The Mastic Doctor team standing beside their branded vans outside an office building
Greater London · England

Commercial washroom and wet-area sealing in West Ham, Greater London

Our CSCS-carded applicators take on sealing in commercial washrooms, showers, kitchens and wet areas in West Ham and the surrounding area. Send photos or drawings for a fixed quote.

  • Resealing that didn’t last because the old bead stayed
  • Failed sealant behind washroom basins
  • Shower tray joints that have opened up
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
Constructionline member
Fully insured: £5m PL

Washroom sealing near West Ham

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

How the quote is worked out

A fixed quote reflects the actual work. It allows for:

  • Induction, permit and paperwork requirements
  • Access and working height
  • Quantities, in metres or numbers
  • Which sealant the job calls for

What a job costs comes down to the quantity of joints, how much old material needs removing and the access. Call for a quote when you’re ready.

What to include in your enquiry

There’s no need for a formal survey. A few details are enough to get going:

  • Rough lengths or quantities, or drawings if you have them
  • Photos of the joints, close up and from further back
  • What the building is and how it’s used
  • When you need the work done

Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, speak to us on 01277 525 020 or email the details over.

About our washroom sealing in West Ham

You can’t shut every toilet in an office, school or hotel at once. We phase the work one washroom, one bank of cubicles or one changing room at a time, so staff, guests or pupils always have somewhere to go. Give us your site hours and access windows and the phasing is planned around them. We work on urinals and WCs, accessible toilets and changing rooms and kitchens and tea points, and the failures we are asked to look at most are resealing that didn’t last because the old bead stayed and discoloured joints around urinals and WC pans. Whether you call it commercial sealant work, mastic application or joint sealing, the work in West Ham is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

In a London area such as West Ham, commercial washrooms in offices, hotels and leisure buildings see constant use. We cut out tired sealant around vanity units, cubicles, IPS panels and showers and lay fresh anti-mould sanitary silicone, a block of facilities at a time.

What our 12-month guarantee covers is the way we did the job: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.

Place
West Ham (E15, E13, E7)
Region
Greater London
Guarantee
12 months on every job
Quotes
A fixed quote before we start
Phone
01277 525 020
Updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

When something else is needed

A proper diagnosis includes knowing what sealant can’t do. We will tell you if the real problem is any of the following:

  • Panel boards already damaged by water
  • A room that stays damp because ventilation isn’t working
  • Hollow tiles or loose panels behind the joint

If you are not sure, just give us a call on 01277 525 020 or email us and we will give you a straight answer.

Where we work in West Ham

  • Accessible toilets and changing rooms
  • Urinals and WCs
  • Vanity units and basins
  • IPS panels and cubicles
  • Showers, trays and wet room floors
  • Kitchens and tea points

On site: what to expect

At the end of each section, we remove the tape, clean down and inspect every joint, ready for your sign-off. Where the sealant needs time to cure before use, we tell you and sign the area. For a job in West Ham, access comes first. Send the building rules and access times with your enquiry.

  1. We start by inspecting the fittings and joints and flagging problems sealant can’t solve.
  2. The phasing is agreed so there are always facilities open.
  3. We strip out the old bead and clean off the residue left behind.
  4. Each joint is degreased and left dry, because silicone won’t bond to damp or soapy surfaces.
  5. A bead of anti-mould sanitary silicone goes in and is tooled to a smooth, cleanable profile.
  6. Rooms reopen after the product’s cure time, and we move to the next.

Preparing the site

  • Let us know about inductions and permits
  • Agree which areas must stay open
  • Have the specification and drawings to hand

Quotes

Send us photos, drawings or a joint schedule are often enough for a fixed quote. Where a site visit makes more sense, we’ll arrange one.

Ask for a quote

Advice

After the work

Keep the joints in good shape with a few simple steps:

  • Include joints in routine washroom inspections
  • Report split joints at trays and basins early
  • Keep a record of which washrooms need attention
  • Mention any site permits or estates rules at quote stage

We hand each area back once the silicone has had the cure time the product needs. We will tell you when the wet areas can be used, and it helps if signs stay up until then.

Water getting behind IPS panels and vanity units can swell the boards. After that, those parts need replacing rather than resealing.

General trades versus a specialist

The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.

Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

Commercial clients in West Ham

Agents, factors and owners’ representatives all follow the same route: send the details, accept a fixed quote, and we carry out and guarantee the work. Keys, access and contacts can be agreed in advance.

We work for building owners and managing agents on sealant work across single buildings or whole portfolios around West Ham. One quote can cover more than one site, which keeps the paperwork simple.

Your questions answered

Is hospital work, at somewhere like Newham University Hospital, something you do?

Yes. We work in healthcare settings as well as offices and schools. Each area is agreed with the ward or department and the estates team in advance.

Can you work around term dates at a campus such as University of East London?

Yes. Tell us the term dates, vacation periods and access windows, and we will plan the work around them. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.

How do we ask for a quote?

It works in four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. Step one needs little more than photographs and a postcode.

What site paperwork can you supply?

Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we will confirm them with the quote.

Do you need to see the site first?

Photos, drawings or a schedule are often enough to quote. If the job needs a look first, we will arrange a visit.

How long before the toilets can reopen?

That varies with the sealant and the room temperature. You will get a reopening time for each area before we leave it.

Is any job too small?

Whatever the size, the process is the same: details, then a fixed price, then sealing, then a 12-month guarantee.

Toilets, showers and kitchens around West Ham

In London buildings, toilets and showers generally need to stay partly open, which is why the work is split into phases agreed in advance. The area within 2 miles of West Ham holds a good number of hotels. En suite bathrooms, staff changing rooms and kitchens all need their sanitary silicone renewed in time. Rooms are done in turn so most stay available.

For a site such as Newham University Hospital, 1.4 miles to the south-east of West Ham, sanitary joints in clinical areas need sound, cleanable sealant and a careful method. For a college such as Stratford College London, which lies north-west of West Ham, half-term and summer give the windows for washroom work. For buildings on a site such as Crescent Court Business Centre (0.9 miles south-west of West Ham), washrooms and tea points can be resealed in phases through the working week.

West Ham is about 2 miles west of East Ham, in Greater London. Businesses, contractors and managing agents in West Ham use us for work on washrooms and wet areas, as part of our coverage of Greater London. West Ham is one of 764 places in Greater London on our list.

Business premises anywhere in E15, E13 and E7 are within our area. Streets here include Plaistow Grove, Willis Road and Moorey Close. Sites close to West Ham are covered too, including Upton (1 mile north-east), Greengate (1 mile south-east), Maryland (1 mile north-west), Stratford (1 mile north-west) and Plaistow (1 mile south-east). Bigger towns within reach include London (5 miles south-west), City of Westminster (7 miles west), Marylebone (7 miles west), Kensington (9 miles west), St Pancras (6 miles west) and Shoreditch (4 miles west).

Landmarks near West Ham

Locally, jobs take us to sites close to West Ham Church School, The Earl Of Derby Public House and St Bonaventure's RC School, among other places. The closest station to West Ham is West Ham station, roughly 0.5 miles south-west. Nearby you’ll also find Greenwich Castle (3.9 miles south) and Passmore Edwards Museum (0.6 miles north). Not far away are Old Ford Island and Tower Hill.

Map of West Ham © OpenStreetMap contributors
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