Hampshire · England
Bathroom & kitchen resealing in Knightwood, Hampshire
Bath, shower, basin, wet room, worktop and sink resealing in Knightwood, with a 12-month guarantee on every job. Ask us for a quote.
- Two layers of silicone, both failing
- Lumpy, uneven sealant from a DIY attempt
- Gaps between the worktop and the wall
How we handle bathroom resealing in Knightwood
It isn’t only bathrooms. Worktop upstands, sink edges and splashback joints get wet every single day, and water behind a laminate worktop can make it swell. Kitchen joints get a sealant suited to kitchens, colour-matched where it shows. We work on basins & vanity units, wet rooms and shower trays & enclosures, and the jobs we see most are two layers of silicone, both failing and a joint torn by a bath that flexes.
Around Knightwood, you will mostly find houses and bungalows, from older cottages to newer builds. Sealant and grout wear out here just as they do in a big town.
We guarantee the work for a year. If something is not right with it in that time, tell us and we’ll put it right.
- Location
- Knightwood (SO53, SO52)
- Region
- Hampshire
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Signs you need bathroom resealing in Knightwood
Baths and trays move. Acrylic in particular gives slightly under the weight of water and a person, while a poorly supported tray can shift underfoot. Over time the joint tears or pulls away from the tile.
If you can see any of these, it’s time to have the joints looked at:
- A messy, uneven bead from a previous reseal
- Two layers of silicone, both failing
- Black mould in the silicone that won’t clean off
- Water escaping at the shower enclosure
Rented homes near Chandlers Ford station change hands often, and mouldy sealant is one of the first things a new tenant notices, so it’s worth renewing between lets.
Questions to ask before booking
- How long the guarantee is
- How the surfaces are prepared before sealing
- Which sealant they’ll use, and why
- When the joint can take water or movement
Nearby places to Knightwood
What else we do in Knightwood
DIY sealant or a professional job?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
What bathroom resealing looks like in Knightwood
Hard water is the norm across most of the South East, which leaves limescale on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
For an older house near a landmark such as St Francis, walls and floors in older homes can move, and sealant and grout show it first. If you look after a building such as Knightwood Primary School, its toilets, changing areas and kitchens need their sealant renewed like any other building’s.
Knightwood is about 1 mile west of Chandler's Ford, in Hampshire. We provide bathroom resealing to homeowners, landlords and businesses in Knightwood and nearby, as part of our work across Hampshire. Knightwood is one of 683 towns and villages in Hampshire where we work for bathroom resealing.
Here we cover the SO53 and SO52 postcode area for bathroom resealing. Streets in the area include Foyle Road, Harvest Road and Flexford Road. Neighbouring places we cover for bathroom resealing include Chilworth Old Village (2 miles south-west), Chilworth (2 miles south), North Baddesley (2 miles west), Toothill (3 miles south-west) and Bassett (3 miles south). Within a short drive, we also cover Winchester (6 miles north-east), Eastleigh (3 miles south-east), Fareham (13 miles south-east), Totton (7 miles south-west), Hedge End (7 miles south-east) and Romsey (4 miles west).
Around Knightwood
Typical jobs here are in homes near Toynbee School. Knightwood’s nearest station is Chandlers Ford station, roughly 0.8 miles south-east of the centre. Nearby you will also find Romsey Community Hospital (3.5 miles west) and Eastleigh Museum (2.5 miles south-east). Green spaces nearby include Flexford Nature Reserve.
How the job changes by surface
Baths
Acrylic baths give a little under load, while steel and cast iron baths move less but still settle when full. Filling the bath first allows for that movement.
Wet rooms
Not every wet room leak is a sealant problem. We reseal the joints and will tell you if the water seems to be coming from somewhere else.
What affects the cost of bathroom resealing
You will get a clear quote before any work starts. It takes into account:
- The number and length of the joints
- How much old sealant there is and how hard it is to remove
- Which sealant suits the joint
- Working hours on commercial sites
Combining jobs into one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Asking for a quote
Photos by email are helpful but not essential. Try to tell us:
- The rough size of the job
- Access, such as stairs, a lift or height
- Whether it’s a home or a business
- What the problem is, such as mould, gaps, leaks or cracking
Every job is quoted individually, so start by telling us what you need. Just call 0345 464 0079 or send us an email with the details.
How the visit works
We keep the work tidy and contained to the joints we’re treating, so you can carry on as normal. Expect the work to take two to three hours for a typical bath, depending on how much old sealant there is, and we tell you how long to leave it before we go. Parking around Knightwood is generally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- Protection goes down around the bath, shower or worktop.
- Old sealant is sliced away and the residue removed.
- Mould is treated, then the joint is left to dry thoroughly.
- 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
- Plan for the work area to be out of bounds to pets and children
- Tell us if parking is tricky
- Where the joints are inside, avoid wetting them before we arrive
Ask for a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that’s easy.
Read more
For landlords and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will quote.
Housing providers, facilities teams and property managers book us too. Several sites can go on one quote.
Looking after it afterwards
How long the joints last depends on use and care. Here’s what we suggest:
- Never pick at the silicone with a blade
- Give the silicone its full cure time
- Run the extractor fan during and after every shower
- Don’t leave water standing on kitchen joints
Give the silicone time to cure before it gets wet, following the cure time we give you. Once it’s cured, wiping it down after use keeps it looking new.
A few black dots in the silicone soon become a black line. When it has grown right through, it rarely cleans out, and nearby grout often goes the same way. Replacing the sealant early keeps the job small.
Knightwood questions
I let a flat near Chandlers Ford station. Can you help?
Yes. We work for letting agents and landlords as well as homeowners, and several properties can be quoted together. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
Do you cover smaller places like Knightwood?
Yes. Knightwood is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you do several jobs on one visit?
Of course. Doing several areas at once is normally more efficient.
Is it worth trying it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
My sealant has gone black. Can you sort it?
Yes, by replacing the sealant. Sprays can fade the marks, but cutting it out and resealing is what lasts. Airing the room well helps stop it returning.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status and we’re fully insured too.
Can you work on commercial sites?
Yes. We’ve worked for hotels, offices and other businesses and we are fully insured.