Vetted plumbers and electricians working to Part P and Part G, coordinated for you across the full project — from a quick refresh to a complete renovation. Free video consultation before any callout.
A bathroom renovation is a multi-trade project — plumbing, electrics, tiling, and waterproofing all need to happen in the right order, by the right people. Electrical work in a bathroom is governed by Building Regulations Part P, which classifies bathrooms into risk zones around water sources and requires specific IP-rated fixtures and protective devices, so anything beyond basic fixture swaps needs a registered electrician. Sanitary pipework, water efficiency, and unvented hot water systems fall under Part G, and new unvented systems require building control notification.
Most internal bathroom work doesn't need planning permission, but leasehold flat owners should check their lease for consent requirements around shared pipework, and anyone in a listed building should check before altering original layouts. A free video consultation before booking can map out the right trade sequence and flag any compliance steps — before you've committed to a start date.
At a glance
Why Seven Services
Multi-trade projects fail most often at the coordination stage, not the individual trades. A free video call up front sorts the sequencing before it becomes your problem.
A vetted professional walks through your bathroom, scope, and budget on a live video call before anyone travels to the property — surfacing sequencing, compliance and access questions early.
Full renovations need both a registered plumber and a Part P registered electrician working in the right sequence. We coordinate this for you rather than leaving you to manage separate bookings.
All professionals carry public liability insurance, covering the plumbing, electrical, tiling and waterproofing work involved in a typical renovation.
Scope, fixture specification, trade sequence, and total price are agreed during the video consultation — before anyone travels. No ambiguity about what's included once work starts.
From Barnet to Bromley, Hillingdon to Havering — our network covers every borough, with consistent pricing and availability regardless of location.
Part P electrical zoning, Part G sanitation and water efficiency, and building control notification for unvented hot water systems are handled as standard, not as an afterthought.
What we cover
From a quick refresh to a full multi-trade renovation — here's what vetted professionals on the platform cover.
Not sure whether your bathroom needs a full renovation or just a refresh? A free video call with a vetted professional can confirm the right approach before anyone visits.
Complete strip-out and rebuild — new pipework, fixtures, tiling, waterproofing and electrics, coordinated across plumber, electrician and tiler. The most involved option, and the one most likely to need trade sequencing done properly.
Creating a new ensuite from scratch, typically off a bedroom — new pipework runs, drainage, waterproofing, and electrics for a compact, self-contained bathroom.
Level-access, fully tanked wetroom conversion — the most waterproofing-intensive option, requiring careful attention to falls, drainage and tanking cure times before tiling.
Compact WC and basin installation in an existing small space — the most straightforward new-bathroom project, but still requires correct drainage falls and Part P compliant electrics if lighting or extraction is added.
Retiling, reglazing, and fixture swaps without moving pipework — a faster, lower-cost way to modernise a bathroom that's structurally sound but visually dated.
Standalone tiling and tanking work — correct waterproofing behind tiles is what actually prevents leaks into the room or floor below, and it's the step most commonly rushed or skipped in budget renovations.
Level-access showers, grab rails, raised WCs and non-slip flooring for accessibility needs. Some adaptations may be eligible for a Disabled Facilities Grant depending on individual circumstances — worth checking with your local authority.
Leaks, failing waterproofing, cracked tiles, poor extraction, or fixtures that need replacing without a full renovation. A video consultation can often narrow down the cause before booking a visit.
Common issues
Most of these point to either a genuine renovation need or a smaller fix — a video call helps tell the difference.
A free video call with a vetted professional can assess the issue before booking a visit.
Usually points to a waterproofing (tanking) failure, a cracked grout line, or a failed seal around the bath or shower tray — needs investigating promptly since ceiling damage below compounds the longer it's left.
Often caused by an underperforming or missing extractor fan, or condensation with nowhere to escape. Left unaddressed, this affects both the bathroom's finishes and air quality.
Can indicate movement in the substrate, a failed adhesive bond, or — more seriously — water getting behind the tiles and compromising the waterproofing layer beneath.
Can be a supply-side issue, a scaled shower head, or in older properties, undersized pipework that a renovation is a natural opportunity to correct.
Older bathrooms often have light switches, sockets or fittings positioned or rated incorrectly for their Part P zone — a common finding when a renovation opens up the room.
Particularly common in London flats where the bathroom was fitted into whatever space was left over — a renovation is the point at which layout can actually be reconsidered.
Sound plumbing and waterproofing but tired tiling and fixtures — this is squarely a refresh candidate rather than a full renovation, and considerably cheaper to resolve.
Pricing guide
Costs scale with bathroom size, whether pipework is being moved, tiling extent, and fixture quality.
A free video consultation produces a realistic scope and cost estimate before any visit.
| Project | Minimum | Typical | Maximum | Key factors |
|---|---|---|---|---|
| Budget full renovation | £4,500 | £5,800 | £7,000 | Standard fixtures, no pipework moves |
| Mid-range full renovation | £7,000 | £9,500 | £12,000 | Better fixtures, some layout change |
| Premium full renovation | £12,000 | £17,000 | £25,000+ | High-end fixtures, bespoke tiling, layout change |
| Ensuite installation (new) | £6,000 | £8,500 | £12,000 | New pipework run, drainage access |
| Wetroom conversion | £8,000 | £11,000 | £15,000 | Tanking extent, floor build-up, drainage falls |
| Small cloakroom / WC install | £2,500 | £3,400 | £4,500 | Drainage access, existing plumbing proximity |
| Bathroom refresh (no pipework moves) | £2,000 | £2,900 | £4,000 | Tiling area, fixture swap count |
| Tiling & waterproofing only | £1,200 | £1,800 | £2,500 | Room size, tile format, tanking extent |
| Accessible bathroom adaptation | £5,000 | £7,200 | £10,000 | Adaptation type, may be partly grant-funded |
Three factors drive most of the price variation between quotes for what sounds like a similar project:
The process
Designed to get the trade sequencing right from the start.
