Bathroom Renovation Brent

Bathroom and wet-room refurbishment in Brent, tanked, plumbed and tiled by one team.

GS Renovation refits bathrooms, en-suites and wet rooms across Brent, working with the tight, awkward spaces typical of the borough's mansion flats and period homes in NW6, NW10 and HA0. We tank and waterproof properly, sort the drainage and ventilation, and finish to a high standard.

In Brent, a full bathroom refit typically costs £6,000 to £20,000 or more (indicative London ranges, MyBuilder and Checkatrade, 2026). GS Renovation Ltd, a building contractor based in Potters Bar, does the work in Brent: we carry the tanking, plumbing and tiling as one contract, with the electrics certified by a registered electrician.

Price guide

WorkIndicative London range
Bathroom renovation, full refit£6,000 to £20,000+

Indicative London ranges (MyBuilder and Checkatrade, 2026), not a quotation. Prices checked September 2026. Full breakdown: Bathroom Renovation Cost.

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How the job runs

  1. Free design visit at your Brent home and an itemised quote.
  2. Strip-out, then first-fix plumbing and electrics.
  3. Tanking to the wet areas, then tiling.
  4. Sanitaryware and second fix, with notifiable electrics certified by a registered electrician. Typically 10 to 15 working days on site.
A walk-in shower built by GS Renovation, tiled in large format marble-effect porcelain with a lit recess
A low profile tray with a linear waste, black framed screen and a lit niche formed in the tiling.

Waterproofing and wet rooms in Brent flats

Getting the waterproofing right matters most in Brent's mansion blocks and period flats, because a leak affects the flat below and quickly involves the freeholder and managing agent. We tank the walls and floor before tiling, forming a fully sealed wet room or walk-in shower where the layout suits, and pay close attention to the falls so water reaches the drain rather than sitting on the floor.

Ventilation and drainage need real thought in these NW6 and NW2 flats, where soil stacks and extract routes are fixed and shared. We plan the pipework and a proper extractor to keep moisture down and protect the structure, and we build in sound insulation to the floor. Throughout, we work within the block's building-management rules and keep disruption to neighbours to a minimum.

Housing in Brent

For Brent the Council Tax list gives about 135,080 homes; by type 62% flats and 38% houses, by age 40% post-war, 32% interwar and 28% older than 1919. Most homes here are flats, and a bathroom in a flat in Brent sits over a neighbour's ceiling, so tanking comes first.

A new Brent bathroom above a neighbour, and what building control inspects

62% of homes in Brent are flats, so a new bathroom here often sits above someone else's bedroom or kitchen. That changes the priorities. The tanking under a walk-in shower, the fall of the waste and the seal around every pipe through the floor matter more than the tiles, because a slow leak shows up first in the flat below. Where the bathroom is moving, the new position has to reach the soil stack by gravity, and a pumped waste unit is a fallback rather than a plan. Agree access to the flat below with its owner in case a ceiling has to open for a pipe.

In Brent a building notice applies to residential use only and covers smaller projects such as creating a bathroom, so a new bathroom, as opposed to a refit in the same place, sits inside building control. Where Brent's own service is used, work on a notice can start once it is accepted, usually within 48 hours. The inspector looks at the drainage connection and the extract ventilation, and any new electrical circuit is certified by a registered electrician or notified. Keep the extract route in the drawings from the start, because a fan with nowhere to discharge is the item that holds up sign-off.

Space-saving bathrooms in Brent period homes

Bathrooms in Brent's Victorian terraces and interwar semis around Wembley and Harlesden are often small, carved out of a closet wing or the return at the back of the house. We plan the layout carefully to fit a decent shower, basin and WC, using wall-hung units, a walk-in enclosure and clever storage to make a tight footprint feel generous rather than cramped.

Underfloor heating frees up wall space and warms the tiled floor, and considered tiling and lighting lift the whole room. Where you want to add an en-suite off a bedroom, we run the drainage and ventilation to the right places and tank the space fully. New circuits and work near the bath or shower are notifiable under building regulations, so that work is certified by a registered electrician or notified to building control, and we hand over a room that is watertight and built to last.

  • En-suite creation in bedrooms and loft rooms
  • Walk-in showers and wet-room installation
  • Soil pipe and waste re-routing within the floor build-up
Service areaBrent · HA9, HA0, NW2, NW6, NW9 and NW10
Local authorityBrent Council
Part ofNorth West London (Outer London)
Typical homesPost-war and modern flats, Victorian terraces and interwar semis
Housing stock28% built before 1919, 32% interwar, 40% post-war; 62% flats, 18% terraced, 18% semi-detached or detached
Also covered nearbyEaling, Harrow, Barnet, Camden and Kensington and Chelsea

VOA Council Tax stock of properties, March 2025, for all 35 statistical areas in Brent. Counts rounded by the VOA.

