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

Commercial washroom and wet-area sealing in Capel, Surrey

Washroom sealing for Capel, from a contractor working since 2005. Fully insured, with a 12-month guarantee.

  • Stained sealant around pans and urinals
  • Open joints along basins and vanity units
  • Sealant stained black around basins and showers
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
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
CHAS & Constructionline
£5m public liability

Washroom sealing in Capel

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

Washroom sealing in Capel

Our washroom work covers offices, hotels, schools and colleges, leisure centres and gyms, clinics and care homes, along with staff kitchens and tea points. Product and method follow how hard each area is used and cleaned. Site teams most often ask us about sealant lifting along a tray edge and panel joints letting water behind, across showers, trays and wet room floors, IPS panels and cubicles and accessible toilets and changing rooms. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Capel, that means joint design, primers and backing rod as standard.

Smaller places such as Capel still have commercial washrooms and kitchens: in halls, pubs, schools, care homes and farm-based businesses. Mould gets into sealant in any washroom that doesn’t dry out, and once it’s in, the sealant is replaced.

Building owners and contractors get the same cover: twelve months on the work we carried out. It doesn’t extend to damage, faults in the building or work by others, and we are upfront about that.

Place
Capel (RH5)
Wider area
Surrey
Guarantee
A 12-month guarantee
Quote
A fixed quote before we start
Phone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Doing it in-house

There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we will confirm the paperwork you need with the quote.

For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.

Our process

Occupied buildings need a little choreography. The work area is signed and kept contained, with routes through the building left open and work section by section so the rest of the building stays in use. For a building around Capel, tell us how to find it and who will meet us. Send that with the details and we will confirm the plan with the quote.

  1. First, the phasing is agreed so facilities stay open.
  2. Leaks, loose panels or damp are pointed out first.
  3. Failed sealant and residue are stripped out.
  4. The right sanitary or food-safe sealant is applied.
  5. We give you a reopening time for every room.

Getting the site ready

  • Explain the parking and delivery arrangements
  • Have the specification and drawings to hand
  • Share the asbestos register for older buildings

Quotes

The quickest route to a quote is a few photographs and the site postcode. Upload them with the quote form, or ring 01277 525 020 or email a schedule or drawings to discuss it first.

Ask for a quote

Advice

Toilets, showers and kitchens around Capel

Central London is about 26 miles from Capel. Office washrooms on business parks see heavy weekday use, which is why the work is phased.

Schools such as Scott Broadwood CofE Infant School have toilets, changing rooms and kitchens that are best resealed in the holidays. Church halls and community buildings, such as those at Church of St John the Baptist, have kitchens and toilets used by many groups, and their sanitary sealant works hard.

Capel is about 5 miles south of Dorking, in Surrey. Across the RH5 postcode area, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. Our Surrey coverage takes in 379 places, large and small. We also cover Brighton, around 24 miles from Capel.

Postcode districts covered here: RH5. Among the streets we cover are The Street, Laundry Way and Bakers Way, and sites on any of them can send details for a fixed quote. Sites close to Capel are covered too, including Ockley (2 miles west), Beare Green (2 miles north), Paynes Green (2 miles south-west), Kingsfold (2 miles south) and Holmwood Corner (3 miles north). Nearby towns on our patch include Guildford (13 miles north-west), Epsom (13 miles north), Horley (7 miles east), Redhill (9 miles north-east), Ewell (14 miles north) and Reigate (8 miles north-east).

Local landmarks in Capel

The nearest railway station is Ockley station, roughly 0.6 miles west of the centre. Well-known places in the area include Horsham Hospital (5.6 miles south). Green spaces nearby include Leith Hill and Warnham LNR.

Map of Capel © OpenStreetMap contributors

When it isn’t the sealant

Some faults sit outside our scope, and we point that out rather than sealing over them:

  • Condensation from failed extract fans
  • Swollen or delaminated boards behind panels or vanity tops
  • Failed tanking beneath a wet-room floor or behind tiles

If in doubt, ring 01277 525 020 or send photos by email and we will say what we think before you book.

Where we work in Capel

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

Questions we are asked in Capel

Is a hospital such as Horsham Hospital somewhere you can work?

Yes, provided the work is planned with the site’s estates team. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Do we have to close all our washrooms in Capel for resealing?

Normally only some of them, for a short time. We work in phases so other facilities stay open. Each area is handed back once the sealant has cured enough to use.

Do you do washroom sealing in healthcare settings?

Yes. We work to your estates and infection-control requirements and any site permits, and phase the work so areas keep facilities.

Can you quote from photographs?

That depends on the size and complexity of the job. Straightforward work can often be priced from photographs and measurements, while larger or less clear jobs get a site visit first.

Is it OK to put new silicone on top of the old?

We strip every bit of the failed bead and wipe away the residue before resealing. That’s what makes the new joint last.

What sealant do you use in washrooms?

Each area gets the grade that suits it. Most washroom joints take sanitary silicone while kitchens may need a food-safe grade.

Can you work to our specification?

Yes. We follow the specification, along with the manufacturer’s installation guidance.

After the work

Once the work is signed off, these steps help:

  • Add sealant joints to planned maintenance checks
  • Keep extract fans working and vents clear
  • Clean sealant with gentle products and a soft cloth
  • Keep a record of which washrooms need attention

We hand each area back once the silicone has had the cure time the product needs. You will be told when showers and basins can be used again and signage stays in place until that time.

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.

What happens if it’s left?

When a washroom looks worn, a refit isn’t the only answer. If the finishes are in good order, replacing the sealant may do much of what’s needed while bigger works are planned. Older rural buildings around Capel move with the seasons, and rigid or tired sealant can’t keep up. A sealant with the right movement capability, correctly sized, lasts far better.

What a job costs comes down to how many linear metres there are, how much old material needs removing and the access. Call for a quote when you are ready.

Why appoint us

  • Colours chosen to suit frames, cladding or finishes where possible
  • Failed material removed, not covered up
  • Colour agreed before work starts
  • Commercial sealant work since 2005

Take a look at what affects the cost and how we’re accredited.

What we’re called out for in Capel

Mop buckets, trolleys and knocks from users damage joints near the floor, especially at floor edges and around urinals and WC pans.

Common reasons buildings call us in:

  • Split or peeling sealant at shower trays
  • Complaints from staff, guests or users about tired washrooms
  • Failed joints along IPS and cubicle panels
  • Stained or open joints at kitchen sinks and worktops

Healthcare washrooms on sites such as Horsham Hospital (5.6 miles south of Capel) are resealed area by area, under the site’s own infection-control rules.

Before you book anyone

  • Is the sealant right for the movement and the substrate?
  • What the guarantee covers, and for how long
  • Whether old or failed sealant will be cut out, not overlaid
  • Whether primer will be used where the manufacturer specifies it

How to choose a sealant contractor

Accreditations

Trusted. Accredited. Insured.