Greater London · England
High Barnet Bathroom Resealing
Bath, shower, basin, wet room, worktop and sink resealing for homes and businesses in High Barnet and across Greater London. Fully insured, ARBOMaster approved and guaranteed for a year.
- Lumpy, uneven sealant from a DIY attempt
- A bead that has pulled away from the tiles
- Two layers of silicone, both failing
Bathroom resealing in High Barnet, done properly
Sealant is the soft line between a bath, shower or worktop and the wall. Once it cracks or goes mouldy, water starts to find its way through into walls, panels and floors. Every trace of the old sealant is taken out and replaced with anti-fungal sanitary silicone. If you are dealing with water escaping at the shower enclosure and lumpy, uneven sealant from a DIY attempt, we can help, on basins & vanity units, baths and shower trays & enclosures alike.
Hard London water leaves limescale on sealant, grout and taps alike. For a bathroom or kitchen in High Barnet, getting the joints right keeps water where it belongs and the room looking clean.
Our work is backed for twelve months.
- Where
- High Barnet (EN5)
- Wider area
- Greater London
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Bathroom resealing around High Barnet
London has hard water, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in. London has a lot of flats and conversions, and a failed shower or bath seal in one can show up on the ceiling below, which is why it’s worth fixing early.
Homes close to Christ Church include some older properties, and bathrooms in older houses have often been refitted more than once, with sealant laid over sealant. If you look after a building such as Foulds School, we reseal washrooms and kitchens in schools and businesses as well as homes. If you let a flat or house near Hadley Wood station, mouldy sealant is one of the first things a new tenant notices, so it’s worth renewing between lets.
High Barnet is about 1 mile north-west of Barnet, in Greater London. Homes, rented property, offices and hotels in High Barnet is covered for bathroom resealing, old or new, large or small. The work is guaranteed for a year. We cover 764 towns and villages across Greater London. You can also see our page for London, about 12 miles away.
Every address in EN5 is covered for bathroom resealing. We cover properties on Byng Road, Park Road and Kings Road. You will find High Barnet on the A1081, which makes it straightforward to reach with everything needed for bathroom resealing. Close by, we work in Hadley (1 mile east), Arkley (1 mile south-west), Kitts End (1 mile north), Totteridge (1 mile south) and Rowley Green (2 miles west). We also work in nearby towns such as London (12 miles south-east), City of Westminster (10 miles south), Marylebone (10 miles south), Kensington (11 miles south), St Pancras (10 miles south-east) and Shoreditch (11 miles south-east).
Landmarks near High Barnet
Around High Barnet, our work takes us to homes and buildings near Susi Earnshaw Theatre School, The White Lion pub and Queen Elizabeth's School, among other places. For rail, the closest station is Hadley Wood station, roughly 1.6 miles north-east. A little further out are Spires Shopping Centre (within half a mile east) and Barnet General Hospital (0.5 miles south-west). Open spaces near High Barnet include Barnet Countryside Centre and Darland's Lake.
How to look after the new joints
Once the sealant has cured, a few habits help it last:
- Wipe the sealant dry after showering
- Run the extractor fan during and after every shower
- Keep scourers and sharp tools away from the bead
- Give the silicone its full cure time
Good ventilation does more than any cleaner. Use the fan, or open a window, while you bathe and for a while afterwards, so the bead dries out between uses.
Small signs come before a leak: a corner lifting, a gap behind the bead, a dark line under the silicone or a damp patch on the ceiling below. Any of these means the joint needs attention.
When something else is needed
To be straight with you, some problems need a different trade:
- A cracked shower tray or bath (that needs repair or replacement)
- Movement from a bath with loose feet or no proper support
- Leaks from a shower valve, waste or pipework (a plumber’s job)
Not sure which it is? You can call 0345 464 0079 or send us an email and we will tell you honestly.
Joints and surfaces we work on
- Baths
- Kitchen worktops & upstands
- Sinks & splashbacks
- Wet rooms
- Shower trays & enclosures
- Basins & vanity units
Should I try it myself first?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
How we quote for bathroom resealing
We quote each job individually. These are the things that affect it:
- How easy the joints are to reach
- The number and length of the joints
- Mould in or behind the old joints
- How much old sealant there is and how hard it is to remove
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first.
What we need to know
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- The problem you’ve noticed
- The address or postcode of the job
- Roughly how big the job is
- If it’s domestic, commercial or a hotel
Getting a quote is simple: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand, and we’ll take it from there.
Places near High Barnet
More services for High Barnet
Why deal with it now?
You don’t need a new bathroom because the sealant looks bad. A new bead often brings the whole room back, provided the bath, tray and tiles are in good order. If we find a deeper problem, you will hear it from us. Damp from a failed joint spreads quietly in older London brickwork and timber, and by the time it shows on a wall or ceiling in High Barnet, the repair is bigger than the sealant job would have been.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
Why us?
- Arbo and Everbuild products
- Anti-fungal silicone where joints get wet
- ARBOMaster approved applicator
- Rated 4.9 stars on Google
See what affects the cost and our reviews.
What happens on the day
On the day, there’s very little for you to do. Show us the job and we will take it from there. The work itself takes around two hours for one bath or shower, longer for a whole bathroom from start to finish. In a London area like High Barnet, 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 cover the area around the joints we’re working on.
- Old sealant is sliced away and the residue removed.
- We treat any mould and let the joint dry properly.
- Baths are filled first, then anti-fungal sanitary silicone is applied in a colour to suit.
- We finish the joint, clear up and tell you how long to leave it before it gets wet.
Preparing for the visit
- Where the joints are inside, avoid wetting them before we arrive
- On commercial sites, let us know about site rules
- Let us know about earlier repairs to the joints
How to get a quote
For bathroom resealing in High Barnet, call 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.
Advice
Questions from High Barnet
Can worn sealant in a flat in High Barnet cause a leak downstairs?
Yes. In a flat, water from a failed bath or shower seal has only one way to go, and that’s down. Cutting out the old sealant and laying a new bead early stops it getting that far.
I let a flat near Hadley Wood station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
Can you do several jobs on one visit?
Yes. Several rooms, windows or areas can go on one quote.
Do you have insurance?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
Does the resealing come with a guarantee?
Yes. Our 12-month guarantee covers every job, and we’re ARBOMaster approved applicators.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. Our applicators cover High Barnet, along with the rest of our area.
Do the sealants smell?
There can be a smell while the sealant cures. Opening a window helps.
Do you cover High Barnet?
Yes. We are based in Crawley and work across South East England, London and Scotland, High Barnet included.
Surface by surface
Basins & vanity units
The back of a basin gets wet every time someone washes. Old sealant there often goes black at the corners, so it’s cut out and renewed just like a bath joint.
Sinks & splashbacks
Water getting under the rim of an inset sink can soak the worktop. Where the sealant around the visible edge has failed, we renew it.