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

Washroom Sealing in Kensal Rise

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

  • Shower tray joints that have opened up
  • Washrooms that look worn because of the sealant
  • Black mould inside silicone joints that cleaning can’t shift
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Washroom sealing for Kensal Rise sites

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

What we are called out for in Kensal Rise

Occasionally a joint keeps failing because of a problem behind it: a loose panel, a leaking waste or water coming through the wall. We look for it before resealing and say if it needs a plumber or another trade.

Any of the following is a good reason to get the joints checked over:

  • Black mould inside silicone joints that cleaning can’t shift
  • A new bead over an old one coming away
  • Stained or open joints at kitchen sinks and worktops
  • Panel joints letting water behind

At a university such as Imperial College London (1.3 miles south of Kensal Rise), summer is the usual window for resealing residence bathrooms.

Questions to ask before you book

  • Will CSCS-carded applicators be on site?
  • The terms of the workmanship guarantee
  • What level of public liability insurance do they hold?
  • How they handle RAMS and site documents

Choosing a commercial sealant contractor

About our washroom sealing in Kensal Rise

From one staff toilet in Kensal Rise to washrooms across a whole estate, we work the same way: send details, get a fixed quote, we seal, guaranteed. Photos and a rough count of basins, urinals, showers and cubicles help us give a quick quote and a site visit is an option. We work on showers, trays and wet room floors, vanity units and basins and urinals and WCs, and the failures we are asked to look at most are resealing that didn’t last because the old bead stayed and panel joints letting water behind. Looking for mastic applicators who cover Kensal Rise? We have been sealing commercial buildings since 2005.

In Kensal Rise, as across London, commercial kitchens and washrooms need sealed joints that can be cleaned properly. Hygienic and anti-mould sanitary sealants are used where they suit, with food-safe products where food contact is possible.

The 12-month guarantee covers our workmanship: the preparation, the sealing and the tooling. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.

Where
Kensal Rise (W10, NW10, NW6)
Region
Greater London
Guarantee
A 12-month guarantee
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

Sanitary sealant for Kensal Rise buildings

Kensal Rise has a good number of hotels close by, all within 2 miles. Each has en suites, back-of-house toilets and kitchens with sealant that moulds and splits. We work a handful of rooms at a time, so the hotel keeps letting the rest. A London building with hundreds of occupants can’t lose every washroom for a day, so resealing goes floor by floor, agreed with the facilities team.

At a college such as Morley College London (0.8 miles south-east of Kensal Rise), washroom and kitchen sealant is best renewed in the holidays or in phases during term. On a healthcare site such as St Charles' Hospital (0.7 miles south of Kensal Rise), washroom work starts with the infection-control team’s sign-off.

Kensal Rise is about 1 mile south-west of Kilburn, in Greater London. Any commercial site in Kensal Rise is covered, for single jobs and planned programmes alike. We work across 764 places in Greater London, large and small. We also cover London, some 6 miles away.

Business premises anywhere in W10, NW10 and NW6 are within our area for washrooms and wet areas. Among the streets we cover are Hazel Road, Hiley Road and Kempe Road, and sites on any of them can send details for a fixed quote. Close to Kensal Rise, our area also takes in Kensal Green (1 mile west), Kilburn (1 mile north-east), Queen's Park (1 mile east), North Kensington (1 mile south) and Kensal Town (1 mile south-east). Further afield, our area takes in London (6 miles south-east), City of Westminster (3 miles south-east), Marylebone (3 miles east), St Pancras (4 miles east), Shoreditch (6 miles east) and Walthamstow (9 miles north-east).

Local landmarks in Kensal Rise

In Kensal Rise, that means premises near Paradise by Way of Kensal Green pub, Queens Park Community School and Brondesbury College. Kensal Rise has its own railway station: Kensal Rise station. Nearby you’ll also find Brent Museum and Archives (1.1 miles north-west) and Westfield London (1.8 miles south). For a walk, there’s The Long Water and Campden Hill.

Map of Kensal Rise © OpenStreetMap contributors

Leave it or put it right?

Gaps and mould in joints give dirt and bacteria somewhere to sit, and in kitchens, clinics and schools that is a real concern. Sound, smooth joints are much easier to keep clean. Repeat call-outs disrupt occupied London buildings, so a proper job first time, with the old sealant fully removed, is worth it.

The price depends on how many linear metres there are, how much old material needs removing and the access. Call for a quote when you are ready.

Why clients in Kensal Rise choose us

  • CHAS accredited
  • Fully insured, including public liability cover
  • Colour agreed before work starts
  • Standard and matched colours in many product ranges

Read our cost guide and our accreditations and insurance.

How a job runs

We bring the products specified for the job, along with primers and backing rod. Any old material is cut back to clean, sound faces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. Planning a London job such as one in Kensal Rise starts with access: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Give us the hours we can be on site and we’ll schedule to suit.

  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. We reseal with the grade suited to each area.
  5. We give you a reopening time for every room.

Getting the site ready

  • Send your site hours and access windows
  • Let building users know which areas are affected
  • Clear stock, furniture or equipment away from the joints

Request a quote

Photos, drawings or a schedule of the joints are often enough for a fixed quote. If the job needs a look first, we will arrange a site visit.

Get a quick quote

Read more

Building owners, agents and FMs in Kensal Rise

Blocks and communal areas make up much of the work for housing associations and agents. We phase the work so people keep access, with each stage agreed with your site contact.

We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Sites in Kensal Rise can sit alongside others in a wider programme across Greater London.

FAQs: Kensal Rise

Will our hotel in Kensal Rise need to close for the work?

Rarely. Rooms or floors are done in turn, so the rest of the hotel keeps trading. Housekeeping and our team agree each day’s rooms.

Can you work around term dates at a campus such as Imperial College London?

Yes, holiday working periods are the norm on campus jobs. Let us know which documents your site asks for, and we will confirm them alongside the quote.

What will the job cost?

It depends on the job: quantities, access, the product and any phasing. Call for a fixed quote and we will price it properly.

How do we ask for a quote?

The quote form is the simplest route, though you can also give us a call on 01277 525 020 or send details through our quote form. Include photographs or drawings if you have them.

Do your applicators hold CSCS cards?

Yes. Our applicators hold CSCS cards.

Do you guarantee washroom sealing?

A 12-month guarantee covers the work. It covers our workmanship rather than damage, leaks from plumbing or ventilation problems.

How many days will you need on site?

We plan the time on site around your programme and access. You will have an expected duration with the quote.

What sealant work can’t fix

Being straight saves everyone time. Fresh joints won’t solve:

  • A dripping waste or valve behind a panel
  • Loose panels, vanity units or tiles, which need fixing first
  • Condensation from failed extract fans

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

Joints and surfaces we work on

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

What affects the price in Kensal Rise

These are the things that shape the price:

  • Phasing around occupants
  • The size and state of each joint
  • Whether old sealant has to be cut out first
  • Specialist products, such as fire-rated or hygienic sealants

No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.

Before you send an enquiry

Diagnosis starts before we arrive. Tell us:

  • Any specification or named product
  • Whether the building will be occupied during the work
  • Approximate linear metres or a joint schedule
  • Whether an asbestos survey exists

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 email a schedule or drawings.

Accreditations

Trusted. Accredited. Insured.