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

Commercial washroom and wet-area sealing in Nash, Kent

Commercial sealant work in Nash for contractors, FMs and building owners: sealing in commercial washrooms, showers, kitchens and wet areas, with a fixed quote first.

  • Users noticing mouldy joints
  • Urinal joints that look unhygienic
  • Open joints at the base of cubicle panels
1
Send details
Tell us about the site, with photos if you have them.
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
12-month guarantee on our workmanship.
South East, London & Scotland
CHAS accredited
£5m PL insurance

Washroom sealing across Nash

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

Work for main contractors and building owners

Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.

Whether you’re a managing agent, a property factor or an owner’s representative: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.

Washroom sealing in Nash, done properly

We reseal washrooms and wet areas in offices, hotels, schools, universities, gyms, healthcare buildings and care homes, plus the kitchens and tea points that go with them. Product and method follow how hard each area is used and cleaned. We work on kitchens and tea points, vanity units and basins and showers, trays and wet room floors, and the failures we are asked to look at most are shower tray joints that have opened up and failed joints along IPS and cubicle panels. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Nash, preparation and product choice get the time they need.

Rural businesses near smaller places such as Nash, from cafés to event venues, rely on washrooms and kitchens that stay clean. We plan the work around bookings and opening times.

Guaranteed is the last step of every job. You get a 12-month guarantee on our workmanship, and the quote explains what it covers.

The Mastic Doctor team beside their liveried vans in front of an office building
Place
Nash (CT3)
Region
Kent
Cover
12 months on every job
Price
A fixed quote before we start
Telephone
01277 525 020
Last updated
3 November 2026

What sealant work can’t fix

A few problems need another trade or a different fix, and we point that out rather than sealing over them:

  • Swollen or delaminated boards behind panels or vanity tops
  • Loose panels, vanity units or tiles, which need fixing first
  • Leaking pipes, traps, wastes or cisterns, which need a plumber

If in doubt, call 01277 525 020 or send photos by email and we will say what we think.

What we seal

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

What happens if it’s left?

Gaps and mould in joints give dirt and bacteria somewhere to sit which matters most in healthcare, food and education settings. Sound, smooth joints are much easier to keep clean. For buildings around smaller places like Nash, water damage can go unnoticed for longer, especially where a building isn’t used daily, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.

Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote.

Why us?

  • Clear, fixed quotes
  • Colours chosen to suit frames, cladding or finishes where possible
  • Fully insured, including public liability cover
  • Constructionline member for supplier checks

Read how commercial sealant jobs are priced or our accreditations.

Do you need washroom sealing in Nash?

A lot of failed washroom sealant was laid over an old bead or a dirty surface. New silicone won’t grip the old, so it soon lets go.

Site and facilities staff are often the first to spot these:

  • Split or peeling sealant at shower trays
  • Failed sealant behind washroom basins
  • A new bead over an old one coming away
  • Stained sealant around pans and urinals

For a site such as St Martins Hospital, which lies west of Nash, sanitary joints in clinical areas need sound, cleanable sealant and a careful method.

Comparing quotes

  • Who will actually carry out the work
  • Can the work be phased to keep areas open?
  • What the guarantee covers, and for how long
  • How joint depth will be controlled

Our contractor checklist

When to bring in a specialist

Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

Diagnose, treat, sign off

We schedule the visit to fit the site hours and access windows you give us. On the day, the work area is kept contained and tidy, and your contact hears from us before we move to the next area. Smaller jobs around Nash can be grouped with others nearby. A fixed quote is given before anything starts.

  1. We survey each room, count the joints and note anything behind them that needs another trade.
  2. A phasing plan keeps part of the building’s facilities in use at all times.
  3. Failed silicone is removed completely and the surfaces cleaned of every trace.
  4. Each joint is degreased and left dry, because silicone won’t bond to damp or soapy surfaces.
  5. New sanitary silicone with anti-mould additives goes in and is tooled neat.
  6. You get a reopening time for every room, with signage left up until then.

Getting the site ready

  • Point out any areas we must not close
  • Send any specification or drawings in advance
  • Tell us your opening times and when work is allowed

Quotes

If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price the work to it. Smaller jobs need nothing more than photos and a few notes.

Get a price

Related advice

Keeping Nash washrooms open while we work

Nash lies roughly 60 miles out from central London. Washrooms in commuter-belt offices take constant weekday traffic, which is why the work is phased.

For a hall at a building such as Elmstone Church, resealing the kitchen and toilets can be fitted between bookings. For an occupier at a site such as Wingham Industrial Estate, which lies south-west of Nash, the canteen and welfare facilities need cleanable joints as much as any office.

Nash is about 7 miles east of Canterbury, in Kent. We cover Nash and the rest of Kent, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. 931 places across Kent fall within our area, including Nash. We also cover London, around 60 miles from Nash.

Commercial sites across CT3 are covered. Close to Nash, our area also takes in Hoaden (1 mile north-east), Perry (1 mile west), Shatterling (1 mile south-west), Elmstone (1 mile north) and Durlock (1 mile south-east). Nearby towns on our patch include Canterbury (7 miles west), Margate (9 miles north-east), Dover (10 miles south), Folkestone (14 miles south), Ramsgate (8 miles north-east) and Broadstairs (10 miles north-east).

Around Nash

Nash’s nearest station is Adisham station, roughly 3.7 miles south-west. Well-known places in the area include White Mill (3.6 miles east) and St Martins Hospital (6 miles west). Open spaces near Nash include Monk's Wall nature reserve.

Map of Nash © OpenStreetMap contributors

Your questions answered

Do we have to close all our washrooms in Nash for resealing?

Not all at once. We take one block of facilities at a time. We’ll tell you the curing time for the product before we start.

Is hospital work, at somewhere like St Martins 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.

Do you need to see the site first?

Photos, drawings or a schedule are often enough to quote. Where they aren’t, we arrange a site visit before quoting.

Is it possible to just clean mouldy silicone?

Cleaning may lighten it, but the mould returns. New anti-mould sanitary silicone is the treatment and point out if ventilation is part of the problem.

Are you CHAS accredited?

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

Do you offer coloured sealant?

Often, yes. Sealants are made in a wide range of standard colours, and matching to RAL references or nearby finishes is commonly requested. We’ll confirm the colours available for the specified product.

Can washrooms stay open while you work?

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

Accreditations

Trusted. Accredited. Insured.