HOW TO HIRE · ELECTRICAL

How to hire a hot tub electrician in the UK
The checks, the questions and the paperwork.

A hot tub's own supply is a notifiable new circuit. The register check, the isolator questions, and the certificates to keep.

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THE 60-SECOND VERSION

Hiring a hot tub electrician in five steps

  1. Find the tub's required supplyThe maker's manual gives the rating, often 32A or 40A, and the protection needed.
  2. Look them up firstThe Registered Competent Person Electrical register covers England and Wales; check the name there before agreeing the hot tub supply.
  3. Agree the isolator positionWithin reach for you, out of reach of anyone in the tub.
  4. Plan the trenchRoute under lawn, patio or decking, and who reinstates it.
  5. Get both certificatesElectrical Installation Certificate on the day; compliance certificate from the scheme.

BEFORE YOU BOOK

Check before you book

Registered Competent Person Electrical

In England and Wales, the hot tub supply is a new circuit from the consumer unit, which is notifiable, and in Wales outdoor work is notifiable as well. So the hot tub supply is either self-certified under the Building Regulations by an electrician on a government-authorised competent person scheme, such as NICEIC or NAPIT, or notified to building control before it starts, and you pay for that inspection.

Type the business name into the register's search before the hot tub supply is booked. electricalcompetentperson.co.uk →

Electrical Installation Certificate

The hot tub supply is tested to BS 7671 — including the RCD — and recorded on an Electrical Installation Certificate. Since the hot tub supply is notifiable, expect the scheme's Building Regulations compliance certificate too: 8 weeks is gov.uk's figure for England, 30 days the Welsh Government's.

Get the certificate and its schedule of results on the day the hot tub supply is completed. gov.wales →

Building warrant (Scotland) and Northern Ireland

In Scotland there is no equivalent register; the hot tub supply is judged against building standard 4.5 (wiring to BS 7671), and certain work — rewiring a flat is the usual example — needs a building warrant, which the owner obtains. In Northern Ireland, the hot tub supply comes under building regulations with no Part P-style notification scheme for home wiring.

For a Scottish home, ask the electrician whether the hot tub supply needs a building warrant and whether they are an approved certifier of construction. gov.scot →

Insurance and trader status

Before the hot tub supply, confirm the public liability insurance and its limit. You have Consumer Rights Act 2015 protection because the provider is a trader; and if the hot tub supply is agreed in your home or online, the Consumer Contracts Regulations 2013 usually let you cancel within 14 days, except for made-to-measure goods and the part of the work you asked them to start early.

Ask for the insurance certificate before the hot tub supply is booked, and look for the trader and ID-checked badges on the Locufy profile.

VAT

Wiring a hot tub supply is standard-rated, so VAT is 20%; a firm with taxable turnover over £90,000 must be VAT-registered, charge that 20% and show it as a separate line on the quote and invoice.

Ask for the VAT number, and look for VAT as its own line on the hot tub supply quote. gov.uk →

“What supply does the hot tub need?”

A good answer: The rating from the maker's manual, with the cable and breaker sized for it and the run length.

“Where will the isolator for the hot tub wiring go?”

A good answer: Close enough to reach, far enough that nobody in the hot tub can touch it.

“Is the hot tub supply RCD-protected?”

A good answer: Yes, with the RCD type the maker specifies.

“How will the wiring reach the tub?”

A good answer: Armoured cable buried at depth, or protected under decking, with the route recorded.

“Is there room in the consumer unit?”

A good answer: A spare way and suitable protection for the hot tub wiring, or a board upgrade priced separately.

“Who connects the tub itself?”

A good answer: Agreed in advance: the electrician makes the final connection to the tub's control box and certifies it, or confirms who does.

Getting the quote right

  • Supply rating, cable size and route length
  • Isolator and RCD protection
  • Trench and reinstatement under lawn, patio or decking
  • Consumer unit work as a separate line
  • Who actually attends — the electrician and whoever trenches the cable, employed or subcontracted — and the business's VAT number, with VAT at 20% shown as its own line
  • Certification and notification included

Walk away if

  • Suggests running a 32A tub off a socket
  • Isolator within arm's reach of the water
  • No RCD on the hot tub circuit
  • Unarmoured cable under the lawn
  • No certificate and no notification
LOW
£350
TYPICAL
£550
HIGH
£800

What a hot tub electrician costs: £350–£800 per job

Hot tub wiring is priced per job; the distance from the consumer unit, trenching and any board work decide it. Hot Tub Wiring price guide →

Guide prices compiled by the Locufy team from published Irish and UK provider price lists and 2026/27 cost guides. Updated 2026.

KNOW WHAT TO LOOK FOR? NOW FIND ONE

Hot tub electricians near you, with the badges that matter shown

ID checked, trader status and one score from every review — on the card, before you message anyone. Nearest first. No account needed to look.

Or post the job free and let them come to you.

