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

Washroom Sealing contractors in Boxley

Washroom sealing in Boxley, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.

  • Urinal joints that look unhygienic
  • Failed sealant in a tea point or staff kitchen
  • Mould spotting along silicone joints
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
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Washroom sealing near Boxley

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

Washroom sealing for commercial buildings in Boxley

When mould has spotted a silicone joint, more cleaning won’t remove it. The mould has rooted into the silicone itself so it returns whatever the cleaning regime. Only replacement gets rid of it for good. If you’re dealing with users noticing mouldy joints and urinal joints that look unhygienic, we can put it right, on urinals and WCs, kitchens and tea points and showers, trays and wet room floors alike. One point of contact handles commercial sealant work in Boxley from the first photos to the final walk-round, whether it’s one building or several.

Halls and community buildings near places like Boxley are used by different groups through the week, and their toilets and kitchens show it. Fresh anti-mould sanitary silicone at sinks, worktops and toilets keeps them cleanable.

Our workmanship is guaranteed for 12 months, in Boxley as everywhere else we work. If our installation lets you down in that time, we return and fix it.

Mastic Doctor team members lined up next to their branded vans outside an office building
Location
Boxley (ME14)
Wider area
Kent
Guarantee
12 months on our workmanship
Quotes
Fixed quote, scope in writing
Telephone
01277 525 020
Updated
3 November 2026

How the job changes by surface

Showers and trays

A tray flexes every time it’s used and is constantly wet. Tray perimeters are a frequent source of leaks.

Basins and vanity tops

Basin joints get wet every time someone washes their hands, so the joint to the wall and around each bowl fails early. They are resealed with anti-mould sanitary silicone.

What sealant work can’t fix

A proper diagnosis includes knowing what sealant can’t do. You will hear from us if the cause turns out to be any of the following:

  • A dripping waste or valve behind a panel
  • Swollen or delaminated boards behind panels or vanity tops
  • Leaks through tanking or membranes below the finishes

If in doubt, call the office on 01277 525 020 or use the quote form and we’ll say what we think.

What we seal

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

Signs you need washroom sealing in Boxley

A lot of failed washroom sealant was laid over an old bead or a dirty surface. New silicone won’t grip the old so it peels away quickly.

These are often picked up first by site or facilities staff:

  • Panel joints letting water behind
  • Open joints along basins and vanity units
  • Black mould inside silicone joints that cleaning can’t shift
  • Resealing that didn’t last because the old bead stayed

For a site such as KIMS Hospital (1.4 miles south of Boxley), sanitary joints in clinical areas need sound, cleanable sealant and a careful method.

Before you book anyone

  • Who will actually carry out the work
  • How the existing material will be dealt with
  • Their plan for phasing and protecting the area
  • Will RAMS and insurance details be available?

Our contractor checklist

Questions we are asked in Boxley

Could you schedule work at a campus like University for the Creative Arts for the vacation?

Yes. Education sites typically want the work in vacations or in phases during term, and we plan to suit. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.

Can you work on a hospital site such as KIMS Hospital?

Yes, provided the work is planned with the site’s estates team. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.

Do you do washroom sealing in healthcare settings?

We work in clinics, hospitals and care homes. Tell us what records you need and we’ll confirm with the quote before we start.

How do we ask for a quote?

You can use the quote form on this site; alternatively, speak to us on 01277 525 020 or email the details over. Include photographs or drawings if you have them.

What sealant do you use in washrooms?

Each area gets the grade that suits it. Washrooms and showers take anti-mould sanitary silicone, and food areas take a hygienic, food-safe sealant where food contact is possible.

Will your applicators have CSCS cards?

Yes. Should the site need card details in advance, let us know and we’ll send them with the quote.

How many days will you need on site?

It depends on the scope, but the work usually takes a morning or so for a small washroom, longer where showers and changing rooms are included. For bigger or phased jobs, we’ll set out a timescale with the quote.

