
Three Mile Cross washroom sealing
Planning work on a washroom in Three Mile Cross? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Complaints from staff, guests or users about tired washrooms
- Gaps where vanity tops meet the wall
- Discoloured joints around urinals and WC pans
Washroom sealing in Three Mile Cross
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Washroom sealing in Three Mile Cross, done properly
In a commercial washroom, sealant is typically the first thing to wear out. Basin tops, urinal backs, panel joints and shower trays put it under water, chemicals and daily cleaning and mould that roots into it can’t be cleaned away. The fix is to remove it completely and reseal with sanitary silicone containing anti-mould additives. If you have discoloured joints around urinals and WC pans and stained or open joints at kitchen sinks and worktops, we can help, whatever the surface. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Three Mile Cross is the same: the right product in a properly prepared joint.
Community buildings around smaller places like Three Mile Cross have kitchens and toilets used by many people. Fresh anti-mould sanitary silicone at sinks, worktops and toilets keeps them cleanable.
Our workmanship is guaranteed for 12 months. If our installation lets you down in that time, we return and fix it.
- Place
- Three Mile Cross (RG7)
- Region
- Wokingham
- Guarantee
- 12 months on our workmanship
- Price
- A fixed quote before we start
- Call
- 01277 525 020
- Last updated
- 3 November 2026

What sets the cost
Quotes vary with the job. It mainly depends on:
- Removal of failed or old sealant
- The size and state of each joint
- Quantities, in metres or numbers
- Site requirements such as inductions and permits
The price depends on how many linear metres there are, how much old material needs removing and how the joints are reached. Call for a quote when you are ready.
Sending details for a quote
Good information means a firmer quote. Helpful details to send:
- Drawings or a marked-up plan, if available
- Where the site is, with the postcode
- What the building is and how it’s used
- When you need the work done
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to give us a call on 01277 525 020 or email us with what you know.
From enquiry to sign-off
In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed before the next one starts. Smaller jobs around Three Mile Cross can be grouped with others nearby. A fixed quote is given before anything starts.
- Every room is surveyed and the failed joints listed.
- You get a fixed quote with the phasing plan.
- Old sealant is removed completely and the faces cleaned.
- Each joint is cleaned and left dry.
- New anti-mould sealant goes in and is tooled neat.
- Each area is handed back when ready.
Getting the site ready
- Tell us which areas need to stay in use
- Clear stock, furniture or equipment away from the joints
- Tell us your opening times and when work is allowed
Request a quote
Need a figure for a tender or a budget? Send the scope and any drawings, and we will return a fixed quote you can plan around. For a chat about it beforehand, phone 01277 525 020 or email a schedule or drawings.
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Washroom sealing in Three Mile Cross: the local picture
Central London is about 38 miles from Three Mile Cross, in a commuter belt where offices and business parks are common. Office washrooms on business parks see heavy weekday use, so we work a block of facilities at a time. A number of hotels sit less than 2 miles from Three Mile Cross. En suite bathrooms, staff changing rooms and kitchens all need their sanitary silicone renewed in time. We work a handful of rooms at a time, so the hotel keeps letting the rest.
Customer toilets in retail centres such as Reading Gate Retail Park (to the north of Three Mile Cross) rarely close, so resealing is phased. Office toilets at parks like Reading International Business Park, 0.7 miles to the north of Three Mile Cross, take steady weekday use, and mouldy silicone soon shows.
Three Mile Cross is about 3 miles south of Reading, in Wokingham. Three Mile Cross sits inside our coverage and the rest of Wokingham, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. We work across 42 places in Wokingham, large and small.
Postcode districts covered here: RG7. If your site is on Dairy Grove, Basingstoke Road and Buttermilk Grove or close by, we can quote for washrooms and wet areas. If your building is just outside Three Mile Cross, we cover Ryeish Green (1 mile south-east), Great Lea Common (1 mile north-west), Whitley Wood (1 mile north-east), Shinfield (1 mile east) and Green Park (2 miles north-west). Nearby towns on our patch include Wokingham (5 miles east), Woodley (5 miles north-east), Earley (3 miles north-east), Crowthorne (8 miles east), Lower Earley (3 miles north-east) and Winnersh (4 miles north-east).
