Hampshire · England
New-build mastic & snagging in Greywell, Hampshire
Specialist new build mastic for Greywell: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Internal frame sealant that has split
- Worktop and upstand sealant coming away
- Cracks appearing as a new home settles
New build mastic in Greywell
Developers send us the plot schedule and we work through it. We seal bathrooms, kitchens, windows, doors and skirting so plots are ready to hand over with a sealant suited to each area. Common call-outs are for leaking shower tray seals in a new home and beads laid onto grit and dust from the build, on show homes, plot handovers and bathrooms & en suites.
Around Greywell, 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.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.

- Where
- Greywell (RG29)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What happens on the day
All our tools and materials come with us in the van, so there’s nothing for you to buy. After a quick look at the joints together, the area is protected and the work begins. It normally takes a few hours in a single home. Somewhere like Greywell needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- 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, 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.
- We tool every joint neatly and tell you when each area can be used.
Before we arrive
- Where the joints are inside, avoid wetting them before we arrive
- Clear the area around the work
- Let us know about parking restrictions
How to get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. When it suits you, call 0345 464 0079 or email us.
Advice
Looking after it afterwards
So the new joints stay in good condition:
- Keep photos and emails about snagging items
- Resist patching a failed seal with a tube from the DIY shop
- Get a leaking seal dealt with straight away
- 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.
If a shower tray or bath seal splits in the first year, look for movement. Have it resealed, and the tray or bath checked, before it gets worse.
Do you need new build mastic in Greywell?
Sealant applied onto damp surfaces does not bond well. On a busy site, joints aren’t always given time to dry before the sealant goes on.
People usually contact us after spotting one of these:
- Shower seals failing in the first year or two
- Frame joints opening as the plaster dries
- Gaps opening as the house dries out and settles
- Skirting joints opening in the first winter
If you’ve bought a new home near Hook station, the sealant around baths, showers and frames is worth checking in the first year or two.
What to look for in a quote
- Is VAT in the price?
- How the colour is chosen
- Which sealant they’ll use, and why
- The length of the guarantee
How we quote for new build mastic
The price is agreed before any work begins. It’s based on:
- Any working-time requirements on site
- Access and height
- Any mould that needs treating
- The number and length of the joints
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we’ll go through it with you.
What to tell us for a quote
When you call or email, it’s useful to know:
- What’s wrong with the joints now
- How we’d reach the joints
- If someone has resealed it before
- Where the job is, and your postcode
Want a quote for new build mastic? Please phone 0345 464 0079 or drop us an email and tell us about the job. We’ll explain what we’d do and give you a clear price before any work starts.
What new build mastic looks like in Greywell
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Around Greywell, as everywhere, new build mastic is only as good as the preparation behind it.
Greywell is about 6 miles east of Basingstoke, in Hampshire. Whether you are in the middle of Greywell or further out, we cover new build mastic for every kind of property. Our area takes in 683 places across Hampshire, large and small. Reading is on our list too, about 13 miles from Greywell.
We work across the RG29 postcode area for new build mastic and the streets around it. Local streets include The Street, Hook Road and Dorchester Way, and we cover them all. Other places close to Greywell include Warnborough Green (1 mile north-east), North Warnborough (1 mile east), Up Nately (1 mile north-west), Nately Scures (1 mile north-west) and Hook Common (1 mile north). Within a short drive, we also cover Basingstoke (6 miles west), Farnborough (9 miles east), Fleet (6 miles east), Aldershot (9 miles east), Alton (8 miles south) and Yateley (8 miles north-east).
Landmarks near Greywell
Around Greywell, our work takes us to homes and buildings near Fox And Goose Public House and the streets around them. Greywell’s nearest station is Hook station, roughly 1.4 miles north. Other landmarks nearby include West Green House Agricultural Museum (3.4 miles north-east) and Odiham Castle (within half a mile north-east). Green spaces nearby include Tundry Hill and The Mill Field.
What the job involves on each surface
Show homes
In a show home, the sealant is on display. Every bead is neat and coloured to suit the room.
Skirting and floors
New homes often develop a gap between skirting and floor. A flexible sealant closes it without cracking like caulk.
Leave it or put it right?
DIY kits do not solve the main problems with new-build sealant: grit, unprimed surfaces and old layers underneath. Proper removal and preparation are what make it last. Older cottages and farmhouses around Greywell can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
What it costs depends on the amount of work, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts.
Why Greywell customers choose us
- Anti-fungal sanitary silicone in wet areas
- Any old sealant cut out fully, not covered over
- 12-month guarantee on every job
- We are fully insured
Also near Greywell
Also in Greywell
Greywell: your questions answered
I let a flat near Hook station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can call 0345 464 0079 or email us with the details for a clear quote.
Will you come out to Greywell?
Yes. Greywell is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is it normal for sealant to crack in a new home?
Lots of new homes see sealant crack early. Poor preparation at handover adds to it.
Can you quote for more than one area?
Yes, we can. Several rooms, windows or areas can go on one quote.
Do you take on second-fix sealing for builders?
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.
How long will you be here?
Most jobs take a few hours in a single home, including preparation and clearing up. We will confirm how long when we quote.
Is there a guarantee?
Yes. Each job is guaranteed for twelve months.
What sealant do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We will tell you what we’re using and why.
Should I try it myself first?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
