West Berkshire · England
West Ilsley New Build Mastic
Professional new build mastic in and around West Ilsley, with every bit of old sealant taken out first.
- Joints pulling apart as timber shrinks
- Plot mastic for developers ahead of handover
- Internal frame sealant that has split
New build mastic in West Ilsley
A new house keeps drying out and settling for its first couple of years. Timber shrinks, plaster dries and baths and trays bed down, so sealant that was laid quickly before handover often cracks. Typical jobs include kitchen sealant that has pulled off the wall and new-build shower sealant that has already split, across bathrooms & en suites, plot handovers and windows & doors.
Work in a small place like West Ilsley just needs the journey and access planning, and once on site, the job is the same as anywhere.
Each job carries a 12-month guarantee, large or small.
- Location
- West Ilsley (RG20)
- Region
- West Berkshire
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Can I do it myself?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Also near West Ilsley
Also in West Ilsley
When to call us in West Ilsley
New homes are full of moisture from plaster, screed and concrete, and it dries out over the first couple of years. As it does, timber shrinks and joints open, and sealant that cannot keep up splits.
These are the problems we are asked about most:
- New-build shower sealant that has already split
- Plot mastic for developers ahead of handover
- Cracks appearing as a new home settles
- Sealant that never bonded to the surface
In and around West Ilsley, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
What to look for in a quote
- Which colour the sealant will be
- Whether the sealant suits the joint
- What happens if they find a problem under the old sealant
- How the surfaces are prepared before sealing
How the job changes by surface
Kitchens
Beside the sink, the joint takes water every day. We use a sealant suited to kitchens, food-safe where it’s needed.
Skirting and floors
Where the floor meets a bath panel or kitchen plinth, the joint keeps mop water out. We seal them with a sealant suited to wet areas.
How to look after the new joints
Simple care keeps the joints in good condition. We recommend:
- Photograph failed sealant before it’s redone
- Check bath and shower seals every few months as the house settles
- Keep water off fresh sealant until it has cured
- Report sealant problems to your builder during the snagging period
Leave the sealant for the cure time we give you before showering or bathing. Most silicones need around a day before water reaches them.
Early snagging is easier snagging. Small faults turn into leaks if left over time.
What we do, step by step
Most of a good job is in the preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it usually takes anything from a few hours to several days, depending on the number of plots. In a small place like West Ilsley, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by going through the snagging items or plot schedule with you.
- The failed sealant is removed completely down to clean surfaces.
- Joints are vacuumed and cleaned of building dust.
- Primer goes on where the surface and product need it, then the new sealant.
- We tool every joint neatly and tell you when each area can be used.
Getting ready for the visit
- Move anything stored near the joints
- Mention any leaks or damp you’ve noticed
- Keep children and pets away from the work area
How to get a quote
For a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You will have a clear quote before we start.
Advice
West Ilsley questions
Do you cover West Ilsley for new build mastic?
Yes, West Ilsley is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear quote.
Will you come out to West Ilsley?
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.
Can you do plot mastic on a new development?
Yes. Second-fix sealing in bathrooms, kitchens, frames and floors is part of what we do. Good preparation keeps snagging to a minimum.
Do you do commercial work?
Yes. We can plan bigger jobs in stages.
Who should fix failed sealant in a new build?
While the snagging or warranty period runs, the builder should be your first contact. If it isn’t sorted, or keeps failing, get in touch with us.
Can you do several jobs on one visit?
Yes. Just list everything you need and we’ll quote it together.
Can I do it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Do you work for letting agents?
Yes, we do. We work in homes, commercial premises and hotels.
Quotes for new build mastic in West Ilsley
Some jobs are bigger than they look, and some smaller. The main factors:
- Working hours on commercial sites
- Access and height
- The old material and how stubborn it is
- How much there is to do
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Helping us quote
When you call or email, it’s useful to know:
- Pictures of the joints, sent by email
- Where the job is, and your postcode
- What the problem is, such as mould, gaps, leaks or cracking
- The type of property
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.
Honest limits
It helps to know what we cannot do:
- Leaking fittings rather than failed sealant
- Movement caused by a poorly fitted tray or bath
- Settlement cracks that need a surveyor
If you’re not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer before you book.
Joints and surfaces we work on
- Skirting & floors
- Plot handovers
- Bathrooms & en suites
- Kitchens
- Show homes
- Windows & doors
New homes and floors in West Ilsley
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For jobs in and around West Ilsley, choosing the right material for each joint is as important as a tidy finish.
West Ilsley is about 6 miles south-west of Didcot, in West Berkshire. Jobs in West Ilsley get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. We cover 155 towns and villages across West Berkshire. Oxford is on our list too, around 15 miles away.
Every address in RG20 is within our area for new build mastic. New build mastic is available to properties on Bury Lane and Churchway and the roads around them. If you’re just outside West Ilsley, we cover Catmore (2 miles south-west), Stanmore (2 miles south), Farnborough (3 miles west), Brightwalton (4 miles south-west) and Brightwalton Green (4 miles south-west). We also work in nearby towns such as Newbury (10 miles south), Thatcham (10 miles south), Burghfield Common (15 miles south-east), Speenhamland (9 miles south), Hungerford (12 miles south-west) and Calcot (13 miles south-east).
Near you in West Ilsley
In West Ilsley, that means homes and buildings near The Harrow pub and the streets around them. Well-known places in the area include Atlas Computer Laboratory (2.4 miles north). For a walk, there’s Mowbray Fields and Churn Hill.