Hampshire · England
Sand mastic for sash & case windows in Criddlestyle, Hampshire
Sand mastic across Criddlestyle and nearby, with old sealant always removed completely.
- Weathered mastic on the most exposed windows
- Cement or filler used on old window joints that has cracked
- Mastic round period door frames that has failed
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Sand mastic in Criddlestyle
For a listed home or one in a conservation area, ask your local planning authority whether consent is needed for work to windows. Like-for-like sand mastic is often the preferred finish. We are often asked to deal with cement or filler used on old window joints that has cracked and gaps round a timber door in stone or brick, across brick reveals, sash and case windows and period & listed homes.
Around Criddlestyle, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
We stand behind the work with a 12-month guarantee, so you are not left on your own once the job is done.
- Place
- Criddlestyle (SP6)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Do you need sand mastic in Criddlestyle?
Decorating can disturb tired mastic. It’s often found when windows are being prepared for paint.
The most common problems we see are:
- Weathered mastic on the most exposed windows
- Mastic round period door frames that has failed
- Cement or filler used on old window joints that has cracked
- Open joints round the window box
In the older streets around St Giles, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Comparing quotes
- What product goes in the joint
- Who turns up on the day
- How the joint is cleaned and prepared
- Whether VAT is included
What we cannot put right
In fairness, there are a few things sealant will not fix:
- Sashes that need overhauling
- Crumbling stone or brickwork round the window
- Rotten sashes, sills or window boxes (a joiner’s job)
If you are not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer.
Surfaces we seal
- Sash and case windows
- Stone surrounds
- Brick reveals
- Tenement windows
- Timber door frames
- Period & listed homes
Sand mastic in Criddlestyle: local notes
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Breamore House (about 3 miles north) are a reminder that the area around Criddlestyle 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’s traditional sand mastic.
Managing a site like The Burgate School and Sixth Form? Then the mastic around its windows and doors needs looking after like any other building’s.
Criddlestyle is in Hampshire. Wherever you are in the SP6 postcode area, we can carry out sand mastic at your property. Our Hampshire coverage runs to 683 places, and Criddlestyle is one of them. There’s also a page for Southampton, roughly 16 miles from Criddlestyle.
Every address in SP6 is within our area for sand mastic. Neighbouring places we cover for sand mastic include Sandy Balls (1 mile north-east), Stuckton (1 mile south), Horseport (1 mile west), Blissford (1 mile south-east) and Godshill (1 mile north-east). Within a short drive, we also cover Totton (12 miles east), Lymington (15 miles south-east), Romsey (13 miles east), New Milton (13 miles south), Ringwood (6 miles south) and Barton on Sea (14 miles south).
What’s near Criddlestyle
Locally, jobs take us to homes and businesses close to The George Inn and Fordingbridge Infant School, among other places. A little further out are Godshill Castle Hill (1.2 miles north) and Fordingbridge Doll Museum (0.8 miles west). Green spaces nearby include Blashford Lakes and Linbrook Lake.
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. We suggest:
- Have rotten timber repaired before new mastic goes in
- Clear gutters so water does not pour onto the windows
- Avoid heavy scraping on the mastic joint
- Do not run silicone over sand mastic
Make sure water drains away from the window surround. Water sitting against the mastic shortens its life.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger as more mastic falls out.
Questions from Criddlestyle
Is Criddlestyle within the area you cover?
Yes. Criddlestyle is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is Criddlestyle in your area for sand mastic?
Yes. Our work covers London and the South East, and Criddlestyle is part of that. Just call 0345 464 0079 or send us an email with a few details of the job.
Do the sealants smell?
Possibly a little. Any smell clears as the sealant cures.
Do I need to be at home?
It depends on the job. Inside work needs someone to give us access.
What should I tell you?
The location, the problem and the rough size of the job. Photos by email help too.
Is consent needed for window work on a listed home?
Check with your local planning authority. They decide whether consent is needed.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Do you offer different sealant colours?
We help you choose a colour that suits. The choice depends on the product the joint needs.
How it works
We work through the job in order: protect, prepare, seal, tidy. Typically it takes anything from a few hours to a full day, depending on how many windows, and the area is left clean. In a small place like Criddlestyle, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Before we arrive
- Mention any leaks or damp you’ve noticed
- Keep pets and children clear of the area while we work
- Let us know about parking restrictions
Ask for a quote
To get a quote, phone 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.
Read more
Why it’s worth doing now in Criddlestyle
Filling over old, loose mastic doesn’t last. We remove the loose material first so the new mastic stays put. Older cottages and farmhouses around Criddlestyle can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Why Criddlestyle clients choose us
- Anti-fungal silicone where joints get wet
- We never seal over old sealant
- We leave the area clean and tidy
- Full insurance on every job
Take a look at our cost guide or customer reviews.
More services for Criddlestyle
What the job involves on each surface
Brick reveals
Sand mastic is also used where timber frames meet brick. It suits older brickwork.
Period and listed homes
On a listed home or in a conservation area, the right material matters. Like-for-like sand mastic is generally favoured.