Hampshire · England
Sand mastic for sash & case windows in Froyle, Hampshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Froyle and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Wind and rain getting in round a sash window
- Cement or filler used on old window joints that has cracked
- Mastic round period door frames that has failed
How we handle sand mastic in Froyle
Sand mastic suits most period window surrounds. Newer frames normally get a flexible sealant instead and we’ll explain which is best for yours. Typical jobs include tired mastic found when preparing windows for paint and modern sealant on a period surround, across stone surrounds, period & listed homes and tenement windows.
Somewhere as small as Froyle, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
Whatever the size of the job, it’s backed by our 12-month guarantee.

- Place
- Froyle (GU34)
- Wider area
- Hampshire
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Quotes for sand mastic in Froyle
For a quick quote, just ask. What matters most is:
- Whether there’s mould to deal with
- The number of rooms or windows
- Which sealant suits the joint
- Whether the work is at height
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
What we need to know
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- The problem you’ve noticed
- The type of property
- Pictures of the joints, sent by email
- The address or postcode of the job
We do not publish a price list. Instead, we give you a clear price for your job. To arrange one, call 0345 464 0079 or drop us an email.
Questions from Froyle
Can you do sand mastic in Froyle?
Yes. Our work covers London and the South East, and Froyle is part of that. Just ring 0345 464 0079 or email us with a few details of the job, and we’ll send you a clear quote.
Can you help a landlord with a rental near Bentley (Hampshire) station?
Yes, we work for landlords and letting agents. You can ring 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Are you insured?
Yes. We’re fully insured, and we can confirm the details when we quote.
Do I need permission for sand mastic on a listed building?
Checking first is sensible. Ask your local planning authority whether consent is needed for work on a listed home or in a conservation area.
Can you seal over the old sealant?
No. The old sealant always comes out first, so the new sealant bonds properly.
What exactly is sand mastic?
A traditional pointing material made from sand and a linseed-oil-based binder for the joint between timber frames and masonry.
Can you do several jobs on one visit?
Yes. Tell us about everything you’d like done and you’ll get one quote.
Where are you based?
We work from Crawley. Our applicators cover Froyle.
Keeping the joints in good condition
How long the joints last depends on use and care. We suggest:
- Keep modern sealant off the mastic
- Inspect the joints round the windows every year or so
- Take care around the mastic when scraping paint
- Have rotten timber repaired before new mastic goes in
Avoid sealing over the mastic with silicone. If you see a crack, ask us to take a look rather than patching it.
Good mastic helps keep the frame dry. Once it fails, water can sit against the timber and timber that stays wet can rot.
Work for landlords, hotels 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 one-year guarantee.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
Why act early in Froyle
Silicone might seem the quicker option, but it can look wrong on a period surround. Sand mastic is the traditional material and blends with the stone or brick. Where a wall is exposed, as many are in small places like Froyle, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re unsure, ring 0345 464 0079 or send us an email for an honest opinion and a quote.
Why book with us
- 12-month guarantee on every job
- Sanitary silicone with an anti-fungal additive in wet areas
- ARBOMaster approved applicator
- Full insurance on every job
Take a look at our cost guide or what customers say.
Do you need sand mastic in Froyle?
Most of it is simply age. Sand mastic is a maintenance item like any pointing, depending on exposure and upkeep.
Look out for these signs:
- Silicone on a period window that looks wrong
- Tired mastic found when preparing windows for paint
- Mastic worn away on windows facing the weather
- Gaps between timber frames and stone or brick
If you let a flat or house near Bentley (Hampshire) station, any sash windows need sound mastic to keep draughts and rain out.
Comparing quotes
- Is the old sealant removed completely?
- How the joint is cleaned and prepared
- How long to leave it before use
- Who turns up on the day
Windows and doors in Froyle
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.
For an older house near a landmark such as Church of St Mary of the Assumption, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Froyle is about 4 miles north-east of Alton, in Hampshire. Our applicators cover sand mastic for homes and businesses in Froyle and nearby. Our Hampshire coverage runs to 683 places, and Froyle is one of them. You can also see our page for Reading, roughly 18 miles from Froyle.
All of GU34 is covered for sand mastic. Streets in the area include Park Lane, Westburn Fields and Barnfield Close, and we cover them all. Close by, we work in Lower Froyle (1 mile north-east), Upper Froyle (1 mile south-west), Neatham (2 miles south-west), Holybourne (2 miles south-west) and Wyck (2 miles south). Larger places within reach include Basingstoke (10 miles north-west), Farnborough (10 miles north-east), Fleet (7 miles north-east), Aldershot (8 miles north-east), Alton (4 miles south-west) and Petersfield (13 miles south).
Landmarks near Froyle
In Froyle, that means homes and buildings near Hen And Chicken Public House and the streets around them. The nearest railway station is Bentley (Hampshire) station, roughly 2.1 miles east. Nearby you’ll also find Alton Community Hospital (4.5 miles south-west) and Barley Pound (3 miles north-east). Green spaces nearby include Holybourne Hill.
When it is not the sealant
Some problems need a builder, plumber or other trade rather than us:
- Sash cords, weights and draught-proofing of the sashes
- Timber that has rotted
- Cracked or broken glass
If you are not sure, just call 0345 464 0079 or send us an email and we’ll give you a straight answer before booking.
What we seal
- Stone surrounds
- Sash and case windows
- Timber door frames
- Tenement windows
- Period & listed homes
- Brick reveals
Also near Froyle
Other services in Froyle
How it works
Most of a good job is in the preparation, so that is where we spend the time. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours for a single window, longer for several. For a village or hamlet like Froyle, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- 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.
Before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us about any previous sealing or DIY attempts
- Mention any parking rules near the property
Ask for a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
