Hampshire · England
Sand mastic for sash & case windows in Godshill, Hampshire
Sand mastic across Godshill and nearby, with every bit of old sealant taken out first and a one-year guarantee.
- Window mastic to renew ahead of painting
- Failed mastic on an exposed elevation
- Draughty sash windows at the surround
Can I do it myself?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Sand mastic in Godshill, done properly
Burnt sand mastic is a traditional material that sits naturally against stone and brick. It suits period and listed homes, where modern sealant can look out of place. Common call-outs are for draughts and rain around sash boxes and a silicone bead on a sash window that spoils the look, on period & listed homes, tenement windows and timber door frames.
Somewhere as small as Godshill, 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.
A one-year guarantee comes with the work, just as it does everywhere we cover.

- Where
- Godshill (SP6)
- Wider area
- Hampshire
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Towns and villages near Godshill
More services for Godshill
Your questions about sand mastic in Godshill
Is sand mastic in Godshill guaranteed?
All our work, in Godshill and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Do you cover Godshill for sand mastic?
Yes. We work across London and the South East, and Godshill is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear quote.
What information do you need?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Where are you based?
Mr Mastic is based in Crawley. We cover Godshill and the rest of Hampshire, along with the rest of our area.
Will the old sealant be removed?
Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Can tenants book the work?
We’re happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
What sealant do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We explain the product when we quote.
Do I have to be there?
We need access to the joints, so we will agree that with you when we book. Indoors, that generally means someone at home.
What happens on the day
You do not need to clear the whole room or building before we come, only the area right around the joints. Everything nearby is protected, and the job takes a few hours per window, depending on the condition of the joints in most cases. Somewhere as small as Godshill, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check the window surrounds and agree which joints need renewing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic isn’t too thick.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The mastic is finished to sit tidily against the stone or brick.
Getting ready for the visit
- Keep pets and children clear of the area while we work
- For indoor joints, keep the area dry beforehand if you can
- Tell us if parking is tricky
Getting a quote
If you are in Godshill and need sand mastic, phone 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
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Looking after it afterwards
A little care helps the new joints last. We recommend:
- Take care around the mastic when scraping paint
- Sort the mastic before the decorators arrive
- Check the mastic when you check the paintwork
- Ask a joiner to look at soft timber first
Look at the mastic when you look over the windows. Small cracks are easier to deal with early.
Crumbling mastic lets rain into the joint. That water can reach the timber frame and the wall, so renewing it early is worth it.
Common problems we fix in Godshill
Age is the main cause. Even well-laid mastic needs renewing in time and how long it lasts depends on the weather it faces.
People generally contact us after spotting one of these:
- Tired mastic found when preparing windows for paint
- Gaps round a timber door in stone or brick
- A silicone bead on a sash window that spoils the look
- Draughts and rain around sash boxes
If you look after a building such as The Burgate School and Sixth Form, its window and door frames need their mastic kept sound, just like a home’s.
Comparing quotes
- What happens if they find a problem under the old sealant
- How much experience the applicator has
- What the cure time is
- How the colour is chosen
Why deal with it now?
A silicone bead can be quicker, but it can look wrong on a period surround. Sand mastic is the traditional material and blends with the stone or brick. In a small place like Godshill, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
Why us?
- Anti-fungal sanitary silicone in wet areas
- Domestic, commercial and hotel work
- An ARBOMaster approved applicator
- Over 20 years’ experience
Honest limits
In fairness, some problems need a different trade:
- Cracked or broken glass
- Rotten sashes, sills or window boxes (a joiner’s job)
- Whether work needs listed building consent
If you are not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer before booking.
Surfaces we seal
- Brick reveals
- Period & listed homes
- Tenement windows
- Sash and case windows
- Timber door frames
- Stone surrounds
Sand mastic in Godshill: local notes
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Breamore House (about 2.9 miles north-west) are a reminder that the area around Godshill has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
In the older streets around St Giles, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Godshill is in Hampshire. Across the SP6 area, we can carry out sand mastic at your property. Across Hampshire, we cover 683 places, and Godshill is one of them. There’s also a page for Southampton, about 16 miles away.
Every address in SP6 is within our area for sand mastic, from the main roads to the quietest streets. Sand mastic is available to properties on Purlieu Lane, Southampton Road and Roger Penny Way and the roads around them. Neighbouring places we cover for sand mastic include Sandy Balls (1 mile south-west), Criddlestyle (1 mile south-west), Blissford (1 mile south), Frogham (1 mile south) and Stuckton (1 mile south-west). Larger places within reach include Totton (11 miles east), Lymington (15 miles south-east), Romsey (12 miles east), New Milton (13 miles south), Ringwood (6 miles south) and Barton on Sea (14 miles south).
Near you in Godshill
In Godshill, that means homes and buildings near The Fighting Cocks pub and the streets around them. Other landmarks nearby include Godshill Castle Hill (0.9 miles north-west) and Fordingbridge Doll Museum (1.7 miles west). The countryside around Godshill includes Blashford Lakes.
What affects the cost of sand mastic
Your quote is based on your job. We look at:
- How many areas need sealing
- How much old sealant there is and how hard it is to remove
- Any working-time requirements on site
- The amount of work
We do not show prices on the website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
What to tell us for a quote
When you call or email, it’s useful to know:
- Photos by email, if that’s easy
- The type of property
- The address or postcode of the job
- How we’d reach the joints
Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we will explain what’s involved and give you a clear price.
