Bathroom Renovation Edgware
Bathroom and wet-room refurbishment in Edgware, tanked, plumbed and tiled by one team.
- Rated 4.9 from 31 reviews on MyBuilder
- London guide: £6,000 to £20,000+
- Free design visit, itemised quote
GS Renovation renovates bathrooms across Edgware and the HA8 postcode, working within the 1930s semi-detached and interwar houses that fill the area. We deliver fully waterproofed bathrooms, wet rooms and en-suites, handling the tanking, drainage, tiling and finishing as one team.
In Edgware, 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 Edgware: 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 Edgware
Edgware range: choose above
How the job runs
- Free design visit at your Edgware 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.
Waterproofing and wet rooms in Edgware
A bathroom that lasts starts with proper waterproofing. In Edgware's interwar houses, where floors and walls can be uneven after decades of settlement, we tank the wet areas thoroughly before any tile goes on, so water never reaches the structure behind. For a wet room or walk-in shower, the tanking, the falls to the drain and the ventilation all have to be right, and we detail these carefully to avoid the damp problems that plague poorly built bathrooms.
We handle the drainage and extraction that older houses often lack, running new soil and waste connections and fitting effective ventilation to clear moisture. Underfloor heating can be laid beneath the tiles for comfort and to help the room dry, and we finish with fully tiled walls and floors. The result is a bathroom that stays dry, warm and sound in your HA8 home for years.
Housing in Edgware
Edgware's housing, as the Council Tax list records it, is about 18,930 homes: 62% houses, 38% flats, with 2% pre-1919, 57% interwar and 41% built since 1945. 39% of homes here are semi-detached; a semi in Edgware can vent its bathroom through the flank.
Where the soil stack runs decides an Edgware bathroom layout
In a house built between 1919 and 1939 the bathroom was placed beside an outside soil pipe, and 57% of Edgware homes date from those years. Moving the WC away from that stack is limited by the floor. The waste needs a continuous fall, and it can only run inside the floor if the joists run the same way as the pipe. Across the joists, the pipe has to be boxed below the ceiling or the WC raised on a plinth. We lift boards at survey to see the joist direction before any layout is drawn, and an old cast iron stack is checked for cracked collars and replaced in plastic where the new connection would disturb it.
Newer homes limit the floor in a different way. 19% of Edgware homes were built in 2000 or later, and a floor of that age may use engineered joists whose webs can only be cut at positions the manufacturer allows, if at all. A level access shower then needs a raised floor or a tray former set within the build-up, not a recess cut between the joists. In a flat, the floor structure belongs to the building, so a wet room needs the freeholder's agreement and a waterproofing detail that protects the home below. Ask for the floor construction drawings before choosing a level access design.
En-suites and layouts for HA8 homes
The bathrooms in Edgware's 1930s semis are often small and awkwardly shaped, tucked over the stairs or squeezed beside a chimney breast. We plan space-saving layouts that make the most of a tight period footprint, choosing sanitaryware and shower enclosures that suit the room rather than crowd it, and using the alcoves that interwar houses tend to offer.
Adding an en-suite to a main or spare bedroom is a popular upgrade in these houses, and we manage the new drainage, waterproofing, ventilation and electrics that it requires. The notifiable electrical work in a bathroom is certified by a registered electrician under Part P, or notified to building control. From a compact en-suite to a full family bathroom, we deliver a watertight, well-ventilated room finished to a high standard across your Edgware home.
- Walk-in showers and wet-room installation
- Pressure and leak testing before any tiling starts
- Concealed cisterns, frames and wall-hung sanitaryware
VOA Council Tax stock of properties, March 2025, for all 5 statistical areas in Edgware. Counts rounded by the VOA.
Why Choose GS Renovation in Edgware
Edgware homeowners choose GS Renovation because a bathroom is only as good as its waterproofing and drainage, and we get those right first. We tank thoroughly, sort ventilation and falls, have the electrics certified by a registered electrician under Part P, and finish with quality tiling and underfloor heating. With our founder's 30+ years on the tools, we build bathrooms that stay dry and look right in these interwar homes.
