Oxfordshire · England
New Build Mastic in Islip
New-build sealant joints in Islip need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Gaps between new skirting and floors
- Smeared, uneven beads picked up at snagging
- Kitchen sealant that has pulled off the wall
About our new build mastic in Islip
If your new home has a leaking shower seal, open skirting joints or untidy sealant, we can help. While the builder’s snagging or warranty period runs, report it to them first, and if it is not put right, get in touch with us. We work on kitchens, windows & doors and plot handovers, and people most often call us about sealant work across a run of new homes and kitchen sealant that has pulled off the wall.
For a small place like Islip, the journey and access are planned in advance, and once on site, the job is the same as anywhere.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Location
- Islip (OX5)
- Wider area
- Oxfordshire
- Cover
- One year on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Wait for the cure time before using a resealed shower
- Don’t seal over failed sealant yourself
- Avoid scourers and strong chemicals on sealant
- Report sealant problems to your builder during the snagging period
Watch the joints as the house settles. Hairline gaps can open as timber and plaster dry.
A seal that splits early is often a sign of movement. Getting it resealed properly, and any movement checked, stops it recurring.
New build mastic in Islip: local notes
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.
Around Islip, as everywhere, new build mastic is only as good as the preparation behind it. If you’ve bought a new home near Islip station, the sealant around baths, showers and frames is worth checking in the first year or two.
Islip is about 5 miles north of Oxford, in Oxfordshire. Jobs in Islip get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Across Oxfordshire, we cover 443 places, and Islip is one of them.
We cover every part of OX5 for new build mastic and the streets around it. If you need new build mastic at a property on High Street, King's Head Lane and Middle Way or anywhere close by, we can help. Other places close to Islip include Gosford (2 miles south-west), Hampton Poyle (2 miles north-west), Kidlington (2 miles west), Bletchingdon (3 miles north-west) and Weston-on-the-Green (3 miles north). Within a short drive, we also cover Oxford (5 miles south), Didcot (15 miles south), Bicester (6 miles north-east), Abingdon-on-Thames (10 miles south), Witney (11 miles west) and Thame (12 miles south-east).
What’s near Islip
We work in homes and buildings around The Red Lion Inn and Gosford Hill School. Islip has its own railway station: Islip station. Well-known places in the area include Churchill Hospital (4.1 miles south). Green spaces nearby include Otmoor RSPB reserve and Headington Hill.
Should I try it myself first?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
What we do, step by step
Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and clear up. It usually takes anything from a few hours to several days, depending on the number of plots. For a village or hamlet like Islip, 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.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- The failed sealant is removed completely down to clean surfaces.
- Joints are vacuumed and cleaned of building dust.
- We prime where needed and apply a sealant suited to each joint.
- Each bead is tooled and the cure times explained.
Before we arrive
- Keep pets and children clear of the area while we work
- Mention if the joints have been sealed before
- Move anything stored near the joints
Get a quote
For new build mastic in Islip, ring 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Related advice
How the job changes by surface
Plot handovers
Plot mastic is carried out to the developer’s schedule. Each joint is cleaned and primed where needed.
Kitchens
As a new house dries, worktops and walls shift a little, opening gaps behind the upstand. A fresh flexible bead closes them.
What affects the quote in Islip
Call for a quick quote. The main things that affect it are:
- The size of the job
- The product the joint needs
- The old material and how stubborn it is
- How many areas need sealing
What it costs depends on the size of the job, how much old material has to come out and how easy the joints are to reach. We give a clear quote before we start, so you know where you stand.
Asking for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Pictures of the joints, sent by email
- The rough size of the job
- How we’d reach the joints
- The problem you’ve noticed
Want a quote for new build mastic? Please phone 0345 464 0079 or send us an email with a few details. We will explain what we’d do and give you a clear quote before any work starts.
Why deal with it now?
For developers, getting the sealant right first time saves return visits. Every return visit for a failed seal takes time, and they’re avoidable with good preparation. Where a wall is exposed, as many are in small places like Islip, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we will explain what it covers.
Why us?
- Colour picked to suit the job
- Anti-fungal silicone where joints get wet
- Every job guaranteed for a year
- Homes, businesses and hotels
See what affects the cost and what customers say.
Landlords, agents and businesses in Islip
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Islip: your questions answered
Can you do new build mastic in Islip?
Yes, Islip is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or drop us an email and tell us what needs doing, and we will give you a clear price.
Is Islip within the area you cover?
Yes, Islip is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can I add another job to the visit?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Can tenants book the work?
Of course. Check with your landlord; we can send the quote to them too.
Will you leave a mess?
We keep the work tidy. We protect what’s around the joints, and we clear up when we are done.
My new home is still under warranty. Should I contact you?
Start with the builder if you are in the snagging or warranty period. If it isn’t resolved, we will cut it out and reseal it.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. If you can, email a few pictures.
Is it normal for sealant to crack in a new home?
A new house dries and settles for a year or two, and sealant is often applied quickly onto dusty surfaces. Either can make it fail early.