Bathroom Renovation Hampstead
Bathroom and wet-room refurbishment in Hampstead, tanked, plumbed and tiled by one team.
- Rated 4.9 from 31 reviews on MyBuilder
- London guide: £6,000 to £20,000+
- 10 to 15 working days on site
- Free design visit, itemised quote
GS Renovation fits bathrooms and wet rooms across Hampstead, working within the period cottages and Victorian and Edwardian terraces of NW3. We handle the waterproofing, drainage, tiling, heating and ventilation as one job, delivering en-suites and family bathrooms that are properly built rather than simply refreshed on the surface.
In Hampstead, 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 Hampstead: we carry the tanking, plumbing and tiling as one contract, with the electrics certified by a registered electrician.
Price guide
| Work | Indicative 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.
Quick estimate for Hampstead
Hampstead range: choose above
How the job runs
- Free design visit at your Hampstead home and an itemised quote.
- Strip-out, then first-fix plumbing and electrics.
- Tanking to the wet areas, then tiling.
- Sanitaryware and second fix, with notifiable electrics certified by a registered electrician. Typically 10 to 15 working days on site.

Wet rooms and en-suites in Hampstead
Bathrooms in a Hampstead terrace often sit in the rear closet wing or a converted return, where the floor is timber and space is tight. Before any tile goes down we tank and waterproof the area fully, forming the falls for a level-access wet room or walk-in shower so water drains properly and never finds its way into the structure below or the room next door.
Turning a spare corner into an en-suite is a favourite NW3 upgrade, particularly in the loft and closet-wing conversions common here. We route new drainage and soil connections carefully through the period fabric, fit a pump where the gravity falls are limited, and provide proper mechanical ventilation to control the condensation that damages plaster and decoration in the older solid-walled homes found right across the neighbourhood.
Housing in Hampstead
Around 11,670 homes make up Hampstead on the valuation list; 78% are flats and 22% houses, and 63% date from before 1919, 10% from between the wars and 27% from after 1945. Since most homes here are flats, a bathroom in a flat in Hampstead sits over a neighbour's ceiling, so it is tanked before tiling and a moved WC needs the freeholder's licence.
The separating floor under a Hampstead conversion bathroom
With 63% of Hampstead homes built before 1919 and 78% of them flats, a new bathroom here often sits on a timber floor that is also the boundary between two homes. When a period house was converted, that floor was meant to separate the flats for fire and sound. Lifting boards to run a new waste, notching joists for a trap, or dropping a shower tray flush with the floor can all cut through what is left of that separation. The damage is then hidden in the ceiling of the flat below.
So in a Hampstead conversion flat we open one section first and record what the floor contains before the layout is fixed. The structural engineer we appoint checks whether the joists can take the notching or need strengthening, and any break in the separating layers is rebuilt to at least what was there. Where the job is building work, a leaseholder also needs the freeholder's consent and a full plans application with Camden, so we submit the floor details with the plans rather than leave them for site.
Space-saving layouts for NW3 terraces
Period bathrooms in Hampstead are rarely large, so a clever layout really matters. We plan the sanitaryware around the sloping ceilings, chimney breasts and narrow floor plans typical of these Victorian and Edwardian houses, using wall-hung units, compact showers and recessed niche storage to win back usable space. The aim is a room that works day to day without ever feeling cramped or the fittings looking awkwardly squeezed in.
Comfort comes as standard. Underfloor heating warms a tiled floor without taking up wall space for radiators, and we can pair it with heated towel rails and good lighting. The tiling, first and second fix plumbing and the electrics are all coordinated by one team, with bathroom circuits certified by a registered electrician under Part P, so the finished room is safe, warm and built to last.
- Full plumbing, drainage and waterproofing (tanking)
- En-suite creation in bedrooms and loft rooms
- Complete bathroom design and planning
VOA Council Tax stock of properties, March 2025, for Hampstead Town, Frognal and Fitzjohns & Royal Free. Counts rounded by the VOA.
