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

Washroom Sealing contractors in Lenham

Looking for washroom sealing in Lenham? It’s simple: send details, get a quote, we seal, guaranteed.

  • Discoloured joints around urinals and WC pans
  • Failed sealant in a tea point or staff kitchen
  • Failed joints along IPS and cubicle panels
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
Constructionline member
£5m public liability

Need washroom sealing in Lenham?

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Washroom sealing in Lenham

Our washroom work covers offices, hotels, schools and colleges, leisure centres and gyms, clinics and care homes, along with staff kitchens and tea points. The products and the method are chosen for how heavily each space is used. If you’re dealing with users noticing mouldy joints and mould spotting along silicone joints, we can put it right. Facilities teams, main contractors and managing agents in Lenham tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

Jobs in a smaller place such as Lenham are often one building: a school’s toilets, a café kitchen, a surgery’s washrooms. A list and photographs let us quote and plan so it’s done in one visit where possible.

Every job we finish is backed by a 12-month workmanship guarantee, in Lenham as everywhere else we work. If a joint we sealed fails because of how it was installed, we come back and put it right.

Where
Lenham (ME17)
Wider area
Kent
Guarantee
12 months on our workmanship
Quote
Quoted before any work starts
Telephone
01277 525 020
Updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Lenham: questions and answers

Will all the washrooms in our Lenham building be closed at once?

Rarely all at once: work is phased so some facilities are always available. Sanitary silicone needs time to cure before the area is used, and we will tell you how long for the product used.

Is Lenham off your patch?

No. Places such as Lenham are covered as much as the big towns. We cover Greater London and the counties of the South East. Where we can, we group nearby jobs to make the most of each trip.

Do you hold CHAS accreditation?

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

When is resealing likely to be due?

There isn’t a single answer, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular checks let you plan resealing before leaks or damage.

Do you need to remove the old sealant?

The whole of the old bead is removed and the surfaces cleaned before resealing. It’s the difference between a joint that lasts and one that peels.

Which silicone is right for commercial washrooms?

It depends on the joint. Most washroom joints take sanitary silicone while kitchens may need a food-safe grade.

Are you fully insured?

Yes. Our insurance certificate can be sent alongside the quote.

On site: what to expect

Before we leave any area, the masking comes off, the area is cleaned and every joint is checked, ready for your sign-off. Where the sealant needs time to cure before use, we tell you and sign the area. For a site in Lenham, we plan so the whole job is done in one go where possible. Photos with rough sizes let us arrive with everything needed.

  1. Every washroom is checked joint by joint, with loose panels, leaks or damp noted for the right trade.
  2. A phasing plan keeps part of the building’s facilities in use at all times.
  3. Failed silicone is removed completely and the surfaces cleaned of every trace.
  4. We clean and dry every surface so the new sealant can grip.
  5. New sanitary silicone with anti-mould additives goes in and is tooled neat.
  6. Rooms reopen after the product’s cure time, and we move to the next.

Preparing the site

  • Tell us which areas need to stay in use
  • Send asbestos survey details if the building is pre-2000
  • Tell staff and tenants when we’ll be in

Request a quote

The quickest route to a quote is a few photos and the site postcode. Send them through the quote form, or give us a call on 01277 525 020 or email a schedule or drawings if you’d rather talk the job through.

Get a price

Related advice

Keeping Lenham washrooms open while we work

At about 39 miles from central London, Lenham is within reach of the capital. Business park offices have washrooms in daily use by staff, so we work a block of facilities at a time.

Office toilets at parks like Roebuck Business Park, 1.7 miles to the west of Lenham, take steady weekday use, and mouldy silicone soon shows. For a school such as Lenham Primary School, washroom and kitchen sealant can be renewed around term dates.

Lenham is about 7 miles south of Sittingbourne, in Kent. Any commercial site in Lenham is covered, for single jobs and planned programmes alike. Lenham is one of 931 places in Kent on our list. London is covered too, around 39 miles from Lenham.

If you need washroom sealing in ME17, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. If your site is on High Street, Mitchell Close and Hatch Road or close by, send details and we’ll quote for washrooms and wet areas. Just outside Lenham, we also work in Leadingcross Green (1 mile south), Woodside Green (1 mile north-east), West Street (1 mile north-east), Lenham Forstal (2 miles south-east) and Lenham Heath (2 miles south-east). A short drive away, we cover Maidstone (8 miles west), Ashford (9 miles south-east), Sittingbourne (7 miles north), Faversham (9 miles north-east), Minster (13 miles north) and Kings Hill (13 miles west).

Local landmarks in Lenham

In Lenham, that means premises near Kiln Wood, The Red Lion pub and The Lenham School. Lenham has its own railway station: Lenham station. Other landmarks nearby include Coldbridge Castle (2.7 miles south) and The Dog Collar Museum (3.6 miles west).

Map of Lenham © OpenStreetMap contributors

What we are called out for in Lenham

Mop buckets, trolleys and knocks from users damage joints near the floor at skirting lines, urinal bases and around pans.

Most enquiries start with something like this:

  • Users noticing mouldy joints
  • Failed joints along IPS and cubicle panels
  • Kitchen worktop joints that can’t be kept clean
  • Sealant stained black around basins and showers

For a campus such as Canterbury Christ Church University, 2.5 miles to the north-west of Lenham, showers in residences and washrooms in teaching blocks can be programmed around term dates.

Questions to ask before you book

  • How long is the guarantee, and what does it include?
  • Is the sealant right for the movement and the substrate?
  • Whether primer will be used where the manufacturer specifies it
  • Whether their applicators hold CSCS cards

Questions to ask before you appoint anyone

Should maintenance staff do it?

Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.

The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.

How the job changes by surface

Changing rooms and gyms

Shower areas, wet floor edges and vanity areas all have sealant joints, and we survey them together.

Showers and trays

Shower trays move under foot and are wet all day. Tray joints are where many washroom leaks start.

Why act early in Lenham

A tired washroom says a lot about how a building is run. Guests, clients, pupils and patients notice stained joints before they notice much else. Resealing is a modest task with a very visible payoff. In a smaller place such as Lenham, getting a contractor back for a second visit takes time, so we’d suggest renewing all the joints that are going, not just the worst.

Quantities, awkward access and phased working all shape the price. So do site requirements such as inductions and permits, along with the time of year for external work.

What you get with us

  • Commercial sealant work since 2005
  • CHAS accredited contractor
  • Work to your specification and the manufacturer’s guidance
  • Constructionline member for supplier checks

See how commercial sealant jobs are priced or how we’re accredited.

What sealant work can’t fix

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

  • Mould caused by poor ventilation, which will return until the extract is fixed
  • Panel boards already damaged by water
  • Leaking pipes, traps, wastes or cisterns, which need a plumber

If in doubt, speak to us on 01277 525 020 or email the details over and we’ll say what we think.

Surfaces we seal

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

Trusted. Accredited. Insured.