Hampshire · England
New Build Mastic in Andwell
Specialist new build mastic for Andwell: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Shower seals failing in the first year or two
- Gaps between new skirting and floors
- Sealant that never bonded to the surface
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. We suggest:
- Don’t wait for the house to settle if water is getting through
- Resist patching a failed seal with a tube from the DIY shop
- Use the extractor fan every time you shower
- Put sealant faults on your snagging list early
Keep the bathroom ventilated, especially in the first year. Use the extractor fan or open a window after showers so moisture doesn’t sit on the sealant.
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.
New build mastic for homes and businesses in Andwell
Snagging sealant properly means taking the failed bead out completely. New silicone won’t bond to old silicone, so the joint is cut out, cleaned, dried and resealed. We work on windows & doors, skirting & floors and bathrooms & en suites, and common reasons people get in touch are second-fix sealing on new plots and messy sealant that spoils new finishes.
Older homes in small places like Andwell often have timber floors that move with the seasons, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
A one-year guarantee comes as standard, so you are covered after we’ve gone.
- Place
- Andwell (RG25, RG27, RG24)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
For landlords and businesses
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together.
Nearby places to Andwell
Other services in Andwell
Different surfaces, different methods
Plot handovers
Send us the schedule and any sealant specification. Sealant work across the plot is covered as agreed.
Skirting and floors
As timber and screed dry, skirting and floors shift. Caulk cracks; a flexible sealant moves with it painted or coloured to suit.
Why it’s worth doing now in Andwell
A quick bead over the top of the old sealant can look fine at first, but it cannot bond to what’s underneath. Taking it all out and starting again is the only way to get a lasting seal. Older cottages and farmhouses around Andwell can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Why us?
- Old sealant always removed completely
- A sealant colour to suit the surroundings
- A 12-month guarantee on all work
- Fully insured
See our cost guide and customer reviews.
DIY versus a professional finish
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
New build mastic in Andwell: local notes
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.
In and around Andwell, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Andwell is about 3 miles south-west of Hook, in Hampshire. Homes, rented property, offices and hotels in Andwell can book us for new build mastic. Every job comes with our one-year guarantee. We cover 683 towns and villages across Hampshire, from the larger towns to small villages. We also work in Reading, around 13 miles away.
Our applicators cover all of RG25, RG27 and RG24 for new build mastic. That includes homes and businesses on Greywell Road and Canal Reach and the roads around them. If you are just outside Andwell, we cover Mapledurwell (1 mile south), Water End (1 mile north-east), Old Basing (1 mile west), Lychpit (2 miles west) and Wildmoor (2 miles north). Within a short drive, we also cover Basingstoke (4 miles west), Farnborough (11 miles east), Fleet (8 miles east), Aldershot (11 miles east), Alton (8 miles south) and Yateley (9 miles north-east).
Landmarks near Andwell
The closest station to Andwell is Hook station, about 2.4 miles east of the centre. Well-known places in the area include Festival Place (3.1 miles west) and Basingstoke and North Hampshire Hospital (4.2 miles west). The countryside around Andwell includes Dogmersfield Lake and The Mill Field.
FAQs for Andwell
I let a flat near Hook station. Can you help?
Yes, rental work is part of what we do. Just call 0345 464 0079 or drop us an email and tell us about the property, and we’ll send you a clear quote.
Do you cover Andwell for new build mastic?
Yes. We work across London and the South East, and Andwell is part of that. You can call 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll send you a clear quote.
How long should I leave it?
It depends on the product and the temperature. Before we leave, we’ll tell you the cure time.
What do you need from me for a quote?
Only a few details: the address or postcode, what’s wrong and any access issues. After that, simply phone 0345 464 0079 or email us.
Can I add another job to the visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
Is it normal for sealant to crack in a new home?
New homes dry out and move in their first couple of years, and sealant is often applied quickly onto dusty surfaces. Either can make it fail early.
Should I try DIY first?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
What colour sealant will you use?
The colour is chosen to suit the tiles, worktop or frame. Let us know your preference when you ask for a quote.
Do you need new build mastic in Andwell?
When the heating goes on in the first winter, the house dries fast. Skirting, frames and worktops pull away slightly.
The problems people normally mention when they call include:
- Leaking shower tray seals in a new home
- Beads laid onto grit and dust from the build
- Sealant work across a run of new homes
- Cracked caulk along new skirting
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.
Comparing quotes
- Which sealant they’ll use, and why
- When the joint can take water or movement
- Whether VAT is included
- The length of the guarantee
How it works
We bring everything the job needs with us, so you do not need to buy or prepare anything. After a quick look at the joints together, we protect the area and start. It normally takes anything from a few hours to several days, depending on the number of plots. In a small place like Andwell, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by agreeing which joints are on the list, from the snagging sheet or plot schedule.
- The old bead comes out in full, with no layer left behind.
- Each joint is cleaned of dust and grit, then primed if required.
- We apply a sealant that suits each joint and tool it to a neat finish.
- We check every joint and tell you how long each needs to cure.
How to prepare
- Let us know about parking restrictions
- Tell us about access, such as stairs, a lift or high-level joints
- Try not to wet indoor joints just before the visit
How to get a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.