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

Washroom Sealing in Coryton

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

  • A new bead over an old one coming away
  • Open joints at the base of cubicle panels
  • Open joints along basins and vanity units
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.
South East, London & Scotland
CHAS accredited
£5m public liability

Washroom sealing for Coryton sites

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

About our washroom sealing in Coryton

Accessible WCs, showers and changing areas have their own pinch points: wet-floor edges, tray perimeters, basin tops and the line where flooring meets the wall. An open joint there lets water track under flooring or behind wall panels so they get particular attention. We work on accessible toilets and changing rooms, showers, trays and wet room floors and vanity units and basins, and what we’re called in for most is shower tray joints that have opened up and open joints along basins and vanity units. One point of contact handles commercial sealant work in Coryton from the first photos to the final walk-round, for single jobs and planned programmes alike.

Smaller places such as Coryton still have commercial washrooms and kitchens: in halls, pubs, schools, care homes and farm-based businesses. Sealant that has gone black with mould normally can’t be cleaned, so it is cut out and replaced.

Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

Where
Coryton (SS17)
Region
Thurrock
Guarantee
12 months on every job
Price
A fixed quote before we start
Call
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Leave it or put it right?

A failed joint behind a basin or along a shower tray lets water run where it shouldn’t. That can lead to swollen boards, marked ceilings below and lingering smells which costs more to fix than a reseal. Older rural buildings around Coryton move with the seasons, and rigid or tired sealant can’t keep up. A sealant with the right movement capability, correctly sized, lasts far better.

Pricing washrooms and wet areas depends on how many there are, their condition and the access, and any specification that applies. Call for a quote.

Why clients in Coryton choose us

  • RAL and finish matching where the product range allows
  • A Constructionline member, so easy to vet
  • Fully insured, including public liability cover
  • Coloured sealants to suit the setting, where available

Take a look at how commercial sealant jobs are priced or how we’re accredited.

What sealant work can’t fix

Some faults sit outside our scope, and we point that out rather than sealing over them:

  • Water from plumbing, not from a joint
  • Water escaping beneath the floor rather than through a joint
  • Fittings that move too much to hold a bead

If you’re not sure, just give us a call on 01277 525 020 or send details through our quote form and we will give you a straight answer.

What we seal

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

Questions we’re asked in Coryton

Can you work around term dates at a campus such as Performers College?

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.

Is Coryton too small for you to travel to?

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.

Will all the toilets be closed at once?

We phase it so users always have somewhere to go. We work through the building a room or section at a time. Tell us your site hours and access windows and we’ll plan around them.

Do you guarantee washroom sealing?

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

When is resealing likely to be due?

There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Treat them as maintenance items and inspect them regularly.

Can one quote cover more than one building?

Yes. We take on portfolio and planned maintenance work, planned site by site to suit how each building is used.

How do you deal with asbestos in old sealant?

Asbestos is possible in some older mastics, particularly in buildings from before 2000. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and work stops until any suspect material has been tested. Removing asbestos is a job for asbestos specialists, not us.

Cost factors for washrooms and wet areas

Before we quote, we look at:

  • Which sealant the job calls for
  • How accessible the joints are
  • Induction, permit and paperwork requirements
  • Phasing around occupants

Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you’ll have a fixed figure to work with.

Details that help us quote

For an accurate fixed quote, we need a clear picture of the site. Send us:

  • Specification clauses that apply
  • What the building is and how it’s used
  • The asbestos register, for older buildings
  • How the joints are reached, and at what height

If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price against exactly what is specified. For smaller jobs, photos and a description will do.

Aftercare for building managers

Your facilities or cleaning team can help the joints last. Share these points with them:

  • Make sure washroom ventilation is running
  • Brief cleaning staff to treat joints gently
  • Don’t leave an open joint at a basin or tray
  • Clear standing water from shower floors where possible

Squeegeeing showers and trays after heavy use helps. Joints that sit wet for hours fail sooner.

A split joint at a shower tray can leak for a long time before anyone sees it. By then, other trades may be needed as well, so reseal when you first spot a split.

How a job runs

Where the site stays busy, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed before the next one starts. For a building around Coryton, 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. Failed silicone is removed completely and the surfaces cleaned of every trace.
  4. Joints are cleaned, degreased and dried before sealing.
  5. New sanitary silicone with anti-mould additives goes in and is tooled neat.
  6. Each room is handed back once the sealant has had its cure time.

Preparing the site

  • Confirm the product named in the specification
  • Tell staff and tenants when we will be in
  • Point out any areas we must not close

Get a fixed quote

We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To ask for one, call the office on 01277 525 020 or email us.

Get a quick quote

Advice

What we are called out for in Coryton

Mop buckets, trolleys and knocks from users damage joints near the floor, especially at floor edges and around urinals and WC pans.

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

  • Failed sealant behind washroom basins
  • Users noticing mouldy joints
  • Black mould inside silicone joints that cleaning can’t shift
  • Open joints at the base of cubicle panels

At a college such as Performers College, 2.8 miles to the north-west of Coryton, washroom and kitchen sealant is best renewed in the holidays or in phases during term.

Questions to ask before you book

  • Whether primer will be used where the manufacturer specifies it
  • Whether old or failed sealant will be cut out, not overlaid
  • What level of public liability insurance do they hold?
  • Can the work be phased to keep areas open?

Questions to ask before you appoint anyone

Busy facilities in and around Coryton

Coryton lies within about 1 mile of the sea, and places by the sea often rely on visitors, so their hotels and holiday lets see heavy seasonal use. Showers and en suites in constant use are where silicone moulds and splits first, so resealing in the quieter months keeps rooms ready. Central London is about 26 miles from Coryton, in a commuter belt where offices and business parks are common. Washrooms in commuter-belt offices take constant weekday traffic, which is why the work is phased.

Clinical washrooms at sites like Basildon University Hospital, 3.9 miles to the north-west of Coryton, are scheduled with the ward so the room is out of use for as little time as possible. Welfare facilities in units on estates such as London Gateway Logistics Park (1.3 miles west of Coryton) have showers, toilets and kitchens with sealant that works hard.

Coryton is about 3 miles east of Stanford-le-Hope, in Thurrock. Commercial clients in Coryton use us for work on washrooms and wet areas, as part of our coverage of Thurrock. 27 places across Thurrock fall within our area, including Coryton. Our London page has more on work in that area, about 26 miles away.

Work on washrooms and wet areas is covered throughout SS17. Close to Coryton, our area also takes in Canvey Island (3 miles east), Bowers Gifford (4 miles north), Pitsea (4 miles north), South Benfleet (4 miles north-east) and Tarpots (4 miles north-east). Further afield, our area takes in Stanford-le-Hope (3 miles west), Grays (8 miles west), South Ockendon (9 miles west), Balstonia (3 miles west), Chadwell St Mary (6 miles west) and Aveley (11 miles west).

Local landmarks in Coryton

For rail, the closest station is Benfleet station, roughly 3.1 miles north-east of the centre. Other landmarks nearby include Bay Museum (3.5 miles east) and Basildon University Hospital (3.9 miles north-west). The countryside around Coryton includes Canvey Wick.

Map of Coryton © OpenStreetMap contributors
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