Essex · England
External Mastic in Lamb Corner
External mastic in Lamb Corner from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Rain getting behind render or cladding at a joint
- Movement joints with cracked, split or missing sealant
- Cracked joints where brick meets render or frames
What the job involves on each surface
Concrete and blockwork
Concrete faces can be dusty and porous, so cleaning and priming matter. We prime where the sealant needs it before the bead.
Brickwork movement joints
People sometimes point up a brick movement joint by mistake. If that’s happened, we rake it out and reseal it properly if the joint can be cleared.
How we handle external mastic in Lamb Corner
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. We pick a colour that sits well with the wall so the joint does not stand out. We work on concrete & block, copings & trims and render & cladding joints, and the jobs we see most are gaps where render, brick and frames meet and leaking joints around cladding and façade panels.
Somewhere as small as Lamb Corner, homes and farm buildings often face open ground, where walls and rooflines take the weather head on. Joints on those walls need a sealant that moves with the building and stays in place.
Every job is covered by our 12-month guarantee, wherever you are in Essex.
- Place
- Lamb Corner (CO7)
- Wider area
- Essex
- Cover
- 12 months on all our work
- Price
- A clear price before we start
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Looking after it afterwards
How long the joints last depends on use and care. We suggest:
- Keep movement joints as flexible joints, not mortar
- Walk round the building once a year and look at the joints
- Show decorators and builders where the movement joints are
- Have failed joints looked at early
Have a quick look at the joints each spring. Watch for splits, edges coming away or growth in the joint.
If you can see gaps, plants or bare sections in a joint, have it checked. Earlier resealing means a smaller job and a better result.
Common problems we fix in Lamb Corner
UV, rain and frost all age exterior sealant. Over the years it hardens, cracks on the surface and loses its give, so the next time the wall moves, it splits or pulls away.
The problems people normally mention when they call include:
- Brick movement joints where the sealant has split
- Leaking joints around cladding and façade panels
- Old sealant gone brittle and cracked
- Failed seals between different materials
Schools such as Dedham Church of England Voluntary Controlled Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
What to look for in a quote
- How long the guarantee is
- What the cure time is
- What the quote includes, VAT included or not
- Is the old sealant removed completely?
Places near Lamb Corner
Other services in Lamb Corner
Work for landlords, hotels and businesses
For anyone letting property in or around Lamb Corner, several properties can go on one quote. Send us the addresses and the work at each.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
External mastic in Lamb Corner: local notes
With historic houses such as Castle House (about 0.9 miles east) nearby, there’s older building stock in the area around Lamb Corner as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material. 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.
For an older house near a landmark such as Parish Church of St Mary, old and new materials meet at the roofline and walls, which is where sealant earns its keep. Rented homes near Manningtree station change hands often, and split movement joints are easy to miss on a rental until damp shows inside.
Lamb Corner is about 5 miles north-east of Colchester, in Essex. We carry out external mastic for householders, landlords and businesses in Lamb Corner and nearby. Lamb Corner is one of 644 towns and villages in Essex where we work for external mastic. For nearby work, see our Chelmsford page, about 25 miles away.
We cover every part of CO7 for external mastic. Whether your property is on Grove Hill, Monk's Lane and Birchwood Road or anywhere close by, our applicators can take on the job. Other places close to Lamb Corner include Dedham Heath (1 mile east), Ardleigh Heath (1 mile south), Dedham (1 mile north-east), Ardleigh (2 miles south) and Hornestreet (2 miles west). Larger places within reach include Colchester (5 miles south-west), Clacton-on-Sea (13 miles south-east), Harwich (12 miles east), Camulodunum (6 miles south-west), Halstead (14 miles west) and Greenstead (4 miles south-west).
Near you in Lamb Corner
Typical jobs here are in homes near The Anchor Inn, among other places. Lamb Corner’s nearest station is Manningtree station, roughly 2.9 miles east of the centre. Other landmarks nearby include The Munnings Museum (0.9 miles east) and Severalls Hospital (4 miles south-west). Open spaces near Lamb Corner include Cattawade Marshes.
Why deal with it now?
Pointing a movement joint with mortar might seem a neat fix, but it locks the joint solid. The wall then cracks somewhere else. The correct repair is a flexible sealant with the right backing. Where a wall is exposed, as many are in small places like Lamb Corner, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
The cost depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before work begins.
Why us?
- A 12-month guarantee on all work
- Quality sealants from Arbo and Everbuild
- A choice of colours where the product allows
- We agree the colour with you first
Read what affects the cost or our reviews.
What happens on the day
At the end, we look at the finished work together and explain the cure time. The work normally takes a few hours for a handful of joints, longer for a whole elevation, depending on how much there is to do. Somewhere like Lamb Corner 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.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
Getting ready for the visit
- Mention if the joints have been sealed before
- On commercial sites, let us know about site rules
- Mention any parking rules near the property
Get a quote
For external mastic in Lamb Corner, phone 0345 464 0079 or email us. Tell us what the problem is and where, and you’ll get a clear quote before any work starts.
Advice
Honest limits
In fairness, there are a few things sealant will not fix:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Damp that is not coming from the joint
- Subsidence or other structural problems
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly before booking.
Where we work in Lamb Corner
- Façade panels
- Joints between brick and frames
- Render & cladding joints
- Copings & trims
- Brickwork movement joints
- Concrete & block
Your questions about external mastic in Lamb Corner
Can you do external mastic in Lamb Corner?
Yes, Lamb Corner is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or email us and let us know what needs doing, and we’ll send you a clear quote.
Do you cover smaller places like Lamb Corner?
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.
Do you remove the old sealant?
Yes. We cut out all the old sealant and clean the joint.
Is there a guarantee?
Yes. There’s a 12-month guarantee on every job.
Can tenants book the work?
Yes. Ask your landlord first, and we can send them the quote if that helps.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
What do you need from me for a quote?
Just the basics: the address or postcode, what’s wrong and any access issues. Then call 0345 464 0079 or drop us an email.
Should I try DIY first?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it does not work out, we can redo it.