Surrey · England
Sand mastic for sash & case windows in Thursley, Surrey
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Thursley, backed by a one-year guarantee. Call for a quick quote.
- Patchy fillers round a sash window
- Silicone on a period window that looks wrong
- Crumbling sand mastic round a window
Sand mastic in Thursley
Our applicators renew the sand mastic around sash and case windows and doors set in stone or brick. Out comes the old, loose mastic, the joint is prepared and new mastic is shaped by hand. Typical jobs include open joints round the window box and old sand mastic that has cracked, crumbled or fallen out, across sash and case windows, tenement windows and timber door frames.
In a village or hamlet like Thursley, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
All our work is covered by our 12-month guarantee.
- Place
- Thursley (GU8)
- Wider area
- Surrey
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Different surfaces, different methods
Period and listed homes
Period homes look their best with traditional materials, and sand mastic is one of them.
Tenement and terrace windows
Tenements and terraces often have many sash windows with ageing mastic. We can do one window or several.
Windows and doors in Thursley
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Rented homes near Witley station change hands often, and any sash windows need sound mastic to keep draughts and rain out.
Thursley is about 5 miles south-east of Farnham, in Surrey. Across the GU8 area, we can carry out sand mastic at your property. Our area takes in 395 places across Surrey. Crawley is on our list too, about 23 miles from Thursley.
All of GU8 is within our area for sand mastic, from the main roads to the quietest streets. If you need sand mastic at a property on The Street, The Lane and Dyehouse Road or anywhere close by, we can help. Close by, we work in Pitch Place (1 mile west), Rushmoor (2 miles west), Tilford Common (2 miles north-west), Green Cross (2 miles south-west) and Elstead (2 miles north). Larger places within reach include Guildford (9 miles north-east), Woking (13 miles north-east), Camberley (13 miles north), Farnham (5 miles north-west), Frimley (11 miles north) and Haslemere (4 miles south).
Around Thursley
Locally, jobs take us to homes and businesses close to Three Horseshoes pub. Thursley’s nearest station is Witley station, roughly 3.1 miles east. A little further out are Milford Hospital (4 miles east). The countryside around Thursley includes Upper Lake and Gibbet Hill.
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 12-month guarantee.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will give you a quote.
Also near Thursley
Other services in Thursley
What we do, step by step
Before we leave, we go over the finished joints with you and tell you how long to leave it. The work normally takes anything from a few hours to a full day, depending on how many windows, depending on the amount of work. Somewhere like Thursley needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First, we look at the surrounds with you and agree what needs doing.
- Old, loose mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The mastic is finished to sit tidily against the stone or brick.
How to prepare
- Keep children and pets away from the work area
- Mention if the joints have been sealed before
- Let us know if you’ve seen damp or leaks
Get a quote
We quote each job on its own. Simply call 0345 464 0079 or email us and describe the job and send photos if you have them.
Related advice
What we’re called out for in Thursley
Sand mastic slowly weathers. It dries out, cracks and loses its grip on the stone or timber.
Common reasons people contact us are:
- Patchy fillers round a sash window
- Draughty sash windows at the surround
- Crumbling sand mastic round a window
- Modern sealant on a period surround
In the older streets around Church of St Michael and All Angels, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Before you book anyone
- Whether the sealant suits the joint
- How long to leave it before use
- Whether they seal over old material or remove it
- Whether they’re fully insured
Leave it or put it right?
Cement-based fillers and modern sealants do not always suit a period surround. Sand mastic matches what was there, which can matter on listed and conservation-area homes. Around Thursley, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
The cost depends on the amount of work, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before we start, so you know where you stand.
Why book with us
- We are fully insured
- 180+ five-star Google reviews
- Anti-fungal silicone where joints get wet
- Neat joints and a tidy finish
Read our cost guide or what customers say.
What affects the quote in Thursley
For a quick quote, just ask. What matters most is:
- The number of rooms or windows
- The old material and how stubborn it is
- Any working-time requirements on site
- The number and length of the joints
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Call for a quick quote and we’ll go through it with you.
Asking for a quote
To make quoting easier, please include:
- What the problem is, such as mould, gaps, leaks or cracking
- Photos by email, if that’s easy
- The address or postcode of the job
- Whether it’s a home or a business
If you’re in Thursley and need sand mastic, ring 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before we start.
Keeping the joints in good condition
A little care helps the new joints last. Our advice:
- Clear gutters so water does not pour onto the windows
- Find out about consent before window work on a listed home
- Ask a joiner to look at soft timber first
- Sort the mastic before the decorators arrive
Keep gutters and sills clear so water runs away from the 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.
Thursley: your questions answered
Do you cover smaller places like Thursley?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you cover Thursley for sand mastic?
Yes. We work across London and the South East, and Thursley is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job, and we’ll send you a clear quote.
How long does the job take?
It depends on the size of the job, but most jobs take a few hours per window, depending on the condition of the joints. We will give you a better idea when we quote.
Are you an approved applicator?
Yes. We’re approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
Will there be a smell?
There can be a smell while the sealant cures, but it fades. Ventilation helps.
Can I add another job to the visit?
Yes. Just list everything you need.
Will it make a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
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. We use products from Arbo and Everbuild.