Greater London · England
Bathroom & kitchen resealing in Harefield, Greater London
Our applicators work in Harefield on bath, shower, basin, wet room, worktop and sink resealing. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.
- Gaps where the bath or tray has moved
- Leaks into the floor or ceiling below
- Mouldy sealant that has gone black
Silicone sealant specialist in Harefield
Resealing is a small job that makes a big difference. Mouldy silicone makes even a new bathroom look neglected, and a clean white or clear joint fixes it quickly. It also seals the gaps that let water behind the bath. Typical jobs include damp behind the bath or under the tray and water escaping at the shower enclosure, on kitchen worktops & upstands, wet rooms and basins & vanity units. Whether you are looking for a mastic man, a silicone specialist or a sealant contractor in Harefield, Mr Mastic can help.
Whether it’s a bath reseal, a shower reseal or the whole bathroom, we work the same way in Harefield: every bit of old silicone out, mould treated, and a fresh bead of anti-fungal sanitary silicone.
In much of London, period terraces have been converted into flats over the years, with bathrooms fitted into whatever space was available. Small, steamy rooms are where mould gets into sealant and grout fastest.
Whatever the size of the job, it’s backed by our 12-month guarantee.
- Where
- Harefield (UB9)
- Region
- Greater London
- Cover
- 12 months on all our work
- Quotes
- A clear price before work begins
- Telephone
- 07833 053749
- Last updated
- 26 October 2026
Looking after it afterwards
Joint life depends on how it’s used and looked after. We suggest:
- Do not let bottles sit on the bead
- Do not leave water standing on kitchen joints
- Squeegee the walls and tray after use
- Use gentle cleaners on the silicone
Mould needs damp, so keep the room aired. Run the extractor fan during and after a shower, so the silicone gets a chance to dry.
A few black dots in the silicone soon become a black line. When it has grown right through, it rarely cleans out. Catching it early keeps it a simple reseal.
Why it’s worth doing now in Harefield
A failed joint gets more costly to put right the longer it’s left. Once water is behind the bath, it can reach floorboards, panels and the ceiling underneath, turning a small job into a building repair. In a flat in Harefield, failed sealant seldom stays inside your own four walls: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please ring 07833 053749 or email us.
Why us?
- A choice of colours where the product allows
- Any old sealant cut out fully, not covered over
- We’re fully insured
- 20+ years of sealant experience
Take a look at our cost guide or our reviews.
Places near Harefield
Other services in Harefield
Landlord and commercial work in Harefield
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
What affects the cost of bathroom resealing
We do not publish a price list. What we look at:
- Whether old sealant or filler has to be cut out
- Working hours on commercial sites
- The number and length of the joints
- Whether the work is at height
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are not sure whether it needs doing, phone 07833 053749 or send us an email for an honest opinion and a quote.
What to tell us for a quote
When you contact us, these details help:
- What’s wrong with the joints now
- The rough size of the job
- If someone has resealed it before
- Whether it’s a home or a business
Want a quote for bathroom resealing? Please call 07833 053749 or drop us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
DIY versus a professional finish
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.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
Bathroom resealing in Harefield: local notes
London has a lot of flats and conversions, and a failed shower or bath seal in one can show up on the ceiling below, so tired sealant is best dealt with early. London has hard water, which leaves limescale on sealant, grout and taps, and it has to be cleaned off before new sealant goes in.
As a London address, Harefield can be tricky for parking: tell us about permits, visitor bays or off-street space when you book. For landlords with property near Denham station, a reseal between tenants is a quick way to make the bathroom and kitchen look cared for. Managing a site like Harefield Infant School? Then washroom and kitchen sealant there needs the same care as at home, and schools and businesses are part of our work as well as homes.
Harefield is about 3 miles south of Rickmansworth, in Greater London. Whether you’re in the middle of Harefield or further out, bathroom resealing is available for homes and businesses alike. Our Greater London coverage runs to 786 places, and Harefield is one of them.
Every address in UB9 is within our area for bathroom resealing. If you need bathroom resealing at a property on High Street, Vernon Drive and New Park Road or a nearby road, our applicators can take on the job. Close by, we work in Hill End (1 mile north), Woodcock Hill (1 mile north-east), Batchworth Heath (2 miles north-east), Batchworth (2 miles north-east) and Mill End (2 miles north). Within a short drive, we also cover City of Westminster (15 miles south-east), Kensington (14 miles south-east), Hampstead (13 miles east), Ruislip (4 miles south-east), Ealing (10 miles south-east) and Hayes (7 miles south-east).
Local landmarks in Harefield
We work in homes and buildings around The King's Arms Public House, The Green and The Harefield Academy, among other places. The closest station to Harefield is Denham station, roughly 2 miles south of the centre. Other landmarks nearby include Chiltern Open Air Museum (3.4 miles north-west) and Harefield Hospital (within half a mile north-west). Not far away are Dews Farm Sand Pits and Horse Shoe Bay.
When something else is needed
We will not take on work that will not last, so these are the limits:
- A tray or bath that is cracked through
- A tray that rocks until it’s re-bedded
- Loose or hollow tiles, or failed tanking behind them
If in doubt, ring 07833 053749 or send us an email and we’ll say what we think before you book.
What we seal
- Wet rooms
- Shower trays & enclosures
- Baths
- Basins & vanity units
- Sinks & splashbacks
- Kitchen worktops & upstands
What happens on the day
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself usually takes a couple of hours for one bath or shower, or most of a day for a full bathroom and kitchen, depending on the size of the job. For a job in Harefield, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.
- First the area is protected and every bit of old sealant removed, including the film left on the tiles.
- The joint is cleaned, degreased and treated for mould.
- We let it dry fully and fill the bath with water before sealing.
- A single bead of anti-fungal sanitary silicone is applied and tooled smooth.
- We tidy up and give you the cure time, generally around 24 hours.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- On commercial sites, let us know about site rules
- Clear the area around the work
Ask for a quote
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we’ll explain what’s involved before giving you a price.
Related advice
FAQs for Harefield
Is parking an issue for bathroom resealing in Harefield?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. That way the visit can be planned around it.
Do you work for landlords with property near Denham station?
Yes. We work for landlords and agents as well as homeowners. Just call 07833 053749 or send us an email with the address and what needs doing, and we will send you a clear quote.
Which products do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We explain the product when we quote.
Do you do kitchens as well as bathrooms?
Yes. Worktops, sinks and splashbacks are all part of the job, with a sealant suited to kitchens, colour-matched where it shows.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
Do you cover Harefield?
Yes. We work in Harefield. To book, call 07833 053749 or email us.
Are you ARBOMaster approved?
Yes. We’re an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
Can you get rid of the black mould in my sealant?
Yes. We strip the bead, treat the joint and lay new anti-fungal silicone.