How to Start a PAT Testing Business in the UK (2026 Guide)
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The budgets and calculations below are illustrative planning examples, not surveyed market prices, current quotations or income forecasts. Amounts are assumed to exclude VAT unless explicitly stated; obtain current quotes and add your own staff time, travel, overheads and tax treatment before making a decision.
PAT testing is one of the most accessible electrical service businesses to start in the UK. The qualification takes a single day, the equipment costs under £1,000, the demand is genuine and recurring, and the work suits part-time, side-hustle and full-time models equally well.
This post is a complete guide to setting up a UK PAT testing business in 2026 — from qualifications through to securing your first paying clients.
Why PAT testing as a business
A few reasons PAT testing genuinely works as a small business:
Low barrier to entry
A PAT course can help develop inspection and testing skills. Competence also depends on practical ability, experience, the equipment involved and understanding the results. Successful learners on our classroom course receive a Skills Training Group certificate within one working day. Check the course scope and arrange additional training or specialist assistance for work outside it. See the course details and available locations.
Recurring revenue
Customers may need recurring maintenance, but the scope and timing depend on risk and applicable requirements. Build repeat business through reliable service and useful records rather than assuming every client will buy annual tests.
Research local demand
Research demand in the area and sectors you intend to serve. Speak to prospective customers, compare the scope of existing services and test whether the work can support your costs before buying equipment.
Scalable
Start as a sole trader part-time; add capacity by training assistants; expand to multi-site contracts. The business model scales naturally.
Combines with other trades
Many PAT testers are electricians, electrical contractors, facilities managers, or property maintenance specialists who add PAT testing as a natural extension of their existing work.
Step 1: Develop the competence for your service
Choose work that matches your actual training and practical ability. Check any customer-specific qualification requirement, and refer specialist tasks beyond your competence.
Step 2: Set up the business structure
Decide your business structure:
Sole trader
Simplest setup. Just register as self-employed with HMRC. Lower setup costs but personal liability for business debts.
Best for: testers starting part-time, side-hustle work, those testing the market.
Limited company
More complex setup but separates personal and business liability. Requires accountant for company filing.
Best for: testers planning full-time PAT testing, those expecting significant turnover, those wanting formal corporate structure.
Partnership
If working with a partner or spouse. Less common for PAT testing but viable.
Discuss with an accountant which structure suits your situation. For most starting testers, sole trader is initially fine, with progression to limited company once revenue is established.
Step 3: Get insurance
Insurance is non-negotiable for paid PAT testing work. As covered in our PAT tester insurance post, you need:
- Public liability (£2m minimum) — £150-£250/year
- Professional indemnity (£250k+) — £150-£350/year
- Tools and equipment cover — £80-£150/year
- Vehicle business class if driving for work — £50-£200/year
Combined annual cost: £400-£800 for a sole trader.
Most insurers require evidence of proper training before issuing professional indemnity cover.
Step 4: Buy your equipment
The minimum equipment for paid PAT testing:
- PAT tester: £400-£700 for a mid-range downloading model (the sweet spot for most users)
- Pass/fail labels: £30 for starter pack
- Software: usually included with mid-range testers, otherwise £100-£300
- Carry case: £40-50
- Test leads and probes: £30 for spare/replacement set
- Miscellaneous tools (screwdrivers, wire strippers): £20-30
Total upfront equipment cost: £600-£950 for a complete starter kit.
For the buying guide, see our PAT testing equipment post.
Step 5: Set up your records and processes
Before you start testing for clients, set up:
Asset register template
A spreadsheet or software template for recording each tested appliance. See our record sheet template post for structure.
Certificate template
A standard format for issuing certificates after each visit. See our PAT testing certificate post.
Invoice template
Either through accounting software (Xero, QuickBooks, FreeAgent) or a simple template. Include your business details, VAT status, services provided and payment terms.
Risk assessment
A documented PAT testing risk assessment as covered in our risk assessment post.
Quote template
For responding to enquiries quickly with consistent professional pricing.
Step 6: Set your prices
For pricing strategy, see our PAT testing pricing guide. Key starter pricing:
- Per-item rate: £1.30-£1.60
- Minimum call-out: £50-£60
- Tier discounts for larger jobs
Avoid the temptation to undercut the market — proper pricing is essential for sustainable business.
Step 7: Get your first clients
The hardest step. Several routes work:
Existing connections
Friends, family, neighbours, business associates — anyone with rentals, businesses or premises that need PAT testing. The first client is often the easiest if you've spread the word.
Local landlords and letting agents
Letting agents need reliable testing services. Cold-contact local agents with a clear pricing structure and offer to handle their property testing.
Local trade directories
- Google My Business (free, essential)
- Local chamber of commerce
- Trade-specific directories (Bark, Checkatrade for established testers)
- Yell.com (mixed value)
Networking
- Local trade groups (Federation of Small Businesses, Trade body chapters)
- Estate agent and property management networking events
- Hospitality and holiday let owner groups
Online presence
A simple professional website with:
- Services offered
- Service areas
- Pricing transparency
- Contact information
- Testimonials (start collecting from day one)
Most PAT testers don't need a sophisticated website — just a professional one that converts enquiries.
