Isle of Wight · England
New-build mastic & snagging in Great Thorness, Isle of Wight
Professional new build mastic in and around Great Thorness, with old sealant always removed completely and a 12-month guarantee.
- Sealant that never bonded to the surface
- Untidy sealant flagged on a snagging list
- Gaps opening as the house dries out and settles
Different surfaces, different methods
Skirting and floors
New homes often develop a gap between skirting and floor. We seal it with a flexible sealant that copes with the movement.
Plot handovers
Taking time over preparation reduces return visits. Dust from the build is removed first and prime where the product needs it.
New build mastic in Great Thorness
Dust is the enemy of new-build sealant. Each joint is cleaned of dust and primed where the product calls for it, so the sealant actually sticks rather than sitting on a layer of grit. If you are dealing with messy sealant that spoils new finishes and sealant applied over dusty or wet surfaces, we can put it right.
Somewhere as small as Great Thorness, new homes tend to be conversions, self-builds or a few houses rather than an estate. Each still needs its sealant and floor joints finished properly.
A 12-month guarantee comes with the work, just as it does everywhere we cover.

- Place
- Great Thorness (PO31)
- Wider area
- Isle of Wight
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
How it works
We bring everything the job needs with us, so there’s nothing for you to buy. After a quick look at the joints together, we protect the area and start. Most jobs take anything from a few hours to several days, depending on the number of plots. For a village or hamlet like Great Thorness, the journey is planned in advance: 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 agreeing which joints are on the list, from the snagging sheet or plot schedule.
- We cut out every bit of the failed or messy sealant.
- Surfaces are cleaned of building dust and primed where needed.
- New sealant suited to each joint is applied and tooled neatly.
- Finally, each room is checked and you are given the cure time.
Before we arrive
- Clear items away from the joints we are working on
- Mention any leaks or damp you’ve noticed
- Let us know about earlier repairs to the joints
Get a quote
There’s no standard price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To get started, ring 0345 464 0079 or email us.
Related advice
What affects the cost of new build mastic
There’s no set price list, because no two jobs are the same. The quote depends on:
- When we can work, for business premises
- Whether the work is at height
- Which sealant suits the joint
- Whether there’s mould to deal with
What it costs depends on how much there is to do, how much old material has to come out and how easy the joints are to reach. You’ll have a clear quote before any work starts.
Helping us quote
There’s no need for technical detail. Just tell us:
- The address or postcode of the job
- If someone has resealed it before
- Any access issues, like height or stairs
- The problem you’ve noticed
To get a quote, ring 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.
When something else is needed
We will not take on work that won’t last, so these are the limits:
- Structural cracks in walls or ceilings
- Plumbing faults behind the sealant
- Broken tiles or a split tray
Not sure which it is? You can call 0345 464 0079 or send us an email and we will tell you honestly before you book.
Where we work in Great Thorness
- Skirting & floors
- Windows & doors
- Kitchens
- Show homes
- Plot handovers
- Bathrooms & en suites
New build mastic in Great Thorness: local notes
Great Thorness is within about 1 mile of the coast. New homes near the sea put their outside mastic to work from day one, 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.
Whether the job is in Great Thorness itself or nearby, the right material for each joint matters as much as a neat finish. Around Great Thorness, as everywhere, new build mastic is only as good as the preparation behind it.
Great Thorness is about 3 miles south-west of Cowes, in the Isle of Wight. If you need new build mastic in Great Thorness, it’s easy to get a quote: please phone 0345 464 0079 or email us. We’re based in Crawley and cover the Isle of Wight. We cover 125 towns and villages across the Isle of Wight, from the larger towns to small villages. Our Southampton page covers work nearby (13 miles or so).
Jobs for new build mastic in PO31 is quoted and booked the same way as anywhere else. Neighbouring places we cover for new build mastic include Porchfield (1 mile south-west), Locksgreen (1 mile south-west), Rew Street (2 miles north-east), Newtown (2 miles south-west) and Northwood (2 miles north-east). Within a short drive, we also cover Newport (3 miles south-east), Ryde (9 miles east), Cowes (3 miles north-east), Sandown (10 miles south-east), Shanklin (10 miles south-east) and Ventnor (11 miles south-east). For island and remote addresses, a little more planning is needed.
Landmarks near Great Thorness
In Great Thorness, that means homes and buildings near Sportsman's Rest pub and the streets around them. A little further out are Carisbrooke Castle (3.5 miles south-east) and St Mary's Hospital (2.8 miles south-east). For a walk, there’s Mill Hill.
Places near Great Thorness
What else we do in Great Thorness
Keeping the joints in good condition
A little care helps the new joints last. Our advice:
- Don’t wait for the house to settle if water is getting through
- Open a window or run the fan after bathing
- Resist patching a failed seal with a tube from the DIY shop
- Avoid scourers and strong chemicals on sealant
Keep the bathroom ventilated, especially in the first year. Run the fan or open a window after bathing to help keep mould away.
If a shower tray or bath seal splits in the first year, look for movement. Getting it resealed properly, and any movement checked, stops it recurring.
Why deal with it now?
Sealant done properly at handover means fewer callbacks. Snagging visits for failed sealant cost time on every plot, and they’re avoidable with good preparation. Around Great Thorness, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
Why us?
- Neat joints and a tidy finish
- White, clear, grey or coloured to suit, where the product allows
- More than 20 years in sealant work
- An ARBOMaster approved applicator
See our cost guide and customer reviews.
Landlord and commercial work in Great Thorness
In hotels, rooms out of use cost money, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
Landlords and agents in Great Thorness can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.
Great Thorness: your questions answered
Is new build mastic in Great Thorness guaranteed?
Every job comes with our one-year guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
Do you cover smaller places like Great Thorness?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
When is the best time to reseal in a new build?
If the seal has failed and water is getting in, do it now. Hairline cosmetic gaps can wait until the house has settled.
Is it messy?
Not at all. The area is protected while we work and cleaned up afterwards.
Can tenants book the work?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
What do you need from me for a quote?
Only a few details: the address or postcode, what’s wrong and any access issues. Then phone 0345 464 0079 or send us an email.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us and we’re fully insured.
Do you use white or clear sealant?
White and clear are the most common, but sealant comes in other colours too. We choose one to suit the room and agree it with you.
