Bracknell Forest · England
Crown Wood Window Mastic
Window mastic in Crown Wood from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Cracked sealant at the sill ends
- Gaps left after new windows were fitted
- Draughty joints inside around the window
How we handle window mastic in Crown Wood
Colour matters on a frame. White, brown, anthracite grey, black and clear sealants are all available, so the bead blends with the window rather than framing it. Common call-outs are for hard, cracked sealant around windows and gaps where the sill meets the wall, across uPVC windows, timber windows & doors and composite doors.
Homes around Crown Wood range from older properties to newer houses, and their windows range just as widely. Each frame material needs the right sealant against the right wall.
Your job is guaranteed for a year, as with all our work.
- Place
- Crown Wood (RG12)
- Wider area
- Bracknell Forest
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Crown Wood questions
Do you cover smaller places like Crown Wood?
Yes, Crown Wood is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you work for landlords with property near Martins Heron station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear quote.
Can you seal over the old sealant?
No, because it fails. We remove every bit of old sealant first, so the new sealant bonds properly.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before resealing.
Do I have to be there?
That depends on where the joints are. For work indoors, someone needs to let us in.
How long should I leave it?
Cure times vary by product and the conditions. We tell you how long to leave it before we go.
Will new mastic stop draughts?
Yes, where the draught is at the frame edge. We check where the draught is before any work starts.
Do you do commercial work?
Yes, regularly. We can plan bigger jobs in stages.
Also near Crown Wood
Other services in Crown Wood
What happens if it’s left?
A cracked joint around a frame lets rain into the wall. Over time that can mean damp patches, damaged plaster and rotting timber. Resealing now is a small job by comparison. Homes in smaller places like Crown Wood can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
What you get with us
- We leave the area clean and tidy
- One-year guarantee on every job
- Any old sealant cut out fully, not covered over
- Fully insured
Take a look at how sealant jobs are priced or our reviews.
Crown Wood homes and the weather
Crown Wood is part of Bracknell, one of the post-war new towns. Many homes date from the post-war decades, and many will have had their original windows replaced. That mastic ages as well, and sills and frame heads are where leaks start. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you look after a building such as Crown Wood Primary School, the mastic around its windows and doors needs looking after like any other building’s. In the older streets around St Paul, the joint between an old wall and a newer frame is generally the first place rain gets in.
Crown Wood is about 1 mile south-east of Bracknell, in Bracknell Forest. Anywhere in RG12, we cover window mastic for homes and businesses. Crown Wood is one of 41 places in Bracknell Forest we cover for window mastic. We also work in Reading, around 11 miles away.
All of RG12 is covered for window mastic, from the main roads to the quietest streets. We cover properties on Bere Road, Mendip Road and Bagshot Road and the roads around them. You will find Crown Wood on the A322, so it’s easy for us to get to with everything needed for window mastic. We also cover Birch Hill (1 mile south-west), Hanworth (1 mile south-west), Great Hollands (1 mile west), Wooden Hill (2 miles south-west) and Home Farm (2 miles west). Further out, we also cover Sandhurst (4 miles south-west), Binfield (3 miles north-west), College Town (4 miles south), Little Sandhurst (4 miles south-west) and Owlsmoor (4 miles south-west).
Near you in Crown Wood
Typical jobs here are in homes near The Brakenhale School, The Brakenhale School and The Horse And Groom Public House. For rail, the closest station is Martins Heron station, roughly 0.8 miles north-east of the centre. Nearby you’ll also find The Lexicon (1.3 miles north) and Heatherwood Hospital (2.4 miles east). Not far away are Wildmoor Heath and Heath Lake.
How we quote for window mastic
We don’t publish a price list, because no two jobs are the same. The quote depends on:
- Whether the work is at height
- Whether there’s mould to deal with
- When we can work, for business premises
- How many areas need sealing
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re not sure whether it needs doing, ring 0345 464 0079 or email us for an honest opinion and a quote.
What we need to know
Photos help, but a description is a good start. Try to tell us:
- How many joints, rooms or windows are involved
- Any previous sealing or DIY work
- If it’s domestic, commercial or a hotel
- Access, such as stairs, a lift or height
We don’t publish a price list, because every job is different. Instead, we give you a clear price for your job. To get started, call 0345 464 0079 or send us an email.
Looking after it afterwards
Aftercare is simple, and it makes a real difference:
- Repaint timber before it’s bare
- Ventilate rooms so frames don’t stay wet inside
- Clear any debris from frame drain holes
- Walk round the house once a year and look at the joints
Timber frames need their paint kept up, because bare, wet timber moves more and pulls at the joint. Paint up to the joint, not over the silicone.
A failed joint lets water into the wall a little at a time. Often the first sign is a damp patch inside or flaking paint on the reveal. Catching it early keeps the fix to a reseal.
DIY versus a professional finish
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Common problems we fix in Crown Wood
Older frames were often sealed with products that set hard. Once it has hardened, the frame’s movement tears it from the wall, leaving a hairline gap down one side.
Keep an eye out for any of the following:
- Old mastic that has gone black or come away
- Hard, cracked sealant around windows
- Cracked internal joints between frame and plaster
- Untidy mastic left by window fitters
Rented homes near Martins Heron station change hands often, and 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
- How much experience the applicator has
- The length of the guarantee
- Which colour the sealant will be
- What the cure time is
How it works
Once we are on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes anything from an hour or two to a full day, depending on how many frames there are. Parking around Crown Wood is normally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- We check each frame and agree which ones need doing.
- The old mastic is cut out and the surfaces cleaned back.
- Where gaps are deep, backing rod goes in first.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Finally we tidy up and check each joint.
How to prepare
- Clear items away from the joints we are working on
- For indoor joints, keep the area dry beforehand if you can
- Let us know about stairs, lifts or work at height
Getting a quote
Asking for a quote is easy: let us know the job and the location and its rough size. Photos by email help us understand the job.
Read more
Different surfaces, different methods
Window sills
The end joints of a sill tend to fail before the rest. We reseal them so rain can’t run into the wall.
Composite doors
Front doors take the weather head on, and the top and bottom corners tend to fail first. Those corners get the most care.