Washroom Sealing in Andwell
Washroom sealing in Andwell, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.
- Split or peeling sealant at shower trays
- Failed sealant behind washroom basins
- Users noticing mouldy joints
Washroom sealing for Andwell sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
How we handle washroom sealing in Andwell
When mould has spotted a silicone joint, more cleaning won’t remove it. The mould has rooted into the silicone itself, which is why it comes back however often it is treated. Replacing the bead is the lasting treatment. Site teams most often ask us about split or peeling sealant at shower trays and failed sealant behind washroom basins, on showers, trays and wet room floors, IPS panels and cubicles and kitchens and tea points. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Andwell is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.
In and around smaller places like Andwell, washroom work is often in halls, pubs, primary schools, care homes and holiday accommodation. Sealant that has gone black with mould normally can’t be cleaned, so it is cut out and replaced.
We stand behind the joints we seal with a 12-month guarantee. That covers our preparation and application, and we come back if anything isn’t right.
- Where
- Andwell (RG25, RG27, RG24)
- Wider area
- Hampshire
- Cover
- A 12-month guarantee
- Quotes
- A fixed quote before we start
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
When to call us in Andwell
Panels and vanity units move slightly in use and trays shift slightly with each user. If the joint wasn’t laid to take that movement, it tears or peels away.
What tends to prompt an enquiry:
- Open joints along basins and vanity units
- Shower tray joints that have opened up
- Users noticing mouldy joints
- Resealing that didn’t last because the old bead stayed
Church halls and community buildings, such as those at St Swithun's church, have kitchens and toilets used by many groups, and their sanitary sealant works hard.
Before you book anyone
- Their pre-qualification and accreditations
- Is the sealant right for the movement and the substrate?
- Their approach to joint depth and backing
- Proof of insurance
Should maintenance staff do it?
Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we’ll confirm the paperwork you need with the quote.
General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class.
Maintenance after handover
A few simple habits keep the new joints working:
- Leave signs up until the cure time is over
- Report faulty extraction promptly
- Act on the first split you see at a shower tray
- Include joints in routine washroom inspections
Any failure in our workmanship within the 12-month guarantee is ours to put right. Beyond that, regular checks keep small problems small.
Leaks through tray and wet-floor joints can go unseen until a ceiling marks below. At that stage, boards or ceilings may need repair so failed joints are worth acting on quickly.
How the job changes by surface
Changing rooms and gyms
Gym and leisure changing rooms see showers running most of the day, so mould is a constant battle. Anti-mould sanitary silicone is the standard choice.
Basins and vanity tops
Basin joints get wet every time someone washes their hands, so the wall joint and bowl surrounds tend to fail before anything else. They are resealed with anti-mould sanitary silicone.
Keeping Andwell washrooms open while we work
Central London is about 43 miles from Andwell. Washrooms in commuter-belt offices take constant weekday traffic, so we phase work to keep some facilities open.
For a hotel such as Basingstoke Country Hotel (1.4 miles east of Andwell), resealing en suites a few rooms at a time keeps the rest available. Units at estates like Hatch Industrial Park (to the south-west of Andwell) have welfare blocks whose showers and toilets see shift after shift.
Andwell is about 3 miles south-west of Hook, in Hampshire. Andwell sits inside our coverage, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Our Hampshire coverage takes in 723 places, large and small. Reading is covered too, around 13 miles from Andwell.
Business premises anywhere in RG25, RG27 and RG24 are within our area for washrooms and wet areas. We cover commercial and managed buildings on Greywell Road and Canal Reach. Just outside Andwell, we also work in Mapledurwell (1 mile south), Water End (1 mile north-east), Old Basing (1 mile west), Lychpit (2 miles west) and Wildmoor (2 miles north). Further afield, our area takes in Basingstoke (4 miles west), Farnborough (11 miles east), Fleet (8 miles east), Aldershot (11 miles east), Alton (8 miles south) and Yateley (9 miles north-east).
Landmarks near Andwell
The closest station to Andwell is Hook station, roughly 2.4 miles east of the centre. A little further out are Festival Place (3.1 miles west) and Basingstoke and North Hampshire Hospital (4.2 miles west). The countryside around Andwell includes Dogmersfield Lake and The Mill Field.
Nearby places to Andwell
What else we do in Andwell
Diagnose, treat, sign off
On arrival, we sign in, go through any site induction and check how permits are handled. Everything around the joints gets protected before anything is cut or cleaned, with the work itself typically taking a morning or so for a small washroom, longer where showers and changing rooms are included. For work around Andwell, we aim to finish in one visit, so photographs and measurements up front really help. Then the right materials arrive with us.
- Every room is surveyed and the failed joints listed.
- The fixed quote sets out the rooms, the products and the phasing.
- Old sealant is removed completely and the faces cleaned.
- Joints are degreased and dried.
- New anti-mould sealant goes in and is tooled neat.
- Each area is handed back when ready.
Before we start on site
- Send your site hours and access windows
- Share the asbestos register for older buildings
- Flag any permit to work we’ll need
Request a quote
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, ring 01277 525 020 or send details through our quote form.
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FAQs: Andwell
Can you work on a hospital site such as Basingstoke and North Hampshire Hospital?
Yes, hospitals are one of the sectors we cover. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
Will all the washrooms in our Andwell building be closed at once?
Normally only some of them, for a short time. We work in phases so other facilities stay open. We’ll tell you the curing time for the product before we start.
What if there’s asbestos in the old mastic?
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 work stops until any suspect material has been tested. Removing asbestos is a job for asbestos specialists, not us.
What will the job cost?
That depends on the job: quantities, access, the product and any phasing. Call for a fixed quote and we will price it properly.
Can you work to our specification?
Yes. We follow the specification, along with the manufacturer’s installation guidance, and we raise anything unclear before work begins.
Is there a guarantee on the work?
A 12-month guarantee covers the work. It applies to our workmanship, not to plumbing leaks or damp from poor ventilation.
How long before the toilets can reopen?
The silicone needs time to cure before water reaches it. We plan the phasing around that so there are always rooms open.
When it isn’t the sealant
Part of a good diagnosis is knowing where sealant stops. We’ll tell you if the real problem is one of these:
- Failed tanking beneath a wet-room floor or behind tiles
- Vanity carcasses that have swollen
- Leaking pipes, traps, wastes or cisterns, which need a plumber
If in doubt, call 01277 525 020 or send photos by email and we will say what we think before you book.
Surfaces we seal
- Kitchens and tea points
- Accessible toilets and changing rooms
- Urinals and WCs
- Vanity units and basins
- IPS panels and cubicles
- Showers, trays and wet room floors