Greater London · England
College Park Bathroom Resealing
Professional bathroom resealing in and around College Park, with old sealant always removed completely.
- Water escaping at the shower enclosure
- Splits where the tray meets the wall
- Sealant that has split, shrunk or peeled away
How we handle bathroom resealing in College Park
The bead of silicone around a bath, tray or worktop is what keeps water out of the gaps. When it splits, shrinks or turns black, water gets behind it and into the wall or floor. Our team cut the old bead out completely and lay a new one in anti-fungal sanitary silicone. We work on kitchen worktops & upstands, shower trays & enclosures and baths, and common reasons people get in touch are a bead that has pulled away from the tiles and mouldy sealant that has gone black.
London’s water is hard, so limescale builds up along sealant lines, in grout and on fittings. In College Park, bathroom resealing is as much about a room looking cared for as about keeping water out.
All of our work is guaranteed for twelve months, in College Park and everywhere else we cover.
- Place
- College Park (NW10, W10, NW26)
- Wider area
- Greater London
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What happens if it’s left?
Leaving a split or mouldy bead only stores up trouble. Once water is behind the bath, it can reach floorboards, panels and the ceiling underneath, turning a small job into a building repair. In London conversions, one flat’s bathroom is often above another flat’s ceiling, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Putting it right early is much less trouble.
What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts.
Why us?
- Tidy, careful work
- We are fully insured
- A choice of colours where the product allows
- Sealant colour chosen to suit
What we’re called out for in College Park
Not every tube in the shop is meant for a shower. Decorators’ caulk and all-purpose sealants are not made for constant wetting, so they stain, crack or go mouldy before long. Wet areas call for a sanitary silicone with an anti-fungal additive.
Signs it’s time to call us include:
- Water escaping at the shower enclosure
- Water getting behind the bath panel
- Mouldy sealant that has gone black
- Sealant that has split, shrunk or peeled away
For site and facilities teams at buildings such as Kenmont Primary School, its toilets, changing areas and kitchens need their sealant renewed like any other building’s.
Before you book anyone
- What preparation is included
- Which sealant they’ll use, and why
- How long the guarantee is
- Are they insured?
Keeping the joints in good condition
Aftercare is simple, and it makes a real difference:
- Move toiletries away from the joint
- Stick to a soft cloth and a mild cleaner
- Give the silicone its full cure time
- Dry the bead with a towel now and then
Treat the new bead gently when you clean: warm soapy water and a soft cloth do the job. Avoid scouring pads and anything sharp, because a damaged bead gives mould a foothold.
Mould that starts as a few spots spreads through the bead. Once it’s deep in the silicone, cleaning generally will not remove it, and nearby grout often goes the same way. Catching it early keeps it a simple reseal.
Questions from College Park
Do you work for landlords with property near Willesden Junction station?
Yes, we work for letting agents and landlords. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before we start.
Is parking a problem for a job in College Park?
In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot.
What sealant do you use?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Do you do commercial work?
Yes, regularly. Larger jobs can be planned room by room or area by area.
Where is Mr Mastic based?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
What does bathroom resealing cost?
Every job is different, so each one gets its own quote. For a quick quote, phone 0345 464 0079 or send us an email with a short description of the job.
Can mouldy silicone be sorted out?
Yes. The old sealant comes out, the mould is treated, and we reseal with anti-fungal sanitary silicone.
Can I do it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
College Park homes and their sealant
London’s water is hard, which leaves limescale on sealant, grout and taps. College Park has hotels and guest accommodation nearby. Hotel bathrooms are part of our work as well as homes, and can be done room by room.
College Park is in London, so parking needs planning: let us know about parking bays, permits or a driveway. If you let a flat or house near Willesden Junction station, fresh sealant around the bath, shower and sink between tenancies helps a property present well and keeps leaks at bay.
College Park is about 1 mile south-east of Harlesden, in Greater London. We carry out bathroom resealing for homes and businesses in College Park and nearby. We cover 764 towns and villages across Greater London, large and small. For nearby work, see our London page, about 6 miles away.
Our applicators cover all of NW10, W10 and NW26 for bathroom resealing and the streets around it. Local streets include Tubbs Road, Waldo Road and Hythe Road, and we cover them all. We also cover the places around College Park: Kensal Green (1 mile east), Old Oak Common (1 mile south-west), Harlesden (1 mile north-west), Willesden Green (1 mile north) and Kensal Rise (1 mile east). Further out, we also cover London (6 miles east), City of Westminster (4 miles east), Marylebone (4 miles east), Kensington (3 miles south-east), St Pancras (5 miles east) and Shoreditch (7 miles east).
Landmarks near College Park
Typical jobs here are in homes near Newman Catholic College, Brondesbury College and Little Wormwood Scrubs, among other places. College Park has its own railway station: Willesden Junction station. Nearby you will also find Westfield London (1.7 miles south) and Brent Museum and Archives (1.1 miles north). Not far away are Westbere Copse and The Long Water.
Work for landlords, hotels and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Landlords and letting agents in College Park can book us as well as homeowners. Sealant work between tenants keeps a property looking cared for.
What we do, step by step
On the day, there’s very little for you to do. Show us the job and we will take it from there. The job generally takes half a day or less for one room, longer when the kitchen is included. In a London area like College Park, the main things to plan are parking and access: let us know about parking, the floor we’ll be working on and any lift or shared entrance.
- We start by protecting the area and stripping out the old bead, including the film left on the tiles.
- We clean and degrease the joint and treat any mould.
- The joint is left to dry, and baths are filled with water first.
- New anti-fungal silicone goes on in a colour to suit and is tooled to a clean finish.
- Finally we tidy up and explain the cure time before we leave.
Getting ready for the visit
- On commercial sites, let us know about site rules
- Let us know if you’ve seen damp or leaks
- Clear items away from the joints we are working on
Get a quote
Every job is quoted individually. Just call 0345 464 0079 or drop us an email with the details.
Related advice
How we quote for bathroom resealing
For a quick quote, just ask. What matters most is:
- How much there is to do
- How many rooms, windows or areas are involved
- Any working-time requirements on site
- How easy the joints are to reach
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part.
What to tell us for a quote
To make quoting easier, let us know:
- How many joints, rooms or windows are involved
- How we’d reach the joints
- If someone has resealed it before
- A few pictures by email, if you can
We don’t publish a price list. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or email us.