Oxfordshire · England
Headington Remedial Sealant
We cover Headington for removing failed, mouldy or leaking sealant and putting it right. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- A second bead peeling off the first
- Wide, uneven beads that look worse than the old ones
- Torn expansion joints
About our remedial sealant in Headington
The wrong product in the wrong joint won’t last, however tidy it looks. Out it comes, and in goes a sealant suited to the job. If you have beads that never stuck properly and products that weren’t meant for the joint, we can help, whatever the surface.
Around Headington, you will mostly find houses and bungalows, some older and some much newer. Bathrooms and kitchens here get the same daily wear as anywhere, and the sealant and grout show it first.
All of our work is guaranteed for twelve months.
- Where
- Headington (OX3)
- Wider area
- Oxfordshire
- Guarantee
- One year on every job
- Price
- A clear price before work begins
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Honest limits
To be straight with you, there are a few things sealant will not fix:
- Leaks from a shower valve, waste or pipework (a plumber’s job)
- A bath, tray or worktop that moves until it’s properly fixed
- Old mastic in a building from before 2000 that should be checked for asbestos before it’s disturbed
Not sure which it is? You can call 0345 464 0079 or drop us an email and we’ll tell you honestly.
What we seal
- Leaking tray & enclosure joints
- Mouldy bath & shower sealant
- Botched or over-sealed joints
- Expansion joints
- Failed movement joints
- Shrunken worktop sealant
What the job involves on each surface
Mouldy bath & shower sealant
Mould can sit behind the silicone, not just in it. We treat the exposed joint once the bead is out so the new sealant starts clean.
Worktops & kitchens
Kitchen joints often have grease and cleaning residue deep in them, so we spend extra time cleaning.
How to look after the new joints
Looking after new joints is easy:
- Run the fan after every shower
- Check ceilings under showers for marks
- Report a tray that rocks or a worktop that lifts
- Clean sealant with mild products only
Keep an eye on the joint at first, particularly where the original failure was caused by movement. If anything changes, just phone 0345 464 0079 or email us.
If a joint has failed more than once, stop resealing it. Get the cause found first, otherwise the next attempt will fail too.
Leave it or put it right?
It’s easy to scratch acrylic, enamel or an uPVC frame cutting out old sealant, and any film left behind stops new sealant sticking. Careful removal is most of a remedial job. In an older home around Headington, damp from a failed joint can get into timber and plaster, and that’s a much bigger job than renewing the sealant.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Why choose Mr Mastic in Headington
- We never seal over old sealant
- One-year guarantee on every job
- We’re fully insured
- Tidy, careful work
Headington homes and their sealant
Most of the South East has hard water, which leaves limescale on sealant, grout and fittings.
If you look after a building such as St Andrew's Church of England Primary School, washroom and kitchen sealant there needs the same care as at home, and schools and businesses are part of our work as well as homes. Homes close to St Andrew's Church include some older properties, and walls and floors in older homes can move, and sealant and grout show it first. Rented homes near Oxford station change hands often, and a joint that keeps failing is best fixed properly while the property is empty.
Headington is about 1 mile north-east of Oxford, in Oxfordshire. Jobs in Headington get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our Oxfordshire coverage runs to 443 places, and Headington is one of them.
Jobs for remedial sealant in OX3 works the same way as everywhere else we cover. If you need remedial sealant at a property on Upway Road, Osler Road and Beech Road or anywhere close by, our applicators can take on the job. Other places close to Headington include Northway (1 mile north-west), Headington Quarry (1 mile south-east), Headington Hill (1 mile south-west), New Marston (1 mile west) and Oxford (1 mile south-west). Within a short drive, we also cover Didcot (11 miles south), Bicester (10 miles north), Abingdon-on-Thames (7 miles south-west), Witney (12 miles west), Thame (10 miles east) and Wantage (15 miles south-west).
Around Headington
Locally, jobs take us to homes and businesses close to White Hart Inn, Bury Knowle Park and Cheney School. You’ll also find Headington Rye Oxford (0.7 miles south-west), English Faculty Library (1.6 miles west) and Holy Trinity Church (0.8 miles south-east). The nearest railway station is Oxford station, about 2.6 miles west. Nearby you will also find Rumble Museum (0.9 miles south-west) and Churchill Hospital (under half a mile west). Open spaces near Headington include CS Lewis Nature Reserve and Headington Hill.
What affects the quote in Headington
Call for a quick quote. What matters most is:
- The type of sealant required
- Mould in or behind the old joints
- The old material and how stubborn it is
- How easy the joints are to reach
Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you’re unsure, phone 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
What we need to know
To help us quote quickly, let us know:
- Where the property is
- Whether it has been sealed before
- Whether it’s a home or a business
- The rough size of the job
Asking for a quote is easy: let us know the job and the location. A few photos by email make the job easier to understand, and we will take it from there.
Work for landlords, hotels and businesses
We work for landlords and agents as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
Towns and villages near Headington
Also in Headington
FAQs for Headington
I let a flat near Oxford station. Can you help?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Will you come out to Headington?
Yes. Headington is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Are you ARBOMaster approved?
Yes. We’re approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
Do you fix expansion and movement joints?
Yes. The depth is set with backing so the sealant only bonds to the two sides, which lets it stretch.
Where do you work from?
Our base is in Crawley, and we cover South East England, London and all of Scotland.
What happens if the problem is the tray or the plumbing?
We will tell you. If it’s a cracked tray, a failed valve or a leaking waste, resealing won’t fix it, and we will not reseal for the sake of it.
Are you insured?
Yes, we’re fully insured.
When is the sealant fully cured?
Cure times vary by product and the conditions. We tell you how long to leave it before we go.
How it works
All our tools and materials come with us in the van, so there’s nothing for you to buy. Once we’ve agreed what’s being done, we protect the area and start. Most jobs take a few hours for a typical bath or shower, longer where several layers have been applied. Parking around Headington is normally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- We look at how the sealant has failed and check for movement or a leak path.
- 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.
- Finally we finish the joint and talk you through what we found.
Getting ready for the visit
- Mention any sign-in or site rules at work premises
- Where the joints are inside, avoid wetting them before we arrive
- Clear the area around the work
Getting a quote
Every job is quoted individually, so the first step is telling us about yours. Just call 0345 464 0079 or email us with the details, and pictures are welcome.