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

Commercial washroom and wet-area sealing in St Leonards, Hampshire

Our CSCS-carded applicators take on sealing in commercial washrooms, showers, kitchens and wet areas in St Leonards and the surrounding area. Send details for a fixed quote.

  • Shower tray joints that have opened up
  • Black mould inside silicone joints that cleaning can’t shift
  • Complaints from staff, guests or users about tired washrooms
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
CHAS accredited
£5m PL insurance

Need washroom sealing in St Leonards?

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

Washroom sealing for commercial buildings in St Leonards

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. If you have failed sealant in a tea point or staff kitchen and open joints along basins and vanity units, we can help. Facilities teams, main contractors and managing agents in St Leonards tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

In and around places like St Leonards, hospitality kitchens and toilets see heavy use in busy spells. Sealed joints at sinks, worktops and splashbacks help keep the kitchen cleanable, using a food-safe product near food preparation.

What our 12-month guarantee covers is the way we did the job: the preparation, the sealing and the tooling. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.

Location
St Leonards (BH24)
Region
Hampshire
Guarantee
12 months on our workmanship
Quote
Fixed quote, scope in writing
Telephone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Busy facilities in and around St Leonards

A 2-mile radius around St Leonards takes in a number of hotels. Hotel en suites take daily use, and tired silicone at trays and basins is one of the first things guests notice. Rooms are done in turn so most stay available.

On an industrial estate such as Ashley Heath Industrial Estate, which lies north-west of St Leonards, staff toilets, showers and canteens are where sanitary sealant takes the most wear. En suites at hotels like St Leonards Hotel, under half a mile east of St Leonards, are cleaned daily, which wears silicone over time.

St Leonards is in Hampshire. Our applicators travel to St Leonards for work on washrooms and wet areas, handled exactly as we handle every other area. St Leonards is one of 723 places in Hampshire on our list for washrooms and wet areas. Our Southampton page has more on work in that area.

Work on washrooms and wet areas is covered throughout BH24, whatever the building. Streets here include Cedar Avenue, Birch Close and Malmesbury Road. Just outside St Leonards, we also work in Ashley Heath (1 mile north), St Ives (1 mile north-east), Matchams (1 mile south-east) and Avon Castle (2 miles east). Further afield, our area takes in Lymington (14 miles east), New Milton (10 miles south-east), Ringwood (3 miles north-east), Barton on Sea (10 miles south-east), Ashley (10 miles south-east) and Milford on Sea (13 miles south-east).

Around St Leonards

Recent enquiries here include premises near Avon Heath Country Park, among other places. Well-known places in the area include St Leonard's Hospital (0.9 miles south-west) and Stapehill Abbey (3.9 miles south-west). The countryside around St Leonards includes Linbrook Lake and Blashford Lakes.

Map of St Leonards © OpenStreetMap contributors

Keeping the joints sound

Sealant joints are maintenance items, and how long they last depends on how they’re treated. Our advice:

  • Clear standing water from shower floors where possible
  • Include joints in routine washroom inspections
  • Tell us about infection-control or permit rules before we quote
  • Act on the first split you see at a shower tray

Squeegeeing showers and trays after heavy use helps. Joints that sit wet for hours fail sooner.

Small numbers of failed joints are quick to phase in. Left, it tends to become a building-wide job with more phasing to plan.

Signs you need washroom sealing in St Leonards

Decorators’ caulk and general sealants sometimes end up where sanitary silicone belongs. They don’t stand up to constant water and they discolour and fail early.

What tends to prompt an enquiry:

  • Failed joints along IPS and cubicle panels
  • Sealant laid over old silicone and now peeling
  • Failed sealant in a tea point or staff kitchen
  • Gaps where vanity tops meet the wall

At a college such as Sheiling College, which lies north-east of St Leonards, washroom and kitchen sealant is best renewed in the holidays or in phases during term.

Questions to ask before you book

  • Do they follow the manufacturer’s priming guidance?
  • What level of public liability insurance do they hold?
  • Whether old or failed sealant will be cut out, not overlaid
  • Their pre-qualification and accreditations

Choosing a commercial sealant contractor

Common questions from St Leonards clients

Is St Leonards off your patch?

No. Places such as St Leonards are covered as much as the big towns. We work across Greater London and the South East. Where we can, we group nearby jobs to make the most of each trip.

Could you schedule work at a campus like Sheiling College 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.

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

The failed bead is always removed. Fresh silicone can’t key to an old bead so a bead over the top fails quickly.

Do you take on multi-site work?

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.

How do we ask for a quote?

The quote form is the simplest route, though you can also speak to us on 01277 525 020 or email a schedule or drawings. Include photographs or drawings if you have them.

How long does a typical visit take?

It depends on the scope, but the work usually takes a morning or so for a small washroom, longer where showers and changing rooms are included. Larger or phased jobs take longer, and we’ll give you a timescale with the quote.

Do you work in hospitals, clinics and care homes?

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

Surface by surface

IPS and cubicle panels

Panel systems meet walls, floors and vanity tops at sealed joints. They stop water reaching the panel boards.

Urinals and WC pans

Floor joints around WC pans are often forgotten. They are checked with everything else.

Site staff or a sealant specialist?

There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.

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.

Diagnose, treat, sign off

At the end of each section, we remove the tape, clean down and inspect every joint. If an area should be left alone while the sealant cures, we say how long and put signs out. If neighbouring businesses or buildings around St Leonards need work too, visits can be combined. Mention the building’s opening times and we will work within them.

  1. We survey each room, count the joints and note anything behind them that needs another trade.
  2. The phasing is agreed so there are always facilities open.
  3. The failed silicone is stripped and every face scraped clean of residue.
  4. We clean and dry every surface so the new sealant can grip.
  5. New sanitary silicone with anti-mould additives goes in and is tooled neat.
  6. You get a reopening time for every room, with signage left up until then.

What we need from you

  • Agree which areas must stay open
  • Send any specification or drawings in advance
  • Move anything stored against the joints

Getting a fixed quote

Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we will fill any gaps with a visit.

Get a price

Advice

What happens if it’s left?

A tired-looking washroom doesn’t always need a refurbishment. If the finishes are in good order, replacing the sealant may do much of what’s needed while bigger works are planned. Over time, UV, weather and movement wear any sealant out. Replacing it before it fails keeps water out.

The price depends on the quantity of joints, how much old material needs removing and the access. Call for a fixed quote once you have the details.

Why us?

  • Colour agreed before work starts
  • Colours chosen to suit frames, cladding or finishes where possible
  • Constructionline member for supplier checks
  • Fixed quotes based on photographs, drawings or a visit

Take a look at how commercial sealant jobs are priced or how we’re accredited.

Accreditations

Trusted. Accredited. Insured.