Hampshire · England
New Build Mastic in Lee-on-the-Solent
Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Lee-on-the-Solent and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Cracked sealant around new window and door frames
- Second-fix sealing on new plots
- Leaking shower tray seals in a new home
New build mastic in Lee-on-the-Solent
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. Typical jobs include gaps opening as the house dries out and settles and leaking shower tray seals in a new home, across bathrooms & en suites, plot handovers and skirting & floors.
In and around Lee-on-the-Solent, floors range from older timber boards to tiles and newer finishes, each moving in its own way. The sealant at skirtings and thresholds has to suit the floor it meets.
Whatever the size of the job, it’s backed by our one-year guarantee.
- Place
- Lee-on-the-Solent (PO13)
- Wider area
- Hampshire
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
For landlords and businesses
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will quote.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
New build mastic in Lee-on-the-Solent: local notes
Lee-on-the-Solent 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. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you’ve bought a new home near Fareham station, the sealant around baths, showers and frames is worth checking in the first year or two.
Lee-on-the-Solent is about 2 miles west of Gosport, in Hampshire. If you need new build mastic in Lee-on-the-Solent, it’s easy to get a quote: please call 0345 464 0079 or drop us an email. We cover Hampshire from our Crawley base. We cover 683 towns and villages across Hampshire.
We cover every part of the PO13 postcode area for new build mastic and the streets around it. Whether your property is on High Street, Victoria Square and Wheatcroft Road or a nearby road, we can help. We also cover Crofton (1 mile north), Peel Common (1 mile north), Rowner (2 miles north-east), Bridgemary (2 miles north-east) and Gosport (2 miles east). We also work in nearby towns such as Havant (10 miles north-east), Eastleigh (13 miles north-west), Fareham (3 miles north), Horndean (11 miles north-east), Chandler's Ford (15 miles north-west) and Hedge End (9 miles north-west).
Local landmarks in Lee-on-the-Solent
We work in homes and buildings around Crofton School and Baycroft School, among other places. The closest station to Lee-on-the-Solent is Fareham station, about 3.5 miles north of the centre. Other landmarks nearby include Fareham Shopping Centre (3.6 miles north) and Gosport War Memorial Hospital (2.1 miles east). Not far away are West of the River Alver.
How we quote for new build mastic
Call for a quick quote. What matters most is:
- How much old sealant there is and how hard it is to remove
- Whether the work is at height
- Mould in or behind the old joints
- Working hours on commercial sites
The cost depends on how much there is to do, how much old material has to come out and access to the work. You’ll have a clear quote before any work starts.
What we need to know
To help us quote quickly, please include:
- Photos by email, if that’s easy
- Any access issues, like height or stairs
- If someone has resealed it before
- How many joints, rooms or windows are involved
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work before giving you a price.
How the visit works
Good joint work is mostly preparation, and we don’t rush it. Joints are cleaned back and dried before anything new goes in. In total, it generally takes a few hours for most snagging lists, longer for a run of plots. For a job in Lee-on-the-Solent, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- Every bit of the old builder’s sealant is cut out.
- We clean out the dust and grit left from the build.
- Primer goes on where the surface and product need it, then the new sealant.
- We tool every joint neatly and tell you when each area can be used.
Before we arrive
- Clear items away from the joints we are working on
- Keep children and pets away from the work area
- Let us know about parking restrictions
Get a quote
For new build mastic in Lee-on-the-Solent, call 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you will get a clear quote before work begins.
Related advice
When it isn’t the sealant
Some problems need a builder, plumber or other trade rather than us:
- Damaged fittings that need replacing
- Leaking fittings rather than failed sealant
- Settlement cracks that need a surveyor
If in doubt, call 0345 464 0079 or send us an email and we’ll say what we think before booking.
Surfaces we seal
- Windows & doors
- Plot handovers
- Skirting & floors
- Kitchens
- Show homes
- Bathrooms & en suites
How the job changes by surface
Show homes
Bathrooms, kitchens and frames in show homes are sealed or resealed to a neat finish to a tidy standard. We will plan around viewing times.
Skirting and floors
New homes often develop a gap between skirting and floor. A flexible sealant closes it without cracking like caulk.
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Do not seal over failed sealant yourself
- Wait for the cure time before using a resealed shower
- Raise failed sealant with the developer while you’re covered
- Use the extractor fan every time you shower
Keep an eye on the joints over the first couple of years. Hairline gaps can open as timber and plaster dry, and they’re simple to reseal once movement has slowed.
Mould takes hold quickly in sealant that has gaps or lifted edges. Dealing with it before it goes black keeps the job straightforward.
Also near Lee-on-the-Solent
Also in Lee-on-the-Solent
Questions from Lee-on-the-Solent
I let a flat near Fareham station. Can you help?
Yes, we work for landlords and agents. Just call 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear price.
Can you do new build mastic in Lee-on-the-Solent?
Yes, Lee-on-the-Solent is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear quote.
Can you do plot mastic on a new development?
Yes. Second-fix sealing in bathrooms, kitchens, frames and floors is part of what we do. We clean and prime joints properly to keep callbacks down.
Where are you based?
Our base is Crawley. We work across South East England, London and Scotland.
When is the best time to reseal in a new build?
That depends on the joint. A leaking shower or bath seal should be redone straight away, while small cosmetic gaps can wait a while.
Do you hold any approvals?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Do you guarantee your work?
Yes: twelve months. If anything isn’t right with the work within the year, let us know and we’ll sort it.
Can you quote for more than one area?
Yes. Just list everything you need and we will quote it together.
What we’re called out for in Lee-on-the-Solent
A new house holds a lot of water from the build, which takes a year or two to dry out. As it does, timber shrinks and joints open and the sealant has to cope with the movement.
People usually contact us after spotting one of these:
- Beads laid onto grit and dust from the build
- Messy sealant that spoils new finishes
- Gaps opening as the house dries out and settles
- Kitchen sealant that has pulled off the wall
In and around Lee-on-the-Solent, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Before booking anyone
- What happens if the job turns out different
- Is the old sealant removed completely?
- Whether the sealant suits the joint
- How long the guarantee is