Kent · England
Sand mastic for sash & case windows in Snowdown, Kent
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Snowdown, with a 12-month guarantee on every job. Ask us for a quote.
- Mastic dropping out of the joint
- Modern sealant on a period surround
- Patchy fillers round a sash window
Sand mastic in Snowdown
Silicone on a period window often looks wrong and does not suit the building. Sand mastic is the traditional choice and we can swap the silicone for it. If you’re dealing with window mastic to renew ahead of painting and old sand mastic that has cracked, crumbled or fallen out, we can help, on period & listed homes, stone surrounds and timber door frames alike.
Somewhere as small as Snowdown, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
Big or small, you get the same one-year guarantee.
- Place
- Snowdown (CT15)
- Region
- Kent
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Snowdown homes and the weather
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Goodnestone Park (about 2 miles north) nearby, there’s older building stock in the area around Snowdown as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
Schools such as St Joseph's Catholic Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. For an older house near a landmark such as St Peter, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Snowdown is about 7 miles north-west of Dover, in Kent. Jobs in Snowdown get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. We cover 922 towns and villages across Kent, from the larger towns to small villages. Chelmsford is on our list too, about 48 miles from Snowdown.
Every address in CT15 is covered for sand mastic. Sand mastic is available to properties on The Crescent, South Avenue and Weston Mews and the roads around them. Nearby, we also carry out sand mastic in Nonington (1 mile north-east), Woolage Village (1 mile south-west), Frogham (1 mile south-east), Ratling (1 mile north) and Barfrestone (2 miles south-east). Further out, we also cover Canterbury (7 miles north-west), Margate (14 miles north-east), Dover (7 miles south-east), Folkestone (9 miles south), Ramsgate (12 miles north-east) and Broadstairs (14 miles north-east).
Near you in Snowdown
There’s a railway station in Snowdown itself: Snowdown station.
What the job involves on each surface
Period and listed homes
Many older homes were built with sand mastic round the windows. If your home is listed, ask your local planning authority about consent.
Brick reveals
An open joint at a brick reveal lets weather in. Renewing the mastic closes it.
Why it’s worth doing now in Snowdown
Silicone might seem the quicker option, but on period stone or brick it often looks out of place. Sand mastic is the traditional material and finishes neatly against the masonry. In a small place like Snowdown, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
We don’t show prices on the website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or drop us an email and we’ll talk you through it.
What you get with us
- Experience in homes, commercial sites and hotels
- Anti-fungal sanitary silicone in wet areas
- Old sealant always removed completely
- Over 20 years’ experience
What happens on the day
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a few hours for a single window, longer for several and we leave things clean and tidy. In a small place like Snowdown, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check the window surrounds and agree which joints need renewing.
- 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 mastic is finished to sit tidily against the stone or brick.
How to prepare
- On commercial sites, let us know about site rules
- Tell us about access, such as stairs, a lift or high-level joints
- Clear items away from the joints we’re working on
How to get a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll talk you through the work.
Advice
What affects the cost of sand mastic
Call for a quick quote. The main things that affect it are:
- Whether old sealant or filler has to be cut out
- The product the joint needs
- Any mould that needs treating
- How many rooms, windows or areas are involved
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
Asking for a quote
Photos by email are helpful but not essential. Try to tell us:
- How many joints, rooms or windows are involved
- The address or postcode of the job
- Whether it’s a home or a business
- The problem you’ve noticed
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. Whenever you’re ready, ring 0345 464 0079 or send us an email.
Landlords, agents and businesses in Snowdown
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
Can I do it myself?
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.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Snowdown: your questions answered
Will you come out to Snowdown?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Can you help a landlord with a rental near Snowdown station?
Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
What exactly is sand mastic?
It’s the traditional filler for the joint round timber windows and doors. It’s made with sand and a linseed-oil-based binder.
What sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice.
What information do you need?
Just the basics: the address or postcode, what’s wrong and any access issues. Then call 0345 464 0079 or send us an email.
Do you take out the old sealant first?
Yes, every time. New silicone doesn’t stick to old silicone, so any old material comes out before anything new goes in.
What does sand mastic cost?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Can you match the sealant colour?
Normally, yes. White, clear and grey are common, and other colours are available for many products, and we agree the colour with you before we start.
Towns and villages near Snowdown
What else we do in Snowdown
Signs you need sand mastic in Snowdown
Timber frames move with the seasons. That movement opens up the mastic joint little by little.
Keep an eye out for any of the following:
- Weathered mastic on the most exposed windows
- Mastic round period door frames that has failed
- Gaps between timber frames and stone or brick
- Cement or filler used on old window joints that has cracked
For landlords with property near Snowdown station, any sash windows need sound mastic to keep draughts and rain out.
What your quote should include
- How long the guarantee is
- How hidden problems are handled
- What preparation is included
- Whether you can choose the colour