
Washroom Sealing contractors in St Johns
We carry out sealing in commercial washrooms, showers, kitchens and wet areas in St Johns and the surrounding area. Send details for a fixed quote.
- Urinal joints that look unhygienic
- Stained or open joints at kitchen sinks and worktops
- Failed joints along IPS and cubicle panels
Washroom sealing near St Johns
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
On site: what to expect
We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. Then we strip out anything that has failed, prepare every joint and seal it. Planning a London job such as one in St Johns starts with access. Send the building rules and access times with your enquiry.
- Every room is surveyed and the failed joints listed.
- You get a fixed quote with the phasing plan.
- The whole of the old bead is removed.
- Each joint is cleaned and left dry.
- A sanitary silicone bead is laid and given a smooth tooled finish.
- Rooms reopen after the cure time.
Before we start on site
- Point out parking and an unloading spot
- Warn occupants and staff about the work
- Move anything stored against the joints
Get a fixed quote
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we’ll return a fixed quote that you can work with. If you have questions first, give us a call on 01277 525 020 or send details through our quote form.
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About our washroom sealing in St Johns
Not every silicone belongs in a washroom. Sanitary grades carry anti-mould additives, and neutral-cure types are used where acetoxy silicone could attack some metals, stone or mirror backings. Where food contact is possible, we use a hygienic, food-safe grade. Site teams most often ask us about users noticing mouldy joints and split or peeling sealant at shower trays, on kitchens and tea points, vanity units and basins and accessible toilets and changing rooms. Whoever orders the work in St Johns, the brief is typically the same: a clear scope, tidy work and joints that don’t fail again.
Building managers in St Johns normally need some facilities open throughout. We work through washrooms floor by floor or core by core, at times agreed with you, so staff and visitors can always find an open washroom.
Work we carry out comes with a 12-month guarantee. Should something we installed fail, call the office on 01277 525 020 or email us and we’ll come back to it.

- Where
- St Johns (SE13, SE10, SE8)
- Wider area
- Greater London
- Cover
- 12 months on our workmanship
- Quotes
- A fixed quote before we start
- Call
- 01277 525 020
- Last updated
- 3 November 2026
More services for St Johns
What affects the price in St Johns
The price varies from site to site. It mainly depends on:
- Working within restricted access windows
- Induction, permit and paperwork requirements
- Distance, for remote addresses
- The size and state of each joint
Access often affects the price as much as the sealing: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.
What to include in your enquiry
We can often quote from photographs and a few details. Please tell us:
- Specification clauses that apply
- What the building is and how it’s used
- The postcode of the building
- Asbestos survey details if the building is older
We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To start the process, phone 01277 525 020 or email drawings and photos.
When something else is needed
A few problems need another trade or a different fix, and we point that out rather than sealing over them:
- Leaks through tanking or membranes below the finishes
- Vanity carcasses that have swollen
- Hollow tiles or loose panels behind the joint
If you’re not sure, just speak to us on 01277 525 020 or send photos by email and we’ll give you a straight answer.
What we seal
- Showers, trays and wet room floors
- IPS panels and cubicles
- Urinals and WCs
- Kitchens and tea points
- Accessible toilets and changing rooms
- Vanity units and basins
Site staff or a sealant specialist?
Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and we’ll confirm the paperwork you need with the quote.
For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.
How the job changes by surface
Basins and vanity tops
Basin joints get wet every time someone washes their hands, so the wall joint and bowl surrounds tend to fail before anything else. We remove the old bead and lay a fresh one of sanitary silicone.
Healthcare and care settings
We phase washroom sealing so care areas are never left without facilities. Tell us what records you need and we’ll confirm with the quote.
St Johns: questions and answers
Can you work around term dates at a campus such as University of Greenwich - Greenwich Campus?
Yes. We plan campus work around teaching, exams and residence turnarounds. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
Must a hotel around St Johns close while you work?
Almost never. The work is phased so most rooms stay available. Housekeeping and our team agree each day’s rooms.
Is there a guarantee on the work?
There is a 12-month guarantee on our workmanship backed by public liability insurance.
Are you insured?
Yes. We’re fully insured, including public liability cover.
How soon can a washroom be used after resealing?
That varies with the sealant and the room temperature. You will get a reopening time for each area before we leave it.
Can weather delay the job?
Outside, yes. The joint has to be dry and within the product’s temperature range, so damp, frosty or very cold days can stop external work. Inside work is seldom held up.
What sealant do you use in washrooms?
An anti-mould sanitary silicone in the majority of cases. Neutral-cure grades are used where acetoxy types could mark metals, stone or mirror backings.
What happens if it’s left?
Running fresh silicone along a failed bead hides the problem briefly. It doesn’t bond, so it peels and traps dirt behind it. Full removal and proper cleaning is what makes the new joint last. Getting scaffold, permits or access booked in St Johns takes effort, so it makes sense to deal with every failing joint while access is in place.
We don’t publish prices, because the scope varies so much from one building to the next. For a fixed figure, call for a quote.
Why us?
- A fixed quote before work starts
- CSCS-carded applicators
- One contact handling all your sites
- Fully insured, including public liability cover
Take a look at our cost guide and how we’re accredited.
Washroom sealing in St Johns: the local picture
Four care or nursing homes sit less than 2 miles from St Johns. In care settings, wet rooms, assisted bathrooms and en suites rely on clean, sound sealant. Rooms are done a few at a time at times agreed with the home. A 2-mile radius around St Johns takes in a good 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.
Clinical washrooms at sites like University Hospital Lewisham, 1.1 miles to the south of St Johns, are scheduled with the ward so the room is out of use for as little time as possible. Toilets at places like Lewisham Shopping Centre, 0.7 miles south-east of St Johns, are cleaned constantly, so silicone needs to be sound and smooth. Colleges such as Lewisham College, under half a mile to the south-west of St Johns, have toilets, changing rooms and catering kitchens that can be resealed around term dates.
St Johns is about 4 miles south-east of London, in Greater London. We cover commercial sites throughout St Johns. Our Greater London coverage takes in 764 places.
We take on washrooms and wet areas across the SE13, SE10 and SE8 postcode area. For a building on Avon Road, Mill Lane and Clare Road or nearby, we can quote for washrooms and wet areas. Main routes into St Johns include the A2210 and A2211. Sites close to St Johns are covered too, including New Cross (1 mile west), Deptford (1 mile north), Lewisham (1 mile south-east), Telegraph Hill (1 mile west) and Ladywell (1 mile south). Further afield, our area takes in London (4 miles north-west), City of Westminster (6 miles north-west), Marylebone (6 miles north-west), Kensington (8 miles west), St Pancras (6 miles north-west) and Shoreditch (5 miles north-west).
Landmarks near St Johns
We work on buildings around Wickham Arms, Brookmill Park and Addey and Stanhope School. Other local landmarks include St. Paul's (0.7 miles north) and Laban Centre (0.8 miles north). There’s a railway station in St Johns itself: St Johns station. A little further out are Fan Museum (0.9 miles north-east) and Lewisham Shopping Centre (0.7 miles south-east). Open spaces near St Johns include Brookmill Road Local Nature Reserve and Tower Hill.