Hampshire · England
Remedial sealant & repairs in Charlton, Hampshire
Removing failed, mouldy or leaking sealant and putting it right for homes and businesses in Charlton and across Hampshire. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Movement joints that have split or pulled away
- Worktop sealant that has shrunk and split
- Sealant peeling off a dusty or damp surface
Remedial sealant around Charlton
There are hotels and other places to stay in and around Charlton. Hotel bathrooms are part of our work as well as homes, and can be done room by room. Most of the South East has hard water, which leaves limescale on sealant, grout and fittings.
For an older house near a landmark such as St Thomas, older homes can move a little, which is hard on rigid grout and tired sealant. For site and facilities teams at buildings such as Harrow Way Community School, we reseal washrooms and kitchens in schools and businesses as well as homes. Rented homes near Andover station change hands often, and a joint that keeps failing is best fixed properly while the property is empty.
Charlton is about 1 mile north-west of Andover, in Hampshire. Across the SP10 area, we cover remedial sealant for homes and businesses. Our Hampshire coverage runs to 683 places, Charlton among them. Our Southampton page covers work nearby (22 miles or so).
Every address in SP10 is within our area for remedial sealant, from the main roads to the quietest streets. Streets in the area include Dacre Close, Home Farm Gardens and Augustine Way, all of which we cover. Neighbouring places we cover for remedial sealant include Foxcotte (1 mile north-west), Penton Mewsey (1 mile west), Penton Corner (1 mile west), Penton Grafton (1 mile west) and Red Post Bridge (2 miles south-west). Within a short drive, we also cover Winchester (14 miles south-east), Hyde (13 miles south-east), Tidworth (7 miles west), Weeke (13 miles south-east), Stanmore (14 miles south-east) and Ludgershall (6 miles north-west).
Around Charlton
Locally, jobs take us to homes and businesses close to Portway Infant School. For rail, the closest station is Andover station, roughly 0.8 miles south-east. Other landmarks nearby include Andover War Memorial Hospital (0.5 miles south-east) and Andover Museum (1.3 miles south-east). For a walk, there’s Anton Lakes and Mill Lake.
Remedial sealant for homes and businesses in Charlton
If a joint has been resealed and is leaking again, it’s worth a proper look. It helps to have photos when you phone 0345 464 0079 or email us, along with when it was last resealed. If you have products that weren’t meant for the joint and dark patches showing through the sealant, we can help, whatever the surface.
In a village or hamlet like Charlton, homes are often older cottages and farmhouses alongside a few newer houses. Older walls and timber floors can move a little, and cracked grout and split sealant are often the first signs.
Big or small, it’s backed by our one-year guarantee in Charlton and across Hampshire.
- Location
- Charlton (SP10)
- Region
- Hampshire
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What else we do in Charlton
For landlords and businesses
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Failed sealant is one of the commonest items on a check-out report. Several properties can be quoted together.
Leave it or put it right?
It’s easy to scratch acrylic, enamel or an uPVC frame cutting out old sealant, and the residue left behind stops the next bead bonding. Careful removal is most of a remedial job. In a small place like Charlton, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part, and we will explain the quote if you ask.
Why choose Mr Mastic in Charlton
- Full insurance on every job
- A 12-month guarantee on all work
- A sealant colour to suit the surroundings
- You choose the colour before work begins
Take a look at how sealant jobs are priced or what customers say.
How the job changes by surface
Leaking trays & enclosures
A cracked tray, failed valve or leaking waste needs a different fix. We will tell you what we find.
Worktops & kitchens
Shrunken worktop sealant leaves a gap that lets water into the back edge. It’s cut out, degreased and resealed colour-matched to the worktop.
Keeping the joints in good condition
Simple care keeps the joints in good condition. We recommend:
- Report a tray that rocks or a worktop that lifts
- Run the fan after every shower
- Find out why the sealant failed first
- Do not point over movement joints
Where we have pointed out another fault, have it put right, because the new sealant can’t hold back a problem underneath.
A failing joint rarely gets better on its own. Every shower or downpour sends more water through, into whatever is behind or below. Sorting it early limits the damage.
What we do, step by step
Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes a few hours for a typical bath or shower, longer where several layers have been applied, and the area is left clean. Somewhere as small as Charlton, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- Surrounding tiles, trays and frames are protected first.
- The botched or failed sealant is cut away completely.
- The joint is degreased and checked for movement and leaks.
- Once dry, a suitable sealant is applied and tooled.
- You get the cure time and our view on why the joint failed.
Getting ready for the visit
- Mention any leaks or damp you’ve noticed
- Clear items away from the joints we are working on
- 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. Just ring 0345 464 0079 or send us an email with the details, and pictures are welcome.
Related advice
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
How we quote for remedial sealant
The quote reflects the job in front of us. We look at:
- Access and height
- Any working-time requirements on site
- Any mould that needs treating
- Whether old sealant or filler has to be cut out
What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before work begins.
What we need to know
You don’t need to know the technical terms. Just tell us:
- Pictures of the joints, sent by email
- Roughly how big the job is
- The problem you’ve noticed
- Any access issues, like height or stairs
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email photos if that is easy.
Common questions in Charlton
Can you help a landlord with a rental near Andover station?
Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Do you cover smaller places like Charlton?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is it messy?
No. The area is protected while we work and cleaned up afterwards.
What do you put in the joint?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Do you have insurance?
Yes. Full insurance covers our work.
Can you take off two layers of silicone?
Yes. We cut out all the layers and clean off the film, then the joint is resealed once.
Can you remove old sealant without damaging the bath?
Yes. Residue is removed with a product suited to the surface rather than scraped hard.
When is the sealant fully cured?
Cure times vary by product and the temperature. Before we leave, we will tell you the cure time.