Slough · England
Window & door mastic in Wexham Court, Slough
Specialist window mastic for Wexham Court: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- White mastic on grey or black frames
- Cracked or shrunken mastic around the frame
- Cold air getting in at the frame edge
When to call us in Wexham Court
Sun, frost and rain wear sealant out. Sunlight dries the surface out, until it loses its stretch and starts to crack.
Signs it’s time to call us include:
- Sealant in the wrong colour for the frame
- Mastic that has split away from the wall
- Draughts coming in around windows and doors
- Gaps left after new windows were fitted
For landlords with property near Slough station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
What your quote should include
- Is the old sealant removed completely?
- Which colour the sealant will be
- Who does the work, and how experienced they are
- How long the guarantee is
Window mastic for homes and businesses in Wexham Court
Most frames have an outside joint and an inside one. The external joint is the weather seal; inside, the joint between frame and plaster stops draughts and tidies the reveal. Either or both can be done. Typical jobs include cracked internal joints between frame and plaster and leaking joints at the ends of sills, on patio & French doors, uPVC windows and window sills.
Mastic can only go onto a dry, clean joint, so window work in Wexham Court is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
There’s a 12-month guarantee on every job, whatever its size.
- Place
- Wexham Court (SL2, SL3)
- Wider area
- Slough
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026

Nearby places to Wexham Court
Also in Wexham Court
What affects the cost of window mastic
Every job gets its own quote. This is what makes a difference:
- The amount of work
- The product the joint needs
- Whether there’s mould to deal with
- The number of rooms or windows
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we’ll explain what it covers.
What to tell us for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Where the property is
- Photos by email, if that is easy
- If it’s domestic, commercial or a hotel
- Whether it has been sealed before
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. Whenever you are ready, ring 0345 464 0079 or drop us an email.
Window mastic in Wexham Court: local notes
Historic houses like Windsor Castle (about 3.4 miles south) are a reminder that the area around Wexham Court has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. 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.
In the older streets around Parish Church of St Mary, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. If you look after a building such as Wexham School, its window and door frames need their mastic kept sound, just like a home’s.
Wexham Court is about 2 miles north-east of Slough, in Slough. Across the SL2 area, we can carry out window mastic at your property. 31 places in Slough are on our list. We also work in Reading, around 18 miles away.
Here we cover the SL2 and SL3 postcode area for window mastic. Window mastic is available to properties on Church Lane, Wexham Road and Century Lane and the roads around them. We also cover the places around Wexham Court: Wexham Street (1 mile north), George Green (1 mile south-east), Stoke Poges (1 mile north), Middlegreen (2 miles south-east) and Upton (2 miles south). Larger places within reach include Cippenham (3 miles west), Burnham (4 miles west), Datchet (3 miles south), Huntercombe (3 miles west), Ditton (3 miles south) and Poyle (4 miles south-east).
Around Wexham Court
We work in homes and buildings around Red Lion Public House and Wexham Court Primary School and the streets around them. For rail, the closest station is Slough station, about 1.4 miles south-west. A little further out are Windsor Castle (3.4 miles south) and Wexham Park Hospital (under half a mile north). Open spaces near Wexham Court include Taplow Lake and Stoke Common.
DIY versus a professional finish
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
If you do try it yourself, take your time over the 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.
When something else is needed
We won’t take on work that won’t last, so here’s what sealant can’t put right:
- A sash or casement that will not close properly
- A door that needs adjusting, rehanging or new seals
- Damp problems in the wall away from the window
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think before booking.
Surfaces we seal
- Aluminium frames
- Patio & French doors
- uPVC windows
- Composite doors
- Window sills
- Timber windows & doors
Questions from Wexham Court
Do you cover Wexham Court for window mastic?
Yes. We work across London and the South East, and Wexham Court is part of that. Just phone 0345 464 0079 or email us with a few details of the job, and we will send you a clear quote.
Do you work for landlords with property near Slough station?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before any work starts.
Can you reach windows above the ground floor?
Yes, as long as they can be reached safely. Tell us about access when you get in touch so we can plan the job.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
What does window mastic cost?
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 any work starts.
Where do you work from?
Mr Mastic is based in Crawley. We cover Wexham Court and the rest of Slough.
Do the sealants smell?
It depends on the product. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you do not need to watch us work.
What we do, step by step
The work is kept neat and contained to the joints we are treating. Expect the work to take a morning for a couple of windows and a door, and we explain the cure time before we leave. In a small place like Wexham Court, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we look at every frame and agree the list.
- We remove the old mastic and clean the frame and the wall.
- We fit backing rod in deep gaps so the sealant is the right depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Finally we tidy up and check each joint.
Before we arrive
- Keep pets and children clear of the area while we work
- Tell us about any previous sealing or DIY attempts
- Let us know if you’ve seen damp or leaks
Get a quote
If you are in Wexham Court and need window mastic, phone 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Read more
Different surfaces, different methods
Aluminium frames
Aluminium moves with heat, and the frames are often slimmer than uPVC. A tidy bead in anthracite grey, black or a matching colour suits the frame.
Patio & French doors
Door frames take knocks and movement every time the doors are used. A flexible sealant copes with that.
Landlord and commercial work in Wexham Court
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
We work for landlords and letting agents as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.
