Oxfordshire · England
Wallingford New Build Mastic
Plot mastic for developers and snagging failed sealant in new homes for Wallingford, backed by a 12-month guarantee. Ask us for a quote.
- New-build shower sealant that has already split
- Gaps between new skirting and floors
- Joints pulling apart as timber shrinks
New build mastic in Wallingford
We never seal over a failed new-build bead. New silicone will not bond to old silicone, so it all comes out before we clean, dry and reseal. We work on skirting & floors, kitchens and bathrooms & en suites, and the jobs we see most are kitchen sealant that has pulled off the wall and joints pulling apart as timber shrinks.
If you’ve bought a new home in or near Wallingford, the first year or two is a good time to check the sealant. Gaps at skirtings, shower seals pulling away and missing mastic around frames are common snags.
The work is covered for a year after we finish. If anything is not right with it, ring 0345 464 0079 or drop us an email.
- Location
- Wallingford (OX10)
- Wider area
- Oxfordshire
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
How the visit works
Most of a good job is in the preparation, and we do not rush it. Joints are cleaned back and dried before anything new goes in. In total, it usually takes a few hours in a single home. In a smaller place like Wallingford, 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.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- The failed sealant is removed completely, with no layer left behind.
- We clean out the dust and grit left from the build.
- Primer goes on where the surface and product need it, then the new sealant.
- Each bead is tooled and the cure times explained.
How to prepare
- Mention any sign-in or site rules at work premises
- Let us know about earlier repairs to the joints
- Try not to wet indoor joints just before the visit
How to get a quote
To get a quote, phone 0345 464 0079 or drop us an email with the location and a short description of the problem. You’ll have a clear quote before we start.
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How the job changes by surface
Skirting and floors
Floors and skirting move as the house dries and the heating runs. We use a flexible product rather than caulk painted or coloured to suit.
Windows and doors
The gap between a new frame and its plaster reveal often opens up. We remove cracked sealant and apply a flexible one that suits the frame.
When it is not the sealant
Sealant is not the answer to every problem, and we’ll tell you before we start. Sealant won’t put right:
- Baths and trays that move too much for sealant to cope with
- Leaking fittings rather than failed sealant
- Cracked trays, tiles or worktops
Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly.
Joints and surfaces we work on
- Windows & doors
- Kitchens
- Skirting & floors
- Bathrooms & en suites
- Plot handovers
- Show homes
When to call us in Wallingford
Once people move in, baths and trays take weight and bed down. If a bath wasn’t filled when it was sealed, the bead is stretched the first time it’s used.
Look out for these signs:
- Internal frame sealant that has split
- Cracked caulk along new skirting
- Gaps opening as the house dries out and settles
- Smeared, uneven beads picked up at snagging
In and around Wallingford, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Questions to ask before booking
- How long the guarantee is
- Whether they’re fully insured
- How much experience the applicator has
- Whether VAT is included
What affects the cost of new build mastic
Call for a quick quote. The main things that affect it are:
- How much there is to do
- Whether old sealant or filler has to be cut out
- Any mould that needs treating
- When we can work, for business premises
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all make a difference, and we’ll explain the quote if you ask.
Helping us quote
Photos help, but a description is a good start. Try to tell us:
- The type of property
- Any previous sealing or DIY work
- What the problem is, such as mould, gaps, leaks or cracking
- Photos by email, if that’s easy
For new build mastic in Wallingford, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Your questions about new build mastic in Wallingford
Do you work for landlords with property near Cholsey station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear quote.
Is Wallingford within the area you cover?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you have insurance?
Yes. We are fully insured for every job we do.
How long should I leave it?
That depends on the sealant used, so please follow the time we give you.
Is there any odour?
Possibly a little. It fades as the sealant cures.
Should I go to my builder first?
Start with the builder if you’re in the snagging or warranty period. Once that’s done, or if they will not put it right, we will cut it out and reseal it.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
Is the work guaranteed?
Yes. All our work carries our one-year guarantee.
What new build mastic looks like in Wallingford
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For new homes near Cholsey station, it’s worth checking the sealant early, while snags are still fresh.
Wallingford is about 5 miles east of Didcot, in Oxfordshire. Jobs in Wallingford get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Wallingford is one of 443 places in Oxfordshire where we work. There’s also a page for Oxford, roughly 11 miles from Wallingford.
Work in OX10 is quoted and booked the same way as anywhere else. If you need new build mastic at a property on Station Road, High Street and Hawthorn Close or anywhere close by, we can help. Wallingford is on the A4130, which makes it straightforward to reach with everything needed for new build mastic. Neighbouring places we cover for new build mastic include Preston Crowmarsh (1 mile north-east), Mackney (1 mile west), Brightwell-cum-Sotwell (2 miles north-west), Benson (2 miles north-east) and Shillingford (2 miles north). We also work in nearby towns such as Oxford (11 miles north-west), Didcot (5 miles west), Abingdon-on-Thames (8 miles north-west), Thame (12 miles north-east), Wantage (13 miles west) and Henley-on-Thames (11 miles south-east).
Near you in Wallingford
In Wallingford, that means homes and buildings near Wallingford School, Wallingford School and The Cross Keys Public House, among other places. The closest station to Wallingford is Cholsey station, about 2.4 miles south-west. Nearby you will also find Wallingford Castle (less than half a mile east). Not far away are Wittenham Clumps and Cholsey Marsh.
Towns and villages near Wallingford
Also in Wallingford
Landlord and commercial work in Wallingford
We also work for property managers and facilities teams. Several sites can be quoted together.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.