Essex · England
Crow's Green External Mastic
External mastic for Crow's Green and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Brick movement joints where the sealant has split
- Water getting into walls through failed joints
- Weathered mastic that no longer stretches
About our external mastic in Crow's Green
Joints in render and cladding are easy to overlook until a damp patch appears. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant in a colour to suit. Typical jobs include joints with sealant missing in places and leaking joints around cladding and façade panels, across brickwork movement joints, concrete & block and copings & trims.
Somewhere as small as Crow's Green, homes and farm buildings often face open ground, so walls and rooflines take the full force of wind and rain. Gutter joints and wall joints there need a sealant that can flex and stay put.
A 12-month guarantee comes as standard, so you’re not left on your own once the job is done.
- Place
- Crow's Green (CM7)
- Region
- Essex
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Walls and rooflines in Crow's Green
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to Church of St James include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Crow's Green is about 5 miles west of Braintree, in Essex. Jobs in Crow's Green get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Our Essex coverage runs to 644 places, Crow's Green among them. Our Chelmsford page covers work nearby, about 12 miles away.
All of CM7 is within our area for external mastic, from the main roads to the quietest streets. Other places close to Crow's Green 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). Further out, we also cover 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).
Landmarks near Crow's Green
In Crow's Green, that means homes and buildings near The White Hart Inn and the streets around them. For rail, the closest station is Braintree station, about 4.7 miles south-east of the centre. A little further out are Braintree Community Hospital (3.9 miles south-east).
How we quote for external mastic
For a quick quote, just ask. The main things that affect it are:
- Which sealant suits the joint
- How many areas need sealing
- Mould in or behind the old joints
- The number and length of the joints
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What we need to know
To make quoting easier, let us know:
- Where the property is
- If it’s domestic, commercial or a hotel
- If someone has resealed it before
- Access, such as stairs, a lift or height
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 add photos by email if you can.
Why deal with it now?
Water gets in through a failed movement joint, behind render and cladding. Resealing early keeps the job to the joint itself, rather than the wall around it. Around Crow's Green, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
What it costs depends on the amount of work, how much old material has to come out and access to the work. We give a clear quote before we start, so you know where you stand.
Why Crow's Green clients choose us
- Domestic, commercial and hotel work
- A sealant colour to suit the surroundings
- White, clear, grey or coloured to suit, where the product allows
- We never seal over old sealant
Read what affects the cost or what customers say.
Signs you need external mastic in Crow's Green
Weeds, moss and debris in a joint are a sign the sealant has gone. Dirt and roots then trap moisture in the joint and make things worse.
These are the problems we’re asked about most:
- Gaps where render, brick and frames meet
- Weeds or debris growing in open joints
- Joints pointed up with cement by mistake
- Damp patches traced to an open external joint
For landlords with property near Braintree station, split movement joints are easy to miss on a rental until damp shows inside.
Before you book anyone
- Whether VAT is included
- Who turns up on the day
- Whether the sealant suits the joint
- Whether they’re fully insured
The process
All our tools and materials come with us in the van, so you don’t need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. It normally takes a few hours to a few days, depending on the length of joint and the access. Somewhere like Crow's Green 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 walking round the building and agreeing the joints and the access.
- Every bit of old sealant and any mortar or debris is cut out.
- Joint faces are cleaned back and primed if the sealant needs it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Before we arrive
- For business premises, tell us about site rules or sign-in
- Try not to wet indoor joints just before the visit
- Mention any tricky access
Getting a quote
Getting a quote is simple: let us know what needs doing and where. Photos by email help us understand the job, and we will take it from there.
Related advice
Towns and villages near Crow's Green
More services for Crow's Green
Landlord and commercial work in Crow's Green
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
What sealant work can’t fix
We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Subsidence or other structural problems
- Rising or penetrating damp from elsewhere in the wall
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly before booking.
Joints and surfaces we work on
- Concrete & block
- Copings & trims
- Render & cladding joints
- Façade panels
- Brickwork movement joints
- Joints between brick and frames
Different surfaces, different methods
Joints between dissimilar materials
Brick against render, concrete against metal, stone against timber: every change of material is a joint. We seal the joint with a flexible exterior sealant so the movement is taken up.
Concrete and blockwork
Big joints in concrete need careful depth control. Backing rod sized to the joint sets it so the sealant isn’t too deep.
Crow's Green: your questions answered
Is Crow's Green in your area for external mastic?
Yes, Crow's Green is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or email us with a few details of the job, and we will send you a clear quote.
Do you work for landlords with property near Braintree station?
Yes, landlords and agents are among the people we work for. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we will send you a clear quote.
Which products do you use?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we will tell you what we are using.
Can you match the colour of my brickwork?
The sealant colour is picked to suit the wall so the joint blends in. Exterior sealants come in a good range of colours.
Why is there a gap in my brick wall?
Walls move with heat, cold and moisture, and planned joints take up that movement. The gap is sealed with a flexible sealant over backing rod.
Will you leave a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Can you quote for more than one area?
Yes. Several rooms, windows or areas can go on one quote.
How long does the job take?
As a guide, most jobs take a few hours for a handful of joints, longer for a whole elevation. Larger jobs naturally take longer, and we’ll say how long yours will take.