Kent · England
Sand mastic for sash & case windows in West Hythe, Kent
We cover West Hythe for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Gaps round a timber door in stone or brick
- Window mastic to renew ahead of painting
- Gaps between timber frames and stone or brick
How it works
We work through the job in order: protect, prepare, seal, tidy. Typically it takes anything from a few hours to a full day, depending on how many windows. In a small place like West Hythe, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Before we arrive
- Keep children and pets away from the work area
- Tell us if parking is tricky
- Clear items away from the joints we’re working on
How to get a quote
Need a quote? Please ring 0345 464 0079 or email us with a few details. We’ll explain what we’d do and give you a clear price before work begins.
Related advice
How we handle sand mastic in West Hythe
Across West Hythe, we renew sand mastic around sash and case windows. Each joint is raked out, prepared and pointed by hand, finished to suit the masonry. We work on timber door frames, sash and case windows and tenement windows, and the jobs we see most are silicone on a period window that looks wrong and failed mastic on an exposed elevation.
Around West Hythe, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
Every job is covered by our 12-month guarantee, wherever you are in Kent.
- Location
- West Hythe (CT21)
- Wider area
- Kent
- Cover
- A year, on every job
- Quote
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
West Hythe questions
Is West Hythe within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
I let a flat near Westenhanger station. Can you help?
Yes. We work for landlords and agents as well as householders, and several properties can go on one quote. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Is it worth trying it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Can I add another job to the visit?
Yes. More than one area can go on one quote.
Will you leave a mess?
Not at all. The area is protected while we work and cleaned up afterwards.
Is it OK to seal over old sealant?
No. New silicone will not bond to old silicone, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
How long does sand mastic take to harden?
The surface skins quite quickly and it hardens fully over a longer time. The weather and joint depth both affect it.
Do the sealants smell?
Some sealants have a smell while they cure. Opening a window helps.
Frames and glazing around West Hythe
West Hythe is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around older windows and doors, especially on the side facing the sea. With historic houses such as Westenhanger Castle (about 1.8 miles north) nearby, there’s older building stock in the area around West Hythe as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
Homes close to Church of St Stephen include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. For site and facilities teams at buildings such as Lympne Church of England Primary School, its window and door frames need their mastic kept sound, just like a home’s.
West Hythe is about 2 miles west of Hythe, in Kent. Across the CT21 area, we cover sand mastic for homes and businesses. 922 places in Kent are on our list, from the larger towns to small villages. For nearby work, see our Chelmsford page.
Jobs for sand mastic in CT21 works the same way as everywhere else we cover. Whether your property is on Royal Military Road, St Mary's Road and West Hythe Road or anywhere close by, our applicators can take on the job. Close by, we work in Lympne (1 mile north-west), Palmarsh (1 mile south-east), Berwick (1 mile north), Pedlinge (1 mile north-east) and Newingreen (1 mile north). Within a short drive, we also cover Ashford (9 miles north-west), Canterbury (15 miles north), Dover (13 miles north-east), Folkestone (6 miles east), Tower Hamlets (12 miles east) and Hawkinge (6 miles north-east).
What’s near West Hythe
Typical jobs here are in homes near Brockhill Park Performing Arts College, Sandling Park and Botolphs Bridge Inn, among other places. The closest station to West Hythe is Westenhanger station, roughly 1.9 miles north. Other landmarks nearby include Lympne Castle (less than half a mile north-west) and Hythe Museum (2.2 miles east). The countryside around West Hythe includes Tolsford Hill.
Different surfaces, different methods
Tenement and terrace windows
Tenements and terraces often have many sash windows with ageing mastic. We can do one window or several.
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. If your home is listed, ask your local planning authority about consent.
What we’re called out for in West Hythe
Rain on the window surround works into any crack and loosens it further. Windows facing the weather tend to go first.
Look out for any of the following:
- Tired mastic found when preparing windows for paint
- Cement or filler used on old window joints that has cracked
- Modern sealant on a period surround
- Mastic worn away on windows facing the weather
Rented homes near Westenhanger station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
What to look for in a quote
- Whether all the old sealant comes out first
- What the cure time is
- How the colour is chosen
- Who does the work, and how experienced they are
What sealant work cannot fix
We will always be straight with you, so here’s what new sealant will not do:
- Sash cords, weights and draught-proofing of the sashes
- Crumbling stone or brickwork round the window
- Rotten sashes, sills or window boxes (a joiner’s job)
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly.
What we seal
- Sash and case windows
- Timber door frames
- Period & listed homes
- Stone surrounds
- Brick reveals
- Tenement windows
Places near West Hythe
What else we do in West Hythe
DIY versus a professional finish
If you are 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 fails, we can still redo it.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Looking after it afterwards
Good habits help new joints last longer. A few tips:
- Do not run silicone over sand mastic
- Have rotten timber repaired before new mastic goes in
- Leave the new mastic unpainted
- Clear gutters so water does not pour onto the windows
Leave the new mastic alone while it firms up. It forms a skin fairly soon but needs longer to fully harden.
Crumbling mastic lets rain into the joint. That water can reach the timber frame and the wall, so renewing it early is worth it.
For landlords and businesses
For anyone letting property in or around West Hythe, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and photos by email help.
Housing providers, facilities teams and property managers book us too in West Hythe and across Kent. Several sites can go on one quote, and we are fully insured.