Hampshire · England
New Build Mastic in Netley
New build mastic in Netley from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Gaps between new skirting and floors
- Kitchen sealant that has pulled off the wall
- Sealant applied over dusty or wet surfaces
Work for landlords, hotels and businesses
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
New build mastic in Netley
New homes move as they dry out. Timber dries and shrinks, and baths and trays settle, and sealant applied in a hurry at handover can split. If you have skirting joints opening in the first winter and leaking shower tray seals in a new home, we can put it right, on show homes, skirting & floors and kitchens alike.
For a new home in or near Netley, it’s worth checking the sealant early. Common snags include open skirting joints, lifting shower seals and gaps around frames.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Place
- Netley (SO31)
- Region
- Hampshire
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
New build mastic around Netley
Netley is within about 1 mile of the coast. New homes near the sea put their outside mastic to work from day one, so any gaps are best picked up early. 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 Netley station, the sealant around baths, showers and frames is worth checking in the first year or two.
Netley is about 3 miles north-east of Hythe, in Hampshire. Netley gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Netley is one of 683 towns and villages in Hampshire where we work.
Our applicators cover all of the SO31 postcode area for new build mastic and the streets around it. Whether your property is on Station Road, The Crescent and Hunt Avenue or anywhere close by, we can help. We also cover the places around Netley: Butlocks Heath (1 mile north-east), Hound (1 mile south-east), Weston (1 mile north-west), Old Netley (1 mile north-east) and Lowford (1 mile north-east). Larger places within reach include Winchester (13 miles north), Gosport (10 miles south-east), Eastleigh (6 miles north), Fareham (7 miles east), Horndean (15 miles east) and Totton (8 miles west).
Local landmarks in Netley
In Netley, that means homes and buildings near Grove Park Business and Enterprise College, Westwood Woodland Park and The Hamble School. There’s a railway station in Netley itself: Netley station. Well-known places in the area include Bursledon Brickworks Industrial Museum (2.5 miles east) and Coldeast (2.8 miles east). Not far away are Mercury Marshes.
Nearby places to Netley
Other services in Netley
What the job involves on each surface
Windows and doors
Draughts around new frames are often a sealant gap. We check and reseal the frame edges.
Skirting and floors
New homes often develop a gap between skirting and floor. We seal it with a flexible sealant that copes with the movement.
Quotes for new build mastic in Netley
There’s no set price list, because no two jobs are the same. What we look at:
- The size of the job
- Any working-time requirements on site
- Whether old sealant or filler has to be cut out
- Which sealant suits the joint
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or send us an email.
What to tell us for a quote
You do not need to know the technical terms. Just tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- Access, such as stairs, a lift or height
- Where the property is
- The rough size of the job
Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we’ll explain what’s involved.
Questions from Netley
Will you come out to Netley?
Yes, Netley is covered. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Can you do new build mastic in Netley?
Yes. Our work covers London and the South East, and Netley is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job.
Where are you based?
Mr Mastic is based in Crawley. We cover Netley and the rest of Hampshire, along with the rest of our area.
Do you do commercial work?
Yes. We can plan bigger jobs in stages to suit the site.
Are you ARBOMaster approved?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Should I go to my builder first?
If you are still within the builder’s snagging or warranty period, report it to them first. If it isn’t sorted, or keeps failing, get in touch with us.
Can you match the sealant colour to my new kitchen or bathroom?
The colour is chosen to suit the tiles, worktop or frame. Let us know your preference when you ask for a quote.
Can I add another job to the visit?
Of course. Doing several areas at once is generally more efficient.
Aftercare tips
After the cure time, these simple habits help:
- Keep water off fresh sealant until it has cured
- Don’t seal over failed sealant yourself
- Raise failed sealant with the developer while you are covered
- Look at the sealant regularly in the first couple of years
Watch the joints as the house settles. Hairline gaps can open as timber and plaster dry, and they’re simple to reseal once movement has slowed.
If a shower tray or bath seal splits in the first year, look for movement. Getting it resealed properly, and any movement checked, stops it recurring.
What happens on the day
On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The work itself takes a few hours for most snagging lists, longer for a run of plots. In a smaller place like Netley, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- We start by going through the snagging items or plot schedule with you.
- Every bit of the old builder’s sealant is cut out, with no layer left behind.
- Joints are vacuumed and cleaned of building dust.
- Primer goes on where the surface and product need it, then the new sealant.
- Each bead is tooled and the cure times explained.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- Let us know if you’ve seen damp or leaks
- Let us know about earlier repairs to the joints
Get a quote
We don’t publish a price list, because every job is different. Instead, we give you a clear quote for your job. To arrange one, call 0345 464 0079 or drop us an email.
Related advice
Do you need new build mastic in Netley?
If plaster or screed was still damp when it was sealed, the bond suffers. On a busy site, joints aren’t always given time to dry before the sealant goes on.
Keep an eye out for these signs:
- Cracks appearing as a new home settles
- Sealant work across a run of new homes
- Beads laid onto grit and dust from the build
- Shower seals failing in the first year or two
In and around Netley, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Before booking anyone
- How the colour is chosen
- What insurance they hold
- What happens if they find a problem under the old sealant
- How much experience the applicator has
Leave it or put it right?
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. Around Netley, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
A failed joint rarely gets cheaper to fix by waiting. If you are not sure whether it needs doing, call 0345 464 0079 or email us and we’ll give you an honest view and a quote.
Why book with us
- Anti-fungal sanitary silicone in wet areas
- Full insurance on every job
- Old sealant always removed completely
- 20+ years of sealant experience
Read how sealant jobs are priced and our reviews.