Kent · England
Sand mastic for sash & case windows in Nash Street, Kent
Problem with your window and door surrounds in Nash Street? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Window mastic to renew ahead of painting
- Wind and rain getting in round a sash window
- Failed mastic on an exposed elevation
About our sand mastic in Nash Street
Our applicators renew the sand mastic around sash and case windows and doors in stone and brick. The old mastic is raked out, and new mastic is applied and shaped by hand. If you’re dealing with patchy fillers round a sash window and window mastic to renew ahead of painting, we can put it right.
In a village or hamlet like Nash Street, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
We stand behind the work with a one-year guarantee.
- Location
- Nash Street (DA13)
- Region
- Kent
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
How we quote for sand mastic
Every job gets its own quote. These are the things that affect it:
- Any mould that needs treating
- Whether old sealant or filler has to be cut out
- The number and length of the joints
- The type of sealant required
Doing several joints on one visit usually makes better use of the time than several visits. You will get one clear quote for the whole job.
Asking for a quote
To make quoting easier, please include:
- The problem you’ve noticed
- Any access issues, like height or stairs
- Roughly how big the job is
- The type of property
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. When it suits you, call 0345 464 0079 or send us an email.
Common problems we fix in Nash Street
Scraping and sanding before painting can loosen old mastic. Many people find it crumbling when they prepare the windows, which is a good time to renew it.
Look out for these signs:
- Cement or filler used on old window joints that has cracked
- Modern sealant on a period surround
- Mastic dropping out of the joint
- Gaps round a timber door in stone or brick
Rented homes near Meopham station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
Before you book anyone
- When the joint can take water or movement
- Which sealant they’ll use, and why
- The length of the guarantee
- What happens if they find a problem under the old sealant
When something else is needed
In fairness, some problems need a different trade:
- Crumbling stone or brickwork round the window
- Decisions on consent for listed homes
- Rotten sashes, sills or window boxes (a joiner’s job)
If in doubt, call 0345 464 0079 or email us and we’ll say what we think.
Where we work in Nash Street
- Stone surrounds
- Sash and case windows
- Brick reveals
- Timber door frames
- Period & listed homes
- Tenement windows
Leave it or put it right?
Cement-based fillers and modern sealants don’t always suit a period surround. Sand mastic matches what was there and that can be important for listed homes. Around Nash Street, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
What you get with us
- One-year guarantee on every job
- Trusted Arbo and Everbuild sealants
- Neat joints and a tidy finish
- Any old sealant cut out fully, not covered over
Take a look at our cost guide and what customers say.
Common questions in Nash Street
Do you cover Nash Street for sand mastic?
Yes, Nash Street is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear quote.
I let a flat near Meopham station. Can you help?
Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Is there any odour?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
Are you fully insured?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
Do you do commercial work?
Yes. We’ve worked for hotels, offices and other businesses.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status.
Does someone need to be in?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Will the old sealant be removed?
Yes, always, and completely. New sealant won’t bond properly to old, so the joint is cleaned back first.
Places near Nash Street
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What we do, step by step
Good joint work is mostly preparation, so that is where we spend the time. Joints are cleaned back and dried before anything new goes in. All told, the work takes a few hours per window, depending on the condition of the joints. Somewhere as small as Nash Street, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we agree which joints need doing.
- 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.
- The surface is finished to suit the stone or brick.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Keep children and pets away from the work area
- Mention any parking rules near the property
Ask for a quote
For a quote, phone 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You will have a clear quote before work begins.
Read more
Frames and glazing around Nash Street
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Cobham College (about 1.8 miles east) are a reminder that the area around Nash Street 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.
Schools such as Istead Rise Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages. Homes close to Church of St Mildred include some older properties, and the joint between an old wall and a newer frame is generally the first place rain gets in.
Nash Street is about 3 miles south of Gravesend, in Kent. If you need sand mastic in Nash Street, please phone 0345 464 0079 or email us for a quick quote. We cover Kent from our Crawley base. Across Kent, we cover 922 places, Nash Street among them. There’s also a page for London, roughly 21 miles from Nash Street.
Work in DA13 works the same way as everywhere else we cover. We also cover the places around Nash Street: Round Street (1 mile east), Longfield Hill (1 mile south-west), Meopham (1 mile south), Sole Street (1 mile south-east) and New Barn (1 mile west). We also work in nearby towns such as Maidstone (12 miles south-east), Dartford (7 miles north-west), Sevenoaks (11 miles south-west), Gravesend (3 miles north), Tonbridge (14 miles south) and Northfleet (3 miles north).
Near you in Nash Street
We work in homes and buildings around Meopham School and Jeskyns. For rail, the closest station is Meopham station, roughly 0.7 miles south of the centre. A little further out are Stone Castle (4.7 miles north-west) and Gravesham Community Hospital (3.2 miles north). Green spaces nearby include Sawyers Lake and Gad's Hill.
How the job changes by surface
Timber door frames
Door frames get knocked and soaked and the mastic can crack early. It’s renewed by hand.
Stone surrounds
Sand mastic sits naturally against stone. The finish blends with the masonry.
Should I try it myself first?
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.