Slough · England
Sand mastic for sash & case windows in Egypt, Slough
Sand mastic across Egypt and nearby, with old sealant always removed completely and a 12-month guarantee.
- Tired mastic found when preparing windows for paint
- Gaps between timber frames and stone or brick
- Old sand mastic that has cracked, crumbled or fallen out
How we handle sand mastic in Egypt
Burnt sand mastic is a traditional material blends with stone and brick surrounds. It suits period and listed homes where a modern sealant bead would stand out. If you’re dealing with window mastic to renew ahead of painting and old cement repairs round a window that have failed, we can help.
Outdoor sealant needs dry, clean surfaces, so work on frames around Egypt is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
All our work comes with a one-year guarantee, wherever you are in Slough.
- Where
- Egypt (SL2)
- Wider area
- Slough
- Cover
- A year, on every job
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What we’re called out for in Egypt
Rain on the window surround works into any crack and pushes it out. Exposed elevations generally fail first.
The problems people usually mention when they call include:
- Mastic dropping out of the joint
- Gaps where the frame meets the masonry
- Patchy fillers round a sash window
- Wind and rain getting in round a sash window
In the older streets around St John the Evangelist, the joint between an old wall and a newer frame is usually the first place rain gets in.
Before you book anyone
- Which colour the sealant will be
- Which sealant they’ll use, and why
- What the cure time is
- What happens if the job turns out different
How we quote for sand mastic
You will get a clear quote before work begins. It’s based on:
- How easy the joints are to reach
- Mould in or behind the old joints
- When we can work, for business premises
- How much old sealant there is and how hard it is to remove
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
Asking for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Whether it’s a home or a business
- What’s wrong with the joints now
- Pictures of the joints, sent by email
- The address or postcode of the job
There’s no standard price list. Instead, we give you a clear quote for your job. To get started, phone 0345 464 0079 or email us.
Looking after it afterwards
Simple care keeps the joints in good condition. Our advice:
- Renew mastic before redecorating the windows
- Ask us before painting near the mastic
- Take care around the mastic when scraping paint
- Have rotten timber repaired before new mastic goes in
Leave the new mastic alone while it firms up. It forms a skin fairly soon but needs longer to fully harden.
It’s best to renew mastic before painting the windows. Paint over cracked mastic only covers it up.
What sealant work can’t fix
Sealant isn’t the answer to every problem, and we will tell you before work begins. It will not solve:
- Planning or listed building consent (your local planning authority decides)
- Masonry that needs repairing
- Timber that has rotted
If in doubt, phone 0345 464 0079 or send us an email and we will say what we think.
Joints and surfaces we work on
- Period & listed homes
- Brick reveals
- Timber door frames
- Tenement windows
- Stone surrounds
- Sash and case windows
Why deal with it now?
New mastic over crumbling mastic won’t hold. We remove the loose material first so the new work lasts. In a small place like Egypt, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we’ll go through it with you.
Why choose Mr Mastic in Egypt
- 4.9 on Google from 180+ five-star reviews
- Full insurance on every job
- Approved under the ARBOMaster scheme
- 12-month guarantee on every job
How the visit works
A visit follows a simple pattern: we look at the joints together, protect the area around them, carry out the job and clear up. Most jobs take a few hours for a single window, longer for several. For a village or hamlet like Egypt, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic is not too thick.
- We point the joint with sand mastic 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
- Clear the area around the work
- Let us know about parking restrictions
How to get a quote
We quote each job on its own. Just call 0345 464 0079 or drop us an email with the details, and photos are welcome.
Read more
Frames and glazing around Egypt
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Cliveden (about 3 miles west) are a reminder that the area around Egypt 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.
Letting a property close to Burnham station? Then any sash windows need sound mastic to keep draughts and rain out. Schools such as Farnham Common Infant School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Egypt is about 3 miles north of Slough, in Slough. If you need sand mastic in Egypt, please call 0345 464 0079 or drop us an email for a quick quote. We cover Slough from our Crawley base, Egypt included. Egypt is one of 31 places in Slough we cover for sand mastic. You can also see our page for Reading, about 17 miles away.
Jobs for sand mastic in SL2 is quoted and booked the same way as anywhere else. Whether your property is on Cages Wood Drive, Hammond End and The Avenue or anywhere close by, our applicators can take on the job. If you are just outside Egypt, we cover Farnham Common (1 mile south-east), Hedgerley (1 mile north-east), East Burnham (1 mile south), Farnham Royal (1 mile south) and Littleworth Corner (2 miles west). Further out, we also cover Slough (3 miles south), Cippenham (3 miles south), Chalvey (4 miles south), Langley (5 miles south-east), Upton (4 miles south) and Burnham (3 miles south-west).
Near you in Egypt
In Egypt, that means homes and buildings near Beechwood School, The Royal Oak pub and Caldicott School, among other places. The nearest railway station is Burnham station, roughly 2.9 miles south-west. Well-known places in the area include Wexham Park Hospital (2.7 miles south-east). The countryside around Egypt includes Burnham Beeches and Taplow Lake.
Can I do it myself?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
What else we do in Egypt
Questions from Egypt
Can you help a landlord with a rental near Burnham station?
Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or email us with the address and what needs doing, and we’ll send you a clear quote.
Do you cover Egypt for sand mastic?
Yes, Egypt is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job, and we will send you a clear quote.
Do you offer different sealant colours?
Normally, yes. Sealants come in white, clear, grey and other colours, and we’ll agree it with you first.
What is sand mastic?
Sand mastic is a traditional material for pointing round windows and doors. It’s made with sand and a linseed-oil-based binder.
Is it messy?
Very little: the area around the joints is protected first, and we tidy up before we go.
Where do you work from?
Our base is in Crawley, and we work across South East England, London and Scotland.
How much does sand mastic cost in Egypt?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. You’ll get a clear quote before work begins.
Can sand mastic be painted?
Traditional guidance is not to paint over sand mastic. If you are redecorating the window, ask us first and we will talk you through it.