
Washroom Sealing contractors in Kings Cross
Sealing in commercial washrooms, showers, kitchens and wet areas in Kings Cross. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Users noticing mouldy joints
- Shower tray joints that have opened up
- Sealant laid over old silicone and now peeling
Washroom sealing near Kings Cross
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Washroom sealing in Kings Cross
Washroom joints need the right sealant, not whatever is to hand. Sanitary grades carry anti-mould additives, and neutral-cure versions avoid the damage acetoxy types can do to some metals, stone and mirror backings. In food areas, hygienic or food-safe sealants are used where food contact is possible. We work on kitchens and tea points, accessible toilets and changing rooms and vanity units and basins, and the usual reasons a site gets in touch are complaints from staff, guests or users about tired washrooms and black mould inside silicone joints that cleaning can’t shift. Facilities teams, main contractors and managing agents in Kings Cross tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.
Washrooms in London offices, hotels and gyms are used hard from morning to evening. Mouldy or split sealant at vanity tops, IPS panels and urinals is replaced with anti-mould sanitary silicone, in phases so some facilities stay open.
Work we carry out comes with a 12-month guarantee. If an installation problem shows up, give us a call on 01277 525 020 or email us and we’ll arrange a return visit.

- Location
- Kings Cross (NW1W, NW1, N1)
- Wider area
- Greater London
- Guarantee
- A 12-month guarantee
- Quote
- Quoted before any work starts
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Different surfaces, different methods
Basins and vanity tops
Vanity tops and basins are splashed all day, 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.
Kitchens and tea points
Staff kitchens and tea points have joints at worktops, sinks and splashbacks. Sealed joints leave no gaps for food and dirt.
Quoting for work in Kings Cross
These are the things that shape the price:
- Induction, permit and paperwork requirements
- How accessible the joints are
- How much existing material needs removing
- Travel to remote or island sites
Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a fixed quote.
Sending details for a quote
To price the job accurately, we need to understand the site. Useful things to include:
- Anything awkward about access or site hours
- The product your specification calls for
- The asbestos register, for older buildings
- Whether the building will be occupied during the work
A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Send what you have, and we will arrange a site visit if anything is unclear.
Also near Kings Cross
Also in Kings Cross
After the work
Problems stay small when the joints are checked regularly. In particular:
- Report split joints at trays and basins early
- Share your site rules when you send details
- Respect the cure time before reopening each room
- Keep extract fans working and vents clear
Any failure in our workmanship within the 12-month guarantee is ours to put right. Beyond that, regular checks keep small problems small.
Leaks through tray and wet-floor joints can go unseen until a ceiling marks below. At that stage, boards or ceilings may need repair, so reseal when you first spot a split.
How a job runs
We follow your site rules from the start: sign-in, induction and whatever permit system the building uses. With the paperwork done, we take the joints in the sequence agreed with you. For a job in Kings Cross, access comes first: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Send the building rules and access times with your enquiry.
- Every washroom is checked joint by joint, with loose panels, leaks or damp noted for the right trade.
- We agree which rooms close and when, so users always have somewhere to go.
- Failed silicone is removed completely and the surfaces cleaned of every trace.
- Each joint is degreased and left dry, because silicone won’t bond to damp or soapy surfaces.
- New sanitary silicone with anti-mould additives goes in and is tooled neat.
- Rooms reopen after the product’s cure time, and we move to the next.
Getting the site ready
- Point out any areas we must not close
- Warn occupants and staff about the work
- Have the specification and drawings to hand
Ask for a quote
Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To ask for one, ring 01277 525 020 or email the details over.
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Kings Cross: questions and answers
Can you work around term dates at a campus such as University College London?
Yes. Tell us the term dates, vacation periods and access windows, and we’ll plan the work around them. Let us know which documents your site asks for, and we’ll confirm them alongside the quote.
Can you take on a job at a hospital such as St. Pancras Hospital?
Yes, hospitals are one of the sectors we cover. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
Do you need to remove the old sealant?
