Hampshire · England
Clanville New Build Mastic
Plot mastic for developers and snagging failed sealant in new homes in Clanville, with a one-year guarantee on every job. Call for a quick quote.
- Joints pulling apart as timber shrinks
- New-build shower sealant that has already split
- Sealant work across a run of new homes
What sealant work cannot fix
We will not take on work that will not last, so here’s what sealant cannot put right:
- Your warranty claim itself, which is between you and the builder
- Movement caused by a poorly fitted tray or bath
- Plumbing faults behind the sealant
If you’re not sure, just phone 0345 464 0079 or drop us an email and we’ll give you a straight answer before booking.
Surfaces we seal
- Show homes
- Plot handovers
- Kitchens
- Bathrooms & en suites
- Skirting & floors
- Windows & doors
New build mastic in Clanville
Developers send us the plot schedule and we work through it. Bathrooms, en suites, kitchens, frames and skirting are sealed ready for handover using the right product for each joint. Typical jobs include sealant applied over dusty or wet surfaces and joints pulling apart as timber shrinks, across kitchens, skirting & floors and plot handovers.
Older homes in small places like Clanville often have timber floors that move with the seasons, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
Your job is guaranteed for a year, as with all our work.
- Place
- Clanville (SP11)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What the job involves on each surface
Bathrooms and en suites
New-build bathrooms and en suites are where sealant fails most often. We cut out the failed bead, clean and prime, and reseal with anti-fungal sanitary silicone.
Show homes
Bathrooms, kitchens and frames in show homes are sealed or resealed to a neat finish to a tidy standard. Tell us when the home is open so we can plan around it.
Common problems we fix in Clanville
Baths and trays settle under load once the home is lived in. A bath sealed empty drops slightly when filled, straining the joint.
Look out for any of the following:
- Internal frame sealant that has split
- New-build shower sealant that has already split
- Messy sealant that spoils new finishes
- Second-fix sealing on new plots
For new homes near Andover 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
- Is the old sealant removed completely?
- What the cure time is
Also near Clanville
What else we do in Clanville
FAQs for Clanville
I let a flat near Andover station. Can you help?
Yes, landlords and agents are among the people we work for. Just ring 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear quote.
Do you cover Clanville for new build mastic?
Yes. Our work covers London and the South East, and Clanville is part of that. Just ring 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear price.
What colour sealant will you use?
We use white, clear or a colour to suit the finishes. Tell us what you’d like when you get a quote.
What does new build mastic cost?
Every job is different, so each one gets its own quote. For a quick quote, ring 0345 464 0079 or send us an email and let us know what needs doing and where.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us, and we are fully insured.
Where is Mr Mastic based?
We work from Crawley. Our applicators cover Clanville, along with the rest of our area.
Will you just run a new bead over the existing one?
No. Sealing over old sealant looks fine for a few weeks, then lifts. We remove every bit of the old bead before resealing.
Do you work through snagging lists?
Yes. Send us the sealant items on the list, with photos if you can. We’ll flag anything that needs another trade.
Keeping the joints in good condition
Good habits help new joints last longer. Our tips:
- Get a leaking seal dealt with right away
- Avoid scourers and strong chemicals on sealant
- Use the extractor fan every time you shower
- Look at the sealant regularly in the first couple of years
Photograph failed sealant before it’s redone and keep the builder’s replies. It helps if anything else comes up during the warranty period.
Mould takes hold quickly in sealant that has gaps or lifted edges. Dealing with it before it goes black keeps the job straightforward.
What happens if it’s left?
Running a new bead over the builder’s sealant might look tidy for a few weeks, but it will not bond to the old layer. Taking it all out and starting again is the only way to get a lasting seal. Older cottages and farmhouses around Clanville can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Why choose Mr Mastic in Clanville
- Tidy, careful work
- Domestic, commercial and hotel work
- Rated 4.9 stars on Google
- White, clear, grey or coloured to suit, where the product allows
Landlords, agents and businesses in Clanville
We also work for property managers and facilities teams. Several sites can go on one quote, and we are fully insured.
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.
New build mastic in Clanville: local notes
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
In and around Clanville, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Clanville is about 4 miles north-west of Andover, in Hampshire. From the centre of Clanville to the outskirts, we cover new build mastic for every kind of property, from flats and houses to offices and hotels. Clanville is one of 683 places in Hampshire where we work. You can also see our page for Southampton, roughly 23 miles from Clanville.
Jobs for new build mastic in SP11 is quoted and booked the same way as anywhere else. Other places close to Clanville include Appleshaw (1 mile south-west), Redenham (1 mile west), Penton Mewsey (1 mile south-east), Chute Forest (1 mile north-west) and Penton Grafton (1 mile south). Larger places within reach include Andover (4 miles south-east), Tidworth (5 miles west), Weeke (15 miles south-east), Ludgershall (4 miles west), Whitchurch (9 miles east) and East Anton (4 miles east).
Near you in Clanville
Locally, jobs take us to homes and businesses close to The Lion pub, among other places. The nearest railway station is Andover station, about 3.2 miles south-east of the centre. Well-known places in the area include Andover Museum (3.7 miles south-east) and Andover War Memorial Hospital (2.9 miles south-east). The countryside around Clanville includes Anton Lakes and Mill Lake.
How the visit works
Good joint work is mostly 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 a few hours in a single home. Somewhere as small as Clanville, 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 work begins.
- 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
- For indoor joints, keep the area dry beforehand if you can
- On commercial sites, let us know about site rules
- Mention any leaks or damp you’ve noticed
How to get a quote
For a quote, phone 0345 464 0079 or drop us an email with the location and a short description of the problem. We’ll give you a clear price before any work starts.