Isle of Wight · England
New Build Mastic in Locksgreen
New-build sealant joints in Locksgreen need attention? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Cracks appearing as a new home settles
- Sealant work across a run of new homes
- Beads laid onto grit and dust from the build
New build mastic for homes and businesses in Locksgreen
Developers send us the plot schedule and we work through it. We seal bathrooms, kitchens, windows, doors and skirting so plots are ready to hand over using the right product for each joint. We work on windows & doors, show homes and kitchens, and people most often call us about kitchen sealant that has pulled off the wall and sealant work across a run of new homes.
In a village or hamlet like Locksgreen, new homes are more likely to be a barn conversion or a handful of houses than a big estate. Every one needs its sealant and floor joints done properly, whatever the size of the site.
Whatever the size of the job, it’s backed by our 12-month guarantee in Locksgreen and across the Isle of Wight.
- Where
- Locksgreen (PO30)
- Region
- Isle of Wight
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What we are called out for in Locksgreen
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 the sealant has to cope with the movement.
It’s worth asking for a quote if you see:
- Plot mastic for developers ahead of handover
- Gaps opening as the house dries out and settles
- Messy sealant that spoils new finishes
- Shower seals failing in the first year or two
In and around Locksgreen, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
What to look for in a quote
- What guarantee comes with the work
- Which colour the sealant will be
- Whether they’re fully insured
- How the surfaces are prepared before sealing
Joints and finishes in Locksgreen homes
Locksgreen is within about 2 miles of the coast. New homes near the sea put their outside mastic to work from day one, so it’s worth checking at snagging. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For jobs in and around Locksgreen, choosing the right material for each joint is as important as a tidy finish.
Locksgreen is about 3 miles west of Newport, in the Isle of Wight. Every kind of property in Locksgreen is covered for new build mastic. Every job comes with our 12-month guarantee. Our area takes in 125 places across the Isle of Wight, large and small. For nearby work, see our Southampton page, about 14 miles away.
Jobs for new build mastic in PO30 works the same way as everywhere else we cover. We also cover Porchfield (1 mile north-east), Newtown (1 mile west), Great Thorness (1 mile north-east), Forest Side (2 miles east) and Noke Common (3 miles east). Within a short drive, we also cover Newport (3 miles east), Ryde (9 miles east), Cowes (4 miles north-east), Sandown (10 miles south-east), Shanklin (10 miles south-east) and Ventnor (11 miles south-east). For island and remote addresses, the job takes a little more planning, so mention it when you ask for a quote.
What’s near Locksgreen
Typical jobs here are in homes near Sportsman's Rest pub and the streets around them. Nearby you will also find Calbourne Water Mill And Rural Museum (3 miles south-west) and Carisbrooke Castle (3.1 miles south-east). For a walk, there’s Brighstone Down.
Should I try it myself first?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Why deal with it now?
A hairline gap at a skirting can wait, but a leaking seal cannot. If you’re unsure which you have, phone 0345 464 0079 or email us with photos and we will give you a straight answer. In a small place like Locksgreen, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Why choose Mr Mastic in Locksgreen
- Sealant colour chosen to suit
- One-year guarantee on every job
- ARBOMaster approved applicator
- 20+ years of sealant experience
Take a look at our cost guide and customer reviews.
Your questions about new build mastic in Locksgreen
What guarantee comes with new build mastic in Locksgreen?
Every job comes with our 12-month guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Can you do new build mastic in Locksgreen?
Yes, Locksgreen is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or email us with a few details of the job.
Will the old sealant be removed?
Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Do you have insurance?
Yes. We are fully insured for domestic and commercial work.
Why does sealant fail so quickly in new builds?
Lots of new homes see sealant crack early, because the house is drying and settling. Rushed application on dusty surfaces makes it worse.
Where is Mr Mastic based?
Our base is Crawley. Our area covers South East England, London and Scotland.
Do you use white or clear sealant?
White and clear are the most common, but other colours are available. We choose one to suit the room before we begin.
Are you an approved applicator?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
How the visit works
On the day, we start by going over the job with you. Surfaces next to the work are protected before any work begins. Most jobs take a few hours in a single home. In a small place like Locksgreen, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we work through your snagging list or plot schedule with you.
- Failed or untidy sealant is cut out completely.
- We clean off dust from the build and prime the surfaces where the product needs it.
- A sealant chosen for each area goes in and is tooled smooth.
- We check every joint and tell you how long each needs to cure.
How to prepare
- Clear items away from the joints we’re working on
- Let us know about stairs, lifts or work at height
- On commercial sites, let us know about site rules
How to get a quote
Getting a quote is simple: tell us what needs doing and where, and roughly how big it is. Photos by email help us understand the job, and we’ll take it from there.
Related advice
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What we can’t put right
We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:
- Baths and trays that move too much for sealant to cope with
- Broken tiles or a split tray
- Settlement cracks that need a surveyor
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly before booking.
Where we work in Locksgreen
- Skirting & floors
- Kitchens
- Show homes
- Plot handovers
- Bathrooms & en suites
- Windows & doors
How we quote for new build mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- Access and height
- The old material and how stubborn it is
- Working hours on commercial sites
- The number and length of the joints
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or email us.
What to tell us for a quote
When you contact us, it’s useful to know:
- The rough size of the job
- Where the job is, and your postcode
- Whether it has been sealed before
- Whether it’s a home or a business
Need a quote? Please call 0345 464 0079 or email us and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Different surfaces, different methods
Plot handovers
Good preparation at handover saves snagging later. We clean out building dust before sealing and primer used where needed.
Windows and doors
Draughts around new frames are often a sealant gap. We check and reseal the frame edges.