Hampshire · England
Remedial Sealant in Cowplain
Removing failed, mouldy or leaking sealant and putting it right for Cowplain, backed by a one-year guarantee. Call for a quick quote.
- Torn expansion joints
- Mould trapped under a layer of silicone
- Sealant applied over old sealant that has lifted
Landlord and commercial work in Cowplain
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will give you a quote.
Landlords and letting agents in Cowplain can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
Remedial sealant in Cowplain, done properly
Two decades of sealant work means we recognise most failures quickly. We’re fully insured ARBOMaster approved applicators, and every remedial job comes with a 12-month guarantee. If you have movement joints that have split or pulled away and thick, messy sealant smeared over tiles, we can help, on leaking tray & enclosure joints, failed movement joints and botched or over-sealed joints alike.
In a smaller place like Cowplain, homes are mostly houses and bungalows rather than flats, some older and some much newer. Bathrooms and kitchens here get the same daily wear as anywhere, and the sealant and grout show it first.
Every job is covered by a one-year guarantee.
- Location
- Cowplain (PO8, PO7)
- Region
- Hampshire
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What else we do in Cowplain
How the job changes by surface
Movement & expansion joints
A sealant stuck to the back of the joint can’t stretch. Backing stops that, so the sealant grips the two sides only.
Windows & doors
Frames resealed over the top end up with hard, layered mastic. All of it is cut out and the frame and wall cleaned before backing and resealing.
Remedial sealant around Cowplain
Most of the South East has hard water, which leaves limescale on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
Letting a property close to Rowlands Castle station? Then botched sealant from a previous quick fix is easier to strip out between tenants. For site and facilities teams at buildings such as Woodcroft Primary, 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.
Cowplain is about 1 mile south-west of Horndean, in Hampshire. Our applicators cover remedial sealant for homes and businesses in Cowplain, as part of our work across Hampshire. Our area takes in 683 places across Hampshire, from the larger towns to small villages. You can also see our page for Portsmouth, about 7 miles away.
Our applicators cover all of PO8 and PO7 for remedial sealant. Streets in the area include Milton Road, King's Road and London Road, all of which we cover. Other places close to Cowplain include Hart Plain (1 mile south-west), Waterlooville (1 mile south), Soake (1 mile west), Furzeley Corner (2 miles west) and Purbrook (2 miles south). Within a short drive, we also cover Gosport (9 miles south-west), Havant (3 miles south-east), Eastleigh (15 miles west), Fareham (8 miles south-west), Hedge End (12 miles west) and Petersfield (8 miles north-east).
Landmarks near Cowplain
Locally, jobs take us to homes and businesses close to The Cowplain School. For rail, the closest station is Rowlands Castle station, roughly 3 miles east. Other landmarks nearby include Havant Museum (3.9 miles south-east) and Havant War Memorial Hospital (3.5 miles south-east). Green spaces nearby include Windmill Hill and Southmoor Nature Reserve.
Quotes for remedial sealant in Cowplain
For a quick quote, just ask. The main things that affect it are:
- Whether there’s mould to deal with
- How much old sealant there is and how hard it is to remove
- How much there is to do
- Whether the work is at height
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
What we need to know
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- The rough size of the job
- Access, such as stairs, a lift or height
- Where the property is
- The problem you’ve noticed
For a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. You will have a clear quote before we start.
How the visit works
On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The work itself takes a few hours for most joints, depending on how much old sealant has to come out, including the tidy-up. In a smaller place like Cowplain, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- We start by checking the joint for movement, leaks and the reason it failed.
- We strip the joint completely, removing any layers below.
- The joint is cleaned, treated for mould and left to dry.
- Where the joint moves, backing and a flexible sealant suited to the movement go in.
- We tool the joint and tell you about anything else that needs attention.
How to prepare
- Mention any parking rules near the property
- Mention any sign-in or site rules at work premises
- Let us know about earlier repairs to the joints
Get a quote
Every job is quoted individually, so start by telling us what you need. Simply ring 0345 464 0079 or email us and describe the job and send pictures if you have them.
Advice
Aftercare tips
Simple care keeps the joints in good condition. Our advice:
- Never seal over old silicone
- Run the fan after every shower
- Never fill a movement joint with mortar or grout
- Get the cause of a repeat leak found before resealing
Give the new sealant its full cure time: normally around 24 hours, or as long as we advise.
If a joint has failed more than once, stop resealing it. Get the cause found first, otherwise the next attempt will fail too.
What we’re called out for in Cowplain
Joint depth matters. Sealant packed too deep, or stuck to the back of the joint as well as the sides, cannot stretch, and tears at the first real movement. Backing sets the depth and stops that.
The problems people usually mention when they call are:
- Decorators’ caulk around a bath or shower
- A shower that leaks however often it’s resealed
- Sealant that came away because the surface wasn’t prepared
- Worktop sealant that has shrunk and split
For an older house near a landmark such as The Hart Plain Church, older homes can move a little, which is hard on rigid grout and tired sealant.
Comparing quotes
- How long the guarantee is
- How long to leave it before use
- Whether you can choose the colour
- How the surfaces are prepared before sealing
Questions from Cowplain
I let a flat near Rowlands Castle station. Can you help?
Yes. We work for landlords and agents as well as homeowners, and several properties can be quoted together. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear quote.
Do you cover Cowplain for remedial sealant?
Yes. We work across London and the South East, and Cowplain is part of that. You can ring 0345 464 0079 or drop us an email and tell us what needs doing.
Do I have to be there?
That depends on where the joints are. For work indoors, someone needs to let us in.
What sealant do you use?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
What do you need from me for a quote?
Just the basics: where it is, what you’ve noticed and how we reach it. After that, simply phone 0345 464 0079 or drop us an email.
Do you remove the old sealant?
Yes. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator.
Where is Mr Mastic based?
Our base is in Crawley, West Sussex, and we work across South East England, London and Scotland.
What we can’t put right
We will not take on work that will not last, so here’s what sealant can’t put right:
- Tiles that have come away from the wall
- Movement from fittings that aren’t supported
- A tray or bath that’s cracked
If you’re not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer before you book.
Where we work in Cowplain
- Shrunken worktop sealant
- Expansion joints
- Leaking tray & enclosure joints
- Botched or over-sealed joints
- Failed movement joints
- Mouldy bath & shower sealant