Slough · England
Window Mastic in George Green
Problem with your window and door frames in George Green? We cut out the old, prepare the joints and apply the right sealant.
- Cracked internal joints between frame and plaster
- Sealant in the wrong colour for the frame
- Untidy mastic left by window fitters
Window mastic in George Green
Every window and door frame has a gap around it, and mastic is what closes it. When it cracks, hardens or pulls away, draughts and rain get in. The old mastic is removed and the joint resealed with a flexible exterior sealant. If you have mastic that has split away from the wall and leaking joints at the ends of sills, we can put it right, on window sills, timber windows & doors and composite doors alike.
Around George Green, 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.
We stand behind the work with a 12-month guarantee, so you are not left on your own once the job is done.
- Where
- George Green (SL3)
- Region
- Slough
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What window mastic looks like in George Green
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. Historic houses like Windsor Castle (about 3.3 miles south-west) are a reminder that the area around George Green 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.
If you look after a building such as Wexham Court Primary School, the mastic around its windows and doors needs looking after like any other building’s. For an older house near a landmark such as Parish Church of St Mary, the joint between an old wall and a newer frame is normally the first place rain gets in.
George Green is about 2 miles east of Slough, in Slough. George Green gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. 31 places in Slough are on our list, large and small. There’s also a page for Reading, roughly 19 miles from George Green.
Our applicators cover all of SL3 for window mastic and the streets around it. You will find streets such as Thorn Drive, August End and Blinco Lane, and we cover them all. Neighbouring places we cover for window mastic include Middlegreen (1 mile south), Wexham Court (1 mile north-west), Langley (1 mile south), Shreding Green (1 mile east) and Wexham Street (2 miles north-west). Further out, we also cover Cippenham (4 miles west), Chalvey (3 miles south-west), Britwell (3 miles west), Burnham (4 miles west), Datchet (3 miles south) and Huntercombe (4 miles west).
Around George Green
Typical jobs here are in homes near Wexham School, The George Public House and Upton Court Grammar School. George Green’s nearest station is Langley station, roughly 1.2 miles south-east. A little further out are The Pavilions (3.7 miles north-east) and Museum of Eton Life (3.1 miles south-west). For a walk, there’s Stoke Common.
Places near George Green
More services for George Green
Can I do it myself?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
If you do try it yourself, take your time over the 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.
What happens on the day
We keep the work tidy and contained to the area we are working on, so you can get on with your day. Expect the work to take most of a day for a typical house, less for a few frames, and we explain the cure time before we leave. Somewhere like George Green needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- Each frame is looked over and we agree which ones need resealing.
- 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.
Before we arrive
- On commercial sites, let us know about site rules
- Let us know about stairs, lifts or work at height
- Try not to wet indoor joints just before the visit
Ask for a quote
Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.
Advice
What we can’t put right
We’d rather tell you now than do work that won’t last, so these are the limits:
- Penetrating damp from a failed cavity tray or render
- Draughts through the window seals rather than the frame
- Faulty window hardware
If in doubt, phone 0345 464 0079 or drop us an email and we will say what we think.
Where we work in George Green
- Patio & French doors
- Timber windows & doors
- Aluminium frames
- Composite doors
- uPVC windows
- Window sills
What happens if it’s left?
Draughts and leaks do not always mean new windows. If the frames and glass are in good order, resealing the joints is often all that’s needed. Problems with the glass or gaskets are for a window company, and we will say so. In a small place like George Green, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
We don’t show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.
What you get with us
- Old sealant always removed completely
- Trusted Arbo and Everbuild sealants
- Homes, businesses and hotels
- Tidy, careful work
Read our cost guide and customer reviews.
Do you need window mastic in George Green?
Some failures date back to when the windows were fitted. Sealant run over dust, wet brick or loose mortar never bonded as it should, and it lets go sooner than it should.
The most common problems we see are:
- A bead that doesn’t match the frame
- Draughty joints inside around the window
- Damp patches on the reveal after heavy rain
- Cold air getting in at the frame edge
Rented homes near Langley station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
Questions to ask before you book
- Whether VAT is included
- What the cure time is
- Who turns up on the day
- What happens if they find a problem under the old sealant
How to look after the new joints
After the cure time, these simple habits help:
- Paint up to the joint, not over it
- Use gentle cleaners on frames and sealant
- Do not use solvent cleaners on the joint
- Walk round the house once a year and look at the joints
Check the drainage slots in the frames aren’t blocked, so rain drains out rather than building up at the sealant.
Wet, windy weather is when failed mastic shows itself, but sealant goes on best when frames and walls are dry. Sorting cracked mastic early means the joint is sound before the bad weather.
Your questions about window mastic in George Green
Will you come out to George Green?
Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Can you help a landlord with a rental near Langley station?
Yes. We work for letting agents and landlords as well as householders, and several properties can go on one quote. Just call 0345 464 0079 or email us with the address and what needs doing, and we’ll send you a clear quote.
Are you an approved applicator?
Yes. We are approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
How many windows can you do in a day?
The work takes a morning for a couple of windows and a door. Access and how stubborn the old mastic is affect the time most.
Can I add another job to the visit?
Of course. Doing several areas at once is normally more efficient.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. We cover George Green and the rest of Slough, along with the rest of our area.
What information do you need?
The location, the problem and the rough size of the job. Photos by email help too.
For landlords and businesses
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.