Why Hampstead Homeowners Choose GS Renovation
Hampstead homeowners choose GS Renovation because we get the parts you cannot see right, the tanking, the drainage falls and the ventilation, before the tiling ever begins. We plan space-saving layouts for these tight period rooms, have the electrics certified by a registered electrician under Part P, and bring our founder's 30+ years of fitting durable bathrooms and en-suites.
Saiid did a complete refurbishment of our small bathroom. This involved ripping out the existing bath/shower, basin, toilet, pipework, and tiles and…
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…
George always kept to commitments and arrived on time. He offered helpful suggestions during his initial visit and promptly provided a reasonably…
FAQ
Frequently Asked Questions about Bathroom Renovation Hampstead
What is included in your bathroom renovation price in Hampstead?
A GS Renovation price for bathroom renovation in Hampstead includes everything needed to finish the work and get it signed off, within £6,000 to £20,000 or more (indicative). That covers labour, materials, any Part P electrical certificate, Part P certification for any new circuit or work in the bath and shower zones, and making good. Anything uncertain at the NW3 property is flagged before starting rather than added later.
Can you fit a wet room in the closet wing of my Hampstead terrace?
Yes. Closet-wing and return bathrooms in NW3 usually have timber floors, so we tank and waterproof the whole area and form proper falls before tiling, giving a level-access wet room that drains reliably. We add mechanical ventilation to manage condensation and route new drainage through the period structure. The electrics are certified by a registered electrician under Part P.
How long does a Hampstead bathroom renovation take?
Typically 10 to 15 working days, depending on the size and whether there is tanking and underfloor heating to cure. In a Hampstead house with a second bathroom, the family can keep using that one throughout. In a single bathroom flat, we plan the days when the water supply is off and reconnect the toilet overnight where we can.
Does electric underfloor heating in a Hampstead bathroom need a separate circuit?
Usually it does, and any new circuit in a bathroom is notifiable under Part P, certified by a registered electrician. The heating mat sits under the tile adhesive, with insulation board beneath it on a timber floor so the heat goes up rather than into the joists. The thermostat and connection unit sit outside the wet zones, which the electrician sets out before tiling starts.
Can a loft en-suite in a Hampstead house drain without a pump?
Only if there is enough fall to reach the soil stack. In a Hampstead loft conversion the stack may be on the opposite side of the house, and the waste pipe needs a steady gradient through or between the joists. Where that is not possible, a pump or macerator unit handles the waste. It works, but it needs power, access for maintenance and some noise tolerance.
Is a walk-in shower in a Hampstead flat a risk to the flat below?
Only if the waterproofing is wrong, which is why it is done in a strict order. The floor is built up and strengthened, the falls are set before the tray or former, and tanking goes on before any tiling. In a Hampstead flat a leak goes straight into a neighbour's ceiling, and moving a bathroom usually needs the freeholder's written consent.
Does moving the bathroom in a Hampstead leasehold flat need a full plans application?
If the move is building work, such as a new drainage run or a new wall, yes. Camden requires a leaseholder to have the freeholder's consent and to make a full plans application rather than a building notice. The decision comes within 6 weeks, or 2 months for more complex proposals. Order the sanitaryware and tiles to arrive after that date, since a suite on site before approval only takes up room.
What should a new bathroom in a small Hampstead cottage allow for?
Space for the soil pipe as much as for the bath. The site describes Hampstead's housing as period cottages and substantial Victorian villas, and in a cottage the ceilings are low and there is little depth in the floor for a waste to fall. A bathroom placed where the soil pipe can drop straight down avoids boxing across a low ceiling below. We plan the pipe route first and the fittings around it.
When does Camden sign off a Hampstead bathroom that needed building control?
Camden issues a completion certificate once a surveyor has inspected the completed work and found it complies, other certificates have been received and the charges are paid. For a bathroom the other certificates can include one for a new shower circuit or electric underfloor heating. We collect them during the job, so the final inspection is booked for the week the tiling is finished rather than months later.
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