Bracknell Forest · England
Window & door mastic in Great Hollands, Bracknell Forest
Mastic around window and door frames, sills and patio doors in Great Hollands, with a 12-month guarantee on every job. Ask us for a quote.
- Mastic that’s falling out in pieces
- Whistling draughts around closed windows
- Rain getting in at the frame or under the sill
Window mastic in Great Hollands
Every window and door frame has a gap around it, and mastic is what closes it. Once that seal fails, wind and rain find the gap. Our applicators cut it out and replace it with a flexible, weatherproof sealant. Typical jobs include rushed sealant from a window installation and water coming in at the bottom corners of a door, on timber windows & doors, aluminium frames and uPVC windows.
In smaller places like Great Hollands, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. Each frame material needs the right sealant against the right wall.
Each job carries a 12-month guarantee, large or small.
- Location
- Great Hollands (RG12, RG40)
- Region
- Bracknell Forest
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Common questions in Great Hollands
Do you work for landlords with property near Bracknell station?
Yes, landlords and agents are among the people we work for. Just call 0345 464 0079 or email us with the address and what needs doing, and we’ll send you a clear quote.
Is it worth replacing old sealant in an older home in Great Hollands?
Often, yes: cracked, shrunken or mouldy sealant has done its job. New sealant will not stick to old, so the old bead has to come out completely first.
Do you work on first-floor windows?
Yes, in most cases. Access is planned before we start.
Is the work guaranteed?
Yes. Each job is covered for 12 months.
Do you have insurance?
Yes. We’re fully insured for domestic and commercial work.
Is the new sealant paintable?
Most silicone can’t be painted. Let us know beforehand, and we’ll use a paintable product where it suits.
Do you remove the old sealant?
Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Does someone need to be in?
We need access to the joints, so we’ll agree that with you when we book. Indoors, that usually means someone at home.
Landlords, agents and businesses in Great Hollands
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will quote.
How to look after the new joints
A little care helps the new joints last. Our advice:
- Do not aim a pressure washer at the joints
- Clear any debris from frame drain holes
- Don’t use solvent cleaners on the joint
- Wipe condensation off the frames
Keep the new mastic undisturbed while it cures, for as long as we advise. Don’t point a pressure washer at the joints.
Leaks usually show up in wet, windy weather, but resealing works best in dry conditions. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
Signs you need window mastic in Great Hollands
A lot of older mastic was never designed to stay flexible. Once it’s rigid, every bit of frame movement pulls at it, leaving a hairline gap down one side.
If you can see any of these, it’s time to have the joints looked at:
- Old mastic that has gone black or come away
- Damp patches on the reveal after heavy rain
- Untidy mastic left by window fitters
- A bead that does not match the frame
Schools such as Great Hollands Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Before booking anyone
- Whether VAT is included
- Whether you can choose the colour
- How long the guarantee is
- What happens if the job turns out different
What happens on the day
We work through the job in order: protect, prepare, seal, tidy. Typically it takes a few hours for a handful of frames, longer for a whole house and we leave things clean and tidy. For a job in Great Hollands, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Preparing for the visit
- Tell us about any water getting in
- Where the joints are inside, avoid wetting them before we arrive
- Tell us if parking is tricky
Get a quote
Want a quote for window mastic? Please ring 0345 464 0079 or email us with a few details. We will explain what we’d do and give you a clear price before work begins.
Related advice
Honest limits
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Draughts through the window seals rather than the frame
- Rotten timber, which needs a joiner first
- Damp problems in the wall away from the window
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think.
Surfaces we seal
- Timber windows & doors
- Aluminium frames
- Window sills
- Composite doors
- uPVC windows
- Patio & French doors
What the job involves on each surface
Patio & French doors
Not every patio door leak is a mastic problem: worn seals, blocked drainage slots or a poor threshold detail can be the cause. We check before we reseal.
Composite doors
Front doors take the weather head on. Those corners get the most care.
Places near Great Hollands
More services for Great Hollands
Should I try it myself first?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
Frames and glazing around Great Hollands
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Bracknell, which Great Hollands is part of, is one of England’s post-war new towns. With many homes from the post-war decades, replacement windows and doors are common. That mastic ages as well, and sills and frame heads are where leaks start.
For an older house near a landmark such as St Michael and St Mary Magdalene's Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you let a flat or house near Bracknell station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Great Hollands is about 1 mile south-west of Bracknell, in Bracknell Forest. For window mastic in and around Great Hollands, it’s easy to get a quote: please phone 0345 464 0079 or email us. We are based in Crawley and cover Bracknell Forest. Great Hollands is one of 41 towns and villages in Bracknell Forest we cover. We also work in Reading, about 10 miles from Great Hollands.
All of RG12 and RG40 is within our area for window mastic. If you need window mastic at a property on Gull Lane, Mill Lane and Cuckoo Lane or a nearby road, our applicators can take on the job. With the A3095 close by, Great Hollands is simple for us to get to. We also cover the places around Great Hollands: Hanworth (1 mile south-east), Wooden Hill (1 mile south), Home Farm (1 mile south-west), Birch Hill (1 mile south-east) and Crown Wood (1 mile east). Further out, we also cover Sandhurst (4 miles south), Whitegrove (3 miles north-east), College Town (4 miles south), Little Sandhurst (4 miles south-west), Warfield Park (3 miles north-east) and Owlsmoor (3 miles south). Great Hollands is among the bigger towns we cover in Bracknell Forest.
Around Great Hollands
In Great Hollands, that means homes and buildings near Golden Retriever pub, Easthampstead Park Community School and The Brakenhale School. The nearest railway station is Bracknell station, roughly 1.3 miles north-east of the centre. Other landmarks nearby include The Lexicon (1.5 miles north-east) and Pinewood Hospital (1.4 miles south-west). Not far away are Wildmoor Heath and Heath Lake.