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

Commercial washroom and wet-area sealing in Kennington, Kent

Work needed on a washroom in Kennington? We look at it, seal it with the right product and hand it over with a 12-month guarantee.

  • Complaints from staff, guests or users about tired washrooms
  • A new bead over an old one coming away
  • Failed sealant in a tea point or staff kitchen
1
Send details
Photos, drawings or a schedule, or we 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.
London, the South East & Scotland
Constructionline member
Fully insured: £5m PL

Washroom sealing in Kennington

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

Commercial clients in Kennington

Agents, factors and owners’ representatives all follow the same route: send the details, accept a fixed quote, and we carry out and guarantee the work. Keys, access and contacts can be agreed in advance.

Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Kennington can form part of a wider programme.

About our washroom sealing in Kennington

Closing all the facilities in a building isn’t an option. Work is phased by room or by section, so staff, guests or pupils always have somewhere to go. Tell us your site hours and access windows and we’ll plan around them. If you have sealant laid over old silicone and now peeling and open joints along basins and vanity units, we can help, on kitchens and tea points, showers, trays and wet room floors and IPS panels and cubicles alike. A single leaking joint is often how a building in Kennington first comes to us: we look at the rest while we’re there and tell you what we find.

In and around places like Kennington, hospitality kitchens and toilets see heavy use in busy spells. Sealed joints at sinks, worktops and splashbacks help keep the kitchen cleanable, using a food-safe product near food preparation.

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
Location
Kennington (TN24, TN25)
Wider area
Kent
Guarantee
A 12-month guarantee
Quotes
Quoted before any work starts
Phone
01277 525 020
Last updated
3 November 2026

How a job runs

We bring the products specified for the job, along with primers and backing rod. Joint faces are cleaned back to sound, dry surfaces, primer goes on where the manufacturer specifies it, and the sealant is tooled off neatly. For a job in Kennington, the main thing is a clear picture of the work. You will then get a fixed price for the work.

  1. Every room is surveyed and the failed joints listed.
  2. You get a fixed quote with the phasing plan.
  3. Old sealant is removed completely and the faces cleaned.
  4. Each joint is cleaned and left dry.
  5. New anti-mould sealant goes in and is tooled neat.
  6. Each area is handed back when ready.

Preparing the site

  • Move anything stored against the joints
  • Share the asbestos register for older buildings
  • Confirm the product named in the specification

Get a fixed quote

Pricing a project or setting a maintenance budget? We will quote against your scope and drawings that you can work with. For a chat about it beforehand, call the office on 01277 525 020 or send photos by email.

Ask for a quote

Related advice

Aftercare for building managers

To get the most from the new sealant:

  • Include joints in routine washroom inspections
  • Squeegee showers and trays after busy periods
  • Make sure washroom ventilation is running
  • Share your site rules when you send details

We hand each area back once the silicone has had the cure time the product needs. You will be told when showers and basins can be used again and signage stays in place until that time.

Small numbers of failed joints are quick to phase in. Left until every washroom is affected, it becomes a bigger programme and more closures to manage.

Toilets, showers and kitchens around Kennington

There are a good number of hotels within about 2 miles of Kennington. En suite bathrooms, staff changing rooms and kitchens all need their sanitary silicone renewed in time. Kennington lies roughly 48 miles out from central London, within the office belt around the capital. 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.

For a hotel such as The Conningbrook Hotel, 0.5 miles to the east of Kennington, resealing en suites a few rooms at a time keeps the rest available. Office washrooms on sites such as Eurogate Business Park (to the west of Kennington) are in use all working day, so resealing is phased to keep some open.

Kennington is about 2 miles north-east of Ashford, in Kent. We send applicators to Kennington for washrooms and wet areas, handled exactly as we handle every other area. Our Kent coverage takes in 931 places, large and small. For work in that direction, see our London page (48 miles or so).

Work on washrooms and wet areas is covered throughout TN24 and TN25. For a building on Park Road, York Road and Ball Lane or nearby, send details and we will quote for washrooms and wet areas. Access to Kennington is via the A28 among other routes, so getting applicators and materials to site is simple. Nearby places we also cover include Bockhanger (1 mile south-west), Potters Corner (1 mile west), Boughton Lees (2 miles north), Godinton (2 miles south-west) and Willesborough (2 miles south) for washrooms and wet areas. Bigger towns within reach include Canterbury (12 miles north-east), Sittingbourne (14 miles north-west), Folkestone (13 miles south-east), Whitstable (14 miles north-east), Faversham (10 miles north) and Hythe (11 miles south-east).

Landmarks near Kennington

We work on buildings around Towers School and Sixth Form Centre, Conningbrook Lakes Country Park and The Rose Inn, among other places. Kennington’s nearest station is Ashford International station, roughly 1.7 miles south. Well-known places in the area include County Square (1.4 miles south-west) and William Harvey Hospital (2.1 miles south-east). The countryside around Kennington includes Hatch Park.

Map of Kennington © OpenStreetMap contributors

Common questions from Kennington clients

Is a hospital such as The One Ashford Hospital somewhere you can work?

Yes, provided the work is planned with the site’s estates team. Work is phased so departments keep running, under the site’s own rules.

Is Kennington off your patch?

No. Small places get the same service as large ones. We work across Greater London and the South East. Good photographs up front let us bring everything on the first visit.

What if there’s asbestos in the old mastic?

Managing asbestos is the dutyholder’s responsibility, so for older buildings we ask for the asbestos register first. If anything suspect turns up, we stop until it’s tested.

Can you quote from photographs?

That depends on the size and complexity of the job. Straightforward work can often be priced from photos and measurements, while larger or less clear jobs get a site visit first.

How do I request a quote?

You can use the quote form on this site; alternatively, speak to us on 01277 525 020 or send details through our quote form. Include photos or drawings if you have them.

How soon can a washroom be used after resealing?

That varies with the sealant and the room temperature. You’ll get a reopening time for each area before we leave it.

Which silicone is right for commercial washrooms?

Each area gets the grade that suits it. Most washroom joints take sanitary silicone while kitchens may need a food-safe grade.

Why it’s worth doing now in Kennington

Gaps and mould in joints give dirt and bacteria somewhere to sit which matters most in healthcare, food and education settings. A smooth, sealed joint can be cleaned properly. For buildings in places like Kennington, one well-planned visit beats several small ones, so it’s worth dealing with every failing joint at once.

The price depends on the quantity of joints, how much old material needs removing and the access. Call for a fixed quote once you have the details.

What you get with us

  • Over 20 years of commercial sealing
  • Constructionline member
  • Old sealant cut out, never sealed over
  • Clear, fixed quotes

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

Different surfaces, different methods

Kitchens and tea points

Staff kitchens and tea points have joints at worktops, sinks and splashbacks. Sound joints keep those surfaces easy to clean.

Healthcare and care settings

Assisted bathrooms and accessible toilets get heavy use so their sealant tends to fail sooner.

When to call us in Kennington

Mop buckets, trolleys and knocks from users damage joints near the floor, especially at floor edges and around urinals and WC pans.

What tends to prompt an enquiry:

  • Gaps where vanity tops meet the wall
  • Washrooms that look worn because of the sealant
  • Kitchen worktop joints that can’t be kept clean
  • Shower tray joints that have opened up

Halls linked to places like Church of St Mary host groups all week, which is hard on kitchen and toilet sealant.

Comparing quotes

  • Will RAMS and insurance details be available?
  • Who will actually carry out the work
  • How the existing material will be dealt with
  • The terms of the workmanship guarantee

How to choose a sealant contractor

Accreditations

Trusted. Accredited. Insured.