Essex · England
Window & door mastic in Crow's Green, Essex
Problem with your window and door frames in Crow's Green? We cut out the old, prepare the joints and apply the right sealant.
- Whistling draughts around closed windows
- Untidy mastic left by window fitters
- Gaps between the frame and the inside reveal
Window mastic in Crow's Green
Homes in Crow's Green have every kind of window: from uPVC casements to timber and aluminium, along with patio doors, French doors and sills. Each gets a sealant chosen for the frame and the wall it meets. We’re often asked to deal with a bead that doesn’t match the frame and untidy mastic left by window fitters, across aluminium frames, composite doors and window sills.
In a village or hamlet like Crow's Green, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.

- Location
- Crow's Green (CM7)
- Wider area
- Essex
- Cover
- One year on every job
- Price
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Frames and glazing around Crow's Green
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For landlords with property near Braintree station, renewing tired window mastic between tenants heads off draught and damp complaints.
Crow's Green is about 5 miles west of Braintree, in Essex. Crow's Green gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Crow's Green is one of 644 towns and villages in Essex we cover for window mastic. Chelmsford is on our list too, about 12 miles from Crow's Green.
We cover every part of CM7 for window mastic and the streets around it. Neighbouring places we cover for window mastic include Great Saling (1 mile south-east), Bardfield Saling (1 mile north), Great Bardfield (3 miles north), Wethersfield (3 miles north) and Little Bardfield (4 miles north-west). Larger places within reach include Chelmsford (12 miles south), Braintree (5 miles east), Witham (10 miles south-east), Saffron Walden (12 miles north-west), Halstead (8 miles east) and Great Dunmow (5 miles south-west).
What’s near Crow's Green
We work in homes and buildings around The White Hart Inn. The closest station to Crow's Green is Braintree station, roughly 4.7 miles south-east of the centre. A little further out are Braintree Community Hospital (3.9 miles south-east).
Keeping the joints in good condition
Looking after new joints is easy:
- Keep paint and stain on wooden frames in good order
- Ventilate rooms so frames don’t stay wet inside
- Check the mastic once a year
- Keep drainage slots and sill grooves clear
Timber frames need their paint kept up, because bare, wet timber moves more and pulls at the joint. Keep paint off the silicone itself.
A small gap around a frame only grows. As the old mastic shrinks further, more air gets through, and a cold room gets colder. A new joint closes it up.
What happens on the day
You don’t need to clear the whole room or building, just the space around the work. We protect the rest, and the work takes a few hours for a handful of frames, longer for a whole house in most cases. Somewhere like Crow's Green needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away, 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
- Move anything stored near the joints
- Try not to wet indoor joints just before the visit
- Tell us about any previous sealing or DIY attempts
Get a quote
To get a quote, ring 0345 464 0079 or send us an email with the location and a short description of the problem. You’ll have a clear quote before we start.
Related advice
Do you need window mastic in Crow's Green?
Frames are never completely still. Sun on a frame makes it expand, and it contracts again overnight, while the brick or render around it hardly moves. A sealant that cannot keep up eventually tears.
These are the problems we’re asked about most:
- Draughts coming in around windows and doors
- Water coming in at the bottom corners of a door
- Mastic that is falling out in pieces
- Sealant in the wrong colour for the frame
In the older streets around Church of St James, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Before you book anyone
- How the joint is cleaned and prepared
- How the colour is chosen
- Who does the work, and how experienced they are
- The length of the guarantee
Questions from Crow's Green
Do you cover smaller places like Crow's Green?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is Crow's Green in your area for window mastic?
Yes, Crow's Green is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or send us an email and tell us what needs doing.
Do you work for landlords and businesses?
Yes, often. We can quote for several properties at once.
Can you reach windows above the ground floor?
Yes, if safe access is possible. Higher or awkward frames may need extra access, and we’ll confirm what’s needed.
Where is Mr Mastic based?
We are based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Is the new sealant paintable?
That depends on the product. Silicone is not paintable, but some hybrid sealants are. Tell us if you are decorating and we’ll choose accordingly.
Landlords, agents and businesses in Crow's Green
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will quote.
We work for letting agents and landlords as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.
Places near Crow's Green
More services for Crow's Green
What we can’t put right
In fairness, some problems need a different trade:
- Broken hinges, locks or handles
- A door that needs adjusting, rehanging or new seals
- Soft or decayed wood in the frame
If you’re not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer before you book.
What we seal
- Aluminium frames
- Timber windows & doors
- Patio & French doors
- uPVC windows
- Window sills
- Composite doors
Surface by surface
uPVC windows
uPVC expands and contracts noticeably with temperature, so the joint needs a low-modulus sealant that stays flexible. We match white, brown, anthracite grey and black frames.
Composite doors
Composite doors are normally hung in an uPVC-type frame, and the joint around it is sealed like a window. We match the colour to the frame.
Why it’s worth doing now in Crow's Green
The work is quick compared with the damage it prevents: the visit takes a few hours for a handful of frames, longer for a whole house. Wait for damp to appear and there may be plaster and decorating to sort out too. Older cottages and farmhouses around Crow's Green can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
Why us?
- We are fully insured
- A choice of colours where the product allows
- One-year guarantee on every job
- Arbo and Everbuild products
Read our cost guide and what customers say.
