Kent · England
Sand mastic for sash & case windows in Westwood, Kent
We cover Westwood for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly.
- Open joints round the window box
- Window mastic to renew ahead of painting
- Old sand mastic that has cracked, crumbled or fallen out
How we handle sand mastic in Westwood
Old sand mastic cracks, crumbles and falls out over time, leaving gaps round the window. Renewing it closes the gap so the surround looks right again. If you have tired mastic found when preparing windows for paint and cracked mastic round a front door frame, we can help.
Around Westwood, conservatories, garden rooms and patio doors are often part of the house. Those joints need the same attention as the main windows.
We stand behind the work with a one-year guarantee, so you’re covered after we have gone.
- Place
- Westwood (CT9, CT10)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What we can’t put right
A few problems are outside what sealant work can do:
- Planning or listed building consent (your local planning authority decides)
- Sash cords, weights and draught-proofing of the sashes
- Damaged stone surrounds
If you’re not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer.
Where we work in Westwood
- Timber door frames
- Brick reveals
- Stone surrounds
- Period & listed homes
- Sash and case windows
- Tenement windows
Common problems we fix in Westwood
Shallow joints are a common cause. Mastic that’s too thin cracks and drops out, which is why we pack deep voids first and get the depth right.
Keep an eye out for any of the following:
- Failed mastic on an exposed elevation
- Window mastic to renew ahead of painting
- Cement or filler used on old window joints that has cracked
- Gaps where the frame meets the masonry
For landlords with property near Margate station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
What your quote should include
- Whether the sealant suits the joint
- Whether VAT is included
- Whether all the old sealant comes out first
- How hidden problems are handled
How it works
You don’t need to clear the whole room or building before we come, only the area right around the joints. We protect the rest, and the work takes a few hours per window, depending on the condition of the joints for a typical job. A visit to Westwood is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- 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.
How to prepare
- Mention any parking rules near the property
- Let us know about earlier repairs to the joints
- Mention any leaks or damp you’ve noticed
Get a quote
Asking for a quote is easy: let us know what needs doing and where. Photos by email help us understand the job.
Read more
Other services in Westwood
Westwood homes and the weather
Westwood is within about 2 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. Historic houses like Quex Park (about 2.9 miles west) are a reminder that the area around Westwood has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Managing a site like St Gregory's Catholic Primary School? Then its window and door frames need their mastic kept sound, just like a home’s. Homes close to Parish Church of St John the Baptist include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Westwood is about 1 mile south of Margate, in Kent. For sand mastic in and around Westwood, it’s easy to get a quote: please call 0345 464 0079 or email us. We are based in Crawley and cover Kent, Westwood included. We cover 922 towns and villages across Kent, from the larger towns to small villages. For nearby work, see our Chelmsford page (46 miles or so).
We work across CT9 and CT10 for sand mastic and the streets around it. Streets in the area include Leo Road, Nash Road and Luna Road. You will find Westwood on the A254, which makes it straightforward to reach with everything needed for sand mastic. If you are just outside Westwood, we cover Flete (1 mile west), Haine (1 mile south), Margate (1 mile north), Newington (1 mile south) and Garlinge (2 miles north-west). Larger places within reach include Canterbury (15 miles south-west), Whitstable (15 miles west), Deal (10 miles south), Herne Bay (11 miles west), Walmer (11 miles south) and Wincheap (15 miles south-west).
What’s near Westwood
Locally, jobs take us to homes and businesses close to Hartsdown Academy and The Orb pub, among other places. The closest station to Westwood is Margate station, roughly 1.4 miles north-west. Well-known places in the area include Public Library & Museum (Camborne) (1.4 miles north) and Queen Elizabeth the Queen Mother Hospital (0.7 miles north). For a walk, there’s Sandwich and Pegwell Bay.
Different surfaces, different methods
Tenement and terrace windows
Upper-floor windows need access planning. Tell us the height and we’ll confirm what’s needed.
Brick reveals
Sand mastic is also used where timber frames meet brick. It suits older brickwork.
Can I do it myself?
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 does not work out, we can still put it right.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
What affects the cost of sand mastic
We don’t publish a price list, because no two jobs are the same. The quote depends on:
- The size of the job
- Any mould that needs treating
- How easy the joints are to reach
- The number of rooms or windows
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You will know the price before we begin.
Asking for a quote
To help us quote quickly, let us know:
- Any access issues, like height or stairs
- The rough size of the job
- If someone has resealed it before
- If it’s domestic, commercial or a hotel
To get a quote, ring 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 we start.
Your questions about sand mastic in Westwood
Can you help a landlord with a rental near Margate station?
Yes, we work for landlords and agents. You can phone 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before we start.
Is sand mastic in a coastal place like Westwood any different?
Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. Walls facing the sea are generally the first to need attention.
Is it messy?
No. We work neatly, protect the area around the joints and tidy 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.
Where do you work from?
Mr Mastic is based in Crawley. Our applicators cover Westwood, along with the rest of our area.
Can I choose the sealant colour?
Most of the time, yes. We will tell you which colours the right product comes in and agree one before we start.
Can I add another job to the visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
What is sand mastic?
A traditional pointing material made from sand and a linseed-oil-based binder for the joint between timber frames and masonry.
Why it’s worth doing now in Westwood
Filling over old, loose mastic doesn’t last. We remove the loose material first so the new work lasts. In an older home around Westwood, damp from a failed joint can get into timber and plaster, and that’s a much bigger job than renewing the sealant.
The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts, so you know where you stand.
Why Westwood customers choose us
- Trusted Arbo and Everbuild sealants
- Fully insured
- A 12-month guarantee on all work
- Approved under the ARBOMaster scheme
Read our cost guide and our reviews.