- Postcode districts
- PO1, PO2, PO3, PO4, PO5, PO6
- Nearby
- Gosport, South Hayling and Fareham
- Guide price
- £5,000–£10,000
- Typical time on site
- 4–8 working days
- Water
- Hard across most of Hampshire
- Survey
- Free, at your home
What does an en-suite cost in Portsmouth?
Guide price in Portsmouth: £5,000–£10,000 including VAT, depending on the room and what you choose. Prices in South East England run at about 12% above the national guide, mainly because of labour rates. The figure depends on the size of the room, whether anything moves, and the products you pick.
Refit
- Shower, basin and WC replaced
Upgrade
- Full-height porcelain tiling
New en-suite
- Formed inside an existing bedroom
Guide prices for Portsmouth including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Portsmouth
In Portsmouth we cover PO1, PO2, PO3 and 3 more postcode districts; we also cover Gosport, 1.7 miles away, and South Hayling.
Portsmouth is a big place with every kind of home, from terraces to flats to new builds, so we never price from a photo alone. We quote new en-suites in Portsmouth only after checking the drainage route on site, so the price reflects the work your house actually needs. If your Portsmouth home has one bathroom and a good-sized main bedroom, an en-suite is often the change that eases the morning queue.
Supplies across most of Hampshire are hard. If your supply in Portsmouth 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
- An extractor fan ducted to outside, sized to the room and wired with an overrun timer or humidistat
- A pumped waste or macerator where gravity drainage is not possible, and only where the house already has a WC on gravity drainage
- Stud walls with acoustic insulation and moisture-resistant board for a new en-suite
- A door that suits a tight space: inward, outward, sliding or a pocket door
Decisions to make first
Night lighting
A mirror light or low-level LED strip on its own switch lets you use the en-suite at night without the full glare of the ceiling lights.
Refit or new en-suite
A refit keeps the existing drainage and walls. A new en-suite costs more because the walls, waste route, fan duct and electrics all start from nothing.
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.

