Kent · England
Sand mastic for sash & case windows in Adisham, Kent
Sand mastic in Adisham from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Crumbling sand mastic round a window
- Tired mastic found when preparing windows for paint
- Draughts and rain around sash boxes
Sand mastic in Adisham, done properly
A silicone bead around a sash window can look out of place and is not always the right material. Sand mastic gives a finish that matches the age of the house, and we can replace one with the other. We are often asked to deal with mastic worn away on windows facing the weather and draughty sash windows at the surround, across period & listed homes, tenement windows and brick reveals.
Outdoor sealant needs dry, clean surfaces, so work on frames around Adisham is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
We guarantee the work for a year. If something is not right with it in that time, tell us and we’ll put it right.
- Where
- Adisham (CT3)
- Wider area
- Kent
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What affects the cost of sand mastic
Every job gets its own quote. These are the things that affect it:
- Any working-time requirements on site
- Mould in or behind the old joints
- The old material and how stubborn it is
- How easy the joints are to reach
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
What to tell us for a quote
When you call or email, it’s useful to know:
- Pictures of the joints, sent by email
- The address or postcode of the job
- Whether it’s a home or a business
- What’s wrong with the joints now
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work before giving you a price.
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Planning or listed building consent (your local planning authority decides)
- Cracked or broken glass
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly.
Surfaces we seal
- Brick reveals
- Stone surrounds
- Tenement windows
- Period & listed homes
- Sash and case windows
- Timber door frames
Common questions in Adisham
Can you do sand mastic in Adisham?
Yes, Adisham is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or send us an email and tell us what needs doing.
Will you come out to Adisham?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you offer different sealant colours?
We’ll suggest a colour to suit the surroundings, from white and clear to greys and other shades. The choice depends on the product the joint needs.
Can sand mastic be painted?
The usual advice is to leave sand mastic unpainted. If you’re redecorating the window, ask us first and we’ll talk you through it.
Should I check with the council before work on a listed or conservation-area home?
Yes, it’s worth checking. Your local planning authority can say if consent is needed for work on a listed home or in a conservation area.
Are you ARBOMaster approved?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
What’s sand mastic made of?
Sand mastic is a traditional material for pointing round windows and doors. It combines sand with a linseed-oil-based binder.
Do you work for letting agents?
Yes. As well as householders, we work for landlords, agents, businesses and hotels in Adisham.
Windows and doors in Adisham
With historic houses such as Goodnestone Park (about 1.6 miles east) nearby, there’s older building stock in the area around Adisham as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Letting a property close to Adisham station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about. For site and facilities teams at buildings such as Adisham Church of England Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Adisham is about 5 miles south-east of Canterbury, in Kent. Every kind of property in Adisham can book us for sand mastic. Every job comes with our 12-month guarantee. Across Kent, we cover 922 places, Adisham among them. There’s also a page for Chelmsford, roughly 46 miles from Adisham.
Postcode districts we cover here for sand mastic: CT3. Whether your property is on Station Road, The Street and Church Lane or a nearby road, we can help. If you’re just outside Adisham, we cover Bloodden (1 mile south-east), Aylesham (1 mile south), Bramling (2 miles north), Bekesbourne (2 miles north-west) and Womenswold (2 miles south). Further out, we also cover Canterbury (5 miles north-west), Margate (13 miles north-east), Dover (9 miles south-east), Folkestone (11 miles south), Ramsgate (12 miles north-east) and Broadstairs (13 miles north-east).
Landmarks near Adisham
There’s a railway station in Adisham itself: Adisham station. A little further out are St Martins Hospital (4.3 miles north-west).
When to call us in Adisham
Paint, silicone or cement used over old mastic causes problems. They do not move with the timber and we normally remove them.
The most common problems we see are:
- Mastic round period door frames that has failed
- Tired mastic found when preparing windows for paint
- Draughty sash windows at the surround
- Cement or filler used on old window joints that has cracked
If you live in an older home near Church of the Holy Innocents, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What your quote should include
- Is VAT in the price?
- Which colour the sealant will be
- Are they insured?
- Who turns up on the day
Also near Adisham
Also in Adisham
How the visit works
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The job generally takes a few hours for a single window, longer for several. In a small place like Adisham, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each surround and agreeing the joints to renew.
- The loose and crumbling mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The mastic is finished to sit tidily against the stone or brick.
How to prepare
- Clear items away from the joints we are working on
- Mention any parking rules near the property
- Let us know about earlier repairs to the joints
How to 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, call 0345 464 0079 or drop us an email.
Related advice
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
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.
Landlord and commercial work in Adisham
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
Looking after it afterwards
Good habits help new joints last longer. A few tips:
- Avoid heavy scraping on the mastic joint
- Sort the mastic before the decorators arrive
- Ask the planning authority about consent for listed or conservation-area homes
- Leave the new mastic unpainted
Don’t run silicone over the new mastic. If anything cracks, get it looked at rather than patching it.
Once mastic starts to crumble, rain gets in. It can soak into the frame and the surrounding masonry so early renewal protects both.