Oxfordshire · England
Poundon New Build Mastic
New build mastic across Poundon and nearby, with old sealant always removed completely and a 12-month guarantee.
- Gaps between new skirting and floors
- Cracks appearing as a new home settles
- New-build shower sealant that has already split
Leave it or put it right?
A quick bead over the top of the old sealant can look fine at first, but it won’t bond to the old layer. Taking it all out and starting again is the only way to get a lasting seal. In a small place like Poundon, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Doing several joints on one visit is normally more efficient than separate visits. You will get one clear quote for the whole job.
What you get with us
- We never seal over old sealant
- Sealant colour chosen to suit
- Fully insured
- Experience in homes, commercial sites and hotels
Read what affects the cost or customer reviews.
New build mastic in Poundon, done properly
Our new-build work comes in two parts: plot mastic for developers, and putting right failed sealant for people who’ve bought a new home. In both, preparation makes the difference. We work on bathrooms & en suites, plot handovers and show homes, and the jobs we see most are smeared, uneven beads picked up at snagging and cracked sealant around new window and door frames.
Work in a small place like Poundon just needs the journey and access planning, and the work itself is the same as on any site.
Big or small, it’s backed by our one-year guarantee.
- Where
- Poundon (OX27)
- Region
- Oxfordshire
- Guarantee
- One year on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026

Also near Poundon
More services for Poundon
Aftercare tips
How long the joints last depends on use and care. Here’s what we suggest:
- Watch for new gaps as the house dries out
- Keep water off fresh sealant until it has cured
- Ventilate bathrooms well, especially in the first year
- Clean sealant with mild detergent, not abrasives
Ventilation matters in a new home, which is still drying out. Use the extractor fan or open a window after showers so moisture does not sit on the sealant.
Mould takes hold quickly in sealant that has gaps or lifted edges. Dealing with it before it goes black keeps the job straightforward.
When it is not the sealant
It helps to know what we cannot do:
- Movement caused by a poorly fitted tray or bath
- Cracked trays, tiles or worktops
- Disputes or warranty claims with your builder
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly before you book.
Where we work in Poundon
- Skirting & floors
- Bathrooms & en suites
- Show homes
- Windows & doors
- Kitchens
- Plot handovers
What affects the cost of new build mastic
We do not publish a price list. What we look at:
- The product the joint needs
- The old material and how stubborn it is
- Any mould that needs treating
- The size of the job
The cost reflects the work involved, not a rough estimate. That is why we ask a few questions first and agree the price before starting.
What we need to know
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- How we’d reach the joints
- Whether it has been sealed before
- The rough size of the job
- What’s wrong with the joints now
To get a quote, call 0345 464 0079 or drop us an email with the location and a short description of the problem. We will give you a clear quote before any work starts.
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
How it works
Before we leave, we go over the finished joints with you and explain the cure time. The work normally takes anything from a few hours to several days, depending on the number of plots, depending on the size of the job. For a village or hamlet like Poundon, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We look at why each joint failed, including any movement.
- We remove the failed sealant and clean the joints.
- 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.
- The finished joints are checked and the cure times given.
Preparing for the visit
- Keep pets and children clear of the area while we work
- Clear items away from the joints we’re working on
- Tell us about any previous sealing or DIY attempts
Ask for a quote
Every job is quoted individually, so the first step is telling us about yours. Simply ring 0345 464 0079 or email us and describe the job.
Related advice
New build mastic around Poundon
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.
For new homes near Bicester North station, it’s worth checking the sealant early, while snags are still fresh. In and around Poundon, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Poundon is about 4 miles east of Bicester, in Oxfordshire. Poundon gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our Oxfordshire coverage runs to 443 places, Poundon among them. You can also see our page for Oxford, about 14 miles away.
Our applicators cover all of OX27 for new build mastic and the streets around it. Neighbouring places we cover for new build mastic include Twyford (1 mile north-east), Marsh Gibbon (2 miles south), Charndon (2 miles south-east), Calvert (3 miles east) and Preston Bissett (3 miles north). Larger places within reach include Oxford (14 miles south-west), Bicester (4 miles west), Thame (13 miles south), Kidlington (12 miles south-west), Headington Quarry (13 miles south-west) and Bure Park (4 miles west).
Near you in Poundon
We work in homes and buildings around The Sow and Pigs pub, among other places. The nearest railway station is Bicester North station, about 4.1 miles west of the centre. Nearby you will also find Bicester Community Hospital (4.6 miles south-west). Not far away are Graven Hill and Calvert Jubilee.
For landlords and businesses
Hotels need rooms back in use, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can go on one quote.
Questions from Poundon
Do you cover smaller places like Poundon?
Yes, Poundon is covered. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Can you do new build mastic in Poundon?
Yes. We work across London and the South East, and Poundon is part of that. You can phone 0345 464 0079 or email us and let us know what needs doing, and we will give you a clear quote.
Is it worth resealing while the house is still settling?
Where water is getting through, do not wait. Small gaps that are just cosmetic can be resealed once movement has slowed.
What sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll tell you what we are using.
Is the work guaranteed?
Yes, always. Each job is guaranteed for twelve months, wherever you are.
How long should I leave it?
Many sealants skin over quickly but take longer to cure fully. We’ll tell you how long to leave the joint before we leave.
Do you use white or clear sealant?
That depends on what the joint meets: white or clear in most bathrooms, and a colour to suit worktops, frames and floors elsewhere. We agree the colour before work begins.
Do you work for developers?
Yes. We work through plots to your schedule. Get in touch with the number of plots and the scope for a clear quote.
