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

Washroom Sealing in Romney Street

Planning work on a washroom in Romney Street? We assess it, carry out the work and guarantee our workmanship for 12 months.

  • Failed joints along IPS and cubicle panels
  • Washrooms that look worn because of the sealant
  • Gaps where vanity tops meet the wall
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
12-month guarantee on our workmanship.
London, the South East & Scotland
Constructionline member
£5m PL insurance

Washroom sealing near Romney Street

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

What happens if it’s left?

Waiting for a holiday closure can leave failing joints in place for a long time. Phasing lets it happen now, with facilities kept in use. Converted and older buildings near places like Romney Street tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.

Pricing washrooms and wet areas depends on how many there are, their condition and the access, and any specification that applies. Call for a quote.

Why us?

  • Constructionline member
  • Colours chosen to suit frames, cladding or finishes where possible
  • Work to your specification and the manufacturer’s guidance
  • Fixed quotes based on photos, drawings or a visit

Take a look at what affects the cost or our accreditations.

How we handle washroom sealing in Romney Street

Since 2005 we have resealed commercial washrooms for facilities teams, contractors and building owners. We are CHAS accredited and a Constructionline member, with CSCS-carded applicators. There is public liability insurance behind every job. Our workmanship is guaranteed for 12 months. We work on urinals and WCs, IPS panels and cubicles and kitchens and tea points, and what we’re called in for most is users noticing mouldy joints and sealant lifting along a tray edge. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Romney Street is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Rural businesses near smaller places such as Romney Street, from cafés to event venues, rely on washrooms and kitchens that stay clean. Tell us your opening times and quiet periods and we will plan around them.

We stand by our work with a 12-month guarantee. It covers how we prepared and applied the sealant, and if something we did falls short, we return to it.

Where
Romney Street (TN15)
Region
Kent
Cover
12 months on our workmanship
Price
A fixed quote before we start
Phone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Looking after the joints

Every sealant joint needs some looking after, and how long they last depends on how they’re treated. We suggest:

  • Note failing joints building by building
  • Clear standing water from shower floors where possible
  • Report faulty extraction promptly
  • Share your site rules when you send details

Mild cleaning products and non-abrasive cloths look after sanitary silicone best. Aggressive descalers, solvents and scouring pads shorten its life over time.

Mouldy sealant only gets harder to ignore and users notice. Replacing it early keeps the job to a reseal.

Keeping Romney Street washrooms open while we work

At about 18 miles from central London, Romney Street is within reach of the capital, in a commuter belt where offices and business parks are common. Office washrooms on business parks see heavy weekday use, and resealing in phases keeps facilities available.

On an industrial estate such as West Kingsdown Industrial Estate (1.7 miles north-east of Romney Street), staff toilets, showers and canteens are where sanitary sealant takes the most wear. Halls linked to places like Church of Saint Mary the Virgin host groups all week, which is hard on kitchen and toilet sealant.

Romney Street is about 4 miles north-east of Sevenoaks, in Kent. Any commercial site in Romney Street is covered, for single jobs and planned programmes alike. Romney Street is one of 931 places we cover in Kent. We also cover London, around 18 miles from Romney Street.

Postcode districts covered here: TN15 for washrooms and wet areas. Streets here include Bower Lane and Romney Street, and sites on any of them can send details for a fixed quote. Just outside Romney Street, we also work in East Hill (1 mile north-east), Knatts Valley (1 mile east), Woodlands (1 mile south-east), Cotman's Ash (1 mile south-east) and Kemsing (2 miles south). Further afield, our area takes in Maidstone (14 miles east), Dartford (8 miles north), Sevenoaks (4 miles south-west), Royal Tunbridge Wells (14 miles south), Gravesend (10 miles north-east) and Tonbridge (9 miles south).

What’s near Romney Street

We work on buildings around Kemsing Down and the streets around them. The nearest railway station is Shoreham (Kent) station, about 1.6 miles west of the centre. A little further out are Otford Heritage Centre (2.1 miles south-west) and Kemsing Castle Bank (1.7 miles south).

Map of Romney Street © OpenStreetMap contributors

When to call us in Romney Street

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.

Clients usually get in touch after noticing something like this:

  • Panel joints letting water behind
  • Mould spotting along silicone joints
  • Gaps where vanity tops meet the wall
  • Users noticing mouldy joints

Healthcare washrooms on sites such as Sevenoaks Hospital (to the south-west of Romney Street) are resealed area by area, under the site’s own infection-control rules.

Comparing quotes

  • Do they follow the manufacturer’s priming guidance?
  • Will RAMS and insurance details be available?
  • Will CSCS-carded applicators be on site?
  • Health and safety accreditation such as CHAS

Our contractor checklist

For managing agents and facilities managers

As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. We are fully insured, and our insurance certificate can go 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.

How the job changes by surface

Wet-room floors and floor-to-wall joints

Sealant at a wet-room floor edge is not a substitute for the waterproofing underneath, and we will say if the trouble looks to be beneath the floor.

Healthcare and care settings

Healthcare work is phased so wards, clinics or residents’ areas keep their facilities. Tell us what records you need and we’ll confirm with the quote.

From enquiry to sign-off

Working in a building that stays open takes some planning. The work area is signed and kept contained, with routes through the building left open and work section by section so the rest of the building stays in use. For work around Romney Street, we aim to finish in one visit, so we ask for photos and rough sizes first. Then the right materials arrive with us.

  1. We start by inspecting the fittings and joints and flagging problems sealant can’t solve.
  2. The phasing is agreed so there are always facilities open.
  3. We strip out the old bead and clean off the residue left behind.
  4. Joints are cleaned, degreased and dried before sealing.
  5. We lay a sanitary silicone bead and tool it smooth so it is easy to clean.
  6. You get a reopening time for every room, with signage left up until then.

Getting the site ready

  • Share the asbestos register for older buildings
  • Agree which areas must stay open
  • Warn occupants and staff about the work

Request a quote

Send us photographs, drawings or a joint schedule and a fixed quote comes back to you. Where a site visit makes more sense, we will arrange one.

Ask for a quote

Read more

Common questions from Romney Street clients

Is a smaller place like Romney Street outside your area?

No. Places such as Romney Street are covered as much as the big towns. We cover Greater London and the counties of the South East. Good photos up front let us bring everything on the first visit.

Do you take on work at healthcare sites like Sevenoaks Hospital?

Yes, hospitals are one of the sectors we cover. Each area is agreed with the ward or department and the estates team in advance.

Are you CHAS accredited and on Constructionline?

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

How soon can a washroom be used after resealing?

Cure times vary by product and temperature. Each room gets its own reopening time from us, and signs stay up until then.

What site paperwork can you supply?

Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.

What’s the quickest route to a quote?

It works in four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. The first step only needs photographs and a postcode.

Which silicone is right for commercial washrooms?

Sanitary silicone with anti-mould additives for most washroom joints. We use neutral-cure versions on stone, some metals and near mirrors.

Accreditations

Trusted. Accredited. Insured.