Hampshire · England
Sprat's Down New Build Mastic
New build mastic across Sprat's Down and nearby, with old sealant always removed completely and a one-year guarantee.
- Gaps between new skirting and floors
- Cracked sealant around new window and door frames
- Plot mastic for developers ahead of handover
How the job changes by surface
Kitchens
Beside the sink, the joint takes water every day. We use a sealant suited to kitchens, food-safe where it’s needed.
Plot handovers
Developers can send the plot schedule and specification for a quote. Sealant work across the plot is covered as agreed.
New build mastic in Sprat's Down, done properly
Some owners wait for the first year’s movement before having joints redone. That makes sense for small gaps that are just cosmetic, but a seal that is letting water through needs doing now. If you are dealing with skirting joints opening in the first winter and beads laid onto grit and dust from the build, we can help, on bathrooms & en suites, skirting & floors and show homes alike.
Work in a small place like Sprat's Down just needs the journey and access planning, and the work itself is the same as on any site.
You are covered for a year from the day we finish. If anything isn’t right with it, ring 0345 464 0079 or email us.
- Place
- Sprat's Down (SO45)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What sealant work can’t fix
To be straight with you, some problems need a different trade:
- Movement caused by a poorly fitted tray or bath
- Leaks from pipes, valves or wastes, which need a plumber
- Structural cracks in walls or ceilings
Not sure which it is? You can call 0345 464 0079 or send us an email and we will tell you honestly.
Where we work in Sprat's Down
- Windows & doors
- Kitchens
- Bathrooms & en suites
- Skirting & floors
- Show homes
- Plot handovers
What else we do in Sprat's Down
How we quote for new build mastic
You will get a clear quote before work begins. It takes into account:
- The old material and how stubborn it is
- The product the joint needs
- How many areas need sealing
- How easy the joints are to reach
What you pay reflects the work, not a rough estimate. That is why we ask a few questions first and give you a clear price before any work starts.
Helping us quote
To help us quote quickly, let us know:
- The rough size of the job
- What’s wrong with the joints now
- Where the job is, and your postcode
- Access, such as stairs, a lift or height
If you’re in Sprat's Down and need new build mastic, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before work begins.
Your questions about new build mastic in Sprat's Down
Can you do new build mastic in Sprat's Down?
Yes, Sprat's Down is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or send us an email and let us know what needs doing, and we will give you a clear quote.
I let a flat near Hamble station. Can you help?
Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear quote.
What does new build mastic cost?
Every job is different, so each one gets its own quote. To get one, phone 0345 464 0079 or drop us an email with a short description of the job.
Is it messy?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
How long will you be here?
It depends on the size of the job, but as a guide it takes anything from a few hours to several days, depending on the number of plots. We’ll tell you when we quote.
Do you work for hotels and businesses?
Yes. Larger jobs can be planned room by room or area by area.
What sealant do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
My new home is still under warranty. Should I contact you?
Your builder, if you are still in their snagging or warranty period. After that, or if their repair keeps failing, we can do it with our 12-month guarantee.
Why it’s worth doing now in Sprat's Down
If you are still in the builder’s snagging or warranty period, ask them to put it right first. If it’s slow, or the same joint keeps failing, a proper reseal from a specialist is the next step. In a small place like Sprat's Down, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Why us?
- Homes, businesses and hotels
- A 12-month guarantee on all work
- Neat joints and a tidy finish
- White, clear, grey or coloured to suit, where the product allows
Take a look at what affects the cost or customer reviews.
Joints and finishes in Sprat's Down homes
Sprat's Down 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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Around Sprat's Down, as everywhere, new build mastic is only as good as the preparation behind it. For new homes near Hamble station, it’s worth checking the sealant early, while snags are still fresh.
Sprat's Down is about 4 miles north of Cowes, in Hampshire. From the centre of Sprat's Down to the outskirts, we cover new build mastic for every kind of property, from flats and houses to offices and hotels. Across Hampshire, we cover 683 places, Sprat's Down among them. We also work in Southampton, around 8 miles away.
Our applicators cover all of the SO45 postcode area for new build mastic. Other places close to Sprat's Down include Calshot (1 mile east), Stonehills (1 mile north), Stanswood (1 mile south), Hillhead (1 mile east) and Ashlett (1 mile north). Larger places within reach include Gosport (8 miles east), Eastleigh (11 miles north), Fareham (7 miles north-east), Totton (10 miles north-west), Chandler's Ford (12 miles north) and Hedge End (7 miles north).
Landmarks near Sprat's Down
Typical jobs here are in homes near Falcon Hotel and the streets around them. For rail, the closest station is Hamble station, roughly 4 miles north of the centre. Well-known places in the area include Calshot Castle (1.6 miles east) and Sir Max Aitken Museum (3.9 miles south-east). Not far away are Mercury Marshes and Mill Hill.
What we do, step by step
Good joint work is mostly preparation, and we do not rush it. Joints are cleaned back and dried before anything new goes in. In total, it usually takes a few hours for most snagging lists, longer for a run of plots. Somewhere like Sprat's Down needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- The failed sealant is removed completely, with no layer left behind.
- Joints are vacuumed and cleaned of building dust.
- We prime where needed and apply a sealant suited to each joint.
- Each bead is tooled and the cure times explained.
Preparing for the visit
- For indoor joints, keep the area dry beforehand if you can
- Let us know if you’ve seen damp or leaks
- Let us know about parking restrictions
Getting a quote
Every job is quoted individually, so the first step is telling us about yours. Simply call 0345 464 0079 or send us an email and describe the job, and photos are welcome.
Read more
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. Our tips:
- Keep water off fresh sealant until it has cured
- Record problems with dated photos
- Look at the sealant regularly in the first couple of years
- Raise failed sealant with the developer while you are covered
Keep pictures of the joints and any snagging correspondence with your builder. It’s useful if you need to raise other issues later.
Lifting sealant traps moisture and mould behind it. Resealing before mould gets in keeps the job straightforward.
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.