
Commercial washroom and wet-area sealing in Ham, Greater London
Sealing in commercial washrooms, showers, kitchens and wet areas in Ham. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Sealant stained black around basins and showers
- Split or peeling sealant at shower trays
- Failed joints along IPS and cubicle panels
Washroom sealing for businesses in Ham
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Washroom sealing for commercial buildings in Ham
In a commercial washroom, sealant is usually the first thing to wear out. Basin tops, urinal backs, panel joints and shower trays put it under water, chemicals and daily cleaning 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 urinals and WCs, accessible toilets and changing rooms and kitchens and tea points, and what we’re called in for most is washrooms that look worn because of the sealant and sealant lifting along a tray edge. Most enquiries from Ham start with one failed joint and grow into a wider look at the building: we look at the rest while we are there and tell you what we find.
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.
Building owners and contractors get the same cover: twelve months on the work we carried out. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

- Where
- Ham (TW10, KT2, TW11)
- Region
- Greater London
- Guarantee
- A 12-month guarantee
- Price
- Quoted before any work starts
- Phone
- 01277 525 020
- Updated
- 3 November 2026
How a job runs
We follow your site rules from the start: signing in, inductions and any permit to work. With the paperwork done, the joints are worked through in the order agreed with your site contact. Planning a London job such as one in Ham starts with access. Send the building rules and access times with your enquiry.
- Every room is surveyed and the failed joints listed.
- The fixed quote sets out the rooms, the products and the phasing.
- The whole of the old bead is removed.
- Joints are degreased and dried.
- New anti-mould sealant goes in and is tooled neat.
- Each area is handed back when ready.
Getting the site ready
- Let us know about inductions and permits
- Send your site hours and access windows
- Explain the parking and delivery arrangements
Quotes
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to call 01277 525 020 or send details through our quote form with what you know.
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What affects the price in Ham
The price varies from site to site. Expect it to depend on:
- Travel to remote or island sites
- How much there is to seal
- Phasing around occupants
- Site requirements such as inductions and permits
The specified product makes a difference, and so does the preparation, from cutting out to priming and backing rod. Access, phasing and site requirements come into it too.
What to include in your enquiry
There’s no need for a formal survey. A few details are enough to get going:
- Any dates the work must fit around
- The asbestos register, for older buildings
- Clear photos of the problem areas
- Whether the building will be occupied during the work
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we’ll fill any gaps with a visit.
Wet areas in Ham’s workplaces
In London buildings, toilets and showers generally need to stay partly open, so we take one block of facilities out of use at a time. Ham has a good number of hotels close by, all within 2 miles. 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.
For a campus such as St Mary's University, 1 mile west of Ham, showers in residences and washrooms in teaching blocks can be programmed around term dates. Customer toilets in retail centres such as Bentall Centre, 1.6 miles south of Ham, rarely close, so resealing is phased.
Ham is about 1 mile south-east of Twickenham, in Greater London. Ham sits inside our coverage and the rest of Greater London, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. We work across 764 places in Greater London, large and small. London is covered too, some 10 miles away.
Business premises anywhere in TW10, KT2 and TW11 are within our area for washrooms and wet areas. For a building on New Road, Lock Road and Cave Road or nearby, send details and we’ll quote for washrooms and wet areas. You’ll find Ham on or near the A307, so getting applicators and materials to site is simple. Nearby places we also cover include Petersham (1 mile north), Eel Pie Island (1 mile north-west), Strawberry Hill (1 mile west), Teddington (1 mile south-west) and Richmond (1 mile north). Nearby towns on our patch include London (10 miles north-east), City of Westminster (9 miles north-east), Marylebone (9 miles north-east), Kensington (6 miles north-east), St Pancras (10 miles north-east) and Shoreditch (12 miles north-east).
Around Ham
In Ham, that means premises near Grey Court School, The New Inn Public House and Sudbrook Park. The nearest railway station is Teddington station, about 1.2 miles south-west of the centre. Nearby you’ll also find Eel Pie Island Museum (1.1 miles north-west) and Bentall Centre (1.6 miles south). Not far away are Kew Gardens Lake and Richmond Hill.
Your questions answered
Is hospital work, at somewhere like Cassel Hospital, something you do?
Yes. Healthcare sites are among the places we work. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
Can you cope with the access rules in a London building?
Yes. Inductions, permits and timed loading are routine for us in London. Share the building’s contractor rules and we will work to them. We allow for the ULEZ, which covers every borough
How long does a typical visit take?
That varies with the scale of the job, though a typical visit normally takes a morning or so for a small washroom, longer where showers and changing rooms are included. For bigger or phased jobs, we will set out a timescale with the quote.
What if there’s asbestos in the old mastic?
Asbestos is possible in some older mastics, particularly in buildings from before 2000. We check the asbestos register before cutting out old sealant in an older building, and work stops until any suspect material has been tested. We don’t remove asbestos-containing materials.
Can you handle several sites?
Yes. Multi-site work and planned programmes are a core part of the service, planned site by site to suit how each building is used.
What will the job cost?
There isn’t a price list, because every site is different. With photographs or drawings, we can give you a fixed quote.
How long do sealant joints last?
There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Sealant joints are maintenance items, so inspect them regularly.
When to bring in a specialist
Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.
Towns and villages near Ham
What else we do in Ham
When it isn’t the sealant
Our job is the joint, not everything around it. Sealant alone won’t deal with:
- Condensation from failed extract fans
- A dripping waste or valve behind a panel
- Vanity carcasses that have swollen
Not sure which it is? You can call 01277 525 020 or use the quote form and we’ll tell you honestly.
Where we work in Ham
- Kitchens and tea points
- Showers, trays and wet room floors
- Vanity units and basins
- IPS panels and cubicles
- Urinals and WCs
- Accessible toilets and changing rooms
When to call us in Ham
Commercial cleaning is harder on sealant than everyday use. Harsh products, abrasive pads and pressure washing break down a joint’s surface and edges, and dirt and mould then get a foothold.
Clients typically get in touch after noticing one or more of the following:
- Sealant lifting along a tray edge
- Stained sealant around pans and urinals
- Open joints at the base of cubicle panels
- Washrooms that look worn because of the sealant
Colleges such as Kingston College Creative Industries Centre (1.5 miles south of Ham) have toilets, changing rooms and catering kitchens that can be resealed around term dates.
Before you book anyone
- Who will actually carry out the work
- How the existing material will be dealt with
- Their public liability cover
- How the joint faces will be prepared and primed
Why deal with it now?
When a washroom looks worn, a refit isn’t the only answer. Where tiles, panels and fittings are sound, new sealant may be enough to put it right while bigger works are planned. Getting scaffold, permits or access booked in Ham takes effort, so while access is arranged it pays to renew all failing joints, not just the worst.
The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a quote and we’ll explain how it’s made up.
What you get with us
- 12 months’ guarantee on every job
- CHAS accredited contractor
- CSCS-carded applicators
- RAL and finish matching where the product range allows
See how commercial sealant jobs are priced and how we’re accredited.