
Bishop's Waltham washroom sealing
Washroom sealing in Bishop's Waltham, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.
- A new bead over an old one coming away
- Users noticing mouldy joints
- Gaps where vanity tops meet the wall
Washroom sealing for businesses in Bishop's Waltham
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Washroom sealing for commercial buildings in Bishop's Waltham
You can’t shut every toilet in an office, school or hotel at once. We phase the work one washroom, one bank of cubicles or one changing room at a time, so staff, guests or pupils always have somewhere to go. Tell us your site hours and access windows and we will plan around them. We work on urinals and WCs, vanity units and basins and IPS panels and cubicles, and what we are called in for most is users noticing mouldy joints and resealing that didn’t last because the old bead stayed. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Bishop's Waltham is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.
A place of Bishop's Waltham’s size will typically have a few buildings with commercial washrooms: a school, a surgery, a pub or café, perhaps a care home. However small, each needs the old sealant removed completely and anti-mould sanitary silicone applied to clean, dry joints.
We stand by our work: 12 months, guaranteed. It covers how we prepared and applied the sealant, and if something we did falls short, we return to it.

- Where
- Bishop's Waltham (SO32)
- Wider area
- Hampshire
- Cover
- 12 months on our workmanship
- Price
- Quoted before any work starts
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
Diagnose, treat, sign off
When we get to site, we report to your site contact and complete whatever induction the building runs. Floors, finishes and fittings next to the joints are covered before any cutting starts, with the work itself usually taking a few hours for one toilet block, with bigger buildings phased across a number of visits. Work in places the size of Bishop's Waltham is planned as a single visit where we can. Clear photos and measurements help us bring the right products.
- Every washroom is checked joint by joint, with loose panels, leaks or damp noted for the right trade.
- A phasing plan keeps part of the building’s facilities in use at all times.
- Failed silicone is removed completely and the surfaces cleaned of every trace.
- Joints are cleaned, degreased and dried before sealing.
- New sanitary silicone with anti-mould additives goes in and is tooled neat.
- Rooms reopen after the product’s cure time, and we move to the next.
Preparing the site
- Share the asbestos register for older buildings
- Arrange parking or a loading space
- Have the specification and drawings to hand
Quotes
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote you can plan around. For a chat about it beforehand, ring 01277 525 020 or send details through our quote form.
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Also near Bishop's Waltham
What else we do in Bishop's Waltham
What sets the cost
We price every job individually. The things that drive the figure:
- The total length or number of joints
- Backing rod, priming and other preparation
- Specialist products, such as fire-rated or hygienic sealants
- Location, for remote and island sites
Every site prices differently: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.
Before you send an enquiry
We can often quote from photographs and a few details. It helps to include:
- Whether an asbestos survey exists
- Drawings or a marked-up plan, if available
- The product your specification calls for
- Clear photographs of the problem areas
Let us know the site, the scope and your timescale, and a fixed quote will follow. To get it moving, ring 01277 525 020 or send photos by email.
General trades versus a specialist
The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.
Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and we’ll confirm the paperwork you need with the quote.
What the job involves on each surface
Wet-room floors and floor-to-wall joints
Sealant at a wet-room floor edge is not a substitute for the waterproofing underneath, and we will say if the trouble looks to be beneath the floor.
Changing rooms and gyms
Shower areas, wet floor edges and vanity areas all have sealant joints and we look at them as one job.
Why act early in Bishop's Waltham
A failed joint behind a basin or along a shower tray lets water run where it shouldn’t. That can lead to swollen boards, marked ceilings below and lingering smells which costs more to fix than a reseal. Small buildings around Bishop's Waltham suffer from failed joints as much as large ones. Early resealing avoids the damage that follows a leak.
Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Tell us how the joints are reached and call for a quote.
Why choose Mastic Doctor in Bishop's Waltham
- Joints cleaned back to sound surfaces
- Public liability insurance in place
- Commercial sealant work since 2005
- Colour options checked against the specified product
Take a look at what affects the cost or how we’re accredited.
Questions about Bishop's Waltham
Can you work on a hospital site such as Moorgreen Hospital?
Yes, hospitals are one of the sectors we cover. Each area is agreed with the ward or department and the estates team in advance.
Is Bishop's Waltham too small for you to travel to?
No. Small places get the same service as large ones. London and every South East county are within our area. Good photos up front let us bring everything on the first visit.
Will your applicators have CSCS cards?
Yes. Should the site need card details in advance, let us know and we will send them with the quote.
Can you send site paperwork?
Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm them with the quote.
Do you use special sealant for toilets and showers?
Each area gets the grade that suits it. Washrooms and showers take anti-mould sanitary silicone, and food areas take a hygienic, food-safe sealant where food contact is possible.
Can you handle several sites?
Yes. Multi-site work and planned programmes are a core part of the service, with each site phased to suit its occupants.
Do you need to see the site first?
It depends on the job. Straightforward work can often be priced from photos and measurements, and bigger or more complex jobs typically get a visit.
What sealant work can’t fix
A proper diagnosis includes knowing what sealant can’t do. You’ll hear from us if the cause turns out to be any of the following:
- Vanity carcasses that have swollen
- A dripping waste or valve behind a panel
- Condensation from failed extract fans
If in doubt, speak to us on 01277 525 020 or email us and we’ll say what we think before you book.
Joints and surfaces we work on
- Showers, trays and wet room floors
- Kitchens and tea points
- IPS panels and cubicles
- Vanity units and basins
- Urinals and WCs
- Accessible toilets and changing rooms
Wet areas in Bishop's Waltham’s workplaces
Bishop's Waltham is about 61 miles from central London. Business park offices have washrooms in daily use by staff, which is why the work is phased.
For a school such as Bishop's Waltham Junior School, washroom and kitchen sealant can be renewed around term dates. Office toilets at parks like Swanmore Business Park, 1.2 miles south-east of Bishop's Waltham, take steady weekday use, and mouldy silicone soon shows. Healthcare washrooms on sites such as Moorgreen Hospital (to the west of Bishop's Waltham) are resealed area by area, under the site’s own infection-control rules.
Bishop's Waltham is about 5 miles north-east of Hedge End, in Hampshire. Our applicators travel to Bishop's Waltham for work on washrooms and wet areas. We work across 723 places in Hampshire. We also cover Southampton, some 8 miles away.
We take on washrooms and wet areas across the SO32 postcode area, whatever the building. Buildings on High Street, St Georges's Square and Station Road are within our area for washrooms and wet areas. Access to Bishop's Waltham is via the B2177 and B3035, so getting applicators and materials to site is simple. Sites close to Bishop's Waltham are covered too, including Ashton (1 mile north), Waltham Chase (2 miles south), Durley Street (2 miles west), Wintershill (2 miles west) and Upham (2 miles north-west). Bigger towns within reach include Winchester (8 miles north-west), Gosport (11 miles south), Havant (12 miles south-east), Eastleigh (6 miles west), Fareham (7 miles south) and Horndean (9 miles east).
Around Bishop's Waltham
In Bishop's Waltham, that means premises near Swanmore College of Technology and The Crown Hotel. For rail, the closest station is Botley station, roughly 3.3 miles south-west. Well-known places in the area include Bishop's Waltham Museum (under half a mile south-west) and Moorgreen Hospital (5.1 miles west). Green spaces nearby include Bishops Waltham Branch LNR and Beacon Hill.