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

Commercial washroom and wet-area sealing in Crofton, Greater London

Sealant work in Crofton for main contractors, managing agents and facilities managers: sealing in commercial washrooms, showers, kitchens and wet areas, quoted at a fixed price.

  • Discoloured joints around urinals and WC pans
  • Sealant laid over old silicone and now peeling
  • Sealant stained black around basins and showers
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
Constructionline member
£5m PL insurance

Washroom sealing in Crofton

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Work for main contractors and building owners

Main contractors use us as their sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first, and our applicators hold CSCS cards.

When you manage a building on behalf of an owner, you need clear quotes and clear reporting. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.

How we handle washroom sealing in Crofton

In a busy washroom, the sealant usually gives up long before the tiles or fittings. Around basins, urinals, cubicles, IPS panels and shower trays it takes water, soap, cleaning chemicals and knocks every day and mould that roots into it can’t be cleaned away. We strip it out and lay new anti-mould sanitary silicone. We work on urinals and WCs, kitchens and tea points and vanity units and basins, and the usual reasons a site gets in touch are gaps where vanity tops meet the wall and stained or open joints at kitchen sinks and worktops. A single leaking joint is often how a building in Crofton first comes to us: we check the joints around it and give you an honest view of what needs doing now and what can wait.

In Crofton, as across London, commercial kitchens and washrooms need sealed joints that can be cleaned properly. Hygienic and anti-mould sanitary sealants are used where they suit, with food-safe products where food contact is possible.

Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and the quote explains what it covers.

Mastic Doctor team members lined up next to their branded vans outside an office building
Location
Crofton (BR6, BR5)
Wider area
Greater London
Cover
12 months on every job
Quote
Fixed quote, scope in writing
Phone
01277 525 020
Last updated
3 November 2026

Busy facilities in and around Crofton

Five care or nursing homes sit less than 2 miles from Crofton. Care home wet rooms and en suites are used every day and cleaned hard, which tells on the silicone. Each room is kept out of use only as long as the sealant needs. Crofton has several hotels close by, all within 2 miles. Behind every hotel door there’s a bathroom whose sealant will need renewing sooner or later.

At a college such as Bromley College, which lies west of Crofton, washroom and kitchen sealant is best renewed in the holidays or in phases during term. On a healthcare site such as Orpington Hospital, 1.1 miles to the south-east of Crofton, washroom work starts with the infection-control team’s sign-off.

Crofton is about 1 mile south-west of Orpington, in Greater London. We cover Crofton, with the same fixed quotes and 12-month guarantee as everywhere else. We work across 764 places in Greater London, large and small. For work in that direction, see our London page, about 11 miles away.

We take on washrooms and wet areas across the BR6 and BR5 postcode area, for business premises of every kind. If your site is on Grange Road, Reed Avenue and Gumping Road or close by, send details and we’ll quote for washrooms and wet areas. We also cover Broom Hill (1 mile north-east), Locksbottom (1 mile west), Petts Wood (1 mile north), Farnborough (1 mile south) and Green Street Green (2 miles south). Nearby towns on our patch include London (11 miles north-west), City of Westminster (14 miles north-west), Marylebone (14 miles north-west), Kensington (15 miles north-west), St Pancras (14 miles north-west) and Shoreditch (12 miles north-west).

What’s near Crofton

Recent enquiries here include premises near The Priory School, Newstead Wood School and The Maxwell pub, among other places. There’s a railway station in Crofton itself: Orpington station. Other landmarks nearby include Orpington Hospital (1.1 miles south-east) and Crofton Roman Villa (under half a mile south-east). For a walk, there’s Summer Hill and The Warren.

Map of Crofton © OpenStreetMap contributors

Our process

Tell us your site hours and access windows and we’ll plan around them. While we’re working, the area stays contained and tidy, and your contact hears from us before we move to the next area. The ULEZ covers the whole of Greater London, and parking near a job is rarely simple. If there’s a loading bay, a car park or a permit we can use, tell us when you send 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. We reseal with the grade suited to each area.
  5. We give you a reopening time for every room.

What we need from you

  • Send your site hours and access windows
  • Make sure the joints can be reached
  • Warn occupants and staff about the work

Request a quote

Let us know the site, the scope and your timescale, and a fixed quote will follow. To get it moving, call the office on 01277 525 020 or email a schedule or drawings.

Ask for a quote

Read more

Common problems we fix in Crofton

Daily commercial cleaning wears sealant faster than people expect. Harsh products, abrasive pads and pressure washing break down a joint’s surface and edges so grime sticks to the damaged surface.

If one of these sounds familiar, it’s time for a closer look:

  • A new bead over an old one coming away
  • Shower tray joints that have opened up
  • Kitchen worktop joints that can’t be kept clean
  • Urinal joints that look unhygienic

For buildings on a site such as Halo Business Park, which lies north-east of Crofton, washrooms and tea points can be resealed in phases through the working week.

Comparing quotes

  • Will failed sealant be removed rather than covered?
  • Whether their applicators hold CSCS cards
  • Their public liability cover
  • How the joint faces will be prepared and primed

How to choose a sealant contractor

FAQs: Crofton

Can you work on a hospital site such as Orpington Hospital?

Yes. We work in healthcare settings as well as offices and schools. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Can work in a care setting near Crofton go ahead while residents are there?

Yes. We work around residents’ routines, a room or two at a time. We follow the home’s own procedures throughout.

What do you charge?

That depends on the job: quantities, access, the product and any phasing. Call for a quote.

How do I request a quote?

The quote form is the simplest route, though you can also phone 01277 525 020 or send photos by email. Include photographs or drawings if you have them.

Is it possible to just clean mouldy silicone?

Cleaning may lighten it, but the mould returns. We replace the sealant with an anti-mould sanitary grade and point out if ventilation is part of the problem.

Do you work in hospitals, clinics and care homes?

Yes, healthcare and care settings are part of our work. Tell us what records you need and we’ll confirm with the quote before we start.

When can the area be used after sealing?

We will confirm how long the chosen product needs to cure, and sign any area that should be left alone.

Why act early in Crofton

A failed joint behind a basin or along a shower tray lets water run where it shouldn’t. That can lead to swollen boards, marked ceilings below and lingering smells which costs more to fix than a reseal. Access in London is hard enough to arrange once, so it makes sense to deal with every failing joint while access is in place.

Quantities, awkward access and phased working all shape the price. So do site requirements such as inductions and permits, along with the time of year for external work.

Why appoint us

  • Work carried out by CSCS-carded applicators
  • Specification-led, product-correct work
  • 12-month guarantee on workmanship
  • Public liability insurance in place

Take a look at how commercial sealant jobs are priced or how we’re accredited.

What we can’t put right

Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. It won’t fix:

  • Water escaping beneath the floor rather than through a joint
  • A room that stays damp because ventilation isn’t working
  • Panel boards already damaged by water

If you are not sure, just phone 01277 525 020 or email the details over and we will give you a straight answer before you book.

Where we work in Crofton

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

What the job involves on each surface

Urinals and WC pans

Floor joints around WC pans are often forgotten. We include them in the survey.

Healthcare and care settings

Assisted bathrooms and accessible toilets get heavy use, so their joints often need renewing sooner.

Accreditations

Trusted. Accredited. Insured.