What’s near Three Mile Cross
Around Three Mile Cross, our work takes us to commercial buildings near Ryeish Green School, Shinfield Infant and Nursery School and Pearman's Copse. The nearest railway station is Reading Green Park station, roughly 2 miles north-west of the centre. A little further out are Berkshire Medical Heritage Centre Museum (3.2 miles north) and The Oracle (3.3 miles north). Green spaces nearby include Fobney Island Wetland Reserve and Longwater.
Maintenance after handover
Keep the joints in good shape with a few simple steps:
- Note failing joints building by building
- Clear standing water from shower floors where possible
- Avoid scourers and harsh descalers on silicone
- Keep washrooms out of use until we say the sealant has cured
Ventilation is half the battle. A room that stays damp will grow mould on almost anything so report fans that aren’t working to your building services team.
A split joint at a shower tray can leak for a long time before anyone sees it. At that stage, boards or ceilings may need repair so failed joints are worth acting on quickly.
What we’re called out for in Three Mile Cross
Sometimes the sealant fails because something behind it is moving or wet: a loose panel, a leaking waste or water coming through the wall. We look for it before resealing and say if it needs a plumber or another trade.
Site and facilities staff are often the first to spot these:
- Panel joints letting water behind
- Black mould inside silicone joints that cleaning can’t shift
- Failed sealant behind washroom basins
- Stained or open joints at kitchen sinks and worktops
Hotels such as voco Reading Hotel (to the north-west of Three Mile Cross) have en suite bathrooms where tired silicone at the bath, tray and basin is replaced room by room.
What to look for in a quote
- Whether old or failed sealant will be cut out, not overlaid
- Which product they’ll use, and why it suits the joint
- Whether primer will be used where the manufacturer specifies it
- What the guarantee covers, and for how long
FAQs: Three Mile Cross
Can you take on a job at a hospital such as Berkshire Independent 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.
Do hotels near Three Mile Cross have to close for sealant work?
Rarely, if ever. We take a few rooms out at a time. We agree the order of rooms and the timings with you before we start.
Do you work in Three Mile Cross?
Yes. We cover Three Mile Cross, and you can give us a call on 01277 525 020 or email drawings and photos to get started.
How many days will you need on site?
That varies with the scale of the job, though a typical visit normally takes half a day to a day per washroom, depending on the number of fittings. Larger or phased jobs take longer, and we’ll give you a timescale with the quote.
Can you send site paperwork?
Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.
Do you phase washroom resealing?
Only the area we’re working in is closed. Each room reopens after the sealant’s cure time, then we move on.
How do I request a quote?
There are four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. The first step only needs photos and a postcode.
Different surfaces, different methods
Basins and vanity tops
Water getting past a vanity top joint can swell the board beneath. Resealing early protects the unit.
Showers and trays
Shower joints in hotels, gyms and workplaces work hard. Every joint is stripped, degreased, dried and given a new bead.
Towns and villages near Three Mile Cross
More services for Three Mile Cross
Leave it or put it right?
Washrooms shape how visitors judge a building. Guests, clients, pupils and patients notice stained joints even when the room is otherwise spotless. Fresh sanitary silicone lifts a room with very little disruption. Older rural buildings around Three Mile Cross move with the seasons, and rigid or tired sealant can’t keep up. A sealant with the right movement capability, correctly sized, lasts far better.
The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a fixed quote.
Why choose Mastic Doctor in Three Mile Cross
- Fixed quotes based on photographs, drawings or a visit
- Colours chosen to suit frames, cladding or finishes where possible
- Sealing commercial buildings since 2005
- Failed material removed, not covered up
Read what affects the cost or our accreditations and insurance.