Kent · England
Finberry Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homeowners, landlords and businesses in Finberry. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Gaps between timber frames and stone or brick
- Modern sealant on a period surround
- Mastic round period door frames that has failed
What we are called out for in Finberry
Over the years, sand mastic weathers. It hardens, cracks and starts to come away from the frame or the masonry.
Signs it’s time to call us include:
- Gaps between timber frames and stone or brick
- Gaps round a timber door in stone or brick
- Tired mastic found when preparing windows for paint
- Old sand mastic that has cracked, crumbled or fallen out
For an older house near a landmark such as Church of St Mary, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Questions to ask before you book
- Whether they seal over old material or remove it
- How much experience the applicator has
- How long the guarantee is
- How the surfaces are prepared before sealing
About our sand mastic in Finberry
Sand mastic suits most period window surrounds. On modern frames we’d normally use a flexible sealant and we’ll explain which is best for yours. We are often asked to deal with open joints round the window box and draughty sash windows at the surround, across brick reveals, stone surrounds and timber door frames.
In a village or hamlet like Finberry, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Place
- Finberry (TN25)
- Wider area
- Kent
- Guarantee
- One year on every job
- Quotes
- A clear price before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What we can’t put right
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Cracked or broken glass
- Whether work needs listed building consent
- Damaged stone surrounds
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly before you book.
What we seal
- Timber door frames
- Tenement windows
- Stone surrounds
- Sash and case windows
- Period & listed homes
- Brick reveals
Questions from Finberry
Will you come out to Finberry?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you cover Finberry for sand mastic?
Yes, Finberry is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or send us an email and tell us what needs doing, and we’ll give you a clear quote.
Is it possible to take out silicone and use sand mastic instead?
Often, yes. With the silicone removed and the joint cleaned, sand mastic is applied by hand.
What guarantee comes with the work?
Our 12-month guarantee applies to all our work.
How long does sand mastic take?
Most jobs take anything from a few hours to a full day, depending on how many windows, including the preparation. Your quote will say how long we expect yours to take.
Can tenants book the work?
We’re happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
Do you offer different sealant colours?
Most of the time, yes. We’ll explain which colours are available.
Where do you work from?
Our base is Crawley. Our area covers South East England, London and Scotland.
The process
The work is kept neat and contained to the area we are working on. The job generally takes a few hours per window, depending on the condition of the joints, and we explain the cure time before we leave. In a small place like Finberry, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, we look at the surrounds with you and agree what needs doing.
- Old, loose mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- We dress the surface so it sits neatly against the masonry.
Before we arrive
- Mention any sign-in or site rules at work premises
- Let us know about stairs, lifts or work at height
- Plan for the work area to be out of bounds to pets and children
Getting a quote
Asking for a quote is easy: tell us what needs doing and where and its rough size. Photos by email help us understand the job, and we’ll take it from there.
Advice
What affects the quote in Finberry
Some jobs are bigger than they look, and some smaller. What affects the quote:
- How much old sealant there is and how hard it is to remove
- How many rooms, windows or areas are involved
- Whether the work is at height
- Which sealant suits the joint
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or send us an email and we will talk you through it.
Helping us quote
To help us quote quickly, please include:
- If someone has resealed it before
- Pictures of the joints, sent by email
- Where the job is, and your postcode
- If it’s domestic, commercial or a hotel
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Sand mastic in Finberry: local notes
With historic houses such as Godinton House (about 4 miles north-west) nearby, there’s older building stock in the area around Finberry as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you look after a building such as Finberry Primary School, the mastic around its windows and doors needs looking after like any other building’s. For landlords with property near Ashford International station, any sash windows need sound mastic to keep draughts and rain out.
Finberry is about 2 miles south-east of Ashford, in Kent. Homes, rented property, offices and hotels in Finberry is covered for sand mastic, old or new, large or small. The work is guaranteed for a year. We cover 922 towns and villages across Kent, large and small. Our Chelmsford page covers work nearby (46 miles or so).
Jobs for sand mastic in TN25 is quoted and booked the same way as anywhere else. You’ll find streets such as Swift Avenue, Harrier Drive and Nuthatch Drive, all of which we cover. Other places close to Finberry include 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). Within a short drive, we also cover 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).
Local landmarks in Finberry
In Finberry, that means homes and buildings near Ashford Green Corridors and John Wallis Academy. The closest station to Finberry is Ashford International station, roughly 2 miles north-west. Well-known places in the area include William Harvey Hospital (1.9 miles north-east) and Ashford Designer Outlet (1.5 miles north-west). Not far away are Hatch Park.
Can I do it myself?
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.
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Places near Finberry
Also in Finberry
Aftercare tips
Simple care keeps the joints in good condition. Our advice:
- Avoid heavy scraping on the mastic joint
- Inspect the joints round the windows every year or so
- Keep modern sealant off the mastic
- Check with your local planning authority if your home is listed
Keep gutters and sills clear so water runs away from the surround. Constant wetting wears the mastic faster.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger.
Landlords, agents and businesses in Finberry
Housing providers, facilities teams and property managers book us too. Several sites can go on one quote.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.