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

Densole washroom sealing

Sealant work in Densole for main contractors, managing agents and facilities managers: sealing in commercial washrooms, showers, kitchens and wet areas, with a fixed quote first.

  • Black mould inside silicone joints that cleaning can’t shift
  • Sealant lifting along a tray edge
  • Complaints from staff, guests or users about tired washrooms
1
Send details
Drawings, photos, a joint schedule or a site visit.
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
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
CHAS & Constructionline
£5m PL insurance

Washroom sealing across Densole

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

Washroom sealing in Densole

In a busy washroom, the sealant typically gives up long before the tiles or fittings. Basin tops, urinal backs, panel joints and shower trays put it under water, chemicals and daily cleaning 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. If you are dealing with urinal joints that look unhygienic and black mould inside silicone joints that cleaning can’t shift, we can put it right. Facilities teams, main contractors and managing agents in Densole tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

Farm shops, cafés and venues in converted rural buildings around places like Densole have busy toilets and kitchens. Tell us your opening times and quiet periods and we’ll plan around them.

The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we are clear about what is covered before work starts.

Location
Densole (CT18)
Region
Kent
Cover
A 12-month guarantee
Quote
Fixed quote, scope in writing
Phone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

What happens if it’s left?

A tired washroom says a lot about how a building is run. Visitors notice black sealant before they notice much else. Resealing is a modest task with a very visible payoff. For buildings around smaller places like Densole, water damage can go unnoticed for longer, especially where a building isn’t used daily, which gives a failed joint time to do damage. Resealing early avoids that.

There’s no price list, since every building and every scope is different. For a fixed figure, call for a quote.

Why clients in Densole choose us

  • Products installed to the manufacturer’s instructions
  • Old sealant cut out, never sealed over
  • Coloured sealants to suit the setting, where available
  • Over 20 years of commercial sealing

See what affects the cost or how we’re accredited.

What the job involves on each surface

Wet-room floors and floor-to-wall joints

We seal the visible joints; we don’t install or repair waterproofing below, and we’ll say if the trouble looks to be beneath the floor.

Changing rooms and gyms

Changing rooms in gyms and leisure centres stay wet and warm, so mould is a constant battle. We use anti-mould sanitary silicone throughout.

Signs you need washroom sealing in Densole

Much of the failed sealant we remove was applied over old silicone or residue. Silicone won’t adhere to a silicone bead, so it soon lets go.

Common reasons buildings call us in:

  • Failed sealant behind washroom basins
  • Sealant laid over old silicone and now peeling
  • Split or peeling sealant at shower trays
  • Mould spotting along silicone joints

Where you are responsible for a hall attached to a building such as St Luke's, its kitchen and toilets need sealant that stays cleanable.

Before you book anyone

  • Their approach to joint depth and backing
  • Proof of insurance
  • Their pre-qualification and accreditations
  • The named product and why it was chosen

How to choose a sealant contractor

General trades versus a specialist

Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.

Busy facilities in and around Densole

Densole is about 60 miles from central London. Office washrooms on business parks see heavy weekday use, which is why the work is phased.

Healthcare washrooms on sites such as Royal Victoria Hospital (3 miles south of Densole) are resealed area by area, under the site’s own infection-control rules. Schools such as Hawkinge Primary School have toilets, changing rooms and kitchens that are best resealed in the holidays.

Densole is about 3 miles north of Folkestone, in Kent. Anywhere in CT18, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. Densole is one of 931 places in Kent on our list for washrooms and wet areas. Sites around London have their own page, roughly 60 miles from Densole.

Business premises anywhere in CT18 are within our area for washrooms and wet areas. Among the streets we cover are St John's Close, St John's Way and Canterbury Road, and sites on any of them can send details for a fixed quote. Close to Densole, our area also takes in Hawkinge (1 mile south), Swingfield Minnis (1 mile north), Old Hawkinge (2 miles south-east), Arpinge (2 miles south-west) and Selsted (2 miles north). Bigger towns within reach include Ashford (13 miles west), Canterbury (11 miles north), Dover (6 miles east), Folkestone (3 miles south), Deal (12 miles north-east) and Hythe (5 miles south-west).

Near you in Densole

Densole’s nearest station is Folkestone West station, roughly 3.1 miles south of the centre. Nearby you’ll also find Elham Valley Countryside Centre And Railway Museum (2.7 miles south-west) and Folkestone Castle (2.1 miles south). Not far away are Cheriton Hill.

Map of Densole © OpenStreetMap contributors

Questions we are asked in Densole

Can you work on a hospital site such as Royal Victoria Hospital?

Yes, healthcare and care buildings are part of our work. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.

Will you plan work around the academic year at somewhere like University Centre Folkestone?

Yes, holiday working periods are the norm on campus jobs. Let us know which documents your site asks for, and we will confirm them alongside the quote.

Can one quote cover more than one building?

Yes. Several buildings can share a single quote, and you deal with one contact throughout.

What’s the quickest route to a quote?

You can use the quote form on this site; alternatively, ring 01277 525 020 or send photos by email. Photos, drawings or a joint schedule help us quote quickly.

Are you fully insured?

Yes. Our insurance certificate can be sent alongside the quote.

Can you work to our specification?

Yes. The specification and the manufacturer’s installation guidance are what we work to, and any queries are raised before we start.

What if there’s asbestos in the old mastic?

The duty to manage asbestos sits with the building’s dutyholder, so for older buildings we ask for the asbestos register first. If anything suspect turns up, we stop until it’s tested.

Diagnose, treat, sign off

We schedule the visit to fit the site hours and access windows you give us. While we are working, the area stays contained and tidy, and your contact hears from us before we move to the next area. Rural sites near Densole may need directions, gate codes or a contact on site. Add it to your enquiry and we will build it into the plan.

  1. First, the phasing is agreed so facilities stay open.
  2. Leaks, loose panels or damp are pointed out first.
  3. Old sealant is stripped and the faces prepared.
  4. The right sanitary or food-safe sealant is applied.
  5. We confirm reopening times for each washroom.

Getting the site ready

  • Share your working hours and any access restrictions
  • Point out any areas we must not close
  • Flag any permit to work we’ll need

Ask for a quote

We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, ring 01277 525 020 or send photos by email.

Ask for a quote

Related advice

Building owners, agents and FMs in Densole

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

If you look after buildings for someone else, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.

Accreditations

Trusted. Accredited. Insured.