Slough · England
Window & door mastic in Littleworth Corner, Slough
Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in Littleworth Corner. Fully insured, ARBOMaster approved and guaranteed for a year.
- Whistling draughts around closed windows
- Draughty joints inside around the window
- Damp patches on the reveal after heavy rain
Window mastic for homes and businesses in Littleworth Corner
Over two decades of sealing frames has taught us which products suit which walls. We’re fully insured ARBOMaster approved applicators, and we give a one-year guarantee on the work. We work on window sills, timber windows & doors and composite doors, and the jobs we see most are sealant in the wrong colour for the frame and draughts coming in around windows and doors.
Outdoor sealant needs dry, clean surfaces, so work on frames around Littleworth Corner is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
Each job carries a 12-month guarantee.
- Where
- Littleworth Corner (SL1)
- Region
- Slough
- Cover
- A year, on every job
- Quote
- A clear price before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026

The process
On the day, there’s very little for you to do. Show us the job and we will take it from there. The job generally takes a morning for a couple of windows and a door from start to finish. In a small place like Littleworth Corner, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
Getting ready for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Let us know about parking restrictions
- Keep children and pets away from the work area
Ask for a quote
We do not publish a price list. Instead, we give you a clear quote for your job. To arrange one, call 0345 464 0079 or email us.
Read more
What sealant work cannot fix
Some problems need a builder, plumber or other trade rather than us:
- Draughts through the window seals rather than the frame
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Faulty window hardware
If in doubt, call 0345 464 0079 or email us and we will say what we think.
Surfaces we seal
- Aluminium frames
- Window sills
- Patio & French doors
- uPVC windows
- Timber windows & doors
- Composite doors
What window mastic looks like in Littleworth Corner
Historic houses like Cliveden (about 1.6 miles west) are a reminder that the area around Littleworth Corner 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. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For site and facilities teams at buildings such as Dropmore Infant School, the mastic around its windows and doors needs looking after like any other building’s. If you live in an older home near Church of St Anne, frames set in older brick or stone need a sealant that suits the wall as well as the frame. If you let a flat or house near Bourne End station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Littleworth Corner is about 3 miles south of Beaconsfield, in Slough. Homes, rented property, offices and hotels in Littleworth Corner is covered for window mastic, old or new, large or small. The work is guaranteed for a year. Across Slough, we cover 31 places, Littleworth Corner among them. You can also see our page for Reading, about 16 miles away.
Every address in SL1 is within our area for window mastic, from the main roads to the quietest streets. If you’re just outside Littleworth Corner, we cover Wooburn Common (1 mile north-west), Rose Hill (1 mile south-west), Egypt (2 miles east), Berghers Hill (2 miles north-west) and Hedsor (2 miles north-west). Larger places within reach include Slough (4 miles south-east), Cippenham (3 miles south), Chalvey (4 miles south-east), Langley (6 miles south-east), Upton (5 miles south-east) and Datchet (7 miles south-east).
Around Littleworth Corner
Around Littleworth Corner, our work takes us to homes and buildings near The Beech Tree Inn and Lynch Hill School Primary Academy. The nearest railway station is Bourne End station, roughly 2.6 miles west of the centre. A little further out are The Reitlinger Bequest Museum (3.6 miles south-west) and Wexham Park Hospital (4 miles south-east). For a walk, there’s Taplow Lake and Littleworth Common.
For landlords and businesses
We work for landlords and letting agents as well as homeowners. Resealing between tenancies keeps a property looking cared for.
If you manage several properties in or around Littleworth Corner, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.
What affects the quote in Littleworth Corner
For a quick quote, just ask. The main things that affect it are:
- Working hours on commercial sites
- The type of sealant required
- The number of rooms or windows
- How much old sealant there is and how hard it is to remove
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Asking for a quote
Photos by email are helpful but not essential. Please mention:
- Photos by email, if that is easy
- If it’s domestic, commercial or a hotel
- If someone has resealed it before
- Any access issues, like height or stairs
For window mastic in Littleworth Corner, call 0345 464 0079 or drop us an email. Tell us what the problem is and where, and we will agree the price before any work begins.
Surface by surface
Timber windows & doors
Wood swells when it’s wet and shrinks when it dries, so the joint must stay flexible. We seal onto sound, dry paintwork or timber.
Window sills
Sills catch the water running down the glass, so the sill ends and the joint under the frame are vital. They’re cut out and resealed with exterior sealant.
Aftercare tips
No joint lasts for ever, but care makes a real difference. Our tips:
- Keep paint and stain on wooden frames in good order
- Wash the frames with mild soapy water
- Ventilate rooms so frames don’t stay wet inside
- Keep paint off silicone joints
On timber frames, keep the paintwork in good order, since wood that gets wet swells and shrinks more. Paint up to the joint, not over the silicone.
Look out for the warning signs: split or missing mastic, gaps, damp patches inside or black mould on the reveal. If you notice one, it’s time to get the joint looked at.
Can I do it myself?
If you are set on DIY, put the effort into 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 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.
Common questions in Littleworth Corner
Can you help a landlord with a rental near Bourne End station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear price.
Is Littleworth Corner within the area you cover?
Yes. Littleworth Corner is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Where are you based?
We are based in Crawley, West Sussex, and we work across South East England, London and Scotland.
Is there any odour?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
What does window mastic cost?
It depends on the job, so we quote each one individually. For a quick quote, ring 0345 464 0079 or send us an email with a short description of the job.
Do you work for hotels and businesses?
Yes. We have worked for hotels, offices and other businesses.
Do you have sealant for grey or black windows?
Yes. We can use white, brown, anthracite grey, black or clear, so the joint suits the frame.
What should I tell you?
Let us know what needs doing and where, with photos by email if possible. If we need more, we will ask.
