Slough · England
Sand Mastic in Cippenham
Sand mastic across Cippenham and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Old sand mastic that has cracked, crumbled or fallen out
- Mastic worn away on windows facing the weather
- Tired mastic found when preparing windows for paint
Sand mastic in Cippenham, done properly
Old sand mastic cracks, crumbles and falls out over time and gaps open up round the frame. We rake it out and renew it and tidies the surround. Common call-outs are for cement or filler used on old window joints that has cracked and mastic dropping out of the joint, across brick reveals, sash and case windows and tenement windows.
In smaller places like Cippenham, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. The right sealant depends on the frame and on what it sits in.
Big or small, you get the same one-year guarantee in Cippenham and across Slough.
- Location
- Cippenham (SL1, SL2)
- Region
- Slough
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Surface by surface
Sash and case windows
On a sash window, the mastic joint shows on the outside, so a neat, even finish matters.
Timber door frames
Sand mastic is used round timber door frames too. We renew it the same way as on windows.
How it works
We bring everything the job needs with us. Once we have agreed what’s being done, the area is protected and the work begins. Most jobs take a few hours for a single window, longer for several. For a job in Cippenham, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
How to prepare
- For indoor joints, keep the area dry beforehand if you can
- Tell us if parking is tricky
- Let us know about stairs, lifts or work at height
Ask for a quote
Every job is quoted individually. Simply phone 0345 464 0079 or drop us an email and describe the job.
Related advice
Cippenham homes and the weather
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Dorney Court (about 1.6 miles south-west) nearby, there’s older building stock in the area around Cippenham as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Homes close to St. Andrew's Shared Church include some older properties, and the joint between an old wall and a newer frame is usually the first place rain gets in. Letting a property close to Burnham station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
Cippenham is about 1 mile west of Slough, in Slough. From the centre of Cippenham to the outskirts, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Our Slough coverage runs to 31 places, Cippenham among them. Our Reading page covers work nearby (15 miles or so).
Here we cover the SL1 and SL2 postcode area for sand mastic. We cover properties on Bath Road, Earls Lane and Eagle Road and the roads around them. Other places close to Cippenham include Huntercombe (1 mile north-west), Lake End (1 mile west), Dorney (1 mile south-west), Slough (1 mile east) and Burnham (1 mile north-west). Larger places within reach include Langley (4 miles east), Datchet (3 miles south-east), Stoke Poges (3 miles north-east), Ditton (4 miles south-east), Farnham Common (3 miles north) and Wexham Court (3 miles east). Cippenham is among the bigger towns we cover in Slough.
What’s near Cippenham
Typical jobs here are in homes near The Westgate School, Westgate School and Haymill Valley, among other places. Cippenham’s nearest station is Burnham station, roughly 0.6 miles north-west of the centre. Other landmarks nearby include Windsor Castle (2.7 miles south-east) and The History On Wheels Museum (1.1 miles south-east). For a walk, there’s Bray Pit and Taplow Lake.
Why act early in Cippenham
Silicone might seem the quicker option, but it can look wrong on a period surround. Sand mastic is the traditional material and blends with the stone or brick. Homes in smaller places like Cippenham can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote and we’ll talk you through it.
Why book with us
- Experience in homes, commercial sites and hotels
- Arbo and Everbuild products
- Any old sealant cut out fully, not covered over
- Every job guaranteed for a year
Read how sealant jobs are priced and customer reviews.
Your questions about sand mastic in Cippenham
Can you do sand mastic in Cippenham?
Yes. We work across London and the South East, and Cippenham is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job.
Will you come out to Cippenham?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Do you have insurance?
Yes, we are fully insured for every job we do.
Do you work for hotels and businesses?
Yes, regularly. We can plan bigger jobs in stages.
Can I paint the new mastic?
Sand mastic is normally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.
I rent my home. Can I book you?
We’re happy to deal with the tenant, landlord or agent. Just make sure your landlord agrees.
What is sand mastic?
It’s a mix of sand and a linseed-oil-based binder. It’s built up in the joint by hand and finished to sit neatly against the masonry.
How to look after the new joints
Joint life depends on how it’s used and looked after. We suggest:
- Sort the mastic before the decorators arrive
- Make sure water runs off the sill
- Avoid heavy scraping on the mastic joint
- Keep modern sealant off the mastic
Don’t touch or press the mastic while it hardens. It forms a skin fairly soon but needs longer to fully harden.
An open joint round the box lets weather through. The longer it’s left, the more the joint opens as more mastic falls out.
What sealant work cannot fix
Before booking, it’s worth knowing the limits:
- Timber that has rotted
- Damaged stone surrounds
- Planning or listed building consent (your local planning authority decides)
Not sure which it is? You can call 0345 464 0079 or drop us an email and we’ll tell you honestly.
What we seal
- Timber door frames
- Brick reveals
- Period & listed homes
- Tenement windows
- Sash and case windows
- Stone surrounds
Also in Cippenham
DIY versus a professional finish
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
When to call us in Cippenham
Timber swells and shrinks with the weather. The movement cracks the mastic little by little.
If you can see any of these, it’s time to have the joints looked at:
- Open joints round the window box
- Gaps round a timber door in stone or brick
- Patchy fillers round a sash window
- Window mastic to renew ahead of painting
For site and facilities teams at buildings such as Cippenham Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Before you book anyone
- Whether VAT is included
- Who turns up on the day
- Is the old sealant removed completely?
- How long the guarantee is