Hampshire · England
New-build mastic & snagging in Holbury, Hampshire
We cover Holbury for plot mastic for developers and snagging failed sealant in new homes. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Frame joints opening as the plaster dries
- Leaking shower tray seals in a new home
- Joints pulling apart as timber shrinks
Joints and finishes in Holbury homes
Holbury is close to the coast. Plot mastic on new homes near the coast takes more weather than it would inland, so it’s worth checking at snagging. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Around Holbury, as everywhere, new build mastic is only as good as the preparation behind it. If you’ve bought a new home near Netley station, the sealant around baths, showers and frames is worth checking in the first year or two.
Holbury is about 2 miles south of Hythe, in Hampshire. Whether you’re in the middle of Holbury or further out, new build mastic is available for homes and businesses alike, from flats and houses to offices and hotels. We cover 683 towns and villages across Hampshire, from the larger towns to small villages. For nearby work, see our Southampton page (6 miles or so).
Postcode districts we cover here for new build mastic: SO45. That includes homes and businesses on Beechwood Road, Park Hill Close and Pondhead Close and the roads around them. We also cover Little Holbury (1 mile north-west), Roughdown (1 mile south), Hardley (1 mile north), Blackfield (1 mile south-east) and Langley (1 mile south). Within a short drive, we also cover Gosport (10 miles east), Eastleigh (10 miles north), Fareham (8 miles east), Totton (8 miles north-west), Chandler's Ford (11 miles north) and Hedge End (7 miles north-east).
What’s near Holbury
We work in homes and buildings around The New Forest Academy. The closest station to Holbury is Netley station, roughly 3.8 miles north-east of the centre. Well-known places in the area include Beaulieu Abbey And Display Of Monastic Life (3.1 miles west) and Calshot Castle (3.4 miles east). Not far away are Mercury Marshes.
About our new build mastic in Holbury
For builders and developers, we work through plots to the schedule you give us. Bathrooms, en suites, kitchens, frames and skirting are sealed ready for handover. We work on skirting & floors, plot handovers and windows & doors, and the jobs we see most are cracked sealant around new window and door frames and worktop and upstand sealant coming away.
If you’ve bought a new home in or near Holbury, the first year or two is a good time to check the sealant. Common snags include open skirting joints, lifting shower seals and gaps around frames.
The work is covered for a year after we finish. If there’s a problem with it, please phone 0345 464 0079 or drop us an email.
- Location
- Holbury (SO45)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Why act early in Holbury
The builder is normally the first port of call while the snagging or warranty period runs. If it’s slow, or the same joint keeps failing, a proper reseal from a specialist is the next step. Around Holbury, water from a failed joint in an older home can soak into timber and plaster, and that’s a much bigger job than renewing the sealant.
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
What you get with us
- Anti-fungal silicone where joints get wet
- We leave the area clean and tidy
- Colour picked to suit the job
- Rated 4.9 stars on Google
See what affects the cost and what customers say.
Surface by surface
Show homes
Bathrooms, kitchens and frames in show homes are sealed or resealed to a neat finish. Tell us when the home is open so we can plan around it.
Kitchens
Worktops in new homes can move slightly as the house dries, which opens gaps along the back. A fresh flexible bead closes them.
Nearby places to Holbury
Also in Holbury
Looking after it afterwards
After the cure time, these simple habits help:
- Do not seal over failed sealant yourself
- Act quickly if a seal starts to leak
- Use the extractor fan every time you shower
- Keep photos and emails about snagging items
Wipe the sealant with warm soapy water. Avoid abrasive pads and strong solvents, which can damage the surface.
Early snagging is easier snagging. Left alone, a small crack can become a leak in a busy bathroom.
How the visit works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes anything from a few hours to several days, depending on the number of plots, and the area is left clean. Parking around Holbury is normally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- First we work through your snagging list or plot schedule with you.
- The old bead comes out in full, with no layer left behind.
- Surfaces are cleaned of building dust and primed where needed.
- New sealant suited to each joint is applied and tooled neatly.
- Finally, each room is checked and you’re given the cure time.
Before we arrive
- Move anything stored near the joints
- Mention any tricky access
- Let us know about earlier repairs to the joints
How to get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Read more
Your questions about new build mastic in Holbury
I let a flat near Netley station. Can you help?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before work begins.
Will you come out to Holbury?
Yes, Holbury is covered. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can you do plot mastic on a new development?
Yes. We carry out plot mastic and second-fix sealing for builders and developers. Send us the plot schedule and we will quote.
Are you fully insured?
Yes. Mr Mastic is fully insured.
Will you just run a new bead over the existing one?
No. Over-sealing traps mould and water and soon fails. We remove every bit of the old bead before resealing.
Will it make a mess?
We keep the work tidy. Nearby surfaces are protected, and we clear up when we are done.
Is it worth resealing while the house is still settling?
Any seal that’s leaking should be redone straight away. Cosmetic gaps can wait until the first year or two of movement has passed.
Should I go to my builder first?
While the snagging or warranty period runs, the builder should be your first contact. If they’re slow or the fix does not last, we can help.
What affects the quote in Holbury
Call for a quick quote. What matters most is:
- Whether there’s mould to deal with
- The size of the job
- The product the joint needs
- Working hours on commercial sites
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
What to tell us for a quote
To help us quote quickly, please include:
- The type of property
- Where the property is
- Any access issues, like height or stairs
- How many joints, rooms or windows are involved
Need a quote? Please ring 0345 464 0079 or send us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Can I do it myself?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Movement caused by a poorly fitted tray or bath
- Disputes or warranty claims with your builder
- Damaged fittings that need replacing
If you’re not sure, just ring 0345 464 0079 or email us and we will give you a straight answer before booking.
Surfaces we seal
- Kitchens
- Plot handovers
- Bathrooms & en suites
- Show homes
- Windows & doors
- Skirting & floors