
Commercial washroom and wet-area sealing in Selborne, Hampshire
Planning work on a washroom in Selborne? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Split or peeling sealant at shower trays
- Kitchen worktop joints that can’t be kept clean
- Black mould inside silicone joints that cleaning can’t shift
Washroom sealing near Selborne
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
How the job changes by surface
Urinals and WC pans
The joint between a pan and the floor is easy to overlook. We include them in the survey.
Changing rooms and gyms
Changing rooms in gyms and leisure centres stay wet and warm so sealant there works very hard. We use anti-mould sanitary silicone throughout.
Washroom sealing in Selborne, done properly
From one staff toilet in Selborne to washrooms across a whole estate, the route is the same: details first, then a fixed quote, then the work, then the 12-month guarantee. Photos and a rough count of basins, urinals, showers and cubicles help us give a quick quote, or we can arrange a visit. If you’re dealing with mould spotting along silicone joints and sealant lifting along a tray edge, we can put it right. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in Selborne it comes down to the same thing: the right product in a properly prepared joint.
In and around smaller places like Selborne, washroom work is often in halls, pubs, primary schools, care homes and holiday accommodation. Sealant that has gone black with mould typically can’t be cleaned, so it is cut out and replaced.
A 12-month guarantee applies to all our work in Hampshire. Should something we installed fail, give us a call on 01277 525 020 or send photos by email and we will come back to it.

- Place
- Selborne (GU34)
- Wider area
- Hampshire
- Guarantee
- 12 months on our workmanship
- Quote
- A fixed quote before we start
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Leave it or put it right?
Leaving the job until a shutdown often means living with it for months. With phasing, the work can go ahead while most facilities stay open. Around Selborne, it’s better to renew all the failing joints at once. Photos of every joint help us quote for the whole job.
The specified product makes a difference, and so does the preparation. Access, phasing and site rules also count.
Why choose Mastic Doctor in Selborne
- A Constructionline member, so easy to vet
- Fully insured
- CSCS-carded applicators
- A range of standard colours, depending on the product
Read our cost guide or our accreditations.
When to bring in a specialist
Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
Wet areas in Selborne’s workplaces
At about 46 miles from central London, Selborne is within reach of the capital, within the office belt around the capital. Office toilets in the commuter belt are in use from first arrivals to last departures, so we phase work to keep some facilities open.
On a healthcare site such as Alton Community Hospital, which lies north-west of Selborne, washroom work starts with the infection-control team’s sign-off. Where you’re responsible for a hall attached to a building such as Church of St Mary, its kitchen and toilets need sealant that stays cleanable. On an industrial estate such as Southlands Industrial Park, which lies east of Selborne, staff toilets, showers and canteens are where sanitary sealant takes the most wear.
Selborne is about 4 miles south of Alton, in Hampshire. Our applicators travel to Selborne for work on washrooms and wet areas. We work across 723 places in Hampshire, large and small. We also cover Portsmouth, around 21 miles from Selborne.
We cover the GU34 postcode districts for washrooms and wet areas. Among the streets we cover are Huckers Lane, Ganders Close and Selborne Road, and sites on any of them can send details for a fixed quote. We also cover Newton Valence (1 mile west), Empshott (2 miles south-east), Lower Green (3 miles south), Hawkley (3 miles south) and Oakshott (4 miles south) for washrooms and wet areas. A short drive away, we cover Basingstoke (13 miles north-west), Fleet (13 miles north), Horndean (14 miles south), Aldershot (13 miles north-east), Alton (4 miles north) and Waterlooville (15 miles south).
Near you in Selborne
Recent enquiries here include premises near The Jubilee Tap and the streets around them. The closest station to Selborne is Alton station, about 3.8 miles north. Other landmarks nearby include The Romany Museum (less than half a mile south-east) and Alton Community Hospital (3.5 miles north-west). Green spaces nearby include Selborne Hill and Deadwater Valley.
From enquiry to sign-off
At the end of each section, we remove the tape, clean down and inspect every joint. Where the sealant needs time to cure before use, we tell you and sign the area. If others near Selborne need work, visits can be combined. A fixed quote is given before anything starts.
- We survey each room, count the joints and note anything behind them that needs another trade.
- The phasing is agreed so there are always facilities open.
- Failed silicone is removed completely and the surfaces cleaned of every trace.
- Each joint is degreased and left dry, because silicone won’t bond to damp or soapy surfaces.
- New sanitary silicone with anti-mould additives goes in and is tooled neat.
- You get a reopening time for every room, with signage left up until then.
Before we start on site
- Arrange parking or a loading space
- Move anything stored against the joints
- Tell us which areas need to stay in use
Request a quote
A handful of photos and a postcode is the fastest way to a quote. Send them through the quote form, or give us a call on 01277 525 020 or email the details over to discuss it first.
Related advice
When it isn’t the sealant
Our job is the joint, not everything around it. Sealant alone won’t deal with:
- Mould caused by poor ventilation, which will return until the extract is fixed
- Hollow tiles or loose panels behind the joint
- Water escaping beneath the floor rather than through a joint
If in doubt, ring 01277 525 020 or email drawings and photos and we will say what we think before you book.
What we seal
- Urinals and WCs
- Kitchens and tea points
- Vanity units and basins
- Showers, trays and wet room floors
- Accessible toilets and changing rooms
- IPS panels and cubicles
Also near Selborne
Other services in Selborne
Maintenance after handover
Problems stay small when the joints are checked regularly. Specifically:
- Keep a record of which washrooms need attention
- Clean sealant with gentle products and a soft cloth
- Inspect washroom sealant regularly
- Respect the cure time before reopening each room
We hand each area back once the silicone has had the cure time the product needs. We’ll tell you when the wet areas can be used, and it helps if signs stay up until then.
Inspectors look at whether kitchen surfaces can be kept clean. Failed sealant around sinks and worktops is easy to put right in good time.
Selborne: questions and answers
Would you work within a site like Alton Community Hospital?
Yes. Healthcare sites are among the places we work. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
Is a smaller place like Selborne outside your area?
No. Small places get the same service as large ones. We work across Greater London and the South East. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.
Do you phase washroom resealing?
The work is phased so there are always facilities open. We work through the building a room or section at a time. Tell us your site hours and access windows and we’ll plan around them.
How do you deal with asbestos in old sealant?
Managing asbestos is the dutyholder’s responsibility, so for older buildings we ask for the asbestos register first. Work pauses if suspect material is found, until it has been tested.
What sealant do you use in washrooms?
An anti-mould sanitary silicone in the majority of cases. We use neutral-cure versions on stone, some metals and near mirrors.
Will you come and look before quoting?
Many jobs can be quoted from photos, drawings or a joint schedule. Where they aren’t, we arrange a site visit.
Are you CHAS accredited and on Constructionline?
Yes. We’re CHAS accredited, we’re a Constructionline member and we use CSCS-carded applicators.