Hampshire · England
Owslebury Bottom New Build Mastic
Professional new build mastic in and around Owslebury Bottom, with every bit of old sealant taken out first.
- Frame joints opening as the plaster dries
- Sealant work across a run of new homes
- Sealant applied over dusty or wet surfaces
Common problems we fix in Owslebury Bottom
New homes are full of moisture from plaster, screed and concrete, which takes a year or two to dry out. Drying timber shrinks and pulls joints apart, and sealant that can’t keep up splits.
Any of these means the joints need attention:
- Frame joints opening as the plaster dries
- Joints pulling apart as timber shrinks
- Gaps behind new kitchen upstands
- Messy sealant that spoils new finishes
For new homes near Shawford station, it’s worth checking the sealant early, while snags are still fresh.
Before booking anyone
- Who does the work, and how experienced they are
- Whether VAT is included
- What happens if they find a problem under the old sealant
- Whether you can choose the colour
New build mastic in Owslebury Bottom, done properly
Some owners wait for the first year’s movement before having joints redone. For small cosmetic gaps, that is reasonable, but a failed shower or bath seal shouldn’t wait. If you’re dealing with kitchen sealant that has pulled off the wall and messy sealant that spoils new finishes, we can help, on windows & doors, show homes and skirting & floors alike.
Around Owslebury Bottom, older homes often have timber floors that move through the year, which is why skirting and threshold joints need a flexible sealant, not filler.
All of our work is guaranteed for twelve months, in Owslebury Bottom and everywhere else we cover.

- Where
- Owslebury Bottom (SO21)
- Wider area
- Hampshire
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What the job involves on each surface
Show homes
We seal show-home bathrooms, kitchens and frames ready for viewings. We will plan around viewing times.
Skirting and floors
Where the floor meets a bath panel or kitchen plinth, the joint keeps mop water out. They get a flexible, water-resistant sealant.
Common questions in Owslebury Bottom
Is Owslebury Bottom in your area for new build mastic?
Yes. We work across London and the South East, and Owslebury Bottom is part of that. You can ring 0345 464 0079 or send us an email and let us know what needs doing.
Do you cover smaller places like Owslebury Bottom?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Is it worth trying it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.
Where are you based?
Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.
When is the sealant fully cured?
Cure times vary by product and the conditions. Before we leave, we will tell you the cure time.
Is there any odour?
It depends on the product. Some products have a noticeable smell, others very little.
What information do you need?
A short description and the location, plus pictures if you have them. We will ask anything else we need to know.
Can tenants book the work?
Yes, though it’s best to check with your landlord first. Many landlords are glad to have it sorted.
Landlord and commercial work in Owslebury Bottom
In hotels, rooms out of use cost money, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
DIY versus a professional finish
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.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
What affects the cost of new build mastic
The price is agreed before any work begins. It takes into account:
- Mould in or behind the old joints
- The product the joint needs
- The old material and how stubborn it is
- How many rooms, windows or areas are involved
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all play a part.
Helping us quote
What to tell us when you ask for a quote:
- What the problem is, such as mould, gaps, leaks or cracking
- Any access issues, like height or stairs
- If it’s domestic, commercial or a hotel
- A few photos by email, if you can
Want a quote for new build mastic? Please phone 0345 464 0079 or email us with a few details. We will explain what we’d do and give you a clear price before we start.
What we do, step by step
Every visit runs the same way: we check the joints, protect the area around them, do the work and clear up. Most jobs take a few hours for most snagging lists, longer for a run of plots. In a small place like Owslebury Bottom, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at why each joint failed, including any movement.
- We remove the failed sealant and clean the joints.
- Joints are dried and primed where the product calls for it.
- New sealant goes in, with baths filled first so they’re at their heaviest.
- The finished joints are checked and the cure times given.
Getting ready for the visit
- Let us know about earlier repairs to the joints
- Keep children and pets away from the work area
- For business premises, tell us about site rules or sign-in
Get a quote
Every job is quoted individually. Just call 0345 464 0079 or email us with the details.
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Places near Owslebury Bottom
Other services in Owslebury Bottom
What new build mastic looks like in Owslebury Bottom
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.
Around Owslebury Bottom, as everywhere, new build mastic is only as good as the preparation behind it.
Owslebury Bottom is about 4 miles south-east of Winchester, in Hampshire. Homes, rented property, offices and hotels in Owslebury Bottom can book us for new build mastic, old or new, large or small. The work is guaranteed for a year. Across Hampshire, we cover 683 places, Owslebury Bottom among them. We also work in Southampton, about 9 miles from Owslebury Bottom.
Postcode districts we cover here for new build mastic: SO21. If you’re just outside Owslebury Bottom, we cover Owslebury (1 mile south), Baybridge (1 mile south-east), Morestead (1 mile north), Hensting (1 mile south-west) and Lane End (3 miles east). We also work in nearby towns such as Winchester (4 miles north-west), Gosport (15 miles south), Eastleigh (5 miles south-west), Fareham (12 miles south), Horndean (13 miles south-east) and Totton (12 miles south-west).
Local landmarks in Owslebury Bottom
Typical jobs here are in homes near Ship Inn and the streets around them. The closest station to Owslebury Bottom is Shawford station, about 2.7 miles west. A little further out are The Gurkha Museum (3.5 miles north-west) and Wolvesey Castle (3.6 miles north-west). For a walk, there’s Hockley Meadows and Twyford Down.
What happens if it’s left?
The builder is usually the first port of call while the snagging or warranty period runs. If it keeps failing or isn’t dealt with, we can reseal it properly. Older cottages and farmhouses around Owslebury Bottom can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Doing several joints on one visit is generally more efficient than separate visits. We will give you a clear quote for the lot.
Why Owslebury Bottom customers choose us
- Arbo and Everbuild products
- White, clear, grey or another colour, product permitting
- A 12-month guarantee on all work
- We leave the area clean and tidy
