West Berkshire · England
Crookham Window Mastic
We cover Crookham for mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and a one-year guarantee.
- Mastic that has split away from the wall
- Cracked sealant at the sill ends
- A bead that does not match the frame
What we can’t put right
To be straight with you, there are a few things sealant won’t fix:
- Penetrating damp from a failed cavity tray or render
- A door that needs adjusting, rehanging or new seals
- Broken hinges, locks or handles
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly.
Surfaces we seal
- Timber windows & doors
- Composite doors
- uPVC windows
- Window sills
- Patio & French doors
- Aluminium frames
Window mastic in Crookham
Some gaps around frames are far deeper than they look. Filling it with sealant alone leaves a joint that can’t move properly, so we fit backing rod to set the right depth. That way the new bead bonds to the frame and the wall only. We work on timber windows & doors, composite doors and aluminium frames, and common reasons people get in touch are cracked sealant at the sill ends and a bead that doesn’t match the frame.
Somewhere as small as Crookham, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Where
- Crookham (RG7, RG19)
- Region
- West Berkshire
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Nearby places to Crookham
More services for Crookham
Keeping the joints in good condition
After the cure time, these simple habits help:
- Use gentle cleaners on frames and sealant
- Clear any debris from frame drain holes
- Repaint timber before it’s bare
- Keep solvents and bleach off the sealant
Check the drainage slots in the frames aren’t blocked, so rain drains out rather than building up at the sealant.
Signs to watch for: 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.
What affects the quote in Crookham
Jobs vary more than people expect. What affects the quote:
- The size of the job
- How much old sealant there is and how hard it is to remove
- Whether there’s mould to deal with
- The number of rooms or windows
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
What we need to know
Before you ask for a quote, have a think about:
- Whether it’s a home or a business
- If someone has resealed it before
- Pictures of the joints, sent by email
- Roughly how big the job is
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email photos if that’s easy.
What the job involves on each surface
Patio & French doors
Water at the foot of a door frame isn’t always the mastic: worn seals, blocked drainage slots or a poor threshold detail can be the cause. We look for the cause first.
Window sills
Stone and concrete sills have their own joints, including the one between the sill and the frame above. We seal those with a sealant suited to masonry.
Crookham questions
Can you help a landlord with a rental near Thatcham station?
Yes, we work for letting agents and landlords. You can phone 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before we start.
Is Crookham in your area for window mastic?
Yes. Our work covers London and the South East, and Crookham is part of that. Just call 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear quote.
What do you need from me for a quote?
Only a few details: where it is, what you’ve noticed and how we reach it. After that, simply ring 0345 464 0079 or send us an email.
Do you guarantee window mastic?
Yes, with our one-year guarantee. Keeping drainage clear and checking the joints yearly helps them last.
Which products do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Do you remove the old sealant?
Yes, always, and completely. New sealant will not bond properly to old, so any old material comes out before anything new goes in.
How do I get a quote for window mastic in Crookham?
It depends on the job, so we quote each one individually. To get one, call 0345 464 0079 or drop us an email and tell us what needs doing and where.
Will new mastic stop draughts?
Yes, if the air is getting in around the frame. If it’s through the window’s own seals or a hinge, that is a different fix, and we’ll say so.
When to call us in Crookham
Frames are never completely still. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the brick or render around it hardly moves. A sealant that can’t keep up eventually tears.
Any of these means the joints need attention:
- Sealant in the wrong colour for the frame
- Gaps between the frame and the inside reveal
- Draughts coming in around windows and doors
- Mastic that’s falling out in pieces
Schools such as Brimpton C.E. Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Comparing quotes
- How long to leave it before use
- Is VAT in the price?
- Whether you can choose the colour
- Whether all the old sealant comes out first
Crookham homes and the weather
Historic houses like Shaw House (about 5 miles north-west) are a reminder that the area around Crookham 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. 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.
Letting a property close to Thatcham station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. Homes close to Church of St Peter include some older properties, and the joint between an old wall and a newer frame is generally the first place rain gets in.
Crookham is about 3 miles south-east of Thatcham, in West Berkshire. If you need window mastic in Crookham, please ring 0345 464 0079 or email us for a quick quote. We are based in Crawley and cover West Berkshire. Crookham is one of 155 towns and villages in West Berkshire we cover. You can also see our page for Reading, roughly 12 miles from Crookham.
All of RG7 and RG19 is within our area for window mastic. Local streets include Crookham Common Road and Hyde End Lane. Other places close to Crookham include Hyde End (1 mile south-east), Goose Hill (1 mile south-west), Mill Green (1 mile south-west), Ashford Hill (2 miles south-east) and Plastow Green (2 miles south-west). Larger places within reach include Newbury (5 miles west), Thatcham (3 miles north-west), Burghfield Common (7 miles east), Speenhamland (5 miles north-west), Hungerford (13 miles west) and Spencers Wood (11 miles east).
Landmarks near Crookham
Around Crookham, our work takes us to homes and buildings near Kennet School and The Travellers Friend pub, among other places. The nearest railway station is Thatcham station, about 1.6 miles north-west. Well-known places in the area include Old Chapel Textile Centre (2.7 miles west) and West Berkshire Community Hospital (3.8 miles north-west). The countryside around Crookham includes Thatcham Reed Beds.
Landlord and commercial work in Crookham
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
We work for landlords and agents as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.
How it works
All our tools and materials come with us in the van, so you do not need to buy or prepare anything. After a quick look at the joints together, we protect the area and start. It normally takes a morning for a couple of windows and a door. Somewhere as small as Crookham, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check each frame and agree which ones need doing.
- The old mastic is cut out and the surfaces cleaned back.
- Deep gaps are filled with backing rod to set the depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Every joint is checked before we leave.
Preparing for the visit
- Mention any tricky access
- Where the joints are inside, avoid wetting them before we arrive
- On commercial sites, let us know about site rules
Ask for a quote
Need a quote? Please call 0345 464 0079 or drop us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.