Kent · England
New Build Mastic in Finberry
Problem with your new-build sealant joints in Finberry? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Leaking shower tray seals in a new home
- Smeared, uneven beads picked up at snagging
- Joints pulling apart as timber shrinks
Can I do it myself?
If you’ve already had a go yourself, that is fine. We cut it out and start again.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
How we handle new build mastic in Finberry
For builders and developers, we work through plots to the schedule you give us. Bathrooms, en suites, kitchens, frames and skirting are sealed ready for handover. Typical jobs include internal frame sealant that has split and sealant that never bonded to the surface, on plot handovers, kitchens and windows & doors.
For a small place like Finberry, the journey and access are planned in advance, and the work itself is the same as on any site.
There’s a 12-month guarantee on every job, large or small.
- Where
- Finberry (TN25)
- Region
- Kent
- Guarantee
- 12 months on all our work
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
Landlords and letting agents in Finberry can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
What we are called out for in Finberry
The first winter with the heating on dries a new home quickly. Skirting, frames and worktops pull away slightly.
It’s worth asking for a quote if you see:
- Joints pulling apart as timber shrinks
- Untidy sealant flagged on a snagging list
- Leaking shower tray seals in a new home
- Skirting joints opening in the first winter
If you’ve bought a new home near Ashford International station, the sealant around baths, showers and frames is worth checking in the first year or two.
What your quote should include
- Whether all the old sealant comes out first
- What happens if they find a problem under the old sealant
- How the joint is cleaned and prepared
- Which colour the sealant will be
Joints and finishes in Finberry 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 Finberry, as everywhere, new build mastic is only as good as the preparation behind it.
Finberry is about 2 miles south-east of Ashford, in Kent. Our applicators cover new build mastic for householders, landlords and businesses in Finberry and the surrounding area, as part of our work across Kent. Across Kent, we cover 922 places, and Finberry is one of them. There’s also a page for Chelmsford, about 46 miles away.
Here we cover the TN25 postcode area for new build mastic. New build mastic is available to properties on Swift Avenue, Harrier Drive and Nuthatch Drive. Close by, we work in Cheeseman's Green (1 mile south), South Willesborough (1 mile north), Park Farm (1 mile west), Newtown (1 mile north-west) and Kingsnorth (1 mile west). Larger places within reach include Canterbury (14 miles north-east), Folkestone (12 miles east), Faversham (14 miles north), Hythe (9 miles east), Davington (14 miles north) and Preston (13 miles north).
Landmarks near Finberry
In Finberry, that means homes and buildings near Ashford Green Corridors and John Wallis Academy, among other places. The nearest railway station is Ashford International station, roughly 2 miles north-west of the centre. Well-known places in the area include William Harvey Hospital (1.9 miles north-east) and Ashford Designer Outlet (1.5 miles north-west). Green spaces nearby include Hatch Park.
Places near Finberry
Other services in Finberry
How we quote for new build mastic
We quote each job individually. These are the things that affect it:
- The amount of work
- Whether there’s mould to deal with
- How many rooms, windows or areas are involved
- Which sealant suits the joint
Combining jobs into one visit generally makes better use of the time than several visits, so tell us about everything that needs sealing. We will send you a clear quote for the lot.
What we need to know
Photos help, but a description is a good start. Please mention:
- The type of property
- Where the property is
- Whether it has been sealed before
- Photos by email, if that’s easy
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. When it suits you, call 0345 464 0079 or email us.
How it works
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take anything from a few hours to several days, depending on the number of plots. In a small place like Finberry, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
- We clean out the dust and grit left from the build.
- 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.
Getting ready for the visit
- Keep children and pets away from the work area
- Let us know about stairs, lifts or work at height
- Mention if the joints have been sealed before
Ask for a quote
Getting a quote is simple: let us know the job and the location and its rough size. A few pictures by email make the job easier to understand.
Advice
Surface by surface
Plot handovers
Developers can send the plot schedule and specification for a quote. Sealant work across the plot is covered.
Kitchens
Worktop, upstand and sink joints in new kitchens often get a hurried bead. We take it out and reseal neatly, colour-matched where it shows.
Questions from Finberry
Do you cover smaller places like Finberry?
Yes. Finberry 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 Finberry in your area for new build mastic?
Yes. We work across London and the South East, and Finberry is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we will send you a clear quote.
Can I do it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
I rent my home. Can I book you?
We’re happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
How long will you be here?
As a guide, most jobs take anything from a few hours to several days, depending on the number of plots. Bigger jobs take longer.
Do you remove the old sealant?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Why does sealant fail so quickly in new builds?
Cracking in the first couple of years is common. Poor preparation at handover adds to it.
Can you reseal over the builder’s sealant?
No. Sealing over old sealant looks fine for a few weeks, then lifts. We remove every bit of the old bead before resealing.
Why act early in Finberry
Sealant done properly at handover means fewer callbacks. Snagging visits for failed sealant cost time on every plot. Around Finberry, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or send us an email and we’ll talk you through it.
Why choose Mr Mastic in Finberry
- You choose the colour before work begins
- Quality sealants from Arbo and Everbuild
- Sanitary silicone with an anti-fungal additive in wet areas
- Every job guaranteed for a year
Take a look at our cost guide and customer reviews.