
Washroom Sealing in Fernham
Our CSCS-carded applicators take on sealing in commercial washrooms, showers, kitchens and wet areas in Fernham and the surrounding area. Send details for a fixed quote.
- Shower tray joints that have opened up
- Gaps where vanity tops meet the wall
- Panel joints letting water behind
Washroom sealing for businesses in Fernham
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
How we handle washroom sealing in Fernham
In a busy washroom, the sealant normally gives up long before the tiles or fittings. Around basins, urinals, cubicles, IPS panels and shower trays it takes water, soap, cleaning chemicals and knocks every day, and once mould grows into it, it can’t be scrubbed out. The fix is to remove it completely and reseal with sanitary silicone containing anti-mould additives. The enquiries we see most involve sealant laid over old silicone and now peeling and open joints at the base of cubicle panels, on urinals and WCs, vanity units and basins and showers, trays and wet room floors. Searching for sealant specialists in Fernham? We have been sealing commercial buildings since 2005, CHAS accredited and a Constructionline member.
In and around smaller places like Fernham, washroom work is often in halls, pubs, primary schools, care homes and holiday accommodation. Mould gets into sealant in any washroom that doesn’t dry out, and once it’s in, the sealant is replaced.
Our workmanship is guaranteed for 12 months, wherever the site is. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Location
- Fernham (SN7)
- Region
- Oxfordshire
- Guarantee
- 12 months on our workmanship
- Quote
- Quoted before any work starts
- Telephone
- 01277 525 020
- Updated
- 3 November 2026

Looking after the joints
Problems stay small when the joints are checked regularly. Specifically:
- Keep extract fans working and vents clear
- Share your site rules when you send details
- Brief cleaning staff to treat joints gently
- Note failing joints building by building
We hand each area back once the silicone has had the cure time the product needs. You will be told when showers and basins can be used again and signage stays in place until that time.
A split joint at a shower tray can leak for a long time before anyone sees it. By then, other trades may be needed as well, so reseal when you first spot a split.
Why act early in Fernham
Leaving the job until a shutdown often means living with it for months. Phasing lets it happen now, with facilities kept in use. Converted and older buildings near places like Fernham tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.
Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Mention the access as part of your enquiry.
Why choose Mastic Doctor in Fernham
- Sealing commercial buildings since 2005
- Fully insured, including public liability cover
- A Constructionline member, so easy to vet
- Colour options checked against the specified product
Read what affects the cost and our accreditations and insurance.
How the quote is worked out
Quotes vary with the job. It mainly depends on:
- Site requirements such as inductions and permits
- Phasing around occupants
- How much there is to seal
- The product specified
The specified product makes a difference, as does the preparation each joint needs, such as cutting out, priming or new backing rod. Access, phasing and site requirements come into it too.
Before you send an enquiry
However big the job, the same details help:
- Anything awkward about access or site hours
- Clear photographs of the problem areas
- Rough lengths or quantities, or drawings if you have them
- Any specification or named product
The quickest route to a quote is a few photographs and the site postcode. Send them through the quote form, or ring 01277 525 020 or send photos by email to discuss it first.
FAQs: Fernham
Is Fernham off your patch?
Not at all: smaller places are covered as well as towns. We cover Greater London and the counties of the South East. Where we can, we group nearby jobs to make the most of each trip.
Is a hospital such as Faringdon Day Hospital somewhere you can work?
Yes. Healthcare sites are among the places we work. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
What’s the quickest route to a quote?
It works in four steps: send details, get a quote, we seal, guaranteed. The first step only needs photos and a postcode.
Are you insured?
Yes. Our insurance certificate can be sent alongside the quote.
Do you need to remove the old sealant?
The failed bead is always removed. New silicone won’t stick to the old, so sealing over it soon peels.
How soon can a washroom be used after resealing?
The silicone needs time to cure before water reaches it. We plan the phasing around that so facilities are never short.
Which sealant will you use?
The specification comes first, if there is one. Without one, the joint decides: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.
What else we do in Fernham
On site: what to expect
The first thing on site is a walk round with your contact, to confirm the scope, the order of work and any areas we must keep clear. Then we strip out anything that has failed, prepare every joint and seal it. If others near Fernham need work, visits can be combined. A fixed quote is given before anything starts.
- We start by inspecting the fittings and joints and flagging problems sealant can’t solve.
- We agree which rooms close and when, so users always have somewhere to go.
- The failed silicone is stripped and every face scraped clean of residue.
- Joints are cleaned, degreased and dried before sealing.
- 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.
Getting the site ready
- Let building users know which areas are affected
- Send your site hours and access windows
- Let us know about inductions and permits
Quotes
We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To ask for one, speak to us on 01277 525 020 or email drawings and photos.
Related advice
What the job involves on each surface
Showers and trays
If a tray moves too much or is cracked, it needs attention first, and we’ll say so before resealing.
Kitchens and tea points
Staff kitchens and tea points have joints at worktops, sinks and splashbacks. Sealed joints leave no gaps for food and dirt.
Honest limits
A proper diagnosis includes knowing what sealant can’t do. We will tell you if the real problem is any of the following:
- Vanity carcasses that have swollen
- Mould caused by poor ventilation, which will return until the extract is fixed
- Failed tanking beneath a wet-room floor or behind tiles
Not sure which it is? You can call the office on 01277 525 020 or email drawings and photos and we’ll tell you honestly.
Where we work in Fernham
- Vanity units and basins
- Kitchens and tea points
- Urinals and WCs
- IPS panels and cubicles
- Showers, trays and wet room floors
- Accessible toilets and changing rooms
Washroom sealing in Fernham: the local picture
Fernham lies roughly 64 miles out from central London. Business park offices have washrooms in daily use by staff, and resealing in phases keeps facilities available.
At a school such as Faringdon Community College, changing rooms and kitchens need cleanable joints as much as the toilets. For a site such as Faringdon Day Hospital, which lies north of Fernham, sanitary joints in clinical areas need sound, cleanable sealant and a careful method. Where you are responsible for a hall attached to a building such as Church of St John, its kitchen and toilets need sealant that stays cleanable.
Fernham is about 7 miles west of Wantage, in Oxfordshire. Across the SN7 postcode area, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Our Oxfordshire coverage takes in 423 places, large and small. We also cover Oxford, around 17 miles from Fernham.
Business premises anywhere in SN7 are within our area for washrooms and wet areas. Among the streets we cover are High Street, Church Lane and The Green, and sites on any of them can send details for a fixed quote. Close to Fernham, our area also takes in Little Coxwell (1 mile north-west), Baulking (2 miles south-east), Uffington (2 miles south-east), Shellingford (2 miles north-east) and Faringdon (2 miles north). A short drive away, we cover Didcot (14 miles east), Abingdon-on-Thames (13 miles east), Witney (12 miles north), Carterton (10 miles north), Wantage (7 miles east) and Grove (7 miles east).
Around Fernham
Nearby you will also find Faringdon Castle (2.4 miles north) and Uffington Museum (1.8 miles south). Not far away are Badbury Hill.