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

Commercial washroom and wet-area sealing in Wallington, Hampshire

We carry out sealing in commercial washrooms, showers, kitchens and wet areas in Wallington and the surrounding area. Send photos or drawings for a fixed quote.

  • Split or peeling sealant at shower trays
  • Failed sealant behind washroom basins
  • Failed sealant in a tea point or staff kitchen
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.
London, the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Washroom sealing near Wallington

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

Washroom sealing in Wallington

Our washroom work covers offices, hotels, schools and colleges, leisure centres and gyms, clinics and care homes, plus the kitchens and tea points that go with them. The products and the method are chosen for how heavily each space is used. We work on vanity units and basins, showers, trays and wet room floors and kitchens and tea points, and what we are called in for most is sealant lifting along a tray edge and gaps where vanity tops meet the wall. Looking for mastic applicators who cover Wallington? We’ve been sealing commercial buildings since 2005.

Jobs in a smaller place such as Wallington are often one building: a school’s toilets, a café kitchen, a surgery’s washrooms. Photos of each area help us plan the visit and bring the right sealant.

The 12-month guarantee covers our workmanship: the preparation, the sealing and the tooling. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.

The Mastic Doctor team standing beside their branded vans outside an office building
Where
Wallington (PO16, PO14, PO17)
Wider area
Hampshire
Guarantee
12 months on every job
Quotes
Fixed quote, scope in writing
Telephone
01277 525 020
Updated
3 November 2026

Building owners, agents and FMs in Wallington

Building owners and managing agents use us on sealant work across single buildings or whole portfolios. Several sites can go on one quote, which keeps the paperwork simple.

CHAS accredited and a Constructionline member, we make supplier vetting simple. We are fully insured, and our insurance certificate can go with the quote.

When it isn’t the sealant

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

  • Loose panels, vanity units or tiles, which need fixing first
  • A room that stays damp because ventilation isn’t working
  • Water escaping beneath the floor rather than through a joint

If you’re not sure, just speak to us on 01277 525 020 or email us and we will give you a straight answer before you book.

Joints and surfaces we work on

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

Commercial washrooms in Wallington

Wallington lies within about 1 mile of the sea, and coastal hotels, guest houses and holiday sites tend to fill up in the busy months. Showers and en suites in constant use are where silicone moulds and splits first, and the quieter months are the natural time to reseal. Wallington lies roughly 64 miles out from central London. 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.

Church halls and community buildings, such as those at Parish Church of St Peter and St Paul, have kitchens and toilets used by many groups, and their sanitary sealant works hard. At a hotel such as Lysses House Hotel, which lies west of Wallington, the quieter weeks are the time to reseal bathrooms.

Wallington is about 1 mile east of Fareham, in Hampshire. Across the PO16 postcode area, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. 723 places across Hampshire fall within our area, Wallington among them.

If you need washroom sealing in PO16, PO14 and PO17, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. We cover commercial and managed buildings on Bath Lane, Drift Road and Osborn Road. Main routes into Wallington include the A32. Just outside Wallington, we also work in Fareham Common (1 mile south-west), North Fareham (1 mile north), Fareham (1 mile west), Boarhunt (2 miles north-east) and Crockerhill (2 miles north). Nearby towns on our patch include Gosport (4 miles south), Havant (8 miles east), Eastleigh (11 miles north-west), Horndean (8 miles north-east), Totton (15 miles west) and Chandler's Ford (13 miles north-west).

Landmarks near Wallington

Recent enquiries here include premises near Harrison Primary School, Cams Hill School and The Golden Lion Public House and the streets around them. The closest station to Wallington is Fareham station, about 1 mile west of the centre. A little further out are Fareham Shopping Centre (less than half a mile west) and Knowle Hospital (2.3 miles north-west). Not far away are Portsdown Hill and West of the River Alver.

Map of Wallington © OpenStreetMap contributors

On site: what to expect

On arrival, we sign in, go through any site induction and check how permits are handled. Floors, finishes and fittings next to the joints are covered before any cutting starts, and the work usually takes a morning or so for a small washroom, longer where showers and changing rooms are included. Several jobs near Wallington can be grouped on one trip. Mention the building’s opening times and we’ll work within them.

  1. First, the phasing is agreed so facilities stay open.
  2. Anything behind the joints that needs another trade is flagged.
  3. Old sealant is stripped and the faces prepared.
  4. The right sanitary or food-safe sealant is applied.
  5. We give you a reopening time for every room.

Preparing the site

  • Clear stock, furniture or equipment away from the joints
  • Point out any areas we must not close
  • Tell us what induction or permit system the site runs

Get a fixed quote

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

Get a price

Read more

Common problems we fix in Wallington

Occasionally a joint keeps failing because of a problem behind it: a loose panel, a leaking waste or water coming through the wall. We check for that first and tell you if another trade is needed.

Things that usually lead to an enquiry:

  • Washrooms that look worn because of the sealant
  • Mould spotting along silicone joints
  • A new bead over an old one coming away
  • Gaps where vanity tops meet the wall

Toilets at places like Broadcut Retail Park, less than half a mile north-west of Wallington, are cleaned constantly, which is hard on silicone.

Before you book anyone

  • The terms of the workmanship guarantee
  • Health and safety accreditation such as CHAS
  • Which product they’ll use, and why it suits the joint
  • How the existing material will be dealt with

Choosing a commercial sealant contractor

Different surfaces, different methods

Changing rooms and gyms

Showers, floor edges and vanity units in changing rooms all need sound sealant, and we survey them together.

Basins and vanity tops

Vanity tops and basins are splashed all day, so the joint to the wall and around each bowl fails early. They are resealed with anti-mould sanitary silicone.

Questions about Wallington

Do hotels near Wallington have to close for sealant work?

Rarely. Rooms or floors are done in turn, so the rest of the hotel keeps trading. We agree the order of rooms and the timings with you before we start.

Is Wallington off your patch?

Not at all. Wallington is within our area. We work across Greater London and the South East. Where we can, we group nearby jobs to make the most of each trip.

Do you work to architects’ specifications?

Yes. We follow the specification, along with the manufacturer’s installation guidance.

How do I request a quote?

You can use the quote form on this site; alternatively, ring 01277 525 020 or email a schedule or drawings. Include photos or drawings if you have them.

What will the job cost?

Every job gets its own fixed quote. To get one, give us a call on 01277 525 020 or email drawings and photos with a description of the work.

Do you guarantee washroom sealing?

Our workmanship has a 12-month guarantee backed by public liability insurance.

Are you CHAS accredited and on Constructionline?

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

Keeping the joints sound

Once the work is signed off, these steps help:

  • Report split joints at trays and basins early
  • Share your site rules when you send details
  • Don’t leave trays and floors sitting wet
  • Clean sealant with gentle products and a soft cloth

Squeegeeing showers and trays after heavy use helps. Standing water on a joint all day shortens its life.

Boards behind panels and vanity tops can swell when water gets past a failed joint. After that, those parts need replacing rather than resealing.

Accreditations

Trusted. Accredited. Insured.