Hampshire · England
Hensting New Build Mastic
New build mastic in Hensting from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Skirting joints opening in the first winter
- Shower seals failing in the first year or two
- Worktop and upstand sealant coming away
New build mastic in Hensting
Our new-build work comes in two parts: plot mastic for developers, and putting right failed sealant for people who’ve bought a new home. Both get the same care over preparation, because that is what rushed new-build sealant usually lacks. If you have worktop and upstand sealant coming away and leaking shower tray seals in a new home, we can help, on kitchens, bathrooms & en suites and plot handovers alike.
For a small place like Hensting, the journey and access are planned in advance, and once on site, the job is the same as anywhere.
All our work is covered by our 12-month guarantee, wherever you are in Hampshire.
- Place
- Hensting (SO50)
- Region
- Hampshire
- Cover
- 12 months on all our work
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
New build mastic around Hensting
London and the South East are among 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 new homes near Shawford station, it’s worth checking the sealant early, while snags are still fresh.
Hensting is about 3 miles north-east of Eastleigh, in Hampshire. Whether you are in the middle of Hensting or further out, new build mastic is available for homes and businesses alike. We cover 683 towns and villages across Hampshire, from the larger towns to small villages. For nearby work, see our Southampton page (7 miles or so).
Work in SO50 works the same way as everywhere else we cover. Other places close to Hensting include Owslebury (1 mile north-east), Owslebury Bottom (1 mile north-east), Baybridge (2 miles east), Morestead (2 miles north) and Lane End (4 miles north-east). Within a short drive, we also cover Winchester (4 miles north), Gosport (15 miles south-east), Eastleigh (3 miles south-west), Fareham (11 miles south), Horndean (14 miles south-east) and Totton (11 miles south-west).
Around Hensting
We work in homes and buildings around Ship Inn and the streets around them. The nearest railway station is Shawford station, roughly 2.2 miles north-west of the centre. Other landmarks nearby include St John's Rooms And Chapel (4.3 miles north) and Eastleigh Museum (3.5 miles south-west). The countryside around Hensting includes Shawford Down and Twyford Down.
Aftercare tips
Good habits help new joints last longer. Our tips:
- Raise failed sealant with the developer while you are covered
- Use the extractor fan every time you shower
- Get a leaking seal dealt with right away
- Photograph failed sealant before it’s redone
Keep the bathroom ventilated, especially in the first year. Use the extractor fan or open a window after showers so moisture doesn’t sit on the sealant.
Mould takes hold quickly in sealant that has gaps or lifted edges. Resealing before mould gets in keeps the job straightforward.
Also in Hensting
How the job changes by surface
Bathrooms and en suites
Trays and baths in new builds settle as they’re used. We reseal once the old bead is fully out and baths are filled before sealing.
Windows and doors
A draught at a new window can be a missed or failed joint. We check and reseal the frame edges.
Questions from Hensting
Do you cover Hensting for new build mastic?
Yes. We work across London and the South East, and Hensting is part of that. You can call 0345 464 0079 or send us an email and let us know what needs doing.
Can you help a landlord with a rental near Shawford station?
Yes. We work for landlords and letting agents as well as householders. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
Are you fully insured?
Yes. We are fully insured, and we have been doing sealant work for more than 20 years.
Where are you based?
Our base is in Crawley, and we cover South East England, London and all of Scotland.
How long before the joint can be used?
Different products cure at different speeds, so follow the cure time we give you when we finish.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises. We can talk about working times when we quote.
Will there be a smell?
It depends on the product. Some products have a noticeable smell, others very little.
Honest limits
Before booking, it’s worth knowing the limits too:
- Leaking fittings rather than failed sealant
- Your warranty claim itself, which is between you and the builder
- Movement caused by a poorly fitted tray or bath
If you’re not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer.
Where we work in Hensting
- Bathrooms & en suites
- Skirting & floors
- Windows & doors
- Kitchens
- Plot handovers
- Show homes
Signs you need new build mastic in Hensting
Baths and trays settle under load once the home is lived in. If a bath wasn’t filled when it was sealed, the bead is stretched the first time it’s used.
It’s worth asking for a quote if you see:
- Cracks appearing as a new home settles
- Second-fix sealing on new plots
- Untidy sealant flagged on a snagging list
- Shower seals failing in the first year or two
In and around Hensting, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
What to look for in a quote
- Is VAT in the price?
- Is the old sealant removed completely?
- What the cure time is
- Which colour the sealant will be
What we do, step by step
Most of a good job is in the preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it normally takes anything from a few hours to several days, depending on the number of plots. For a village or hamlet like Hensting, 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.
- Failed or untidy sealant is cut out completely.
- Surfaces are cleaned of building dust and primed where needed.
- New sealant suited to each joint is applied and tooled neatly.
- We check every joint and tell you how long each needs to cure.
Preparing for the visit
- Mention any tricky access
- Where the joints are inside, avoid wetting them before we arrive
- Tell us if parking is tricky
Get a quote
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 add photos by email if you can.
Related advice
For landlords and businesses
In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
DIY versus a professional finish
If you do try it yourself, take your time over the 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.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.