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

Walliswood washroom sealing

Sealing in commercial washrooms, showers, kitchens and wet areas throughout Walliswood and nearby, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Failed sealant behind washroom basins
  • Users noticing mouldy joints
  • Discoloured joints around urinals and WC pans
1
Send details
Drawings, photos, a joint schedule or a site 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
12-month guarantee on our workmanship.
London, the South East & Scotland
Constructionline member
£5m public liability

Washroom sealing in Walliswood

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

About our washroom sealing in Walliswood

Not every silicone belongs in a washroom. Sanitary grades carry anti-mould additives, and neutral-cure versions avoid the damage acetoxy types can do to some metals, stone and mirror backings. Where food contact is possible, we use a hygienic, food-safe grade. If you are dealing with sealant lifting along a tray edge and gaps where vanity tops meet the wall, we can put it right, on accessible toilets and changing rooms, urinals and WCs and vanity units and basins alike. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Walliswood, that means joint design, primers and backing rod as standard.

In and around smaller places like Walliswood, washroom work is often in halls, pubs, primary schools, care homes and holiday accommodation. Sealant that has gone black with mould normally can’t be cleaned, so it is cut out and replaced.

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.

Mastic Doctor team members lined up next to their branded vans outside an office building
Place
Walliswood (RH5)
Region
Surrey
Guarantee
A 12-month guarantee
Quotes
Fixed quote, scope in writing
Call
01277 525 020
Last updated
3 November 2026

Your questions answered

Is a smaller place like Walliswood outside your area?

Not at all. Walliswood is within our area. We cover Greater London and the counties of the South East. Send photographs and a list of what needs doing, and we’ll plan the job to need as few trips as possible.

Would you work within a site like Horsham Hospital?

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.

What’s the quickest route to a quote?

There are four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. The first step only needs photographs and a postcode.

Do you guarantee washroom sealing?

There is a 12-month guarantee on our workmanship backed by public liability insurance.

Which silicone is right for commercial washrooms?

An anti-mould sanitary silicone in most cases. We use neutral-cure versions on stone, some metals and near mirrors.

When can showers be used after new sealant?

That varies with the sealant and the room temperature. Each room gets its own reopening time from us before we leave it.

Can you work to our specification?

Yes. Send it with your enquiry, and the quote will be based on it, flagging anything that needs clarifying.

How the quote is worked out

These are the things that shape the price:

  • The product specified
  • Access and working height
  • How much existing material needs removing
  • Induction, permit and paperwork requirements

There’s no price list, because the scope varies so much from one building to the next. Call for a quote.

What to include in your enquiry

The more we know, the firmer the quote. When you get in touch, include:

  • Where the site is, with the postcode
  • Drawings or a marked-up plan, if available
  • The type of building and who uses it
  • Clear photographs of the problem areas

To get a fixed quote, speak to us on 01277 525 020 or send photos by email. Our quote form is another easy route.

Looking after the joints

For the best life from the joints:

  • Add sealant joints to planned maintenance checks
  • Report faulty extraction promptly
  • Note failing joints building by building
  • Mention any site permits or estates rules at quote stage

Keep extract fans working and vents clear. A room that stays damp will grow mould on almost anything, so get faulty extract looked at.

A few failed joints can be resealed with hardly any disruption. Left, it tends to become a building-wide job and more closures to manage.

When to bring in a specialist

For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class.

Redoing a failed joint normally costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.

What we can’t put right

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

  • Vanity carcasses that have swollen
  • A dripping waste or valve behind a panel
  • Hollow tiles or loose panels behind the joint

If you are not sure, just phone 01277 525 020 or use the quote form and we’ll give you a straight answer before you book.

What we seal

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

Commercial clients in Walliswood

As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.

Hotels, schools, healthcare sites, offices and retail units book us directly too. We plan around the way the building is used, so the building keeps working while we do.

Wet areas in Walliswood’s workplaces

Walliswood is about 29 miles from central London. Office toilets in the commuter belt are in use from first arrivals to last departures, and resealing in phases keeps facilities available.

For a hall at a building such as Church of St John the Baptist, resealing the kitchen and toilets can be fitted between bookings. At a hospital like Horsham Hospital (5.5 miles south-east of Walliswood), patient and staff washrooms are best done in short phases agreed with the ward. If you manage an office at a site such as Northlands Business Park, which lies south-east of Walliswood, the washrooms and tea points can be done a floor at a time.

Walliswood is about 6 miles north-west of Horsham, in Surrey. Commercial clients in Walliswood use us for work on washrooms and wet areas. Our Surrey coverage takes in 379 places, large and small. For work in that direction, see our Brighton page (24 miles or so).

Work on washrooms and wet areas is covered throughout RH5, whatever the building. Among the streets we cover are Horsham Road, Standon Lane and Oakfields. Nearby places we also cover include Mayes Green (1 mile north), Ewhurst Green (2 miles north-west), Ellen's Green (2 miles south-west), Ewhurst (2 miles north-west) and Cranleigh (4 miles west). A short drive away, we cover Guildford (11 miles north-west), Woking (15 miles north-west), Epsom (15 miles north), Horley (11 miles east), Redhill (12 miles north-east) and Reigate (11 miles north-east).

What’s near Walliswood

We work on buildings around Wallis Wood and The Scarlett Arms Public House, among other places. The closest station to Walliswood is Ockley station, about 3.1 miles north-east of the centre. Nearby you’ll also find Abinger Castle (4.8 miles north) and Horsham Hospital (5.5 miles south-east). Green spaces nearby include Vann Lake and Leith Hill.

Map of Walliswood © OpenStreetMap contributors

Diagnose, treat, sign off

Inspect, seal, sign off: that’s the shape of every visit. We inspect the joints and confirm what’s in scope, then we prepare and seal each joint with the specified product, and we finish with a walk round so the work can be signed off. Rural sites near Walliswood may need directions, gate codes or a contact on site. Add it to your enquiry and we will build it into the plan.

  1. We inspect each washroom and record the joints to be resealed.
  2. You get a fixed quote with the phasing plan.
  3. Old sealant is removed completely and the faces cleaned.
  4. Joints are degreased and dried.
  5. New anti-mould sealant goes in and is tooled neat.
  6. Rooms reopen after the cure time.

Getting the site ready

  • Warn occupants and staff about the work
  • Make sure the joints can be reached
  • Flag any permit to work we will need

Ask for a quote

Quotes are fixed against the scope you send, so the cost is agreed before work starts. To ask for one, phone 01277 525 020 or email the details over.

Ask for a quote

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