Hampshire · England
New-build mastic & snagging in Andover Down, Hampshire
New build mastic for Andover Down and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Kitchen sealant that has pulled off the wall
- Sealant that never bonded to the surface
- Untidy sealant flagged on a snagging list
New build mastic in Andover Down, done properly
Failed shower seals, gaps along the skirting and messy beads are common items on a new-home snagging list. If you’re still within the builder’s snagging or warranty period, tell them first. We work on windows & doors, skirting & floors and kitchens, and people most often call us about gaps opening as the house dries out and settles and beads laid onto grit and dust from the build.
In a village or hamlet like Andover Down, new homes are more likely to be a barn conversion or a handful of houses than a big estate. Each still needs its sealant and floor joints finished properly.
Your job is guaranteed for a year, as with all our work.
- Where
- Andover Down (SP11)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Keeping the joints in good condition
How long the joints last depends on use and care. Here’s what we suggest:
- Clean sealant with mild detergent, not abrasives
- Follow the cure time we give you
- Put sealant faults on your snagging list early
- Avoid running a DIY bead over the old one
Ventilation matters in a new home, which is still drying out. Use the extractor fan or open a window after showers so moisture doesn’t sit on the sealant.
Early snagging is easier snagging. Left alone, a small crack can become a leak over time.
Common problems we fix in Andover Down
When the heating goes on in the first winter, the house dries fast. Skirting, frames and worktops pull away slightly.
These are the problems we are asked about most:
- New-build shower sealant that has already split
- Gaps behind new kitchen upstands
- Gaps opening as the house dries out and settles
- Gaps between new skirting and floors
Around Andover Down, as everywhere, new build mastic is only as good as the preparation behind it.
What your quote should include
- What the cure time is
- Whether the sealant suits the joint
- Which colour the sealant will be
- What happens if the job turns out different
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Nearby places to Andover Down
More services for Andover Down
Landlord and commercial work in Andover Down
We also work for property managers and facilities teams in Andover Down and across Hampshire. Several sites can be quoted together, and we’re fully insured.
Letting agents often deal with us directly. Tell us the address, the job and how access works.
What we do, step by step
We bring everything the job needs with us, so you don’t need to buy or prepare anything. Once we have agreed what’s being done, the area is protected and the work begins. It normally takes a few hours for most snagging lists, longer for a run of plots. For a village or hamlet like Andover Down, 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 go through the snagging list or plot schedule and agree the joints to do.
- The old bead comes out in full, with no layer left behind.
- We clean off dust from the build and prime the surfaces where the product needs it.
- We apply a sealant that suits each joint and tool it to a neat finish.
- Each area is checked and left with its cure time.
Before we arrive
- Let us know if you’ve seen damp or leaks
- Where the joints are inside, avoid wetting them before we arrive
- Mention if the joints have been sealed before
How to get a quote
Want a quote for new build mastic? Please ring 0345 464 0079 or email us with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Advice
Why it’s worth doing now in Andover Down
Running a new bead over the builder’s sealant might look tidy for a few weeks, but it cannot bond to what’s underneath. A lasting seal starts with removing the old one completely. In a small place like Andover Down, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part.
Why choose Mr Mastic in Andover Down
- Colour agreed with you before we start
- ARBOMaster approved applicator
- Fully insured
- Old sealant always removed completely
See how sealant jobs are priced and our reviews.
New build mastic around Andover Down
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For new homes near Andover station, it’s worth checking the sealant early, while snags are still fresh.
Andover Down is about 2 miles east of Andover, in Hampshire. Across the SP11 area, our applicators can take on new build mastic. Across Hampshire, we cover 683 places, and Andover Down is one of them. For nearby work, see our Southampton page, about 20 miles away.
Every address in SP11 is within our area for new build mastic. If you need new build mastic at a property on London Road and The Middleway or anywhere close by, we can help. Other places close to Andover Down include Picket Piece (1 mile north), Finkley Down (1 mile north-west), Picket Twenty (1 mile south-west), Finkley (1 mile north-west) and East Anton (2 miles north-west). Further out, we also cover Basingstoke (15 miles east), Winchester (12 miles south-east), Romsey (15 miles south), Hyde (11 miles south-east), Tidworth (10 miles west) and Weeke (11 miles south-east).
Local landmarks in Andover Down
Around Andover Down, our work takes us to homes and buildings near Winton Community Academy and Winton Community Academy and the streets around them. The closest station to Andover Down is Andover station, about 2.6 miles west of the centre. Well-known places in the area include Andover War Memorial Hospital (2.6 miles west) and Finkley Down Farm Museum (1 mile north-west). Open spaces near Andover Down include Mill Lake and Anton Lakes.
Honest limits
To be straight with you, there are a few things sealant won’t fix:
- Your warranty claim itself, which is between you and the builder
- Settlement cracks that need a surveyor
- Leaks from pipes, valves or wastes, which need a plumber
If you’re not sure, just phone 0345 464 0079 or email us and we will give you a straight answer.
Where we work in Andover Down
- Windows & doors
- Kitchens
- Show homes
- Bathrooms & en suites
- Plot handovers
- Skirting & floors
FAQs for Andover Down
Do you work for landlords with property near Andover station?
Yes, rental work is part of what we do. You can call 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before we start.
Is Andover Down within the area you cover?
Yes, Andover Down is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
How much does new build mastic cost in Andover Down?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote and we’ll talk you through it.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Is the work guaranteed?
Yes. Each job is guaranteed for twelve months.
Do you work for hotels and businesses?
Yes, regularly. Larger jobs can be planned room by room or area by area.
Do you take on second-fix sealing for builders?
Yes. We take on second-fix sealant work across new plots. Good preparation keeps snagging to a minimum.