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

Hammer Bottom washroom sealing

Sealing in commercial washrooms, showers, kitchens and wet areas throughout Hammer Bottom and nearby, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Black mould inside silicone joints that cleaning can’t shift
  • Gaps where vanity tops meet the wall
  • Complaints from staff, guests or users about tired washrooms
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
Constructionline member
£5m PL insurance

Washroom sealing near Hammer Bottom

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

Washroom sealing in Hammer Bottom, done properly

Not every silicone belongs in a washroom. Sanitary grades carry anti-mould additives, and neutral-cure types are used where acetoxy silicone could attack some metals, stone or mirror backings. In food areas, hygienic or food-safe sealants are used where food contact is possible. We work on urinals and WCs, showers, trays and wet room floors and IPS panels and cubicles, and the failures we are asked to look at most are shower tray joints that have opened up and resealing that didn’t last because the old bead stayed. A specialist sealant contractor works differently from a general builder: in Hammer Bottom, that means joint design, primers and backing rod as standard.

Rural businesses near smaller places such as Hammer Bottom, from cafés to event venues, rely on washrooms and kitchens that stay clean. Tell us your opening times and quiet periods and we’ll plan around them.

We sign every job off with a 12-month guarantee. It’s a plain promise: if the work we did fails within twelve months, we return to fix it.

Where
Hammer Bottom (GU27, GU30)
Region
Hampshire
Cover
12 months on our workmanship
Quote
Quoted before any work starts
Phone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Sanitary sealant for Hammer Bottom buildings

The 2 miles around Hammer Bottom include three care or nursing homes. Assisted bathrooms and wet rooms in care settings need sanitary sealant that stays cleanable. Rooms are done a few at a time at times agreed with the home. Central London is about 41 miles from Hammer Bottom. Office washrooms on business parks see heavy weekday use, so we phase work to keep some facilities open.

Pupil toilets at schools like Woolmer Hill School take heavy daily use, and the holidays give the window to reseal. For a hall at a building such as The Parish Church of St Peter, resealing the kitchen and toilets can be fitted between bookings.

Hammer Bottom is about 9 miles south of Farnham, in Hampshire. Businesses, contractors and managing agents in Hammer Bottom can call on us for washrooms and wet areas. 723 places across Hampshire fall within our area, including Hammer Bottom. Portsmouth is covered too, some 24 miles away.

Anyone looking for washroom sealing in GU27 and GU30 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. Streets here include Hammer Vale, Sandy Lane and Hewshott Lane, and sites on any of them can send details for a fixed quote. Nearby places we also cover include Hammer (1 mile east), Woolmer Hill (1 mile south-east), Bramshott Chase (1 mile north), Linchmere (1 mile south) and Shottermill (1 mile east) for washrooms and wet areas. A short drive away, we cover Farnborough (14 miles north), Fleet (13 miles north), Aldershot (11 miles north), Alton (10 miles north-west), Petersfield (9 miles south-west) and Bordon (5 miles north-west).

Near you in Hammer Bottom

Locally, jobs take us to sites close to Camelsdale Primary School and The Prince of Wales pub, among other places. The nearest railway station is Haslemere station, about 1.9 miles east of the centre. Nearby you’ll also find Haslemere and District Hospital (2.4 miles east). Open spaces near Hammer Bottom include Wheeler's Down and Lynchmere Commons.

Map of Hammer Bottom © OpenStreetMap contributors

Surface by surface

Changing rooms and gyms

Changing rooms in gyms and leisure centres stay wet and warm, so mould is a constant battle. We use anti-mould sanitary silicone throughout.

Basins and vanity tops

A failed joint along a vanity unit lets water into the carcass. Prompt resealing keeps the unit sound.

Our process

A typical day starts with protection: tape along each joint edge and covers over finishes, stock and equipment close by. The work itself 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. If others near Hammer Bottom need work, visits can be combined. A fixed quote is given before anything starts.

  1. We survey each room, count the joints and note anything behind them that needs another trade.
  2. A phasing plan keeps part of the building’s facilities in use at all times.
  3. The failed silicone is stripped and every face scraped clean of residue.
  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. Each room is handed back once the sealant has had its cure time.

Preparing the site

  • Point out parking and an unloading spot
  • Tell us your opening times and when work is allowed
  • Have the specification and drawings to hand

Request a quote

If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price the work to it. For smaller jobs, photos and a description will do.

Ask for a quote

Read more

When something else is needed

A few problems need another trade or a different fix, and we say so rather than covering them up:

  • Vanity carcasses that have swollen
  • Leaks through tanking or membranes below the finishes
  • Fittings that move too much to hold a bead

Not sure which it is? You can phone 01277 525 020 or use the quote form and we will tell you honestly before you book.

Where we work in Hammer Bottom

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

Hammer Bottom: questions and answers

Can work in a care setting near Hammer Bottom go ahead while residents are there?

Yes. Care settings are planned area by area, at times agreed with the home. Noise and disruption are kept to a minimum.

Is Hammer Bottom too far out for you?

No. Small places get the same service as large ones. We cover Greater London and the counties of the South East. We plan jobs in smaller places so return trips are kept to a minimum.

What about RAMS and site documents?

Each site asks for different documents, so tell us what you need and we will confirm it when we quote.

What will the job cost?

Every job gets its own fixed quote. To get one, call the office on 01277 525 020 or email us.

Do you take on small jobs?

We quote for single jobs as well as large packages and programmes. Send details for a fixed quote.

Can one quote cover more than one building?

Yes. Several buildings can share a single quote, and you deal with one contact throughout across South East England, Greater London and Scotland.

Will you come and look before quoting?

Photos, drawings or a schedule are often enough to quote. If the job needs a look first, we will arrange a visit before quoting.

After the work

Once the work is signed off, these steps help:

  • Photograph and log failed joints across the estate
  • Leave signs up until the cure time is over
  • Make sure washroom ventilation is running
  • Brief cleaning staff to treat joints gently

Keep extract fans working and vents clear. A room that stays damp will grow mould on almost anything so report fans that aren’t working to your building services team.

Mould in a joint spreads along the bead and into nearby grout and users notice. Replacing it early keeps the job to a reseal.

When to call us in Hammer Bottom

Much of the failed sealant we remove was applied over old silicone or residue. New silicone won’t grip the old, so it soon lets go.

Clients usually get in touch after noticing one or more of the following:

  • Black mould inside silicone joints that cleaning can’t shift
  • Split or peeling sealant at shower trays
  • Discoloured joints around urinals and WC pans
  • Washrooms that look worn because of the sealant

For an occupier at a site such as Kings Road Industrial Estate, 1.4 miles to the east of Hammer Bottom, the canteen and welfare facilities need cleanable joints as much as any office.

What your quote should include

  • How they handle RAMS and site documents
  • What the guarantee covers, and for how long
  • Their plan for phasing and protecting the area
  • Will failed sealant be removed rather than covered?

How to choose a sealant contractor

Building owners, agents and FMs in Hammer Bottom

When you manage a building on behalf of an owner, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.

CHAS accredited and a Constructionline member, we’re straightforward to vet for your supplier list. We are fully insured, and our insurance certificate can go with the quote.

Accreditations

Trusted. Accredited. Insured.