Hampshire · England
Park Gate New Build Mastic
Specialist new build mastic for Park Gate: careful preparation, the right product and tidy work. Call for a quick quote.
- Cracks appearing as a new home settles
- Skirting joints opening in the first winter
- Untidy sealant flagged on a snagging list
DIY versus a professional finish
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
How we handle new build mastic in Park Gate
In a new home, every joint should have a clean, even bead. When the finish is smeared, patchy or already cracking, it’s worth putting right early, before water reaches anything behind it. We are often asked to deal with gaps between new skirting and floors and second-fix sealing on new plots, on windows & doors, plot handovers and skirting & floors.
Around Park Gate, older homes often have timber floors that move through the year, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.

- Location
- Park Gate (SO31)
- Wider area
- Hampshire
- Cover
- One year on every job
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What sealant work can’t fix
To be straight with you, there are a few things sealant will not fix:
- Cracked trays, tiles or worktops
- Leaks from pipes, valves or wastes, which need a plumber
- Deciding who is responsible under a builder’s warranty
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think before you book.
Surfaces we seal
- Kitchens
- Show homes
- Skirting & floors
- Plot handovers
- Bathrooms & en suites
- Windows & doors
What we do, step by step
We bring everything the job needs with us, so there’s nothing for you to buy. Once we have agreed what’s being done, the area is protected and the work begins. Most jobs take a few hours in a single home. Somewhere like Park Gate needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First we work through your snagging list or plot schedule with you.
- We cut out every bit of the failed or messy sealant.
- We clean off dust from the build and prime the surfaces where the product needs it.
- We apply a sealant that suits each joint and tool it to a neat finish.
- Finally, each room is checked and you’re given the cure time.
How to prepare
- Mention any parking rules near the property
- Mention if the joints have been sealed before
- Mention any sign-in or site rules at work premises
Get a quote
For new build mastic in Park Gate, call 0345 464 0079 or email us. Tell us what the problem is and where, and we will agree the price before any work begins.
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Do you need new build mastic in Park Gate?
Once people move in, baths and trays take weight and bed down. If a bath wasn’t filled when it was sealed, the bead is stretched the first time it’s used and the sealant may split.
Any of these means the joints need attention:
- Shower seals failing in the first year or two
- Kitchen sealant that has pulled off the wall
- Cracks appearing as a new home settles
- Untidy sealant flagged on a snagging list
In and around Park Gate, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- What happens if they find a problem under the old sealant
- The length of the guarantee
- Is the old sealant removed completely?
- How the joint is cleaned and prepared
Your questions about new build mastic in Park Gate
Is Park Gate in your area for new build mastic?
Yes, Park Gate 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.
Is Park Gate within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you use white or clear sealant?
We use white, clear or a colour to suit the finishes. Tell us what you’d like when you get a quote.
Do you guarantee your work?
Yes, always. Each job is guaranteed for twelve months.
Can new sealant go on top of the old bead?
No. Over-sealing traps mould and water and soon fails. We remove every bit of the old bead before resealing.
Are you insured?
Yes. We’re fully insured.
Do I need to be at home?
That depends on where the joints are. For work indoors, someone needs to let us in.
Where are you based?
We’re based in Crawley, and we work across South East England, London and Scotland.
Work for landlords, hotels and businesses
For anyone letting property in or around Park Gate, several properties can go on one quote. Send us the addresses and the work at each, and photos by email help.
We work for landlords and letting agents as well as homeowners. Resealing between tenancies keeps a property looking cared for before the next move-in.
How to look after the new joints
A little care helps the new joints last. We recommend:
- Watch for new gaps as the house dries out
- Report sealant problems to your builder during the snagging period
- Follow the cure time we give you
- Wipe joints with warm soapy water
Wipe the sealant with warm soapy water. Avoid abrasive pads and strong solvents as they wear the bead.
Mould takes hold quickly in sealant that has gaps or lifted edges. Resealing before mould gets in keeps the job straightforward.
Different surfaces, different methods
Windows and doors
On new builds, external frame sealant can be patchy. We reseal it with a weatherproof, flexible sealant.
Bathrooms and en suites
En suite seals are easy to miss on a snagging list until they leak. Resealing properly keeps water where it belongs.
New homes and floors in Park Gate
Park Gate is within about 3 miles of the coast. Plot mastic on new homes near the coast takes more weather than it would inland, so any gaps are best picked up early. London and the South East are among the drier parts 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 Swanwick station, the sealant around baths, showers and frames is worth checking in the first year or two.
Park Gate is about 3 miles south-east of Hedge End, in Hampshire. We carry out new build mastic for homes and businesses in Park Gate and nearby. Across Hampshire, we cover 683 places, Park Gate among them. Southampton is on our list too, about 6 miles from Park Gate.
Work in SO31 works the same way as everywhere else we cover. If you need new build mastic at a property on Station Road, Botley Road and Middle Road or a nearby road, our applicators can take on the job. Nearby, we also carry out new build mastic in Sarisbury (1 mile west), Locks Heath (1 mile south), Segensworth (1 mile east), Whiteley (1 mile north-east) and Swanwick (1 mile north-west). We also work in nearby towns such as Winchester (13 miles north), Gosport (7 miles south-east), Havant (12 miles east), Eastleigh (7 miles north-west), Fareham (3 miles south-east) and Horndean (11 miles east).
What’s near Park Gate
Locally, jobs take us to homes and businesses close to Brookfield Community School and Language College, among other places. Park Gate has its own railway station: Swanwick station. Other landmarks nearby include Bursledon Brickworks Industrial Museum (1.4 miles north-west) and St Andrew's Castle (2.6 miles south-west). Not far away are Swanwick Lakes.
