Kent · England
Sand Mastic in Priestwood Green
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Priestwood Green, with a one-year guarantee on every job. Ask us for a quote.
- Gaps where the frame meets the masonry
- Gaps round a timber door in stone or brick
- Failed mastic on an exposed elevation
DIY versus a professional finish
If you’ve already had a go yourself, that’s fine. We cut it out and start again.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
How we handle sand mastic in Priestwood Green
Sand mastic skins over fairly quickly, but it takes longer to harden fully. Traditionally, sand mastic is left unpainted, so ask us before you decorate. If you’re dealing with wind and rain getting in round a sash window and mastic round period door frames that has failed, we can help, whatever the surface.
Outdoor sealant needs dry, clean surfaces, so work on frames around Priestwood Green is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
Whatever the size of the job, it’s backed by our 12-month guarantee in Priestwood Green and across Kent.
- Location
- Priestwood Green (DA13)
- Region
- Kent
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Also near Priestwood Green
What else we do in Priestwood Green
Questions from Priestwood Green
Do you work for landlords with property near Sole Street station?
Yes, we work for landlords and agents. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before we start.
Will you come out to Priestwood Green?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
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.
How do I get a quote for sand mastic in Priestwood Green?
We do not publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
Which products do you use?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference.
Which is right for my windows, sand mastic or modern sealant?
For period timber windows in stone or brick, sand mastic is often the better fit. Modern frames normally suit a flexible sealant.
Where is Mr Mastic based?
We’re based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
How to look after the new joints
Good habits help new joints last longer. A few tips:
- Sort the mastic before the decorators arrive
- Check the mastic when you check the paintwork
- Clear gutters so water does not pour onto the windows
- Ask the planning authority about consent for listed or conservation-area homes
Leave the new mastic unpainted, which is the traditional advice. If you’re redecorating, ask us first.
Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry, so renewing it early is worth it.
When it is not the sealant
We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:
- Putty and glazing repairs
- Decisions on consent for listed homes
- Damaged stone surrounds
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly.
What we seal
- Timber door frames
- Sash and case windows
- Period & listed homes
- Tenement windows
- Brick reveals
- Stone surrounds
Do you need sand mastic in Priestwood Green?
Paint, silicone or cement used over old mastic causes problems. They do not suit the joint, and they normally need raking out.
Keep an eye out for these signs:
- Window mastic to renew ahead of painting
- Old cement repairs round a window that have failed
- Draughty sash windows at the surround
- Gaps round a timber door in stone or brick
Rented homes near Sole Street station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about.
What your quote should include
- How the joint is cleaned and prepared
- How long the guarantee is
- Which sealant they’ll use, and why
- Whether all the old sealant comes out first
How the job changes by surface
Stone surrounds
We take care not to mark the stone when the old mastic comes out.
Sash and case windows
Sash windows are where we do most sand mastic work. Each joint round the box is raked out and renewed.
Windows and doors in Priestwood Green
Historic houses like Cobham College (about 2.9 miles north-east) are a reminder that the area around Priestwood Green has older buildings as well as new. 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.
For an older house near a landmark such as Church of Our Lady of the Meadow, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Schools such as Culverstone Green Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Priestwood Green is about 5 miles south of Gravesend, in Kent. Jobs in Priestwood Green get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Across Kent, we cover 922 places, Priestwood Green among them. For nearby work, see our London page, about 22 miles away.
All of DA13 is within our area for sand mastic. Other places close to Priestwood Green include Priestwood (1 mile north-east), Harvel (1 mile south), South Street (1 mile west), Culverstone Green (1 mile south-west) and Foxendown (1 mile north). We also work in nearby towns such as Maidstone (9 miles south-east), Dartford (9 miles north-west), Sevenoaks (9 miles south-west), Gravesend (5 miles north), Tonbridge (11 miles south) and Northfleet (6 miles north).
Landmarks near Priestwood Green
Around Priestwood Green, our work takes us to homes and buildings near Camer Park Country Park and Meopham School and the streets around them. For rail, the closest station is Sole Street station, about 2.2 miles north. A little further out are Coldrum Long Barrow (2.1 miles south) and Leybourne Castle (4 miles south-east). For a walk, there’s Ranscombe Farm.
What happens if it’s left?
Replacing sash windows is a big decision for a period home, and in listed buildings it may need consent. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. Older cottages and farmhouses around Priestwood Green can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
The cost depends on how much there is to do, how much old material has to come out and access to the work. We give a clear quote before we start.
What you get with us
- Neat joints and a tidy finish
- We are fully insured
- Trusted Arbo and Everbuild sealants
- Sanitary silicone with an anti-fungal additive in wet areas
Read what affects the cost and what customers say.
How it works
We bring everything the job needs with us, so you do not need to buy or prepare anything. Once we’ve agreed what’s being done, we protect the area and start. It normally takes a few hours per window, depending on the condition of the joints. Somewhere as small as Priestwood Green, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by checking each surround and agreeing the joints to renew.
- Old, loose mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
Preparing for the visit
- Tell us about any previous sealing or DIY attempts
- Let us know about parking restrictions
- Plan for the work area to be out of bounds to pets and children
How to get a quote
For sand mastic in Priestwood Green, phone 0345 464 0079 or email us. Tell us what the problem is and where, and you’ll get a clear quote before any work starts.