Loft bathrooms in Horsham

Postcode districts: RH12
Nearby: Crawley, Horley and Haywards Heath
Guide price: £7,300–£14,500
Typical time on site: 6–12 working days
Water: Hard across most of West Sussex
Survey: Free, at your home

What does a loft bathroom cost in Horsham?

Our guide price for a loft bathroom in Horsham is £7,300–£14,500 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

£6,200–£9,500

Shower, basin and WC replaced

Typical

Signature

£9,000–£14,500

Pump or macerator where needed

New loft bathroom

£11,250–£20,250

Formed in an existing loft room

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

Working in Horsham

In Horsham we cover RH12; we also cover Crawley, 7.2 miles away, and Horley.

In Horsham, as anywhere, the age of the house decides a lot: pipe sizes, floor construction and where the soil stack runs. For a loft bathroom in a tank-fed Horsham home, we work out how the shower will get its pressure before choosing a single fitting. If your Horsham home has a gravity-drained WC on another floor, a macerator in the loft may open up more layout options.

Most of West Sussex has hard water. If your supply in Horsham 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 drainage route from the loft to the soil stack with enough fall, or a pumped waste or macerator where the rules allow it
Electrics by a qualified electrician, tested and certified, then tiling, testing and handover
A survey of the headroom across the room, with the usable height marked at each fitting position
An extractor fan ducted through the roof or a gable wall, with the duct insulated through cold spaces

Decisions to make first

Gravity or pumped waste

Gravity is silent and maintenance-free. A pumped waste or macerator lets fittings sit away from the stack, provided the house has a WC on gravity drainage elsewhere.

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.

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 Horsham: questions

How much does a loft bathroom cost in Horsham?

A loft bathroom in Horsham usually costs £7,300–£14,500 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.

Who handles building control for a loft bathroom in Horsham?

Building control for Horsham 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 loft bathroom take?

Allow 6–12 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 Horsham.

Is the home survey in Horsham 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.

Electric shower or pumped shower in a loft?

An electric shower heats cold mains water as it flows, so it works in a loft whatever your hot-water system, but its flow is lower than a good pumped or mains-pressure mixer and it needs its own electrical circuit. A pumped mixer gives a stronger shower on a gravity system. See choosing a shower for the full comparison.