Kent · England
Sand mastic for sash & case windows in Red Hill, Kent
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homeowners, landlords and businesses in Red Hill. Fully insured, ARBOMaster approved and guaranteed for a year.
- Weathered mastic on the most exposed windows
- Mastic dropping out of the joint
- Draughts and rain around sash boxes
Common questions in Red Hill
Do you work for landlords with property near Wateringbury station?
Yes. We work for landlords and agents as well as householders, and several properties can be quoted together. Just phone 0345 464 0079 or email us with the address and what needs doing, and we’ll send you a clear quote.
Will you come out to Red Hill?
Yes, Red Hill 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.
Do you remove the old sealant?
Yes, always, and completely. New sealant will not bond properly to old, so any old material comes out before anything new goes in.
Can you quote for more than one area?
Of course. Combining jobs makes good use of the visit.
Do you have insurance?
Yes. We are fully insured.
Is it messy?
No. We protect the surfaces around the joints, and we tidy up before we go.
Do the sealants smell?
Possibly a little. It fades as the sealant cures, and ventilation helps.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We will tell you what we’re using and why.
Sand mastic for homes and businesses in Red Hill
Our applicators renew the sand mastic around sash and case windows and doors set in stone or brick. The old mastic is raked out, and new mastic is applied and shaped by hand. If you have silicone on a period window that looks wrong and draughty sash windows at the surround, we can help.
Around Red Hill, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
Every job comes with a one-year guarantee, wherever you are in Kent.
- Where
- Red Hill (ME18)
- Region
- Kent
- Guarantee
- 12 months on all our work
- Quote
- A clear price before work begins
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Places near Red Hill
What else we do in Red Hill
What we do, step by step
The work is kept neat and contained to the joints we’re treating, so you can carry on as normal. The job normally takes anything from a few hours to a full day, depending on how many windows, and we explain the cure time before we leave. Somewhere like Red Hill 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 look at the surrounds with you and agree what needs doing.
- We rake out the old mastic and clean the joint.
- Large voids are packed out first, so the mastic isn’t too thick.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- We dress the surface so it sits neatly against the masonry.
Preparing for the visit
- Keep children and pets away from the work area
- Let us know about earlier repairs to the joints
- Let us know about stairs, lifts or work at height
How to get a quote
For sand mastic in Red Hill, call 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you will get a clear quote before work begins.
Related advice
What we’re called out for in Red Hill
Scraping and sanding before painting can loosen old mastic. It’s often found when windows are being prepared for paint.
These are the problems we’re asked about most:
- Draughts and rain around sash boxes
- Weathered mastic on the most exposed windows
- Gaps round a timber door in stone or brick
- Open joints round the window box
Rented homes near Wateringbury station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
What your quote should include
- The length of the guarantee
- Is the old sealant removed completely?
- When the joint can take water or movement
- What happens if they find a problem under the old sealant
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
Red Hill homes and the weather
With historic houses such as Old Soar Manor (about 4.8 miles west) nearby, there’s older building stock in the area around Red Hill as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. 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.
In the older streets around Church of St Peter and St Paul, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. For site and facilities teams at buildings such as Wateringbury Church of England Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Red Hill is about 4 miles west of Maidstone, in Kent. Red Hill gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. We cover 922 towns and villages across Kent, large and small. We also work in London, around 28 miles away.
Work in ME18 is quoted and booked the same way as anywhere else. Neighbouring places we cover for sand mastic include Teston (1 mile south-east), Wateringbury (1 mile south-west), Nettlestead (1 mile south-west), Barming Heath (1 mile east) and West Farleigh (1 mile south-east). Further out, we also cover Maidstone (4 miles east), Sittingbourne (14 miles north-east), Dartford (15 miles north-west), Sevenoaks (11 miles west), Royal Tunbridge Wells (11 miles south-west) and Gravesend (12 miles north).
Local landmarks in Red Hill
We work in homes and buildings around The Malling School and North Pole pub and the streets around them. The nearest railway station is Wateringbury station, roughly 0.8 miles south-west. Nearby you’ll also find Teapot Island (2.7 miles south) and Oakwood Hospital (2.4 miles east).
Honest limits
We will always be straight with you, so here’s what new sealant will not do:
- Planning or listed building consent (your local planning authority decides)
- Decayed frames that need repair
- Sashes that rattle, stick or will not open
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly.
What we seal
- Tenement windows
- Sash and case windows
- Brick reveals
- Timber door frames
- Stone surrounds
- Period & listed homes
Aftercare tips
Aftercare is simple, and it makes a real difference:
- Keep modern sealant off the mastic
- Avoid heavy scraping on the mastic joint
- Check the mastic when you check the paintwork
- Ask a joiner to look at soft timber first
Do not run silicone over the new mastic. If you see a crack, ask us to take a look before trying a quick fix.
Sound mastic protects the frame. Once it fails, water can sit against the timber, which can lead to rot.
Landlords, agents and businesses in Red Hill
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Landlords and agents in Red Hill can book us as well as householders. Sealant work between tenants keeps a property looking cared for before the next move-in.
Quotes for sand mastic in Red Hill
Some jobs are bigger than they look, and some smaller. What affects the quote:
- Mould in or behind the old joints
- The size of the job
- The product the joint needs
- The old material and how stubborn it is
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What we need to know
When you call or email, it’s useful to know:
- Where the property is
- If someone has resealed it before
- How many joints, rooms or windows are involved
- Pictures of the joints, sent by email
Every job is quoted individually, so the first step is telling us about yours. Simply call 0345 464 0079 or email us and describe the job and send photos if you have them.