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

Merston washroom sealing

Planning work on a washroom in Merston? We look at it, seal it with the right product and hand it over with a 12-month guarantee.

  • Sealant laid over old silicone and now peeling
  • Urinal joints that look unhygienic
  • Stained or open joints at kitchen sinks and worktops
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
Constructionline member
£5m public liability

Washroom sealing in Merston

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

What the job involves on each surface

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.

Showers and trays

In staff, hotel and changing-room showers, the tray joint and wall corners take the hardest use. Each bead is stripped, the joint dried and new sealant laid.

Washroom sealing for commercial buildings in Merston

In healthcare and care settings, sealing is part of keeping surfaces cleanable. Your estates and infection-control requirements, and any permits the site uses, shape how we work. Tell us what records you need and we’ll confirm with the quote. We work on kitchens and tea points, accessible toilets and changing rooms and urinals and WCs, and what we are called in for most is panel joints letting water behind and split or peeling sealant at shower trays. One point of contact handles commercial sealant work in Merston from the first photographs to the final walk-round, whether it’s one building or several.

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

Every job we finish is backed by a 12-month workmanship guarantee. If our installation lets you down in that time, we return and fix it.

Where
Merston (PO20)
Region
West Sussex
Cover
12 months on every job
Quote
A fixed quote before we start
Phone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Why act early in Merston

Gaps and mould in joints give dirt and bacteria somewhere to sit, and in kitchens, clinics and schools that is a real concern. Sound, smooth joints are much easier to keep clean. Around Merston, it’s better to renew all the failing joints at once, rather than one at a time. Photos of every joint help us quote for the whole job.

No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.

Why appoint us

  • Colour options checked against the specified product
  • Work carried out by CSCS-carded applicators
  • One contact handling all your sites
  • Colours chosen to suit frames, cladding or finishes where possible

Take a look at what affects the cost and our accreditations and insurance.

Diagnose, treat, sign off

Tell us your site hours and access windows and we will plan around them. On the day, the work area is kept contained and tidy, and we check in with your contact before moving on to each new area. For work around Merston, we aim to finish in one visit, so we ask for photographs and rough sizes first. Then the right materials arrive with us.

  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 confirm reopening times for each washroom.

Preparing the site

  • Clear stock, furniture or equipment away from the joints
  • Let building users know which areas are affected
  • Flag any permit to work we will need

Quotes

Photos, drawings or a schedule of the joints are often enough for a fixed quote. If the job needs a look first, we will arrange a site visit.

Ask for a quote

Advice

Sanitary sealant for Merston buildings

At about 54 miles from central London, Merston is within reach of the capital, in a commuter belt where offices and business parks are common. Office toilets in the commuter belt are in use from first arrivals to last departures, so we work a block of facilities at a time.

For a campus such as University of Chichester, which lies east of Merston, showers in residences and washrooms in teaching blocks can be programmed around term dates. Healthcare washrooms on sites such as St Richard's Hospital (to the north-west of Merston) are resealed area by area, under the site’s own infection-control rules. Halls linked to places like Church of St Giles host groups all week, which is hard on kitchen and toilet sealant.

Merston is about 3 miles south-east of Chichester, in West Sussex. Commercial clients in Merston can call on us for washrooms and wet areas, as part of our coverage of West Sussex. Merston is one of 373 places we cover in West Sussex for washrooms and wet areas. For work in that direction, see our Portsmouth page.

We take on washrooms and wet areas across the PO20 postcode area, for business premises of every kind. Sites close to Merston are covered too, including Runcton (1 mile south-west), Colworth (1 mile east), Oving (1 mile north), North Mundham (1 mile west) and Lagness (1 mile south). Nearby towns on our patch include Worthing (15 miles east), Bognor Regis (3 miles south-east), Chichester (3 miles north-west), Selsey (6 miles south), Littlehampton (9 miles east) and Rustington (10 miles east).

Local landmarks in Merston

Around Merston, our work takes us to commercial buildings near Chichester High School For Girls. The closest station to Merston is Chichester station, about 2.3 miles west. A little further out are The Chichester City Museum (2.3 miles north-west) and St Richard's Hospital (2.3 miles north-west).

Map of Merston © OpenStreetMap contributors

When it isn’t the sealant

Before quoting, we check that sealant is the right answer. It won’t put right:

  • Panel boards already damaged by water
  • A room that stays damp because ventilation isn’t working
  • Loose panels, vanity units or tiles, which need fixing first

Not sure which it is? You can give us a call on 01277 525 020 or send details through our quote form and we’ll tell you honestly before you book.

Surfaces we seal

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

Quoting for work in Merston

The price varies from site to site. Expect it to depend on:

  • Specialist products, such as fire-rated or hygienic sealants
  • Backing rod, priming and other preparation
  • How much there is to seal
  • Whether the work must be split into stages

We don’t publish prices, since every building and every scope is different. For a fixed figure, call for a quote and we’ll price your job on its own details.

Before you send an enquiry

A few photographs plus some basic facts will normally do. Please tell us:

  • The type of building and who uses it
  • When you need the work done
  • Approximate linear metres or a joint schedule
  • Specification clauses that apply

To get a fixed quote, call 01277 525 020 or send details through our quote form, telling us the site location and the nature of the job. You can also send details through our quote form.

Your questions answered

Is a smaller place like Merston outside your area?

No. Places such as Merston are covered as much as the big towns. London and every South East county are within our area. Where we can, we group nearby jobs to make the most of each trip.

Will you plan work around the academic year at somewhere like University of Chichester?

Yes. Tell us the term dates, vacation periods and access windows, and we will plan the work around them. We’re CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.

Is colour matching possible?

It depends on the product specified. Some ranges are wide, others limited, so the available colours are confirmed with the quote.

Can you reseal washrooms in healthcare buildings?

We work in clinics, hospitals and care homes. Tell us what records you need and we will confirm with the quote.

Are you CHAS accredited?

Yes. We are CHAS accredited, we are a Constructionline member and we use CSCS-carded applicators.

What if there’s asbestos in the old mastic?

Managing asbestos is the dutyholder’s responsibility, so for older buildings we ask for the asbestos register first. Work pauses if suspect material is found, until it has been tested.

Will cleaning remove black mould from sealant?

Not for long. The mould is inside the silicone so cleaning only lightens it for a while. Replacing the bead is the lasting answer.

Should maintenance staff do it?

What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.

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

Accreditations

Trusted. Accredited. Insured.