Oxfordshire · England
Hethe New Build Mastic
Plot mastic for developers and snagging failed sealant in new homes in Hethe, with a one-year guarantee on every job. Call for a quick quote.
- Sealant that never bonded to the surface
- Gaps between new skirting and floors
- Kitchen sealant that has pulled off the wall
New homes and floors in Hethe
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
In and around Hethe, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Hethe is about 4 miles north of Bicester, in Oxfordshire. Our applicators cover new build mastic for homes and businesses in Hethe and nearby, as part of our work across Oxfordshire. 443 places in Oxfordshire are on our list, large and small. For nearby work, see our Oxford page (15 miles or so).
Every address in OX27 is covered for new build mastic. Streets in the area include Main Street and Hardwick Road. If you are just outside Hethe, we cover Fringford (1 mile south-east), Hardwick (1 mile west), Stoke Lyne (2 miles south-west), Stratton Audley (2 miles south-east) and Caversfield (3 miles south). Within a short drive, we also cover Oxford (15 miles south), Banbury (11 miles north-west), Bicester (4 miles south), Kidlington (12 miles south-west), Headington Quarry (14 miles south) and Bure Park (4 miles south).
Local landmarks in Hethe
We work in homes and buildings around Whitmore Arms Public House. Hethe’s nearest station is Bicester North station, roughly 4 miles south. A little further out are Bicester Community Hospital (4.6 miles south) and Beaumont Castle (3 miles north).
New build mastic for homes and businesses in Hethe
A new house keeps drying out and settling for its first couple of years. Timber dries and shrinks, and baths and trays settle, and sealant applied in a hurry at handover can split. If you are dealing with sealant work across a run of new homes and worktop and upstand sealant coming away, we can put it right, whatever the surface.
Somewhere as small as Hethe, new homes tend to be conversions, self-builds or a few houses rather than an 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 isn’t right with it, phone 0345 464 0079 or drop us an email.
- Location
- Hethe (OX27)
- Region
- Oxfordshire
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Why act early in Hethe
Running a new bead over the builder’s sealant might look tidy for a few weeks, but it can’t bond to what’s underneath. A lasting seal starts with removing the old one completely. Older cottages and farmhouses around Hethe can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we will go through it with you.
Why choose Mr Mastic in Hethe
- Homes, businesses and hotels
- Quality sealants from Arbo and Everbuild
- A choice of colours where the product allows
- One-year guarantee on every job
Take a look at how sealant jobs are priced and our reviews.
Common questions in Hethe
I let a flat near Bicester North station. Can you help?
Yes, landlords and agents are among the people we work for. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll send you a clear quote.
Will you come out to Hethe?
Yes. Hethe 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 I need to be at home?
That depends on where the joints are. Inside work needs someone to give us access, and for outside work we will agree access with you when we book.
What should I tell you?
Just the basics: the address or postcode, what’s wrong and any access issues. After that, simply phone 0345 464 0079 or send us an email.
My new home is still under warranty. Should I contact you?
Start with the builder if you’re in the snagging or warranty period. If it isn’t resolved, we will cut it out and reseal it.
Do the sealants smell?
There can be a smell while the sealant cures. Opening a window helps.
Why has my new-build shower seal failed already?
New homes dry out and move in their first couple of years, and sealant is often rushed onto dusty, unprimed surfaces. Either can make it fail early.
When is the best time to reseal in a new build?
For failed seals that let water through, the best time is now. Cosmetic gaps can wait until the first year or two of movement has passed.
More services for Hethe
Signs you need new build mastic in Hethe
When the heating goes on in the first winter, the house dries fast. Skirting, frames and worktops pull away slightly.
If you can see any of these, it’s time to have the joints looked at:
- Internal frame sealant that has split
- New-build shower sealant that has already split
- Worktop and upstand sealant coming away
- Sealant that never bonded to the surface
If you’ve bought a new home near Bicester North station, the sealant around baths, showers and frames is worth checking in the first year or two.
What your quote should include
- The length of the guarantee
- What product goes in the joint
- How long to leave it before use
- What insurance they hold
How the visit works
We work through the job in order: protect, prepare, seal, tidy. Typically it takes anything from a few hours to several days, depending on the number of plots, and the area is left clean. For a village or hamlet like Hethe, the journey is planned in advance: 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.
- We start by agreeing which joints are on the list, from the snagging sheet or plot schedule.
- We cut out every bit of the failed or messy sealant.
- Surfaces are cleaned of building dust and primed where needed.
- New sealant suited to each joint is applied and tooled neatly.
- Each area is checked and left with its cure time.
Getting ready for the visit
- Mention any leaks or damp you’ve noticed
- For indoor joints, keep the area dry beforehand if you can
- Keep pets and children clear of the area while we work
How to get a quote
There’s no standard price list. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or email us.
Read more
Landlord and commercial work in Hethe
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.
If you manage several properties in or around Hethe, several properties can go on one quote. Send us the addresses and the work at each, and photos by email help.
What affects the cost of new build mastic
You’ll get a clear quote before we start. It takes into account:
- Any mould that needs treating
- The size of the job
- How easy the joints are to reach
- Working hours on commercial sites
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.
Asking for a quote
Photos by email are helpful but not essential. Try to tell us:
- The address or postcode of the job
- What the problem is, such as mould, gaps, leaks or cracking
- A few photos by email, if you can
- The rough size of the job
To get a quote, call 0345 464 0079 or drop us an email with the location and a short description of the problem. You’ll have a clear quote before any work starts.
When it is not the sealant
Sealant isn’t the answer to every problem, and we’ll tell you before we start. It will not solve:
- Plumbing faults behind the sealant
- Your warranty claim itself, which is between you and the builder
- Broken tiles or a split tray
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly.
Where we work in Hethe
- Skirting & floors
- Show homes
- Bathrooms & en suites
- Windows & doors
- Plot handovers
- Kitchens
Can I do it myself?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.