Oxfordshire · England
Long Hanborough New Build Mastic
Plot mastic for developers and snagging failed sealant in new homes for householders, landlords and businesses in Long Hanborough. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Sealant that never bonded to the surface
- Shower seals failing in the first year or two
- Cracked sealant around new window and door frames
New build mastic for homes and businesses in Long Hanborough
We work in new homes and on new-build sites across Long Hanborough. Whether it’s one en suite or a run of plots, the method is the same: remove, clean, prime where needed, then a neat new bead. We work on show homes, kitchens and plot handovers, and common reasons people get in touch are new-build shower sealant that has already split and gaps behind new kitchen upstands.
Where new homes go up in smaller places like Long Hanborough, it’s often a small development or a single plot. The sealant around baths, showers, frames and skirtings needs to be right from the start.
The work is covered for a year after we finish. If anything isn’t right with it, call 0345 464 0079 or drop us an email.
- Where
- Long Hanborough (OX29)
- Region
- Oxfordshire
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Aftercare tips
After the cure time, these simple habits help:
- Check bath and shower seals every few months as the house settles
- Avoid scourers and strong chemicals on sealant
- Get a leaking seal dealt with straight away
- Put sealant faults on your snagging list early
Watch the joints as the house settles. Hairline gaps can open as timber and plaster dry, and they’re simple to reseal once movement has slowed.
Leave a failed new-build seal and water can reach the floor and the ceiling below. Early resealing keeps the job small and the new finishes intact.
What we do, step by step
There is not much for you to do on the day. Point us to the joints and we’ll get on with it. The work itself takes a few hours for most snagging lists, longer for a run of plots, including the tidy-up. In a smaller place like Long Hanborough, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- We look at why each joint failed, including any movement.
- Old sealant is cut out and the joints cleaned.
- Joints are dried and primed where the product calls for it.
- New sealant goes in, with baths filled first so they’re at their heaviest.
- We check every joint and leave you with the cure times.
Before we arrive
- Tell us about any water getting in
- Clear items away from the joints we’re working on
- On commercial sites, let us know about site rules
Ask for a quote
For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we will talk you through the work and give you a clear quote.
Read more
Can I do it myself?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
What the job involves on each surface
Skirting and floors
New homes often develop a gap between skirting and floor. A flexible sealant closes it without cracking like caulk.
Bathrooms and en suites
En suite seals are easy to miss on a snagging list until they leak. Resealing properly keeps water where it belongs.
Long Hanborough questions
Do you cover Long Hanborough for new build mastic?
Yes, Long Hanborough is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or drop us an email and tell us what needs doing.
Do you cover smaller places like Long Hanborough?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can I add another job to the visit?
Yes. Just list everything you need and we will quote it together.
What should I tell you?
Tell us what needs doing and where, with pictures by email if possible. If we need more, we’ll ask.
Can you match the sealant colour to my new kitchen or bathroom?
Most bathroom joints are white or clear, but other colours are available. We match the colour to the finish and agree it with you.
Do you work for landlords and businesses?
Yes. We work for homeowners, landlords, letting agents, businesses and hotels in Long Hanborough.
How long should I leave it?
It depends on the product and the temperature. Before we leave, we’ll tell you the cure time.
Is there any odour?
It depends on the product. Some products have a noticeable smell, others very little, and any smell fades as they cure.
What else we do in Long Hanborough
What affects the cost of new build mastic
The price is agreed before any work begins. It takes into account:
- Whether old sealant or filler has to be cut out
- Mould in or behind the old joints
- Access and height
- How many areas need sealing
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. Your quote takes all of that into account.
Helping us quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- A few photos by email, if you can
- Whether it has been sealed before
- If it’s domestic, commercial or a hotel
We don’t publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or email us.
New build mastic in Long Hanborough: local notes
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
In and around Long Hanborough, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint. If you’ve bought a new home near Combe station, the sealant around baths, showers and frames is worth checking in the first year or two.
Long Hanborough is about 5 miles north-east of Witney, in Oxfordshire. Our applicators cover new build mastic for homeowners, landlords and businesses in Long Hanborough. Across Oxfordshire, we cover 443 places, and Long Hanborough is one of them. There’s also a page for Oxford, roughly 9 miles from Long Hanborough.
Work in OX29 is quoted and booked the same way as anywhere else. You’ll find streets such as Church Road, New Road and Churchill Way. Neighbouring places we cover for new build mastic include Church Hanborough (1 mile south-east), Bladon (2 miles east), Woodstock (3 miles north-east), Worton (3 miles south-east) and Begbroke (3 miles east). We also work in nearby towns such as Oxford (9 miles south-east), Bicester (12 miles north-east), Abingdon-on-Thames (11 miles south-east), Witney (5 miles south-west), Carterton (9 miles south-west) and Grove (15 miles south).
Near you in Long Hanborough
Typical jobs here are in homes near Three Horseshoes pub, among other places. The closest station to Long Hanborough is Combe station, roughly 0.6 miles north of the centre. Other landmarks nearby include Morris Motors Museum (1 mile east). For a walk, there’s Blenheim Farm.
Why deal with it now?
A tube of sealant from the DIY shop will not fix the cause: dust, no primer and old sealant left in the joint. Cutting out, cleaning and priming are what make the difference. In a smaller place like Long Hanborough, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
The cost depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before we start.
Why choose Mr Mastic in Long Hanborough
- Anti-fungal silicone where joints get wet
- Domestic, commercial and hotel work
- Rated 4.9 stars on Google
- Any old sealant cut out fully, not covered over
See what affects the cost or our reviews.
What we can’t put right
Sealant is not the answer to every problem, and we’d rather say so up front. It will not solve:
- Settlement cracks that need a surveyor
- A tray or bath that is not properly supported, until it’s fixed
- Disputes or warranty claims with your builder
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think before you book.
Joints and surfaces we work on
- Windows & doors
- Kitchens
- Show homes
- Skirting & floors
- Plot handovers
- Bathrooms & en suites