Buckinghamshire · England
Sand mastic for sash & case windows in Botley, Buckinghamshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Botley, backed by a 12-month guarantee. Call for a quick quote.
- Gaps round a timber door in stone or brick
- Mastic dropping out of the joint
- Tired mastic found when preparing windows for paint
Surface by surface
Tenement and terrace windows
Where a building is shared, window work may involve neighbours so it’s worth checking responsibilities.
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. On listed buildings, check with your planning authority first.
Sand mastic for homes and businesses in Botley
A silicone bead around a sash window can look out of place and doesn’t suit the building. Sand mastic is the traditional choice and we can swap the silicone for it. We work on stone surrounds, timber door frames and tenement windows, and people most often call us about gaps round a timber door in stone or brick and gaps where the frame meets the masonry.
Around Botley, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
All of our work is guaranteed for twelve months, in Botley and everywhere else we cover.
- Place
- Botley (HP5)
- Region
- Buckinghamshire
- Cover
- A year, on every job
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Questions from Botley
Do you cover Botley for sand mastic?
Yes, Botley is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear quote.
Do you cover smaller places like Botley?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do you work for landlords and businesses?
Yes, we do. We work in homes, commercial premises and hotels.
Do you guarantee sand mastic work?
There’s a 12-month guarantee on every job.
Will there be a smell?
Some sealants have a smell while they cure. Ventilation helps.
Do you have insurance?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
Is it possible to take out silicone and use sand mastic instead?
In most cases. We remove the silicone and clean the joint, then point it with sand mastic.
Which products do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so just mention it when you contact us.
How it works
Before we leave, we go over the finished joints with you and explain the cure time. The work normally takes anything from a few hours to a full day, depending on how many windows, depending on the size of the job. In a small place like Botley, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check each window surround and the condition of the joint.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic is not too thick.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Preparing for the visit
- Keep pets and children clear of the area while we work
- Let us know about earlier repairs to the joints
- Let us know about parking restrictions
How to get a quote
We quote each job on its own, so the first step is telling us about yours. Just phone 0345 464 0079 or drop us an email with the details and send photos if you have them.
Read more
Sand mastic in Botley: local notes
Historic houses like Chenies Manor House (about 3.1 miles south-east) are a reminder that the area around Botley has older buildings as well as new. 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, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Rented homes near Amersham station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out. In the older streets around St George's Church, the joint between an old wall and a newer frame is usually the first place rain gets in. For site and facilities teams at buildings such as Ley Hill School, the mastic around its windows and doors needs looking after like any other building’s.
Botley is about 1 mile east of Chesham, in Buckinghamshire. Homes, rented property, offices and hotels in Botley can book us for sand mastic. Every job comes with our one-year guarantee. Across Buckinghamshire, we cover 263 places, and Botley is one of them. For nearby work, see our London page.
Our applicators cover all of HP5 for sand mastic and the streets around it. Streets in the area include Botley Road, Broomstick Lane and Goose Acre, and we cover them all. We also cover Tyler's Hill (1 mile south), Ley Hill (1 mile east), Lye Green (1 mile north), Orchard Leigh (1 mile north) and Bovingdon (2 miles north-east). Larger places within reach include Aylesbury (13 miles north-west), High Wycombe (9 miles south-west), Marlow (13 miles south-west), Amersham (3 miles south-west), Beaconsfield (8 miles south-west) and Chalfont St Peter (7 miles south).
Around Botley
We work in homes and buildings around Chesham Grammar School and The Crown pub, among other places. For rail, the closest station is Amersham station, roughly 2.7 miles south-west of the centre. Well-known places in the area include Amersham Hospital (3.7 miles south-west) and Hawridge Court (3.1 miles north-west). Not far away are Sands Bank.
What happens if it’s left?
Silicone might seem the quicker option, but it can look wrong on a period surround. Sand mastic suits the building and blends with the stone or brick. Older cottages and farmhouses around Botley can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Why Botley clients choose us
- We’re fully insured
- Old sealant always removed completely
- 20+ years of sealant experience
- We leave the area clean and tidy
See our cost guide or our reviews.
Places near Botley
More services for Botley
When it is not the sealant
It helps to know what we can’t do:
- Cracked or broken glass
- Crumbling stone or brickwork round the window
- Whether work needs listed building consent
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think before booking.
Surfaces we seal
- Tenement windows
- Sash and case windows
- Period & listed homes
- Timber door frames
- Stone surrounds
- Brick reveals
How we quote for sand mastic
Call for a quick quote. The main things that affect it are:
- The old material and how stubborn it is
- When we can work, for business premises
- Whether the work is at height
- The type of sealant required
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What we need to know
When you call or email, it’s useful to know:
- Roughly how big the job is
- A few pictures by email, if you can
- Any access issues, like height or stairs
- The problem you’ve noticed
Asking for a quote is easy: tell us what needs doing and where, and roughly how big it is. A few photos by email make the job easier to understand, and we’ll take it from there.
For landlords and businesses
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll quote.