Hampshire · England
Sand mastic for sash & case windows in Crow, Hampshire
Specialist sand mastic for Crow: careful preparation, the right product and tidy work. Call for a quick quote.
- Wind and rain getting in round a sash window
- Gaps round a timber door in stone or brick
- Mastic that needs renewing before redecorating
About our sand mastic in Crow
Sand mastic suits most period window surrounds. On modern frames we’d normally use a flexible sealant and we will explain which is best for yours. We work on sash and case windows, tenement windows and brick reveals, and the jobs we see most are window mastic to renew ahead of painting and weathered mastic on the most exposed windows.
Outdoor sealant needs dry, clean surfaces, so work on frames around Crow is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
Big or small, it’s backed by our 12-month guarantee.
- Place
- Crow (BH24)
- Wider area
- Hampshire
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Should I try it myself first?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
What we’re called out for in Crow
Timber frames move with the seasons. The movement cracks the mastic over time.
These are the problems we are asked about most:
- Mastic round period door frames that has failed
- Old sand mastic that has cracked, crumbled or fallen out
- Silicone on a period window that looks wrong
- Gaps where the frame meets the masonry
Managing a site like Ringwood Junior School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Comparing quotes
- What guarantee comes with the work
- How long to leave it before use
- What the quote includes, VAT included or not
- Whether you can choose the colour
What sealant work can’t fix
Sealant isn’t the answer to every problem, and we’ll tell you before any work starts. Sealant won’t put right:
- Broken panes
- Decayed frames that need repair
- Planning or listed building consent (your local planning authority decides)
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly before booking.
Where we work in Crow
- Timber door frames
- Sash and case windows
- Brick reveals
- Tenement windows
- Period & listed homes
- Stone surrounds
What we do, step by step
There is not much for you to do on the day. Point us to the joints and we’ll get on with it. The work itself takes a few hours per window, depending on the condition of the joints from start to finish. For a village or hamlet like Crow, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- Each surround is checked first.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic is not too thick.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Getting ready for the visit
- For indoor joints, keep the area dry beforehand if you can
- Tell us about any water getting in
- Mention any sign-in or site rules at work premises
Get a quote
We quote each job on its own, so start by telling us what you need. Simply ring 0345 464 0079 or send us an email and describe the job.
Advice
Other services in Crow
FAQs for Crow
Do you cover Crow for sand mastic?
Yes. We work across London and the South East, and Crow is part of that. You can call 0345 464 0079 or send us an email and tell us what needs doing.
Is Crow within the area you cover?
Yes, Crow is covered. 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 to suit the site.
Is it OK to seal over old sealant?
No. New silicone will not bond to old silicone, and it traps any mould or water underneath. It all has to come out first.
Will you leave a mess?
Tidy work is part of the job. We protect what’s around the joints, and the area is left clean when we finish.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. If you can, email a few pictures.
Should I use sand mastic or silicone?
Sand mastic usually suits period timber windows best. Modern frames normally suit a flexible sealant.
What’s sand mastic made of?
It’s the traditional filler for the joint round timber windows and doors. It’s made with sand and a linseed-oil-based binder.
Surface by surface
Timber door frames
Doors face weather and wear, so their mastic can fail sooner. We rake it out and renew it.
Brick reveals
Loose mastic comes out and deep gaps are packed before the new mastic goes in.
Why act early in Crow
Before painting the windows, it pays to renew the mastic. Paint over cracked mastic won’t stop the gaps, and the new mastic is traditionally left unpainted. Where a wall is exposed, as many are in small places like Crow, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please phone 0345 464 0079 or drop us an email.
What you get with us
- Anti-fungal silicone where joints get wet
- Arbo and Everbuild products
- An ARBOMaster approved applicator
- 20+ years of sealant experience
How to look after the new joints
Good habits help new joints last longer. Our tips:
- Clear gutters so water does not pour onto the windows
- Find out about consent before window work on a listed home
- Don’t run silicone over sand mastic
- Ask a joiner to look at soft timber first
Make sure water drains away from the window surround. Water sitting against the mastic shortens its life.
Sound mastic protects the frame. Failed mastic lets water reach the timber, which can lead to rot.
Frames and glazing around Crow
Historic houses like Avon Tyrrell House (about 2.4 miles south-east) are a reminder that the area around Crow has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Avon Tyrrell House, about 2.4 miles south-east, is one of the historic houses in the wider area around Crow, and older homes nearby need a sealant that suits their walls.
Crow is in Hampshire. Homes, rented property, offices and hotels in Crow is covered for sand mastic. Every job comes with our one-year guarantee. Crow is one of 683 towns and villages in Hampshire we cover. We also work in Southampton, about 17 miles from Crow.
All of BH24 is within our area for sand mastic, from the main roads to the quietest streets. You’ll find streets such as Barrack Lane, Wood End Road and Crow Lane, and we cover them all. We also cover the places around Crow: Upper Kingston (1 mile west), Hightown (1 mile north), Bagnum (1 mile south), Ringwood (1 mile north-west) and Poulner (1 mile north). We also work in nearby towns such as Totton (13 miles north-east), Lymington (11 miles south-east), New Milton (7 miles south-east), Barton on Sea (8 miles south-east), Dibden Purlieu (15 miles east) and Marchwood (14 miles east).
Local landmarks in Crow
We work in homes and buildings around Ringwood School and The Elm Tree Inn and the streets around them. A little further out are St Leonard's Hospital (4.3 miles west). Not far away are Blashford Lakes and Linbrook Lake.