En-suites in Harrow

Postcode districts: HA1, HA2, HA3, HA5, HA7
Nearby: Brent, Wembley and Northolt
Guide price: £5,600–£11,250
Typical time on site: 4–8 working days
Water: Very hard across most of Greater London
Survey: Free, at your home

What does an en-suite cost in Harrow?

For Harrow, our guide range for an en-suite is £5,600 to £11,250 including VAT. 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

£5,000–£8,800

Shower, basin and WC replaced

Typical

Upgrade

£7,500–£12,000

Full-height porcelain tiling

New en-suite

£8,800–£17,500

Formed inside an existing bedroom

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

Working in Harrow

In Harrow we cover HA1, HA2, HA3 and 2 more postcode districts; we also cover Brent, 2.2 miles away, and Wembley.

London homes in Harrow often mean stairs, permits and neighbours below; we plan the logistics as carefully as the bathroom. If you live in a Harrow flat, check the lease before planning a new en-suite, as freeholder consent is often needed for new drainage and vents. If the en-suite in your Harrow home was squeezed in by a previous owner, a refit is a chance to fix the door swing and the tray size.

Supplies across most of Greater London are very hard. If your supply in Harrow 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 shower tray or level-access former, an enclosure or walk-in panel, and a thermostatic valve
A survey that traces the route from the en-suite to the soil stack and checks the fall the waste pipes would need
IP-rated lighting, a shaver socket and the electrics done by a qualified electrician, tested and certified
Stud walls with acoustic insulation and moisture-resistant board for a new en-suite

Decisions to make first

Shower size

A 900 mm square tray is a comfortable minimum for an enclosure. In a long, narrow room, a 1200 by 800 mm walk-in tray with one glass panel feels far more generous.

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.

More about en-suites

En-suites in Harrow: questions

How much should I budget for an en-suite in Harrow?

An en-suite in Harrow usually costs £5,600–£11,250 including VAT. Room size, layout changes and your choice of products move the figure within that range. The free survey gives you an itemised quote, fixed in writing once the details are agreed.

Who handles building control for an en-suite in Harrow?

Building control for Harrow 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 an en-suite take?

Allow 4–8 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 Harrow.

Is the home survey in Harrow 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.

What extractor fan does an en-suite need?

In England, a new en-suite needs extract ventilation of at least 15 litres per second if the fan runs intermittently, or 8 litres per second if it runs continuously. Duct it to outside, keep the duct run short, and choose a quiet fan with an overrun timer, because it sits next to a bedroom.