Kent · England
Petham Sand Mastic
Sand mastic for Petham and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Mastic worn away on windows facing the weather
- Old cement repairs round a window that have failed
- Tired mastic found when preparing windows for paint
How we handle sand mastic in Petham
We renew sand mastic around sash windows and doors in stone and brick. Out comes the old, loose mastic, the joint is prepared and new mastic is shaped by hand. Common call-outs are for cement or filler used on old window joints that has cracked and gaps where the frame meets the masonry, across period & listed homes, stone surrounds and sash and case windows.
Around Petham, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
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.
- Location
- Petham (CT4)
- Wider area
- Kent
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
For landlords and businesses
Letting agents and landlords in Petham can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
We also work for property managers and facilities teams. Several sites can go on one quote, and we’re fully insured.
Surface by surface
Sash and case windows
Sash windows are where we do most sand mastic work. We renew the mastic round each box.
Period and listed homes
Period homes look their best with traditional materials.
What sand mastic looks like in Petham
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.
If you live in an older home near Church of All Saints, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you look after a building such as Petham Primary School, larger buildings have plenty of frames, and the mastic around each one ages. Rented homes near Chartham station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
Petham is about 4 miles south of Canterbury, in Kent. If you need sand mastic in Petham, it’s easy to get a quote: please call 0345 464 0079 or email us. We cover Kent from our Crawley base, Petham included. Petham is one of 922 places in Kent we cover for sand mastic. For nearby work, see our Chelmsford page, about 43 miles away.
All of CT4 is covered for sand mastic, from the main roads to the quietest streets. Local streets include The Street, Vicarage Hill and Town Road. If you are just outside Petham, we cover Garlinge Green (1 mile north-west), Lower Hardres (2 miles north-east), Upper Hardres (2 miles east), Anvil Green (2 miles south-west) and Pett Bottom (2 miles east). Larger places within reach include Ashford (10 miles south-west), Canterbury (4 miles north), Dover (12 miles south-east), Folkestone (11 miles south-east), Whitstable (9 miles north) and Deal (15 miles east).
Local landmarks in Petham
Petham’s nearest station is Chartham station, roughly 2.6 miles north-west of the centre. Well-known places in the area include Canterbury Castle (3.8 miles north) and Kent and Canterbury Hospital (3.4 miles north-east). The countryside around Petham includes Blean Woods RSPB Reserve.
When it isn’t the sealant
A few problems are outside what sealant work can do:
- Timber that has rotted
- Damaged stone surrounds
- Sashes that need overhauling
If in doubt, call 0345 464 0079 or email us and we will say what we think.
Joints and surfaces we work on
- Brick reveals
- Timber door frames
- Sash and case windows
- Stone surrounds
- Tenement windows
- Period & listed homes
Other services in Petham
Aftercare tips
Good habits help new joints last longer. Our tips:
- Ask a joiner to look at soft timber first
- Ask us before painting near the mastic
- Find out about consent before window work on a listed home
- Keep sills and gutters clear so water drains away
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. The longer it’s left, the more the joint opens.
Your questions about sand mastic in Petham
Can you do sand mastic in Petham?
Yes. We work across London and the South East, and Petham is part of that. You can phone 0345 464 0079 or drop us an email and tell us what needs doing.
Will you come out to Petham?
Yes. Petham is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Which is right for my windows, sand mastic or modern sealant?
That depends on your windows. Period windows in stone or brick generally suit sand mastic, while modern frames normally get a flexible sealant.
Do I need to be at home?
That depends on where the joints are. Inside work needs someone to give us access, and for outside work we’ll agree access with you when we book.
Are you ARBOMaster approved?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Can you do several jobs on one visit?
Yes. Tell us about everything you’d like done.
What guarantee comes with the work?
Every job comes with our one-year guarantee, and we are fully insured.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
What happens on the day
You do not need to clear the whole room or building before we come, only the area right around the joints. We protect the rest, and the job takes a few hours for a single window, longer for several for a typical job. Somewhere like Petham needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- 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.
How to prepare
- Let us know about earlier repairs to the joints
- For indoor joints, keep the area dry beforehand if you can
- Mention any tricky access
Ask for a quote
Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we will explain what’s involved.
Advice
What affects the quote in Petham
Jobs vary more than people expect. What affects the quote:
- Whether old sealant or filler has to be cut out
- The size of the job
- Mould in or behind the old joints
- How many rooms, windows or areas are involved
Combining jobs into one visit usually makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
What to tell us for a quote
There’s no need for technical detail. Just tell us:
- Any previous sealing or DIY work
- Where the job is, and your postcode
- How we’d reach the joints
- A few pictures by email, if you can
We quote each job on its own. Just phone 0345 464 0079 or email us with the details, and photos are welcome.
DIY versus a professional finish
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.