The whole of the old bead is removed and the surfaces cleaned before resealing. That’s what makes the new joint last.
Is any job too small?
Single areas, one-off repairs and whole buildings are all quoted the same way: send details, get a fixed quote, we seal, guaranteed.
Is Kings Cross in your area?
Yes. We cover Kings Cross and the rest of Greater London, within our coverage of Greater London, South East England and Scotland. To discuss a job, phone 01277 525 020 or email us.
Do you work in hospitals, clinics and care homes?
We work in clinics, hospitals and care homes. Any records you need are confirmed with the quote before we start.
Are you insured?
Yes. Our insurance certificate can be sent alongside the quote.
Washroom sealing around Kings Cross: what changes locally
Kings Cross has plenty of hotels close by, all within 2 miles. Each has en suites, back-of-house toilets and kitchens with sealant that moulds and splits. Kings Cross has two care or nursing homes no more than 2 miles away. In care settings, wet rooms, assisted bathrooms and en suites rely on clean, sound sealant. Each room is kept out of use only as long as the sealant needs.
For a college such as Westminster Kingsway College (less than half a mile south-east of Kings Cross), half-term and summer give the windows for washroom work. At a university such as University College London (under half a mile south-west of Kings Cross), summer is the usual window for resealing residence bathrooms. For an occupier at a site such as Roman Way Industrial Estate (1 mile north-east of Kings Cross), the canteen and welfare facilities need cleanable joints as much as any office.
Kings Cross is about 1 mile north-west of St Pancras, in Greater London. If you’re looking for washroom sealing in Kings Cross, we can help, as we do across Greater London. Across Greater London, 764 places are covered, including Kings Cross.
Commercial sites across NW1W, NW1 and N1 are covered for washrooms and wet areas. Streets here include Euston Road, Duke's Road and Phoenix Road, and sites on any of them can send details for a fixed quote. Access to Kings Cross is via the A501 and A4200 among other routes. We also cover Somers Town (1 mile west), St Pancras (1 mile south-east), Euston (1 mile south-west), Bloomsbury (1 mile south) and Agar Town (1 mile north-west). A short drive away, we cover Kensington (4 miles south-west), Walthamstow (6 miles north-east), Whitechapel (3 miles east), Hampstead (3 miles north-west), Ruislip (13 miles west) and Brompton (3 miles south-west).
Local landmarks in Kings Cross
Around Kings Cross, our work takes us to commercial buildings near The Fellow pub, Lewis Cubitt Park and Pilsudski Institute of London and the streets around them. Nearby too are Regent High School (0.5 miles north-west) and The Poor School (less than half a mile east). There’s a railway station in Kings Cross itself: London Kings Cross station. A little further out are Sartorial Contemporary Art (less than half a mile south-east) and Brunswick Centre (under half a mile south). For a walk, there’s St. James's Park Lake and Ludgate Hill.
Why act early in Kings Cross
Waiting for a holiday closure can leave failing joints in place for a long time. Phasing lets it happen now, with facilities kept in use. Failed sealant in a building in Kings Cross can quickly affect neighbours, tenants or the floor below. Putting it right early is less disruptive than dealing with the consequences.
Every site prices differently: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.
Why us?
- Work to your specification and the manufacturer’s guidance
- Clear, fixed quotes
- Workmanship guaranteed for 12 months
- Old sealant cut out, never sealed over
Read what affects the cost and our accreditations.
Honest limits
Some faults sit outside our scope, and we point that out rather than sealing over them:
- Swollen or delaminated boards behind panels or vanity tops
- Mould caused by poor ventilation, which will return until the extract is fixed
- Leaking pipes, traps, wastes or cisterns, which need a plumber
If in doubt, speak to us on 01277 525 020 or use the quote form and we will say what we think before you book.
What we seal
- IPS panels and cubicles
- Kitchens and tea points
- Urinals and WCs
- Accessible toilets and changing rooms
- Vanity units and basins
- Showers, trays and wet room floors