Oxfordshire · England
Souldern New Build Mastic
New build mastic for Souldern and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Cracks appearing as a new home settles
- Skirting joints opening in the first winter
- Internal frame sealant that has split
New build mastic in Souldern
If your new home has a leaking shower seal, open skirting joints or untidy sealant, we can help. If you’re still within the builder’s snagging or warranty period, tell them first, and if it isn’t put right, get in touch with us. We work on skirting & floors, plot handovers and bathrooms & en suites, and common reasons people get in touch are messy sealant that spoils new finishes and gaps behind new kitchen upstands.
In a village or hamlet like Souldern, new homes are more likely to be a barn conversion or a handful of houses than a big estate. Every one needs its sealant and floor joints done properly, whatever the size of the site.
You are covered for a year from the day we finish. If anything is not right with it, ring 0345 464 0079 or send us an email.
- Location
- Souldern (OX27)
- Wider area
- Oxfordshire
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Common questions in Souldern
I let a flat near Kings Sutton station. Can you help?
Yes, we work for landlords and letting agents. You can phone 0345 464 0079 or send 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 Souldern?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Does someone need to be in?
It depends on the job. Inside work needs someone to give us access.
Is it worth resealing while the house is still settling?
It depends on whether water is getting through. A leaking shower or bath seal should be redone right away, while small cosmetic gaps can wait a while.
Can you match the sealant colour to my new kitchen or bathroom?
It depends on the joint: white or clear in most bathrooms, and a colour to suit worktops, frames and floors elsewhere. We will agree it with you first.
My new home is still under warranty. Should I contact you?
While the snagging or warranty period runs, the builder should be your first contact. If they’re slow or the fix doesn’t last, we can help.
Do you take out the old sealant first?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Where is Mr Mastic based?
We’re a Crawley-based firm. We work across South East England, London and Scotland.
How it works
Before we leave, we go over the finished joints with you. The visit itself generally takes a few hours for most snagging lists, longer for a run of plots, depending on the amount of work. Somewhere as small as Souldern, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by going through the snagging items or plot schedule with you.
- Every bit of the old builder’s sealant is cut out.
- We clean out the dust and grit left from the build.
- Primer goes on where the surface and product need it, then the new sealant.
- Each bead is tooled and the cure times explained.
Getting ready for the visit
- Tell us if parking is tricky
- For business premises, tell us about site rules or sign-in
- Move anything stored near the joints
Getting a quote
To get a quote, phone 0345 464 0079 or email us with the location and a short description of the problem. You’ll have a clear quote before any work starts.
Read more
What happens if it’s left?
Sealant done properly at handover means fewer callbacks. Every return visit for a failed seal takes time and most come down to preparation. Around Souldern, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
What you pay reflects the work, not guesswork. That is why we ask a few questions first.
What you get with us
- Any old sealant cut out fully, not covered over
- 20+ years of sealant experience
- Full insurance on every job
- We leave the area clean and tidy
Read our cost guide and our reviews.
Should I try it myself first?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
If you’ve already had a go yourself, that is fine. We cut it out and start again.
Aftercare tips
Aftercare is simple, and it makes a real difference:
- Wipe joints with warm soapy water
- Look at the sealant regularly in the first couple of years
- Photograph failed sealant before it’s redone
- Raise failed sealant with the developer while you’re covered
Do not stand on the bath edge or the lip of the tray while the sealant cures. If a bath or tray moves when you stand in it, get it looked at.
Mould takes hold quickly in sealant that has gaps or lifted edges. Resealing before mould gets in keeps the job straightforward.
Joints and finishes in Souldern homes
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
In and around Souldern, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Souldern is in Oxfordshire. Jobs in Souldern 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 Souldern is one of them. We also work in Oxford, around 16 miles away.
All of OX27 is within our area for new build mastic, from the main roads to the quietest streets. We cover properties on High Street, Foxhill Lane and Fox Lane. Other places close to Souldern include Fritwell (1 mile south), Clifton (2 miles west), Somerton (2 miles south-west) and Fewcott (3 miles south-east). We also work in nearby towns such as Banbury (7 miles north-west), Bicester (6 miles south-east), Kidlington (11 miles south), Headington Quarry (15 miles south), Bure Park (6 miles south-east) and Chipping Norton (13 miles west).
Landmarks near Souldern
We work in homes and buildings around The Fox pub. The closest station to Souldern is Kings Sutton station, roughly 3.4 miles north-west of the centre. Well-known places in the area include Brackley Community Hospital (5.5 miles north-east) and Ardley Castle (2.7 miles south-east).
What we’re called out for in Souldern
Sealant is often one of the last jobs before handover. Joints aren’t always cleaned of dust or primed, so the bead never bonds properly.
Common reasons people contact us are:
- Cracks appearing as a new home settles
- Messy sealant that spoils new finishes
- Leaking shower tray seals in a new home
- Second-fix sealing on new plots
For new homes near Kings Sutton station, it’s worth checking the sealant early, while snags are still fresh.
Before you book anyone
- How long the guarantee is
- What happens if the job turns out different
- Whether you can choose the colour
- What the quote includes, VAT included or not
Also in Souldern
What sealant work can’t fix
We will not take on work that won’t last, so here’s what sealant cannot put right:
- Settlement cracks that need a surveyor
- Baths and trays that move too much for sealant to cope with
- Broken tiles or a split tray
If you’re not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer.
Surfaces we seal
- Skirting & floors
- Show homes
- Plot handovers
- Bathrooms & en suites
- Windows & doors
- Kitchens
What affects the cost of new build mastic
We don’t publish a price list, because jobs vary so much. The quote depends on:
- Mould in or behind the old joints
- When we can work, for business premises
- The number of rooms or windows
- The type of sealant required
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What we need to know
To make quoting easier, let us know:
- If it’s domestic, commercial or a hotel
- Whether it has been sealed before
- How many joints, rooms or windows are involved
- The problem you’ve noticed
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. When it suits you, ring 0345 464 0079 or drop us an email.