GS Renovation builds bathrooms across New Barnet, usually the one squeezed onto the back of a Victorian terrace over the kitchen, or a shower room carved out of a bedroom in a converted flat. The waterproofing, the drainage falls and the joists underneath decide whether it lasts, so that is where the work goes.
Bathrooms over the back addition in EN4
The bathroom in a New Barnet terrace is often a later addition sitting over the kitchen, on a suspended timber floor, with the soil stack fixed to the outside of the rear wall. That layout limits things. Moving the WC means a 110mm branch at a fall between 1 in 40 and 1 in 110 back to the stack, and there is only so far you can go before you need a new stack or a macerator, which we would rather avoid. We measure the run and the available depth before drawing a layout that cannot be built.
Under the floor is where bathrooms are quietly ruined. Pipes get run by notching joists deeply, in the middle of the span, which is exactly where the timber is working hardest. Notches belong near the bearings and stay shallow; holes go on the neutral axis. If the layout needs pipes across the joists in the wrong place, the answer is a different route or new timbers sized by an engineer. A bouncy bathroom floor is also the fastest way to crack a newly tiled floor.
Tanking, ventilation and flats across New Barnet
Tiles and grout are not waterproof. The wet zone gets a tanking membrane over a suitable board before a single tile goes on, the tray or the formed fall is checked to drain properly, and the junctions at the floor and the corners are taped rather than trusted to sealant. In a terrace the bathroom usually sits over a kitchen, so a slow leak shows up in someone's ceiling downstairs weeks later. Getting this right costs very little at the time and a great deal to put right afterwards.
In a converted flat the floor you are working on is your neighbour's ceiling, so the freeholder's licence to alter and the managing agent's requirements come first, and your buildings insurer will care about how the wet area was formed. Ventilation matters just as much: an extractor ducted properly to outside rather than into a void, with the run kept short. All the electrical work, from the shower circuit to the lighting and any underfloor heating, is carried out and certified under the Building Regulations.
- Floor strengthening before large-format tiles or stone
- Bespoke vanity units and storage
- Concealed cisterns, frames and wall-hung sanitaryware
- Shower pumps and pressure improvements where flow is poor
- Complete bathroom design and planning
Why New Barnet Homeowners Choose GS Renovation
New Barnet bathrooms fail at the parts nobody photographs: the tanking, the fall on the waste and the joists under the floor. GS Renovation builds those properly first and tiles afterwards, deals with the freeholder and managing agent where the property is a converted flat, and certifies the electrics under the Building Regulations. Founder led, fully insured, with 30+ years of hands-on experience in North London.
- Pipework pressure and leak tested before tiling starts
- Rated 4.9 from 31 reviews on MyBuilder
- Free, no-obligation quotations
- Photographs kept at each stage for your records
- Waste cleared as we go, not left piled in the garden
- Grout, silicone and trims detailed by hand at the end