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

Capstone washroom sealing

Need washroom sealing in Capstone? It’s simple: send details, get a quote, we seal, guaranteed.

  • Shower tray joints that have opened up
  • Open joints along basins and vanity units
  • Panel joints letting water behind
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
CHAS accredited
Fully insured: £5m PL

Washroom sealing for businesses in Capstone

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

Washroom sealing in Capstone

Accessible WCs, showers and changing areas have their own pinch points: shower trays, wet-room floor edges, basins and floor-to-wall junctions. Gaps in those places let water get under the floor or behind panels so they get particular attention. If you are dealing with urinal joints that look unhygienic and resealing that didn’t last because the old bead stayed, we can put it right, whatever the surface. One point of contact handles commercial sealant work in Capstone from the first photographs to the final walk-round, whether it’s one building or several.

Community buildings around smaller places like Capstone have kitchens and toilets used by many people. Resealing sinks, worktops and WCs with anti-mould silicone keeps them clean and watertight.

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 spell out the cover before we begin.

Where
Capstone (ME7)
Wider area
Medway
Cover
A 12-month guarantee
Quotes
Quoted before any work starts
Call
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

From enquiry to sign-off

We follow your site rules from the start: signing in, inductions and any permit to work. Once we’re cleared to begin, we take the joints in the sequence agreed with you. If others near Capstone need work, visits can be combined. You’ll have a fixed quote before work starts.

  1. We agree which washrooms close and when.
  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 give you a reopening time for every room.

Before we start on site

  • Confirm the product named in the specification
  • Point out parking and an unloading spot
  • Let us know about inductions and permits

Getting a fixed quote

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, phone 01277 525 020 or send photos by email.

Get a quick quote

Advice

Different surfaces, different methods

IPS and cubicle panels

IPS panels and cubicle systems have joints at the wall, the floor and the worktop. They stop water reaching the panel boards.

Healthcare and care settings

Healthcare work is phased so wards, clinics or residents’ areas keep their facilities. Records you need can be confirmed with the quote.

Signs you need washroom sealing in Capstone

Much of the failed sealant we remove was applied over old silicone or residue. Silicone won’t adhere to a silicone bead so it peels away quickly.

It’s worth sending us details if you spot any of the following:

  • Urinal joints that look unhygienic
  • Panel joints letting water behind
  • Sealant lifting along a tray edge
  • Resealing that didn’t last because the old bead stayed

Where you’re responsible for a hall attached to a building such as All Saints Church, its kitchen and toilets need sealant that stays cleanable.

Comparing quotes

  • Their approach to joint depth and backing
  • Whether old or failed sealant will be cut out, not overlaid
  • What level of public liability insurance do they hold?
  • Whether primer will be used where the manufacturer specifies it

Our contractor checklist

What we can’t put right

We seal joints; we don’t mend everything behind them. On its own, sealant can’t deal with:

  • Condensation from failed extract fans
  • Hollow tiles or loose panels behind the joint
  • Swollen or delaminated boards behind panels or vanity tops

Not sure which it is? You can give us a call on 01277 525 020 or email a schedule or drawings and we will tell you honestly.

Joints and surfaces we work on

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

Washroom sealing in Capstone: the local picture

Capstone lies within about 3 miles of the sea, and seaside hospitality normally has a peak season that works washrooms hard. Heavy seasonal use is hard on shower and basin sealant, so resealing in the quieter months keeps rooms ready. Six care or nursing homes sit less than 2 miles from Capstone. Assisted bathrooms and wet rooms in care settings need sanitary sealant that stays cleanable. Work is agreed with the manager, around residents’ routines.

If you manage an office at a site such as Gillingham Business Park, 0.8 miles to the north-east of Capstone, the washrooms and tea points can be done a floor at a time. Student showers at universities like University for the Creative Arts - Rochester, 2.5 miles to the north-west of Capstone, see more use than most, and their silicone shows it.

Capstone is about 1 mile south-west of Gillingham, in Medway. If you are looking for washroom sealing in Capstone, we can help. Across Medway, 54 places are covered, Capstone among them. For work in that direction, see our London page (30 miles or so).

If you need washroom sealing in ME7, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. If your building is just outside Capstone, we cover Darland (1 mile north), Hale (1 mile north-west), Hempstead (1 mile south-east), Gillingham (1 mile north-east) and Chatham (1 mile west). Nearby towns on our patch include Rochester (4 miles north-west), Strood (4 miles north-west), Hoo St Werburgh (5 miles north), Rochester Riverside (3 miles north-west), Brompton (3 miles north-west) and Frindsbury (4 miles north-west).

What’s near Capstone

Around Capstone, our work takes us to commercial buildings near Chatham Grammar School for Girls, The Star pub and The Robert Napier School and the streets around them. The nearest railway station is Gillingham (Kent) station, about 2 miles north of the centre. A little further out are Medway Maritime Hospital (1.7 miles north-west) and Pentagon Shopping Centre (2.3 miles north-west). Open spaces near Capstone include Burham Down and Blue Bell Hill.

Map of Capstone © OpenStreetMap contributors

After the work

Your facilities or cleaning team can help the joints last. Pass these on to them:

  • Leave signs up until the cure time is over
  • Clear standing water from shower floors where possible
  • Report split joints at trays and basins early
  • Keep a record of which washrooms need attention

Any failure in our workmanship within the 12-month guarantee is ours to put right. After that, a routine look catches failing joints early.

A few failed joints can be resealed with hardly any disruption. Left, it tends to become a building-wide job with more phasing to plan.

Capstone: questions and answers

Is Capstone too far out for you?

Not at all. Capstone is within our area. Our area covers London and the South East counties. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.

Is a hospital such as Medway Maritime Hospital somewhere you can work?

Yes, hospitals are one of the sectors we cover. We follow the site’s permits, sign-in and infection-control procedures in every area.

Does weather matter for sealant work?

Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so damp, frosty or very cold days can stop external work. Inside work is seldom held up.

Can you handle several sites?

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

How do you deal with asbestos in old sealant?

Managing asbestos is the dutyholder’s responsibility, so for older buildings we ask for the asbestos register first. Work pauses if suspect material is found, until it has been tested.

Can you send site paperwork?

Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm them with the quote.

Can you follow the specification on our project?

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

Owners, agents and contractors

Blocks and communal areas make up much of the work for housing associations and agents. Work can be phased so residents and staff keep access throughout, and each stage is agreed with your contact.

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, which keeps the paperwork simple.

Accreditations

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