Hampshire · England
Remedial Sealant in Long Sutton
Removing failed, mouldy or leaking sealant and putting it right for householders, landlords and businesses in Long Sutton. Fully insured, ARBOMaster approved and guaranteed for a year.
- Mould trapped under a layer of silicone
- Sealant applied over old sealant that has lifted
- Torn expansion joints
Remedial sealant in Long Sutton, done properly
A joint that keeps letting you down needs more than another bead. Send pictures when you call 0345 464 0079 or send us an email, along with when it was last resealed. We work on shrunken worktop sealant, botched or over-sealed joints and failed movement joints, and people most often call us about black mould underneath the bead and over-sealed joints coming away.
Being in a small place like Long Sutton makes no difference to the job itself: the journey and access are simply agreed in advance. Once we’re there, the bathroom or kitchen gets the same care as anywhere else.
Your job is guaranteed for a year, as with all our work.
- Location
- Long Sutton (RG29)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
DIY sealant or a professional job?
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
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.
Towns and villages near Long Sutton
What else we do in Long Sutton
What happens if it’s left?
Repeat failures have a cause. Taking time to find the cause, whether it’s movement, a leak or the wrong product, is what stops it happening again. Where a wall is exposed, as many are in small places like Long Sutton, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Leaving a failed joint usually makes the job bigger, not smaller. If you’re not sure whether it needs doing, phone 0345 464 0079 or send us an email for an honest opinion and a quote.
Why book with us
- A 12-month guarantee on all work
- Colour picked to suit the job
- Colour agreed with you before work begins
- Tidy, careful work
Take a look at how sealant jobs are priced or our reviews.
When to call us in Long Sutton
Some joints fail because water is reaching them from behind. A leaking valve, a failed waste or cracked grout feeds water behind the bead, so the silicone goes mouldy or lets go.
Look out for any of the following:
- A shower that leaks however often it’s resealed
- Movement joints that have split or pulled away
- Gaps opening along the back of the worktop
- Sealant that came away because the surface wasn’t prepared
If you look after a building such as Long Sutton Church of England Primary School, we reseal washrooms and kitchens in schools and businesses as well as homes.
Questions to ask before booking
- How hidden problems are handled
- Whether they seal over old material or remove it
- Is VAT in the price?
- What the cure time is
The process
The work is kept neat and contained to the area we’re working on. Expect the work to take a few hours for most joints, depending on how much old sealant has to come out, and we explain the cure time before we leave. Somewhere like Long Sutton needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- The failure is looked at first, so we know whether it’s sealant, movement or water from elsewhere.
- Old beads and residue are removed down to clean surfaces.
- We treat any mould and dry the joint thoroughly.
- 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.
Before we arrive
- Let us know about stairs, lifts or work at height
- Mention any sign-in or site rules at work premises
- Keep children and pets away from the work area
How to get a quote
Need a quote? Please ring 0345 464 0079 or drop us an email and tell us about the job. We will explain what we’d do and give you a clear quote before we start.
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What remedial sealant looks like in Long Sutton
Most of the South East has hard water, so limescale builds up on sealant, grout and fittings.
For an older house near a landmark such as Church of All Saints, older homes can move a little, which is hard on rigid grout and tired sealant. For landlords with property near Bentley (Hampshire) station, failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
Long Sutton is about 5 miles north of Alton, in Hampshire. For remedial sealant in and around Long Sutton, please ring 0345 464 0079 or email us for a quick quote. We are based in Crawley and cover Hampshire. Long Sutton is one of 683 towns and villages in Hampshire we cover for remedial sealant. You can also see our page for Reading, roughly 16 miles from Long Sutton.
Postcode districts we cover here for remedial sealant: RG29. We cover properties on The Street, Wingate Meadow and Wingate Lane. We also cover South Warnborough (1 mile west), Well (1 mile east), Bidden (2 miles west), Odiham (2 miles north) and Little Hoddington (2 miles west). Larger places within reach include Basingstoke (8 miles north-west), Farnborough (9 miles north-east), Fleet (6 miles north-east), Aldershot (8 miles east), Alton (5 miles south) and Petersfield (15 miles south).
Around Long Sutton
We work in homes and buildings around Lord Wandsworth College and Robert May's School. For rail, the closest station is Bentley (Hampshire) station, about 4.2 miles south-east of the centre. Well-known places in the area include Odiham Castle (3 miles north) and Alton Community Hospital (5.8 miles south). Not far away are Dogmersfield Lake and Holybourne Hill.
Different surfaces, different methods
Windows & doors
Failed frame mastic is often hard, cracked and in several layers. We remove it all and clean back to sound surfaces before backing and resealing.
Movement & expansion joints
Some movement joints have been filled with mortar or grout. Where it can be raked out, we replace it with flexible sealant.
Landlord and commercial work in Long Sutton
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can go on one quote.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
How to look after the new joints
So the new joints stay in good condition:
- Keep bleach and abrasives off the bead
- Air the bathroom so the sealant can dry
- Check trays and worktops do not move
- Ask why a joint failed before redoing it
Give the new sealant its full cure time: follow the cure time we give you.
Warning signs: sealant lifting at the ends, a second bead visible on top of the first, black mould under the silicone, or stains below a bathroom. Any of them means it’s time for remedial work.
Long Sutton questions
Do you work for landlords with property near Bentley (Hampshire) station?
Yes, we work for landlords and letting agents. You can call 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before work begins.
Will you come out to Long Sutton?
Yes. Long Sutton is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
What do you need from me for a quote?
The location, the problem and the rough size of the job. If you can, email a few photos.
Where is Mr Mastic based?
Our base is Crawley. We work across South East England, London and Scotland.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Will it make a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Can you remove old sealant without damaging the bath?
Yes. We avoid heavy scraping and use the right cleaner for each surface, so the new sealant bonds cleanly.
What does remedial sealant cost?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote.