Hampshire · England
Remedial Sealant in Over Wallop
Removing failed, mouldy or leaking sealant and putting it right for Over Wallop, backed by a 12-month guarantee. Call for a quick quote.
- Smears and lumps from a botched reseal
- Sealant peeling off a dusty or damp surface
- Floor or wall movement joints that have failed
Common problems we fix in Over Wallop
Using the wrong product is a common cause: caulk where it gets wet, rigid sealant where things move, or an acetoxy silicone on a surface it can mark. None of them last.
The problems people generally mention when they call are:
- Sealant applied over old sealant that has lifted
- Smears and lumps from a botched reseal
- Black mould underneath the bead
- Repeat leaks from the same joint
For an older house near a landmark such as Church of St Peter, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.
Before booking anyone
- Whether VAT is included
- Who turns up on the day
- The length of the guarantee
- How long to leave it before use
Remedial sealant in Over Wallop, done properly
Not every leak is a sealant leak. Cracked trays, leaking wastes and faulty valves often look like a sealant problem. When the fault is elsewhere, we say so instead of resealing for the sake of it. If you are dealing with repeat leaks from the same joint and gaps opening along the back of the worktop, we can help.
Somewhere as small as Over Wallop, homes tend to be cottages, farmhouses or converted buildings, with some newer houses too. Older walls and timber floors can move a little, and cracked grout and split sealant are often the first signs.
Whatever the size of the job, it’s backed by our one-year guarantee in Over Wallop and across Hampshire.
- Place
- Over Wallop (SO20)
- Region
- Hampshire
- Cover
- 12 months on all our work
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Places near Over Wallop
Also in Over Wallop
When it is not the sealant
Sealant isn’t the answer to every problem, and we’d rather say so up front. It will not solve:
- A tray or worktop that needs refixing first
- Sealant in an older building that needs testing for asbestos first
- A cracked shower tray or bath (that needs repair or replacing)
If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think before booking.
Joints and surfaces we work on
- Botched or over-sealed joints
- Failed movement joints
- Expansion joints
- Leaking tray & enclosure joints
- Mouldy bath & shower sealant
- Shrunken worktop sealant
How to look after the new joints
After the cure time, these simple habits help:
- Keep movement joints clear of mortar and paint
- Have loose fittings fixed before resealing
- Look for stains below bathrooms now and then
- Run the fan after every shower
Where we’ve pointed out another fault, have it put right, or the new joint may fail again.
Signs to act on: peeling layers, mould showing through the bead, leaks after showering or cracks in a movement joint. Any of them means it’s time for remedial work.
Should I try it myself first?
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, and the work is guaranteed for a year.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
The process
All our tools and materials come with us in the van, so you do not need to buy or prepare anything. Once we have agreed what’s being done, the area is protected and the work begins. It normally takes a few hours for a typical bath or shower, longer where several layers have been applied. Somewhere as small as Over Wallop, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Surrounding tiles, trays and frames are protected first.
- Every layer of failed sealant is stripped out.
- We clean and degrease the joint and look for signs of movement or water.
- Once dry, a suitable sealant is applied and tooled.
- You get the cure time and our view on why the joint failed.
Preparing for the visit
- Mention any parking rules near the property
- Clear the area around the work
- Mention any tricky access
Get a quote
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we’ll come back to you with a quote.
Related advice
Over Wallop: your questions answered
Can you help a landlord with a rental near Grateley station?
Yes. We work for landlords and agents as well as householders. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear quote.
Do you cover Over Wallop for remedial sealant?
Yes. We work across London and the South East, and Over Wallop is part of that. Just call 0345 464 0079 or email us with a few details of the job.
Can you quote for more than one area?
Of course. Doing several areas at once is generally more efficient.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We’ll tell you what we are using and why.
What does remedial sealant cost?
Size, access and the old material all affect the cost. Ask us for a quote.
Do you hold any approvals?
Yes. We’re approved under the ARBOMaster scheme.
Can I choose the sealant colour?
We help you choose a colour that suits, from white and clear to greys and other shades. The product needed can limit the range.
Are you insured?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
What remedial sealant looks like in Over Wallop
Most of the South East has hard water, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
Rented homes near Grateley station change hands often, and botched sealant from a previous quick fix is easier to strip out between tenants. For site and facilities teams at buildings such as Wallop Primary School, 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.
Over Wallop is about 7 miles south-west of Andover, in Hampshire. We provide remedial sealant to homes and businesses in Over Wallop and the surrounding area, as part of our work across Hampshire. Over Wallop is one of 683 towns and villages in Hampshire we cover. There’s also a page for Southampton, roughly 18 miles from Over Wallop.
Every address in SO20 is covered for remedial sealant. Local streets include Station Road, King Lane and King Lane Cottages, and we cover them all. If you are just outside Over Wallop, we cover Middle Wallop (1 mile south-east), Kentsboro (2 miles north-east), Nether Wallop (2 miles south-east), Fox (3 miles north) and Amport (4 miles north). Further out, we also cover Winchester (13 miles south-east), Andover (7 miles north-east), Chandler's Ford (14 miles south-east), Romsey (12 miles south-east), Hyde (13 miles south-east) and Tidworth (7 miles north-west).
Landmarks near Over Wallop
Typical jobs here are in homes near The White Hart Inn, among other places. Over Wallop’s nearest station is Grateley station, roughly 2 miles north-west of the centre. Green spaces nearby include Winterbourne Downs RSPB reserve and Quarley Hill.
Surface by surface
Leaking trays & enclosures
A cracked tray, failed valve or leaking waste needs a different fix. We say so rather than reseal.
Over-sealed & botched joints
Thick, smeared sealant looks messy and hides problems. We strip it back so we can see the joint.
For landlords and businesses
In hotels, rooms out of use cost money, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
Housing providers, facilities teams and property managers book us too in Over Wallop and across Hampshire. Several sites can be quoted together.