How to start a bathroom fitting business UK

Starting a bathroom fitting business in the UK is one of the more accessible routes into the trades. You do not need a specific licence to fit bathrooms, but you do need solid plumbing skills, an understanding of Part P electrical regulations, and the business fundamentals that separate a busy fitter from one who is constantly chasing work.

In 2026, the UK bathroom market continues to perform strongly. Homeowners are spending more on renovation projects, and a skilled, reliable bathroom fitter who presents themselves professionally can command day rates of £250 to £450 depending on location and experience. This guide walks you through every step of setting up your own bathroom fitting business, from registering with HMRC to sending your first invoice. — try free invoicing tool

Do you need qualifications to fit bathrooms in the UK?

There is no single mandatory qualification for bathroom fitting, but several certifications will make you more employable, insurable, and credible with customers.

Plumbing qualifications

A Level 2 or Level 3 NVQ in Plumbing and Domestic Heating is the industry standard. These can be completed through colleges, apprenticeships, or via the City and Guilds framework. If you already have plumbing experience but no formal qualification, you can sit an Accredited Prior Learning (APL) assessment to gain recognition.

Electrical work (Part P)

Bathrooms are Zone 1 and Zone 2 electrical environments under BS 7671, which means many electrical tasks require either a qualified electrician or a Part P registered installer. If you plan to install extractor fans, electric showers, or heated towel rails yourself, you should hold a NICEIC or NAPIT Part P registration. Without this, you must subcontract notifiable electrical work, which adds cost and complexity.

Water regulations

All plumbing work in England and Wales must comply with the Water Supply (Water Fittings) Regulations 1999. As an approved contractor through a body such as the Water Industry Approved Plumbers Scheme (WIAPS), you can self-certify your own work rather than notifying the water undertaker for every job.

Registering your bathroom fitting business

Before you take on your first paid job, you need to be registered correctly with HMRC and, if relevant, Companies House.

Sole trader vs limited company

Most bathroom fitters start as sole traders because it is simpler and cheaper. You register with HMRC for Self Assessment and pay Income Tax and National Insurance on your profits. There is no Companies House registration required.

A limited company offers liability protection and can be more tax-efficient once you are earning above approximately £50,000 per year, but it comes with additional accounting obligations. Most sole traders find it worth speaking to an accountant once their turnover approaches that level.

You can register as a sole trader on the GOV.UK Self Assessment registration page. It takes around 10 minutes.

VAT registration

VAT registration is mandatory once your taxable turnover exceeds £90,000 in a rolling 12-month period (the threshold as of April 2024). Below that, registration is optional. Many bathroom fitters register voluntarily once they are trading primarily with trade suppliers and other VAT-registered businesses, as they can reclaim VAT on materials. However, if most of your customers are private homeowners, voluntary registration increases your prices relative to non-registered competitors.

Construction Industry Scheme (CIS)

If you work as a subcontractor for builders, developers, or main contractors, you will need to register for CIS with HMRC. Under CIS, contractors deduct 20% (or 30% if you are not registered) from your payments and pass it to HMRC as advance tax. You claim this back through your Self Assessment tax return.

Essential insurance for bathroom fitters

Insurance is non-negotiable. A single water leak from a badly fitted waste pipe can cause thousands of pounds of damage to a customer's property, and without the right cover you would be personally liable.

Public liability insurance

Public liability (PL) insurance covers damage to third-party property or injury to a member of the public caused by your work. Most bathroom fitters carry £1 million to £5 million of PL cover. For 2026, expect annual premiums of £150 to £400 depending on your turnover and the level of cover.

Employer's liability insurance

If you employ anyone, including casual labourers, employer's liability insurance is a legal requirement under the Employers' Liability (Compulsory Insurance) Act 1969. The minimum cover is £5 million.

Tools and equipment cover

A standard bathroom fitting kit including power tools, pipe benders, and hand tools can easily be worth £3,000 to £8,000. Tools cover protects against theft from your van or site.

Professional indemnity insurance

If you offer design consultations or specify products for customers, professional indemnity insurance covers claims arising from advice that leads to a financial loss.

