Hampshire · England
New-build mastic & snagging in Westley, Hampshire
New-build sealant joints in Westley need attention? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- New-build shower sealant that has already split
- Sealant that never bonded to the surface
- Second-fix sealing on new plots
Questions from Westley
Do you cover smaller places like Westley?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you work for landlords with property near Winchester station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can phone 0345 464 0079 or email us with the details for a clear quote.
Is there any odour?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
Are you insured?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
Why does sealant fail so quickly in new builds?
A new house dries and settles for a year or two, and sealant is often rushed onto dusty, unprimed surfaces. Either can make it fail early.
Is it messy?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Is it worth resealing while the house is still settling?
Where water is getting through, don’t wait. Small gaps that are just cosmetic can be resealed once movement has slowed.
My new home is still under warranty. Should I contact you?
Start with the builder if you’re in the snagging or warranty period. Once that is done, or if they will not put it right, we can reseal it properly.
About our new build mastic in Westley
A new house keeps drying out and settling for its first couple of years. Timber shrinks, plaster dries and baths and trays bed down, and sealant applied in a hurry at handover can split. We work on windows & doors, kitchens and plot handovers, and the jobs we see most are sealant applied over dusty or wet surfaces and leaking shower tray seals in a new home.
In a village or hamlet like Westley, 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.
Each job carries a 12-month guarantee.
- Location
- Westley (SO21)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
New homes and floors in Westley
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Around Westley, as everywhere, new build mastic is only as good as the preparation behind it.
Westley is about 4 miles north-west of Winchester, in Hampshire. From the centre of Westley to the outskirts, we cover new build mastic for every kind of property, from flats and houses to offices and hotels. 683 places in Hampshire are on our list, from the larger towns to small villages. For nearby work, see our Southampton page (12 miles or so).
Work in SO21 is quoted and booked the same way as anywhere else. New build mastic is available to properties on Hillside Road, Library Lane and Chute Hill and the roads around them. If you’re just outside Westley, we cover Sparsholt (1 mile south-east), Littleton (2 miles east), Harestock (3 miles east), Weeke (3 miles east) and Oliver's Battery (3 miles south-east). Within a short drive, we also cover Winchester (4 miles south-east), Eastleigh (8 miles south), Andover (9 miles north-west), Totton (13 miles south-west), Chandler's Ford (7 miles south) and Hedge End (12 miles south).
Near you in Westley
We work in homes and buildings around The Plough Inn and the streets around them. Westley’s nearest station is Winchester station, roughly 3.4 miles east of the centre. Other landmarks nearby include Winchester Castle (3.5 miles south-east) and Balfour Museum of Hampshire Red Cross History (2.8 miles south-east). Green spaces nearby include Winnall Moors.
Quotes for new build mastic in Westley
The quote reflects the job in front of us. We take into account:
- Whether there’s mould to deal with
- The product the joint needs
- The old material and how stubborn it is
- How many rooms, windows or areas are involved
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Asking for a quote
There’s no need for technical detail. Just tell us:
- If someone has resealed it before
- Roughly how big the job is
- The problem you’ve noticed
- Where the job is, and your postcode
We don’t publish a price list, because every job is different. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or drop us an email.
Landlords, agents and businesses in Westley
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Landlords and letting agents in Westley can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.
Towns and villages near Westley
Other services in Westley
Can I do it myself?
If you are 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.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
When it is not the sealant
To be straight with you, some problems need a different trade:
- Deciding who is responsible under a builder’s warranty
- Leaking fittings rather than failed sealant
- Settlement cracks that need a surveyor
Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly.
Joints and surfaces we work on
- Plot handovers
- Windows & doors
- Show homes
- Skirting & floors
- Kitchens
- Bathrooms & en suites
The process
You do not need to clear the whole room or building, only the area right around the joints. Everything nearby is protected, and the job takes anything from a few hours to several days, depending on the number of plots in most cases. For a village or hamlet like Westley, 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 going through the snagging items or plot schedule with you.
- Every bit of the old builder’s sealant is cut out.
- We clean out the dust and grit left from the build.
- We prime where needed and apply a sealant suited to each joint.
- We tool every joint neatly and tell you when each area can be used.
Before we arrive
- Where the joints are inside, avoid wetting them before we arrive
- Keep pets and children clear of the area while we work
- Let us know about parking restrictions
How to get a quote
Asking for a quote is easy: let us know the job and the location and its rough size. Photos by email help us understand the job, and we’ll take it from there.
Advice
When to call us in Westley
Sealant is often one of the last jobs before handover. Dusty, unprimed joints are common, and the sealant sits on grit instead of the surface.
Most people get in touch after spotting one of these:
- Untidy sealant flagged on a snagging list
- Gaps between new skirting and floors
- Gaps behind new kitchen upstands
- Beads laid onto grit and dust from the build
For new homes near Winchester station, it’s worth checking the sealant early, while snags are still fresh.
What your quote should include
- How much experience the applicator has
- Which sealant they’ll use, and why
- Whether all the old sealant comes out first
- Whether they’re fully insured
Why deal with it now?
If you are still in the builder’s snagging or warranty period, ask them to put it right first. If it keeps failing or isn’t dealt with, we can reseal it properly. In a small place like Westley, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
Why Westley clients choose us
- An ARBOMaster approved applicator
- A 12-month guarantee on all work
- Experience in homes, commercial sites and hotels
- Arbo and Everbuild products