Hampshire · England
Bathroom & kitchen resealing in Knowle, Hampshire
Bathroom resealing in Knowle from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Failed sealant on the screen profile
- Water getting behind the kitchen upstand
- A joint torn by a bath that flexes
Bathroom resealing in Knowle, done properly
A shower joint gets soaked every day. Trays, enclosures, screen profiles and wet room floors all need a flexible, waterproof seal. They’re resealed with anti-fungal sanitary silicone, tooled smooth so water runs off instead of sitting in a ridge. Common call-outs are for lumpy, uneven sealant from a DIY attempt and water escaping at the shower enclosure, across basins & vanity units, kitchen worktops & upstands and wet rooms.
Being in a small place like Knowle makes no difference to the job itself: the journey and access are simply agreed in advance. In the bathroom or kitchen, the work is the same as in any town.
The work is covered for a year after we finish. If there’s a problem with it, please ring 0345 464 0079 or email us.
- Where
- Knowle (PO17)
- Wider area
- Hampshire
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
DIY sealant or a professional job?
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
How the visit works
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The job generally takes a couple of hours for one bath or shower, or most of a day for a full bathroom and kitchen, including the tidy-up. Somewhere as small as Knowle, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Protection goes down around the bath, shower or worktop.
- We cut away the old sealant and clean off what’s left.
- Mould is treated, then the joint is left to dry thoroughly.
- Any bath is filled with water, then we lay a bead of anti-fungal silicone in white, clear or a matching colour.
- The joint is finished neatly and we explain when it can get wet.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Let us know about earlier repairs to the joints
- Let us know about parking restrictions
Ask for a quote
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or drop us an email.
Related advice
Do you need bathroom resealing in Knowle?
Sealant laid on a damp, dusty or greasy joint never bonds properly. Traces of soap, bath oil and old sealant stop it gripping, and a joint that looked fine soon begins to come away.
Any of these means the joints need attention:
- A bead that has pulled away from the tiles
- A reseal done over the top of the old bead
- Black spots spreading through the bead
- Damp behind the bath or under the tray
Letting a property close to Fareham station? Then fresh sealant around the bath, shower and sink between tenancies helps a property present well and keeps leaks at bay.
Comparing quotes
- What product goes in the joint
- Whether they’re fully insured
- What happens if they find a problem under the old sealant
- How long the guarantee is
Leave it or put it right?
The difference in a professional reseal is mostly what you don’t see: cutting out every trace of the old bead, cleaning, treating mould and letting the joint dry. Skip those steps and even the best silicone fails early. Older cottages and farmhouses around Knowle can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part.
Why choose Mr Mastic in Knowle
- Fully insured
- Colour agreed with you before work begins
- ARBOMaster approved applicator
- Over 20 years’ experience
Take a look at our cost guide and our reviews.
What bathroom resealing looks like in Knowle
Hard water is the norm across most of the South East, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
Schools such as Orchard Lea Infant School are buildings too, and we reseal washrooms and kitchens in schools and businesses as well as homes. If you live in an older home near Church of St Francis, walls and floors in older homes can move, and sealant and grout show it first.
Knowle is about 2 miles north of Fareham, in Hampshire. Every kind of property in Knowle is covered for bathroom resealing. The work is guaranteed for a year. Knowle is one of 683 towns and villages in Hampshire where we work for bathroom resealing. We also work in Portsmouth, around 7 miles away.
We cover every part of PO17 for bathroom resealing. That includes homes and businesses on Serotine Close, Boundary Walk and Park Approach. Other places close to Knowle include Funtley (1 mile south), Tapnage (1 mile north-west), Heathfield (2 miles south), Segensworth (2 miles west) and Titchfield Park (2 miles south-west). We also work in nearby towns such as Winchester (13 miles north), Gosport (6 miles south-east), Havant (10 miles east), Eastleigh (9 miles north-west), Horndean (9 miles east) and Totton (13 miles west).
Near you in Knowle
We work in homes and buildings around The Miners Arms and The Henry Cort Community College. For rail, the closest station is Fareham station, roughly 2 miles south. A little further out are Portchester Castle (4.9 miles south-east) and Knowle Hospital (less than half a mile north-east). For a walk, there’s Portsdown Hill and Swanwick Lakes.
Surface by surface
Sinks & splashbacks
Where a splashback meets the worktop, there’s a joint that catches every splash. It’s resealed in white, clear or a colour to suit.
Kitchen worktops & upstands
Worktop joints get wet and wiped every day. We seal them in a colour that suits the worktop.
Quotes for bathroom resealing in Knowle
Call for a quick quote. What matters most is:
- Access and height
- The size of the job
- Mould in or behind the old joints
- The number of rooms or windows
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs. Ask us for a quote and we will go through it with you.
Helping us quote
Photos by email are helpful but not essential. Try to tell us:
- The type of property
- Roughly how big the job is
- The problem you’ve noticed
- If someone has resealed it before
For a quote, phone 0345 464 0079 or send us an email with the location and a short description of the problem. We’ll give you a clear quote before any work starts.
Places near Knowle
Other services in Knowle
Knowle questions
Do you work for landlords with property near Fareham station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can ring 0345 464 0079 or email us with the details for a clear quote.
Will you come out to Knowle?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you work on commercial sites?
Yes. We have worked for hotels, offices and other businesses and we are fully insured.
Is it OK to put new sealant on top of the old bead?
No, and it’s one of the main reasons reseals fail. The old joint is stripped, cleaned and resealed from scratch.
What does bathroom resealing cost?
It depends on the job, so we quote each one individually. To get one, phone 0345 464 0079 or drop us an email and let us know what needs doing and where.
What information do you need?
The location, the problem and the rough size of the job. If you can, email a few pictures.
How long does a bath or shower reseal take?
Allow a couple of hours for one bath or shower, or most of a day for a full bathroom and kitchen. You will know how long to expect before we start.
Which products do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Honest limits
It helps to know what we can’t do:
- Tiles that have come away from the wall
- Failed grout lines across the wall
- Leaks from a shower valve, waste or pipework (a plumber’s job)
If in doubt, ring 0345 464 0079 or email us and we will say what we think before booking.
What we seal
- Sinks & splashbacks
- Baths
- Kitchen worktops & upstands
- Wet rooms
- Shower trays & enclosures
- Basins & vanity units