Oxfordshire · England
Mongewell Remedial Sealant
Problem with your failed sealant joints in Mongewell? We cut out the old, prepare the joints and apply the right sealant.
- Dark patches showing through the sealant
- Repeat leaks from the same joint
- Thick, messy sealant smeared over tiles
Remedial sealant in Mongewell, done properly
Water on the floor does not always mean failed silicone. Cracked trays, leaking wastes and faulty valves often look like a sealant problem. When the fault is elsewhere, we say so instead of resealing for the sake of it. Typical jobs include wide, uneven beads that look worse than the old ones and movement joints that have split or pulled away, on failed movement joints, botched or over-sealed joints and shrunken worktop sealant.
In a village or hamlet like Mongewell, 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.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Where
- Mongewell (OX10)
- Region
- Oxfordshire
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Why act early in Mongewell
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 stripping is where most of our time goes. In a small place like Mongewell, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Why Mongewell customers choose us
- We are fully insured
- You choose the colour before work begins
- 180+ five-star Google reviews
- An ARBOMaster approved applicator
Take a look at how sealant jobs are priced or customer reviews.
Places near Mongewell
More services for Mongewell
Common problems we fix in Mongewell
A lot of failed joints have been sealed over rather than replaced. New silicone cannot stick to the old bead, so the top layer lifts and water and mould collect between the two.
Keep an eye out for any of the following:
- Over-sealed joints coming away
- Decorators’ caulk around a bath or shower
- Leaks that keep coming back after resealing
- Worktop sealant that has shrunk and split
Rented homes near Cholsey station change hands often, and failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
Before booking anyone
- Is the old sealant removed completely?
- How long the guarantee is
- Whether they’re fully insured
- What product goes in the joint
The process
A visit follows a simple pattern: we check the joints, protect the area around them, do the work and tidy away. Most jobs take a few hours, depending on how many layers have to come out. Somewhere as small as Mongewell, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
- Mould is treated and the joint dried.
- We reseal with a product suited to the joint, backed where needed.
- We finish neatly and point out anything that needs another trade.
Preparing for the visit
- Tell us if parking is tricky
- Move anything stored near the joints
- On commercial sites, let us know about site rules
How to get a quote
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we’ll talk you through the work before giving you a price.
Related advice
Should I try it myself first?
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.
If you’ve already had a go yourself, that’s fine. We cut it out and start again.
Questions from Mongewell
Will you come out to Mongewell?
Yes. Mongewell is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you cover Mongewell for remedial sealant?
Yes, Mongewell is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job.
Are you ARBOMaster approved?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Do I need to be at home?
If the work is inside, we need someone to let us in. Once we’ve agreed the job, you do not need to watch us work.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we’ll tell you what we’re using.
Can old silicone be taken off without scratching the tiles?
Yes. The old bead is cut and lifted with tools that suit the surface, then clean off the residue. Any existing damage is pointed out before any work starts.
Can I add another job to the visit?
Yes, and it often makes sense. Doing several areas at once is normally more efficient.
Do the sealants smell?
Some sealants have a smell while they cure, but it fades. Opening a window helps.
Mongewell homes and their sealant
Most of the South East has hard water, which leaves limescale on sealant, grout and fittings.
In the older streets around St Mary's Church, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant. Managing a site like Crowmarsh Gifford Church of England School? Then we reseal washrooms and kitchens in schools and businesses as well as homes.
Mongewell is about 6 miles east of Didcot, in Oxfordshire. We carry out remedial sealant for homeowners, landlords and businesses in Mongewell and nearby, as part of our work across Oxfordshire. Mongewell is one of 443 places in Oxfordshire we cover for remedial sealant. Our Reading page covers work nearby.
We cover every part of OX10 for remedial sealant. You’ll find streets such as Hasthorpe Road, Shuttleworth Close and Elizabeth Road, all of which we cover. Other places close to Mongewell include Newnham Murren (1 mile north), Crowmarsh Gifford (1 mile north-east), Winterbrook (1 mile south-west), North Stoke (1 mile south) and Cholsey (2 miles south-west). We also work in nearby towns such as Oxford (12 miles north-west), Didcot (6 miles west), Abingdon-on-Thames (9 miles north-west), Thame (12 miles north-east), Wantage (13 miles west) and Henley-on-Thames (10 miles south-east).
Landmarks near Mongewell
Locally, jobs take us to homes and businesses close to Wallingford School, Wallingford School and The Old Nags Head pub, among other places. Mongewell’s nearest station is Cholsey station, about 2.2 miles south-west. Other landmarks nearby include Wallingford Castle (0.9 miles north). Green spaces nearby include Wittenham Clumps and Cholsey Marsh.
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. A few tips:
- Ask why a joint failed before redoing it
- Never fill a movement joint with mortar or grout
- Don’t wait for a small gap to become a leak
- Report a tray that rocks or a worktop that lifts
Clean gently: no scraping, scouring pads or harsh chemicals.
A split movement joint lets rain into walls and floors, and the longer it’s left, the more the joint edges break down. Resealing while the edges are sound is simpler.
What we can’t put right
New sealant cannot fix everything, and we’d rather say so up front. It will not solve:
- A tray or bath that’s cracked
- Plumbing leaks behind walls or under trays
- Old mastic in a building from before 2000 that should be checked for asbestos before it’s disturbed
If you are not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer.
Where we work in Mongewell
- Failed movement joints
- Shrunken worktop sealant
- Mouldy bath & shower sealant
- Expansion joints
- Leaking tray & enclosure joints
- Botched or over-sealed joints
For landlords and businesses
For anyone letting property in or around Mongewell, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.