Hampshire · England
New-build mastic & snagging in Cole Henley, Hampshire
New build mastic across Cole Henley and nearby, with every bit of old sealant taken out first.
- Cracked caulk along new skirting
- Leaking shower tray seals in a new home
- Cracked sealant around new window and door frames
About our new build mastic in Cole Henley
In a new home, every joint should have a clean, even bead. Smeared, patchy or cracked sealant is worth sorting early, before water gets into the floor or walls. We work on plot handovers, show homes and bathrooms & en suites, and common reasons people get in touch are skirting joints opening in the first winter and sealant that never bonded to the surface.
Somewhere as small as Cole Henley, new homes tend to be conversions, self-builds or a few houses rather than an estate. Each still needs its sealant and floor joints finished properly.
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
- Cole Henley (RG28)
- Wider area
- Hampshire
- Cover
- One year on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What we do, step by step
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes a few hours in a single home. In a small place like Cole Henley, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each joint is checked for movement before any work starts.
- We remove the failed sealant and clean the joints.
- Joints are dried and primed where the product calls for it.
- Baths are filled with water, then the new sealant is applied.
- The finished joints are checked and the cure times given.
How to prepare
- Clear the area around the work
- Mention any sign-in or site rules at work premises
- Plan for the work area to be out of bounds to pets and children
Get a quote
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or email us.
Advice
Towns and villages near Cole Henley
Also in Cole Henley
What affects the cost of new build mastic
We quote each job individually. These are the things that affect it:
- Mould in or behind the old joints
- The size of the job
- The product the joint needs
- How many rooms, windows or areas are involved
Doing several joints on one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Helping us quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Any access issues, like height or stairs
- Roughly how big the job is
- Whether it has been sealed before
- Where the property is
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. Whenever you are ready, call 0345 464 0079 or email us.
FAQs for Cole Henley
Will you come out to Cole Henley?
Yes, Cole Henley is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Is Cole Henley in your area for new build mastic?
Yes. We work across London and the South East, and Cole Henley is part of that. Just phone 0345 464 0079 or email us with a few details of the job, and we will give you a clear price.
My new home is still under warranty. Should I contact you?
Your builder, if you’re still in their snagging or warranty period. If that doesn’t work out, we’re happy to quote and our work is guaranteed for a year.
Do you work for developers?
Yes. We work through plots to your schedule. Get in touch with the number of plots and the scope and we’ll quote.
Is the work guaranteed?
Yes. There’s a 12-month guarantee on every job, large or small.
Will you just run a new bead over the existing one?
No. Over-sealing traps mould and water and soon fails. All the old sealant comes out before any work starts.
Do you work for letting agents?
Yes, regularly. Several properties can be quoted together, and between tenancies is a good time for the work.
What information do you need?
Tell us what needs doing and where, plus pictures if you have them. If we need more, we’ll ask.
DIY versus a professional finish
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
Do you need new build mastic in Cole Henley?
Sealant applied onto damp surfaces does not bond well. On a busy site, joints are not always given time to dry first.
Keep an eye out for these signs:
- Plot mastic for developers ahead of handover
- Leaking shower tray seals in a new home
- Internal frame sealant that has split
- Untidy sealant flagged on a snagging list
For new homes near Whitchurch (Hampshire) station, it’s worth checking the sealant early, while snags are still fresh.
Before booking anyone
- How long to leave it before use
- What preparation is included
- Whether VAT is included
- How much experience the applicator has
Keeping the joints in good condition
After the cure time, these simple habits help:
- Wipe joints with warm soapy water
- Watch for new gaps as the house dries out
- Don’t seal over failed sealant yourself
- Act quickly if a seal starts to leak
Wipe the sealant with warm soapy water. Avoid abrasive pads and strong solvents as they wear the bead.
Lifting sealant traps moisture and mould behind it. Dealing with it before it goes black keeps the job straightforward.
Why act early in Cole Henley
DIY kits do not solve the main problems with new-build sealant: dust, no primer and old sealant left in the joint. Proper removal and preparation are what make it last. Around Cole Henley, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What you get with us
- One-year guarantee on every job
- A choice of colours where the product allows
- Colour agreed with you before we start
- Domestic, commercial and hotel work
Take a look at what affects the cost and customer reviews.
Joints and finishes in Cole Henley homes
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.
Around Cole Henley, as everywhere, new build mastic is only as good as the preparation behind it.
Cole Henley is about 7 miles north-east of Andover, in Hampshire. We carry out new build mastic for homes and businesses in Cole Henley and nearby. We cover 683 towns and villages across Hampshire. There’s also a page for Reading, about 20 miles away.
Every address in RG28 is covered for new build mastic. Neighbouring places we cover for new build mastic include Wells-in-the-Field (2 miles south), Freefolk (2 miles south-east), Whitchurch (2 miles south), Wadwick (3 miles north-west) and St Mary Bourne (3 miles west). Within a short drive, we also cover Basingstoke (10 miles east), Winchester (14 miles south), Andover (7 miles south-west), Tadley (10 miles north-east), Hyde (13 miles south) and Popley (11 miles east).
Around Cole Henley
The nearest railway station is Whitchurch (Hampshire) station, about 1.4 miles south of the centre. Not far away are Ladle Hill.
Surface by surface
Bathrooms and en suites
New-build bathrooms and en suites are where sealant fails most often. We cut out the failed bead, clean and prime, and reseal with anti-fungal sanitary silicone.
Skirting and floors
Where the floor meets a bath panel or kitchen plinth, the joint keeps mop water out. We seal them with a sealant suited to wet areas.
