Washroom Sealing in St John's Wood
Washroom sealing for St John's Wood, from a contractor working since 2005. Fully insured, with a 12-month guarantee.
- Stained sealant around pans and urinals
- Open joints along basins and vanity units
- Sealant laid over old silicone and now peeling
Need washroom sealing in St John's Wood?
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
On site: what to expect
Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Any old material is cut back to clean, sound faces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. All of Greater London is in the ULEZ, and kerbside space in St John's Wood 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.
- Anything behind the joints that needs another trade is flagged.
- Failed sealant and residue are stripped out.
- We reseal with the grade suited to each area.
- We confirm reopening times for each washroom.
Getting the site ready
- Agree which areas must stay open
- Point out parking and an unloading spot
- Move anything stored against the joints
Get a fixed quote
Tell us about the building, the joints and when you need the work done, and we’ll put a fixed quote together. The easiest way is to call the office on 01277 525 020 or send details through our quote form.
Advice
Washroom sealing in St John's Wood, done properly
In a commercial washroom, sealant is usually 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 once mould grows into it, it can’t be scrubbed out. The fix is to remove it completely and reseal with sanitary silicone containing anti-mould additives. If you have discoloured joints around urinals and WC pans and sealant lifting along a tray edge, we can help, on urinals and WCs, showers, trays and wet room floors and IPS panels and cubicles alike. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in St John's Wood it comes down to the same thing: the right product in a properly prepared joint.
In St John's Wood, as across London, commercial kitchens and washrooms need sealed joints that can be cleaned properly. We use sanitary and hygienic sealants, choosing food-safe products where food may touch the surface.
A 12-month guarantee applies to all our work. If an installation problem shows up, ring 01277 525 020 or use the quote form and we will arrange a return visit.
- Where
- St John's Wood (NW8, NW6, NW3)
- Wider area
- Greater London
- Cover
- A 12-month guarantee
- Price
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Also near St John's Wood
Other services in St John's Wood
How the job changes by surface
Wet-room floors and floor-to-wall joints
We seal the visible joints; we don’t install or repair waterproofing below, and we will say if the trouble looks to be beneath the floor.
IPS and cubicle panels
A panel that has already swollen won’t be fixed by sealant, and any we come across will be pointed out.
What we’re called out for in St John's Wood
Much of the failed sealant we remove was applied over old silicone or residue. New silicone won’t grip the old so it peels away quickly.
Any of the following is a good reason to get the joints checked over:
- Kitchen worktop joints that can’t be kept clean
- Users noticing mouldy joints
- Failed joints along IPS and cubicle panels
- Shower tray joints that have opened up
At a college such as City of Westminster College, 0.9 miles to the south-west of St John's Wood, washroom and kitchen sealant is best renewed in the holidays or in phases during term.
Before you book anyone
- Whether primer will be used where the manufacturer specifies it
- Are they CHAS accredited or on Constructionline?
- How they’ll work around occupants
- How they handle RAMS and site documents
Why deal with it now?
When a washroom looks worn, a refit isn’t the only answer. If the finishes are in good order, replacing the sealant may do much of what’s needed for now. Getting scaffold, permits or access booked in St John's Wood takes effort, so it makes sense to deal with every failing joint while access is in place.
What a job costs comes down to how many linear metres there are, how much old material needs removing and how the joints are reached. Call for a fixed quote when you are ready.
Why appoint us
- Work carried out by CSCS-carded applicators
- Products installed to the manufacturer’s instructions
- Standard and matched colours in many product ranges
- Over 20 years of commercial sealing
Read what affects the cost and our accreditations and insurance.
When something else is needed
Part of a good diagnosis is knowing where sealant stops. We will tell you if the real problem is any of the following:
- A dripping waste or valve behind a panel
- Condensation from failed extract fans
- Failed tanking beneath a wet-room floor or behind tiles
If in doubt, call the office on 01277 525 020 or send details through our quote form and we’ll say what we think before you book.
Joints and surfaces we work on
- Kitchens and tea points
- Accessible toilets and changing rooms
- IPS panels and cubicles
- Showers, trays and wet room floors
- Vanity units and basins
- Urinals and WCs
Questions we’re asked in St John's Wood
Is a hospital such as Hospital of St John and St Elizabeth somewhere you can work?
Yes, healthcare and care buildings are part of our work. Each area is agreed with the ward or department and the estates team in advance.
Will you work in a care home in St John's Wood without moving residents out?
Yes. Care settings are planned area by area, at times agreed with the home. We follow the home’s own procedures throughout.
How do you deal with asbestos in old sealant?
Managing asbestos is the dutyholder’s responsibility, so for older buildings we ask for the asbestos register first. Work pauses if suspect material is found, until it has been tested.
Are you CHAS accredited?
Yes. We are CHAS accredited and a Constructionline member, which helps with supplier vetting.
Are your applicators CSCS-carded?
Yes. Should the site need card details in advance, tell us and we will confirm them with the quote.
Do you cover St John's Wood?
Yes. St John's Wood falls within our area, and you can phone 01277 525 020 or email a schedule or drawings to get started.
How long do sealant joints last?
Nobody can honestly give a figure in years, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular inspection is the best way to catch problems early.
Owners, agents and contractors
Main contractors use us as their sealant subcontractor, on new build and refurbishment alike. We work to your programme, your specification and your site rules, and our applicators hold CSCS cards.
Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.
Keeping St John's Wood washrooms open while we work
Two care or nursing homes sit less than 2 miles from St John's Wood. In a care setting, a mouldy or lifting joint in a wet room is a hygiene issue as much as a cosmetic one. Each room is kept out of use only as long as the sealant needs. St John's Wood has plenty of hotels close by, all within 2 miles. Behind every hotel door there’s a bathroom whose sealant will need renewing sooner or later. We work a handful of rooms at a time, so the hotel keeps letting the rest.
For centre management at a site such as O2 Centre (0.9 miles north of St John's Wood), washroom work is planned around footfall. Staff changing rooms and patient toilets at places like Hospital of St John and St Elizabeth, under half a mile to the south of St John's Wood, need cleanable, sound silicone.
St John's Wood is about 1 mile south of Hampstead, in Greater London. Commercial clients in St John's Wood use us for work on washrooms and wet areas. 764 places across Greater London fall within our area, St John's Wood among them.
Anyone looking for washroom sealing in NW8, NW6 and NW3 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. If your site is on The Lane, Hall Road and Hill Road or close by, we can quote for washrooms and wet areas. You’ll find St John's Wood on or near the A5205. Nearby places we also cover include South Hampstead (1 mile north), Swiss Cottage (1 mile north), Primrose Hill (1 mile north-east), Lisson Grove (1 mile south) and Haverstock (1 mile north-east). Nearby towns on our patch include London (4 miles south-east), Kensington (3 miles south-west), St Pancras (3 miles east), Shoreditch (4 miles east), Walthamstow (7 miles north-east) and Hoxton (4 miles east).
Around St John's Wood
Around St John's Wood, our work takes us to commercial buildings near Cecil Sharp House, Primrose Hill and Arnold House School. You’ll also find Quintin Kynaston Community Academy (under half a mile north-west) and Cafe Med pub (under half a mile north-west). There’s a railway station in St John's Wood itself: South Hampstead station. Other landmarks nearby include Hospital of St John and St Elizabeth (under half a mile south) and Montfichet's Tower (3.5 miles south-east). For a walk, there’s The Long Water and Primrose Hill.