Hampshire · England
Remedial Sealant in Cottonworth
Removing failed, mouldy or leaking sealant and putting it right for homes and businesses in Cottonworth and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Floor or wall movement joints that have failed
- Dark patches showing through the sealant
- Repeat leaks from the same joint
What sealant work cannot fix
We will always be straight with you, so here’s what new sealant will not do:
- Tiles that have come away from the wall
- A bath, tray or worktop that moves until it’s properly fixed
- A tray or bath that is cracked
If you’re not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer before you book.
Where we work in Cottonworth
- Shrunken worktop sealant
- Failed movement joints
- Mouldy bath & shower sealant
- Expansion joints
- Leaking tray & enclosure joints
- Botched or over-sealed joints
How we handle remedial sealant in Cottonworth
Movement and expansion joints fail when the sealant cannot stretch. We cut out the failed sealant and set the depth with backing, then a flexible sealant matched to the movement goes in. Common call-outs are for repeat leaks from the same joint and floor or wall movement joints that have failed, on failed movement joints, shrunken worktop sealant and expansion joints.
Homes around Cottonworth are mostly houses and cottages rather than flats. The work is the same as anywhere: old material cut out, joints cleaned and a fresh finish laid.
All our work comes with a one-year guarantee.
- Location
- Cottonworth (SP11)
- Wider area
- Hampshire
- Cover
- One year on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What remedial sealant looks like in Cottonworth
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 Church of St Mary the Less, timber floors under older bathrooms flex, so joints need a sealant that moves with them.
Cottonworth is about 4 miles south of Andover, in Hampshire. We provide remedial sealant to homes and businesses in Cottonworth and the surrounding area, as part of our work across Hampshire. We cover 683 towns and villages across Hampshire. We also work in Southampton, around 17 miles away.
All of SP11 is within our area for remedial sealant. We also cover the places around Cottonworth: Fullerton (1 mile south-west), Chilbolton (1 mile east), Wherwell (1 mile north-east), Wherwell Wood (1 mile north) and Leckford (1 mile south). Further out, we also cover Winchester (9 miles south-east), Eastleigh (14 miles south), Andover (4 miles north), Chandler's Ford (12 miles south), Romsey (11 miles south) and Hyde (9 miles south-east).
Local landmarks in Cottonworth
In Cottonworth, that means homes and buildings near Longstock Park and Abbots Mitre pub and the streets around them. Cottonworth’s nearest station is Andover station, about 4.1 miles north of the centre. Nearby you’ll also find Andover War Memorial Hospital (4.4 miles north) and Andover Museum (3.8 miles north). Green spaces nearby include Anton Lakes and Mill Lake.
Questions from Cottonworth
Do you cover Cottonworth for remedial sealant?
Yes, Cottonworth is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll give you a clear price.
Can you help a landlord with a rental near Andover station?
Yes, we work for landlords and agents. Just call 0345 464 0079 or email us and tell us about the property, and we’ll send you a clear quote.
When is the sealant fully cured?
That depends on the sealant used, so please follow the time we give you.
Can you strip sealant from an acrylic tray safely?
Yes, with care. 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.
What do you need from me for a quote?
Only a few details: the address or postcode, what’s wrong and any access issues. After that, simply ring 0345 464 0079 or drop us an email.
Do I have to be there?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Can you take off two layers of silicone?
Yes. We remove every layer; over-sealing fails because silicone will not bond to silicone.
Where is Mr Mastic based?
We’re a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
What affects the quote in Cottonworth
There’s no set price list, because jobs vary so much. The quote depends on:
- The number of rooms or windows
- The amount of work
- How easy the joints are to reach
- Working hours on commercial sites
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
Asking for a quote
You do not need to know the technical terms. It helps if you can tell us:
- If it’s domestic, commercial or a hotel
- Photos by email, if that is easy
- The rough size of the job
- Any previous sealing or DIY work
If you’re in Cottonworth and need remedial sealant, call 0345 464 0079 or email us. Tell us what the problem is and where, and we will agree the price before any work begins.
Nearby places to Cottonworth
More services for Cottonworth
Keeping the joints in good condition
After the cure time, these simple habits help:
- Look for stains below bathrooms now and then
- Check trays and worktops don’t move
- Don’t wait for a small gap to become a leak
- Do not add new sealant on top of old
If the joint ever needs renewing, have it cut out, not sealed over. New silicone doesn’t bond to old.
Movement joints that have split let water into the structure, and left long enough, the edges of the joint can crumble. A joint with sound edges is far easier to reseal.
For landlords and businesses
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll quote.
What we do, step by step
Good joint work is mostly preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. In total, it normally takes a few hours for a typical bath or shower, longer where several layers have been applied. In a small place like Cottonworth, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- The failure is looked at first, so we know whether it’s sealant, movement or water from elsewhere.
- Each layer is cut out and the residue cleaned off.
- Mould is treated and the joint dried.
- We reseal with a product suited to the joint, backed where needed.
- The joint is tooled and you are told about anything else we found.
How to prepare
- Clear items away from the joints we’re working on
- Tell us about any water getting in
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
Want a quote for remedial sealant? Please phone 0345 464 0079 or send us an email and tell us about the job. We’ll explain what we’d do and send you a clear quote before any work starts.
Related advice
What we are called out for in Cottonworth
Movement tears sealant that isn’t designed for it. Flexing baths, rocking trays and building movement joints split any bead that’s too stiff or too thin.
The most common problems we see are:
- Smears and lumps from a botched reseal
- Black mould underneath the bead
- Movement joints that have split or pulled away
- Decorators’ caulk around a bath or shower
Rented homes near Andover station change hands often, and failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
What your quote should include
- What product goes in the joint
- How long to leave it before use
- Whether VAT is included
- Whether you can choose the colour
What the job involves on each surface
Leaking trays & enclosures
Where the joints are the problem, every bead is stripped and resealed with anti-fungal sanitary silicone, including the screen profile and tray edges.
Over-sealed & botched joints
A botched joint can hide two or three layers of sealant, and silicone residue is cleaned off the tiles too. New sealant needs a fully clean surface.