Why Choose GS Renovation in Brent

Brent homeowners choose GS Renovation for bathrooms because we tank and waterproof properly, which matters above all in the borough's stacked mansion flats where a leak reaches the flat below. We handle drainage, ventilation, tiling, underfloor heating and the notifiable electrics as one job, working within leasehold building-management rules. Backed by our founder's 30+ years of watertight results.

Reviewed jobs near Brent

1 MyBuilder review from Wembley, with each customer's own job title:

  • Install new worktop, Wembley, 10 Jul 2024 (5 out of 5)

Read all 31 on our reviews page.

30+ YearsFounder's experience
Fully Insured5 year guarantee
4.9 / 531 MyBuilder reviews
Building ControlCompliant
Free QuotesNo obligation
Reviews

Rated 4.9 / 5 by our clients

★★★★★ 4.9 average from 31 verified reviews on MyBuilder

★★★★★
Saiid did a complete refurbishment of our small bathroom. This involved ripping out the existing bath/shower, basin, toilet, pipework, and tiles and…
mr52782Barnet · via MyBuilder
★★★★★
I am very happy to recommend George after he completed the work on my 2 bathrooms. He worked very hard to make sure everything was completed and even…
hit10Enfield · via MyBuilder
★★★★★
The kitchen has been fitted to the high standard. Saaid was polite, professional, tidy, he pays attention to a little details that make huge…
khalid75711Barnet · via MyBuilder
Read all 31 reviews

FAQ

Frequently Asked Questions about Bathroom Renovation Brent

How accurate is a bathroom renovation quote for a Brent house?

A bathroom renovation quote for a Brent house is accurate when it is written after a survey rather than before one. GS Renovation inspects the HA9 property and prices the work, including Part P certification for any new circuit or work in the bath and shower zones, against £6,000 to £20,000 or more (indicative). The figure holds unless the specification changes or opening up the purpose-built post-war property reveals something hidden, and both risks are explained first.

Can you fit a wet room in my Kilburn mansion flat?

Usually yes, provided the floor build-up and drainage allow the correct falls. We fully tank the space, form the falls to the drain and add proper ventilation to protect the structure and the flat below. As Kilburn mansion blocks are leasehold, we coordinate with the managing agent, observe the building-management rules and build in sound insulation to the floor.

How long will a bathroom refit in my Brent flat take?

Plan on 10 to 15 working days. Block rules can stretch that, since noisy work such as breaking out old tiles may be limited to set hours. Order matters more than speed: waste falls are set before the tray, tanking goes on before any tile, and the electrician certifies new circuits before handover.

Can the toilet move within my Brent flat bathroom?

Only a short way. Its waste must join the shared soil stack serving the flats above and below, with a steady fall, so the stack position fixes the layout. Crossing the room means running along the joists or raising the floor. Moving the whole bathroom elsewhere in the flat usually needs the freeholder's written consent, because it puts water over a neighbour's living space.

Will a Brent flat get a strong enough shower?

That depends on how the hot water arrives. A combi gives mains pressure but shares its flow between outlets; an unvented cylinder gives more, if there is room for one; and flats fed from a tank in the roof space may need a pump. The incoming main is tested at survey so the shower valve and head suit what the supply can deliver.

Where does the extractor in a Brent flat bathroom vent to?

Outside, as Part F requires, never into a ceiling void or a sealed shaft. An internal bathroom in a block often ducts to an existing outlet on the elevation, since the lease may bar new holes in the outside wall. The duct runs with a slight fall away from the fan so condensation cannot drip back into the room.

Can the floor of a pre-1919 Brent house take a heavy stone or cast iron bath?

Sometimes, once the joists are checked. 28% of Brent's homes were built before 1919, and joists of that age have often been notched by earlier plumbers, sometimes deeply near their bearings. A filled cast iron or stone bath is a concentrated load on a small area. The structural engineer we appoint looks at the joist size, span and damage and may add a spreader or extra joists before the bath goes in.

Where does the extract vent go for a new bathroom in a newer Brent flat?

Into whatever the building was designed with. 23% of Brent's homes were built in 2000 or later, and a flat of that age may have whole-house ventilation or a shared extract riser, and a facade the freeholder controls. A new wall vent may not be allowed. Find the ventilation strategy in the building manual, connect to the existing system where it serves the room, and have the airflow rechecked after the refit.

Is an en-suite a separate item in Brent's building control charges?

Yes. Brent's building regulation charges guide lists installing a new bathroom, toilet, en-suite or kitchen as its own item at the full charge, under LB Brent Charges Scheme No 13, effective from 1 January 2022. An en-suite added alongside a larger job should appear on the application by name, so its drainage is inspected. Check the scheme in force on the application date, as a newer one may apply.

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