Essex · England
Watch House Green External Mastic
External mastic across Watch House Green and nearby, with old sealant always removed completely and a 12-month guarantee.
- Brick movement joints where the sealant has split
- Rigid filler in a joint that should flex
- Plants rooting in failed movement joints
About our external mastic in Watch House Green
We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. The colour is chosen to suit the brick or render so the line blends in. If you have joints where the bead has come unstuck and rigid filler in a joint that should flex, we can help, whatever the surface.
Around Watch House Green, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points.
We guarantee the work for a year. If something is not right with it in that time, tell us and we will put it right.
- Place
- Watch House Green (CM6)
- Wider area
- Essex
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Watch House Green questions
Will you come out to Watch House Green?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you do external mastic in Watch House Green?
Yes. We work across London and the South East, and Watch House Green is part of that. Just call 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear quote.
Which products do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Why is there a gap in my brick wall?
Brickwork, render and cladding all move a little, and planned joints take up that movement. It’s closed with backing rod and a flexible sealant.
How long does the job take?
That depends on the amount of work, but as a guide it takes a few hours for a handful of joints, longer for a whole elevation. We will tell you when we quote.
Can you seal over the old sealant?
No. New silicone will not bond to old silicone, and it traps any mould or water underneath. It all has to come out first.
Do you work for letting agents?
Yes. We work for homeowners, landlords, letting agents, businesses and hotels in Watch House Green.
Do you guarantee your work?
Yes: twelve months. If there’s a problem with our work in that time, tell us and we’ll put it right.
Places near Watch House Green
Also in Watch House Green
What affects the cost of external mastic
We do not publish a price list, because jobs vary so much. The quote depends on:
- Any mould that needs treating
- Which sealant suits the joint
- Any working-time requirements on site
- How many areas need sealing
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. You will know the price before we begin.
Helping us quote
There’s no need for technical detail. Just tell us:
- Whether it’s a home or a business
- What the problem is, such as mould, gaps, leaks or cracking
- How we’d reach the joints
- Whether it has been sealed before
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. When it suits you, phone 0345 464 0079 or drop us an email.
Walls and rooflines in Watch House Green
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you let a flat or house near Braintree station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. Homes close to Church of the Holy Cross include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant.
Watch House Green is about 5 miles west of Braintree, in Essex. Homes, rented property, offices and hotels in Watch House Green can book us for external mastic, old or new, large or small. Every job comes with our 12-month guarantee. Watch House Green is one of 644 places in Essex where we work. We also work in Chelmsford, about 9 miles from Watch House Green.
Every address in CM6 is within our area for external mastic, from the main roads to the quietest streets. You’ll find streets such as Watch House Green, Ravens Crescent and Oxney Villas. If you are just outside Watch House Green, we cover Bannister Green (1 mile south-east), Felsted (1 mile south-west), Causeway End (1 mile south-west), Blake End (1 mile north-east) and Little Dunmow (2 miles west). Larger places within reach include Chelmsford (9 miles south), Braintree (5 miles east), Maldon (13 miles south-east), Witham (9 miles south-east), Saffron Walden (14 miles north-west) and Halstead (10 miles north-east).
Around Watch House Green
We work in homes and buildings around The Three Horseshoes pub and the streets around them. The closest station to Watch House Green is Braintree station, roughly 4.5 miles east. Other landmarks nearby include Braintree Community Hospital (3.8 miles east). Not far away are Phyllis Currie Nature Reserve.
When it isn’t the sealant
We’ll always be straight with you, so here’s what new sealant won’t do:
- Damp that isn’t coming from the joint
- Walls that need new movement joints cut into them
- Structural movement, which needs a surveyor or engineer
If you’re not sure, just phone 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Where we work in Watch House Green
- Concrete & block
- Brickwork movement joints
- Copings & trims
- Joints between brick and frames
- Render & cladding joints
- Façade panels
Common problems we fix in Watch House Green
If plants are growing out of a joint, the sealant has normally failed or was never there. Dirt and roots then trap moisture in the joint and speed up the damage.
Signs it’s time to call us include:
- Movement joints with cracked, split or missing sealant
- Rain getting behind render or cladding at a joint
- Rigid filler in a joint that should flex
- Weathered mastic that no longer stretches
Managing a site like Felsted Primary School? Then its movement joints, gutters and trims need looking after like any other building’s.
What to look for in a quote
- Whether you can choose the colour
- Which sealant they’ll use, and why
- The length of the guarantee
- What insurance they hold
What the job involves on each surface
Concrete and blockwork
Wide joints in concrete need the depth controlling carefully. Backing rod sized to the joint sets it.
Joints between dissimilar materials
Where a frame or panel meets masonry, water often finds a way in. We cut out the old sealant and reseal with a product suited to both surfaces.
Landlords, agents and businesses in Watch House 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.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
The process
The work is kept neat and contained to the area we are working on, so you can get on with your day. The job usually takes a few hours to a few days, depending on the length of joint and the access, and we tell you how long to leave it before we go. Somewhere like Watch House 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.
- First, the joints are inspected and the access agreed.
- 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.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Preparing for the visit
- For business premises, tell us about site rules or sign-in
- Tell us about access, such as stairs, a lift or high-level joints
- Clear items away from the joints we’re working on
Ask for a quote
There’s no standard price list, because every job is different. Instead, we send you a clear quote for your job. To arrange one, phone 0345 464 0079 or send us an email.
Advice
Leave it or put it right?
Running new sealant over the old bead rarely lasts. The new layer cannot bond properly to old, weathered material, so the old joint is cut out fully first. In a small place like Watch House Green, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we’ll explain the quote if you ask.
What you get with us
- Experience in homes, commercial sites and hotels
- Old sealant always removed completely
- We leave the area clean and tidy
- Quality sealants from Arbo and Everbuild
Take a look at what affects the cost and what customers say.