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

Washroom Sealing contractors in Dover

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

  • Split or peeling sealant at shower trays
  • Failed joints along IPS and cubicle panels
  • Resealing that didn’t last because the old bead stayed
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
Constructionline member
£5m PL insurance

Washroom sealing for businesses in Dover

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

Keeping the joints sound

Problems stay small when the joints are checked regularly. Specifically:

  • Include joints in routine washroom inspections
  • Note failing joints building by building
  • Report split joints at trays and basins early
  • Share your site rules when you send details

Keep extract fans working and vents clear. Constant damp lets mould take hold even on anti-mould grades so report fans that aren’t working to your building services team.

A few failed joints can be resealed with hardly any disruption. Left until every washroom is affected, it becomes a bigger programme and more closures to manage.

Washroom sealing for commercial buildings in Dover

We reseal washrooms and wet areas in offices, hotels, schools, universities, gyms, healthcare buildings and care homes, along with staff kitchens and tea points. The products and the method are chosen for how heavily each space is used. If you are dealing with open joints at the base of cubicle panels and failed sealant in a tea point or staff kitchen, we can help, whatever the surface. A single leaking joint is often how a building in Dover first comes to us: we look at the rest while we are there and tell you what we find.

For hospitality businesses in towns like Dover, sealed joints in kitchens and toilets help keep surfaces easy to clean. Environmental health officers look at cleanability, and a sound sanitary or hygienic sealant is part of that.

Building owners and contractors get the same cover: twelve months on the work we carried out. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

The Mastic Doctor team beside their liveried vans in front of an office building
Place
Dover (CT17, CT16, CT15, CT14)
Region
Kent
Cover
12 months on our workmanship
Price
Fixed quote, scope in writing
Phone
01277 525 020
Last updated
3 November 2026

Busy facilities in and around Dover

Dover sits close to the coast, within about 2 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, and the quieter months are the natural time to reseal. A 2-mile radius around Dover takes in plenty of hotels. En suite bathrooms, staff changing rooms and kitchens all need their sanitary silicone renewed in time. The work can go floor by floor, agreed with housekeeping.

For a site such as Buckland Hospital, which lies south-west of Dover, sanitary joints in clinical areas need sound, cleanable sealant and a careful method. Office toilets at parks like White Cliffs Business Park, 1 mile north of Dover, take steady weekday use, and mouldy silicone soon shows. Where you are responsible for a hall attached to a building such as Parish Church of St Andrew Buckland, its kitchen and toilets need sealant that stays cleanable.

Dover is in Kent. Across the CT17 postcode area, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. Across Kent, 931 places are covered, Dover among them. There’s a separate page for London, about 65 miles away.

Commercial sites across CT17, CT16, CT15 and CT14 are covered. Among the streets we cover are London Road, High Street and Church Road. With the A2 and A20 nearby, Dover is straightforward for us to reach. Sites close to Dover are covered too, including River (1 mile north-west), Maxton (1 mile south), Kearsney (1 mile north-west), Whitfield (1 mile north) and Temple Ewell (2 miles north-west). Nearby towns on our patch include Canterbury (14 miles north-west), Folkestone (7 miles south-west), Ramsgate (15 miles north), Deal (7 miles north-east), Hythe (11 miles south-west) and Walmer (6 miles north-east). Dover is one of the busier places in Kent, and we take on washrooms and wet areas for its commercial and public buildings.

Around Dover

Locally, jobs take us to sites close to Connaught Park, The Bull pub and St Edmund's Catholic School and the streets around them. For rail, the closest station is Dover Priory station, roughly 0.9 miles south of the centre. Nearby you’ll also find Dover Castle (1.3 miles south-east) and Crabble Corn Mill (0.7 miles west). Not far away are Dover Western Heights.

Map of Dover © OpenStreetMap contributors

Work for main contractors and building owners

We work for building owners and managing agents on everything from one building to a spread of sites. Several sites can go on one quote, so there’s one set of paperwork to deal with.

When you manage a building on behalf of an owner, 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.

When to bring in 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, which is what makes a joint last.

The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.

Questions about Dover

Do hotels near Dover have to close for sealant work?

In most cases no closure is needed: we work room by room or floor by floor. The plan is built around your bookings.

Could you schedule work at a campus like East Kent College for the vacation?

Yes. Tell us the term dates, vacation periods and access windows, and we’ll plan the work around them. We’re CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.

How soon can a washroom be used after resealing?

The silicone needs time to cure before water reaches it. We plan the phasing around that so facilities are never short.

Do your applicators hold CSCS cards?

Yes. If you need card details for site access, tell us and we will confirm them with the quote.

What site paperwork can you supply?

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

Can washrooms stay open while you work?

Just the room being resealed is out of use. Rooms go back into use once the sealant has cured, then we move on.

Do you take on small jobs?

Small jobs are welcome alongside larger packages. Photos and a description are enough to start.

Surface by surface

Changing rooms and gyms

Gym and leisure changing rooms see showers running most of the day, so mould is a constant battle. Anti-mould sanitary silicone is the standard choice.

Kitchens and tea points

In commercial kitchens, smooth, cleanable joints help keep the kitchen hygienic. Where food contact is possible, we use a hygienic, food-safe sealant.

From enquiry to sign-off

We follow your site rules from the start: signing in, inductions and any permit to work. Once we are cleared to begin, the joints are worked through in the order agreed with your site contact. In a town such as Dover, most jobs are single buildings. Your photographs, drawings or a site visit come first, followed by a fixed quote.

  1. We start by inspecting the fittings and joints and flagging problems sealant can’t solve.
  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. We clean and dry every surface so the new sealant can grip.
  5. A bead of anti-mould sanitary silicone goes in and is tooled to a smooth, cleanable profile.
  6. Each room is handed back once the sealant has had its cure time.

Preparing the site

  • Flag any permit to work we’ll need
  • Make sure the joints can be reached
  • Point out parking and an unloading spot

Getting a fixed quote

Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to phone 01277 525 020 or email the details over with what you know.

Get a quick quote

Read more

Cost factors for washrooms and wet areas

Before we quote, we look at:

  • Any access equipment needed
  • Backing rod, priming and other preparation
  • Quantities, in metres or numbers
  • Distance, for remote addresses

A quote for washrooms and wet areas depends on how many there are, their condition and the access, plus any specification you are working to. Ask us for a fixed quote.

Details that help us quote

To price the job accurately, we need a clear picture of the site. Send us:

  • Rough lengths or quantities, or drawings if you have them
  • Photos of the joints, close up and from further back
  • The asbestos register, for older buildings
  • Any specification or named product

A handful of photographs and a postcode is the fastest way to a quote. Send them through the quote form, or ring 01277 525 020 or send details through our quote form if you’d rather talk the job through.

Accreditations

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