Describe your bathroom, current condition, and what you're hoping to achieve — full renovation, refresh, or a specific repair. Photos of the current space help.
A vetted professional joins a live video call to assess scope, recommend an approach, and flag any compliance or access considerations before anyone travels.
Fixture specification, trade sequence (plumber, electrician, tiler), and total price are confirmed in writing before work starts.
Trades work in the agreed sequence. Electrical work is Part P compliant; sanitation and hot water work follows Part G, with building control notification where required.
After completion, you rate the professionals through the platform. All reviews are verified against completed bookings.
Browse vetted plumbers and electricians with real ratings and verified credentials. Book a free video consultation directly from the app.
View verified credentials, real ratings, and completed job history before you choose.
Book a video call directly from the app — no phone tag or email chains.
Follow your renovation from quote to completion with status updates.
Describe your bathroom and receive transparent pricing from multiple professionals.
Prefer not to install an app? Submit a request on our website — same professionals, same free video consultation.
Coverage
Vetted plumbers and electricians available across the whole of Greater London.
Inner-London boroughs with a high concentration of period conversion flats — Islington, Hackney, Camden among them — see more renovations complicated by shared drainage, older pipework, and leasehold consent requirements for work affecting communal systems. Outer-borough houses in areas like Bromley, Havering and Sutton more commonly have straightforward, unshared plumbing runs, which tends to simplify both scoping and pricing.
Due diligence
These checks matter given the multi-trade nature and compliance requirements of bathroom work.
Expert guidance
Tiles are cosmetic; the waterproofing (tanking) layer behind them is what actually keeps water out of your subfloor and the ceiling below. A renovation that looks identical on the surface can have very different long-term outcomes depending on whether tanking was done properly and given time to cure before tiling began.
Plumbing first-fix, electrical first-fix, waterproofing, tiling, then second-fix plumbing and electrics — get this order wrong and you risk having to rip out finished work to fix something underneath. Coordinating this sequence is one of the most valuable things a managed renovation adds over self-managing separate tradespeople.
Building Regulations Part P classifies areas of a bathroom into zones based on proximity to water, each with different requirements for IP-rated fixtures and protective devices. This is why bathroom light fittings and sockets look and are positioned differently from the rest of the house — and why this work needs a registered electrician, not a general handyman.
If your bathroom's plumbing and waterproofing are sound but the finishes are dated, a refresh — retiling and fixture swaps without moving pipework — delivers most of the visual impact of a full renovation for a fraction of the cost and disruption.
Many London flat bathrooms were fitted into leftover space rather than designed properly. A renovation is the point at which it's worth reconsidering the layout entirely — sometimes a different fixture arrangement makes a small room feel considerably larger without any extra square footage.
Depending on individual circumstances, some accessible bathroom adaptations may be eligible for support through a Disabled Facilities Grant via your local authority. Eligibility and funding levels vary, so it's worth checking with your council before finalising a private quote.
Free video consultation before any callout. Get a realistic scope and price, understand the trade sequence, and agree everything in writing — before anyone travels to your property.
Common questions
Answers to the questions London homeowners ask most about bathroom renovations.
What customers say
Reviews from verified Seven Services bookings — bathroom renovation jobs across London.
"Full renovation of our only bathroom, so timing mattered a lot. The video call laid out the whole trade sequence upfront and it genuinely ran to that plan — no surprise gaps between plumber and tiler."
"Ensuite built from scratch off our loft bedroom. Getting the pipework run planned properly before anyone started meant no nasty surprises when the floor came up."
"Refresh rather than full renovation since our plumbing was fine, just dated tiles. Considerably cheaper than I expected and the room looks completely different."
"Wetroom conversion in a small flat — wasn't sure it would work in the space we had, but the drainage falls were designed properly and it works better than expected."
"Had a leak into the flat below from a failed seal around the bath. Fixed properly with new tanking rather than just resealing the visible gap — hasn't come back."
"Accessible adaptation for my mother's bathroom — level access shower and grab rails fitted properly, and they pointed us toward the Disabled Facilities Grant application before we'd even asked."
Also on Seven
Learn more
What: Bathroom renovation, ensuite and wetroom installation across Greater London — from a quick refresh to a full multi-trade renovation, coordinated between plumber, electrician and tiler.
Who needs it: Homeowners renovating a dated or non-functional bathroom, building a new ensuite, converting to a wetroom, or making accessibility adaptations.
Key compliance points: Electrical work in bathrooms must comply with Building Regulations Part P zoning rules and be carried out by a registered electrician. Sanitation and hot water work falls under Part G, and new unvented hot water systems require building control notification. Most internal work doesn't need planning permission, but leasehold flats may need freeholder consent for shared pipework.
Typical London costs: Budget renovation £4,500–£7,000; mid-range £7,000–£12,000; premium £12,000–£25,000+; refresh £2,000–£4,000; ensuite £6,000–£12,000; wetroom £8,000–£15,000.
Seven Services: Marketplace platform connecting London homeowners with vetted plumbers and electricians across all 32 boroughs. Includes a free video consultation before any callout — useful for scoping the project and getting trade sequencing right before committing.
This page is intended for general informational purposes. Electrical work in bathrooms must comply with Building Regulations Part P and be carried out by a registered electrician. Sanitation and hot water work must comply with Part G, and new unvented hot water systems require building control notification. Planning permission and leasehold consent requirements vary by property and local authority; always check before undertaking work. Prices are indicative market ranges and will vary depending on property specifics, scope of work, and contractor. Seven Services connects customers with independent tradespeople and does not carry out work directly.