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

Crystal Palace washroom sealing

We carry out sealing in commercial washrooms, showers, kitchens and wet areas in Crystal Palace and the surrounding area. Send details for a fixed quote.

  • Discoloured joints around urinals and WC pans
  • Kitchen worktop joints that can’t be kept clean
  • Shower tray joints that have opened up
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
Constructionline member
£5m public liability

Washroom sealing for businesses in Crystal Palace

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

About our washroom sealing in Crystal Palace

Our washroom work covers offices, hotels, schools and colleges, leisure centres and gyms, clinics and care homes, plus the kitchens and tea points that go with them. Product and method follow how hard each area is used and cleaned. If you have kitchen worktop joints that can’t be kept clean and failed joints along IPS and cubicle panels, we can help, on showers, trays and wet room floors, urinals and WCs and IPS panels and cubicles alike. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Crystal Palace, that means joint design, primers and backing rod as standard.

Many London buildings can’t close every toilet at once. We work through washrooms floor by floor or core by core, at times agreed with you.

A 12-month guarantee applies to all our work in Greater London. Should something we installed fail, give us a call on 01277 525 020 or use the quote form and we will come back to it.

The Mastic Doctor team standing beside their branded vans outside an office building
Where
Crystal Palace (SE19, SE20, SE26)
Wider area
Greater London
Cover
12 months on our workmanship
Quote
Fixed quote, scope in writing
Call
01277 525 020
Page updated
3 November 2026

Busy facilities in and around Crystal Palace

The 2 miles around Crystal Palace include four care or nursing homes. In a care setting, a mouldy or lifting joint in a wet room is a hygiene issue as much as a cosmetic one. Work is agreed with the manager, around residents’ routines. 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.

For an occupier at a site such as Franklin Industrial Estate, 0.9 miles south-east of Crystal Palace, the canteen and welfare facilities need cleanable joints as much as any office. Student showers at universities like King's College London, 3.5 miles to the north of Crystal Palace, see more use than most, and their silicone shows it.

Crystal Palace is about 2 miles north-east of Thornton Heath, in Greater London. Anywhere in SE19, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Across Greater London, 764 places are covered, including Crystal Palace. London is covered too, around 6 miles from Crystal Palace.

We cover the SE19, SE20 and SE26 postcode districts for washrooms and wet areas. If your site is on Tudor Road, Colby Road and Church Road or close by, we can quote for washrooms and wet areas. If your building is just outside Crystal Palace, we cover Anerley (1 mile south), Penge (1 mile south-east), Gipsy Hill (1 mile west), Upper Norwood (1 mile west) and Sydenham (1 mile north-east). Further afield, our area takes in London (6 miles north), City of Westminster (7 miles north-west), Marylebone (7 miles north-west), Kensington (8 miles north-west), St Pancras (8 miles north) and Shoreditch (7 miles north).

What’s near Crystal Palace

We work on buildings around The Grape & Grain pub, Crystal Palace Park and Sydenham High School, among other places. Crystal Palace has its own railway station: Crystal Palace station. Nearby you will also find Greenwich Castle (5 miles north-east) and Whitgift Centre (3.3 miles south-west). Not far away are Dulwich Upper Wood and Knight's Hill.

Map of Crystal Palace © OpenStreetMap contributors

What we’re called out for in Crystal Palace

Daily commercial cleaning wears sealant faster than people expect. Harsh products, abrasive pads and pressure washing break down a joint’s surface and edges so grime sticks to the damaged surface.

If one of these sounds familiar, it’s time for a closer look:

  • Failed sealant behind washroom basins
  • Panel joints letting water behind
  • Stained sealant around pans and urinals
  • Washrooms that look worn because of the sealant

For centre management at a site such as Bell Green Retail Park, 1.8 miles to the north-east of Crystal Palace, washroom work is planned around footfall.

Questions to ask before you book

  • How long is the guarantee, and what does it include?
  • Whether old or failed sealant will be cut out, not overlaid
  • Their plan for phasing and protecting the area
  • Their public liability cover

Questions to ask before you appoint anyone

Surface by surface

Kitchens and tea points

In commercial kitchens, smooth, cleanable joints help keep the kitchen hygienic. Food-safe sealants are used where food may touch the joint.

Showers and trays

Shower trays move under foot and are wet all day. Tray perimeters are a frequent source of leaks.

What sets the cost

A fixed quote reflects the actual work. It takes account of:

  • Induction, permit and paperwork requirements
  • Access and working height
  • Which sealant the job calls for
  • Backing rod, priming and other preparation

Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.

Sending details for a quote

It doesn’t need to be a full survey. These details are enough to start:

  • When you need the work done
  • Where the site is, with the postcode
  • The product your specification calls for
  • How the joints are reached, and at what height

Specifications, drawings and tender packages are welcome with any enquiry, and we will price against exactly what is specified. For smaller jobs, photographs and a description will do.

Diagnose, treat, sign off

We schedule the visit to fit the site hours and access windows you give us. While we are working, the area stays contained and tidy, and we check in with your contact before moving on to each new area. Most London premises stay occupied while we’re on site, so we agree zones and timings with the building or facilities manager. Areas are handed back as each section is finished.

  1. We survey each room, count the joints and note anything behind them that needs another trade.
  2. A phasing plan keeps part of the building’s facilities in use at all times.
  3. The failed silicone is stripped and every face scraped clean of residue.
  4. We clean and dry every surface so the new sealant can grip.
  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.

What we need from you

  • Clear stock, furniture or equipment away from the joints
  • Flag any permit to work we’ll need
  • Agree which areas must stay open

Request a quote

Pricing a project or setting a maintenance budget? We’ll quote against your scope and drawings that you can work with. For a chat about it beforehand, ring 01277 525 020 or email drawings and photos.

Get a price

Related advice

Questions about Crystal Palace

Can you work around term dates at a campus such as King's College London?

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.

Would you work within a site like British Home & Hospital for Incurables?

Yes, provided the work is planned with the site’s estates team. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

What guarantee comes with washroom resealing?

There is a 12-month guarantee on our workmanship, and we carry public liability insurance.

Do you offer coloured sealant?

That depends on the product. Some ranges are wide, others limited, so we’ll confirm the colours available for the specified product with the quote.

How long do sealant joints last?

Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.

Can you work to our specification?

Yes. We follow the specification, along with the manufacturer’s installation guidance, and any queries are raised before we start.

How much does the work cost?

There isn’t a price list, because every site is different. Send photos or drawings and we’ll price it at a fixed figure.

Owners, agents and contractors

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

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. We can agree access arrangements and keyholder contacts beforehand.

What we can’t put right

Being straight saves everyone time. New sealant won’t cure:

  • Water from plumbing, not from a joint
  • Failed tanking beneath a wet-room floor or behind tiles
  • Fittings that move too much to hold a bead

If you’re not sure, just phone 01277 525 020 or use the quote form and we’ll give you a straight answer before you book.

Joints and surfaces we work on

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

Trusted. Accredited. Insured.