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

Commercial washroom and wet-area sealing in Newingreen, Kent

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

  • Failed sealant behind washroom basins
  • Washrooms that look worn because of the sealant
  • Shower tray joints that have opened up
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
CHAS accredited
£5m PL insurance

Washroom sealing for Newingreen sites

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

About our washroom sealing in Newingreen

In a busy washroom, the sealant normally gives up long before the tiles or fittings. 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. The fix is to remove it completely and reseal with sanitary silicone containing anti-mould additives. Site teams most often ask us about sealant laid over old silicone and now peeling and complaints from staff, guests or users about tired washrooms, across urinals and WCs, IPS panels and cubicles and vanity units and basins. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Newingreen is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Smaller places such as Newingreen 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.

We stand by our work with a 12-month guarantee. It covers how we prepared and applied the sealant.

Mastic Doctor team members lined up next to their branded vans outside an office building
Place
Newingreen (CT21)
Wider area
Kent
Cover
12 months on our workmanship
Quotes
Fixed quote, scope in writing
Call
01277 525 020
Page updated
3 November 2026

Surface by surface

Showers and trays

A tray flexes every time it’s used and is constantly wet. Tray perimeters are a frequent source of leaks.

Wet-room floors and floor-to-wall joints

Changing rooms and accessible showers often have wet floors so the edges are checked carefully.

For managing agents and facilities managers

FMs need a contractor who is easy to get on site. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.

Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, with each stage agreed with your site contact.

On site: what to expect

Before any cutting starts, the area is protected: tape along each joint edge and covers over finishes, stock and equipment close by. On site, the work typically takes a few hours for one toilet block, with bigger buildings phased across a number of visits, and our waste is bagged and taken away as we go. Jobs in and around smaller places like Newingreen are usually planned as a single visit, so photographs and measurements up front really help. That way the right products come on the day.

  1. Every room is surveyed and the failed joints listed.
  2. The fixed quote sets out the rooms, the products and the phasing.
  3. Old sealant is removed completely and the faces cleaned.
  4. Joints are degreased and dried.
  5. New anti-mould sealant goes in and is tooled neat.
  6. Each area is handed back when ready.

What we need from you

  • Tell staff and tenants when we will be in
  • Flag any permit to work we’ll need
  • Point out any areas we must not close

Get a fixed quote

Tell us about the building, the joints and when you need the work done, and we will put a fixed quote together. To get it moving, call 01277 525 020 or email us.

Get a price

Related advice

General trades versus a specialist

For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.

The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.

FAQs: Newingreen

Can you take on a job at a hospital such as Royal Victoria Hospital?

Yes, healthcare and care buildings are part of our work. Each area is agreed with the ward or department and the estates team in advance.

Is Newingreen too small for you to travel to?

Not at all. Newingreen 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 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.

Do you need to remove the old sealant?

The failed bead is always removed. Fresh silicone can’t key to an old bead, so sealing over it soon peels.

Can one quote cover more than one building?

Yes. Multi-site work and planned programmes are a core part of the service, with each site phased to suit its occupants.

What about RAMS and site documents?

Requirements differ from site to site, so tell us what you need and we will confirm it when we quote.

Are you CHAS accredited and on Constructionline?

Yes. We are CHAS accredited and a Constructionline member.

What we can’t put right

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

  • Water from plumbing, not from a joint
  • Panel boards already damaged by water
  • Condensation from failed extract fans

If you are not sure, just call 01277 525 020 or email the details over and we’ll give you a straight answer before you book.

Where we work in Newingreen

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

Washroom sealing around Newingreen: points for this area

Newingreen sits close to the coast, within about 3 miles, and places by the sea often rely on visitors, so their hotels and holiday lets see heavy seasonal use. Heavy seasonal use is hard on shower and basin sealant, so we plan the work for quieter weeks where possible. Central London is about 57 miles from Newingreen, within the office belt around the capital. Washrooms in commuter-belt offices take constant weekday traffic, which is why the work is phased.

Schools such as Lympne Church of England Primary School have toilets, changing rooms and kitchens that are best resealed in the holidays. Where you’re responsible for a hall attached to a building such as Pedlinge Chapel, its kitchen and toilets need sealant that stays cleanable. For a site such as Royal Victoria Hospital (5.9 miles east of Newingreen), sanitary joints in clinical areas need sound, cleanable sealant and a careful method.

Newingreen is about 2 miles north-west of Hythe, in Kent. Looking for washroom sealing in Newingreen? We can help, as we do across Kent. Newingreen is one of 931 places in Kent on our list for washrooms and wet areas. Brighton is covered too, some 54 miles away.

Work on washrooms and wet areas is covered throughout CT21. Buildings on Stone Street and Ashford Road are within our area for washrooms and wet areas. If your building is just outside Newingreen, we cover Westenhanger (1 mile north), Berwick (1 mile south-west), Lympne (1 mile south-west), Pedlinge (1 mile south-east) and Sandling (1 mile east). Bigger towns within reach include Ashford (8 miles north-west), Canterbury (13 miles north), Dover (12 miles east), Folkestone (6 miles east), Tower Hamlets (12 miles east) and Hawkinge (6 miles east).

Around Newingreen

Around Newingreen, our work takes us to commercial buildings near The Royal Oak Public House, Brockhill Park Performing Arts College and Sandling Park. For rail, the closest station is Westenhanger station, about 0.6 miles north. Nearby you’ll also find Lympne Castle (1.2 miles south-west) and Royal Victoria Hospital (5.9 miles east). Open spaces near Newingreen include Tolsford Hill and Hatch Park.

Map of Newingreen © OpenStreetMap contributors

Maintenance after handover

For the best life from the joints:

  • Leave signs up until the cure time is over
  • Mention any site permits or estates rules at quote stage
  • Don’t leave an open joint at a basin or tray
  • Make sure washroom ventilation is running

Ask your cleaning team to use gentle products and soft cloths on sealant. Strong acids, solvents and scourers wear the surface over time.

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.

Accreditations

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