Hampshire · England
Remedial Sealant in Oakhanger
Our applicators work in Oakhanger on removing failed, mouldy or leaking sealant and putting it right. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Beads that never stuck properly
- Movement joints that have split or pulled away
- Mould trapped under a layer of silicone
About our remedial sealant in Oakhanger
Movement and expansion joints fail when the sealant cannot stretch. We cut out the failed sealant and set the depth with backing, before resealing with a flexible product suited to the movement. If you are dealing with thick, messy sealant smeared over tiles and floor or wall movement joints that have failed, we can help, whatever the surface.
Somewhere as small as Oakhanger, 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 Oakhanger and across Hampshire.
- Place
- Oakhanger (GU35)
- Wider area
- Hampshire
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Aftercare tips
No joint lasts for ever, but care makes a real difference. Our tips:
- Run the fan after every shower
- Ask why a joint failed before redoing it
- Keep an eye on the ceiling below the bathroom
- Don’t wait for a small gap to become a leak
Keep the room ventilated: use the extractor or open a window after showering.
Mould trapped under over-sealed joints spreads unseen. When it finally shows, the whole bead needs to come out.
Why it’s worth doing now in Oakhanger
Adding more sealant is the usual quick fix, and it rarely works. It does not grip the old layer, so the leak carries on and there’s now more to remove. Older cottages and farmhouses around Oakhanger can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Doing several joints on one visit normally makes better use of the time than several visits. You will get one clear quote for the whole job.
Why choose Mr Mastic in Oakhanger
- We leave the area clean and tidy
- Colour picked to suit the job
- We never seal over old sealant
- 4.9 on Google from 180+ five-star reviews
See what affects the cost or our reviews.
Your questions about remedial sealant in Oakhanger
Do you work for landlords with property near Alton station?
Yes, we work for letting agents and landlords. You can phone 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before work begins.
Is Oakhanger in your area for remedial sealant?
Yes, Oakhanger is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear quote.
Will you leave a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
What if the leak is not the sealant?
In that case, we tell you what we’ve found. A plumber or fitter may be needed.
Do the sealants smell?
There can be a smell while the sealant cures, but it fades. Opening a window helps.
Can I choose the sealant colour?
In most cases you can choose. We will tell you which colours the right product comes in.
Do you have insurance?
Yes. We’re fully insured, and we have been doing sealant work for more than 20 years.
Are you an approved applicator?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
What we cannot put right
We won’t take on work that won’t last, so these are the limits:
- Water damage behind tiles that needs a tiler
- A tray or worktop that needs refixing first
- Sealant in an older building that needs testing for asbestos first
If you’re not sure, just ring 0345 464 0079 or email us and we’ll give you a straight answer before you book.
What we seal
- Mouldy bath & shower sealant
- Failed movement joints
- Botched or over-sealed joints
- Shrunken worktop sealant
- Expansion joints
- Leaking tray & enclosure joints
The process
We bring everything the job needs with us, 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. Most jobs take a few hours for most joints, depending on how much old sealant has to come out. In a small place like Oakhanger, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking the joint for movement, leaks and the reason it failed.
- Every layer of old sealant is cut and cleaned out.
- We clean the joint, treat any mould and let it dry.
- Moving joints get backing and a flexible sealant to suit.
- The new joint is tooled neatly and we explain anything else we found.
How to prepare
- Let us know about earlier repairs to the joints
- Where the joints are inside, avoid wetting them before we arrive
- Let us know if you’ve seen damp or leaks
Get a quote
We quote each job on its own, so the first step is telling us about yours. Just call 0345 464 0079 or email us with the details, and pictures are welcome.
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What the job involves on each surface
Windows & doors
A frame that keeps leaking may not be the mastic. We check the joint and tell you if it looks to be something else.
Worktops & kitchens
Old kitchen sealant pulls back from the wall over time. We strip it, degrease the joint and reseal colour-matched to the worktop.
Bathrooms and kitchens in Oakhanger
Hard water is the norm across most of the South East, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
Managing a site like Mill Chase Academy? Then we reseal washrooms and kitchens in schools and businesses as well as homes. If you let a flat or house near Alton station, botched sealant from a previous quick fix is easier to strip out between tenants. In the older streets around St Mary Magdalene's Church, timber floors under older bathrooms flex, so joints need a sealant that moves with them.
Oakhanger is about 4 miles south-east of Alton, in Hampshire. Whether you are in the middle of Oakhanger or further out, remedial sealant is available for homes and businesses alike, from flats and houses to offices and hotels. Our area takes in 683 places across Hampshire. We also work in Portsmouth, around 23 miles away.
Jobs for remedial sealant in GU35 works the same way as everywhere else we cover. Close by, we work in Hartley Mauditt (2 miles west), East Worldham (2 miles north-west), Wyck (3 miles north), Upper Farringdon (3 miles west) and Neatham (4 miles north-west). Within a short drive, we also cover Basingstoke (13 miles north-west), Farnborough (14 miles north-east), Fleet (11 miles north), Horndean (15 miles south), Aldershot (11 miles north-east) and Alton (4 miles north-west).
What’s near Oakhanger
The nearest railway station is Alton station, roughly 3.8 miles north-west. A little further out are The Romany Museum (2.1 miles south-west) and Chase Community Hospital (1.9 miles east). Open spaces near Oakhanger include Selborne Hill and Deadwater Valley.
DIY versus a professional finish
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Places near Oakhanger
What else we do in Oakhanger
Landlords, agents and businesses in Oakhanger
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can be quoted together.