Essex · England
External & façade joints in Broomfield, Essex
Sealing brickwork movement joints, render, cladding and façade joints for homeowners, landlords and businesses in Broomfield. Fully insured, ARBOMaster approved and guaranteed for a year.
- Hard, crazed mastic that has stopped moving
- Failed seals between different materials
- Rain getting behind render or cladding at a joint
Broomfield buildings and the weather
Historic houses like Hylands (about 4.5 miles south) are a reminder that the area around Broomfield has older buildings as well as new. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For an older house near a landmark such as Church of St Mary the Virgin, the joints between older walls, newer extensions and the roofline need a sealant that can move. If you let a flat or house near Beaulieu Park station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Broomfield is about 2 miles north of Chelmsford, in Essex. Every kind of property in Broomfield is covered for external mastic, old or new, large or small. Every job comes with our one-year guarantee. Our Essex coverage runs to 644 places, Broomfield among them.
All of CM1 and CM3 is within our area for external mastic. Streets in the area include Mandeville Way, Court Road and Gernon Close. Other places close to Broomfield include Little Waltham (1 mile north), Minnow End (1 mile north), Breeds (1 mile north-west), Patching (2 miles south) and Great Waltham (2 miles north-west). Larger places within reach include Basildon (14 miles south), Braintree (9 miles north-east), Harlow (15 miles west), Brentwood (12 miles south-west), Maldon (10 miles east) and Billericay (10 miles south).
Landmarks near Broomfield
We work in homes and buildings around The Kings Arms Inn and Broomfield Primary School. For rail, the closest station is Beaulieu Park station, about 2.3 miles south-east. Well-known places in the area include Broomfield Hospital (less than half a mile north-west) and Peter Edwards Museum And Library (2.8 miles south). For a walk, there’s Little Waltham Meadows.
About our external mastic in Broomfield
Getting the depth right is half the job. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, leaving it bonded to two faces so it can move with the wall. We work on façade panels, concrete & block and render & cladding joints, and people most often call us about damp patches traced to an open external joint and leaking joints around cladding and façade panels.
Homes around Broomfield range from older cottages to newer houses, with walls and rooflines of every type. Older homes need their gutter and trim joints kept tight, newer ones their movement joints.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Where
- Broomfield (CM1, CM3)
- Region
- Essex
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Why deal with it now?
Running new sealant over the old bead rarely lasts. New sealant does not bond well to old, weathered sealant, so the old joint is cut out fully first. In a smaller place like Broomfield, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.
Why choose Mr Mastic in Broomfield
- Approved under the ARBOMaster scheme
- We never seal over old sealant
- Experience in homes, commercial sites and hotels
- 180+ five-star Google reviews
Take a look at our cost guide or our reviews.
For landlords 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.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
How the job changes by surface
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it. Send us any details you have about the façade.
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.
When to call us in Broomfield
Sometimes a movement joint was filled with mortar or a rigid filler by mistake. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
It’s worth asking for a quote if you see:
- Leaking joints around cladding and façade panels
- Damp patches traced to an open external joint
- Movement joints filled with mortar instead of sealant
- Brick movement joints where the sealant has split
For site and facilities teams at buildings such as Chelmer Valley High School, larger buildings have long runs of movement joint that eventually need resealing.
What to look for in a quote
- Who turns up on the day
- How the colour is chosen
- How long to leave it before use
- Whether they’re fully insured
Common questions in Broomfield
Do you work for landlords with property near Beaulieu Park station?
Yes, we work for landlords and letting agents. Just ring 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear price.
Do you cover smaller places like Broomfield?
Yes. Broomfield is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you work on commercial sites?
Yes. Larger jobs can be planned room by room or area by area to suit the site.
What does external mastic cost?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We explain the product when we quote.
Will you leave a mess?
Not at all. The area is protected while we work and cleaned up afterwards.
Can you reach joints on upper floors?
Each building is different. Tell us the height, the number of joints and what’s below them, and we will confirm what access is needed.
What is a movement joint?
It’s a deliberate gap that lets the wall expand and contract without cracking. It’s sealed with a flexible sealant, not mortar.
Honest limits
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Render that’s blown, hollow or coming away
- Movement that is more than a sealant joint can take
- Cracks in the bricks or render themselves, away from the joints
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly before booking.
What we seal
- Joints between brick and frames
- Brickwork movement joints
- Façade panels
- Copings & trims
- Concrete & block
- Render & cladding joints
What happens on the day
You don’t need to clear the whole room or building, just the space around the work. Everything nearby is protected, and the job takes a few hours to a few days, depending on the length of joint and the access for a typical job. In a smaller place like Broomfield, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- First, the joints are inspected and the access agreed.
- We cut out the old mastic and rake out anything in the joint.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Before we arrive
- Let us know about stairs, lifts or work at height
- Where the joints are inside, avoid wetting them before we arrive
- For business premises, tell us about site rules or sign-in
How to get a quote
For a quote, ring 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We will send you a clear quote before any work starts.
Related advice
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Should I try it myself first?
If you’ve already had a go yourself, that’s fine. We cut it out and start again.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.