Oxfordshire · England
New Build Mastic in Stonor
Problem with your new-build sealant joints in Stonor? We cut out the old, prepare the joints and apply the right sealant.
- Shower seals failing in the first year or two
- Cracked caulk along new skirting
- Beads laid onto grit and dust from the build
What we do, step by step
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes anything from a few hours to several days, depending on the number of plots, and the area is left clean. In a small place like Stonor, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each joint is checked for movement before we start.
- We remove the failed sealant and clean the joints.
- Joints are dried and primed where the product calls for it.
- Baths are filled with water, then the new sealant is applied.
- We check every joint and leave you with the cure times.
How to prepare
- Clear items away from the joints we’re working on
- Plan for the work area to be out of bounds to pets and children
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job.
Read more
About our new build mastic in Stonor
If your new home has a leaking shower seal, open skirting joints or untidy sealant, we can help. If you are still within the builder’s snagging or warranty period, tell them first. Common call-outs are for sealant work across a run of new homes and shower seals failing in the first year or two, on show homes, skirting & floors and plot handovers.
In a village or hamlet like Stonor, new homes are more likely to be a barn conversion or a handful of houses than a big estate. Every one needs its sealant and floor joints done properly, whatever the size of the site.
We guarantee the work for a year. If something is not right with it in that time, tell us and we will put it right.
- Location
- Stonor (RG9)
- Wider area
- Oxfordshire
- Cover
- 12 months on all our work
- Quote
- A clear price before work begins
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Questions from Stonor
What guarantee comes with new build mastic in Stonor?
Every job comes with our 12-month guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Can you do new build mastic in Stonor?
Yes, Stonor is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or email us with a few details of the job, and we’ll send you a clear quote.
Can I do it myself?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
My new home is still under warranty. Should I contact you?
Start with the builder if you’re in the snagging or warranty period. Once that’s done, or if they won’t put it right, we can reseal it properly.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us and we are fully insured.
Are you an approved applicator?
Yes. We are approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
Do you work through snagging lists?
Yes. Snagging lists are a common starting point for us. We will go through the sealant items and agree what we will do.
Where are you based?
Our base is in Crawley, West Sussex, and we work across South East England, London and Scotland.
Towns and villages near Stonor
Other services in Stonor
What affects the quote in Stonor
Every job gets its own quote. These are the things that affect it:
- How much old sealant there is and how hard it is to remove
- The number of rooms or windows
- Working hours on commercial sites
- The type of sealant required
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we will explain what it covers.
Helping us quote
To help us quote quickly, let us know:
- If it’s domestic, commercial or a hotel
- Where the property is
- Pictures of the joints, sent by email
- What’s wrong with the joints now
There’s no standard price list, because every job is different. Instead, we send you a clear quote for your job. To arrange one, call 0345 464 0079 or send us an email.
When something else is needed
Before booking, it’s worth knowing the limits:
- Cracked trays, tiles or worktops
- Deciding who is responsible under a builder’s warranty
- Structural cracks in walls or ceilings
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly before booking.
Where we work in Stonor
- Skirting & floors
- Show homes
- Windows & doors
- Kitchens
- Plot handovers
- Bathrooms & en suites
Landlords, agents and businesses in Stonor
Housing providers, facilities teams and property managers book us too in Stonor and across Oxfordshire. Several sites can be quoted together, and we are fully insured for the work.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will quote.
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
What new build mastic looks like in Stonor
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.
Whether the job is in Stonor itself or nearby, the right material for each joint matters as much as a neat finish. Around Stonor, as everywhere, new build mastic is only as good as the preparation behind it.
Stonor is about 5 miles north of Henley-on-Thames, in Oxfordshire. Stonor 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, Stonor among them. You can also see our page for Reading, about 11 miles away.
We work across RG9 for new build mastic and the streets around it. Other places close to Stonor include Turville Heath (1 mile north-east), Northend (2 miles north), Christmas Common (2 miles north-west), Cookley Green (3 miles west) and Howe Hill (3 miles north-west). We also work in nearby towns such as Didcot (13 miles west), Thame (10 miles north), Henley-on-Thames (5 miles south), Benson (7 miles west), Chinnor (7 miles north) and Tilehurst (11 miles south-west).
Near you in Stonor
We work in homes and buildings around The Crown Inn Public House, among other places. Open spaces near Stonor include Warburg Nature Reserve and Bald Hill.
Aftercare tips
Aftercare is simple, and it makes a real difference:
- Open a window or run the fan after bathing
- Keep photos and emails about snagging items
- Don’t seal over failed sealant yourself
- Follow the cure time we give you
Photograph failed sealant before it’s redone and keep the builder’s replies. It helps if anything else comes up during the warranty period.
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.
Different surfaces, different methods
Windows and doors
The gap between a new frame and its plaster reveal often opens up. We cut out the cracked bead and reseal with a flexible sealant.
Bathrooms and en suites
Shower trays in new homes often move slightly in the first year. We reseal once the old bead is fully out and baths are filled before sealing.