Isle of Wight · England
Adgestone New Build Mastic
New build mastic for Adgestone, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Gaps behind new kitchen upstands
- Smeared, uneven beads picked up at snagging
- Leaking shower tray seals in a new home
Signs you need new build mastic in Adgestone
Baths and trays settle under load once the home is lived in. A bath sealed empty drops slightly when filled, straining the joint and can tear.
The most common problems we see are:
- New-build shower sealant that has already split
- Untidy sealant flagged on a snagging list
- Sealant applied over dusty or wet surfaces
- Cracks appearing as a new home settles
For new homes near Sandown station, it’s worth checking the sealant early, while snags are still fresh.
Before booking anyone
- Are they insured?
- Whether all the old sealant comes out first
- Is VAT in the price?
- What happens if the job turns out different
About our new build mastic in Adgestone
We never seal over a failed new-build bead. Fresh silicone can’t bond to the old layer, so it all comes out before we clean, dry and reseal. If you are dealing with messy sealant that spoils new finishes and joints pulling apart as timber shrinks, we can put it right.
Older homes in small places like Adgestone often have timber floors that move with the seasons, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
A one-year guarantee comes as standard.

- Where
- Adgestone (PO36)
- Region
- Isle of Wight
- Cover
- A year, on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Nearby places to Adgestone
More services for Adgestone
The process
On the day, there’s very little for you to do. Show us the job and we will take it from there. The work itself takes a few hours for most snagging lists, longer for a run of plots from start to finish. Somewhere like Adgestone needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by going through the snagging items or plot schedule with you.
- The failed sealant is removed completely.
- Joints are vacuumed and cleaned of building dust.
- We prime where needed and apply a sealant suited to each joint.
- Each bead is tooled and the cure times explained.
Before we arrive
- Let us know about earlier repairs to the joints
- Clear items away from the joints we’re working on
- Tell us about access, such as stairs, a lift or high-level joints
Ask for a quote
For new build mastic in Adgestone, phone 0345 464 0079 or send us an email. Tell us what the problem is and where, and you will get a clear quote before we start.
Related advice
FAQs for Adgestone
Do you cover Adgestone for new build mastic?
Yes, Adgestone is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or email us and let us know what needs doing.
Can you help a landlord with a rental near Sandown station?
Yes. We work for landlords and agents as well as householders, and several properties can be quoted together. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Why has my new-build shower seal failed already?
Cracking in the first couple of years is common. Poor preparation at handover adds to it.
What colour sealant will you use?
We use white, clear or a colour to suit the finishes. Let us know your preference when you ask for a quote.
Can you work from my snagging list?
Yes. Snagging lists are a common starting point for us. We will go through the sealant items and agree what we will do.
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.
When is the best time to reseal in a new build?
Where water is getting through, don’t wait. Small gaps that are just cosmetic can be resealed once movement has slowed.
Can you do plot mastic on a new development?
Yes. We take on second-fix sealant work across new plots. We clean and prime joints properly to keep callbacks down.
Landlord and commercial work in Adgestone
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can go on one quote.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
Why act early in Adgestone
A hairline gap at a skirting can wait, but a leaking seal can’t. Not sure whether yours can wait? You can call 0345 464 0079 or drop us an email with a few pictures. Older cottages and farmhouses around Adgestone can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we’ll go through it with you.
Why Adgestone clients choose us
- We’re fully insured
- More than 20 years in sealant work
- Colour picked to suit the job
- Colour agreed with you before we start
Take a look at our cost guide and customer reviews.
Looking after it afterwards
Looking after new joints is easy, and it makes a real difference:
- Watch for new gaps as the house dries out
- Report sealant problems to your builder during the snagging period
- Use the extractor fan every time you shower
- Keep water off fresh sealant until it has cured
Leave the sealant for the cure time we give you before showering or bathing. Silicone is usually left for about a day to cure enough for use.
Early snagging is easier snagging. Left alone, a small crack can become a leak.
Honest limits
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Damaged fittings that need replacing
- Your warranty claim itself, which is between you and the builder
- Leaks from pipes, valves or wastes, which need a plumber
If you are not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer.
Joints and surfaces we work on
- Bathrooms & en suites
- Kitchens
- Skirting & floors
- Plot handovers
- Show homes
- Windows & doors
How we quote for new build mastic
Every job gets its own quote. This is what makes a difference:
- Working hours on commercial sites
- How many rooms, windows or areas are involved
- Access and height
- Mould in or behind the old joints
Leaving a failed joint normally makes the job bigger, not smaller. If you are unsure, phone 0345 464 0079 or drop us an email for an honest opinion and a quote.
Asking for a quote
There’s no need for technical detail. It helps if you can tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- The address or postcode of the job
- Access, such as stairs, a lift or height
- Photos by email, if that’s easy
To get a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You will have a clear quote before any work starts.
New build mastic around Adgestone
Adgestone is within about 2 miles of the coast. Plot mastic on new homes near the coast takes more weather than it would inland, so any gaps are best picked up early. 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.
Around Adgestone, as everywhere, new build mastic is only as good as the preparation behind it.
Adgestone is about 4 miles south of Ryde, in the Isle of Wight. Adgestone gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Across the Isle of Wight, we cover 125 places, and Adgestone is one of them. You can also see our page for Portsmouth, roughly 10 miles from Adgestone.
Jobs for new build mastic in PO36 is quoted and booked the same way as anywhere else. Whether your property is on Upper Road, Lower Road and Lower Adgestone Road or anywhere close by, our applicators can take on the job. Other places close to Adgestone include Morton (1 mile east), Yarbridge (1 mile east), Brading (1 mile north-east), Alverstone (1 mile south-west) and Sandown (1 mile south). We also work in nearby towns such as Newport (6 miles west), Ryde (4 miles north), Cowes (9 miles north-west), Shanklin (3 miles south), Ventnor (6 miles south) and East Cowes (8 miles north-west). If you’re somewhere remote, a little more planning is needed, so mention it when you ask for a quote.
What’s near Adgestone
Typical jobs here are in homes near The Bay Church of England School and Sandown Bay Academy, among other places. For rail, the closest station is Sandown station, roughly 1.1 miles south of the centre. A little further out are Sandown Castle (1.3 miles south-east) and Brading Waxworks (1 mile north-east). Not far away are Alverstone Mead and Brading Down.
