Hampshire · England
New-build mastic & snagging in High Cross, Hampshire
Plot mastic for developers and snagging failed sealant in new homes for householders, landlords and businesses in High Cross. Fully insured, ARBOMaster approved and guaranteed for a year.
- Frame joints opening as the plaster dries
- Gaps between new skirting and floors
- Messy sealant that spoils new finishes
New build mastic in High Cross: local notes
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you’ve bought a new home near Petersfield station, the sealant around baths, showers and frames is worth checking in the first year or two.
High Cross is about 3 miles north-west of Petersfield, in Hampshire. High Cross gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. High Cross is one of 683 places in Hampshire where we work for new build mastic. We also work in Portsmouth, about 16 miles from High Cross.
Postcode districts we cover here for new build mastic: GU32. If you need new build mastic at a property on High Cross Lane, Dellfield and Deans Dell or a nearby road, our applicators can take on the job. Nearby, we also carry out new build mastic in Froxfield Green (1 mile south-west), Oakshott (2 miles north-east), Langrish (2 miles south), Stroud (2 miles south) and Steep (2 miles east). Larger places within reach include Winchester (15 miles west), Havant (12 miles south), Horndean (9 miles south), Alton (8 miles north), Waterlooville (11 miles south) and Petersfield (3 miles south-east).
What’s near High Cross
The nearest railway station is Petersfield station, about 2.6 miles south-east of the centre. Well-known places in the area include Petersfield Community Hospital (2.7 miles south-east) and Bear Museum (3.1 miles south-east). The countryside around High Cross includes Wheatham Hill and Liss Riverside Railway Walk South.
About our new build mastic in High Cross
For builders and developers, we work through plots to the schedule you give us. We seal bathrooms, kitchens, windows, doors and skirting so plots are ready to hand over using the right product for each joint. If you have second-fix sealing on new plots and joints pulling apart as timber shrinks, we can help, on plot handovers, bathrooms & en suites and skirting & floors alike.
For a small place like High Cross, the journey and access are planned in advance, and the work itself is the same as on any site.
We stand behind the work with a 12-month guarantee.
- Location
- High Cross (GU32)
- Wider area
- Hampshire
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Looking after it afterwards
Looking after new joints is easy:
- Check bath and shower seals every few months as the house settles
- Report sealant problems to your builder during the snagging period
- Do not wait for the house to settle if water is getting through
- Record problems with dated photos
Avoid standing on the rim of the bath or the edge of the tray. If a bath or tray moves when you stand in it, get it looked at.
A seal that splits early is often a sign of movement. Have it resealed, and the tray or bath checked, before it gets worse.
Common problems we fix in High Cross
Fresh sealant can be knocked or cut by trades finishing off. If it’s disturbed before curing, the joint can be left weak and it shows once the home is in use.
Keep an eye out for any of the following:
- Cracks appearing as a new home settles
- Skirting joints opening in the first winter
- Sealant applied over dusty or wet surfaces
- Shower seals failing in the first year or two
Around High Cross, as everywhere, new build mastic is only as good as the preparation behind it.
What to look for in a quote
- What insurance they hold
- Whether you can choose the colour
- Whether VAT is included
- Who does the work, and how experienced they are
Places near High Cross
What else we do in High Cross
DIY versus a professional finish
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
A careful DIYer can reseal a simple joint, 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.
Questions from High Cross
Do you cover High Cross for new build mastic?
Yes. Our work covers London and the South East, and High Cross is part of that. You can call 0345 464 0079 or email us and let us know what needs doing, and we’ll give you a clear price.
Do you cover smaller places like High Cross?
Yes. High Cross is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you work for letting agents?
Yes, often. Several properties can be quoted together.
Do you take out the old sealant first?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Will there be a smell?
Some sealants have a smell while they cure, which fades as it sets. Ventilation helps.
Is there a guarantee?
Yes. All our work carries our one-year guarantee.
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.
When is the best time to reseal in a new build?
For failed seals that let water through, the best time is now. For small cosmetic gaps, waiting until the house has settled can save doing them twice.
Quotes for new build mastic in High Cross
Every job gets its own quote. This is what makes a difference:
- Whether there’s mould to deal with
- Working hours on commercial sites
- The number of rooms or windows
- Access and height
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first and agree the price before starting.
Asking for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- The problem you’ve noticed
- Photos by email, if that is easy
- Where the job is, and your postcode
- How we’d reach the joints
If you are in High Cross and need new build mastic, call 0345 464 0079 or email us. Tell us what the problem is and where, and you’ll get a clear quote before we start.
How the job changes by surface
Bathrooms and en suites
Trays and baths in new builds settle as they’re used. The joint is stripped back before the new bead goes in with baths filled first.
Plot handovers
Taking time over preparation reduces return visits. Dust from the build is removed first.
How the visit works
You do not need to clear the whole room or building before we come, only the area right around the joints. Everything nearby is protected, and the job takes anything from a few hours to several days, depending on the number of plots for a typical job. For a village or hamlet like High Cross, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We go through the snagging list or plot schedule and agree the joints to do.
- We cut out every bit of the failed or messy sealant.
- Each joint is cleaned of dust and grit, then primed if required.
- New sealant suited to each joint is applied and tooled neatly.
- Finally, each room is checked and you are given the cure time.
How to prepare
- Keep children and pets away from the work area
- Let us know about parking restrictions
- Let us know about earlier repairs to the joints
How to get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved and give you a clear price.
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Landlords, agents and businesses in High Cross
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.