Essex · England
Window Mastic in Crays Hill
Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in Crays Hill. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Gaps where the sill meets the wall
- Mastic that’s falling out in pieces
- White mastic on grey or black frames
Frames and glazing around Crays Hill
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For an older house near a landmark such as Church of St Mary, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. For landlords with property near Wickford station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Crays Hill is about 2 miles north of Basildon, in Essex. Whether you are in the middle of Crays Hill or further out, we cover window mastic for every kind of property. Across Essex, we cover 644 places, Crays Hill among them. We also work in Chelmsford, around 9 miles away.
Here we cover the CM11 postcode area for window mastic. That includes homes and businesses on London Road, Hope Road and Crays Hill and the roads around them. Other places close to Crays Hill include Great Burstead (1 mile west), Ramsden Bellhouse (1 mile north), Ramsden Heath (2 miles north), Downham (3 miles north) and Little Burstead (3 miles west). Larger places within reach include Chelmsford (9 miles north), Brentwood (7 miles west), Maldon (13 miles north-east), Canvey Island (7 miles south-east), Rayleigh (6 miles east) and Witham (15 miles north-east).
What’s near Crays Hill
In Crays Hill, that means homes and buildings near The Bromfords School and Sixth Form College, among other places. The closest station to Crays Hill is Wickford station, about 2.2 miles north-east. Other landmarks nearby include Barleylands Farm Museum (1.1 miles west) and Basildon University Hospital (3.1 miles south). Green spaces nearby include Norsey Wood.
About our window mastic in Crays Hill
The mastic around a window or door seals the gap between the frame and the wall. Once that seal fails, wind and rain find the gap. Our applicators cut it out and replace it with a flexible, weatherproof sealant. We are often asked to deal with black, perished sealant on frames and rushed sealant from a window installation, on aluminium frames, patio & French doors and uPVC windows.
Somewhere as small as Crays Hill, 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.
Whatever the size of the job, you get the same 12-month guarantee.

- Place
- Crays Hill (CM11)
- Region
- Essex
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Towns and villages near Crays Hill
Also in Crays Hill
Work for landlords, hotels and businesses
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
We also work for property managers and facilities teams in Crays Hill and across Essex. We can quote a run of properties together, and we are fully insured for the work.
Your questions about window mastic in Crays Hill
Can you do window mastic in Crays Hill?
Yes. Our work covers London and the South East, and Crays Hill is part of that. You can ring 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll give you a clear price.
Can you help a landlord with a rental near Wickford station?
Yes, we work for landlords and letting agents. You can call 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before we start.
Which products do you use?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we’ll tell you what we are using.
How many windows can you do in a day?
The work takes anything from an hour or two to a full day, depending on how many frames there are. Access and the amount of old mastic make the biggest difference.
Do you have sealant for grey or black windows?
Normally, yes. Tell us the frame colour when you get in touch and we will use the nearest match.
Can you quote for more than one area?
Of course. Doing several areas at once is normally more efficient, so mention them when you ask for a quote.
Are you insured?
Yes. We are fully insured, with over 20 years’ experience in sealant work.
Is it OK to seal over old sealant?
No, because it fails. The old sealant always comes out first, so the new joint bonds to clean surfaces.
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Clear any debris from frame drain holes
- Keep paint and stain on wooden frames in good order
- Keep jet washers away from the mastic
- Keep paint off silicone joints
Have a look at the joints once a year, ideally after winter. Cracks and lifting edges are easy to spot early.
Draughts get worse, not better. As the old mastic shrinks further, more air gets through, and heat escapes around the frame. A new joint closes it up.
Different surfaces, different methods
uPVC windows
uPVC expands and contracts noticeably with temperature, so we use a flexible, low-modulus sealant. White is the usual colour, with brown, anthracite grey and black for coloured frames.
Patio & French doors
Door frames take knocks and movement every time the doors are used. A flexible sealant copes with that, where a rigid one would crack.
Common problems we fix in Crays Hill
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.
Look out for these signs:
- Draughty joints inside around the window
- Gaps left after new windows were fitted
- Draughts coming in around windows and doors
- Mastic that has split away from the wall
Managing a site like Crays Hill Primary School? Then the mastic around its windows and doors needs looking after like any other building’s.
Comparing quotes
- Whether they seal over old material or remove it
- Whether VAT is included
- Whether you can choose the colour
- Whether they’re fully insured
Why deal with it now?
Draughts and leaks do not always mean new windows. Where the frames are sound, new mastic normally deals with draughts and leaks at the edges. Problems with the glass or gaskets are for a window company, and we will say so. Around Crays Hill, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
The cost depends on the amount of work, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts.
Why us?
- Over 20 years’ experience
- Arbo and Everbuild products
- We never seal over old sealant
- 4.9 on Google from 180+ five-star reviews
See what affects the cost and our reviews.
How the visit works
Most of a good job is in the preparation, and we do not rush it. Joints are cleaned back and dried before anything new goes in. In total, it normally takes a few hours for a handful of frames, longer for a whole house. Somewhere like Crays Hill needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We start by checking each window and door with you.
- Next the failed sealant is cut away and the joint cleaned.
- Deep gaps are filled with backing rod to set the depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Finally we tidy up and check each joint.
Preparing for the visit
- Mention any sign-in or site rules at work premises
- Tell us if parking is tricky
- Where the joints are inside, avoid wetting them before we arrive
Getting a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email photos if that is easy.
Advice
Honest limits
A few problems are outside what sealant work can do:
- A door that needs adjusting, rehanging or new seals
- Penetrating damp from a failed cavity tray or render
- A sash or casement that will not close properly
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly.
Joints and surfaces we work on
- Patio & French doors
- Aluminium frames
- uPVC windows
- Timber windows & doors
- Window sills
- Composite doors
