Kent · England
Sand mastic for sash & case windows in Ratling, Kent
Sand mastic for Ratling and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Silicone on a period window that looks wrong
- Window mastic to renew ahead of painting
- Crumbling sand mastic round a window
Sand mastic in Ratling, done properly
If your home is listed or in a conservation area, check with your local planning authority whether consent is needed for work to windows. Sand mastic is often favoured as a like-for-like material. We work on sash and case windows, tenement windows and stone surrounds, and the jobs we see most are modern sealant on a period surround and crumbling sand mastic round a window.
Somewhere as small as Ratling, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
You get a 12-month guarantee, the same in Ratling as everywhere else we work.

- Where
- Ratling (CT3)
- Region
- Kent
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What happens on the day
When we arrive, we start by going over the job with you. We protect the surfaces around the joints before we start. The work usually takes a few hours for a single window, longer for several. Somewhere as small as Ratling, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Getting ready for the visit
- Move anything stored near the joints
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us if parking is tricky
Getting a quote
For sand mastic in Ratling, ring 0345 464 0079 or send us an email. Tell us what the problem is and where, and we will agree the price before any work begins.
Advice
Should I try it myself first?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
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.
What the job involves on each surface
Tenement and terrace windows
Windows above ground floor need the right access. Let us know the floor and we’ll confirm access.
Period and listed homes
On a listed home or in a conservation area, the right material matters. Sand mastic is often the preferred finish.
When it is not the sealant
New sealant can’t fix everything, and we’d rather say so up front. It will not solve:
- Sashes that need overhauling
- Planning or listed building consent (your local planning authority decides)
- Putty and glazing repairs
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think.
Surfaces we seal
- Stone surrounds
- Sash and case windows
- Tenement windows
- Timber door frames
- Period & listed homes
- Brick reveals
Leave it or put it right?
A silicone bead can be quicker, but on period stone or brick it often looks out of place. Sand mastic is the traditional material and blends with the stone or brick. Older cottages and farmhouses around Ratling can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why Ratling customers choose us
- 180+ five-star Google reviews
- An ARBOMaster approved applicator
- We leave the area clean and tidy
- Old sealant always removed completely
Take a look at how sealant jobs are priced or what customers say.
Looking after it afterwards
A little care helps the new joints last. Our advice:
- Avoid heavy scraping on the mastic joint
- Sort the mastic before the decorators arrive
- Clear gutters so water doesn’t pour onto the windows
- Leave the new mastic unpainted
Look at the mastic when you look over the windows. Small cracks are easier to deal with early.
An open joint round the box lets weather through. The longer it’s left, the more the joint opens as more mastic falls out.
FAQs for Ratling
Can you help a landlord with a rental near Adisham station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
Is Ratling within the area you cover?
Yes, Ratling is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Which is right for my windows, sand mastic or modern sealant?
Sand mastic usually suits period timber windows best. On modern frames, we’d normally use a flexible sealant, and we’ll explain why.
What information do you need?
Let us know what needs doing and where. If we need more, we will ask.
Can I add another job to the visit?
Yes, we can. More than one area can be quoted together.
Will you leave a mess?
We keep the work tidy. We protect what’s around the joints, and the area is left clean when we finish.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you do not need to watch us work.
Can I paint the new mastic?
Sand mastic is normally left unpainted, which is what traditional guidance recommends. Ask us before decorating.
Frames and glazing around Ratling
Historic houses like Goodnestone Park (about 1 mile north-east) are a reminder that the area around Ratling has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. 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.
In the older streets around St Peter, 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 St Joseph's Catholic Primary School, the mastic around its windows and doors needs looking after like any other building’s. For landlords with property near Adisham station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Ratling is about 6 miles south-east of Canterbury, in Kent. For sand mastic in and around Ratling, it’s easy to get a quote: please ring 0345 464 0079 or send us an email. We are based in Crawley and cover Kent, Ratling included. Ratling is one of 922 places in Kent we cover for sand mastic. There’s also a page for Chelmsford, roughly 47 miles from Ratling.
Work in CT3 works the same way as everywhere else we cover. Neighbouring places we cover for sand mastic include Nonington (1 mile south-east), Snowdown (1 mile south), Goodnestone (1 mile north-east), Chillenden (2 miles east) and Woolage Village (2 miles south). Larger places within reach include Canterbury (6 miles north-west), Margate (13 miles north-east), Dover (8 miles south-east), Folkestone (11 miles south), Ramsgate (11 miles north-east) and Broadstairs (13 miles north-east).
Near you in Ratling
For rail, the closest station is Adisham station, roughly 0.5 miles north-west of the centre. Nearby you will also find St Martins Hospital (5.2 miles north-west).
What else we do in Ratling
For landlords and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll give you a quote.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
