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

Washroom Sealing contractors in Up Somborne

Sealing in commercial washrooms, showers, kitchens and wet areas in Up Somborne and across Hampshire. CHAS accredited and fully insured, with a 12-month guarantee.

  • Resealing that didn’t last because the old bead stayed
  • Failed sealant in a tea point or staff kitchen
  • Open joints at the base of cubicle panels
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
Constructionline member
£5m public liability

Washroom sealing for businesses in Up Somborne

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

Why deal with it now?

A tired washroom says a lot about how a building is run. Visitors notice black sealant even when the room is otherwise spotless. Resealing is a modest task with a very visible payoff. One visit to deal with every failing joint makes more sense than several trips to a place like Up Somborne, rather than one at a time. Photos of every joint help us quote for the whole job.

Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits.

What you get with us

  • Fully insured
  • One contact handling all your sites
  • 12 months’ guarantee on every job
  • Constructionline member

See what affects the cost and our accreditations.

Washroom sealing in Up Somborne

In healthcare and care settings, sealing is part of keeping surfaces cleanable. We work to your organisation’s estates and infection-control requirements and any site permits. Any records you need are confirmed with the quote. Site teams most often ask us about split or peeling sealant at shower trays and stained or open joints at kitchen sinks and worktops, on IPS panels and cubicles, kitchens and tea points and accessible toilets and changing rooms. Facilities teams, main contractors and managing agents in Up Somborne tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

Community buildings around smaller places like Up Somborne have kitchens and toilets used by many people. Resealing sinks, worktops and WCs with anti-mould silicone keeps them clean and watertight.

Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and the quote explains what it covers.

Location
Up Somborne (SO20)
Region
Hampshire
Cover
A 12-month guarantee
Quote
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

On site: what to expect

The first thing on site is a walk round with your contact, to confirm the scope, the order of work and any areas we must keep clear. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. Smaller jobs around Up Somborne can be grouped with others nearby, which keeps travel down. You will have a fixed quote before work starts.

  1. Every washroom is checked joint by joint, with loose panels, leaks or damp noted for the right trade.
  2. We agree which rooms close and when, so users always have somewhere to go.
  3. Failed silicone is removed completely and the surfaces cleaned of every trace.
  4. Each joint is degreased and left dry, because silicone won’t bond to damp or soapy surfaces.
  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.

Before we start on site

  • Tell us which areas need to stay in use
  • Send your site hours and access windows
  • Send asbestos survey details if the building is pre-2000

Ask for a quote

The quickest route to a quote is a few photographs and the site postcode. Send them through the quote form, or give us a call on 01277 525 020 or use the quote form to discuss it first.

Get a quick quote

Related advice

Busy facilities in and around Up Somborne

At about 64 miles from central London, Up Somborne is within reach of the capital. Office toilets in the commuter belt are in use from first arrivals to last departures, which is why the work is phased.

Halls linked to places like All Saints Church host groups all week, which is hard on kitchen and toilet sealant. On a healthcare site such as Royal Hampshire County Hospital, 4.9 miles to the south-east of Up Somborne, washroom work starts with the infection-control team’s sign-off.

Up Somborne is about 5 miles north-west of Winchester, in Hampshire. Up Somborne sits inside our coverage, with the same fixed quotes and 12-month guarantee as everywhere else. 723 places across Hampshire fall within our area, Up Somborne among them. There’s a separate page for Southampton, about 12 miles away.

Postcode districts covered here: SO20 for washrooms and wet areas. Streets here include Court Lane and Up Somborne Lane, and sites on any of them can send details for a fixed quote. Sites close to Up Somborne are covered too, including Little Somborne (1 mile west), Ashley (1 mile south-west), King's Somborne (2 miles south-west), Lower Slackstead (4 miles south) and Braishfield (5 miles south). Further afield, our area takes in Winchester (5 miles south-east), Eastleigh (9 miles south-east), Andover (9 miles north), Totton (12 miles south), Chandler's Ford (8 miles south) and Hedge End (13 miles south-east).

Near you in Up Somborne

Nearby you’ll also find Royal Hampshire County Hospital (4.9 miles south-east).

Map of Up Somborne © OpenStreetMap contributors

Surface by surface

Basins and vanity tops

Vanity tops and basins are splashed all day, so the wall joint and bowl surrounds tend to fail before anything else. They are resealed with anti-mould sanitary silicone.

Kitchens and tea points

We plan kitchen sealing around when the kitchen is in use. Tell us your site hours and access windows and we’ll plan around them.

When something else is needed

Part of a good diagnosis is knowing where sealant stops. We will tell you if the real problem is any of the following:

  • A room that stays damp because ventilation isn’t working
  • Fittings that move too much to hold a bead
  • Swollen or delaminated boards behind panels or vanity tops

If you are not sure, just ring 01277 525 020 or email a schedule or drawings and we’ll give you a straight answer.

Surfaces we seal

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

Keeping the joints sound

Sealant joints are maintenance items, and their life depends on movement, exposure, cleaning and use. Our advice:

  • Don’t leave trays and floors sitting wet
  • Keep washrooms out of use until we say the sealant has cured
  • Report faulty extraction promptly
  • Share your site rules when you send details

Include sealant joints in your planned maintenance checks. Look for black spotting, cracks, peeling edges and gaps at the busiest fittings and photograph anything new.

Small numbers of failed joints are quick to phase in. Left until every washroom is affected, it becomes a bigger programme with more phasing to plan.

Common problems we fix in Up Somborne

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

Most enquiries start with something like this:

  • Complaints from staff, guests or users about tired washrooms
  • Panel joints letting water behind
  • Mould spotting along silicone joints
  • Resealing that didn’t last because the old bead stayed

Office washrooms on sites such as Balldown Business Centre (2.2 miles east of Up Somborne) are in use all working day, so resealing is phased to keep some open.

Comparing quotes

  • Can the work be phased to keep areas open?
  • How joint depth will be controlled
  • Proof of insurance
  • Health and safety accreditation such as CHAS

Our contractor checklist

Your questions answered

Is Up Somborne off your patch?

No. Small places get the same service as large ones. We cover Greater London and the counties of the South East. Send photos and a list of what needs doing, and we’ll plan the job to need as few trips as possible.

Could you schedule work at a campus like University of Winchester for the vacation?

Yes. We plan campus work around teaching, exams and residence turnarounds. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.

What’s the quickest route to a quote?

It works in four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. Step one needs little more than photos and a postcode.

What happens if old sealant might contain asbestos?

Managing asbestos is the dutyholder’s responsibility, so we’ll ask for the register before work on an older building. Work pauses if suspect material is found, until it has been tested.

Does weather matter for sealant work?

It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so we watch the forecast and rearrange outside work if we have to. Indoors, the weather is rarely a problem.

Is any job too small?

We quote for single jobs as well as large packages and programmes. Photos and a description are enough to start.

Can you reseal washrooms in healthcare buildings?

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

Accreditations

Trusted. Accredited. Insured.