Oxfordshire · England
Remedial sealant & repairs in Northmoor, Oxfordshire
Removing failed, mouldy or leaking sealant and putting it right for homes and businesses in Northmoor and across Oxfordshire. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Smears and lumps from a botched reseal
- Kitchen joints letting water behind the worktop
- Leaks that keep coming back after resealing
Should I try it myself first?
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
Remedial sealant in Northmoor, done properly
Removing failed sealant is the hardest part of the job. Every layer is cut out, the residue cleaned off and the joint degreased, without scratching tiles, trays or frames. Only then can new sealant bond. We work on mouldy bath & shower sealant, failed movement joints and botched or over-sealed joints, and the jobs we see most are kitchen joints letting water behind the worktop and a second bead peeling off the first.
Around Northmoor, it’s houses and cottages rather than flats, some with bathrooms tucked into older rooms or extensions. Sealant and grout wear out here just as they do anywhere: everything old comes out before the new sealant or grout goes in.
All our work comes with our one-year guarantee.
- Place
- Northmoor (OX29)
- Region
- Oxfordshire
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Surface by surface
Movement & expansion joints
Some movement joints have been filled with mortar or grout. Where it can be raked out, we replace it with flexible sealant.
Windows & doors
Frames resealed over the top end up with hard, layered mastic. All of it is cut out and the frame and wall cleaned before backing and resealing.
FAQs for Northmoor
What guarantee comes with remedial sealant in Northmoor?
All our work, in Northmoor and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
Can you do remedial sealant in Northmoor?
Yes. Our work covers London and the South East, and Northmoor is part of that. You can ring 0345 464 0079 or send us an email and tell us what needs doing.
Can old silicone be taken off without scratching the tiles?
Yes, with care. The old bead is cut and lifted with tools that suit the surface, then clean off the residue. We point out any damage that is already there.
I’m a tenant. Can you help?
Of course. Ask your landlord first, and we can send them the quote if that helps.
Someone resealed my shower and it’s leaking again. Can you help?
Yes. All the sealant comes out, we find out why it failed, and the joint is resealed properly.
Will it make a mess?
No. The area is protected while we work and cleaned up afterwards.
Can failed expansion joints be resealed?
Yes. Failed movement joints are cut out and resealed with backing and a flexible sealant suited to the movement.
How long should I leave it?
It depends on the product. Before we leave, we’ll tell you the cure time.
Nearby places to Northmoor
What else we do in Northmoor
Why deal with it now?
Stripping out botched sealant adds time to a reseal, but not by much: the work takes a few hours for most joints, depending on how much old sealant has to come out. Compared with chasing the same leak every few months, it’s time well spent. Older cottages and farmhouses around Northmoor can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference.
What you get with us
- We agree the colour with you first
- 12-month guarantee on every job
- Domestic, commercial and hotel work
- Any old sealant cut out fully, not covered over
Take a look at what affects the cost or our reviews.
Honest limits
Sealant isn’t the answer to every problem, and we will tell you before we start. It will not solve:
- Failed tanking or loose tiles behind the sealant
- Old mastic in a building from before 2000 that should be checked for asbestos before it’s disturbed
- Plumbing leaks behind walls or under trays
If in doubt, ring 0345 464 0079 or send us an email and we will say what we think.
Surfaces we seal
- Mouldy bath & shower sealant
- Failed movement joints
- Shrunken worktop sealant
- Expansion joints
- Botched or over-sealed joints
- Leaking tray & enclosure joints
Northmoor homes and their sealant
Most of the South East has hard water, so limescale builds up on sealant, grout and fittings.
For an older house near a landmark such as Church of St Denys, older homes can move a little, which is hard on rigid grout and tired sealant.
Northmoor is about 6 miles north-west of Abingdon-on-Thames, in Oxfordshire. Wherever you are in the OX29 postcode area, we cover remedial sealant for homes and businesses. Northmoor is one of 443 places in Oxfordshire where we work for remedial sealant. We also work in Oxford, about 7 miles from Northmoor.
Every address in OX29 is covered for remedial sealant. We cover properties on Chapel Lane and Bints Place. If you’re just outside Northmoor, we cover Appleton (2 miles south-east), Sutton (2 miles north), Cumnor (3 miles east), Filchampstead (3 miles north-east) and Farmoor (3 miles north-east). We also work in nearby towns such as Oxford (7 miles east), Didcot (10 miles south-east), Abingdon-on-Thames (6 miles south-east), Witney (6 miles north-west), Carterton (9 miles west) and Wantage (9 miles south).
What’s near Northmoor
In Northmoor, that means homes and buildings near The Red Lion Public House and the streets around them. A little further out are Abingdon Community Hospital (5.4 miles south-east) and Hinton Waldrist Castle (3.7 miles south-west). Not far away are Hitchcopse Pit and Cumnor Hill.
Common problems we fix in Northmoor
Movement tears sealant that isn’t designed for it. A bath that flexes, a tray that rocks or a building joint that opens and closes will split a rigid or thin bead.
These are the problems we are asked about most:
- Wide, uneven beads that look worse than the old ones
- Worktop sealant that has shrunk and split
- Mould trapped under a layer of silicone
- Sealant that came away because the surface wasn’t prepared
In and around Northmoor, as anywhere, good remedial sealant starts with a clean, dry, properly prepared joint.
Before you book anyone
- What the quote includes, VAT included or not
- How the surfaces are prepared before sealing
- Whether you can choose the colour
- When the joint can take water or movement
What happens on the day
You do not need to clear the whole room or building before we come, only the area right around the joints. Everything nearby is protected, and the work takes a few hours for most joints, depending on how much old sealant has to come out for a typical job. Somewhere like Northmoor needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We start by checking the joint for movement, leaks and the reason it failed.
- We strip the joint completely, removing any layers below.
- Next, any mould is treated and the joint dried.
- 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
- For business premises, tell us about site rules or sign-in
- Mention any leaks or damp you’ve noticed
- Mention any parking rules near the property
Ask for a quote
Want a quote for remedial sealant? Please call 0345 464 0079 or drop us an email with a few details. We’ll explain what we’d do and give you a clear quote before we start.
Related advice
How we quote for remedial sealant
You will get a clear quote before work begins. It takes into account:
- How many areas need sealing
- When we can work, for business premises
- How much old sealant there is and how hard it is to remove
- The size of the job
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
What we need to know
Photos help, but a description is a good start. Please mention:
- The rough size of the job
- Photos by email, if that is easy
- Where the job is, and your postcode
- The type of property
It all starts with a short chat. Describe the problem, the location and the size of the job. Whenever you are ready, phone 0345 464 0079 or send us an email.