Kent · England
Sand Mastic in Boughton under Blean
Sand mastic across Boughton under Blean and nearby, with old sealant always removed completely and a 12-month guarantee.
- A silicone bead on a sash window that spoils the look
- Crumbling sand mastic round a window
- Wind and rain getting in round a sash window
How we handle sand mastic in Boughton under Blean
A silicone bead around a sash window can look out of place and doesn’t suit the building. Sand mastic gives a finish that matches the age of the house, and we can replace one with the other. If you are dealing with window mastic to renew ahead of painting and wind and rain getting in round a sash window, we can help, whatever the surface.
Mastic can only go onto a dry, clean joint, so window work in Boughton under Blean is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
Big or small, it’s backed by our 12-month guarantee.
- Location
- Boughton under Blean (ME13)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026

Common questions in Boughton under Blean
Do you work for landlords with property near Selling station?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Is Boughton under Blean within the area you cover?
Yes, Boughton under Blean is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
What exactly is sand mastic?
A traditional pointing material made from sand and a linseed-oil-based binder, used between timber frames and stone or brick.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Is it possible to take out silicone and use sand mastic instead?
Yes. We remove the silicone and clean the joint, then point it with sand mastic.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Is sand mastic better than silicone for my windows?
It depends on the window. Period windows in stone or brick usually suit sand mastic, while modern frames normally get a flexible sealant.
What do you put in the joint?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
What the job involves on each surface
Period and listed homes
Materials matter on listed and conservation-area homes. Sand mastic is often the preferred finish.
Stone surrounds
Old stone surrounds are often uneven, so the gap is not the same all the way round. Sand mastic is shaped by hand to suit.
What we cannot put right
Some problems need a builder, plumber or other trade rather than us:
- Decisions on consent for listed homes
- Sash cords, weights and draught-proofing of the sashes
- Rotten sashes, sills or window boxes (a joiner’s job)
If in doubt, ring 0345 464 0079 or email us and we will say what we think before booking.
Surfaces we seal
- Timber door frames
- Stone surrounds
- Tenement windows
- Period & listed homes
- Sash and case windows
- Brick reveals
What we do, step by step
On the day, we look over the joints with you first. We protect the surfaces around the joints before any work begins. Most jobs take a few hours per window, depending on the condition of the joints. In a small place like Boughton under Blean, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Preparing for the visit
- Move anything stored near the joints
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us about any previous sealing or DIY attempts
Getting a quote
For sand mastic in Boughton under Blean, phone 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before any work starts.
Read more
Towns and villages near Boughton under Blean
Also in Boughton under Blean
What affects the quote in Boughton under Blean
Jobs vary more than people expect. What affects the quote:
- How many rooms, windows or areas are involved
- Working hours on commercial sites
- The product the joint needs
- Whether old sealant or filler has to be cut out
The cost depends on the amount of work, how much old material has to come out and how easy the joints are to reach. We give a clear quote before we start, so you know where you stand.
Helping us quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- A few photos by email, if you can
- Whether it’s a home or a business
- The rough size of the job
- The problem you’ve noticed
For a quote, call 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You will have a clear quote before any work starts.
Signs you need sand mastic in Boughton under Blean
Rain on the window surround works into any crack and pushes it out. Exposed elevations usually fail first.
Common reasons people contact us include:
- Wind and rain getting in round a sash window
- Mastic worn away on windows facing the weather
- Mastic dropping out of the joint
- Open joints round the window box
Homes close to St Barnabas include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Questions to ask before booking
- Who does the work, and how experienced they are
- When the joint can take water or movement
- How the colour is chosen
- Whether all the old sealant comes out first
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. A few tips:
- Leave the new mastic unpainted
- Look over the window mastic once a year
- Get any rot dealt with first
- Renew mastic before redecorating the windows
Avoid painting over the new mastic, which is the traditional advice. Ask us before any decorating around it.
It’s best to renew mastic before painting the windows. Paint over cracked mastic only covers it up.
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 in Boughton under Blean and across Kent. Several sites can be quoted together.
Windows and doors in Boughton under Blean
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Managing a site like Boughton-under-Blean and Dunkirk Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. Letting a property close to Selling station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
Boughton under Blean is about 3 miles south-east of Faversham, in Kent. If you need sand mastic in Boughton under Blean, it’s easy to get a quote: please phone 0345 464 0079 or send us an email. We cover Kent from our Crawley base, Boughton under Blean included. Our Kent coverage runs to 922 places, and Boughton under Blean is one of them. We also work in Chelmsford, about 37 miles from Boughton under Blean.
Every address in ME13 is within our area for sand mastic, from the main roads to the quietest streets. Local streets include London Road, The Street and The Crescent, and we cover them all. We also cover the places around Boughton under Blean: Hickmans Green (1 mile south-west), Winterbourne (1 mile south), Dunkirk (1 mile east), Oversland (1 mile south) and South Street (1 mile south-west). We also work in nearby towns such as Ashford (11 miles south), Canterbury (5 miles east), Sittingbourne (10 miles west), Whitstable (5 miles north-east), Faversham (3 miles north-west) and Herne Bay (9 miles north-east).
Near you in Boughton under Blean
We work in homes and buildings around Mount Ephraim Gardens and The Queens Head pub, among other places. The nearest railway station is Selling station, roughly 1.4 miles south-west of the centre. A little further out are Chilham Castle (3.5 miles south) and Eastbridge Hospital of St Thomas the Martyr (5.2 miles east). Open spaces near Boughton under Blean include Blean Woods RSPB Reserve.
