Surrey · England
Sand Mastic in Seale
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Seale, with a 12-month guarantee on every job. Ask us for a quote.
- A silicone bead on a sash window that spoils the look
- Wind and rain getting in round a sash window
- Failed mastic on an exposed elevation
Leave it or put it right?
If you’re redecorating, renew the mastic first. Paint over cracked mastic will not stop the gaps and traditional guidance is to leave the new mastic unpainted. Around Seale, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part.
Why Seale clients choose us
- Over 20 years’ experience
- Quality sealants from Arbo and Everbuild
- We leave the area clean and tidy
- Any old sealant cut out fully, not covered over
Take a look at our cost guide or our reviews.
How we handle sand mastic in Seale
Old sand mastic cracks, crumbles and falls out over time, leaving gaps round the window. We rake it out and renew it and tidies the surround. We’re often asked to deal with cracked mastic round a front door frame and mastic that needs renewing before redecorating, across sash and case windows, period & listed homes and brick reveals.
In a village or hamlet like Seale, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Location
- Seale (GU10)
- Region
- Surrey
- Cover
- A year, on every job
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
How the visit works
Before we leave, we go over the finished joints with you and explain the cure time. The visit itself normally takes a few hours per window, depending on the condition of the joints, depending on the amount of work. In a small place like Seale, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- Let us know about stairs, lifts or work at height
- Let us know about parking restrictions
Get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.
Related advice
For landlords and businesses
If you manage several properties in or around Seale, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and pictures by email help.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we are fully insured.
Should I try it myself first?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Sand mastic in Seale: local notes
With historic houses such as Wanborough Manor (about 2.4 miles east) nearby, there’s older building stock in the area around Seale as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Homes close to Church of St Laurence include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you let a flat or house near Ash station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Seale is about 3 miles south-east of Aldershot, in Surrey. Seale gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Our area takes in 395 places across Surrey, from the larger towns to small villages. For nearby work, see our Reading page (19 miles or so).
We cover every part of GU10 for sand mastic. You’ll find streets such as Elstead Road, School Hill and Wood Lane. We also cover Sandy Cross (1 mile west), Tongham (1 mile north-west), The Sands (1 mile south-west), Ash Green (1 mile north) and Ash (2 miles north). Larger places within reach include Guildford (6 miles east), Woking (9 miles north-east), Camberley (8 miles north), Farnham (4 miles west), Frimley (6 miles north) and Haslemere (9 miles south).
Near you in Seale
Locally, jobs take us to homes and businesses close to The Connaught School, Ash Manor School and The White Hart pub. The closest station to Seale is Ash station, roughly 1.9 miles north. A little further out are Guildford Hospital (4.8 miles east) and Farnham Castle (3.7 miles west). Green spaces nearby include Runfold Wood and Hog's Back.
Common problems we fix in Seale
Rain on the window surround works into any crack and loosens it further. Exposed elevations generally fail first.
Any of these means the joints need attention:
- Mastic worn away on windows facing the weather
- Open joints round the window box
- Old cement repairs round a window that have failed
- Mastic that needs renewing before redecorating
Schools such as St Paul's CofE Infant School & Nursery are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
What your quote should include
- Whether you can choose the colour
- The length of the guarantee
- What happens if they find a problem under the old sealant
- Whether VAT is included
Your questions about sand mastic in Seale
Can you help a landlord with a rental near Ash station?
Yes, we work for landlords and agents. Just phone 0345 464 0079 or send us an email and tell us about the property, and we’ll send you a clear quote.
Is Seale within the area you cover?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you replace silicone on a period window with sand mastic?
Yes, it’s a common request. The old silicone has to come out completely so the mastic beds in well.
Do you take out the old sealant first?
Yes, every time. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us.
What exactly is sand mastic?
It’s the traditional filler for the joint round timber windows and doors. It’s made with sand and a linseed-oil-based binder.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done and you’ll get one quote.
Is sand mastic better than silicone for my windows?
We will talk it through with you. Period homes often look best with sand mastic and newer frames suit modern sealant.
More services for Seale
What we cannot put right
Sealant isn’t the answer to every problem, and we’ll tell you before any work starts. Sealant will not put right:
- Crumbling stone or brickwork round the window
- Broken panes
- Rotten sashes, sills or window boxes (a joiner’s job)
Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly before booking.
Surfaces we seal
- Timber door frames
- Stone surrounds
- Period & listed homes
- Tenement windows
- Sash and case windows
- Brick reveals
What affects the quote in Seale
Every job gets its own quote. This is what makes a difference:
- The number and length of the joints
- The type of sealant required
- Whether there’s mould to deal with
- Working hours on commercial sites
Leaving a failed joint normally makes the job bigger, not smaller. If you’re unsure, phone 0345 464 0079 or send us an email and we will give you an honest view and a quote.
What to tell us for a quote
When you contact us, it’s useful to know:
- If someone has resealed it before
- Where the property is
- Pictures of the joints, sent by email
- The problem you’ve noticed
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work.