Saiid did a complete refurbishment of our small bathroom. This involved ripping out the existing bath/shower, basin, toilet, pipework, and tiles and…
George was a great find. The job required re-plastering the walls before fitting acrylic panels. He also re-plumbed the shower waste under the solid…
The kitchen has been fitted to the high standard. Saaid was polite, professional, tidy, he pays attention to a little details that make huge…
FAQ
Frequently Asked Questions about Bathroom Renovation Edgware
How does your bathroom renovation price in Edgware compare with a national firm's?
National and local totals for bathroom renovation in Edgware are usually closer than the structures behind them, within £6,000 to £20,000 or more (indicative). A national firm subcontracts the work and prices its overhead into your quotation; GS Renovation carries out the HA8 job itself. Ask both for the same breakdown, and check that each prices the work in its proper order: the waste run is fixed before the tray goes down.
Does a new bathroom need building regulations approval?
Yes, where drainage, structural or electrical work is involved, and in Edgware that goes through Barnet Council, Harrow Council for homes on the Canons Park side, west of the High Street, or a registered building control approver; notifiable electrics can instead be certified by a registered electrician under Part P. Replacing like for like fittings alone is not notifiable.
Can a loft bathroom be added with a dormer on an Edgware house?
At the rear, yes, but Barnet's draft design guidance says front dormer windows will generally not be supported. The same guidance asks that chimney pots and stacks, party walls and ridge tiles be retained and worked into any first floor or two storey side extension. That matters when a soil pipe or a rooflight lands near the ridge. A rear dormer with the shower room against the party wall keeps drainage runs short and the front elevation unchanged.
Can a shower room go into a basement under an Edgware house?
Yes, subject to Policy CDH06, which tests the site's suitability against ground conditions, land instability, contamination and ground water before anything else. Barnet's draft guidance sets a minimum internal head height of 2.5 metres for habitable rooms, limits basements to a single storey and requires internal access from the main building rather than a separate entrance. Ground water is the practical risk here, so a tanked design and a sump with a pump are the honest baseline.
Does flood risk affect a downstairs bathroom or new drainage in Edgware?
Yes near the brooks, because a point check at Edgware town centre returns Environment Agency records for both Flood Zone 2 and Flood Zone 3, and Barnet's Local Plan confirms surface water flood risk on the station site. New below ground drainage in those areas needs non return valves, and a ground floor WC set low can back up when the sewer surcharges. The drainage design should be agreed with the water authority before the floor is closed up.
Does a locally listed Edgware house need consent to strip out a bathroom?
No, local listing does not itself require listed building consent, so an internal bathroom refit is not caught. Barnet's Local Plan keeps a local list alongside the statutory list, and Policy CDH08 Part E treats locally listed buildings as non designated heritage assets subject to a balanced judgement on harm against public benefits. Original sanitary ware, tiling or a stained glass window still add value, so removing them is a choice, not a requirement.
Can we add en-suites to every bedroom and let the rooms in our Edgware house?
The building work is a bathroom project, but letting rooms to sharers is a change of use. On the Barnet side of Edgware, the Article 4 direction on small houses in multiple occupation has a start date of 29 May 2016 on the Planning Data record. It takes away the permitted development right to turn a family house into a small HMO, so planning permission comes first. Get that decision before the en-suites are built, because it can change how many rooms are worth fitting out.
Is the old cast iron soil stack on our Edgware house worth keeping?
Only if it is sound along its full length. On a house built between 1919 and 1939 the stack may be the original, and cracks usually open at the back, against the wall, where they are hard to see. A leaking joint soaks the brickwork and can show as damp inside the new bathroom. We inspect it from a ladder or scaffold before tiling starts. 57% of Edgware homes date from those years, so allow for a replacement stack in the programme.
What will a freeholder want to see before an Edgware flat bathroom is refitted?
A description of the work, drawings if anything moves, and the waterproofing and waste details that protect the flat below. A lease may also ask for the contractor's insurance certificate and set hours for noisy work. 38% of Edgware homes are flats, so for a large share of homes here this approval belongs in the programme. Apply before ordering sanitaryware, because a refusal to move the WC or shower changes the whole layout.
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