Surrey · England
Sand mastic for sash & case windows in Penny Pot, Surrey
Window and door surrounds in Penny Pot need attention? We remove the old material, prepare the joints and seal them properly.
- Mastic that needs renewing before redecorating
- Failed mastic on an exposed elevation
- Wind and rain getting in round a sash window
Sand mastic in Penny Pot
Sand mastic doesn’t last for ever and gaps open up round the frame. Renewing it closes the gap and tidies the surround. Common call-outs are for failed mastic on an exposed elevation and draughts and rain around sash boxes, on tenement windows, period & listed homes and stone surrounds.
Mastic can only go onto a dry, clean joint, so window work in Penny Pot is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
There’s a 12-month guarantee on every job, large or small.
- Where
- Penny Pot (GU24)
- Wider area
- Surrey
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What happens if it’s left?
Silicone might seem the quicker option, but it can look wrong on a period surround. Sand mastic is the traditional material and finishes neatly against the masonry. Where a wall is exposed, as many are in small places like Penny Pot, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why book with us
- Trusted Arbo and Everbuild sealants
- Anti-fungal silicone where joints get wet
- Fully insured
- Every job guaranteed for a year
Read our cost guide or our reviews.
What sealant work cannot fix
It helps to know what we cannot do:
- Planning or listed building consent (your local planning authority decides)
- Rotten sashes, sills or window boxes (a joiner’s job)
- Sashes that need overhauling
If in doubt, call 0345 464 0079 or email us and we will say what we think.
What we seal
- Brick reveals
- Tenement windows
- Timber door frames
- Period & listed homes
- Stone surrounds
- Sash and case windows
Surface by surface
Brick reveals
An open joint at a brick reveal lets weather in. Renewing the mastic closes it.
Tenement and terrace windows
Upper-floor windows need access planning. Tell us the height and we’ll confirm what’s needed.
How the visit works
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours for a single window, longer for several. Somewhere as small as Penny Pot, 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.
- Old, loose mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic isn’t too thick.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
Preparing for the visit
- Move anything stored near the joints
- On commercial sites, let us know about site rules
- Mention any leaks or damp you’ve noticed
Get a quote
We quote each job on its own, so the first step is telling us about yours. Simply phone 0345 464 0079 or drop us an email and describe the job, and pictures are welcome.
Advice
What we are called out for in Penny Pot
Scraping and sanding before painting can loosen old mastic. It’s often found when windows are being prepared for paint.
These are the problems we’re asked about most:
- Draughty sash windows at the surround
- Mastic round period door frames that has failed
- Patchy fillers round a sash window
- Mastic worn away on windows facing the weather
If you let a flat or house near Brookwood station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Comparing quotes
- How much experience the applicator has
- What insurance they hold
- Whether all the old sealant comes out first
- Whether VAT is included
Nearby places to Penny Pot
What else we do in Penny Pot
Penny Pot questions
Will you come out to Penny Pot?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you help a landlord with a rental near Brookwood station?
Yes, we work for landlords and letting agents. Just ring 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear quote.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we’re fully insured.
Which is right for my windows, sand mastic or modern sealant?
That depends on your windows. Period windows in stone or brick normally suit sand mastic, while modern frames normally get a flexible sealant.
Will it make a mess?
No. The area is protected while we work and cleaned up afterwards.
What sealant do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Do you take out the old sealant first?
Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.
What information do you need?
The location, the problem and the rough size of the job. If you can, email a few photos.
Frames and glazing around Penny Pot
Historic houses like Botleys Mansion (about 4.4 miles north-east) are a reminder that the area around Penny Pot has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For site and facilities teams at buildings such as Holy Trinity CofE Primary School, the mastic around its windows and doors needs looking after like any other building’s. Homes close to Church of St Lawrence include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Penny Pot is about 3 miles north-west of Woking, in Surrey. Across the GU24 area, our applicators can take on sand mastic. Our area takes in 395 places across Surrey, from the larger towns to small villages. Reading is on our list too, around 17 miles away.
Here we cover the GU24 postcode area for sand mastic. Nearby, we also carry out sand mastic in Castle Green (1 mile south-east), West End (1 mile west), Coxhill Green (1 mile north-east), Chobham (1 mile north-east) and Bisley (1 mile south-west). We also work in nearby towns such as Guildford (7 miles south), Woking (3 miles south-east), Camberley (5 miles west), Epsom (15 miles east), Farnham (12 miles south-west) and Egham (7 miles north-east).
Local landmarks in Penny Pot
Locally, jobs take us to homes and businesses close to Milford Green and Coxhill Green, The Sun Public House and Gordon's School, among other places. The nearest railway station is Brookwood station, about 2.7 miles south of the centre. Well-known places in the area include Brookwood Hospital (1.8 miles south) and The Peacocks (3 miles south-east). The countryside around Penny Pot includes Virginia Water Lake and Gracious Pond.
Can I do it myself?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Keeping the joints in good condition
Good habits help new joints last longer. Our tips:
- Find out about consent before window work on a listed home
- Ask us before painting near the mastic
- Keep sills and gutters clear so water drains away
- Get any rot dealt with first
Avoid painting over the new mastic, as traditional guidance advises. If you’re redecorating, ask us first.
An open joint round the box lets weather through. Left, the gap tends to get bigger.