VAT instead of you, which affects how much cash lands in your bank account. We handle your VAT returns and make sure every invoice carries the right VAT treatment, keeping your accounts accurate throughout the quarter, and we file your quarterly VAT returns without you having to chase us.

Plenty of plumbers undercharge without realising it, because the price on the invoice does not always reflect fuel, van costs, tools and the time spent processing invoices and managing finances afterwards. We help you work out your real hourly cost, so your call-out rates and fixed-price jobs leave a proper profit.

Good bookkeeping services and simple expense tracking help you see which jobs make the most money, so you get a clear picture of your income instead of guessing, and can focus on winning the next job.

Plenty of plumbers start out as a sole trader, and for a one-van operation that is often the right call. As turnover grows and you take on subcontractors or your first employee, moving to a limited company can become more tax-efficient, and if you have outgrown your current accountants, moving to Vexo is simple.

We walk you through what that means for your income, including Corporation Tax, your director's salary, and how dividends fit in. Growing from a sole trader with one van to a company with several engineers changes your payroll, VAT position, Corporation Tax, and cash flow all at once, so we plan the move with you.

As specialist accountants for plumbers, we cover everything from day-to-day bookkeeping to year-end accounts, keeping your accounts current all year round. Our accounting services for plumbers and wider services for plumbers flex as your business changes, whether you are a self-employed plumber or run a small team.

Here's a quick summary of what our accounts and compliance work covers:

• Monthly bookkeeping and cloud accounting software so your accounts stay current
• VAT returns filed on time, with the right VAT treatment applied
• CIS returns, subcontractor statements and CIS compliance handled for you
• Payroll, pensions and payslips for your team
• Self assessment tax return or year-end accounts and Corporation Tax, done properly
• Ongoing compliance checks so your finances and annual accounts stand up to scrutiny

If you would rather speak to accountants for plumbers than fill out a form, our expert team is on hand to talk through your accounts and finances, whatever stage your plumbing business is at.

If you want accountants for plumbers who actually understand the trade, Vexo Accounting is ready to help. Our accountants are ready to talk you through your free quote. We offer a free consultation to talk through your plumbing business, your current setup, your payments, and where the biggest wins are for you.

Get in touch today for your free quote, and let's get your accounts, tax, and CIS sorted so you can get back to the job.