Essex · England
Window & door mastic in Crow Green, Essex
Window mastic in Crow Green from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Water coming in at the bottom corners of a door
- Draughty joints inside around the window
- Cold air getting in at the frame edge
Why it’s worth doing now in Crow Green
Failed mastic is not a reason to replace sound windows. If the frames and glass are in good order, resealing the joints is often all that is needed. Problems with the glass or gaskets are for a window company, and we’ll say so. Older cottages and farmhouses around Crow Green can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Ask us for a quote and we will explain what it covers.
What you get with us
- An ARBOMaster approved applicator
- Anti-fungal sanitary silicone in wet areas
- Tidy, careful work
- Every job guaranteed for a year
See how sealant jobs are priced and our reviews.
Window mastic in Crow Green, done properly
A cold draught around a closed window often comes from the frame edge. A new joint stops the air getting through and quietens the whistle on windy days. Where the air is getting in through the window itself, we will say so. If you have water coming in at the bottom corners of a door and a bead that doesn’t match the frame, we can help.
Mastic can only go onto a dry, clean joint, so window work in Crow Green is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
Every job is covered by a one-year guarantee.
- Location
- Crow Green (CM15)
- Wider area
- Essex
- Cover
- A year, on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
When it isn’t the sealant
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Broken hinges, locks or handles
- Rotten timber, which needs a joiner first
- A door that needs adjusting, rehanging or new seals
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly before booking.
Surfaces we seal
- Timber windows & doors
- Composite doors
- Window sills
- uPVC windows
- Patio & French doors
- Aluminium frames
What affects the cost of window mastic
Call for a quick quote. What matters most is:
- Whether there’s mould to deal with
- How many rooms, windows or areas are involved
- The product the joint needs
- Any working-time requirements on site
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
Asking for a quote
To make quoting easier, let us know:
- What’s wrong with the joints now
- How many joints, rooms or windows are involved
- Whether it’s a home or a business
- Pictures of the joints, sent by email
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we’ll explain what’s involved and give you a clear quote.
Nearby places to Crow Green
Also in Crow Green
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Common problems we fix in Crow Green
Every frame moves through the day. Sun on a frame makes it expand, and it contracts again overnight, while the brick or render around it hardly moves. If the sealant can’t stretch, it splits.
Common reasons people contact us are:
- Leaking joints at the ends of sills
- Mastic that has split away from the wall
- Cold air getting in at the frame edge
- Rushed sealant from a window installation
Rented homes near Shenfield station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
Questions to ask before booking
- How the colour is chosen
- What happens if the job turns out different
- What the cure time is
- What the quote includes, VAT included or not
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Look round the frames every year or so
- Avoid harsh chemicals near the mastic
- Don’t paint over the silicone
- Use gentle cleaners on frames and sealant
On timber frames, keep the paintwork in good order, since wood that gets wet swells and shrinks more. Keep paint off the silicone itself.
Signs to watch for: cracks in the mastic, gaps you can see light through, damp on the reveal or mould around the inside of the frame. If you notice one, it’s time to get the joint looked at.
What we do, step by step
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours for a handful of frames, longer for a whole house. Somewhere as small as Crow Green, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each window and door with you.
- We remove the old mastic and clean the frame and the wall.
- We fit backing rod in deep gaps so the sealant is the right depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Every joint is checked before we leave.
Getting ready for the visit
- Move anything stored near the joints
- Let us know if you’ve seen damp or leaks
- Tell us about any previous sealing or DIY attempts
How to get 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’s easy.
Related advice
Window mastic in Crow Green: local notes
Historic houses like Ingatestone Hall (about 4.4 miles east) are a reminder that the area around Crow Green 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. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you look after a building such as Larchwood Primary School, larger buildings have plenty of frames, and the mastic around each one ages. For an older house near a landmark such as Trinity Church, the joint between an old wall and a newer frame is usually the first place rain gets in.
Crow Green is about 2 miles north of Brentwood, in Essex. Jobs in Crow Green get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Our Essex coverage runs to 644 places, Crow Green among them. There’s also a page for Chelmsford, roughly 10 miles from Crow Green.
Jobs for window mastic in CM15 works the same way as everywhere else we cover. Other places close to Crow Green include Pilgrims Hatch (1 mile south), Doddinghurst Common (1 mile north-west), Bentley (1 mile west), Kelvedon Hatch (1 mile north-west) and Coxtie Green (1 mile west). Further out, we also cover Chelmsford (10 miles north-east), Basildon (9 miles south-east), Harlow (11 miles north-west), Canvey Island (15 miles south-east), Billericay (6 miles east) and Rayleigh (14 miles east).
Near you in Crow Green
In Crow Green, that means homes and buildings near Becket Keys Church of England School, Sawyers Hall College and Weald Country Park, among other places. Crow Green’s nearest station is Shenfield station, roughly 2.1 miles south-east. Other landmarks nearby include Brentwood Community Hospital (1.9 miles south-east). Not far away are Thorndon Park.
Crow Green questions
Can you help a landlord with a rental near Shenfield station?
Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
Do you cover smaller places like Crow Green?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Do you seal inside as well as outside?
Yes. Draughts often come through the inside gap too, so it can be worth sealing both.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Can you do upstairs windows?
Usually, yes. We plan safe access before the job, so mention the height and anything in the way.
Is the new sealant paintable?
It depends on the sealant. Some hybrid sealants can be painted; silicone can’t. Mention any painting plans before we start.
What information do you need?
Just the basics: the address or postcode, what’s wrong and any access issues. After that, simply ring 0345 464 0079 or send us an email.
Can I do it myself?
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.