Dark bathroom with a sculpted stone vessel basin, black wall taps and warm light

Bathroom design & installation

Bathrooms, forged with care.

Designed with you, fitted by our own team, finished like it matters. One fixed price, one point of contact, and a room you’ll want to start every day in.

  • Free design visitAt home, measured properly, no hard sell.
  • Fixed-price quoteItemised line by line. The number doesn't move.
  • One team, start to finishThe same fitters from strip-out to sealant.
  • 10-year guaranteeOn our workmanship, in writing.

Why “Lava”

We build bathrooms the way the earth builds stone: in layers, under pressure, made to last. Tanking you’ll never see. Falls you’ll never notice. Grout lines that land exactly where they should. Then the part you will see, every single morning.

Design studio

Try it on before you buy it.

Swap tiles, timber, brassware and floor in real time. Flick to evening to see the lighting. When you like it, send it straight to us and we’ll bring samples to your design visit.

Live bathroom elevation A bathroom wall elevation that updates as you choose finishes.
LayoutFreestanding bath
Wall tileLarge-format
Wall colourBasalt
VanityNatural oak
BrasswareBrushed brass
FloorLimestone
Bath finishGloss white

Signature spec, typical 6m² room

£11,600 fitted, guide

Book a visit with this design

How we work

Five steps. No surprises between them.

Most bathroom horror stories start with a vague quote and three different trades who never meet. We do it differently: one designer, one fixed price, one team.

See the full process
Fitter tightening a pipe fitting during installation
  1. 01

    Design visit

    We come to you, measure everything, look under the floor where we can, and listen. You'll leave the visit with honest advice and a rough budget, not a sales pitch.

    Free · about 45 minutes
  2. 02

    Design & visualise

    Scaled plans and a visual of your new room, with tile, brassware and furniture samples to hold in your hand. We revise until it's right.

    1–2 weeks
  3. 03

    Fixed-price quote

    Every item and every task, priced line by line. Once you sign it, the price is fixed. If we find a surprise behind a wall, that's on us to plan for.

    Itemised · no hidden extras
  4. 04

    The fit

    One dedicated team from strip-out to sealant. Dust sheets down, daily tidy, a WhatsApp group with photos so you always know what's next.

    Typically 1–3 weeks
  5. 05

    Handover & aftercare

    A snagging walk-round together, care notes for every finish, and a workmanship guarantee in writing. We check back in after the first month.

    10-year guarantee

Recent rooms

Rooms people linger in.

Family bathroomThe Basalt SuiteSculpted stone basin, black wall taps, a frameless shower and warm wall-washer lighting.
Family bathroomPlaster & BlushLime-plaster finish, pebble floor inlay and a blush freestanding bath.
EnsuiteCalacatta TwinBook-matched marble-effect porcelain, twin basins, brushed brass throughout.
Wet roomGlass & LightFrameless walk-in screen, linear drain and a warm walnut vanity.
Wet roomGraphite Wet RoomLarge-format stone-effect tile wall to wall, backlit round mirror.
EnsuiteThe Oak Slat EnsuiteOak slat feature wall, inset bath and a concealed-cistern WC.
CloakroomSage CloakroomSage plaster, stone basin and an oak floating shelf vanity.
Family bathroomDark SpaMoody slate tones, a deep soaking tub and matt black brassware.

Cost guide

What will it actually cost?

No “prices on application”. Tell us about your room and get an honest guide figure in seconds, then we’ll fix it after the design visit.

1 What room?
2 Roughly how big?
6 m²

Floor area. A typical UK family bathroom is 4–7m². Not sure? Leave it on the default for your room.

3 Finish level
4 Anything extra?
5 Products
Marble vessel basin with a brushed brass wall spout
10-year guaranteeOn every installation, in writing.

The bits you never see

Built in layers. Like the stone.

Every Lava bathroom is tanked, boarded and levelled before a single tile goes on, and we photograph each layer so you have a record of what’s behind your walls.

  • Manufacturer-backed tanking systems
  • Laser-levelled walls and floors
  • Gas and electrics by registered engineers
  • Photo log of every hidden layer
About Lava

Good questions

Before you ask…

Anything else, call 0800 000 0000 and talk to a person who fits bathrooms for a living.

All FAQs
How much does a new bathroom cost?

Most of our family bathrooms land between £8,500 and £18,000 fitted, depending on size, layout changes and the products you choose. Try the cost guide for a figure based on your room, then we'll fix it properly after the design visit.

How long will it take?

A cloakroom is usually under a week. Ensuites run 1.5–2 weeks, and family bathrooms and wet rooms 2–3 weeks. You'll get a day-by-day plan before we start.

Do you supply the products or can we?

Either. We can supply everything through our trade accounts, often below retail, or fit products you've bought. We'll check anything you buy before it's delivered.

Who will actually be in my house?

Our own fitting team, led by the same person from day one to handover. Electrics and gas are done by qualified, registered engineers, and you'll know who's coming each day.

See it before we build it.

Book a free design visit. We’ll measure up, talk through ideas and send you a scaled plan with a fixed-price quote. No pressure, no pushy follow-ups.

Concept design · not the official website