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

Commercial washroom and wet-area sealing in Round Street, Kent

Washroom sealing for Round Street, from a contractor working since 2005. Fully insured, with a 12-month guarantee.

  • Open joints at the base of cubicle panels
  • Failed sealant behind washroom basins
  • Kitchen worktop joints that can’t be kept clean
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
CHAS & Constructionline
£5m public liability

Washroom sealing across Round Street

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Owners, agents and contractors

Housing associations and managing agents often need work done across blocks and communal areas. Work can be phased so residents and staff keep access throughout, and each stage is agreed with your contact.

Hotels, schools, healthcare sites, offices and retail units come to us directly as well. We plan around the way the building is used, so guests, pupils, patients or staff are disturbed as little as possible.

How we handle washroom sealing in Round Street

Whether it’s a single toilet block in Round Street or a programme across several buildings, the route is the same: details first, then a fixed quote, then the work, then the 12-month guarantee. Photos and a rough count of basins, urinals, showers and cubicles help us give a quick quote, or we can arrange a visit. Site teams most often ask us about a new bead over an old one coming away and open joints along basins and vanity units, across accessible toilets and changing rooms, urinals and WCs and IPS panels and cubicles. One point of contact handles commercial sealant work in Round Street from the first photographs to the final walk-round, whether it’s one building or several.

Community buildings around smaller places like Round Street have kitchens and toilets used by many people. Fresh anti-mould sanitary silicone at sinks, worktops and toilets keeps them cleanable.

Work we carry out in Kent comes with a 12-month guarantee. If an installation problem shows up, call the office on 01277 525 020 or send details through our quote form and we’ll arrange a return visit.

The Mastic Doctor team standing beside their branded vans outside an office building
Location
Round Street (DA13)
Region
Kent
Guarantee
12 months on our workmanship
Quote
Fixed quote, scope in writing
Telephone
01277 525 020
Updated
3 November 2026

When to call us in Round Street

Low-level joints get hit by mop buckets, cleaning trolleys and feet, especially at floor edges and around urinals and WC pans.

Look out for the following:

  • Kitchen worktop joints that can’t be kept clean
  • Resealing that didn’t last because the old bead stayed
  • Complaints from staff, guests or users about tired washrooms
  • Failed joints along IPS and cubicle panels

Healthcare estates like Gravesham Community Hospital, 3.6 miles to the north of Round Street, expect contractors to follow their permits and cleaning rules in every washroom.

What to look for in a quote

  • Health and safety accreditation such as CHAS
  • Will CSCS-carded applicators be on site?
  • How they handle RAMS and site documents
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?

Questions to ask before you appoint anyone

Looking after the joints

Keep the joints in good shape with a few simple steps:

  • Add sealant joints to planned maintenance checks
  • Share your site rules when you send details
  • Squeegee showers and trays after busy periods
  • Leave signs up until the cure time is over

Squeegeeing showers and trays after heavy use helps. Joints that sit wet for hours fail sooner.

In food areas, cleanability is something environmental health officers look at. Resealing sinks, worktops and splashbacks before an inspection is a simple step.

Questions we are asked in Round Street

Is a hospital such as Gravesham Community Hospital somewhere you can work?

Yes. Healthcare sites are among the places we work. Each area is agreed with the ward or department and the estates team in advance.

Will our hotel in Round Street need to close for the work?

Rarely, if ever. We take a few rooms out at a time. Housekeeping and our team agree each day’s rooms.

When can showers be used after new sealant?

The silicone needs time to cure before water reaches it. We plan the phasing around that so there are always rooms open.

Do you offer coloured sealant?

In many cases, yes. Many products come in a range of standard colours, and matching to RAL references or surrounding finishes is often possible. We will confirm the colours available for the specified product.

Can you work to our specification?

Yes. We follow the specification, along with the manufacturer’s installation guidance, and any queries are raised before we start.

What site paperwork can you supply?

Each site asks for different documents, so tell us what you need and we will confirm it when we quote.

Do you need to remove the old sealant?

The failed bead is always removed. Fresh silicone can’t key to an old bead so a bead over the top fails quickly.

From enquiry to sign-off

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Any old material is cut back to clean, sound faces, the manufacturer’s primer is applied where it’s called for, and the sealant is tooled off neatly. Rural sites near Round Street may need directions, gate codes or a contact on site. Add it to your enquiry and we’ll build it into the plan.

  1. Every washroom is checked joint by joint, with loose panels, leaks or damp noted for the right trade.
  2. We agree which rooms close and when, so users always have somewhere to go.
  3. We strip out the old bead and clean off the residue left behind.
  4. Each joint is degreased and left dry, because silicone won’t bond to damp or soapy surfaces.
  5. New sanitary silicone with anti-mould additives goes in and is tooled neat.
  6. You get a reopening time for every room, with signage left up until then.

Getting the site ready

  • Arrange parking or a loading space
  • Warn occupants and staff about the work
  • Send asbestos survey details if the building is pre-2000

Ask for a 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, phone 01277 525 020 or email us.

Get a quick quote

Read more

Different surfaces, different methods

Kitchens and tea points

Worktop, sink and splashback joints in tea points take water and food. Sound joints keep those surfaces easy to clean.

Urinals and WC pans

Urinal backs, troughs and slab joints are resealed with sanitary silicone after the old bead and residue are removed.

Keeping Round Street washrooms open while we work

Central London is about 22 miles from Round Street. Office toilets in the commuter belt are in use from first arrivals to last departures, so we work a block of facilities at a time. A 2-mile radius around Round Street takes in a number of hotels. Behind every hotel door there’s a bathroom whose sealant will need renewing sooner or later. Rooms are done in turn so most stay available.

Church halls and community buildings, such as those at St Mary's Room, have kitchens and toilets used by many groups, and their sanitary sealant works hard. Units at estates like Bowes Industrial Centre (2.4 miles south-west of Round Street) have welfare blocks whose showers and toilets see shift after shift.

Round Street is about 3 miles south of Gravesend, in Kent. We cover Round Street, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Round Street is one of 931 places in Kent on our list. Sites around London have their own page, roughly 22 miles from Round Street.

Commercial sites across DA13 are covered. Close to Round Street, our area also takes in Sole Street (1 mile south), Gold Street (1 mile south-east), Nash Street (1 mile west), Meopham (1 mile south-west) and Henley Street (1 mile south-east). A short drive away, we cover Maidstone (11 miles south-east), Dartford (8 miles north-west), Sevenoaks (11 miles south-west), Gravesend (3 miles north), Tonbridge (14 miles south) and Northfleet (3 miles north-west).

Around Round Street

Locally, jobs take us to sites close to The Railway Inn, Jeskyns and Meopham School and the streets around them. The nearest railway station is Sole Street station, about 0.6 miles south. A little further out are Gravesham Museum (3.5 miles north) and Gravesham Community Hospital (3.6 miles north). Open spaces near Round Street include Gad's Hill and Ranscombe Farm.

Map of Round Street © OpenStreetMap contributors

What we can’t put right

We check first that sealant really is the fix. It won’t put right:

  • Vanity carcasses that have swollen
  • Mould caused by poor ventilation, which will return until the extract is fixed
  • A dripping waste or valve behind a panel

If in doubt, give us a call on 01277 525 020 or use the quote form and we’ll say what we think before you book.

Joints and surfaces we work on

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

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