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

Shortlands washroom sealing

Sealing in commercial washrooms, showers, kitchens and wet areas across Shortlands, by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Shower tray joints that have opened up
  • Panel joints letting water behind
  • Washrooms that look worn because of the sealant
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
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Washroom sealing near Shortlands

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

How we handle washroom sealing in Shortlands

In a commercial washroom, sealant is typically the first thing to wear out. 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. The fix is to remove it completely and reseal with sanitary silicone containing anti-mould additives. We work on showers, trays and wet room floors, accessible toilets and changing rooms and vanity units and basins, and the usual reasons a site gets in touch are gaps where vanity tops meet the wall and panel joints letting water behind. A specialist sealant contractor works differently from a general builder: in Shortlands, that means joint design, primers and backing rod as standard.

Washrooms in London offices, hotels and gyms are used hard from morning to evening. We cut out tired sealant around vanity units, cubicles, IPS panels and showers and lay fresh anti-mould sanitary silicone, a block of facilities at a time.

The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.

Place
Shortlands (BR2, BR1, BR3)
Region
Greater London
Guarantee
A 12-month guarantee
Quotes
Fixed quote, scope in writing
Call
01277 525 020
Page updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Surface by surface

Urinals and WC pans

We reseal around urinals and pans with a sanitary grade once the whole of the old bead has gone.

Wet-room floors and floor-to-wall joints

Floor edges in wet areas are where water most often escapes. Floor perimeters and sealant joints near drains are resealed.

Do you need washroom sealing in Shortlands?

Decorators’ caulk and general sealants sometimes end up where sanitary silicone belongs. They aren’t made for constant wetting, and they stain, crack or wash out.

Site and facilities staff are often the first to spot these:

  • Open joints along basins and vanity units
  • Shower tray joints that have opened up
  • Failed joints along IPS and cubicle panels
  • Discoloured joints around urinals and WC pans

Halls of residence and teaching buildings at universities such as University of Greenwich - Avery Hill, 4.6 miles to the north-east of Shortlands, are easiest to reseal during vacations.

What to look for in a quote

  • Whether primer will be used where the manufacturer specifies it
  • How they’ll work around occupants
  • Their pre-qualification and accreditations
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?

Questions to ask before you appoint anyone

Aftercare for building managers

For the best life from the joints:

  • Inspect washroom sealant regularly
  • Make sure washroom ventilation is running
  • Respect the cure time before reopening each room
  • Tell us about infection-control or permit rules before we quote

Where possible, have shower floors and trays squeegeed after busy periods. Standing water on a joint all day shortens its life.

Inspectors look at whether kitchen surfaces can be kept clean. Resealing sinks, worktops and splashbacks before an inspection is a simple step.

Your questions answered

Do you take on jobs in Shortlands where loading and access are tightly controlled?

Yes. Inductions, permits and timed loading are routine for us in London. The building manager’s rules go straight into our method. We allow for the ULEZ, which covers every borough

Will you plan work around the academic year at somewhere like University of Greenwich - Avery Hill?

Yes. Education sites normally want the work in vacations or in phases during term, and we plan to suit. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.

Are you fully insured?

Yes. Our insurance certificate can be sent alongside the quote.

Is old silicone taken out first?

We always remove it. Fresh silicone can’t key to an old bead so a bead over the top fails quickly.

Can you handle several sites?

Yes. We take on portfolio and planned maintenance work, with each site phased to suit its occupants.

Will your applicators have CSCS cards?

Yes. Should the site need card details in advance, tell us and we’ll confirm them with the quote.

Can you follow the specification on our project?

Yes. The specification and the manufacturer’s installation guidance are what we work to.

What we can’t put right

Part of a good diagnosis is knowing where sealant stops. You’ll hear from us if the cause turns out to be any of the following:

  • Panel boards already damaged by water
  • Water from plumbing, not from a joint
  • Water escaping beneath the floor rather than through a joint

Not sure which it is? You can give us a call on 01277 525 020 or email the details over and we’ll tell you honestly before you book.

Joints and surfaces we work on

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

On site: what to expect

We schedule the visit to fit the site hours and access windows you give us. On the day, the work area is kept contained and tidy, and we check in with your contact before moving on to each new area. Planning a London job such as one in Shortlands starts with access. Give us the hours we can be on site and we will schedule to suit.

  1. Every washroom is checked joint by joint, with loose panels, leaks or damp noted for the right trade.
  2. We agree which rooms close and when, so users always have somewhere to go.
  3. We strip out the old bead and clean off the residue left behind.
  4. Joints are cleaned, degreased and dried before sealing.
  5. A bead of anti-mould sanitary silicone goes in and is tooled to a smooth, cleanable profile.
  6. Each room is handed back once the sealant has had its cure time.

What we need from you

  • Tell us which areas need to stay in use
  • Tell us your opening times and when work is allowed
  • Send any specification or drawings in advance

Getting a fixed quote

A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Send what you have, and we’ll arrange a site visit if anything is unclear.

Get a price

Related advice

Leave it or put it right?

Open or mouldy joints are hard to keep hygienic which matters most in healthcare, food and education settings. Sound, smooth joints are much easier to keep clean. In a London building, a failed joint rarely affects only one party: water travels through shared structures, and a small leak becomes a dispute between occupiers. Dealing with it early is simpler for everyone.

The product called for affects the cost, and so does the preparation. Access, phasing and site rules also count.

What you get with us

  • One number for every site we cover
  • Standard and matched colours in many product ranges
  • A Constructionline member, so easy to vet
  • Specification-led, product-correct work

See what affects the cost and our accreditations and insurance.

Commercial washrooms in Shortlands

20 care or nursing homes sit less than 2 miles from Shortlands. Assisted bathrooms and wet rooms in care settings need sanitary sealant that stays cleanable. We plan the work with the manager so residents are disturbed as little as possible. A 2-mile radius around Shortlands takes in a number of hotels. Each has en suites, back-of-house toilets and kitchens with sealant that moulds and splits. The work can go floor by floor, agreed with housekeeping.

Colleges such as Bromley College, 1.6 miles south-east of Shortlands, have toilets, changing rooms and catering kitchens that can be resealed around term dates. Office toilets at parks like Chartwell Business Centre, 1.4 miles to the east of Shortlands, take steady weekday use, and mouldy silicone soon shows.

Shortlands is about 1 mile south-west of Bromley, in Greater London. Businesses, contractors and managing agents in Shortlands can call on us for washrooms and wet areas. Shortlands is one of 764 places we cover in Greater London. London is covered too, around 8 miles from Shortlands.

We cover the BR2, BR1 and BR3 postcode districts for washrooms and wet areas. Buildings on Hayes Lane, Stone Road and Hayes Road are within our area for washrooms and wet areas. Just outside Shortlands, we also work in Eden Park (1 mile south-west), Hayes (2 miles south), Bromley Common (2 miles south-east), West Wickham (2 miles south-west) and Southborough (2 miles east). Bigger towns within reach include London (8 miles north-west), City of Westminster (10 miles north-west), Marylebone (11 miles north-west), Kensington (11 miles north-west), St Pancras (10 miles north-west) and Shoreditch (10 miles north).

Near you in Shortlands

Locally, jobs take us to sites close to The Richmal Crompton pub, Church House Gardens and Langley Park School for Girls, among other places. The closest station to Shortlands is Shortlands station, roughly 0.5 miles north of the centre. A little further out are Bromley Hospital (0.7 miles east) and Bethlem Museum of the Mind (1.6 miles south-east). The countryside around Shortlands includes Summer Hill and Downham Woodland Walk.

Map of Shortlands © OpenStreetMap contributors
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