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

Washroom Sealing in The Chart

Our CSCS-carded applicators take on sealing in commercial washrooms, showers, kitchens and wet areas in The Chart. Send photographs or drawings for a fixed quote.

  • Stained sealant around pans and urinals
  • Stained or open joints at kitchen sinks and worktops
  • Complaints from staff, guests or users about tired washrooms
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
12-month guarantee on our workmanship.
South East, London & Scotland
Constructionline member
£5m PL insurance

Washroom sealing in The Chart

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 The Chart

In healthcare and care settings, sealing is part of keeping surfaces cleanable. We work to your organisation’s estates and infection-control requirements and any site permits. Tell us what records you need and we’ll confirm with the quote. We work on IPS panels and cubicles, vanity units and basins and showers, trays and wet room floors, and what we are called in for most is black mould inside silicone joints that cleaning can’t shift and resealing that didn’t last because the old bead stayed. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in The Chart, preparation and product choice get the time they need.

Smaller places such as The Chart still have commercial washrooms and kitchens: in halls, pubs, schools, care homes and farm-based businesses. Mould gets into sealant in any washroom that doesn’t dry out, and once it’s in, the sealant is replaced.

We stand by our work with a 12-month guarantee. That covers our preparation and application.

Where
The Chart (RH8)
Region
Surrey
Cover
12 months on every job
Quote
Quoted before any work starts
Telephone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Washroom sealing in The Chart: the local picture

The area within 2 miles of The Chart holds several hotels. Hotel en suites take daily use, and tired silicone at trays and basins is one of the first things guests notice. We work a handful of rooms at a time, so the hotel keeps letting the rest. The Chart is about 18 miles from central London. Business park offices have washrooms in daily use by staff, which is why the work is phased.

Where you’re responsible for a hall attached to a building such as St Andrew's, its kitchen and toilets need sealant that stays cleanable. Staff changing rooms and patient toilets at places like Tandridge Priory, 0.6 miles north-west of The Chart, need cleanable, sound silicone.

The Chart is about 6 miles south-east of Caterham, in Surrey. Across the RH8 postcode area, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. The Chart is one of 379 places in Surrey on our list for washrooms and wet areas. For work in that direction, see our London page.

We take on washrooms and wet areas across the RH8 postcode area, whatever the building. Among the streets we cover are Stoneleigh Road, St Andrews Way and Ridlands Lane. Nearby places we also cover include Pains-Hill (1 mile west), Moorhouse Bank (1 mile north-east), Goodley Stock (1 mile east), Limpsfield (1 mile north-west) and Crockham Hill (1 mile south-east) for washrooms and wet areas. Bigger towns within reach include Epsom (15 miles north-west), Horley (10 miles south-west), Redhill (9 miles west), Ewell (15 miles north-west), Reigate (10 miles west) and Caterham (6 miles north-west).

Around The Chart

We work on buildings around Carpenters Arms, Oxted School and Hazelwood School. For rail, the closest station is Hurst Green station, about 1.6 miles west. A little further out are Tandridge Priory (0.6 miles north-west). For a walk, there’s Botley Hill and Bay Pond.

Map of The Chart © OpenStreetMap contributors

Cost factors for washrooms and wet areas

To price the job, we consider:

  • Specialist products, such as fire-rated or hygienic sealants
  • Quantities, in metres or numbers
  • Access and working height
  • Removal of failed or old sealant

Cost follows what’s involved: 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 to include in your enquiry

For an accurate fixed quote, we need a clear picture of the site. Useful things to include:

  • A wide shot and a close-up of the area
  • When you need the work done
  • What the building is and how it’s used
  • The postcode of the building

To get a fixed quote, call 01277 525 020 or use the quote form with the site address and an outline of the work. You can also send details through our quote form.

Surface by surface

Showers and trays

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

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.

Signs you need washroom sealing in The Chart

Warmth, moisture and soap residue are exactly what mould needs, and sealant joints trap all three. Even anti-mould grades can be colonised over time where extraction is poor.

These are often picked up first by site or facilities staff:

  • Black mould inside silicone joints that cleaning can’t shift
  • Resealing that didn’t last because the old bead stayed
  • Open joints at the base of cubicle panels
  • Gaps where vanity tops meet the wall

Schools such as Limpsfield CofE Infant School have toilets, changing rooms and kitchens that are best resealed in the holidays.

Comparing quotes

  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • Will failed sealant be removed rather than covered?
  • Will RAMS and insurance details be available?
  • The terms of the workmanship guarantee

Questions to ask before you appoint anyone

The Chart: questions and answers

Is a smaller place like The Chart outside your area?

No. Small places get the same service as large ones. Our area covers London and the South East counties. Where we can, we group nearby jobs to make the most of each trip.

Is hospital work, at somewhere like Tandridge Priory, 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.

How soon can a washroom be used after resealing?

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

Is it possible to just clean mouldy silicone?

Typically not. The mould is inside the silicone so cleaning only lightens it for a while. Replacement is the lasting fix.

How do you deal with asbestos in old sealant?

The duty to manage asbestos sits with the building’s dutyholder, so we will ask for the register before work on an older building. Work pauses if suspect material is found, until it has been tested.

Are you CHAS accredited?

Yes. We are CHAS accredited, we’re a Constructionline member and we use CSCS-carded applicators.

Will you quote for a small job?

Whatever the size, the process is the same: send details, get a fixed quote, we seal, guaranteed.

Keeping the joints sound

For the best life from the joints:

  • Squeegee showers and trays after busy periods
  • Keep extract fans working and vents clear
  • Mention any site permits or estates rules at quote stage
  • Keep washrooms out of use until we say the sealant has cured

Mild cleaning products and non-abrasive cloths look after sanitary silicone best. Aggressive descalers, solvents and scouring pads shorten its life over time.

Inspectors look at whether kitchen surfaces can be kept clean. Resealing sinks, worktops and splashbacks before an inspection is a simple step.

When something else is needed

Some faults sit outside our scope, and we say so rather than covering them up:

  • Leaks through tanking or membranes below the finishes
  • Condensation from failed extract fans
  • Water from plumbing, not from a joint

If in doubt, speak to us on 01277 525 020 or send photos by email and we’ll say what we think before you book.

Where we work in The Chart

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

On site: what to expect

In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed, then reopened once the sealant allows before the next one starts. For a building around The Chart, tell us how to find it and who will meet us. Add it to your enquiry and we will build it into the plan.

  1. First, the phasing is agreed so facilities stay open.
  2. Anything behind the joints that needs another trade is flagged.
  3. Old sealant is stripped and the faces prepared.
  4. The right sanitary or food-safe sealant is applied.
  5. We confirm reopening times for each washroom.

Getting the site ready

  • Clear stock, furniture or equipment away from the joints
  • Send any specification or drawings in advance
  • Point out parking and an unloading spot

Request a quote

Let us know the site, the scope and your timescale, and we will put a fixed quote together. The easiest way is to give us a call on 01277 525 020 or send photos by email.

Get a quick quote

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