Hampshire · England
Old Netley New Build Mastic
Plot mastic for developers and snagging failed sealant in new homes for homeowners, landlords and businesses in Old Netley. Fully insured, ARBOMaster approved and guaranteed for a year.
- Kitchen sealant that has pulled off the wall
- Sealant that never bonded to the surface
- Untidy sealant flagged on a snagging list
How the visit works
A visit follows a simple pattern: we look at the joints together, protect the area around them, carry out the job and tidy away. Most jobs take a few hours for most snagging lists, longer for a run of plots. For a village or hamlet like Old Netley, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We start by going through the snagging items or plot schedule with you.
- 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.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us about any water getting in
- For business premises, tell us about site rules or sign-in
How to get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Related advice
New build mastic for homes and businesses in Old Netley
Building dust is behind a lot of failed new-build sealant. We clean every joint thoroughly and prime where the surface and product need it, so the new bead bonds properly rather than sitting on a layer of grit. If you have cracked caulk along new skirting and smeared, uneven beads picked up at snagging, we can help.
Older homes in small places like Old Netley often have timber floors that move with the seasons, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
All of our work is guaranteed for twelve months, in Old Netley and everywhere else we cover.
- Where
- Old Netley (SO31)
- Region
- Hampshire
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
FAQs for Old Netley
Is Old Netley within the area you cover?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do you cover Old Netley for new build mastic?
Yes, Old Netley is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job.
How much does new build mastic cost in Old Netley?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote.
How long should I leave it?
That depends on the sealant used, so follow the cure time we give you.
Do I need to be at home?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
What do you need from me for a quote?
Tell us what needs doing and where. We’ll ask anything else we need to know.
How long does the job take?
A typical job takes a few hours for most snagging lists, longer for a run of plots. We’ll confirm how long when we quote.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.
Also in Old Netley
What affects the cost of new build mastic
The price is agreed before any work begins. It’s based on:
- Mould in or behind the old joints
- The old material and how stubborn it is
- The product the joint needs
- How many rooms, windows or areas are involved
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
Helping us quote
Photos by email are helpful but not essential. Please mention:
- The type of property
- Pictures of the joints, sent by email
- The rough size of the job
- What the problem is, such as mould, gaps, leaks or cracking
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’ll explain what’s involved.
What we can’t put right
Sealant isn’t the answer to every problem, and we’ll tell you before we start. Sealant won’t put right:
- Structural cracks in walls or ceilings
- Cracked trays, tiles or worktops
- Baths and trays that move too much for sealant to cope with
If you are not sure, just phone 0345 464 0079 or email us and we will give you a straight answer.
Joints and surfaces we work on
- Plot handovers
- Bathrooms & en suites
- Show homes
- Kitchens
- Windows & doors
- Skirting & floors
Keeping the joints in good condition
Good habits help new joints last longer. Our tips:
- Ventilate bathrooms well, especially in the first year
- Photograph failed sealant before it’s redone
- Resist patching a failed seal with a tube from the DIY shop
- Raise failed sealant with the developer while you’re covered
Watch the joints as the house settles. Hairline gaps can open as timber and plaster dry and can be resealed later.
Report failed sealant to the builder while you are in the snagging period. Once it ends, the repair may be down to you so report it promptly.
New homes and floors in Old Netley
Old Netley is close to the coast. New homes near the sea put their outside mastic to work from day one, so any gaps are best picked up early. 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.
If you’ve bought a new home near Bursledon station, the sealant around baths, showers and frames is worth checking in the first year or two.
Old Netley is about 2 miles south-west of Hedge End, in Hampshire. We carry out new build mastic for householders, landlords and businesses in Old Netley and the surrounding area, as part of our work across Hampshire. Our area takes in 683 places across Hampshire, large and small.
All of SO31 is within our area for new build mastic. If you need new build mastic at a property on Darlee Gate, Green Lane and Cranbury Gardens or anywhere close by, our applicators can take on the job. We also cover Lowford (1 mile north-east), Bursledon (1 mile east), Butlocks Heath (1 mile south-west), Hound (1 mile south-west) and Netley (1 mile south-west). We also work in nearby towns such as Winchester (12 miles north), Gosport (10 miles south-east), Havant (15 miles east), Eastleigh (5 miles north), Fareham (6 miles south-east) and Horndean (14 miles east).
Near you in Old Netley
Typical jobs here are in homes near Oasis Academy Mayfield, Westwood Woodland Park and The Linden Tree pub and the streets around them. The closest station to Old Netley is Bursledon station, roughly 1 mile south-east of the centre. Nearby you will also find Coldeast (2.3 miles south-east) and Bursledon Brickworks Industrial Museum (1.6 miles east). The countryside around Old Netley includes Netley Common.
Do you need new build mastic in Old Netley?
On many sites, sealant goes on in the final rush before handover. Dusty, unprimed joints are common, so the bead never bonds properly.
Any of these means the joints need attention:
- Beads laid onto grit and dust from the build
- Second-fix sealing on new plots
- Cracked sealant around new window and door frames
- Joints pulling apart as timber shrinks
In and around Old Netley, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- What product goes in the joint
- Whether VAT is included
- How the surfaces are prepared before sealing
- How long to leave it before use
Leave it or put it right?
A quick bead over the top of the old sealant can look fine at first, but it won’t bond to the old layer. Taking it all out and starting again is the only way to get a lasting seal. Where a wall is exposed, as many are in small places like Old Netley, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
Why book with us
- White, clear, grey or another colour, product permitting
- We leave the area clean and tidy
- Anti-fungal silicone where joints get wet
- Arbo and Everbuild products
Take a look at what affects the cost or what customers say.
What the job involves on each surface
Plot handovers
Send us the schedule and any sealant specification for a quote. Sealant work across the plot is covered to the agreed spec.
Show homes
Tired or marked sealant in a show home can be renewed. We cut it out and reseal neatly.