Loft bathrooms in Carshalton

Postcode districts: SM1, SM5, SM6
Nearby: Sutton, Mitcham and Morden
Guide price: £8,100–£16,250
Typical time on site: 6–12 working days
Water: Very hard across most of Greater London
Survey: Free, at your home

What does a loft bathroom cost in Carshalton?

As a guide, budget £8,100 to £16,250 including VAT for a loft bathroom in Carshalton; your written quote will pin it down. Labour costs in London put local prices at about 25% above the UK guide figure. The figure depends on the size of the room, whether anything moves, and the products you pick.

Refit

£6,900–£10,500

Existing loft shower room

Typical

Signature

£10,000–£16,250

Fitted furniture to the eaves

New loft bathroom

£12,500–£22,500

Ventilation and electrics to regulations

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

Working in Carshalton

We cover every part of Carshalton, including SM1, SM5 and SM6, and nearby Sutton (1.9 miles) and Mitcham (2.4 miles).

London homes in Carshalton often mean stairs, permits and neighbours below; we plan the logistics as carefully as the bathroom. If your Carshalton home has a gravity-drained WC on another floor, a macerator in the loft may open up more layout options. For a loft bathroom in a tank-fed Carshalton home, we work out how the shower will get its pressure before choosing a single fitting.

Supplies across most of Greater London are very hard. If your supply in Carshalton 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 and of the pressure and flow you actually get at loft level
A drainage route from the loft to the soil stack with enough fall, or a pumped waste or macerator where the rules allow it
Fitted furniture made to the eaves, so the low space behind the slope becomes storage
A check of the floor joists where a bath or large shower tray will sit

Decisions to make first

Where the shower goes

Under the ridge or in a dormer, where the full height is. A walk-in shower with a single panel is usually easier to fit to a roof line than a framed enclosure.

Roof window

A roof window over the bath or shower brings daylight and fresh air, but plan the blind for privacy and expect condensation on cold glass.

Rules that apply in England

In England, new drainage and a new connection to the soil stack fall under Part H, a new bathroom needs extract of 15 litres per second intermittent or 8 litres per second continuous under Approved Document F, and new circuits are notifiable under Part P. If the work includes an unvented hot-water cylinder, it must be fitted by a G3-qualified installer.

More about loft bathrooms

Loft bathrooms in Carshalton: questions

How much does a loft bathroom cost in Carshalton?

A loft bathroom in Carshalton usually costs £8,100–£16,250 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 home survey in Carshalton 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.

Do you cover SM1 in Carshalton?

Yes. We cover all of Carshalton, including SM1, SM5 and SM6, and nearby Sutton, Mitcham and Morden. Survey visits are free and arranged at a time that suits you.

Is the water hard in Carshalton?

How much headroom do you need for a loft shower?

Plan for around 2 m of clear height over the whole shower area, and enough standing height in front of the basin and WC. A bath can sit lower under the slope as long as you can stand up where you get in and out. We mark the usable height at each position on the survey drawing.