Oxfordshire · England
New Build Mastic in Cutteslowe
New build mastic for Cutteslowe, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- New-build shower sealant that has already split
- Sealant applied over dusty or wet surfaces
- Untidy sealant flagged on a snagging list
New build mastic in Cutteslowe, 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, because that is what rushed new-build sealant usually lacks. We work on plot handovers, kitchens and bathrooms & en suites, and people most often call us about sealant applied over dusty or wet surfaces and messy sealant that spoils new finishes.
Where new homes go up in smaller places like Cutteslowe, 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.
Whatever the size of the job, it’s backed by our 12-month guarantee in Cutteslowe and across Oxfordshire.
- Location
- Cutteslowe (OX2)
- Wider area
- Oxfordshire
- Cover
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Keeping the joints in good condition
How long the joints last depends on use and care. Here’s what we suggest:
- Resist patching a failed seal with a tube from the DIY shop
- Photograph failed sealant before it’s redone
- Use the extractor fan every time you shower
- Raise failed sealant with the developer while you are covered
Leave the sealant for the cure time we give you before showering or bathing. Most silicones need around a day before water reaches them.
Leave a failed new-build seal and water can reach the floor and the ceiling below. Catching it early keeps the fix to the sealant and protects the rest of the house.
Different surfaces, different methods
Bathrooms and en suites
Baths, showers, basins and trays in new bathrooms are the most common new-build reseal. We cut out the failed bead, clean and prime, and reseal with anti-fungal sanitary silicone.
Skirting and floors
Where the floor meets a bath panel or kitchen plinth, the joint keeps mop water out. They get a flexible, water-resistant sealant.
The process
On the day, we look over the joints with you first. We protect the surfaces around the joints before any work begins. Most jobs take a few hours for most snagging lists, longer for a run of plots. In a smaller place like Cutteslowe, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- First we work through your snagging list or plot schedule with you.
- We cut out every bit of the failed or messy sealant.
- We clean off dust from the build and prime the surfaces where the product needs it.
- A sealant chosen for each area goes in and is tooled smooth.
- Each area is checked and left with its cure time.
Preparing for the visit
- Keep pets and children clear of the area while we work
- Tell us about any water getting in
- For indoor joints, keep the area dry beforehand if you can
Ask for a quote
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 drop us an email.
Advice
Nearby places to Cutteslowe
What else we do in Cutteslowe
For landlords and businesses
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
For anyone letting property in or around Cutteslowe, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.
Cutteslowe: your questions answered
I let a flat near Oxford Parkway station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
Do you cover Cutteslowe for new build mastic?
Yes, Cutteslowe is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we are fully insured.
Why does sealant fail so quickly in new builds?
There are normally two causes: movement as the house dries and settles, and sealant laid onto dust without primer. Cutting it out and resealing properly fixes both.
What sealant do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Do I have to be there?
That depends on where the joints are. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
Can you match the sealant colour to my new kitchen or bathroom?
Most bathroom joints are white or clear, but sealant comes in other colours too. We choose one to suit the room and agree it with you.
What should I tell you?
Only a few details: the address or postcode, what’s wrong and any access issues. Then call 0345 464 0079 or send us an email.
What sealant work cannot fix
Sealant isn’t the answer to every problem, and we’d rather say so up front. Sealant will not put right:
- Structural cracks in walls or ceilings
- Movement caused by a poorly fitted tray or bath
- Your warranty claim itself, which is between you and the builder
If in doubt, call 0345 464 0079 or email us and we’ll say what we think.
What we seal
- Windows & doors
- Bathrooms & en suites
- Plot handovers
- Skirting & floors
- Show homes
- Kitchens
New build mastic in Cutteslowe: local notes
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For new homes near Oxford Parkway station, it’s worth checking the sealant early, while snags are still fresh.
Cutteslowe is about 3 miles north-west of Oxford, in Oxfordshire. If you need new build mastic in Cutteslowe, please phone 0345 464 0079 or send us an email for a quick quote. We’re based in Crawley and cover Oxfordshire, Cutteslowe included. Our Oxfordshire coverage runs to 443 places, Cutteslowe among them.
We work across the OX2 postcode area for new build mastic. New build mastic is available to properties on Wren Road, Scott Road and Wyatt Road and the roads around them. Cutteslowe is on the A4165, which makes it straightforward to reach. Neighbouring places we cover for new build mastic include Sunnymead (1 mile south), Summertown (1 mile south), North Oxford (1 mile south), Wolvercote (1 mile west) and Godstow (2 miles south-west). Larger places within reach include Oxford (3 miles south-east), Didcot (12 miles south), Bicester (9 miles north-east), Abingdon-on-Thames (8 miles south), Witney (10 miles west) and Carterton (14 miles west).
Around Cutteslowe
In Cutteslowe, that means homes and buildings near Oxford University Parks, St Hugh's College Main Building Including Library and The Plough pub and the streets around them. Also close by are Oxford Academy (1.1 miles south) and Summer Fields School (0.8 miles south). The closest station to Cutteslowe is Oxford Parkway station, about 1 mile north. Well-known places in the area include Acland Hospital (2 miles south) and Oxford University Museum of Natural History (2.2 miles south). Open spaces near Cutteslowe include Headington Hill and Hook Meadow and The Trap Grounds.
When to call us in Cutteslowe
Sealant is often one of the last jobs before handover. Joints are not always cleaned of dust or primed, so the bead never bonds properly.
Common reasons people contact us include:
- Leaking shower tray seals in a new home
- Second-fix sealing on new plots
- Joints pulling apart as timber shrinks
- Cracked sealant around new window and door frames
Around Cutteslowe, as everywhere, new build mastic is only as good as the preparation behind it.
Comparing quotes
- What insurance they hold
- Is VAT in the price?
- Which colour the sealant will be
- What happens if they find a problem under the old sealant
DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.