En-suites in Sunbury-on-Thames

Postcode districts: KT12, TW16, TW17
Nearby: Walton-on-Thames, West Molesey and Ashford
Guide price: £5,000–£10,000
Typical time on site: 4–8 working days
Water: Hard across most of Surrey
Survey: Free, at your home

What does an en-suite cost in Sunbury-on-Thames?

For Sunbury-on-Thames, our guide range for an en-suite is £5,000 to £10,000 including VAT. We adjust the national guide for South East England, where prices are typically about 12% above the UK average. The figure depends on the size of the room, whether anything moves, and the products you pick.

Refit

£4,500–£7,800

Tiling, lighting and extractor fan

Typical

Upgrade

£6,700–£10,750

Walk-in shower or larger tray

New en-suite

£7,800–£15,750

New stud walls, drainage and pump if needed

Guide prices for Sunbury-on-Thames including VAT. Your itemised written quote after the free survey is the price that counts.

Working in Sunbury-on-Thames

In Sunbury-on-Thames we cover KT12, TW16 and TW17; we also cover Walton-on-Thames, 1.2 miles away, and West Molesey.

Homes in and around Sunbury-on-Thames vary, so we look at the floor, the walls and the water system before we price anything. For an en-suite in Sunbury-on-Thames, the first question at the survey is always where the waste can reach the soil stack. If the en-suite in your Sunbury-on-Thames home was squeezed in by a previous owner, a refit is a chance to fix the door swing and the tray size.

Most of Surrey has hard water. If your supply in Sunbury-on-Thames 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 door that suits a tight space: inward, outward, sliding or a pocket door
An extractor fan ducted to outside, sized to the room and wired with an overrun timer or humidistat
Tiling, silicone, testing and making good on the bedroom side of any new walls
Stud walls with acoustic insulation and moisture-resistant board for a new en-suite

Decisions to make first

Noise

Acoustic insulation in the stud walls and a quiet fan make a real difference when one of you showers early while the other is still asleep.

Shower size

A 900 mm square tray is a comfortable minimum for an enclosure. In a long, narrow room, a 1200 by 800 mm walk-in tray with one glass panel feels far more generous.

Rules that apply in England

In England, a new en-suite brings in Part H for the new connection to the soil stack, Approved Document F for ventilation, at 15 litres per second intermittent or 8 litres per second continuous extract, and Part P for the new circuits. The electrician should be registered with a competent person scheme, or the work notified to building control. On a refit, avoid replacing the fan with a less effective one.

More about en-suites

En-suites in Sunbury-on-Thames: questions

How much should I budget for an en-suite in Sunbury-on-Thames?

An en-suite in Sunbury-on-Thames usually costs £5,000–£10,000 including VAT. Where you land in that range depends on the size of the room, whether the layout changes and the products you choose. After the free survey you get an itemised written quote, and the price is fixed in writing once the layout and products are agreed.

Is the water hard in Sunbury-on-Thames?

Who handles building control for an en-suite in Sunbury-on-Thames?

Building control for Sunbury-on-Thames 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 an en-suite take?

Allow 4–8 working 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 Sunbury-on-Thames.

How much space do you need for an en-suite?

As a rough guide, about 2.5 m² is the practical minimum for a shower, basin and WC, for example a space of around 1.2 m by 2.1 m. The exact layout depends on where the door, window and soil stack are, so we test it against your measurements rather than a rule of thumb.