Hampshire · England
Longstock Remedial Sealant
Removing failed, mouldy or leaking sealant and putting it right for Longstock, backed by a one-year guarantee. Call for a quick quote.
- Floor or wall movement joints that have failed
- Sealant that came away because the surface wasn’t prepared
- Black mould underneath the bead
Work for landlords, hotels and businesses
We also work for property managers and facilities teams in Longstock and across Hampshire. Several sites can be quoted together, and we are fully insured.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Remedial sealant for homes and businesses in Longstock
A joint that keeps failing generally has a reason. A tray that moves, a worktop that is not fixed, the wrong sealant or water getting in elsewhere will beat any new bead. Finding that cause comes before any new sealant. If you are dealing with mould trapped under a layer of silicone and worktop sealant that has shrunk and split, we can put it right, whatever the surface.
Somewhere as small as Longstock, homes tend to be cottages, farmhouses or converted buildings, with some newer houses too. Movement in older walls and floors tends to show first as cracked grout or split sealant.
Our work is backed for twelve months.
- Where
- Longstock (SO20)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026

Honest limits
It helps to know what we cannot do:
- A tray or bath that’s cracked
- Leaks from a shower valve, waste or pipework (a plumber’s job)
- Failed tanking or loose tiles behind the sealant
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly before booking.
Where we work in Longstock
- Failed movement joints
- Shrunken worktop sealant
- Botched or over-sealed joints
- Expansion joints
- Leaking tray & enclosure joints
- Mouldy bath & shower sealant
How it works
We bring everything the job needs with us, so you do not need to buy or prepare anything. After a quick look at the joints together, we protect the area and start. It normally takes a few hours, depending on how many layers have to come out. Somewhere as small as Longstock, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we find out how and where the joint has failed.
- All the old sealant comes out, including any layers underneath.
- 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.
- Finally we finish the joint and talk you through what we found.
How to prepare
- Keep pets and children clear of the area while we work
- Tell us about any previous sealing or DIY attempts
- Move anything stored near the joints
Ask for a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. Whenever you are ready, phone 0345 464 0079 or email us.
Advice
Common questions in Longstock
Is Longstock within the area you cover?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you take on hotel work around Longstock?
Yes, hospitality work, including hotels, is part of what we do. Jobs can be programmed room by room, with out-of-hours working possible to arrange.
Can you strip sealant from an acrylic tray safely?
Yes. Careful removal is most of a remedial job, particularly on softer surfaces like acrylic.
Can you take off two layers of silicone?
Yes. Each layer is cut out and the residue cleaned off, then the joint is resealed once.
What happens if the problem is the tray or the plumbing?
In that case, we tell you what we have found. You may need a plumber or bathroom fitter.
Can you reseal a split movement joint?
Yes. Backing sets the depth and stops the sealant sticking to the back.
I’m a tenant. Can you help?
Of course. Ask your landlord first, and we can send them the quote if that helps.
How long does the work take?
That depends on how many layers there are and how many joints. We will tell you before we start.
Common problems we fix in Longstock
Some joints fail because water is reaching them from behind. A leaking valve, a failed waste or cracked grout feeds water behind the bead, and the sealant lifts or goes mouldy from underneath.
Any of these means the joints need attention:
- Leaks that keep coming back after resealing
- Products that weren’t meant for the joint
- Mould trapped under a layer of silicone
- Worktop sealant that has shrunk and split
For site and facilities teams at buildings such as Test Valley School, its toilets, changing areas and kitchens need their sealant renewed like any other building’s.
What your quote should include
- What happens if they find a problem under the old sealant
- Whether they seal over old material or remove it
- Whether the sealant suits the joint
- How the surfaces are prepared before sealing
Towns and villages near Longstock
Also in Longstock
Longstock homes and their sealant
Most of the South East has hard water, so limescale builds up on sealant, grout and fittings. Longstock has hotels and guest accommodation nearby. Hotel bathrooms are part of our work as well as homes, and can be done room by room.
If you live in an older home near Church of St Mary, older homes can move a little, which is hard on rigid grout and tired sealant.
Longstock is about 5 miles south of Andover, in Hampshire. If you need remedial sealant in Longstock, it’s easy to get a quote: please ring 0345 464 0079 or send us an email. We’re based in Crawley and cover Hampshire, Longstock included. Longstock is one of 683 places in Hampshire where we work for remedial sealant. Our Southampton page covers work nearby, about 15 miles away.
Jobs for remedial sealant in SO20 is quoted and booked the same way as anywhere else. Neighbouring places we cover for remedial sealant include Leckford (1 mile east), Stockbridge (1 mile south), Fullerton (2 miles north-east), Cottonworth (2 miles north-east) and Chilbolton (3 miles north-east). We also work in nearby towns such as Winchester (9 miles south-east), Eastleigh (13 miles south-east), Andover (5 miles north), Totton (15 miles south), Chandler's Ford (11 miles south-east) and Romsey (10 miles south).
Near you in Longstock
Around Longstock, our work takes us to homes and buildings near Longstock Park and The Peat Spade Public House, among other places. Other landmarks nearby include Andover War Memorial Hospital (5.8 miles north). For a walk, there’s Mill Lake.
How we quote for remedial sealant
Call for a quick quote. What matters most is:
- How many areas need sealing
- Any working-time requirements on site
- The old material and how stubborn it is
- The number and length of the joints
What it costs depends on the amount of work, how much old material has to come out and access to the work. You will have a clear quote before any work starts, so you know where you stand.
What to tell us for a quote
Photos by email are helpful but not essential. Try to tell us:
- Where the job is, and your postcode
- What’s wrong with the joints now
- Whether it has been sealed before
- A few pictures by email, if you can
If you’re in Longstock and need remedial sealant, ring 0345 464 0079 or drop us an email. Tell us what the problem is and where, and we’ll agree the price before any work begins.
How the job changes by surface
Mouldy bath & shower sealant
Mould often spreads under the bead as well as through it. Once it’s all removed, the joint is treated so the new sealant starts clean.
Leaking trays & enclosures
Repeat shower leaks often come from a tray that flexes or an enclosure sealed in the wrong place. We check both before we reseal.
What happens if it’s left?
Spraying mould remover on a sealed-over joint doesn’t reach what’s underneath. The layers have to come out. Around Longstock, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
What you get with us
- Homes, businesses and hotels
- White, clear, grey or coloured to suit, where the product allows
- Sealant colour chosen to suit
- We are fully insured
Take a look at how sealant jobs are priced and our reviews.
