Bathroom plumbing — Hillingdon
Bathroom plumbing installation and repairs in Hillingdon
Expert bathroom plumbing across Hillingdon — Uxbridge, Hayes, Ruislip, Northolt. Toilet installation, shower and bath plumbing, basin fitting, thermostatic valves, waste connections, and full en-suite additions. From £150 for a single fixture.

Bathroom plumbing in Hillingdon
Plumbing for every type of London bathroom
London's housing stock presents unique plumbing challenges. Victorian terraces in Hillingdon often have gravity-fed systems, cast-iron soil stacks, and tight floor voids where modern fittings need careful adaptation. Purpose-built flats require coordination with building drainage layouts, while HMOs demand reliable fixtures that can withstand heavy daily use. Our engineers understand all of it.
We carry out the full scope of bathroom plumbing — from a straightforward toilet swap to a complete bathroom refit plumbed from first fix to final connection. That includes hot and cold supply pipework in 15mm and 22mm copper or plastic, waste runs to the soil stack, P-trap and S-trap configuration for basins and baths, and anti-syphon valves where needed to prevent drain odours.
Wet rooms are increasingly popular in Hillingdon flats and houses, and we install the drainage, linear channel traps, and supply connections to support them. Thermostatic shower valves — both exposed bar valves and concealed — are fitted to manufacturer spec, with pressure-balancing cartridges that protect against sudden temperature changes.
Concealed cistern systems, which sit behind a wall panel or tile frame, are a common request for modern bathroom refurbishments in Hillingdon. We frame and plumb the cistern unit, fit the flush plate rough-in, and leave everything ready for your tiler before returning to make final connections. En-suite additions — adding a WC, basin, and shower to a bedroom — are one of the most effective ways to add value to a London property, and we handle the full plumbing scope from soil pipe extension to final commissioning.
All work carries a 12-month labour guarantee. We supply materials or work with yours. Fixed quotes are provided before any work begins — there are no surprises on the invoice. We cover Uxbridge, Hayes, Ruislip, Northolt and all surrounding areas of Hillingdon.
What we do
Bathroom plumbing services
Toilet installation
Close-coupled, back-to-wall, and wall-hung WC installation. Concealed cistern fitting, soil pipe connections, and water supply. Replacement of old pans and cisterns in London flats and houses.
Shower and bath plumbing
Supply and waste plumbing for electric, mixer, and thermostatic showers. Bath installation including P-trap waste, overflow connections, and hot/cold supplies. Wet room drainage and waterproofing rough-ins.
Basin installation
Pedestal, wall-hung, and vanity unit basin fitting. Hot/cold supply connections, bottle trap waste, and overflow. Countertop vessel basins and semi-recessed inset basins installed to manufacturer spec.
Thermostatic valve fitting
Thermostatic shower valve installation for precise temperature control and scald protection. Bar valve, exposed, and concealed thermostatic cartridge fitting. Essential for HMOs, family homes, and care properties.
Bathroom waste connections
Soil and waste stack connections, P-trap and S-trap fitting, anti-syphon valves, and AAV installation. Bath, shower, basin, and WC waste runs routed within floor voids or to existing stacks.
En-suite addition plumbing
Full plumbing design and installation for en-suite bathrooms added to London flats and houses. Supply and waste routes from existing stacks, soil pipe extensions, thermostatic shower packs, and WC connections.
Transparent pricing
Bathroom plumbing costs
All prices include labour. Materials quoted separately. Fixed quotes provided before any work begins — no hidden charges.
Areas in Hillingdon we cover
Get in touch
Book bathroom plumbing in Hillingdon today
Whether you need a single toilet installed or a full bathroom refit plumbed from scratch, our engineers work across Hillingdon. Fixed quotes, no call-out fees, same-day availability for urgent repairs.
Get a free quoteCommon questions
Bathroom plumbing Hillingdon: frequently asked
Can you add an en-suite bathroom to a London flat in Hillingdon?
Yes — en-suite additions are one of the most common bathroom plumbing jobs we carry out in Hillingdon. Most London flats have soil stacks accessible within floor voids or service ducts, and we route new waste and supply pipework to connect a WC, shower, and basin. Where a flat is on an upper floor, we work with the building's existing soil pipe. We survey the space first and provide a fixed quote before any work begins. We cover Uxbridge, Hayes, Ruislip, Northolt.
Do you need Building Regulations approval for a new bathroom in Hillingdon?
In most cases, like-for-like bathroom replacement does not require Building Regulations approval in Hillingdon. However, if you are adding a new bathroom or en-suite where one did not previously exist — including adding a new WC, relocating soil pipe connections, or creating a new wet room — Building Regulations Part G (sanitation) may apply. We advise on compliance requirements during the survey stage and can liaise with your local authority if notification is needed.
How long does bathroom plumbing take in Hillingdon?
A single fixture replacement (toilet, basin, or shower) typically takes 2–4 hours in a Hillingdon property. A full bathroom refit — stripping out the old suite and plumbing in a new bath, shower, WC, and basin — normally takes 1–2 days for the plumbing rough-in, with final connections once tiling is complete. En-suite additions vary by access but average 1–3 days. We give realistic timescales at the quote stage.
What causes low shower pressure in London flats?
Low shower pressure in London flats is most commonly caused by limescale buildup on the shower head or thermostatic cartridge, an undersized supply pipe to the shower, or low mains pressure entering the flat — particularly in properties above the third floor. Gravity-fed systems with a header tank in the loft also produce lower pressure. We diagnose the root cause and recommend the right fix: descaling, cartridge replacement, a pump-assisted shower, or a new thermostatic bar valve with higher flow rate. We cover all Hillingdon areas including Uxbridge, Hayes, Ruislip, Northolt.