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

Washroom Sealing in Whiteley

We carry out sealing in commercial washrooms, showers, kitchens and wet areas in Whiteley and the surrounding area. Send details for a fixed quote.

  • Shower tray joints that have opened up
  • Panel joints letting water behind
  • Discoloured joints around urinals and WC pans
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
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Washroom sealing near Whiteley

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

Signs you need washroom sealing in Whiteley

Occasionally a joint keeps failing because of a problem behind it: loose fixings, a dripping trap or damp in the wall. We look for it before resealing and say if it needs a plumber or another trade.

Typical triggers for a call:

  • Discoloured joints around urinals and WC pans
  • Failed sealant behind washroom basins
  • Split or peeling sealant at shower trays
  • Washrooms that look worn because of the sealant

Office washrooms on sites such as Solent Business Park, 0.6 miles south-east of Whiteley, are in use all working day, so resealing is phased to keep some open.

Questions to ask before you book

  • Whether old or failed sealant will be cut out, not overlaid
  • How long is the guarantee, and what does it include?
  • Their pre-qualification and accreditations
  • Their plan for phasing and protecting the area

Choosing a commercial sealant contractor

How we handle washroom sealing in Whiteley

Our washroom work covers offices, hotels, schools and colleges, leisure centres and gyms, clinics and care homes, along with staff kitchens and tea points. The products and the method are chosen for how heavily each space is used. We work on accessible toilets and changing rooms, IPS panels and cubicles and vanity units and basins, and the failures we are asked to look at most are kitchen worktop joints that can’t be kept clean and failed joints along IPS and cubicle panels. Most enquiries from Whiteley 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 places like Whiteley, 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.

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.

The Mastic Doctor team standing beside their branded vans outside an office building
Where
Whiteley (PO15)
Wider area
Hampshire
Guarantee
A 12-month guarantee
Quotes
A fixed quote before we start
Call
01277 525 020
Page updated
3 November 2026

When it isn’t the sealant

Sealant solves a lot, but not everything, and we’re upfront when that’s the case. These need a different solution:

  • Water from plumbing, not from a joint
  • Loose panels, vanity units or tiles, which need fixing first
  • Panel boards already damaged by water

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

Joints and surfaces we work on

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

Maintenance after handover

Your facilities or cleaning team can help the joints last. Share these points with them:

  • Make sure washroom ventilation is running
  • Respect the cure time before reopening each room
  • Note failing joints building by building
  • Avoid scourers and harsh descalers on silicone

Include sealant joints in your planned maintenance checks. Check for mould spots, splits, lifting edges and open joints at trays, basins and urinals and log what you find.

In food areas, cleanability is something environmental health officers look at. Failed sealant around sinks and worktops is easy to put right in good time.

Site staff or a sealant specialist?

Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

Redoing a failed joint typically costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. That’s why many clients bring in a specialist from the beginning.

Busy facilities in and around Whiteley

The area within 2 miles of Whiteley holds several hotels. Behind every hotel door there’s a bathroom whose sealant will need renewing sooner or later. Rooms are done in turn so most stay available. At about 66 miles from central London, Whiteley is within reach of the capital. Washrooms in commuter-belt offices take constant weekday traffic, so we phase work to keep some facilities open.

On a healthcare site such as Fareham Community Hospital, 1.4 miles to the south-west of Whiteley, washroom work starts with the infection-control team’s sign-off. Hotels such as Solent Hotel and Spa (to the south-east of Whiteley) have en suite bathrooms where tired silicone at the bath, tray and basin is replaced room by room.

Whiteley is about 3 miles south-east of Hedge End, in Hampshire. If you’re looking for washroom sealing in Whiteley, we can help, as we do across Hampshire. We work across 723 places in Hampshire, from busy centres to rural villages. Our Southampton page has more on work in that area, about 6 miles away.

If you need washroom sealing in PO15, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. If your site is on Oak Coppice Road, Thyme Avenue and Christie Avenue or close by, send details and we will quote for washrooms and wet areas. If your building is just outside Whiteley, we cover Burridge (1 mile north-west), Park Gate (1 mile south-west), Segensworth (1 mile south), Sarisbury (1 mile south-west) and Swanwick (1 mile west). Nearby towns on our patch include Winchester (12 miles north), Gosport (7 miles south-east), Havant (12 miles east), Eastleigh (7 miles north-west), Fareham (3 miles south-east) and Horndean (11 miles east).

Landmarks near Whiteley

Around Whiteley, our work takes us to commercial buildings near Brookfield Community School and Language College. The closest station to Whiteley is Swanwick station, about 0.8 miles south-west of the centre. Other landmarks nearby include St Andrew's Castle (3.5 miles south-west) and Fareham Community Hospital (1.4 miles south-west). Green spaces nearby include Swanwick Lakes.

Map of Whiteley © OpenStreetMap contributors

Whiteley: questions and answers

Will our hotel in Whiteley need to close for the work?

Almost never. The work is phased so most rooms stay available. Housekeeping and our team agree each day’s rooms.

Is hospital work, at somewhere like Fareham Community Hospital, something you do?

Yes. We work in healthcare settings as well as offices and schools. Each area is agreed with the ward or department and the estates team in advance.

Which silicone is right for commercial washrooms?

An anti-mould sanitary silicone for most washroom joints. Neutral-cure grades are used where acetoxy types could mark metals, stone or mirror backings.

Do you have public liability insurance?

Yes. We are fully insured, and the certificate can go with your quote.

Can you clean the mould off instead of resealing?

Not for long. The mould is inside the silicone, so it comes back however often it’s cleaned. Replacement is the lasting fix.

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.

Can one quote cover more than one building?

Yes. Several buildings can share a single quote, with one point of contact.

From enquiry to sign-off

A typical day starts with protection: masking tape along the joint edges and sheeting over anything nearby. On site, the work normally takes a morning or so for a small washroom, longer where showers and changing rooms are included, and we clear our waste as we work. For a site in Whiteley, we plan so the whole job is done in one go where possible. Clear photos and measurements help us bring the right products.

  1. Every room is surveyed and the failed joints listed.
  2. You get a fixed quote with the phasing plan.
  3. Old sealant is removed completely and the faces cleaned.
  4. Each joint is cleaned and left dry.
  5. A sanitary silicone bead is laid and given a smooth tooled finish.
  6. Each area is handed back when ready.

What we need from you

  • Clear stock, furniture or equipment away from the joints
  • Tell us which areas need to stay in use
  • Send asbestos survey details if the building is pre-2000

Get a fixed quote

Send us photographs, drawings or a joint schedule are often enough for a fixed quote. If the job needs a look first, we will arrange a site visit.

Get a price

Advice

Leave it or put it right?

Sealing on top of old silicone saves nothing. It doesn’t bond, so it peels and traps dirt behind it. Full removal and proper cleaning is what makes the new joint last. Sealant hardens, cracks and loses grip with age, UV and movement. Renewing it in good time keeps the building weathertight.

Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.

What you get with us

  • Sealing commercial buildings since 2005
  • Constructionline member
  • A fixed quote before work starts
  • Colours confirmed for the specified product

Read how commercial sealant jobs are priced or our accreditations.

Accreditations

Trusted. Accredited. Insured.