Kent · England
Sand mastic for sash & case windows in Westbere, Kent
We cover Westbere for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.
- Gaps round a timber door in stone or brick
- Old cement repairs round a window that have failed
- Mastic worn away on windows facing the weather
Sand mastic in Westbere, done properly
If your home is listed or in a conservation area, check with your local planning authority whether consent is needed for work to windows. Like-for-like sand mastic is often the preferred finish. We work on tenement windows, brick reveals and period & listed homes, and common reasons people get in touch are mastic worn away on windows facing the weather and draughty sash windows at the surround.
Somewhere as small as Westbere, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
Every job comes with a one-year guarantee.
- Place
- Westbere (CT2)
- Region
- Kent
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Should I try it myself first?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Common questions in Westbere
Is Westbere in your area for sand mastic?
Yes, Westbere is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or email us with a few details of the job.
Is Westbere within the area you cover?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you do commercial work?
Yes, regularly. Larger jobs can be planned room by room or area by area.
Can you do several jobs on one visit?
Yes. Tell us about everything you’d like done and you will get one quote.
Do the sealants smell?
That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Is it possible to take out silicone and use sand mastic instead?
Yes, it’s a common request. The old silicone has to come out completely so the mastic beds in well.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status, and we are fully insured.
How long will you be here?
That depends on how much there is to do, but as a guide it takes anything from a few hours to a full day, depending on how many windows. We’ll tell you when we quote.
What affects the quote in Westbere
Your quote is based on your job. We take into account:
- Whether the work is at height
- The amount of work
- Whether old sealant or filler has to be cut out
- Any working-time requirements on site
We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please ring 0345 464 0079 or drop us an email and we’ll talk you through it.
What to tell us for a quote
To help us quote quickly, let us know:
- Pictures of the joints, sent by email
- Where the property is
- The problem you’ve noticed
- If it’s domestic, commercial or a hotel
Every job is quoted individually. Just phone 0345 464 0079 or email us with the details, and pictures are welcome.
How the visit works
At the end, we look at the finished work together and tell you how long to leave it. The visit itself usually takes a few hours for a single window, longer for several, depending on how much there is to do. For a village or hamlet like Westbere, 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 start by checking each surround and agreeing the joints to renew.
- We rake out the old mastic and clean the joint.
- Large voids are packed out first, so the mastic isn’t too thick.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- We dress the surface so it sits neatly against the masonry.
Preparing for the visit
- Mention if the joints have been sealed before
- Tell us about access, such as stairs, a lift or high-level joints
- For indoor joints, keep the area dry beforehand if you can
Ask for a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
Advice
Landlords, agents and businesses in Westbere
Letting agents often deal with us directly. Tell us the address, the job and how access works.
If you manage several properties in or around Westbere, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
What happens if it’s left?
Cement-based fillers and modern sealants do not always suit a period surround. Sand mastic is the like-for-like choice and that can be important for listed homes. Older cottages and farmhouses around Westbere can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
What you pay reflects the work, not a rough estimate. That is why we ask about the job first.
Why Westbere customers choose us
- Rated 4.9 stars on Google
- Anti-fungal sanitary silicone in wet areas
- Tidy, careful work
- Quality sealants from Arbo and Everbuild
Take a look at our cost guide or customer reviews.
What sand mastic looks like in Westbere
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Managing a site like Spires Academy? Then larger buildings have plenty of frames, and the mastic around each one ages. In the older streets around Church of All Saints, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Westbere is about 3 miles north-east of Canterbury, in Kent. Homes, rented property, offices and hotels in Westbere can book us for sand mastic, old or new, large or small. The work is guaranteed for a year. Our Kent coverage runs to 922 places, and Westbere is one of them. Chelmsford is on our list too, about 41 miles from Westbere.
Postcode districts we cover here for sand mastic: CT2. You will find streets such as Island Road, Pennington Close and Bushy Hill Road, all of which we cover. Neighbouring places we cover for sand mastic include Hersden (1 mile north-east), Sturry (1 mile west), Calcott (2 miles north-west), Broad Oak (2 miles west) and Stodmarsh (2 miles east). Further out, we also cover Canterbury (3 miles south-west), Margate (11 miles north-east), Dover (14 miles south-east), Ramsgate (12 miles east), Broadstairs (13 miles east) and Whitstable (6 miles north-west).
Around Westbere
Typical jobs here are in homes near Hersden Village Primary School, Ye Olde Yew Tree Inn and Frank Montgomery School and the streets around them. Westbere’s nearest station is Sturry station, about 1.2 miles south-west. Other landmarks nearby include Canterbury Castle (3.9 miles south-west) and Canterbury Roman Museum (3.5 miles south-west). Open spaces near Westbere include West Blean and Thornden Woods.
When to call us in Westbere
Scraping and sanding before painting can loosen old mastic. It’s often found when windows are being prepared for paint.
These are the problems we’re asked about most:
- Draughts and rain around sash boxes
- Window mastic to renew ahead of painting
- Old cement repairs round a window that have failed
- Cracked mastic round a front door frame
For landlords with property near Sturry station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Questions to ask before you book
- How the joint is cleaned and prepared
- How the colour is chosen
- What happens if they find a problem under the old sealant
- Is VAT in the price?
Different surfaces, different methods
Timber door frames
Door frames get knocked and soaked, so their mastic can fail sooner. It’s renewed by hand.
Stone surrounds
The stone is treated with care while raking out the old mastic.