How much space do I need under my Tunstall stairs for a WC?

Roughly 800mm × 1.5m of usable footprint and 1.9m head height over the WC pan. We'll measure and confirm at the free survey.

Will I need building regs sign-off?

Yes — adding a new WC requires building regs notification. We'll handle the install paperwork; the council issues the completion certificate.

Usually yes in Tunstall terraces, with a 100mm soil branch. If the stack is too far we'll spec a slim macerator unit.

Mandatory — a ducted fan (humidistat or timer) to outside is required. Recirculation isn't acceptable on a new internal WC.

Yes — we hold full public liability cover and every job in Tunstall comes with a written workmanship guarantee.

Always. After a free home visit in Tunstall we send a fully itemised, fixed-price quotation — no surprises on invoice day.

Cloakroom Fitting · Tunstall

Downstairs WCs and compact cloakrooms in tight footprints.

Under-stairs cloakrooms are the most space-efficient bathroom upgrade most Tunstall terraces can make — and the most commonly fitted badly.

We size up the void, check the soil-stack run, and design around the sloped ceiling so you don't crack your head on the underside of the third tread.

We've fitted cloakroom fitting in Tunstall long enough to know the houses inside out.

How much space do I need under my Tunstall stairs for a WC?: Roughly 800mm × 1.5m of usable footprint and 1.9m head height over the WC pan. We'll measure and confirm at the free survey.
Will I need building regs sign-off?: Yes — adding a new WC requires building regs notification. We'll handle the install paperwork; the council issues the completion certificate.
Can the waste connect to my existing stack?: Usually yes in Tunstall terraces, with a 100mm soil branch. If the stack is too far we'll spec a slim macerator unit.
What about ventilation?: Mandatory — a ducted fan (humidistat or timer) to outside is required. Recirculation isn't acceptable on a new internal WC.
Are you fully insured for work in Tunstall?: Yes — we hold full public liability cover and every job in Tunstall comes with a written workmanship guarantee.
Do you provide a fixed-price quote before starting?: Always. After a free home visit in Tunstall we send a fully itemised, fixed-price quotation — no surprises on invoice day.

What we commit to on every under-stairs cloakroom job in Tunstall:

Head-height profile drawn at survey before any quote (standard on every Tunstall under-stairs cloakroom install).
Building-regs compliant install paperwork supplied at handover (standard on every Tunstall under-stairs cloakroom install).
Macerator and gravity-fed installs to spec, and it is in writing for Tunstall customers.
Standard on Tunstall work: hundreds of compact cloakrooms fitted across staffordshire.
Standard on Tunstall work: specialists in small-format tile detailing.

Owners adding a downstairs WC to a terrace or semi in Tunstall hit a recurring set of issues with under-stairs cloakroom:

Head height under the stairs too low for a standard WC at the wrong position — flagged regularly on Tunstall jobs.

Soil stack too far for gravity drainage without a pump — flagged regularly on Tunstall jobs.

No mechanical extraction — required on any internal new WC — flagged regularly on Tunstall jobs.

Tunstall: solid concrete floors needing chase channels for waste.

Cold external walls causing condensation around the cistern — common on Tunstall surveys.

We work Tunstall alongside these neighbouring areas on the same weekly run:

Coverage from Tunstall

Service radius is approximate and based on our regular weekly routes.

We work through it in this order, and you'll know what's happening each day:

1Step 1 in Tunstall: snag, seal and hand over with cleaning notes.
2Next on a Tunstall fit: confirm waste connection — branch, stack or macerator.
33. First-fix water and waste, plus power for light and shaver socket, agreed with you before we start in Tunstall.
44. Fit a corner basin, slim WC and compact mirror cabinet, agreed with you before we start in Tunstall.

Materials & methods