Setting up your bathroom fitting business finances

Getting your finances straight from day one saves enormous headaches later. The most important steps are opening a dedicated business bank account, setting up a simple bookkeeping system, and understanding how to price your work.

Business bank account

While sole traders are technically allowed to use a personal bank account for business, a dedicated business account makes tax preparation far simpler. Several UK banks including Starling, Monzo Business, and Tide offer free or low-cost business accounts suited to sole traders.

Quoting and invoicing

Professional quotes and invoices are what separate serious businesses from hobbyists. Use the free quote generator to produce branded quotes quickly, and the invoice generator to bill customers once work is complete. Always issue a written quote before starting work and get the customer's written acceptance.

For bathroom fitting, a typical payment structure is 25-30% deposit on acceptance, 50% on delivery of materials, and the balance on completion. Never start a job without a deposit.

Pricing your work

Bathroom fitting day rates in the UK in 2026 typically range from £200 to £450 per day depending on location (London and the South East are at the top end), your level of experience, and whether you are supplying materials. Use the day rate calculator to work out what you need to charge to cover your costs, pay yourself a reasonable wage, and build a business with some profit margin.

A full bathroom refit (strip out, new suite, tiling, electrics, plumbing) typically takes 5 to 8 days for one fitter. At £300 per day plus materials, the labour element alone comes to £1,500 to £2,400.

Getting your first bathroom fitting customers

The hardest part of starting any trade business is getting those first jobs. Here are the most effective routes in 2026.

Google Business Profile

Create a free Google Business Profile with your business name, location, service area, and contact details. Ask every satisfied customer for a Google review. Even 10 to 15 genuine five-star reviews will put you ahead of most local competitors in search results.

Checkatrade, Rated People, and MyBuilder

Lead generation platforms such as Checkatrade and Rated People are worth considering early on, though monthly fees and lead costs vary. They work best when you have a handful of reviews to show prospective customers. Budget £50 to £150 per month for these platforms in year one.

Social media

Before and after photos on Instagram and Facebook are genuinely effective for bathroom fitters. They are visual trades, and a well-lit photo of a completed bathroom refit regularly generates direct enquiries. Post consistently and always ask customers for permission before sharing images of their home.

Local trade networks

Building relationships with local builders, kitchen fitters, and interior designers can generate a steady stream of subcontracting and referral work. Many bathroom fitters get 30 to 50% of their work from referrals within 18 months of starting up.

Tools and a van

You will need a reliable van large enough to carry bathroom suites, waste, and tools. Most bathroom fitters use a medium wheelbase van (Transit, Transit Custom, or similar). Running costs including insurance, fuel, and servicing for a trade van in 2026 typically run to £4,000 to £8,000 per year.

Your core tool kit should include: angle grinder, SDS drill, jigsaw, tile cutter (wet and dry), pipe benders (15mm and 22mm), soldering kit, pressure tester, and a full set of hand tools. Budget £2,000 to £5,000 for a professional-grade kit if you are starting from scratch.

Health and safety obligations

As a self-employed person working in customers' homes, you have duties under the Health and Safety at Work Act 1974 and the Management of Health and Safety at Work Regulations 1999. Key requirements include:

• COSHH assessments for any hazardous substances you use (adhesives, solvents, waste removal)
• Manual handling precautions when moving baths and heavy suites
• Asbestos awareness training if you are working in homes built before 2000 (many vinyl floor tiles and pipe lagging contain asbestos)
• Maintaining a record of accidents and near misses if you employ staff

The HSE small firms section has free guidance specifically for sole traders in construction trades.

Growing your bathroom fitting business

Once you are consistently busy, you face a choice: stay solo and increase your day rate, or take on an employee or apprentice and grow your capacity. Both are valid strategies. Taking on staff multiplies your complexity considerably, including PAYE, employer's liability insurance, and employment law obligations.

Many successful bathroom fitters stay solo but increase earnings by moving into higher-end work, offering design-and-fit packages with bathroom showrooms, or specialising in accessible bathrooms (wet rooms, level-access showers) for the growing older adult market.