- Postcode districts
- DA1
- Nearby
- Bexley, Swanley and Swanscombe
- Guide price
- £7,300–£14,500
- Typical time on site
- 6–12 working days
- Water
- Very hard across most of Kent
- Survey
- Free, at your home
What does a loft bathroom cost in Dartford?
As a guide, budget £7,300 to £14,500 including VAT for a loft bathroom in Dartford; your written quote will pin it down. Labour costs in South East England put local prices at about 12% above the UK guide figure. The figure depends on the size of the room, whether anything moves, and the products you pick.
Refit
- Existing loft shower room
Signature
- Fitted furniture to the eaves
New loft bathroom
- Ventilation and electrics to regulations
Guide prices for Dartford including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Dartford
In Dartford we cover DA1; we also cover Bexley, 2.8 miles away, and Swanley.
In Dartford, as anywhere, the age of the house decides a lot: pipe sizes, floor construction and where the soil stack runs. If your Dartford loft shower is weak or the waste drains slowly, the fix is often in the pump or the pipe fall rather than the shower itself. For a loft bathroom in a tank-fed Dartford home, we work out how the shower will get its pressure before choosing a single fitting.
Water across much of Kent is very hard. If your supply in Dartford 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
- An extractor fan ducted through the roof or a gable wall, with the duct insulated through cold spaces
- A check of the floor joists where a bath or large shower tray will sit
- Fitted furniture made to the eaves, so the low space behind the slope becomes storage
Decisions to make first
Eaves storage
Low cupboards built into the slope behind the WC or basin take clutter out of the room and hide the pipework.
Bath or no bath
A bath under the slope makes good use of low space, but the floor has to carry it when it is full of water and someone is in it.
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.

