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

Commercial washroom and wet-area sealing in Southington, Hampshire

Sealant work in Southington for main contractors, managing agents and facilities managers: sealing in commercial washrooms, showers, kitchens and wet areas, quoted at a fixed price.

  • Shower tray joints that have opened up
  • Failed sealant in a tea point or staff kitchen
  • Open joints at the base of cubicle panels
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
CHAS & Constructionline
£5m PL insurance

Need washroom sealing in Southington?

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

How we handle washroom sealing in Southington

In a commercial washroom, sealant is normally the first thing to wear out. Around basins, urinals, cubicles, IPS panels and shower trays it takes water, soap, cleaning chemicals and knocks every day and mould that roots into it can’t be cleaned away. We strip it out and lay new anti-mould sanitary silicone. If you have shower tray joints that have opened up and failed sealant in a tea point or staff kitchen, we can help, whatever the surface. One point of contact handles commercial sealant work in Southington from the first photos to the final walk-round, whether it’s one building or several.

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

Our workmanship is guaranteed for 12 months. If a joint we sealed fails because of how it was installed, we come back and put it right.

Location
Southington (RG25)
Wider area
Hampshire
Guarantee
A 12-month guarantee
Price
A fixed quote before we start
Telephone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Site staff or a sealant specialist?

Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

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.

Why act early in Southington

Gaps and mould in joints give dirt and bacteria somewhere to sit, and in kitchens, clinics and schools that is a real concern. A smooth, sealed joint can be cleaned properly. Older rural buildings around Southington move with the seasons, and rigid or tired sealant can’t keep up. A sealant with the right movement capability, correctly sized, lasts far better.

There’s no price list, because the scope varies so much from one building to the next. For a fixed figure, call for a quote and we’ll price your job on its own details.

What you get with us

  • Work carried out by CSCS-carded applicators
  • CHAS accredited
  • Sealing commercial buildings since 2005
  • Constructionline member for supplier checks

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

After the work

Regular inspection catches problems early. Specifically:

  • Share your site rules when you send details
  • Inspect washroom sealant regularly
  • Keep a record of which washrooms need attention
  • Clear standing water from shower floors where possible

Ventilation is half the battle. Constant damp lets mould take hold even on anti-mould grades so report fans that aren’t working to your building services team.

Boards behind panels and vanity tops can swell when water gets past a failed joint. Once that happens, a reseal won’t fix them.

On site: what to expect

Before we leave any area, we remove the tape, clean down and inspect every joint with your site contact. Where the sealant needs time to cure before use, we tell you and sign the area. Jobs in and around smaller places like Southington are normally planned as a single visit, so we ask for photographs and rough sizes first. Then the right materials arrive with us.

  1. We agree which washrooms close and when.
  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 give you a reopening time for every room.

Before we start on site

  • Warn occupants and staff about the work
  • Explain the parking and delivery arrangements
  • Tell us what induction or permit system the site runs

Get a fixed quote

Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we’ll return a fixed quote you can plan around. For a chat about it beforehand, speak to us on 01277 525 020 or use the quote form.

Get a price

Advice

When something else is needed

We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:

  • A room that stays damp because ventilation isn’t working
  • Loose panels, vanity units or tiles, which need fixing first
  • Swollen or delaminated boards behind panels or vanity tops

If you are not sure, just call the office on 01277 525 020 or email a schedule or drawings and we will give you a straight answer.

Surfaces we seal

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

Your questions answered

Is Southington off your patch?

No. Small places get the same service as large ones. London and every South East county are within our area. Good photographs up front let us bring everything on the first visit.

Will the toilets in our Southington building be out of use?

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.

How do you deal with asbestos in old sealant?

Asbestos is possible in some older mastics, particularly in buildings from before 2000. We check the asbestos register before cutting out old sealant in an older building, and if asbestos is suspected, work stops until it’s tested. Removing asbestos is a job for asbestos specialists, not us.

Can you reseal washrooms in healthcare buildings?

Yes. Your infection-control rules, estates requirements and permits are followed, and phase the work so areas keep facilities.

Do you phase washroom resealing?

Only the area we are working in is closed. Each room reopens after the sealant’s cure time, then we move on.

How much does the work cost?

Each job is quoted on its own details. For yours, ring 01277 525 020 or send photos by email with a description of the work.

Does the weather affect the work?

For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so damp, frosty or very cold days can stop external work. Internal work is rarely affected.

Wet areas in Southington’s workplaces

Southington is about 54 miles from central London, in a commuter belt where offices and business parks are common. Office washrooms on business parks see heavy weekday use, so we work a block of facilities at a time.

For an occupier at a site such as Ardglen Industrial Estate (3 miles west of Southington), the canteen and welfare facilities need cleanable joints as much as any office. Pupil toilets at schools like Overton Church of England Primary School take heavy daily use, and the holidays give the window to reseal. Where you’re responsible for a hall attached to a building such as Church of St Mary, its kitchen and toilets need sealant that stays cleanable.

Southington is about 8 miles west of Basingstoke, in Hampshire. Anywhere in RG25, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Southington is one of 723 places we cover in Hampshire for washrooms and wet areas. There’s a separate page for Reading, about 19 miles away.

Commercial sites across RG25 are covered for washrooms and wet areas. We cover commercial and managed buildings on Vinns Lane, London Road and Dellands Lane and the roads nearby. Sites close to Southington are covered too, including Overton (1 mile east), Quidhampton (1 mile north-east), Laverstoke (1 mile south-west), Freefolk (1 mile west) and Wells-in-the-Field (2 miles west). A short drive away, we cover Basingstoke (8 miles east), Winchester (13 miles south), Andover (9 miles west), Alton (14 miles south-east), Tadley (10 miles north-east) and Hook (14 miles east).

Local landmarks in Southington

We work on buildings around The Greyhound pub, among other places. The closest station to Southington is Overton station, about 1.1 miles north-east of the centre. The countryside around Southington includes Ladle Hill.

Map of Southington © OpenStreetMap contributors

How the job changes by surface

Healthcare and care settings

Assisted bathrooms and accessible toilets get heavy use so their sealant tends to fail sooner.

IPS and cubicle panels

A panel that has already swollen won’t be fixed by sealant and we’ll point out any we see.

Accreditations

Trusted. Accredited. Insured.