JAG Construction · London
Service

Bathrooms

Bathrooms designed, built, tiled and finished by one team.

A JAG bathroom is delivered start to finish by the same team. We strip out, replumb, rewire, board, tile, fit, and finish. Most of our bathrooms are part of a wider refurbishment, but we do single-room bathrooms too — provided the project sits above our typical minimum.

Where most builders subcontract the tiling, the plumbing and the carpentry to three different firms who never meet, we do not. The same people who plumb the room set out the tiling. The same people who set out the tiling fit the brassware. Continuity matters, because a bathroom is small and the details show.

We work to your spec, your designer's spec, or — if you want — we will spec it ourselves. Tile, brassware, sanitary, lighting, joinery. We have suppliers we trust and we will tell you honestly which makes hold up and which do not.

The way we work on every bathrooms project.

Set out properly

Before a single tile is cut, we set out the whole room dry. Tiles, niches, brassware, drain falls. The cuts that end up at edges and corners are where the eye goes — and where the bad work shows. We plan them.

Tiled the long way

We do not use trim on external corners unless you specifically want it. Tiles are mitred at 45 degrees, two faces meeting at a clean edge. It is slower. It looks better.

Plumbed for life

Pipework runs in walls, not in boxing. Push-fit fittings only where they should be, soldered or pressed where they should not. Falls right across the floor on walk-in showers, not just under the head.

Lit on purpose

Bathroom lighting is more important than people realise. We plan it with you — a wash light over the basin, a feature light if you want one, dimmable downlights, no glaring single source. Lighting is wired before the boards go up.

Finished completely

Sealed, snagged, cleaned. The toilet roll holder is on the right wall. The towel rail is hot. The basin tap doesn't scuff your knuckle on the wall. These things are not small.

Recent bathrooms work.

Honest, specific, no price list.

Typical scope Full bathroom strip-out and refit. Typically one to two bathrooms, often as part of a wider renovation.
Typical timeline Three to five weeks for a single bathroom, depending on tile complexity and bespoke joinery.
Typical project size Single bathrooms from £25,000. Larger and dual-bathroom projects scale up from there.

Real questions, answered honestly.

Can you work to a designer's spec?

Yes. We work with interior designers and architects regularly. We will read the spec, flag anything that won't work as drawn (it does happen), and price the work as specified.

Do you supply the fittings or do I?

Either. If we supply, we charge cost plus a small handling margin and you get our trade pricing. If you supply, we will tell you the lead time you need to allow and what to order extra of. Tiles are always ordered with at least 10% extra for cuts and breakages.

Will my floor take a wet room?

Maybe. We can build up a fall in screed, lay a tray former, or in some cases drop the joists. We assess this on a site visit before quoting. A wet room is not always the right answer for an upstairs bathroom in a Victorian terrace.

How do you handle ventilation?

Properly. Every bathroom needs effective extraction — usually a fan ducted to outside, on a humidistat, with a run-on timer. We do not vent into a loft. We do not pretend a window does the job.

Related: Home renovations  ·  Internal remodelling  ·  Bespoke joinery

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