Hampshire · England
Knightwood Remedial Sealant
Remedial sealant across Knightwood and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Dark patches showing through the sealant
- Torn expansion joints
- Sealant peeling off a dusty or damp surface
How we handle remedial sealant in Knightwood
With more than 20 years’ experience, our applicators have seen most of the ways sealant can fail. We are fully insured ARBOMaster approved applicators, and remedial work carries our one-year guarantee. We work on botched or over-sealed joints, failed movement joints and shrunken worktop sealant, and the jobs we see most are dark patches showing through the sealant and sealant applied over old sealant that has lifted.
Even in a smaller place like Knightwood, bathrooms and kitchens see heavy daily use. Whether it’s a cottage bathroom or a newer en suite, the approach is the same: old sealant or grout cut out, joints cleaned and dried, and a fresh finish laid.
A 12-month guarantee comes as standard.
- Where
- Knightwood (SO53, SO52)
- Region
- Hampshire
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
How it works
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours, depending on how many layers have to come out, and the area is left clean. For a job in Knightwood, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- Surrounding tiles, trays and frames are protected first.
- Every layer of failed sealant is stripped out.
- The joint is degreased and checked for movement and leaks.
- New sealant goes in once the joint is dry, and is tooled smooth.
- You get the cure time and our view on why the joint failed.
Before we arrive
- Clear the area around the work
- Mention if the joints have been sealed before
- On commercial sites, let us know about site rules
Get a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. A few photos by email make the job easier to understand, and we’ll take it from there.
Advice
Honest limits
We’d rather tell you now than do work that will not last, so these are the limits:
- A tray or bath that is cracked
- Tiles that have come away from the wall
- A tray or worktop that needs refixing first
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think.
What we seal
- Botched or over-sealed joints
- Mouldy bath & shower sealant
- Shrunken worktop sealant
- Expansion joints
- Failed movement joints
- Leaking tray & enclosure joints
Remedial sealant in Knightwood: local notes
Hard water is the norm across most of the South East, so limescale builds up on sealant, grout and fittings.
Homes close to St Francis include some older properties, and older homes can move a little, which is hard on rigid grout and tired sealant. Rented homes near Chandlers Ford station change hands often, and a joint that keeps failing is best fixed properly while the property is empty.
Knightwood is about 1 mile west of Chandler's Ford, in Hampshire. We carry out remedial sealant for homeowners, landlords and businesses in Knightwood, as part of our work across Hampshire. Our Hampshire coverage runs to 683 places, Knightwood among them.
All of SO53 and SO52 is covered for remedial sealant. Whether your property is on Foyle Road, Harvest Road and Flexford Road or anywhere close by, we can help. Neighbouring places we cover for remedial sealant 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). We also work in nearby towns such as 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).
Near you in Knightwood
In Knightwood, that means homes and buildings near Toynbee School and the streets around them. For rail, the closest station is Chandlers Ford station, about 0.8 miles south-east of the centre. Well-known places in the area include Romsey Community Hospital (3.5 miles west) and Eastleigh Museum (2.5 miles south-east). Not far away are Flexford Nature Reserve.
Landlord and commercial work in Knightwood
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can go on one quote.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Clean sealant with mild products only
- Deal with small splits early
- Keep an eye on the ceiling below the bathroom
- Do not point over movement joints
Give the new sealant its full cure time: follow the cure time we give you.
If a joint has failed more than once, stop resealing it. Have someone find out why, otherwise the next attempt will fail too.
Nearby places to Knightwood
What else we do in Knightwood
Questions from Knightwood
Can you do remedial sealant in Knightwood?
Yes. We work across London and the South East, and Knightwood is part of that. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear quote.
Can you help a landlord with a rental near Chandlers Ford station?
Yes, we work for landlords and agents. Just ring 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear quote.
Is remedial work guaranteed?
Yes, with our 12-month guarantee. Where we have flagged another fault, it needs fixing for the joint to last.
Can you strip sealant from an acrylic tray safely?
Yes. We cut and lift the old sealant with tools suited to the surface, then clean off the residue. We point out any damage that is already there.
How long does remedial resealing take?
The number of joints and layers decides it. We’ll tell you before any work starts.
Can you do several jobs on one visit?
Yes. Tell us about everything you’d like done and we’ll quote it together.
Do you do commercial work?
Yes. We have worked for hotels, offices and other businesses and we’re fully insured.
What if the leak isn’t the sealant?
Then we explain what we have found. A plumber or fitter may be needed.
Do you need remedial sealant in Knightwood?
How a joint is built matters as much as the product. A bead bonded on three sides, or laid too thick, can’t flex, and tears at the first real movement. Backing rod or bond-breaker tape prevents it.
People usually contact us after spotting something like this:
- Beads that never stuck properly
- Kitchen joints letting water behind the worktop
- Caulk or the wrong sealant used in a wet area
- Leaks that keep coming back after resealing
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.
What to look for in a quote
- How much experience the applicator has
- How the surfaces are prepared before sealing
- Which sealant they’ll use, and why
- Whether VAT is included
Why it’s worth doing now in Knightwood
Leaks that are left keep doing damage out of sight: wet floors, stained ceilings and swollen worktops. By comparison, sorting the joint is quick. Around Knightwood, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. We give a clear quote before any work starts.
Why choose Mr Mastic in Knightwood
- White, clear, grey or another colour, product permitting
- Anti-fungal sanitary silicone in wet areas
- An ARBOMaster approved applicator
- A sealant colour to suit the surroundings
Take a look at our cost guide or customer reviews.
How the job changes by surface
Worktops & kitchens
Kitchen joints hold grease and residue, so cleaning takes longer than in a bathroom before resealing.
Windows & doors
A frame that keeps leaking may not be the mastic. We check the joint and tell you if it looks to be something else.