Kent · England
Sand mastic for sash & case windows in Crockhurst Street, Kent
Sand mastic for Crockhurst Street, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Old cement repairs round a window that have failed
- Failed mastic on an exposed elevation
- Draughty sash windows at the surround
Sand mastic in Crockhurst Street
Old sand mastic cracks, crumbles and falls out over time and gaps open up round the frame. We rake it out and renew it and tidies the surround. We work on period & listed homes, timber door frames and stone surrounds, and common reasons people get in touch are weathered mastic on the most exposed windows and wind and rain getting in round a sash window.
Outdoor sealant needs dry, clean surfaces, so work on frames around Crockhurst Street is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
Our work is backed for twelve months, in Crockhurst Street and everywhere else we cover.
- Place
- Crockhurst Street (TN11)
- Wider area
- Kent
- Cover
- A year, on every job
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Landlord and commercial work in Crockhurst Street
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Aftercare tips
Simple care keeps the joints in good condition. We recommend:
- Keep modern sealant off the mastic
- Ask a joiner to look at soft timber first
- Check with your local planning authority if your home is listed
- Plan mastic work ahead of painting
When preparing windows for paint, take care around the mastic. Hard scraping can loosen it.
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.
Frames and glazing around Crockhurst 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.
Managing a site like Capel Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. For an older house near a landmark such as Church of All Saints, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Letting a property close to Tonbridge station? Then any sash windows need sound mastic to keep draughts and rain out.
Crockhurst Street is about 2 miles south-east of Tonbridge, in Kent. Homes, rented property, offices and hotels in Crockhurst Street is covered for sand mastic. Every job comes with our 12-month guarantee. Crockhurst Street is one of 922 places in Kent where we work for sand mastic. You can also see our page for Crawley, about 23 miles away.
Postcode districts we cover here for sand mastic: TN11. Other places close to Crockhurst Street include Tudeley (1 mile north-west), Tudeley Hale (1 mile north), Capel (1 mile east), Five Oak Green (1 mile east) and Colt's Hill (2 miles east). Larger places within reach include Maidstone (11 miles north-east), Sevenoaks (9 miles north-west), Royal Tunbridge Wells (4 miles south-west), Kings Hill (7 miles north-east), Foley Park (11 miles north-east) and Paddock Wood (3 miles east).
What’s near Crockhurst Street
Typical jobs here are in homes near The George And Dragon Public House, Hillview School for Girls and The Schools at Somerhill. The nearest railway station is Tonbridge station, about 2.5 miles west of the centre. A little further out are Tonbridge Castle (2.5 miles north-west) and Tonbridge Cottage Hospital (2.2 miles west). For a walk, there’s Tudeley Woods RSPB reserve and Barden Lake.
Crockhurst Street: your questions answered
Is Crockhurst Street in your area for sand mastic?
Yes, Crockhurst Street is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or drop us an email with a few details of the job.
I let a flat near Tonbridge station. Can you help?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear price.
When will the new mastic be hard?
Not straight away. It skins first and hardens fully later, and we’ll tell you what to expect.
Is it OK to seal over old sealant?
No. New silicone won’t bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.
Do the sealants smell?
It depends on the product. Some smell for a while, some hardly at all.
Can you match the sealant colour?
We’ll suggest a colour to suit the surroundings. The product needed can limit the range.
Will it make a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator.
How it works
All our tools and materials come with us in the van, so there’s nothing for you to buy. After a quick look at the joints together, we protect the area and start. It normally takes anything from a few hours to a full day, depending on how many windows. For a village or hamlet like Crockhurst Street, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- 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
- Try not to wet indoor joints just before the visit
- Tell us if parking is tricky
- Mention any leaks or damp you’ve noticed
Getting a quote
There’s no standard price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To get started, ring 0345 464 0079 or drop us an email.
Advice
Should I try it myself first?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
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.
Honest limits
Before booking, it’s worth knowing the limits too:
- Decayed frames that need repair
- Sash cords, weights and draught-proofing of the sashes
- Whether work needs listed building consent
If in doubt, ring 0345 464 0079 or send us an email and we will say what we think.
Joints and surfaces we work on
- Period & listed homes
- Timber door frames
- Tenement windows
- Stone surrounds
- Sash and case windows
- Brick reveals
What affects the quote in Crockhurst Street
For a quick quote, just ask. What matters most is:
- Access and height
- Any mould that needs treating
- The product the joint needs
- How many areas need sealing
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’ll know the price before we begin.
What we need to know
When you contact us, these details help:
- How many joints, rooms or windows are involved
- The problem you’ve noticed
- Access, such as stairs, a lift or height
- If someone has resealed it before
To get a quote, ring 0345 464 0079 or email us with the location and a short description of the problem. You will have a clear quote before we start.
Why act early in Crockhurst Street
Before painting the windows, it pays to renew the mastic. Painting over failed mastic does not seal it, and the new mastic is traditionally left unpainted. Older cottages and farmhouses around Crockhurst Street can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you are unsure, call 0345 464 0079 or email us and we’ll give you an honest view and a quote.
Why Crockhurst Street customers choose us
- Full insurance on every job
- Anti-fungal sanitary silicone in wet areas
- Domestic, commercial and hotel work
- Every job guaranteed for a year
Take a look at how sealant jobs are priced and our reviews.