The Mastic Doctor team standing beside their branded vans outside an office building
Greater London · England

Commercial washroom and wet-area sealing in Clare Market, Greater London

Washroom sealing for Clare Market, from a contractor working since 2005. Fully insured and CHAS accredited.

  • Panel joints letting water behind
  • Sealant lifting along a tray edge
  • Open joints along basins and vanity units
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Washroom sealing across Clare Market

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

About our washroom sealing in Clare Market

Accessible WCs, showers and changing areas have their own pinch points: shower trays, wet-room floor edges, basins and floor-to-wall junctions. An open joint there lets water track under flooring or behind wall panels so they get particular attention. Most enquiries involve panel joints letting water behind and gaps where vanity tops meet the wall, on showers, trays and wet room floors, vanity units and basins and urinals and WCs. Facilities teams, main contractors and managing agents in Clare Market tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

Restaurants, cafés and hotel kitchens across London have joints at worktops, sinks and wall cladding that need to stay smooth and cleanable. We use sanitary and hygienic sealants, choosing food-safe products where food may touch the surface.

Every job is signed off with a 12-month guarantee. It’s a plain promise: if the work we did fails within twelve months, we return to fix it.

Place
Clare Market (WC2H, W1D, WC2B)
Wider area
Greater London
Cover
12 months on every job
Quote
Fixed quote, scope in writing
Telephone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

When something else is needed

Our job is the joint, not everything around it. On its own, sealant can’t deal with:

  • Mould caused by poor ventilation, which will return until the extract is fixed
  • Fittings that move too much to hold a bead
  • Leaks through tanking or membranes below the finishes

If you are not sure, just call the office on 01277 525 020 or use the quote form and we will give you a straight answer before you book.

What we seal

  • Kitchens and tea points
  • IPS panels and cubicles
  • Accessible toilets and changing rooms
  • Showers, trays and wet room floors
  • Vanity units and basins
  • Urinals and WCs

Why it’s worth doing now in Clare Market

Washrooms shape how visitors judge a building. Guests, clients, pupils and patients notice stained joints even when the room is otherwise spotless. Resealing is a modest task with a very visible payoff. Access in London is hard enough to arrange once, so it makes sense to deal with every failing joint while access is in place.

What a job costs comes down to how many linear metres there are, what has to come out first and how the joints are reached. Call for a quote when you are ready.

What you get with us

  • Work carried out by CSCS-carded applicators
  • A range of standard colours, depending on the product
  • 12 months’ guarantee on every job
  • One number for every site we cover

See our cost guide and how we’re accredited.

Owners, agents and contractors

Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Clare Market can form part of a wider programme.

If you look after buildings for someone else, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end.

Commercial washrooms in Clare Market

A London building with hundreds of occupants can’t lose every washroom for a day, so we take one block of facilities out of use at a time. The area within 2 miles of Clare Market holds a good number of hotels. En suite bathrooms, staff changing rooms and kitchens all need their sanitary silicone renewed in time.

Colleges such as The Royal College of Radiologists (to the north-west of Clare Market) have toilets, changing rooms and catering kitchens that can be resealed around term dates. Staff changing rooms and patient toilets at places like Royal London Hospital for Integrated Medicine (0.5 miles north of Clare Market) need cleanable, sound silicone.

Clare Market is about 1 mile south of St Pancras, in Greater London. We cover Clare Market and the rest of Greater London, with the same fixed quotes and 12-month guarantee as everywhere else. Our Greater London coverage takes in 764 places, large and small.

Business premises anywhere in WC2H, W1D and WC2B are within our area. Buildings on Drury Lane, New Square and Old Square are within our area for washrooms and wet areas. You will find Clare Market on or near the A4 and A301. Nearby places we also cover include Aldwych (1 mile south), Temple Bar (1 mile east), Covent Garden (1 mile south-west), Temple (1 mile south-east) and Seven Dials (1 mile west). Further afield, our area takes in Kensington (4 miles west), Walthamstow (6 miles north-east), Hampstead (4 miles north-west), Ruislip (13 miles west), Stockwell (3 miles south) and Orpington (13 miles south-east).

Near you in Clare Market

Locally, jobs take us to sites close to Lincoln's Inn Fields, London Nautical School and LSE Shaw Library and the streets around them. Other local landmarks include Ye Old White Horse pub (under half a mile north) and Mercers' School (under half a mile north-east). For rail, the closest station is London Charing Cross station, about 0.6 miles south-west of the centre. Other landmarks nearby include St Philip's Hospital (less than half a mile north-west) and Montfichet's Tower (0.7 miles east). For a walk, there’s Ludgate Hill and St. James's Park Lake.

Map of Clare Market © OpenStreetMap contributors

Do you need washroom sealing in Clare Market?

Panels and vanity units move slightly in use and trays shift slightly with each user. If the joint wasn’t laid to take that movement, it tears or peels away.

Things that usually lead to an enquiry:

  • Resealing that didn’t last because the old bead stayed
  • Users noticing mouldy joints
  • Discoloured joints around urinals and WC pans
  • Kitchen worktop joints that can’t be kept clean

Customer toilets in retail centres such as Brunswick Centre (to the north-west of Clare Market) rarely close, so resealing is phased.

Questions to ask before you book

  • Whether primer will be used where the manufacturer specifies it
  • What the guarantee covers, and for how long
  • How the existing material will be dealt with
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?

Questions to ask before you appoint anyone

Questions about Clare Market

Is a hospital such as Royal London Hospital for Integrated Medicine somewhere you can work?

Yes. Healthcare sites are among the places we work. Each area is agreed with the ward or department and the estates team in advance.

Will our hotel in Clare Market need to close for the work?

Rarely, if ever. We take a few rooms out at a time. Tell us your quiet periods and access windows and we will plan around them.

Is Clare Market in your area?

Yes. Clare Market falls within our area, and the simplest way to start is to phone 01277 525 020 or use the quote form.

Are you CHAS accredited and on Constructionline?

Yes. We are CHAS accredited and a Constructionline member, which helps with supplier vetting.

What about RAMS and site documents?

Requirements differ from site to site, so tell us what you need and we will confirm it when we quote.

Can weather delay the job?

It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so we watch the forecast and rearrange outside work if we have to. Indoors, the weather is rarely a problem.

Do you use special sealant for toilets and showers?

Each area gets the grade that suits it. Washrooms and showers take anti-mould sanitary silicone, and food areas take a hygienic, food-safe sealant where food contact is possible.

How the job changes by surface

Changing rooms and gyms

Changing rooms in gyms and leisure centres stay wet and warm, so mould is a constant battle. Anti-mould sanitary silicone is the standard choice.

Urinals and WC pans

Urinal backs, troughs and slab joints are resealed with sanitary silicone after the old bead and residue are removed.

How a job runs

Where the site stays busy, the work is phased so only one area is out of use at a time. Each area is protected, prepared and sealed, then handed back before the next one starts. All of Greater London is in the ULEZ, and kerbside space in Clare Market can be scarce. Let us know about any on-site parking or loading arrangements when you send the job details.

  1. First, the phasing is agreed so facilities stay open.
  2. Anything behind the joints that needs another trade is flagged.
  3. Failed sealant and residue are stripped out.
  4. The right sanitary or food-safe sealant is applied.
  5. We confirm reopening times for each washroom.

Getting the site ready

  • Tell us what induction or permit system the site runs
  • Point out any areas we must not close
  • Send any specification or drawings in advance

Quotes

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, call the office on 01277 525 020 or email us.

Get a price

Related advice

Accreditations

Trusted. Accredited. Insured.