Freestanding bath in a recently completed Greencore bathroom installation
Service · North East England

Bathroom Installation in Darlingtonand the North East —designed, plumbed and finished by one team

Full-design-and-fit bathrooms by a single trusted team — survey, 3D design, plumbing, tiling, electrics, joinery and decoration — typically completed in 7–14 days with a fixed written quote and a 12-month workmanship guarantee.

Single trusted team · 3D design before you commit · 12-month workmanship guarantee

Single team
From rip-out to handover
3D design
Before you commit a penny
7–14 days
Typical install timeline
12 mo
Workmanship guarantee
Fixed
Written quote upfront
Service Overview

What you need to know

What it is

A full bathroom installation covers strip-out, alterations to plumbing and electrics, plastering, waterproofing, tiling, sanitaryware installation, joinery, lighting, ventilation, decoration and final commissioning — all completed by a single in-house team with one project manager.

Who it's for

Homeowners refurbishing a tired bathroom, families converting a bath-only room into a shower room, anyone fitting an en-suite into a bedroom, landlords upgrading rental properties, and downsizers wanting a contemporary, low-maintenance bathroom.

When you need it

When your bathroom is over 15 years old, when fixtures are leaking, grout is failing or tiles are tired, when you're remodelling a home, when adding an en-suite, or when preparing a property for sale (a modern bathroom is the #2 ROI improvement after kitchen).

Why professional matters

Most 'cheap' bathroom installs fall over because they use 3–4 different trades managed by the homeowner. Plumbers blame tilers, tilers blame electricians, electricians blame plasterers — and nothing matches. A single in-house team eliminates the gaps, the delays and the blame game.

What it costs to delay

The real consequences of putting it off

A poorly installed bathroom doesn't just look bad — it leaks, rots, and devalues your home:

Hidden leaks under the floor

Push-fit fittings tucked into voids, untested before tile-down. Months later, the kitchen ceiling stains and £6,000 of damage emerges.

Failed waterproofing

Cement-board tile backer without a tanking membrane, walk-in shower trays with the gradient on the wrong axis, silicone joints in place of mastic — all leak within 18 months.

Failed extractor / mould

Undersized or improperly ducted extraction grows black mould in the silicone within a year.

Electrical non-compliance

Zone 1/2 lighting and sockets done by non-Part-P-certified installers — a fire and shock risk that fails any future EICR.

No real warranty

Self-managed projects have no single party to hold accountable. We've replaced cheap installs in their second year more times than we can count.

Common mistakes we fix

Buying the suite before the design

Suite chosen on aesthetics, then forced into a room that can't accommodate it. Always design first, choose to fit.

Skimping on the substrate

Tile-backer board, primer, decoupling membrane — these are not optional. Skipping them leads to grout failure and tile crack-out within months.

DIY electrics

Bathroom electrics are notifiable under Part P. Skip the certificate and your insurance is void.

Our Process

A predictable, engineered process

  1. STEP 01

    In-home consultation

    We measure, photograph, discuss budgets, lifestyle and wish-list. Honest scope conversation — what's possible, what's worth doing, what isn't.

  2. STEP 02

    3D design & specification

    Full 3D visual walk-through of your bathroom before any work starts. Suite, tiles, layout and lighting all to-scale. Iterate until you love it.

  3. STEP 03

    Fixed quote & schedule

    Itemised written quote: every fitting, every fixture, every trade. Locked-in dates, locked-in price. No 'extras' day-of-install.

  4. STEP 04

    Installation (typical 7–14 days)

    Strip-out, alterations, first-fix plumbing & electrics, plastering, waterproofing, tiling, second-fix, sanitaryware, joinery, lighting, ventilation, decoration. One project manager, daily clean-up, dust-screened.

  5. STEP 05

    Snag, commission & handover

    Pressure-test, leak-test, electrical compliance certificate, extractor flow test, snag walk-through, full clean. Operating instructions for showers, controls and lighting. 12-month workmanship guarantee.

Why it pays off

Outcomes you can measure

One team, one accountability

Plumbing, tiling, electrics, joinery and decoration delivered by Greencore engineers under one roof.

3D design — no surprises

Walk through your bathroom in 3D before any tile is cut. Layout regrets eliminated up front.

Fixed price, no 'extras'

What we quote is what you pay. Surprises are absorbed by us, not added to your invoice.

Predictable timeline

7–14 working days for a typical full installation. We turn up when we say, work the hours we say, finish on the day we say.

Insurance-grade compliance

Part P electrical certificate, WRAS-compliant plumbing, fully waterproofed walk-in showers. Your bathroom is insurable and certifiable.

12-month workmanship guarantee

We come back at 12 months for a free snag visit — anything we've installed that isn't perfect, we fix.

The Engineering Detail

Under the bonnet

A great bathroom is built behind the tiles. Here's what we get right that others don't:

Waterproofing (tanking)

Every wet area — full shower walls, splash zones, walk-in shower floors — receives a fully bonded tanking membrane (Aquapanel + Mapelastic or equivalent) before tile. Not silicone, not just board. This is the difference between 25 years and 2 years.

Substrate strategy

Walls: 12.5 mm cement-bonded tile backer on timber stud, taped and tanked. Floors: 22 mm ply overlay screwed to joists at 150 mm centres, decoupling membrane (Schluter Ditra), then porcelain tile. No flex, no crack-out.

Plumbing materials

Copper or polybutylene for hot/cold (push-fit on inspectable connections only — never buried). Soldered joints in inaccessible chases. Full pressure-test at first fix, recorded in writing.

Electrical zones

Bathroom IP-rated downlights, fan, mirror lighting and shaver sockets — all Part-P notified and certified. Zone 1/2 compliant fittings only, RCD-protected circuit, isolator outside the room.

Ventilation done properly

Continuous-run extractor (Vent-Axia Lo-Carbon Silhouette) ducted in rigid pipe to atmosphere via insulated route, condensate trap on cold runs. Sized to the room volume per Doc F — typically 15 l/s for a bathroom, 8 l/s for a WC.

Underfloor heating

Electric mat as standard in any tiled bathroom — 150–200 W/m² with floor probe and Heatmiser smart thermostat. Warm-floor luxury for under £600 fitted.

Suite selection

We are open-spec — work with any UK brand the client wants (Roca, Lefroy Brooks, Britton, Crosswater, Burlington, Vitra etc). We recommend the right valve/fitting brand for hard water (Darlington water is moderately hard) to maximise lifespan.

Recent Work

Real installations, shown as completed

Genuine project photography from across the North East — no stock imagery, no embellishment.

New en-suite bathroom with brass-framed shower enclosureCloakroom with wall-hung basin, WC and brass fittingsWalk-in shower with glass screen installed in a new bathroom
FAQ

Honest answers to the questions we hear most

Can't see your question? Call 07789 505532.

Get your 3D-designed bathroom quote

One trusted team. Fixed written quote. 3D design before you commit. 12-month workmanship guarantee. 30 years of plumbing and heating engineering behind every install.

Gas-Safe registered (932261) · Fully insured (£5m public liability) · 12-month workmanship guarantee