West Sussex · England
Sand mastic for sash & case windows in Bewbush, West Sussex
Sand mastic for Bewbush, 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
- Mastic round period door frames that has failed
What affects the cost of sand mastic
We quote each job individually. These are the things that affect it:
- The old material and how stubborn it is
- Whether the work is at height
- The product the joint needs
- The number of rooms or windows
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Helping us quote
Before you ask for a quote, have a think about:
- If someone has resealed it before
- Roughly how big the job is
- Where the job is, and your postcode
- The type of property
For a quote, call 0345 464 0079 or drop us an email with the location and a short description of the problem. We will send you a clear quote before any work starts.
How we handle sand mastic in Bewbush
Across Bewbush, we renew sand mastic around sash and case windows. Each joint is raked out, prepared and pointed by hand for a neat, traditional finish. We work on tenement windows, stone surrounds and sash and case windows, and common reasons people get in touch are tired mastic found when preparing windows for paint and mastic worn away on windows facing the weather.
Homes around Bewbush range from older properties to newer houses, and their windows range just as widely. Each frame material needs the right sealant against the right wall.
You’re covered for a year from the day we finish. If anything isn’t right with it, ring 0345 464 0079 or email us.
- Location
- Bewbush (RH11, RH12, RH10)
- Wider area
- West Sussex
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Also near Bewbush
Other services in Bewbush
For landlords and businesses
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Housing providers, facilities teams and property managers book us too in Bewbush and across West Sussex. Several sites can be quoted together, and we are fully insured.
Keeping the joints in good condition
Good habits help new joints last longer. Our tips:
- Plan mastic work ahead of painting
- Get any rot dealt with first
- Ask the planning authority about consent for listed or conservation-area homes
- Take care around the mastic when scraping paint
Keep gutters and sills clear so water runs away from the surround. Constant wetting wears the mastic faster.
Sound mastic protects the frame. Once it fails, water can sit against the timber and timber that stays wet can rot.
DIY sealant or a professional job?
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.
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, and the work is guaranteed for a year.
Why act early in Bewbush
Draughts round a sash window aren’t always the sashes. Gaps between the frame and the wall can be just as bad, and renewing the mastic closes them. In an older home around Bewbush, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
What you pay reflects the work, not a rough estimate. That’s why we ask a few questions first.
Why us?
- Anti-fungal sanitary silicone in wet areas
- Any old sealant cut out fully, not covered over
- 12-month guarantee on every job
- 180+ five-star Google reviews
Frames and glazing around Bewbush
Bewbush is part of Crawley, one of the post-war new towns. With many homes from the post-war decades, replacement windows and doors are common. The mastic around replacement frames ages too, and gaps at sills and frame heads are where water gets in. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you let a flat or house near Ifield station, older sash windows in a rental need their mastic kept sound to keep the weather out. For site and facilities teams at buildings such as The Bewbush Academy, the mastic around its windows and doors needs looking after like any other building’s.
Bewbush is about 1 mile west of Crawley, in West Sussex. We provide sand mastic to homes and businesses in Bewbush and the surrounding area, as part of our work across West Sussex. Our area takes in 371 places across West Sussex.
All of RH11, RH12 and RH10 is covered for sand mastic. We cover properties on Eden Road, Byrd Road and Booth Road. Other places close to Bewbush include Gossops Green (1 mile north-east), Ifield (1 mile north-east), Ifieldwood (2 miles north), Lambs Green (2 miles north-west) and Rusper (3 miles north-west). Within a short drive, we also cover Horsham (5 miles south-west), Haywards Heath (9 miles south-east), Burgess Hill (11 miles south), East Grinstead (9 miles east), Billingshurst (12 miles south-west) and Roffey (4 miles south-west).
Landmarks near Bewbush
Typical jobs here are in homes near Target Hill Park, The Windmill pub and St Wilfrid's Catholic School and the streets around them. The closest station to Bewbush is Ifield station, about 0.8 miles north. Nearby you’ll also find Crawley Museum (1.6 miles north-east) and County Mall (1.6 miles east). The countryside around Bewbush includes Tilgate Lake.
Your questions about sand mastic in Bewbush
Is it worth replacing old sealant in an older home in Bewbush?
If it hasn’t been replaced for some years, it’s generally worth it. Sealant doesn’t last for ever, and its life depends on use, cleaning and weather.
Is Bewbush within the area you cover?
Yes, Bewbush is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you work for landlords and businesses?
Yes. As well as homeowners, we work for landlords, agents, businesses and hotels in Bewbush.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status.
I rent my home. Can I book you?
Yes, though it’s best to check with your landlord first. Landlords are often happy for the work to be arranged.
What exactly is sand mastic?
It’s a mix of sand and a linseed-oil-based binder. It’s applied by hand and shaped to suit the surround.
Do you remove the old sealant?
Yes, every time. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.
What does sand mastic cost?
It depends on the job, so we quote each one individually. For a quick quote, phone 0345 464 0079 or send us an email and let us know what needs doing and where.
How the visit works
A visit follows a simple pattern: we check the joints, protect the area around them, carry out the job and clear up. It generally takes anything from a few hours to a full day, depending on how many windows. For a job in Bewbush, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- Each surround is checked first.
- The joint is raked out and cleaned.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Preparing for the visit
- Tell us if parking is tricky
- Clear the area around the work
- Tell us about any water getting in
Getting a quote
It all starts with a short chat. Describe the problem, the location and the size of the job. Whenever you’re ready, ring 0345 464 0079 or drop us an email.
Read more
When to call us in Bewbush
Shallow joints are a common cause. A thin layer does not hold well, which is why we pack deep voids first and get the depth right.
These are the problems we’re asked about most:
- Failed mastic on an exposed elevation
- Mastic dropping out of the joint
- Gaps between timber frames and stone or brick
- Cracked mastic round a front door frame
In the older streets around St Alban's, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Comparing quotes
- The length of the guarantee
- Whether you can choose the colour
- Whether all the old sealant comes out first
- What preparation is included