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

Commercial washroom and wet-area sealing in High Cross, Hampshire

Looking for washroom sealing in High Cross? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.

  • Sealant laid over old silicone and now peeling
  • Urinal joints that look unhygienic
  • Open joints along basins and vanity units
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
Constructionline member
£5m public liability

Washroom sealing across High Cross

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

When it isn’t the sealant

Before quoting, we check that sealant is the right answer. It won’t put right:

  • Vanity carcasses that have swollen
  • Water from plumbing, not from a joint
  • Failed tanking beneath a wet-room floor or behind tiles

If you’re not sure, just ring 01277 525 020 or send photos by email and we will give you a straight answer.

What we seal

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

About our washroom sealing in High Cross

For clinics, hospitals and care homes, sealed joints matter for infection control as much as appearance. Your estates and infection-control requirements, and any permits the site uses, shape how we work. Any records you need are confirmed with the quote. If you have open joints along basins and vanity units and mould spotting along silicone joints, we can put it right, on IPS panels and cubicles, showers, trays and wet room floors and vanity units and basins alike. Whether you call it commercial sealant work, mastic application or joint sealing, the work in High Cross is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Halls and community buildings near places like High Cross are used by different groups through the week, and their toilets and kitchens show it. Fresh anti-mould sanitary silicone at sinks, worktops and toilets keeps them cleanable.

Our workmanship is guaranteed for 12 months. If our installation lets you down in that time, we return and fix it.

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
High Cross (GU32)
Region
Hampshire
Guarantee
12 months on every job
Quotes
Fixed quote, scope in writing
Telephone
01277 525 020
Last updated
3 November 2026

Toilets, showers and kitchens around High Cross

High Cross is about 50 miles from central London. Office washrooms on business parks see heavy weekday use, so we phase work to keep some facilities open.

For a school such as Froxfield Church of England Primary School, washroom and kitchen sealant can be renewed around term dates. Staff changing rooms and patient toilets at places like Petersfield Hospital (to the south-east of High Cross) need cleanable, sound silicone. Church halls and community buildings, such as those at Church of St Peter, have kitchens and toilets used by many groups, and their sanitary sealant works hard.

High Cross is about 3 miles north-west of Petersfield, in Hampshire. Across the GU32 postcode area, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. 723 places across Hampshire fall within our area, High Cross among them. Sites around Portsmouth have their own page, roughly 16 miles from High Cross.

We take on washrooms and wet areas across the GU32 postcode area. If your site is on High Cross Lane, Dellfield and Deans Dell or close by, we can quote for washrooms and wet areas. Sites close to High Cross are covered too, including Froxfield Green (1 mile south-west), Oakshott (2 miles north-east), Langrish (2 miles south), Stroud (2 miles south) and Steep (2 miles east). A short drive away, we cover Winchester (15 miles west), Havant (12 miles south), Horndean (9 miles south), Alton (8 miles north), Waterlooville (11 miles south) and Petersfield (3 miles south-east).

Around High Cross

The nearest railway station is Petersfield station, roughly 2.6 miles south-east. Nearby you will also find Petersfield Community Hospital (2.7 miles south-east) and Bear Museum (3.1 miles south-east). For a walk, there’s Wheatham Hill and Liss Riverside Railway Walk South.

Map of High Cross © OpenStreetMap contributors

Should maintenance staff do it?

Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.

Your questions answered

Is a smaller place like High Cross outside your area?

Not at all: smaller places are covered as well as towns. Our area covers London and the South East counties. We plan jobs in smaller places so return trips are kept to a minimum.

Do you take on work at healthcare sites like Petersfield Hospital?

Yes, healthcare and care buildings are part of our work. We follow the site’s permits, sign-in and infection-control procedures in every area.

Are you fully insured?

Yes. We’re fully insured, including public liability cover.

Will you quote for a small job?

Whatever the size, the process is the same: send details, get a fixed quote, we seal, guaranteed.

Will all the toilets be closed at once?

Only the area we are working in is closed. Each room reopens after the sealant’s cure time and we start the next.

How long do sealant joints last?

There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Sealant joints are maintenance items, so inspect them regularly.

How long does a typical visit take?

It depends on the scope, but the work usually takes a few hours for one toilet block, with bigger buildings phased across a number of visits. For bigger or phased jobs, we’ll set out a timescale with the quote.

What the job involves on each surface

Wet-room floors and floor-to-wall joints

We seal the visible joints; we don’t install or repair waterproofing below and point it out if water appears to rise from below.

IPS and cubicle panels

Cubicle and IPS panels move when leaned on or knocked so the bead needs to cope with it. Loose panels are flagged before any sealant goes on.

On site: what to expect

Site rules come first: sign-in, induction and whatever permit system the building uses. With the paperwork done, the joints are worked through in the order agreed with your site contact. For a building around High Cross, tell us how to find it and who will meet us. Send that with the details and we will confirm the plan with the quote.

  1. First, the phasing is agreed so facilities stay open.
  2. Anything behind the joints that needs another trade is flagged.
  3. Failed sealant and residue are stripped out.
  4. The right sanitary or food-safe sealant is applied.
  5. We confirm reopening times for each washroom.

What we need from you

  • Make sure the joints can be reached
  • Tell staff and tenants when we’ll be in
  • For older buildings, check the asbestos register before work

Request a quote

Tell us about the building, the joints and when you need the work done, and we’ll put a fixed quote together. The easiest way is to speak to us on 01277 525 020 or email drawings and photos.

Ask for a quote

Advice

Maintenance after handover

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

  • Photograph and log failed joints across the estate
  • Add sealant joints to planned maintenance checks
  • Tell us about infection-control or permit rules before we quote
  • Clear standing water from shower floors where possible

Add washroom sealant to routine inspections. Look for black spotting, cracks, peeling edges and gaps at the busiest fittings and log what you find.

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

What affects the price in High Cross

Your fixed quote is built from the real scope. It allows for:

  • Travel to remote or island sites
  • Site requirements such as inductions and permits
  • The size and state of each joint
  • How much there is to seal

The product called for affects the cost, and so does the preparation, from cutting out to priming and backing rod. Access, phasing and site requirements come into it too.

What to include in your enquiry

The more we know, the firmer the quote. When you get in touch, include:

  • Where the site is, with the postcode
  • Whether an asbestos survey exists
  • When you need the work done
  • Drawings or a marked-up plan, if available

A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Send what you have, and we’ll arrange a site visit if anything is unclear.

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