Kent · England
Sand mastic for sash & case windows in Detling, Kent
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homeowners, landlords and businesses in Detling. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Mastic round period door frames that has failed
- Crumbling sand mastic round a window
- Tired mastic found when preparing windows for paint
What affects the quote in Detling
We quote each job individually. This is what makes a difference:
- How much old sealant there is and how hard it is to remove
- Working hours on commercial sites
- Access and height
- How many areas need sealing
Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you are unsure, phone 0345 464 0079 or drop us an email for an honest opinion and a quote.
What we need to know
To make quoting easier, let us know:
- The address or postcode of the job
- If it’s domestic, commercial or a hotel
- The rough size of the job
- Pictures of the joints, sent by email
Every job is quoted individually, so start by telling us what you need. Simply ring 0345 464 0079 or email us and describe the job and send photos if you have them.
About our sand mastic in Detling
If your home is listed or in a conservation area, check with your local planning authority if consent is needed before window work. Like-for-like sand mastic is often the preferred finish. We’re often asked to deal with modern sealant on a period surround and gaps round a timber door in stone or brick, on brick reveals, stone surrounds and tenement windows.
Outdoor sealant needs dry, clean surfaces, so work on frames around Detling is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
You’re covered for a year from the day we finish. If anything is not right with it, call 0345 464 0079 or send us an email.
- Location
- Detling (ME14)
- Region
- Kent
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
How to look after the new joints
After the cure time, these simple habits help:
- Ask a joiner to look at soft timber first
- Ask us before painting near the mastic
- Clear gutters so water does not pour onto the windows
- Check the mastic when you check the paintwork
Leave the new mastic unpainted, which is the traditional advice. If you are redecorating, ask us first.
Once mastic starts to crumble, rain gets in. That water can reach the timber frame and the wall, so renewing it early is worth it.
Detling homes and the weather
Historic houses like Stoneacre (about 3 miles south) are a reminder that the area around Detling has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Schools such as Valley Park School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. In the older streets around St Martin of Tours Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame. For landlords with property near Bearsted station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Detling is about 3 miles north-east of Maidstone, in Kent. Our applicators cover sand mastic for homes and businesses in Detling and the surrounding area, as part of our work across Kent. Across Kent, we cover 922 places, and Detling is one of them. For nearby work, see our Chelmsford page, about 31 miles away.
Here we cover the ME14 postcode area for sand mastic. Whether your property is on The Street, Princes Way and Queens Way or a nearby road, we can help. Nearby, we also carry out sand mastic in Thurnham (1 mile south-east), Grove Green (1 mile south-west), Harbourland (1 mile west), Weavering (2 miles south) and Bearsted (2 miles south). We also work in nearby towns such as Maidstone (3 miles south-west), Sittingbourne (8 miles north-east), Gravesend (12 miles north-west), Tonbridge (14 miles south-west), Faversham (14 miles east) and Northfleet (14 miles north-west).
Landmarks near Detling
Typical jobs here are in homes near The Larches and The Cock Horse pub. The nearest railway station is Bearsted station, about 1.4 miles south. Well-known places in the area include KIMS hospital (0.8 miles south-west) and The Mall Maidstone (2.4 miles south-west). For a walk, there’s Burham Down and Detling Hill.
How the visit works
All our tools and materials come with us in the van, so there’s nothing for you to buy. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take anything from a few hours to a full day, depending on how many windows. Somewhere as small as Detling, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- For business premises, tell us about site rules or sign-in
- Clear items away from the joints we’re working on
Getting a quote
To get a quote, call 0345 464 0079 or send us an email with the location and a short description of the problem. We’ll give you a clear quote before any work starts.
Read more
Landlords, agents and businesses in Detling
Letting agents and landlords in Detling can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
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.
Towns and villages near Detling
Other services in Detling
Different surfaces, different methods
Tenement and terrace windows
Where a building is shared, window work may involve neighbours so it’s worth checking responsibilities.
Brick reveals
We rake out the old mastic and pack deep voids before pointing.
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Common questions in Detling
Will you come out to Detling?
Yes. Detling is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
I let a flat near Bearsted station. Can you help?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before we start.
Can I paint the new mastic?
Sand mastic is normally left unpainted, as guidance on traditional windows advises. Talk to us before any painting near it.
Do you have insurance?
Yes. Mr Mastic is fully insured, and we’ve been doing sealant work for more than 20 years.
Is the work guaranteed?
Every job comes with our one-year guarantee.
Can you quote for more than one area?
Yes. Several rooms, windows or areas can go on one quote.
What does sand mastic cost?
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.
Can I choose the sealant colour?
Normally, yes. White, clear and grey are common, and other colours are available, and we’ll agree it with you first.
Leave it or put it right?
Draughts round a sash window are not always the sashes. Open mastic joints round the box can let air in, and renewing the mastic closes them. In a small place like Detling, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
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. You will know the price before we begin.
Why choose Mr Mastic in Detling
- Rated 4.9 stars on Google
- Old sealant always removed completely
- Approved under the ARBOMaster scheme
- We’re fully insured
Take a look at our cost guide and customer reviews.