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

Commercial washroom and wet-area sealing in Upperton, West Sussex

Washroom sealing for Upperton, from a contractor working since 2005. Fully insured and CHAS accredited.

  • Resealing that didn’t last because the old bead stayed
  • Stained sealant around pans and urinals
  • Open joints along basins and vanity units
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
Scope agreed and priced before anything starts.
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 PL insurance

Washroom sealing for businesses in Upperton

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Washroom sealing for commercial buildings in Upperton

In a commercial washroom, sealant is typically the first thing to wear out. Basin tops, urinal backs, panel joints and shower trays put it under water, chemicals and daily cleaning, and once mould grows into it, it can’t be scrubbed out. We strip it out and lay new anti-mould sanitary silicone. If you have failed sealant behind washroom basins and complaints from staff, guests or users about tired washrooms, we can put it right, whatever the surface. Most enquiries from Upperton start with one failed joint and grow into a wider look at the building: we look at the rest while we are there and tell you what we find.

In and around smaller places like Upperton, washroom work is often in halls, pubs, primary schools, care homes and holiday accommodation. Mould gets into sealant in any washroom that doesn’t dry out, and once it’s in, the sealant is replaced.

Our 12-month guarantee is about workmanship, not wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we spell out the cover before we begin.

The Mastic Doctor team standing beside their branded vans outside an office building
Location
Upperton (GU28)
Region
West Sussex
Guarantee
12 months on every job
Quote
Quoted before any work starts
Phone
01277 525 020
Last updated
3 November 2026

When to call us in Upperton

Low-level joints get hit by mop buckets, cleaning trolleys and feet at skirting lines, urinal bases and around pans.

Site and facilities staff are often the first to spot these:

  • Users noticing mouldy joints
  • A new bead over an old one coming away
  • Gaps where vanity tops meet the wall
  • Failed sealant in a tea point or staff kitchen

Staff changing rooms and patient toilets at places like Midhurst Community Hospital (4.3 miles west of Upperton) need cleanable, sound silicone.

What to look for in a quote

  • How joint depth will be controlled
  • Will CSCS-carded applicators be on site?
  • What the guarantee covers, and for how long
  • How the joint faces will be prepared and primed

Questions to ask before you appoint anyone

General trades versus a specialist

Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

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.

Why deal with it now?

Water gets behind panels and under floors through a failed joint. In a commercial building that can mean damaged boards, stained ceilings on the floor below and odours, and fixing that takes far more work than resealing. Around Upperton, it’s better to renew all the failing joints at once, rather than one at a time. Send photographs of each area and we will quote for the lot.

Every site prices differently: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.

Why appoint us

  • Failed material removed, not covered up
  • Over 20 years of commercial sealing
  • CHAS accredited contractor
  • RAL and finish matching where the product range allows

See what affects the cost or how we’re accredited.

Questions about Upperton

Do you take on work at healthcare sites like Midhurst Community Hospital?

Yes. Healthcare sites are among the places we work. Each area is agreed with the ward or department and the estates team in advance.

Do we have to close all our washrooms in Upperton 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.

Can you send site paperwork?

Each site asks for different documents, so list what you need, whether RAMS, insurance or CSCS details, and we will confirm with the quote.

Is any job too small?

We quote for single jobs as well as large packages and programmes. Send details for a fixed quote.

Do you take on multi-site work?

Yes. We take on portfolio and planned maintenance work, planned site by site to suit how each building is used.

Do you work in Upperton?

Yes. Upperton falls within our area, and the simplest way to start is to phone 01277 525 020 or send photos by email.

Can you work to our specification?

Yes. Send it with your enquiry, and the quote will be based on it.

Different surfaces, different methods

IPS and cubicle panels

Swollen or delaminated boards need replacing and we will point out any we see.

Showers and trays

A tray that rocks or has cracked won’t be fixed by sealant and we flag that beforehand.

Commercial washrooms in Upperton

Upperton lies roughly 42 miles out 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.

Church halls and community buildings, such as those at The Parish Church of All Hallows, have kitchens and toilets used by many groups, and their sanitary sealant works hard. For an occupier at a site such as Hampers Common Industrial Estate (1.1 miles east of Upperton), the canteen and welfare facilities need cleanable joints as much as any office.

Upperton is about 12 miles north-east of Chichester, in West Sussex. Upperton sits inside our coverage and the rest of West Sussex, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. 373 places across West Sussex fall within our area, including Upperton. There’s a separate page for Portsmouth, about 23 miles away.

We take on washrooms and wet areas across the GU28 postcode area. If your building is just outside Upperton, we cover Tillington (1 mile south-east), Hampers Green (1 mile east), River (1 mile west), Petworth (1 mile south-east) and Rotherbridge (2 miles south). Further afield, our area takes in Horsham (14 miles east), Bognor Regis (14 miles south), Chichester (12 miles south-west), Littlehampton (14 miles south), Rustington (14 miles south-east) and Storrington (10 miles south-east).

Landmarks near Upperton

Nearby you’ll also find Midhurst Community Hospital (4.3 miles west) and Coultershaw Heritage Site (2.2 miles south). Green spaces nearby include Graffham Common and Blackdown.

Map of Upperton © OpenStreetMap contributors

On site: what to expect

Working in a building that stays open takes some planning. The work area is signed and kept contained, with routes through the building left open and move on in phases so staff and visitors can carry on around us. For work around Upperton, we aim to finish in one visit, so we ask for photographs and rough sizes first. That way the right products come on the day.

  1. Every room is surveyed and the failed joints listed.
  2. The fixed quote sets out the rooms, the products and the phasing.
  3. The whole of the old bead is removed.
  4. Joints are degreased and dried.
  5. New anti-mould sealant goes in and is tooled neat.
  6. Rooms reopen after the cure time.

Preparing the site

  • Send your site hours and access windows
  • Let building users know which areas are affected
  • Flag any permit to work we’ll need

Getting a fixed quote

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to give us a call on 01277 525 020 or use the quote form with what you know.

Ask for a quote

Related advice

What we can’t put right

Being straight saves everyone time. Fresh joints won’t solve:

  • Hollow tiles or loose panels behind the joint
  • Vanity carcasses that have swollen
  • Leaks through tanking or membranes below the finishes

If you are not sure, just speak to us on 01277 525 020 or email the details over and we’ll give you a straight answer.

Surfaces we seal

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

Trusted. Accredited. Insured.