Hampshire · England
New-build mastic & snagging in Soberton, Hampshire
Plot mastic for developers and snagging failed sealant in new homes for Soberton, backed by a 12-month guarantee. Ask us for a quote.
- Sealant applied over dusty or wet surfaces
- Frame joints opening as the plaster dries
- Gaps behind new kitchen upstands
How to look after the new joints
How long the joints last depends on use and care. We suggest:
- Do not wait for the house to settle if water is getting through
- Resist patching a failed seal with a tube from the DIY shop
- Keep pictures and emails about snagging items
- Keep water off fresh sealant until it has cured
Keep the bathroom ventilated, especially in the first year. Use the extractor fan or open a window after showers to help keep mould away.
The sooner you deal with untidy or cracking sealant, the less there is to put right. Left alone, a small crack can become a leak in a busy bathroom.
About our new build mastic in Soberton
We carry out plot mastic and second-fix sealing for builders, and snagging reseals for new-home owners. Both get the same care over preparation, because that’s what rushed new-build sealant usually lacks. We work on windows & doors, kitchens and plot handovers, and people most often call us about cracked caulk along new skirting and shower seals failing in the first year or two.
For a small place like Soberton, the journey and access are planned in advance, and the work itself is the same as on any site.
The work is covered for a year after we finish. If there’s a problem with it, please phone 0345 464 0079 or email us.
- Location
- Soberton (SO32)
- Wider area
- Hampshire
- Cover
- One year on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
How the job changes by surface
Kitchens
As a new house dries, worktops and walls shift a little, which opens gaps along the back. We reseal them with a flexible sealant.
Windows and doors
External mastic around new windows and doors is sometimes rushed or missed. It’s resealed with an exterior sealant suited to the frame and wall.
Joints and finishes in Soberton homes
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For jobs in and around Soberton, choosing the right material for each joint is as important as a tidy finish.
Soberton is about 6 miles north-west of Horndean, in Hampshire. Every kind of property in Soberton can book us for new build mastic, old or new, large or small. Every job comes with our 12-month guarantee. Soberton is one of 683 towns and villages in Hampshire we cover. For nearby work, see our Portsmouth page, about 10 miles away.
We work across the SO32 postcode area for new build mastic. New build mastic is available to properties on High Street, Station Road and Long Road. If you are just outside Soberton, we cover Droxford (1 mile north), Brockbridge (1 mile north), Soberton Heath (2 miles south), Hill Grove (2 miles west) and Southend (2 miles south). We also work in nearby towns such as Winchester (11 miles north-west), Gosport (10 miles south), Havant (9 miles south-east), Eastleigh (9 miles west), Fareham (7 miles south-west) and Horndean (6 miles south-east).
Local landmarks in Soberton
Typical jobs here are in homes near White Lion Inn. Nearby you will also find Knowle Hospital (5.4 miles south-west) and Bishop's Waltham Museum (3.7 miles west). The countryside around Soberton includes Beacon Hill and St Clair's Meadow.
Other services in Soberton
Your questions about new build mastic in Soberton
What guarantee comes with new build mastic in Soberton?
Every job comes with our one-year guarantee, wherever it is. We are also fully insured and ARBOMaster approved.
Do you cover smaller places like Soberton?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
My new home is still under warranty. Should I contact you?
Report it to the builder first while you are covered. Once that is done, or if they will not put it right, we can reseal it properly.
I rent my home. Can I book you?
We can work for tenants, landlords or agents. Just make sure your landlord agrees.
How long will you be here?
As a guide, most jobs take a few hours in a single home. Bigger jobs take longer, and we will tell you how long to expect.
Can you do plot mastic on a new development?
Yes. We seal plots to the developer’s programme ready for handover. Get in touch with the number of plots and the scope and we’ll quote.
What information do you need?
Tell us what needs doing and where, plus pictures if you have them. We will ask anything else we need to know.
Is it messy?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
What affects the cost of new build mastic
The quote reflects the job in front of us. We take into account:
- When we can work, for business premises
- The number and length of the joints
- The product the joint needs
- Whether there’s mould to deal with
Leaving a failed joint generally makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, ring 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
What we need to know
When you contact us, 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
- If someone has resealed it before
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 email photos if that is easy.
Signs you need new build mastic in Soberton
Sealant applied onto damp surfaces doesn’t bond well. Site programmes do not always leave time for joints to dry before the sealant goes on.
It’s worth asking for a quote if you see:
- Cracked caulk along new skirting
- Sealant applied over dusty or wet surfaces
- Untidy sealant flagged on a snagging list
- Shower seals failing in the first year or two
In and around Soberton, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Questions to ask before you book
- The length of the guarantee
- Whether you can choose the colour
- What preparation is included
- Whether the sealant suits the joint
How it works
You don’t need to clear the whole room or building before we come, only the area right around the joints. We protect the rest, and the job takes a few hours in a single home in most cases. Somewhere as small as Soberton, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each joint is checked for movement before we start.
- Old sealant is cut out and the joints cleaned.
- We make sure the joints are dry and prime them if needed.
- Baths are filled with water, then the new sealant is applied.
- The finished joints are checked and the cure times given.
Before we arrive
- Try not to wet indoor joints just before the visit
- Tell us if parking is tricky
- Mention any sign-in or site rules at work premises
Get a quote
There’s no standard price list. Instead, we give you a clear price for your job. To arrange one, phone 0345 464 0079 or drop us an email.
Advice
Landlord and commercial work in Soberton
If you manage several properties in or around Soberton, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.
Housing providers, facilities teams and property managers book us too. Several sites can be quoted together.