Commercial washroom and wet-area sealing in Southwick, Hampshire
Our CSCS-carded applicators take on sealing in commercial washrooms, showers, kitchens and wet areas in Southwick. Send details for a fixed quote.
- Sealant stained black around basins and showers
- Users noticing mouldy joints
- Urinal joints that look unhygienic
Washroom sealing for Southwick sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Washroom sealing in Southwick, done properly
For clinics, hospitals and care homes, sealed joints matter for infection control as much as appearance. We work to your organisation’s estates and infection-control requirements and any site permits. Tell us what records you need and we’ll confirm with the quote. We work on kitchens and tea points, accessible toilets and changing rooms and urinals and WCs, and the usual reasons a site gets in touch are open joints at the base of cubicle panels and sealant lifting along a tray edge. Searching for sealant specialists in Southwick? Mastic Doctor has worked for contractors, FMs and building owners since 2005, CHAS accredited and a Constructionline member.
Community buildings around smaller places like Southwick have kitchens and toilets used by many people. Fresh anti-mould sanitary silicone at sinks, worktops and toilets keeps them cleanable.
The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.
- Place
- Southwick (PO17)
- Region
- Hampshire
- Cover
- 12 months on every job
- Price
- Quoted before any work starts
- Call
- 01277 525 020
- Last updated
- 3 November 2026
How a job runs
Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, the manufacturer’s primer is applied where it’s called for, and the sealant is tooled off neatly. If others near Southwick need work, visits can be combined. You will have a fixed quote before work starts.
- We agree which washrooms close and when.
- Leaks, loose panels or damp are pointed out first.
- Old sealant is stripped and the faces prepared.
- The right sanitary or food-safe sealant is applied.
- We confirm reopening times for each washroom.
What we need from you
- Let us know about inductions and permits
- Move anything stored against the joints
- Arrange parking or a loading space
Getting a fixed quote
Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price the work to it. For smaller jobs, photographs and a description will do.
Related advice
What happens if it’s left?
Cleaning mouldy sealant only masks it, but the mould is rooted in the silicone and comes back. A full reseal deals with it and cleaners stop fighting a losing battle. Older rural buildings around Southwick move with the seasons, and rigid or tired sealant can’t keep up. The right product, sized to the joint, copes much better.
Every site prices differently: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.
What you get with us
- One phone line for London, the South East and Scotland
- Joints cleaned back to sound surfaces
- Colour options checked against the specified product
- Colours chosen to suit frames, cladding or finishes where possible
See how commercial sealant jobs are priced or our accreditations and insurance.
Work for main contractors and building owners
We work for building owners and managing agents on everything from one building to a spread of sites around Southwick. One quote can cover more than one site, so there’s one set of paperwork to deal with.
As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.
Common problems we fix in Southwick
Cubicle panels, IPS panels and vanity units flex when people lean on them or doors are slammed, and shower trays shift under foot. If the joint wasn’t laid to take that movement, it tears or peels away.
Site and facilities staff are often the first to spot these:
- Complaints from staff, guests or users about tired washrooms
- Split or peeling sealant at shower trays
- Kitchen worktop joints that can’t be kept clean
- Failed sealant behind washroom basins
Pupil toilets at schools like King Richard School take heavy daily use, and the holidays give the window to reseal.
Comparing quotes
- How they’ll work around occupants
- How long is the guarantee, and what does it include?
- Will failed sealant be removed rather than covered?
- How the joint faces will be prepared and primed
Washroom sealing around Southwick: how the place shapes the job
Southwick sits close to the coast, within about 2 miles, and coastal places often have hotels, guest houses and holiday accommodation with busy seasons. Showers and en suites in constant use are where silicone moulds and splits first, so we plan the work for quieter weeks where possible. At about 62 miles from central London, Southwick 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.
For a hall at a building such as Church of St James Without the Priory Gate, resealing the kitchen and toilets can be fitted between bookings. Staff changing rooms and patient toilets at places like Queen Alexandra Hospital (2.5 miles south-east of Southwick) need cleanable, sound silicone.
Southwick is about 3 miles west of Purbrook, in Hampshire. Our applicators travel to Southwick for work on washrooms and wet areas. 723 places across Hampshire fall within our area, Southwick among them.
Postcode districts covered here: PO17. If your site is on High Street, North Road West and Castle Road or close by, we can quote for washrooms and wet areas. Close to Southwick, our area also takes in Boarhunt (1 mile west), North Boarhunt (2 miles north-west), Portchester (2 miles south), Hundred Acres (3 miles north-west) and North Fareham (3 miles west). Bigger towns within reach include Gosport (5 miles south), Havant (5 miles east), Eastleigh (12 miles north-west), Fareham (4 miles west), Horndean (5 miles north-east) and Chandler's Ford (14 miles north-west).
Around Southwick
Recent enquiries here include premises near Red Lion Inn, among other places. The nearest railway station is Portchester station, roughly 1.9 miles south. Other landmarks nearby include Portchester Castle (2.6 miles south) and Fareham Shopping Centre (3.2 miles south-west). Not far away are Portsdown Hill and St Clair's Meadow.
Also near Southwick
What else we do in Southwick
What sets the cost
We price every job individually. The things that drive the figure:
- How accessible the joints are
- Whether old sealant has to be cut out first
- Phasing around occupants
- The product specified
The product called for affects the cost, and so does the preparation, from cutting out to priming and backing rod. Access, phasing and site rules also count.
What we need to price the job
Whether it’s one area or a whole building, these details speed things up:
- The site address and postcode
- What the building is and how it’s used
- Anything awkward about access or site hours
- When you need the work done
Pricing a project or setting a maintenance budget? We will quote against your scope and drawings that you can work with. If you have questions first, call 01277 525 020 or use the quote form.
Should maintenance staff do it?
Certain joints really need a specialist: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.
General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.
Questions about Southwick
Is Southwick too far out for you?
Not at all: smaller places are covered as well as towns. Our area covers London and the South East counties. Good photographs up front let us bring everything on the first visit.
Will the toilets in our Southwick building be out of use?
Usually only some of them, for a short time. We work in phases so other facilities stay open. Sanitary silicone needs time to cure before the area is used, and we will tell you how long for the product used.
How do I request a quote?
There are four steps: send details, get a quote, we seal, guaranteed. Step one needs little more than photos and a postcode.
How long do sealant joints last?
There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Treat them as maintenance items and inspect them regularly.
How do you choose the sealant?
If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
What if there’s asbestos in the old mastic?
Some older mastics, especially in pre-2000 buildings, can contain asbestos. We check the asbestos register before cutting out old sealant in an older building, and if asbestos is suspected, work stops until it’s tested. We don’t remove asbestos-containing materials.
Do you work to architects’ specifications?
Yes. Send it with your enquiry, and the quote will be based on it, flagging anything that needs clarifying.