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

Washroom Sealing in West Grinstead

Sealing in commercial washrooms, showers, kitchens and wet areas across West Grinstead, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Shower tray joints that have opened up
  • Sealant stained black around basins and showers
  • Stained or open joints at kitchen sinks and worktops
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
Constructionline member
£5m PL insurance

Washroom sealing near West Grinstead

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

Washroom sealing in West Grinstead, done properly

In a commercial washroom, sealant is typically 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 mould that roots into it can’t be cleaned away. We strip it out and lay new anti-mould sanitary silicone. Site teams most often ask us about users noticing mouldy joints and shower tray joints that have opened up, on accessible toilets and changing rooms, IPS panels and cubicles and kitchens and tea points. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in West Grinstead, that means joint design, primers and backing rod as standard.

Halls and community buildings near places like West Grinstead are used by different groups through the week, and their toilets and kitchens show it. Fresh anti-mould sanitary silicone at sinks, worktops and toilets keeps them cleanable.

We sign every job off with a 12-month guarantee. The promise is simple: if our work fails within that year, we put it right.

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
West Grinstead (RH13)
Wider area
West Sussex
Cover
A 12-month guarantee
Price
A fixed quote before we start
Telephone
01277 525 020
Updated
3 November 2026

How the job changes by surface

Kitchens and tea points

Staff kitchens and tea points have joints at worktops, sinks and splashbacks. Sealed joints leave no gaps for food and dirt.

Healthcare and care settings

In healthcare, sealed joints are part of infection control. We work to your estates and infection-control requirements and any permits the site uses.

After the work

For the best life from the joints:

  • Keep extract fans working and vents clear
  • Mention any site permits or estates rules at quote stage
  • Leave signs up until the cure time is over
  • Don’t leave trays and floors sitting wet

Where possible, have shower floors and trays squeegeed after busy periods. Standing water on a joint all day shortens its life.

A few failed joints can be resealed with hardly any disruption. Left until every washroom is affected, it becomes a bigger programme and more closures to manage.

What sets the cost

Each job is priced on its own details. The things that drive the figure:

  • How much existing material needs removing
  • The total length or number of joints
  • Distance, for remote addresses
  • Phasing around occupants

Pricing washrooms and wet areas depends on quantities, condition and access. Call for a quote.

Before you send an enquiry

We can often quote from photos and a few details. Please tell us:

  • Any dates the work must fit around
  • Approximate linear metres or a joint schedule
  • Access details, including height
  • A wide shot and a close-up of the area

Pricing a project or setting a maintenance budget? We will quote against your scope and drawings you can plan around. For a chat about it beforehand, phone 01277 525 020 or use the quote form.

Keeping West Grinstead washrooms open while we work

At about 37 miles from central London, West Grinstead is within reach of the capital, in a commuter belt where offices and business parks are common. Office washrooms on business parks see heavy weekday use, which is why the work is phased.

Office washrooms on sites such as Pondtail Farm (Business Park) (to the north-west of West Grinstead) are in use all working day, so resealing is phased to keep some open. For a hall at a building such as Shrine Church of Our Lady of Consolation and St Francis, resealing the kitchen and toilets can be fitted between bookings.

West Grinstead is about 6 miles south of Horsham, in West Sussex. Commercial clients in West Grinstead can call on us for washrooms and wet areas. 373 places across West Sussex fall within our area, West Grinstead among them. We also cover Brighton, around 13 miles from West Grinstead.

We cover the RH13 postcode districts for washrooms and wet areas. Streets here include Steyning Road, Carylls Meadow and Clothalls Lane. If your building is just outside West Grinstead, we cover Littleworth (1 mile south-east), Partridge Green (1 mile south-east), Dial Post (2 miles south-west), Shipley (2 miles west) and Whitehall (2 miles west). Nearby towns on our patch include Crawley (11 miles north-east), Horsham (6 miles north), Worthing (11 miles south), Haywards Heath (10 miles east), Burgess Hill (9 miles east) and Littlehampton (15 miles south-west).

Near you in West Grinstead

For a walk, there’s Knepp Wildland.

Map of West Grinstead © OpenStreetMap contributors

Your questions answered

What documents will you need to give us for a job in West Grinstead?

RAMS, insurance certificate, CSCS details: list what the site needs and we will confirm it with the quote. We’re CHAS accredited and a Constructionline member, with £5m public liability insurance and CSCS-carded applicators.

Will the toilets in our West Grinstead building be out of use?

Normally only some of them, for a short time. We work in phases so other facilities stay open. We will tell you the curing time for the product before we start.

Is West Grinstead in your area?

Yes. West Grinstead is in our area and the rest of West Sussex, within our coverage of Greater London, South East England and Scotland. For a quote, give us a call on 01277 525 020 or email us.

Is it possible to just clean mouldy silicone?

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

When is resealing likely to be due?

It depends on movement, UV and weather, cleaning, traffic and the product. Treat them as maintenance items and inspect them regularly.

Can one quote cover more than one building?

Yes. A group of buildings can go on one quote, with one point of contact across South East England, Greater London and Scotland.

Will all the toilets be closed at once?

Just the room being resealed is out of use. Rooms go back into use once the sealant has cured, then we move on.

What sealant work can’t fix

A proper diagnosis includes knowing what sealant can’t do. You’ll hear from us if the cause turns out to be any of the following:

  • Leaking pipes, traps, wastes or cisterns, which need a plumber
  • Failed tanking beneath a wet-room floor or behind tiles
  • Fittings that move too much to hold a bead

If you are not sure, just call 01277 525 020 or use the quote form and we will give you a straight answer before you book.

Joints and surfaces we work on

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

On site: what to expect

In a busy building, the work is phased so only one area is out of use at a time. Each section is protected, cleaned back and sealed before the next one starts. For a building around West Grinstead, 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. We survey each room, count the joints and note anything behind them that needs another trade.
  2. We agree which rooms close and when, so users always have somewhere to go.
  3. We strip out the old bead and clean off the residue left behind.
  4. Joints are cleaned, degreased and dried before sealing.
  5. A bead of anti-mould sanitary silicone goes in and is tooled to a smooth, cleanable profile.
  6. Each room is handed back once the sealant has had its cure time.

Before we start on site

  • Point out any areas we must not close
  • Arrange parking or a loading space
  • Send your site hours and access windows

Get a fixed quote

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

Ask for a quote

Read more

Should maintenance staff do it?

Some joints are best left to specialists: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.

Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

Accreditations

Trusted. Accredited. Insured.