  1. Check the tubThe maker's supply requirement and the tub's position are confirmed.
  2. TrenchA route dug from the house to the tub; ducts laid under paving or decking.
  3. InstallArmoured cable connected at the board, isolator mounted, tub connected.
  4. TestInsulation resistance, earth fault loop impedance and RCD trip time measured.
  5. Certify and notifyCertificate handed over and the work notified through the scheme.

32A / 40A supply
The current a hard-wired hot tub draws, which sets the cable size.
Isolator
The switch that cuts the hot tub's supply.
RCD
The safety switch that cuts power in an earth fault.
SWA cable
Steel wire armoured cable for buried runs.
Plug-and-play tub
A smaller tub designed to run from a 13 amp socket.
Compliance certificate
The scheme's confirmation that notifiable work meets the Building Regulations.

AFTER

When the job is done

Keep the certificatesThe Electrical Installation Certificate and the compliance certificate; the tub maker may ask for them under warranty.
Test the RCDPress the test button before every season.
Mark the cable routeSo nobody digs through it when planting or laying paving.
Leave the reviewOnly booked jobs can be reviewed on Locufy, so yours carries weight; if the hot tub supply falls short, use the make-it-right step first and the provider is asked to fix it before the review is published.

STEP 1Start with the electrician, in writingSend the electrician a short, dated account of the problem with the hot tub supply and the fix you want. Section 49 of the Consumer Rights Act 2015 implies reasonable care and skill into the contract, and section 54 gives you repeat performance or a price reduction when it is missing.
STEP 2Use Locufy's make-it-right stepRate the hot tub supply under four stars and you are asked whether to send it to the provider first; we follow it through. Then the review goes up.
STEP 3Unsafe or uncertified workWhere the hot tub supply needed self-certifying or notifying in England or Wales and neither happened, building control at the council is the place to go; if only the compliance certificate is missing, ask the electrician's scheme to follow it up. For a dispute about the hot tub supply with the trader, Trading Standards is reached through the Citizens Advice consumer helpline on 0808 223 1133 in England and Wales, Advice Direct Scotland on 0808 800 9060, or Consumerline on 0300 123 6262 in Northern Ireland.
STEP 4Money still in disputeIf the hot tub supply is still not settled, you can claim without a solicitor: the small claims track takes claims up to £10,000 in England and Wales, simple procedure up to £5,000 in Scotland, and the small claims court up to £5,000 in Northern Ireland.

Hiring a hot tub electrician: questions people ask

In England and Wales a dedicated hot tub supply is a new circuit and notifiable: a scheme-registered electrician self-certifies it, or building control is notified first.

An Electrical Installation Certificate with the test results, and a compliance certificate from the scheme afterwards.

£350–£800 a job, typically around £550. Distance from the board, trenching and any board upgrade set the price. There is a line-by-line breakdown in the Hot Tub Wiring price guide, and the postcode box above brings up hot tub electricians in your area.

Only a tub designed for it; a hard-wired 32A or 40A tub needs its own circuit.

Where you can reach it easily but someone in the tub cannot.

Yes, with the cable protected underneath and the decking able to take the weight.

MORE GUIDES

More hiring guides in electrical

How to hire: Outbuilding Power SupplyHow to hire: Garden Office ElectricsHow to hire: Outdoor & Garden LightingHow to hire: Consumer Unit / Fuse Board UpgradeHow to hire: ElectricianHow to hire: Extra SocketsHow to hire: EV Charger InstallationHow to hire: Electrical Fault FindingAll 701 hiring guides →

Hot tub electricians near you

Hot tub electricians in LondonHot tub electricians in ManchesterHot tub electricians in BirminghamHot tub electricians in GlasgowHot tub electricians in BelfastAll hot tub electricians on Locufy →

Sources — checked October 2026

  1. gov.uk — Approved Document P: electrical safety in dwellings (England)
  2. Registered Competent Person Electrical register
  3. gov.uk — building work, replacements and repairs to your home (England)
  4. gov.wales — building regulations: electrics
  5. gov.scot — Building Standards Technical Handbook 2022 (domestic), standard 4.5 electrical safety
  6. gov.uk — building regulations: use a competent person scheme
  7. Consumer Rights Act 2015, section 49 — reasonable care and skill
  8. Consumer Rights Act 2015, section 54 — what you can ask for when a service falls short
  9. Consumer Contracts Regulations 2013, regulation 30 — the 14-day cancellation period
  10. Consumer Contracts Regulations 2013, regulation 28 — contracts the cancellation right does not cover
  11. Consumer Contracts Regulations 2013, regulation 36 — services started within the cancellation period
  12. Civil Procedure Rules Part 26 — the small claims track limit (England and Wales)
  13. Scottish Courts and Tribunals — making a claim under simple procedure
  14. nidirect — the small claims process (Northern Ireland)
  15. Buildings and construction (VAT Notice 708) — 2.1 Construction services: work to an existing building is normally standard-rated
  16. GOV.UK — VAT rates
  17. GOV.UK — Register for VAT: when to register