Social media
LinkedIn for professional client connections. Facebook for local landlord and small business community.
Referral relationships
Develop relationships with:
- Electricians (who refer PAT testing rather than doing it themselves)
- Estate agents (who manage rentals)
- Property managers
- Letting agents
- Compliance consultants
- Insurance brokers
Agree any referral arrangement clearly, including the fee, disclosure and scope. Do not assume one percentage is standard for every relationship.
Cold outreach
Direct mail to:
- Local independent landlords (sourced from Land Registry)
- Holiday let owners (sourced from Airbnb listings)
- HMO landlords (sourced from local authority licensing register)
A simple letter or email introducing your service and pricing converts surprisingly well — particularly to landlords currently using contractors who've raised prices recently.
Step 8: Deliver excellent service
The first 5 clients matter more than any others. They:
- Provide testimonials and referrals
- Establish your local reputation
- Generate the recurring revenue that powers everything else
Excellent service means:
- Punctual arrival (not just on-time, but slightly early)
- Professional presentation (clean clothes, organised equipment)
- Thorough testing (not rushed)
- Same-day or next-day reporting (when promised)
- Clear, jargon-free explanations to clients
- Proactive communication about any issues found
- Faster than competitors
- More accurate than competitors
Each excellent first client creates 2-3 referrals on average. Each disappointing first client creates negative word-of-mouth.
Step 9: Build the recurring revenue base
The unique attraction of PAT testing is recurring work. By the end of your first year:
- Set reminders from each customer's agreed maintenance plan and applicable requirements, with a way to record changed use or reported faults.
- Build database of all clients with their test schedules
- Send professional retest reminders 4-6 weeks before due
- Offer multi-property contracts with annual pricing
A typical PAT tester completes their first year with 30-80 clients on recurring schedules. By year 3, that base typically grows to 150-300 clients with predictable revenue.
Step 10: Scale (when ready)
Once your individual capacity is full:
Train assistants
Junior tester or scribe to double daily output. Adds £150-300/week in salary cost but typically doubles revenue.
Specialise in higher-margin niches
HMO portfolios, holiday lets, schools — premium pricing for specialised expertise.
Add complementary services
EICR (with appropriate qualifications), fire safety, gas safety as part of compliance bundles.
Expand geographic territory
Cover wider areas through additional testers or partnerships.
Common mistakes new testers make
Underpricing to win work
The fastest way to burn out and exit the business. Proper pricing is essential.
Working without proper insurance
A single claim can end the business. Don't risk it.
Skipping calibration
Follow the instrument manufacturer’s calibration and verification requirements, and check any customer or insurance conditions. Keep records of maintenance and instrument checks. Read the calibration guide.
Trying to do EICR work without qualifications
PAT testing qualifications don't cover EICR. Don't blur the lines unless you have proper electrician credentials.
Poor record-keeping
The business is built on records. Spend more time getting documentation right than on additional clients.
Free quotes for tiny jobs
Time spent on phone with prospects who never convert is the silent killer of PAT testing margins. Quote standard prices clearly and don't waste time on uncommitted prospects.
Not asking for referrals
The single biggest source of new business is referrals from existing clients. Ask explicitly: "Do you know anyone else who needs PAT testing?"
Realistic income expectations
Do not treat example daily revenue as take-home pay. Build a forecast using realistic billable days, travel, administration, rework, equipment, insurance and other costs. Demand and profit are not guaranteed.
Frequently asked questions
How much does it cost to start a PAT testing business?
Build a budget from current quotes for suitable training, a tester and accessories, equipment maintenance, insurance, travel, records and marketing. Your service scope and existing equipment determine the total; the planning examples above are not a guaranteed startup price.
Do I need to be an electrician to start a PAT testing business?
There is no general requirement to be an electrician for routine appliance inspection and testing. You must be competent for the tasks you accept, including choosing suitable checks and understanding results. Refer fixed wiring or specialist equipment work beyond that competence.
How long does it take to get a PAT testing qualification?
Choose work that matches your actual training and practical ability. Check any customer-specific qualification requirement, and refer specialist tasks beyond your competence.
Can I do PAT testing as a side business?
Yes. PAT testing suits part-time, side-business work — many UK testers operate as a complement to other employment or trades.
What insurance do I need?
Discuss your exact activities with an insurer or broker. Public liability, professional indemnity, tools and business vehicle cover may be relevant, and employing staff can introduce employers’ liability obligations. Customer contracts can specify limits; there is no single premium or cover limit suitable for every PAT business.
How do I find my first clients?
Existing connections first, then networking with letting agents, estate agents, property managers, electricians and local business owners. Online presence and trade directories supplement direct outreach.
How long until I'm earning regularly from PAT testing?
There is no reliable universal timescale. It depends on your market, competence, customer acquisition, availability and costs. Start with a realistic cash-flow plan and avoid relying on a promised income.
The takeaway
Build the service around work you are competent to do, realistic costs, suitable equipment, reliable records and clear customer communication. Research local demand and grow the service as your experience develops; no income or payback timescale is guaranteed.
