
Commercial washroom and wet-area sealing in Belgravia, Greater London
Washroom sealing for Belgravia, from a contractor working since 2005. Fully insured, with a 12-month guarantee.
- Mould spotting along silicone joints
- Failed sealant behind washroom basins
- Urinal joints that look unhygienic
Washroom sealing across Belgravia
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Washroom sealing in Belgravia, done properly
Accessible WCs, showers and changing areas have their own pinch points: wet-floor edges, tray perimeters, basin tops and the line where flooring meets the wall. An open joint there lets water track under flooring or behind wall panels so they get particular attention. If you have discoloured joints around urinals and WC pans and panel joints letting water behind, we can help, whatever the surface. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in Belgravia it comes down to the same thing: the right product in a properly prepared joint.
In Belgravia, 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.
We stand by our work: 12 months, guaranteed. That covers our preparation and application, and we come back if anything isn’t right.

- Place
- Belgravia (SW3, SW1X, SW1W)
- Wider area
- Greater London
- Guarantee
- A 12-month guarantee
- Quotes
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
What sets the cost
Your fixed quote is built from the real scope. It takes account of:
- Working within restricted access windows
- The product specified
- How much there is to seal
- Whether old sealant has to be cut out first
We don’t publish prices, because the scope varies so much from one building to the next. Call for a quote.
What we need to price the job
We can often quote from photographs and a few details. Please tell us:
- The site address and postcode
- What the building is and how it’s used
- When you need the work done
- Anything awkward about access or site hours
Send us photographs, drawings or a joint schedule are often enough for a fixed quote. If the job needs a look first, we will arrange a site visit.
Your questions answered
Is hospital work, at somewhere like Lister Hospital, something you do?
Yes, healthcare and care buildings are part of our work. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
Could you schedule work at a campus like Faculty of Medicine (Imperial College London) for the vacation?
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.
How long does a job like this take?
That varies with the scale of the job, but the work normally takes between a morning and a week or so, set by the number of rooms and the phasing you need. Larger or phased jobs take longer, and we will give you a timescale with the quote.
How do we ask for a quote?
The quote form is the simplest route, though you can also ring 01277 525 020 or send details through our quote form. Photos, drawings or a joint schedule help us quote quickly.
Can washrooms stay open while you work?
Just the room being resealed is out of use. Each room reopens after the sealant’s cure time, then we move on.
Do you have public liability insurance?
Yes. Our insurance certificate can be sent alongside the quote.
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. Internal work is rarely affected.
Also near Belgravia
What else we do in Belgravia
After the work
Problems stay small when the joints are checked regularly. In particular:
- Add sealant joints to planned maintenance checks
- Keep extract fans working and vents clear
- Don’t leave an open joint at a basin or tray
- Clean sealant with gentle products and a soft cloth
Each room goes back into use only when the sealant has cured enough. You will be told when showers and basins can be used again, and it helps if signs stay up until then.
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 failed joints are worth acting on quickly.
When it isn’t the sealant
We seal joints; we don’t mend everything behind them. On its own, sealant can’t deal with:
- Hollow tiles or loose panels behind the joint
- Failed tanking beneath a wet-room floor or behind tiles
- Vanity carcasses that have swollen
If in doubt, give us a call on 01277 525 020 or email us and we’ll say what we think.
Where we work in Belgravia
- Vanity units and basins
- IPS panels and cubicles
- Showers, trays and wet room floors
- Kitchens and tea points
- Urinals and WCs
- Accessible toilets and changing rooms
Should maintenance staff do it?
For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
Certain joints really need a specialist: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.
Our process
We schedule the visit to fit the site hours and access windows you give us. While we’re working, the area stays contained and tidy, and we check in with your contact before moving on to each new area. All of Greater London is in the ULEZ, and kerbside space in Belgravia can be scarce. If there’s a loading bay, a car park or a permit we can use, tell us when you send details.
- First, the phasing is agreed so facilities stay open.
- Leaks, loose panels or damp are pointed out first.
- Old sealant is stripped and the faces prepared.
- We reseal with the grade suited to each area.
- We confirm reopening times for each washroom.
Preparing the site
- Tell staff and tenants when we’ll be in
- Point out any areas we must not close
- Arrange parking or a loading space
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 you can plan around. For a chat about it beforehand, give us a call on 01277 525 020 or use the quote form.
Related advice
Commercial clients in Belgravia
Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we will confirm them with the quote.
For main contractors, we work as the sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first.
Commercial washrooms in Belgravia
A London building with hundreds of occupants can’t lose every washroom for a day, so we phase the work core by core or floor by floor with the building manager. A good number of hotels sit less than 2 miles from Belgravia. En suite bathrooms, staff changing rooms and kitchens all need their sanitary silicone renewed in time.
Toilets at places like Brompton Cross District Shopping Centre. (0.6 miles south-west of Belgravia) are cleaned constantly, which is hard on silicone. Toilets at colleges like Westminster Kingsway College, 0.8 miles east of Belgravia, take heavy use from students and staff alike. Hotels such as The Diplomat Hotel (less than half a mile south-west of Belgravia) have en suite bathrooms where tired silicone at the bath, tray and basin is replaced room by room.
Belgravia is about 1 mile south of City of Westminster, in Greater London. We cover commercial sites throughout Belgravia, for single jobs and planned programmes alike. Across Greater London, 764 places are covered, including Belgravia.
Business premises anywhere in SW3, SW1X and SW1W are within our area for washrooms and wet areas. We cover commercial and managed buildings on Hans Road, Eaton Lane and Gerald Road. With the A3214 and A3217 nearby, Belgravia is straightforward for us to reach. Just outside Belgravia, we also work in Brompton (1 mile south-west), Victoria (1 mile south-east), Chelsea (1 mile south-west), Pimlico (1 mile south-east) and Westminster (1 mile east). Bigger towns within reach include London (3 miles east), St Pancras (3 miles north-east), Shoreditch (4 miles north-east), Walthamstow (8 miles north-east), Hoxton (4 miles north-east) and Whitechapel (4 miles east).
What’s near Belgravia
Recent enquiries here include premises near Saint Thomas More Language College, Green Park and Natural History Museum Library and Archives, among other places. Other local landmarks include Star Tavern (under half a mile north-west) and Inchbald School of Design (less than half a mile south). The closest station to Belgravia is London Victoria station, roughly 0.5 miles south-east. A little further out are Health Exhibition Centre (under half a mile south-east) and Harrods (less than half a mile west). Green spaces nearby include Campden Hill and Serpentine.