Hampshire · England
Sand mastic for sash & case windows in Curbridge, Hampshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Curbridge, with a one-year guarantee on every job. Ask us for a quote.
- Open joints round the window box
- Crumbling sand mastic round a window
- Mastic round period door frames that has failed
About our sand mastic in Curbridge
Sand mastic doesn’t last for ever and gaps open up round the frame. Renewing it closes the gap and tidies the surround. We work on sash and case windows, stone surrounds and timber door frames, and people most often call us about crumbling sand mastic round a window and tired mastic found when preparing windows for paint.
Houses in smaller places like Curbridge can stand more in the open than those in a built-up town. That’s hard on the mastic around frames and sills.
We guarantee the work for a year. If something is not right with it in that time, tell us and we will put it right.

- Location
- Curbridge (SO30)
- Wider area
- Hampshire
- Cover
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What affects the quote in Curbridge
You will get a clear quote before work begins. It’s based on:
- The number and length of the joints
- Working hours on commercial sites
- Which sealant suits the joint
- Whether there’s mould to deal with
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
What to tell us for a quote
When you call or email, these details help:
- If someone has resealed it before
- Access, such as stairs, a lift or height
- A few pictures by email, if you can
- Where the property is
For a quote, call 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You will have a clear quote before any work starts.
Places near Curbridge
More services for Curbridge
What we do, step by step
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a few hours per window, depending on the condition of the joints. For a job in Curbridge, we agree the time, the access and parking before the day. 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.
- We remove the old, loose mastic.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Mention any sign-in or site rules at work premises
- Mention any leaks or damp you’ve noticed
Get a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand.
Read more
When something else is needed
Before you book, it’s worth knowing the limits too:
- Damaged stone surrounds
- Cracked or broken glass
- Sashes that rattle, stick or won’t open
If you’re not sure, just phone 0345 464 0079 or email us and we will give you a straight answer.
Where we work in Curbridge
- Period & listed homes
- Timber door frames
- Brick reveals
- Stone surrounds
- Tenement windows
- Sash and case windows
Questions from Curbridge
I let a flat near Botley station. Can you help?
Yes, rental work is part of what we do. You can call 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before work begins.
Do you cover Curbridge for sand mastic?
Yes, Curbridge is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or email us and tell us what needs doing.
What information do you need?
The location, the problem and the rough size of the job. Photos by email help too.
Can I add another job to the visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
Will it make a mess?
No. We work neatly, protect the area around the joints and tidy up afterwards.
Can I do it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status and we are fully insured too.
What sealant do you use?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Different surfaces, different methods
Period and listed homes
A traditional finish suits a period property, and sand mastic is one of them.
Tenement and terrace windows
Windows above ground floor need the right access. Tell us the height and we’ll confirm what’s needed.
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Leave it or put it right?
Replacing sash windows is a big decision for a period home and on a listed home, consent may be needed. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. In an older home around Curbridge, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
A failed joint rarely gets cheaper to fix by waiting. If you are not sure whether it needs doing, phone 0345 464 0079 or send us an email and we will give you an honest view and a quote.
Why us?
- Neat joints and a tidy finish
- ARBOMaster approved applicator
- Anti-fungal silicone where joints get wet
- Rated 4.9 stars on Google
Frames and glazing around Curbridge
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Around Curbridge, as everywhere, sand mastic is only as good as the preparation behind it. If you let a flat or house near Botley station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Curbridge is about 3 miles east of Hedge End, in Hampshire. If you need sand mastic in Curbridge, it’s easy to get a quote: please phone 0345 464 0079 or email us. We cover Hampshire from our Crawley base. Curbridge is one of 683 towns and villages in Hampshire we cover for sand mastic. Southampton is on our list too, around 7 miles away.
Our applicators cover all of the SO30 postcode area for sand mastic and the streets around it. Streets in the area include Tanners Brook Close, Loddon Close and Oakhanger Close, all of which we cover. Neighbouring places we cover for sand mastic include Curdridge (1 mile north), Botley (2 miles north-west), Boorley Green (3 miles north-west), Waltham Chase (3 miles north-east) and Durley (3 miles north). We also work in nearby towns such as Winchester (11 miles north), Gosport (8 miles south-east), Havant (12 miles east), Eastleigh (6 miles north-west), Fareham (4 miles south-east) and Horndean (10 miles east).
What’s near Curbridge
In Curbridge, that means homes and buildings near Horse and Jockey pub and the streets around them. For rail, the closest station is Botley station, roughly 1.2 miles north-west. Other landmarks nearby include St Andrew's Castle (4.6 miles south-west) and Knowle Hospital (2.3 miles south-east). Green spaces nearby include Swanwick Lakes.
Keeping the joints in good condition
After the cure time, these simple habits help:
- Keep modern sealant off the mastic
- Make sure water runs off the sill
- Inspect the joints round the windows every year or so
- Sort the mastic before the decorators arrive
Avoid sealing over the mastic with silicone. If anything cracks, get it looked at rather than patching it.
Once mastic starts to crumble, rain gets in. That water can reach the timber frame and the wall so early renewal protects both.
