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

South Mundham washroom sealing

Sealant work in South Mundham for main contractors, managing agents and facilities managers: sealing in commercial washrooms, showers, kitchens and wet areas, with a fixed quote first.

  • Stained sealant around pans and urinals
  • A new bead over an old one coming away
  • Stained or open joints at kitchen sinks and worktops
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
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
CHAS & Constructionline
£5m public liability

Washroom sealing in South Mundham

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

What affects the price in South Mundham

Before we quote, we look at:

  • Which sealant the job calls for
  • Removal of failed or old sealant
  • Location, for remote and island sites
  • Access and working height

Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we will put a fixed figure on it.

Details that help us quote

Whether it’s one area or a whole building, the same details help:

  • Access details, including height
  • The asbestos register, for older buildings
  • Any specification or named product
  • Where the site is, with the postcode

We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To ask for one, phone 01277 525 020 or email us.

Washroom sealing for commercial buildings in South Mundham

We reseal washrooms and wet areas in offices, hotels, schools, universities, gyms, healthcare buildings 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 have gaps where vanity tops meet the wall and sealant laid over old silicone and now peeling, we can help, whatever the surface. For commercial sealant work in South Mundham, you deal with one contact from quote to sign-off, whether it’s one building or several.

Halls and community buildings near places like South Mundham 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.

We stand by our work with a 12-month guarantee. It covers how we prepared and applied the sealant.

Place
South Mundham (PO20)
Wider area
West Sussex
Cover
12 months on every job
Price
Fixed quote, scope in writing
Call
01277 525 020
Last updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Diagnose, treat, sign off

Occupied buildings need a little choreography. We sign and contain the area we are in, keep walkways clear and move on in phases so staff and visitors can carry on around us. Smaller jobs around South Mundham can be grouped with others nearby. A fixed quote is given before anything starts.

  1. Every room is surveyed and the failed joints listed.
  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. A sanitary silicone bead is laid and given a smooth tooled finish.
  6. Each area is handed back when ready.

What we need from you

  • Make sure the joints can be reached
  • Send your site hours and access windows
  • Explain the parking and delivery arrangements

Getting a fixed quote

Need a figure for a tender or a budget? Send the scope and any drawings, and we’ll return a fixed quote you can plan around. For a chat about it beforehand, call the office on 01277 525 020 or use the quote form.

Get a quick quote

Read more

Commercial clients in South Mundham

Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.

Blocks and communal areas make up much of the work for housing associations and agents. We phase the work so people keep access, with each stage agreed with your site contact.

Questions we’re asked in South Mundham

Is South Mundham off your patch?

Not at all. South Mundham is within our area. We cover Greater London and the counties of the South East. We plan jobs in smaller places so return trips are kept to a minimum.

Could you schedule work at a campus like University of Chichester for the vacation?

Yes. We plan campus work around teaching, exams and residence turnarounds. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.

When can showers be used after new sealant?

Cure times vary by product and temperature. You’ll get a reopening time for each area before we leave it.

What site paperwork can you supply?

Requirements differ from site to site, so list what you need, whether RAMS, insurance or CSCS details, and we will confirm with the quote.

Can you handle several sites?

Yes. A group of buildings can go on one quote, and you deal with one contact throughout across South East England, Greater London and Scotland.

What guarantee comes with washroom resealing?

Every job carries our 12-month guarantee. It applies to our workmanship, not to plumbing leaks or damp from poor ventilation.

Do you work in hospitals, clinics and care homes?

Yes. Your infection-control rules, estates requirements and permits are followed. The work is phased around patients or residents.

Site staff or a sealant specialist?

Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong normally costs more in the end than doing them right.

Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

Keeping South Mundham washrooms open while we work

The sea is no more than about 2 miles from South Mundham, and coastal places often have hotels, guest houses and holiday accommodation with busy seasons. Heavy seasonal use is hard on shower and basin sealant, so we plan the work for quieter weeks where possible. Central London is about 56 miles from South Mundham. Office washrooms on business parks see heavy weekday use, which is why the work is phased.

At a hospital like St Richard's Hospital (3.1 miles north of South Mundham), patient and staff washrooms are best done in short phases agreed with the ward. For a campus such as University of Chichester, which lies north-east of South Mundham, showers in residences and washrooms in teaching blocks can be programmed around term dates.

South Mundham is about 3 miles south of Chichester, in West Sussex. If you’re looking for washroom sealing in South Mundham, we can help, as we do across West Sussex. Across West Sussex, 373 places are covered, South Mundham among them. For work in that direction, see our Portsmouth page.

Business premises anywhere in PO20 are within our area. If your site is on Manor Lane and Honer Lane or close by, we can quote for washrooms and wet areas. Close to South Mundham, our area also takes in Fisher (1 mile west), Street End (2 miles south-west), Sidlesham Common (2 miles west), Nyetimber (2 miles south-east) and Sidlesham (2 miles south-west). Nearby towns on our patch include Bognor Regis (3 miles east), Chichester (3 miles north), Selsey (5 miles south), Littlehampton (10 miles east), Rustington (11 miles east) and Angmering (12 miles east).

Around South Mundham

In South Mundham, that means premises near Chichester High School For Girls and Avisford, among other places. South Mundham’s nearest station is Chichester station, about 2.5 miles north-west of the centre. Other landmarks nearby include Chichester Castle (3 miles north) and Chichester Cathedral Treasury (2.7 miles north-west).

Map of South Mundham © OpenStreetMap contributors

When something else is needed

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

  • Water escaping beneath the floor rather than through a joint
  • Leaking pipes, traps, wastes or cisterns, which need a plumber
  • Mould caused by poor ventilation, which will return until the extract is fixed

Not sure which it is? You can speak to us on 01277 525 020 or send photos by email and we’ll tell you honestly before you book.

Where we work in South Mundham

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

Common problems we fix in South Mundham

Washrooms are warm, damp and full of organic residue, and silicone joints hold onto all three. Anti-mould additives help, but in a poorly ventilated room mould can still take hold eventually.

Typical triggers for a call:

  • Failed sealant behind washroom basins
  • Discoloured joints around urinals and WC pans
  • Mould spotting along silicone joints
  • Shower tray joints that have opened up

For an occupier at a site such as Quarry Lane Industrial Estate, 2.2 miles north of South Mundham, the canteen and welfare facilities need cleanable joints as much as any office.

What to look for in a quote

  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • Who will actually carry out the work
  • Will failed sealant be removed rather than covered?
  • Is the sealant right for the movement and the substrate?

How to choose a sealant contractor

Accreditations

Trusted. Accredited. Insured.