After the work

For the best life from the joints:

  • Tell us about infection-control or permit rules before we quote
  • Clear standing water from shower floors where possible
  • Keep washrooms out of use until we say the sealant has cured
  • Act on the first split you see at a shower tray

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

Inspectors look at whether kitchen surfaces can be kept clean. Failed sealant around sinks and worktops is easy to put right in good time.

On site: what to expect

Where the site stays busy, we agree a sequence with your contact so the disruption stays in one area at once. Each section is protected, cleaned back and sealed before we move to the next. Rural sites near Boxley may need directions, gate codes or a contact on site. Add it to your enquiry and we will build it into the plan.

  1. Every room is surveyed and the failed joints listed.
  2. You get a fixed quote with the phasing plan.
  3. The whole of the old bead is removed.
  4. Joints are degreased and dried.
  5. A sanitary silicone bead is laid and given a smooth tooled finish.
  6. Rooms reopen after the cure time.

What we need from you

  • Tell staff and tenants when we’ll be in
  • Send any specification or drawings in advance
  • Make sure the joints can be reached

Quotes

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, ring 01277 525 020 or email drawings and photos.

Ask for a quote

Read more

Keeping Boxley washrooms open while we work

A 2-mile radius around Boxley takes in several hotels. En suite bathrooms, staff changing rooms and kitchens all need their sanitary silicone renewed in time. We work a handful of rooms at a time, so the hotel keeps letting the rest. Boxley lies roughly 31 miles out from central London, in a commuter belt where offices and business parks are common. Washrooms in commuter-belt offices take constant weekday traffic, which is why the work is phased.

Units at estates like Viewpoint Industrial Estate, 1.1 miles south of Boxley, have welfare blocks whose showers and toilets see shift after shift. Halls of residence and teaching buildings at universities such as University for the Creative Arts (3.1 miles south-west of Boxley) are easiest to reseal during vacations.

Boxley is about 3 miles north of Maidstone, in Kent. Commercial clients in Boxley can call on us for washrooms and wet areas, as part of our coverage of Kent. Boxley is one of 931 places we cover in Kent. Sites around London have their own page, roughly 31 miles from Boxley.

We take on washrooms and wet areas across the ME14 postcode area, for business premises of every kind. For a building on The Street, Styles Lane and Pilgrims Way or nearby, we can quote for washrooms and wet areas. If your building is just outside Boxley, we cover Dunn Street (2 miles north-east), Lidsing (2 miles north-east), Kit's Coty (2 miles north-west), Lordswood (2 miles north) and Scragged Oak (2 miles north-east). Nearby towns on our patch include Maidstone (3 miles south), Sittingbourne (9 miles east), Gravesend (11 miles north-west), Tonbridge (14 miles south-west), Faversham (15 miles east) and Northfleet (12 miles north-west).

Local landmarks in Boxley

We work on buildings around Valley Park School, The King's Arms and The Larches, among other places. Boxley’s nearest station is Maidstone East station, about 2.2 miles south-west. Nearby you will also find KIMS hospital (1.4 miles south) and Allington Castle (1.6 miles south-west). Not far away are Burham Down and Boxley Hills.

Map of Boxley © OpenStreetMap contributors

What sets the cost

What shapes the price:

  • The size and state of each joint
  • Phasing around occupants
  • Which sealant the job calls for
  • Removal of failed or old sealant

What a job costs comes down to the quantity of joints, what has to come out first and how the joints are reached. Call for a fixed quote when you’re ready.

What to include in your enquiry

However big the job, the same details help:

  • How the joints are reached, and at what height
  • The postcode of the building
  • Any dates the work must fit around
  • Approximate linear metres or a joint schedule

Quotes are fixed against the scope you send, so the cost is agreed before work starts. To start the process, ring 01277 525 020 or send details through our quote form.

Accreditations

Trusted. Accredited. Insured.