Kent · England
Sand mastic for sash & case windows in Durlock, Kent
Window and door surrounds in Durlock need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Modern sealant on a period surround
- Gaps between timber frames and stone or brick
- Mastic that needs renewing before redecorating
Sand mastic in Durlock
Across Durlock, we renew sand mastic around sash and case windows. Every joint is cleaned out and filled by hand for a neat, traditional finish. Common call-outs are for gaps where the frame meets the masonry and silicone on a period window that looks wrong, across sash and case windows, period & listed homes and tenement windows.
Around Durlock, 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.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Place
- Durlock (CT3)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before we start
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
How it works
Once we are on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes anything from a few hours to a full day, depending on how many windows. For a village or hamlet like Durlock, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- Each surround is checked first.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic is not too thick.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
How to prepare
- Tell us if parking is tricky
- Try not to wet indoor joints just before the visit
- Keep pets and children clear of the area while we work
Getting a quote
Every job is quoted individually, so the first step is telling us about yours. Just ring 0345 464 0079 or email us with the details.
Advice
For landlords and businesses
We also work for property managers and facilities teams in Durlock and across Kent. We can quote a run of properties together, and we’re fully insured.
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can be quoted together.
How we quote for sand mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- The amount of work
- The type of sealant required
- Whether there’s mould to deal with
- Whether old sealant or filler has to be cut out
The cost depends on the size of the job, how much old material has to come out and access to the work. You will have a clear quote before any work starts.
Asking for a quote
To make quoting easier, please include:
- Pictures of the joints, sent by email
- The rough size of the job
- Whether it’s a home or a business
- Where the property is
There’s no standard price list. Instead, we give you a clear quote for your job. To arrange one, ring 0345 464 0079 or drop us an email.
Frames and glazing around Durlock
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Goodnestone Park (about 2.7 miles south-west) nearby, there’s older building stock in the area around Durlock as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Letting a property close to Sandwich station? Then any sash windows need sound mastic to keep draughts and rain out. In the older streets around Church of St Nicholas, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Durlock is about 7 miles north-west of Deal, in Kent. Anywhere in CT3, our applicators can take on sand mastic. Our Kent coverage runs to 922 places, and Durlock is one of them. There’s also a page for Chelmsford, about 46 miles away.
Every address in CT3 is covered for sand mastic, from the main roads to the quietest streets. We also cover the places around Durlock: Guilton (1 mile north-east), Ash (1 mile east), Staple (1 mile south), Nash (1 mile north-west) and Barnsole (1 mile south). Further out, we also cover Canterbury (8 miles west), Margate (9 miles north-east), Dover (10 miles south), Folkestone (14 miles south), Ramsgate (8 miles north-east) and Broadstairs (9 miles north-east).
Around Durlock
Typical jobs here are in homes near The Chequer Inn, among other places. Durlock’s nearest station is Sandwich station, about 3.5 miles east. A little further out are White Mill (2.9 miles east). Green spaces nearby include Monk's Wall nature reserve.
Signs you need sand mastic in Durlock
Water gets into small cracks in the mastic and loosens it further. Exposed elevations generally fail first.
People generally contact us when they notice one of these:
- Silicone on a period window that looks wrong
- Mastic worn away on windows facing the weather
- Cement or filler used on old window joints that has cracked
- Old sand mastic that has cracked, crumbled or fallen out
Managing a site like Ash Cartwright and Kelsey Church of England Primary School? Then the mastic around its windows and doors needs looking after like any other building’s.
Comparing quotes
- What the quote includes, VAT included or not
- Whether you can choose the colour
- Are they insured?
- What the cure time is
What the job involves on each surface
Sash and case windows
On a sash window, the mastic joint shows on the outside, so a neat, even finish matters.
Period and listed homes
On a listed home or in a conservation area, the right material matters. Sand mastic is often the preferred finish.
FAQs for Durlock
Do you cover smaller places like Durlock?
Yes. Durlock is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you cover Durlock for sand mastic?
Yes, Durlock is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or drop us an email and let us know what needs doing, and we will give you a clear price.
Are you insured?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
Are you an approved applicator?
Yes. We’re an ARBOMaster approved applicator.
How long does sand mastic take to go off?
A skin forms quite soon, but full hardening takes longer. We’ll explain what to expect before we leave.
Can tenants book the work?
We are happy to deal with the tenant, landlord or agent. Just make sure your landlord agrees.
Is it messy?
Tidy work is part of the job. We protect what’s around the joints, and the area is left clean when we finish.
Is sand mastic better than silicone for my windows?
We will talk it through with you. Sand mastic suits many period homes, and modern sealants suit newer frames.
Other services in Durlock
Why deal with it now?
Gaps round a sash window let in rain and draughts. Water can get to the frame and the masonry, so dealing with it now protects both. Around Durlock, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all make a difference, and we’ll explain the quote if you ask.
Why choose Mr Mastic in Durlock
- ARBOMaster approved applicator
- Over 20 years’ experience
- We are fully insured
- 4.9 on Google from 180+ five-star reviews
Read how sealant jobs are priced and customer reviews.
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. Our tips:
- Check the mastic when you check the paintwork
- Keep sills and gutters clear so water drains away
- Avoid heavy scraping on the mastic joint
- Plan mastic work ahead of painting
Check the mastic when you check the paintwork. Catching cracks early keeps repairs small.
It’s best to renew mastic before painting the windows. Painting over failed mastic hides the problem for a while.