Kent · England
Sand mastic for sash & case windows in Frittenden, Kent
Professional sand mastic in and around Frittenden, with old sealant always removed completely and a 12-month guarantee.
- Mastic worn away on windows facing the weather
- Open joints round the window box
- Wind and rain getting in round a sash window
Do you need sand mastic in Frittenden?
Previous repairs in cement or silicone often trap water or crack away. They don’t move with the timber, and they normally need raking out.
It’s worth asking for a quote if you see:
- Open joints round the window box
- Patchy fillers round a sash window
- Mastic worn away on windows facing the weather
- Tired mastic found when preparing windows for paint
For landlords with property near Headcorn station, any sash windows need sound mastic to keep draughts and rain out.
Questions to ask before you book
- Whether the sealant suits the joint
- How the surfaces are prepared before sealing
- Whether all the old sealant comes out first
- Who does the work, and how experienced they are
Sand mastic in Frittenden
Silicone on a period window often looks wrong and does not suit the building. Sand mastic gives a finish that matches the age of the house, and we can replace one with the other. Typical jobs include silicone on a period window that looks wrong and cement or filler used on old window joints that has cracked, across timber door frames, stone surrounds and sash and case windows.
Homes in small places like Frittenden often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
The work is covered for a year after we finish. If anything isn’t right with it, phone 0345 464 0079 or email us.
- Location
- Frittenden (TN17)
- Region
- Kent
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Places near Frittenden
More services for Frittenden
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Take care around the mastic when scraping paint
- Check the mastic when you check the paintwork
- Leave the new mastic unpainted
- Clear gutters so water does not pour onto the windows
Leave the new mastic unpainted, which is the traditional advice. If you’re redecorating, ask us first.
Sound mastic protects the frame. Once it fails, water can sit against the timber, which can lead to rot.
Landlord and commercial work in Frittenden
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
How we quote for sand mastic
The quote reflects the job in front of us. We take into account:
- How many rooms, windows or areas are involved
- Any mould that needs treating
- Any working-time requirements on site
- How much old sealant there is and how hard it is to remove
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part.
Helping us quote
Before you ask for a quote, have a think about:
- How many joints, rooms or windows are involved
- The problem you’ve noticed
- Access, such as stairs, a lift or height
- Pictures of the joints, sent by email
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we will talk you through the work and give you a clear quote.
The process
The work is kept neat and contained to the joints we are treating, so you can carry on as normal. The job usually takes a few hours per window, depending on the condition of the joints, and we tell you how long to leave it before we go. In a small place like Frittenden, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic is not too thick.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Before we arrive
- Mention any leaks or damp you’ve noticed
- Clear items away from the joints we are working on
- Mention any tricky access
Getting a quote
If you’re in Frittenden and need sand mastic, phone 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you will get a clear quote before we start.
Related advice
What happens if it’s left?
If you are redecorating, renew the mastic first. Painting over failed mastic doesn’t seal it, and the new mastic is traditionally left unpainted. In a small place like Frittenden, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
What it costs depends on the amount of work, how much old material has to come out and access to the work. We give a clear quote before work begins, so you know where you stand.
Why Frittenden customers choose us
- Over 20 years’ experience
- Sanitary silicone with an anti-fungal additive in wet areas
- Full insurance on every job
- ARBOMaster approved applicator
Take a look at our cost guide and our reviews.
Questions from Frittenden
Is Frittenden in your area for sand mastic?
Yes, Frittenden is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or email us and let us know what needs doing, and we’ll send you a clear quote.
Is Frittenden within the area you cover?
Yes, Frittenden is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can sand mastic be painted?
Sand mastic is normally left unpainted, as guidance on traditional windows advises. Ask us before decorating.
Do you guarantee sand mastic work?
Our 12-month guarantee applies to all our work.
Can you replace silicone on a period window with sand mastic?
Yes, we do this often. All the old silicone is removed first so the mastic beds in well.
How long does the job take?
Typically it takes a few hours for a single window, longer for several. Larger jobs naturally take longer, and we’ll tell you how long to expect.
How long does sand mastic take to harden?
The surface skins quite quickly, then hardens over a longer period. The weather and joint depth both affect it.
Is sand mastic better than silicone for my windows?
Sand mastic generally suits period timber windows best. On modern frames, we’d normally use a flexible sealant.
How the job changes by surface
Sash and case windows
On a sash window, the mastic joint shows on the outside so we finish it carefully.
Timber door frames
Doors face weather and wear and the mastic can crack early. It’s renewed by hand.
What sand mastic looks like in Frittenden
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For an older house near a landmark such as Church of St Mary, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Managing a site like Frittenden Church of England Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.
Frittenden is about 9 miles south of Maidstone, in Kent. Frittenden gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Across Kent, we cover 922 places, Frittenden among them. There’s also a page for Crawley, about 34 miles away.
Here we cover the TN17 postcode area for sand mastic. You will find streets such as The Street, Inglis Close and Parish Avenue. We also cover Sinkhurst Green (1 mile north), Knox Bridge (1 mile west), Cranbrook Common (2 miles south-west), Sissinghurst (2 miles south-west) and Staplehurst (2 miles north-west). Further out, we also cover Maidstone (9 miles north), Ashford (12 miles east), Sittingbourne (15 miles north-east), Royal Tunbridge Wells (14 miles west), Tonbridge (14 miles west) and Kings Hill (12 miles north-west).
Around Frittenden
In Frittenden, that means homes and buildings near Bell And Jorrocks Public House, among other places. Frittenden’s nearest station is Headcorn station, roughly 2.5 miles north-east of the centre. Other landmarks nearby include Sissinghurst Castle (1.7 miles south) and Benenden Hospital (3.8 miles south).