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

Bosham washroom sealing

Sealing in commercial washrooms, showers, kitchens and wet areas in Bosham. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.

  • Sealant stained black around basins and showers
  • Split or peeling sealant at shower trays
  • Kitchen worktop joints that can’t be kept clean
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
Constructionline member
£5m public liability

Washroom sealing for businesses in Bosham

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

Questions about Bosham

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

Yes, holiday working periods are the norm on campus jobs. 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 in a care home near Bosham with residents in?

Yes. We agree rooms and times with the manager and work a few areas at a time. Noise and disruption are kept to a minimum.

How long do sealant joints last?

Nobody can honestly give a figure in years, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular checks let you plan resealing before leaks or damage.

How do I request a quote?

It works in four steps: send details, get a quote, we seal, guaranteed. The first step only needs photos and a postcode.

Is there a guarantee on the work?

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

Are you CHAS accredited and on Constructionline?

Yes. We are CHAS accredited and a Constructionline member, which helps with supplier vetting.

Do your applicators hold CSCS cards?

Yes. Should the site need card details in advance, tell us and we will confirm them with the quote.

Washroom sealing in Bosham, done properly

In a commercial washroom, sealant is normally the first thing to wear out. Around basins, urinals, cubicles, IPS panels and shower trays it takes water, soap, cleaning chemicals and knocks every day and mould that roots into it can’t be cleaned away. We strip it out and lay new anti-mould sanitary silicone. If you are dealing with failed joints along IPS and cubicle panels and sealant lifting along a tray edge, we can put it right. One point of contact handles commercial sealant work in Bosham from the first photos to the final walk-round, for single jobs and planned programmes alike.

Community buildings around smaller places like Bosham have kitchens and toilets used by many people. Fresh anti-mould sanitary silicone at sinks, worktops and toilets keeps them cleanable.

Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.

The Mastic Doctor team standing beside their branded vans outside an office building
Location
Bosham (PO18)
Wider area
West Sussex
Guarantee
12 months on our workmanship
Quotes
Quoted before any work starts
Phone
01277 525 020
Last updated
3 November 2026

Site staff or a sealant specialist?

A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

From enquiry to sign-off

Diagnose, treat, sign off: that’s the shape of every visit. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and we finish with a walk round so the work can be signed off. Smaller jobs around Bosham can be grouped with others nearby, which keeps travel down. You will have a fixed quote before work starts.

  1. We agree which washrooms close and when.
  2. Anything behind the joints that needs another trade is flagged.
  3. Old sealant is stripped and the faces prepared.
  4. We reseal with the grade suited to each area.
  5. We confirm reopening times for each washroom.

What we need from you

  • Have the specification and drawings to hand
  • Point out parking and an unloading spot
  • Let building users know which areas are affected

Get a fixed quote

Send us photographs, drawings or a joint schedule are often enough for a fixed quote. Where a site visit makes more sense, we’ll arrange one.

Ask for a quote

Related advice

Wet areas in Bosham’s workplaces

Bosham sits close to the coast, within about 2 miles, and places by the sea often rely on visitors, so their hotels and holiday lets see heavy seasonal use. Heavy seasonal use is hard on shower and basin sealant, which is why off-season resealing makes sense. There are four care or nursing homes within about 2 miles of Bosham. Assisted bathrooms and wet rooms in care settings need sanitary sealant that stays cleanable. Rooms are done a few at a time at times agreed with the home.

Welfare facilities in units on estates such as Southfield Industrial Park., under half a mile to the north of Bosham, have showers, toilets and kitchens with sealant that works hard. At a hospital like St Richard's Hospital, 3.8 miles east of Bosham, patient and staff washrooms are best done in short phases agreed with the ward.

Bosham is about 3 miles west of Chichester, in West Sussex. Any commercial site in Bosham is covered, for single jobs and planned programmes alike. 373 places across West Sussex fall within our area, Bosham among them. For work in that direction, see our Portsmouth page (10 miles or so).

We take on washrooms and wet areas across the PO18 postcode area. Among the streets we cover are High Street, Viking Way and Merryweather Road. Sites close to Bosham are covered too, including Broadbridge (1 mile north-east), Chidham (1 mile west), Bosham Hoe (1 mile south), Nutbourne (2 miles north-west) and Fishbourne (2 miles east). Bigger towns within reach include Bognor Regis (8 miles east), Chichester (3 miles east), Selsey (7 miles south-east), Littlehampton (14 miles east), Rustington (15 miles east) and Portfield (4 miles east).

Local landmarks in Bosham

Recent enquiries here include premises near The Berkeley Arms Public House. For rail, the closest station is Bosham station, roughly 0.8 miles north-east. A little further out are Chichester Cathedral Treasury (3.2 miles east) and St Richard's Hospital (3.8 miles east). Green spaces nearby include Nutborne Marshes and Stoke Down.

Map of Bosham © OpenStreetMap contributors

Owners, agents and contractors

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

If you look after buildings for someone else, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.

Different surfaces, different methods

Healthcare and care settings

Accessible and assisted washrooms are used and cleaned intensively so their sealant tends to fail sooner.

Kitchens and tea points

Staff kitchens and tea points have joints at worktops, sinks and splashbacks. Sealed joints leave no gaps for food and dirt.

Honest limits

Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. These need a different solution:

  • A room that stays damp because ventilation isn’t working
  • Swollen or delaminated boards behind panels or vanity tops
  • Failed tanking beneath a wet-room floor or behind tiles

If in doubt, call 01277 525 020 or email a schedule or drawings and we will say what we think.

Surfaces we seal

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

Signs you need washroom sealing in Bosham

Washrooms are warm, damp and full of organic residue, and silicone joints hold onto all three. Even anti-mould grades can be colonised over time where extraction is poor.

Typical triggers for a call:

  • Complaints from staff, guests or users about tired washrooms
  • Split or peeling sealant at shower trays
  • A new bead over an old one coming away
  • Black mould inside silicone joints that cleaning can’t shift

Halls of residence and teaching buildings at universities such as University of Chichester (3.6 miles east of Bosham) are easiest to reseal during vacations.

What to look for in a quote

  • How they’ll work around occupants
  • What site paperwork they can supply
  • Will CSCS-carded applicators be on site?
  • Their approach to joint depth and backing

Choosing a commercial sealant contractor

Accreditations

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