Shower installation in Isleworth

Postcode districts: TW3, TW5, TW7
Nearby: Hounslow, Heston and Southall
Guide price: £550–£4,400
Typical time on site: half a day to 3 days
Water: Very hard across most of Greater London
Survey: Free, at your home

What does a new shower cost in Isleworth?

Our guide price for a new shower in Isleworth is £550–£4,400 including VAT. Prices in London run at about 25% above the national guide, mainly because of labour rates. The figure depends on the size of the room, whether anything moves, and the products you pick.

Shower swap

£550–£1,250

Test and handover

Typical

New shower over bath

£1,000–£2,200

Thermostatic bar shower and riser

New shower with enclosure

£1,900–£4,400

Pipework and waste

Guide prices for Isleworth including VAT. Your itemised written quote after the free survey is the price that counts.

Working in Isleworth

We work right across Isleworth — TW3, TW5 and TW7 — and in neighbouring Hounslow and Heston.

In Isleworth, many bathrooms are in flats or converted houses, so we check lease consents, access and the floor below before we price. If you want a shower in your Isleworth home that works when the boiler is off, an electric shower is worth considering, as long as the consumer unit can take the circuit. If the shower in your Isleworth home swings between hot and cold, a thermostatic valve is usually the fix.

Most of Greater London has very hard water. If your supply in Isleworth is the same, limescale on shower glass and heads is a real issue: easy-clean glass, rub-clean nozzles and a squeegee make a big difference. Hardness varies street by street, so check the figure for your postcode with your water supplier.

What the job includes

A check of your hot-water system, water pressure and flow rate
For an electric shower, a check of the consumer unit and whether a new dedicated circuit is needed
Electrical connection by a qualified electrician, tested and certified
A bath screen, tray or enclosure where the shower is new

Decisions to make first

Thermostatic mixer

Blends hot and cold from your system and holds the temperature steady when someone runs a tap. The usual choice with a combi or an unvented cylinder.

Digital shower

A wall panel sets the exact temperature and flow, while the mixing valve sits out of sight. It needs a power supply and suits a clean, concealed look.

Rules that apply in England

In England, an electric shower usually needs its own dedicated circuit, often 40 to 45 amps for an 8.5 to 10.5 kW unit, and a new circuit is notifiable under Part P. The Part G limit of 48 °C applies to a new bath in a new dwelling or one created by change of use, not to a shower, but a thermostatic valve gives similar protection. An unvented cylinder fitted to improve the shower must be installed by a G3-qualified installer.

More about shower installation

Shower installation in Isleworth: questions

How much should I budget for a new shower in Isleworth?

A new shower in Isleworth usually costs £550–£4,400 including VAT. The final figure comes down to what you choose and what we find at the survey; your written quote lists every item so you can see where the money goes.

Who handles building control for a new shower in Isleworth?

Building control for Isleworth is handled by the local council or an approved inspector. If your job needs sign-off — for example a new circuit, new drainage or a new extractor where there was none — we tell you at the survey and handle the notification as part of the work.

How long does a new shower take?

Allow half a day to 3 days on site for most jobs, plus the lead time for products after you approve the quote. We give you a day-by-day plan before work starts in Isleworth.

Is the home survey in Isleworth really free?

Yes. We visit, measure the room, check the pipework, drainage and electrics, and talk through what you want. You then get a written, itemised quote with no obligation to go ahead.

Why does my shower keep going hot and cold?

Usually because it is a manual mixer without thermostatic control, so when someone runs a tap or flushes a toilet, the balance of hot and cold changes. A thermostatic valve corrects for this automatically. On an electric shower, scale build-up or a failing part can cause the same symptom.