- Postcode districts
- SN1, SN2, SN3, SN5
- Nearby
- Calne, Cirencester and Carterton
- Guide price
- £6,600–£13,250
- Typical time on site
- 6–12 working days
- Water
- Hard across most of Wiltshire
- Survey
- Free, at your home
What does a loft bathroom cost in Swindon?
Our guide price for a loft bathroom in Swindon is £6,600–£13,250 including VAT. The figure depends on the size of the room, whether anything moves, and the products you pick.
Refit
- Shower, basin and WC replaced
Signature
- Pump or macerator where needed
New loft bathroom
- Formed in an existing loft room
Guide prices for Swindon including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Swindon
As well as Swindon itself (SN1, SN2, SN3 and 1 more postcode districts), we survey in Calne, Cirencester and Carterton.
In a city the size of Swindon, parking and access for a skip are worth sorting before the start date — we will ask at the survey. If your Swindon loft conversion has a bedroom but no bathroom, the survey starts with where the soil stack runs and how much headroom you have. If your Swindon 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.
Water across much of Wiltshire is hard. If your supply in Swindon 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
- A survey of the headroom across the room, with the usable height marked at each fitting position
- A check of your hot-water system and of the pressure and flow you actually get at loft level
- Fitted furniture made to the eaves, so the low space behind the slope becomes storage
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.

