Essex · England
External & façade joints in Swallows Cross, Essex
Professional external mastic in and around Swallows Cross, with old sealant always removed completely and a 12-month guarantee.
- Gaps where render, brick and frames meet
- Rain getting behind render or cladding at a joint
- Weathered mastic that no longer stretches
External mastic in Swallows Cross, done properly
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. 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 failed sealant between panels on a façade, we can help, on copings & trims, brickwork movement joints and render & cladding joints alike.
In a village or hamlet like Swallows Cross, older cottages and farm buildings often stand in the open, 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.
All our work comes with our one-year guarantee, wherever you are in Essex.

- Location
- Swallows Cross (CM15)
- Wider area
- Essex
- Cover
- One year on every job
- Price
- A clear price before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What the job involves on each surface
Copings and trims
Joints in copings, parapets and trims are exposed to the worst of the weather. We reseal them with an exterior sealant suited to the material.
Cladding and façade panels
Cladding and façade panels are usually separated by sealed joints. We reseal them with a sealant suited to the panel material.
How it works
Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, do the work and tidy away. It usually takes a few hours to a few days, depending on the length of joint and the access. Somewhere as small as Swallows Cross, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
How to prepare
- Let us know about parking restrictions
- On commercial sites, let us know about site rules
- Keep children and pets away from the work area
Ask for a quote
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we will talk you through the work and give you a clear price.
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Places near Swallows Cross
What else we do in Swallows Cross
What we’re called out for in Swallows Cross
UV, rain and frost all age exterior sealant. Over the years it hardens, cracks on the surface and loses its give, so the joint eventually tears or comes away from one side.
It’s worth asking for a quote if you see:
- Brick movement joints where the sealant has split
- Old sealant gone brittle and cracked
- Panel joints letting water in
- Plants rooting in failed movement joints
Historic houses such as Ingatestone Hall, about 2.5 miles east, show how far back building around Swallows Cross goes, and older homes nearby need a sealant that suits their walls.
What your quote should include
- What insurance they hold
- Which colour the sealant will be
- What the cure time is
- Is VAT in the price?
Why deal with it now?
Running new sealant over the old bead rarely lasts. New sealant doesn’t bond well to old, weathered sealant, so the old joint is cut out fully first. Where a wall is exposed, as many are in small places like Swallows Cross, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we will go through it with you.
Why choose Mr Mastic in Swallows Cross
- We leave the area clean and tidy
- White, clear, grey or coloured to suit, where the product allows
- A 12-month guarantee on all work
- We agree the colour with you first
Take a look at what affects the cost or customer reviews.
Outside joints around Swallows Cross
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Ingatestone Hall (about 2.5 miles east) nearby, there’s older building stock in the area around Swallows Cross as well as newer homes. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth.
If you look after a building such as Shenfield High School, larger buildings have long runs of movement joint that eventually need resealing. Rented homes near Ingatestone station change hands often, and split movement joints are easy to miss on a rental until damp shows inside.
Swallows Cross is about 3 miles north-east of Brentwood, in Essex. Whether you are in the middle of Swallows Cross or further out, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Across Essex, we cover 644 places, Swallows Cross among them. You can also see our page for Chelmsford, about 8 miles away.
All of CM15 is within our area for external mastic. Whether your property is on Thoby Lane and Wyatt's Green Road or a nearby road, our applicators can take on the job. Other places close to Swallows Cross include Wyatt's Green (1 mile north-west), Green Street (1 mile north-east), Mountnessing (1 mile south-east), Doddinghurst (1 mile west) and Beggar Hill (2 miles north-east). Further out, we also cover Chelmsford (8 miles north-east), Basildon (8 miles south-east), Harlow (12 miles north-west), Brentwood (3 miles south-west), Canvey Island (15 miles south-east) and Billericay (5 miles south-east).
Landmarks near Swallows Cross
The closest station to Swallows Cross is Ingatestone station, about 2.3 miles east of the centre. Well-known places in the area include Brentwood Community Hospital (2.9 miles south). The countryside around Swallows Cross includes Thorndon Park.
What affects the cost of external mastic
We do not publish a price list, because jobs vary so much. What we look at:
- How much old sealant there is and how hard it is to remove
- How easy the joints are to reach
- The number and length of the joints
- The type of sealant required
The cost reflects the work involved, not guesswork. That’s why we ask about the job first.
Asking for a quote
Photos help, but a description is a good start. Try to tell us:
- Any previous sealing or DIY work
- Where the job is, and your postcode
- The rough size of the job
- Pictures of the joints, sent by email
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job.
Questions from Swallows Cross
Can you do external mastic in Swallows Cross?
Yes, Swallows Cross is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or send us an email and tell us what needs doing, and we will give you a clear quote.
Do you cover smaller places like Swallows Cross?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
What does external mastic cost?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. You’ll get a clear quote before we start.
When is the sealant fully cured?
Many sealants skin over quickly but take longer to cure fully. We will give you the cure time for the product we used before we leave.
Is it OK to fill a movement joint with cement?
No. Mortar locks the joint solid, so the wall cracks somewhere else instead. It needs a flexible sealant over backing rod.
Do you hold any approvals?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
What’s an expansion joint in brickwork?
A vertical gap in a long brick wall is generally a movement joint. It lets the bricks expand without cracking.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. We can talk about working times when we quote.
DIY versus a professional finish
If you’re 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.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Landlords, agents and businesses in Swallows Cross
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can be quoted together.
