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

Hersham washroom sealing

Need washroom sealing in Hersham? It’s simple: send details, get a quote, we seal, guaranteed.

  • Panel joints letting water behind
  • Sealant stained black around basins and showers
  • A new bead over an old one coming away
1
Send details
Drawings, photos, a joint schedule or a site 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
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
CHAS & Constructionline
£5m PL insurance

Washroom sealing in Hersham

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

Washroom sealing in Hersham

Closing all the facilities in a building isn’t an option. Work is phased by room or by section, so there are always facilities in use. Give us your site hours and access windows and the phasing is planned around them. If you are dealing with kitchen worktop joints that can’t be kept clean and resealing that didn’t last because the old bead stayed, we can help, on IPS panels and cubicles, showers, trays and wet room floors and accessible toilets and changing rooms alike. Whether you call it commercial sealant work, mastic application or joint sealing, in Hersham it comes down to the same thing: the right product in a properly prepared joint.

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

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
Where
Hersham (KT12)
Region
Surrey
Guarantee
A 12-month guarantee
Price
Quoted before any work starts
Telephone
01277 525 020
Last updated
3 November 2026

Common questions from Hersham clients

Will you work in a care home in Hersham without moving residents out?

Yes. We work around residents’ routines, a room or two at a time. Noise and disruption are kept to a minimum.

Would you work within a site like Walton Community Hospital?

Yes, healthcare and care buildings are part of our work. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.

How long will the new sealant last?

It depends on movement, UV and weather, cleaning, traffic and the product. Treat them as maintenance items and inspect them regularly.

How do I request a quote?

It works in four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. Step one needs little more than photographs and a postcode.

Is it possible to just clean mouldy silicone?

Not for long. The mould is inside the silicone, so it comes back however often it’s cleaned. Replacing the bead is the lasting answer.

When can the area be used after sealing?

The product and site conditions decide that. Some products skin over quickly but need longer to cure fully, and we confirm it before leaving site.

How many days will you need on site?

That varies with the scale of the job, though a typical visit usually takes half a day to a day per washroom, depending on the number of fittings. Larger or phased jobs take longer, and we will give you a timescale with the quote.

How the job changes by surface

Showers and trays

If a tray moves too much or is cracked, it needs attention first, and we will say so before resealing.

Kitchens and tea points

Kitchen joints need to be smooth and sealed so they can be cleaned properly. Where food contact is possible, we use a hygienic, food-safe sealant.

When it isn’t the sealant

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

  • Vanity carcasses that have swollen
  • Condensation from failed extract fans
  • Leaking pipes, traps, wastes or cisterns, which need a plumber

Not sure which it is? You can give us a call on 01277 525 020 or use the quote form and we will tell you honestly before you book.

Joints and surfaces we work on

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

How a job runs

When we get to site, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before any cutting starts, with the work itself normally taking between a morning and a week or so, set by the number of rooms and the phasing you need. Work in places the size of Hersham is planned as a single visit where we can. Clear photographs and measurements help us bring the right products.

  1. Every washroom is checked joint by joint, with loose panels, leaks or damp noted for the right trade.
  2. The phasing is agreed so there are always facilities open.
  3. Failed silicone is removed completely and the surfaces cleaned of every trace.
  4. Joints are cleaned, degreased and dried before sealing.
  5. New sanitary silicone with anti-mould additives goes in and is tooled neat.
  6. Each room is handed back once the sealant has had its cure time.

Before we start on site

  • Point out parking and an unloading spot
  • Clear stock, furniture or equipment away from the joints
  • Send any specification or drawings in advance

Ask for a quote

Photos, drawings or a schedule of the joints and a fixed quote comes back to you. If the job needs a look first, we’ll arrange a site visit.

Ask for a quote

Related advice

What sets the cost

Your fixed quote is built from the real scope. It takes account of:

  • Joint width, depth and condition
  • Induction, permit and paperwork requirements
  • Whether old sealant has to be cut out first
  • Phasing around occupants

The product called for affects the cost, as does the preparation each joint needs, from cutting out to priming and backing rod. Access, phasing and site rules also count.

What we need to price the job

Good information means a firmer quote. Helpful details to send:

  • Your programme or deadline
  • Rough lengths or quantities, or drawings if you have them
  • Access details, including height
  • The type of building and who uses it

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, call 01277 525 020 or send details through our quote form.

For managing agents and facilities managers

We work for building owners and managing agents on everything from one building to a spread of sites around Hersham. Several sites can go on one quote, which keeps the paperwork simple.

Main contractors use us as their sealant subcontractor. We work to your programme, your specification and your site rules.

Maintenance after handover

Problems stay small when the joints are checked regularly. In particular:

  • Leave signs up until the cure time is over
  • Tell us about infection-control or permit rules before we quote
  • Keep extract fans working and vents clear
  • Include joints in routine washroom inspections

Add washroom sealant to routine inspections. Look for black spotting, cracks, peeling edges and gaps at the busiest fittings and photograph anything new.

Leaks through tray and wet-floor joints can go unseen until a ceiling marks below. At that stage, boards or ceilings may need repair so failed joints are worth acting on quickly.

Commercial washrooms in Hersham

The area within 2 miles of Hersham holds several hotels. Behind every hotel door there’s a bathroom whose sealant will need renewing sooner or later. Three care or nursing homes sit less than 2 miles from Hersham. In care settings, wet rooms, assisted bathrooms and en suites rely on clean, sound sealant. We plan the work with the manager so residents are disturbed as little as possible.

Office washrooms on sites such as Hersham Place Technology Park, under half a mile to the south-east of Hersham, are in use all working day, so resealing is phased to keep some open. En suites at hotels like Oatlands Chaser Hotel, 1.2 miles to the west of Hersham, are cleaned daily, which wears silicone over time. Colleges such as Brooklands Technical College - Weybridge Campus, 2.7 miles west of Hersham, have toilets, changing rooms and catering kitchens that can be resealed around term dates.

Hersham is about 1 mile south of Walton-on-Thames, in Surrey. Businesses, contractors and managing agents in Hersham use us for work on washrooms and wet areas, as part of our coverage of Surrey. Across Surrey, 379 places are covered, including Hersham. Sites around London have their own page, roughly 16 miles from Hersham.

If you need washroom sealing in KT12, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. Streets here include Police Station Road, Queensway South and Queensway, and sites on any of them can send details for a fixed quote. Being close to the A244, Hersham is easy to get to with materials and equipment. Sites close to Hersham are covered too, including Burwood Park (1 mile south-west), Walton-on-Thames (1 mile north), Whiteley Village (2 miles south-west), St George's Hill (2 miles west) and Weybridge (2 miles west). Bigger towns within reach include Guildford (11 miles south-west), Woking (8 miles south-west), Camberley (14 miles west), Epsom (6 miles east), Redhill (14 miles south-east) and Ewell (6 miles east).

Landmarks near Hersham

Locally, jobs take us to sites close to The Barley Mow Public House, West End Common and Three Rivers Academy, among other places. Hersham’s nearest station is Walton-On-Thames station, about 0.6 miles north-west. Well-known places in the area include No. 2 New Zealand General Hospital (1.6 miles north-west) and Chessington Castle Hill (4.8 miles east). Green spaces nearby include Claremont Lake and Jubilee Wood.

Map of Hersham © OpenStreetMap contributors
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