Oxfordshire · England
Alkerton Remedial Sealant
Removing failed, mouldy or leaking sealant and putting it right for homeowners, landlords and businesses in Alkerton. Fully insured, ARBOMaster approved and guaranteed for a year.
- Decorators’ caulk around a bath or shower
- Floor or wall movement joints that have failed
- Kitchen joints letting water behind the worktop
How we quote for remedial sealant
You’ll get a clear quote before any work starts. It takes into account:
- How many rooms, windows or areas are involved
- How much old sealant there is and how hard it is to remove
- Any mould that needs treating
- Any working-time requirements on site
Doing several joints on one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
What we need to know
What to tell us when you ask for a quote:
- The type of property
- Access, such as stairs, a lift or height
- What the problem is, such as mould, gaps, leaks or cracking
- The rough size of the job
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand, and we will come back to you with a quote.
Remedial sealant in Alkerton, done properly
In Alkerton, as anywhere, remedial jobs tend to look alike: sealant over sealant, mould under the bead, leaks that come back and movement joints that have split. Each is stripped back and done again properly. We work on shrunken worktop sealant, expansion joints and leaking tray & enclosure joints, and common reasons people get in touch are decorators’ caulk around a bath or shower and movement joints that have split or pulled away.
Somewhere as small as Alkerton, 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.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.

- Place
- Alkerton (OX15)
- Region
- Oxfordshire
- Cover
- A year, on every job
- Quotes
- A clear price before we start
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
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, so the joint can be treated and resealed. In a small place like Alkerton, 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 make a difference.
Why choose Mr Mastic in Alkerton
- Any old sealant cut out fully, not covered over
- Homes, businesses and hotels
- We’re fully insured
- 180+ five-star Google reviews
Places near Alkerton
More services for Alkerton
What we do, step by step
At the end, we look at the finished work together and explain the cure time. The work normally takes a few hours, depending on how many layers have to come out, depending on the amount of work. Somewhere like Alkerton needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First we find out how and where the joint has failed.
- We strip the joint completely, removing any layers below.
- We clean the joint, treat any mould and let it dry.
- We use the right backing and sealant for any joint that moves.
- Finally we finish the joint and talk you through what we found.
Before we arrive
- Keep pets and children clear of the area while we work
- Tell us about access, such as stairs, a lift or high-level joints
- Let us know about parking restrictions
Getting a quote
Every job is quoted individually. Just call 0345 464 0079 or email us with the details and send pictures if you have them.
Advice
Can I do it myself?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Don’t point over movement joints
- Look for stains below bathrooms now and then
- Keep bleach and abrasives off the bead
- Run the fan after every shower
Keep an eye on the joint at first, especially if movement was the problem. If anything changes, just phone 0345 464 0079 or email us.
Movement joints that have split let water into the structure, and left long enough, the edges of the joint can crumble. Resealing while the edges are sound is simpler.
Work for landlords, hotels and businesses
Housing providers, facilities teams and property managers book us too in Alkerton and across Oxfordshire. Several sites can go on one quote.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Surface by surface
Worktops & kitchens
Old kitchen sealant pulls back from the wall over time. It’s cut out, degreased and resealed colour-matched to the worktop.
Over-sealed & botched joints
A botched joint can hide two or three layers of sealant, including the smears and film on surrounding tiles. Only a clean joint will take a new bead.
Remedial sealant in Alkerton: local notes
Most of the South East has hard water, which leaves limescale on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
Schools such as Shenington Church of England Primary School are buildings too, and its toilets, changing areas and kitchens need their sealant renewed like any other building’s. For an older house near a landmark such as Church of St Michael, older homes can move a little, which is hard on rigid grout and tired sealant.
Alkerton is about 5 miles west of Banbury, in Oxfordshire. Our applicators cover remedial sealant for householders, landlords and businesses in Alkerton and nearby, as part of our work across Oxfordshire. 443 places in Oxfordshire are on our list, from the larger towns to small villages. We also work in Oxford, about 25 miles from Alkerton.
Every address in OX15 is within our area for remedial sealant. We also cover the places around Alkerton: Shenington (1 mile west), Balscote (1 mile south-east), Shutford (2 miles south), Epwell (2 miles south-west) and Swalcliffe (3 miles south). Within a short drive, we also cover Banbury (5 miles east), Chipping Norton (11 miles south-west), Neithrop (4 miles east), Grimsbury (6 miles east), Ruscote (4 miles east) and Bloxham (5 miles south-east).
Local landmarks in Alkerton
We work in homes and buildings around The Bell Inn, among other places. Well-known places in the area include Hanwell Castle (3.7 miles east) and W. O. Bentley Memorial Foundation (1.8 miles east). Not far away are Edge Hill and Woodford Bottom and Lamb's Pool.
Alkerton questions
Can you do remedial sealant in Alkerton?
Yes, Alkerton is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or email us and let us know what needs doing.
Is remedial sealant in Alkerton guaranteed?
Every job comes with our one-year guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that usually means someone at home.
I’m a tenant. Can you help?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. Working times can be discussed when we quote.
What if resealing won’t fix my leak?
We check for that before we reseal. If the fault is elsewhere, you will know before any work is done.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We’ll tell you what we’re using and why.
Can you reseal a split movement joint?
Yes. Failed movement joints are cut out and resealed with backing and a flexible sealant suited to the movement.
