West Berkshire · England
New Build Mastic in Boxford
Plot mastic for developers and snagging failed sealant in new homes for Boxford, backed by a one-year guarantee. Ask us for a quote.
- Skirting joints opening in the first winter
- Worktop and upstand sealant coming away
- Sealant applied over dusty or wet surfaces
How the job changes by surface
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.
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.
New build mastic in Boxford
We work in new homes and on new-build sites across Boxford. One shower or a whole phase of plots, the method doesn’t change: cut out, clean, prime where needed and reseal neatly. If you are dealing with sealant work across a run of new homes and kitchen sealant that has pulled off the wall, we can put it right, on bathrooms & en suites, windows & doors and kitchens alike.
Work in a small place like Boxford just needs the journey and access planning, and the work itself is the same as on any site.
You get a 12-month guarantee, the same in Boxford as everywhere else we work.
- Where
- Boxford (RG20)
- Region
- West Berkshire
- Cover
- A year, on every job
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
New homes and floors in Boxford
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you’ve bought a new home near Kintbury station, the sealant around baths, showers and frames is worth checking in the first year or two.
Boxford is about 4 miles north-west of Newbury, in West Berkshire. Across the RG20 area, our applicators can take on new build mastic. We cover 155 towns and villages across West Berkshire. There’s also a page for Reading, about 17 miles away.
Work in RG20 works the same way as everywhere else we cover. That includes homes and businesses on School Lane and Winterbourne Road. Neighbouring places we cover for new build mastic include Wickham Heath (1 mile south-west), Winterbourne (2 miles east), Stockcross (2 miles south), Bagnor (3 miles south-east) and North Heath (3 miles north-east). Larger places within reach include Newbury (4 miles south-east), Thatcham (6 miles south-east), Burghfield Common (14 miles east), Speenhamland (3 miles south-east), Hungerford (6 miles west) and Calcot (14 miles east).
What’s near Boxford
Locally, jobs take us to homes and businesses close to The Bell pub. For rail, the closest station is Kintbury station, about 3.9 miles south-west of the centre. Well-known places in the area include British Balloon Museum & Library Ltd (3.8 miles south-east) and West Berkshire Community Hospital (4.6 miles south-east). Not far away are Sole Common Pond.
Towns and villages near Boxford
What else we do in Boxford
How to look after the new joints
Looking after new joints is easy:
- Avoid running a DIY bead over the old one
- Keep photos and emails about snagging items
- Get a leaking seal dealt with right away
- Report sealant problems to your builder during the snagging period
Ventilation matters in a new home, which is still drying out. Use the extractor fan or open a window after showers so moisture doesn’t sit on the sealant.
Lifting sealant traps moisture and mould behind it. Dealing with it before it goes black keeps the job straightforward.
Landlords, agents and businesses in Boxford
For anyone letting property in or around Boxford, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Your questions about new build mastic in Boxford
Do you work for landlords with property near Kintbury station?
Yes, we work for landlords and agents. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear quote.
Do you cover Boxford for new build mastic?
Yes, Boxford is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or email us and tell us what needs doing, and we will give you a clear price.
Will you just run a new bead over the existing one?
No. The old sealant is cut out fully, then clean and prime the joint, and a new bead applied.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Will the old sealant be removed?
Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Where do you work from?
Our base is Crawley. We work across South East England, London and Scotland.
Are you insured?
Yes, we’re fully insured for every job we do.
Who should fix failed sealant in a new build?
Start with your builder while their snagging or warranty period runs. If that does not work out, we’re happy to quote and our work is guaranteed for a year.
What we do, step by step
Every visit runs the same way: we check the joints, protect the area around them, carry out the job and tidy away. It normally takes a few hours in a single home. In a small place like Boxford, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We go through the snagging list or plot schedule and agree the joints to do.
- The old bead comes out in full, with no layer left behind.
- We clean off dust from the build and prime the surfaces where the product needs it.
- New sealant suited to each joint is applied and tooled neatly.
- Each area is checked and left with its cure time.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- Mention any tricky access
- Let us know about earlier repairs to the joints
Ask for a quote
Need a quote? Please ring 0345 464 0079 or email us and tell us about the job. We will explain what we’d do and send you a clear quote before work begins.
Advice
Common problems we fix in Boxford
On many sites, sealant goes on in the final rush before handover. Joints are not always cleaned of dust or primed, and the sealant sits on grit instead of the surface.
Signs it’s time to call us include:
- New-build shower sealant that has already split
- Smeared, uneven beads picked up at snagging
- Sealant work across a run of new homes
- Gaps opening as the house dries out and settles
In and around Boxford, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- Is the old sealant removed completely?
- Whether the sealant suits the joint
- How long to leave it before use
- What insurance they hold
DIY sealant or a professional job?
If you’re set on DIY, put the effort into 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.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Honest limits
We’d rather tell you now than do work that will not last, so these are the limits:
- A tray or bath that isn’t properly supported, until it’s fixed
- Damaged fittings that need replacing
- Leaking fittings rather than failed sealant
If you are not sure, just ring 0345 464 0079 or email us and we will give you a straight answer.
What we seal
- Windows & doors
- Plot handovers
- Kitchens
- Bathrooms & en suites
- Skirting & floors
- Show homes