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

Commercial washroom and wet-area sealing in Stone Cross, Kent

Sealing in commercial washrooms, showers, kitchens and wet areas in Stone Cross and across Kent. CHAS accredited and fully insured, with a 12-month guarantee.

  • Failed sealant behind washroom basins
  • Stained sealant around pans and urinals
  • Complaints from staff, guests or users about tired washrooms
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Washroom sealing for businesses in Stone Cross

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Stone Cross: questions and answers

Is Stone Cross off your patch?

Not at all. Stone Cross is within our area. London and every South East county are within our area. We plan jobs in smaller places so return trips are kept to a minimum.

Is hospital work, at somewhere like William Harvey Hospital, something you do?

Yes, healthcare and care buildings are part of our work. Work is phased so departments keep running, under the site’s own rules.

How many days will you need on site?

It depends on the scope, though a typical visit typically takes a few hours for one toilet block, with bigger buildings phased across a number of visits. Larger or phased jobs take longer, and we’ll give you a timescale with the quote.

How do you deal with asbestos in old sealant?

Some older mastics, especially in pre-2000 buildings, can contain asbestos. We check the asbestos register before cutting out old sealant in an older building, and if asbestos is suspected, work stops until it’s tested. We don’t remove asbestos-containing materials.

Will all the toilets be closed at once?

Only the area we are working in is closed. Rooms go back into use once the sealant has cured and we start the next.

How long do sealant joints last?

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

Does the weather affect the work?

Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.

How we handle washroom sealing in Stone Cross

Accessible toilets, shower rooms and changing rooms have joints that work harder than most: shower trays, wet-room floor edges, basins and floor-to-wall junctions. An open joint there lets water track under flooring or behind wall panels so they get particular attention. If you are dealing with mould spotting along silicone joints and kitchen worktop joints that can’t be kept clean, we can put it right, on IPS panels and cubicles, showers, trays and wet room floors and kitchens and tea points alike. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Stone Cross is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Smaller places such as Stone Cross 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.

Our workmanship is guaranteed for 12 months, in Stone Cross as everywhere else we work. If our installation lets you down in that time, we return and fix it.

Location
Stone Cross (TN25)
Wider area
Kent
Cover
12 months on our workmanship
Quotes
Fixed quote, scope in writing
Phone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Diagnose, treat, sign off

Before we leave any area, we remove the tape, clean down and inspect every joint. Where the sealant needs time to cure before use, we tell you and sign the area. If others near Stone Cross need work, visits can be combined. You’ll have a fixed quote before work starts.

  1. We inspect each washroom and record the joints to be resealed.
  2. You get a fixed quote with the phasing plan.
  3. The whole of the old bead is removed.
  4. Each joint is cleaned and left dry.
  5. New anti-mould sealant goes in and is tooled neat.
  6. Rooms reopen after the cure time.

What we need from you

  • Share the asbestos register for older buildings
  • Tell us which areas need to stay in use
  • Warn occupants and staff about the work

Ask for a quote

Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to speak to us on 01277 525 020 or send photos by email with what you know.

Ask for a quote

Advice

Maintenance after handover

For the best life from the joints:

  • Squeegee showers and trays after busy periods
  • Don’t leave an open joint at a basin or tray
  • Keep washrooms out of use until we say the sealant has cured
  • Tell us about infection-control or permit rules before we quote

Each room goes back into use only when the sealant has cured enough. You’ll be told when showers and basins can be used again, and it helps if signs stay up until then.

Leaks through tray and wet-floor joints can go unseen until a ceiling marks below. By then, other trades may be needed as well so failed joints are worth acting on quickly.

Wet areas in Stone Cross’s workplaces

Stone Cross is about 51 miles from central London, in a commuter belt where offices and business parks are common. Office toilets in the commuter belt are in use from first arrivals to last departures, so we work a block of facilities at a time.

Office washrooms on sites such as Bliby Business Centre (0.6 miles north of Stone Cross) are in use all working day, so resealing is phased to keep some open. Customer toilets in retail centres such as Ashford Retail Park, 2.7 miles north of Stone Cross, rarely close, so resealing is phased.

Stone Cross is about 4 miles south of Ashford, in Kent. Across the TN25 postcode area, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. We work across 931 places in Kent. Our Brighton page has more on work in that area (48 miles or so).

If you need washroom sealing in TN25, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. We cover commercial and managed buildings on Stone Cross Road and Frith Road. Nearby places we also cover include Bromley Green (2 miles west), Ruckinge (2 miles south), Orlestone (2 miles south-west), Hamstreet (2 miles south-west) and Kenardington (4 miles south-west). A short drive away, we cover Ashford (4 miles north), Canterbury (15 miles north-east), Folkestone (12 miles east), Faversham (15 miles north), Hythe (8 miles east) and Preston (15 miles north).

Near you in Stone Cross

Around Stone Cross, our work takes us to commercial buildings near Poulton Wood and the streets around them. The closest station to Stone Cross is Ham Street station, about 2.3 miles south-west of the centre. A little further out are William Harvey Hospital (3.5 miles north) and Ashford Designer Outlet (3.1 miles north). For a walk, there’s Orlestone Forest.

Map of Stone Cross © OpenStreetMap contributors

Why it’s worth doing now in Stone Cross

Cleaning mouldy sealant only masks it but the growth is inside the bead and returns. A full reseal deals with it and cleaners stop fighting a losing battle. Around Stone Cross, it’s better to renew all the failing joints at once. Photos of every joint help us quote for the whole job.

Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits, along with the time of year for external work.

Why clients in Stone Cross choose us

  • 12-month guarantee on workmanship
  • Products installed to the manufacturer’s instructions
  • Commercial sealant work since 2005
  • One contact handling all your sites

Read how commercial sealant jobs are priced and our accreditations.

Signs you need washroom sealing in Stone Cross

Decorators’ caulk and general sealants sometimes end up where sanitary silicone belongs. They aren’t made for constant wetting, and they stain, crack or wash out.

It’s worth sending us details if you spot any of the following:

  • Discoloured joints around urinals and WC pans
  • Stained or open joints at kitchen sinks and worktops
  • Sealant laid over old silicone and now peeling
  • Open joints along basins and vanity units

At a hospital like William Harvey Hospital, which lies north of Stone Cross, patient and staff washrooms are best done in short phases agreed with the ward.

Comparing quotes

  • How long is the guarantee, and what does it include?
  • Can the work be phased to keep areas open?
  • Do they follow the manufacturer’s priming guidance?
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?

Questions to ask before you appoint anyone

What sets the cost

Your fixed quote is built from the real scope. It allows for:

  • Removal of failed or old sealant
  • Induction, permit and paperwork requirements
  • How accessible the joints are
  • Phasing around occupants

The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote and we will explain how it’s made up.

What to include in your enquiry

Good information means a firmer quote. When you get in touch, include:

  • The asbestos register, for older buildings
  • How the joints are reached, and at what height
  • Rough lengths or quantities, or drawings if you have them
  • Where the site is, with the postcode

A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Send what you have, and we’ll arrange a site visit if anything is unclear.

How the job changes by surface

Basins and vanity tops

Natural stone tops can be marked by acetoxy silicone and we choose a neutral-cure grade for them.

Changing rooms and gyms

Gym and leisure changing rooms see showers running most of the day so sealant there works very hard. We use anti-mould sanitary silicone throughout.

Accreditations

Trusted. Accredited. Insured.