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

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

Planning work on a washroom in Stone Hill? We look at it, seal it with the right product and hand it over with a 12-month guarantee.

  • Kitchen worktop joints that can’t be kept clean
  • Discoloured joints around urinals and WC pans
  • Black mould inside silicone joints that cleaning can’t shift
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
Scope agreed and priced before anything starts.
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
£5m public liability

Washroom sealing near Stone Hill

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Our process

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 we move to the next. For work around Stone Hill, we aim to finish in one visit, so photos and measurements up front really help. Then the right materials arrive with us.

  1. Every washroom is checked joint by joint, with loose panels, leaks or damp noted for the right trade.
  2. The phasing is agreed so there are always facilities open.
  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. You get a reopening time for every room, with signage left up until then.

Getting the site ready

  • For older buildings, check the asbestos register before work
  • Let building users know which areas are affected
  • Share your working hours and any access restrictions

Ask for a quote

If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price against exactly what is specified. Smaller jobs need nothing more than photos and a few notes.

Ask for a quote

Advice

About our washroom sealing in Stone Hill

Our washroom work covers offices, hotels, schools and colleges, leisure centres and gyms, clinics and care homes, along with staff kitchens and tea points. Product and method follow how hard each area is used and cleaned. Most enquiries involve black mould inside silicone joints that cleaning can’t shift and kitchen worktop joints that can’t be kept clean, on showers, trays and wet room floors, vanity units and basins and urinals and WCs. Whoever orders the work in Stone Hill, the brief is normally the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

In and around smaller places like Stone Hill, washroom work is often in halls, pubs, primary schools, care homes and holiday accommodation. Mould gets into sealant in any washroom that doesn’t dry out, and once it’s in, the sealant is replaced.

The 12-month guarantee covers our workmanship: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.

Where
Stone Hill (TN25)
Region
Kent
Cover
12 months on our workmanship
Quotes
Quoted before any work starts
Call
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

When it isn’t the sealant

Before quoting, we check that sealant is the right answer. It won’t put right:

  • Fittings that move too much to hold a bead
  • A dripping waste or valve behind a panel
  • Failed tanking beneath a wet-room floor or behind tiles

Not sure which it is? You can call the office on 01277 525 020 or use the quote form and we will tell you honestly before you book.

Surfaces we seal

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

Common questions from Stone Hill clients

Can you work on a hospital site such as William Harvey Hospital?

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

Will the toilets in our Stone Hill building be out of use?

Rarely all at once: work is phased so some facilities are always available. Each area is handed back once the sealant has cured enough to use.

Are your applicators CSCS-carded?

Yes. If you need card details for site access, let us know and we’ll send them with the quote.

Can you handle several sites?

Yes. We take on portfolio and planned maintenance work, with each site phased to suit its occupants.

How many days will you need on site?

It depends on the scope, but the work usually takes half a day to a day per washroom, depending on the number of fittings. Larger or phased jobs take longer, and we’ll give you a timescale with the quote.

Do you cover Stone Hill?

Yes. We cover Stone Hill and the rest of Kent, within our coverage of Greater London, South East England and Scotland. For a quote, call 01277 525 020 or send photos by email.

What site paperwork can you supply?

Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.

Quoting for work in Stone Hill

We price every job individually. The things that drive the figure:

  • How accessible the joints are
  • Quantities, in metres or numbers
  • Removal of failed or old sealant
  • Backing rod, priming and other preparation

The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a quote and we’ll explain how it’s made up.

Before you send an enquiry

However big the job, these details speed things up:

  • Anything awkward about access or site hours
  • The postcode of the building
  • The product your specification calls for
  • A wide shot and a close-up of the area

Photos, drawings or a schedule of the joints and a fixed quote comes back to you. If the job needs a look first, we’ll arrange a site visit.

For managing agents and facilities managers

Main contractors use us as their sealant subcontractor on new-build and refurbishment projects. We work to your programme, your specification and your site rules.

As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.

Why deal with it now?

Open or mouldy joints are hard to keep hygienic which matters most in healthcare, food and education settings. Sound, smooth joints are much easier to keep clean. For buildings around smaller places like Stone Hill, water damage can go unnoticed for longer, especially where a building isn’t used daily, which gives a failed joint time to do damage. Renewing joints in good time avoids the problem.

Every site prices differently: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.

Why clients in Stone Hill choose us

  • Sealing commercial buildings since 2005
  • Colours chosen to suit frames, cladding or finishes where possible
  • Coloured sealants to suit the setting, where available
  • Joints cleaned back to sound surfaces

Read how commercial sealant jobs are priced or how we’re accredited.

Washroom sealing around Stone Hill: points for this area

Central London is about 54 miles from Stone Hill. Office toilets in the commuter belt are in use from first arrivals to last departures, and resealing in phases keeps facilities available.

For a school such as Sellindge Primary School, washroom and kitchen sealant can be renewed around term dates. Halls linked to places like Church of St Mary host groups all week, which is hard on kitchen and toilet sealant. For buildings on a site such as Evegate Business Park, 1.4 miles west of Stone Hill, washrooms and tea points can be resealed in phases through the working week.

Stone Hill is about 5 miles north-west of Hythe, in Kent. Looking for washroom sealing in Stone Hill? We can help, as we do across Kent. 931 places across Kent fall within our area, Stone Hill among them. We also cover Brighton, around 52 miles from Stone Hill.

Postcode districts covered here: TN25. Streets here include Stone Hill, Southenay Lane and Cooper's Lane. Close to Stone Hill, our area also takes in Lilyvale (1 mile north-west), Brabourne Lees (1 mile north-west), Smeeth (1 mile north-west), Ridgeway (1 mile north-west) and Bircholt Forstal (2 miles north). Nearby towns on our patch include Ashford (6 miles west), Canterbury (12 miles north), Dover (14 miles east), Folkestone (8 miles east), Faversham (15 miles north) and Hythe (5 miles south-east).

Near you in Stone Hill

The nearest railway station is Westenhanger station, about 2.4 miles south-east of the centre. Nearby you’ll also find Lympne Castle (3.1 miles south-east) and William Harvey Hospital (3.8 miles north-west). For a walk, there’s Hatch Park and Tolsford Hill.

Map of Stone Hill © OpenStreetMap contributors

Aftercare for building managers

Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. Our advice:

  • Keep extract fans working and vents clear
  • Inspect washroom sealant regularly
  • Leave signs up until the cure time is over
  • Note failing joints building by building

We hand each area back once the silicone has had the cure time the product needs. We will tell you when the wet areas can be used, and it helps if signs stay up until then.

Mouldy sealant only gets harder to ignore, and complaints follow. Dealing with it while it’s just the sealant keeps it simple.

Accreditations

Trusted. Accredited. Insured.