Essex · England
External Mastic in Magdalen Laver
Sealing brickwork movement joints, render, cladding and façade joints for Magdalen Laver, backed by a 12-month guarantee. Ask us for a quote.
- Cracked joints where brick meets render or frames
- Brick movement joints where the sealant has split
- Plants rooting in failed movement joints
External mastic in Magdalen Laver
Low-level joints can generally be done from the ground. Where joints are higher up, tell us about the building when you get in touch and we will confirm what access is needed. We work on joints between brick and frames, render & cladding joints and copings & trims, and people most often call us about failed seals between different materials and water getting into walls through failed joints.
Somewhere as small as Magdalen Laver, 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.
We stand behind the work with a one-year guarantee.
- Where
- Magdalen Laver (CM5)
- Wider area
- Essex
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before we start
- Call
- 0345 464 0079
- Page updated
- 26 October 2026

Walls and rooflines in Magdalen Laver
Compared with the north and west, the South East gets less rain, 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 Parish Church of St Mary Magdalen, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Magdalen Laver is about 3 miles east of Harlow, in Essex. If you need external mastic in Magdalen Laver, please phone 0345 464 0079 or drop us an email for a quick quote. We’re based in Crawley and cover Essex, Magdalen Laver included. Our area takes in 644 places across Essex. For nearby work, see our Chelmsford page.
Work in CM5 is quoted and booked the same way as anywhere else. Other places close to Magdalen Laver include Loyter's Green (1 mile north), Foster Street (1 mile west), Hastingwood (1 mile west), Housham Tye (2 miles north) and Matching Tye (2 miles north). We also work in nearby towns such as Chelmsford (13 miles east), Harlow (3 miles west), Brentwood (10 miles south-east), Billericay (13 miles south-east), Loughton (9 miles south-west) and Waltham Abbey (9 miles south-west).
Around Magdalen Laver
Around Magdalen Laver, our work takes us to homes and buildings near The Green Man Public House. For rail, the closest station is Harlow Mill station, roughly 3.4 miles north-west of the centre. A little further out are Harlow Mill (3.6 miles north-west) and Mark Hall Cycle Museum (3.2 miles north-west). The countryside around Magdalen Laver includes Gernon Bushes.
What we cannot put right
We won’t take on work that will not last, so these are the limits:
- Failed render or damaged cladding panels
- Movement that’s more than a sealant joint can take
- Walls that need new movement joints cut into them
If you are not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer before you book.
Where we work in Magdalen Laver
- Copings & trims
- Render & cladding joints
- Joints between brick and frames
- Façade panels
- Concrete & block
- Brickwork movement joints
How to look after the new joints
To keep the joints looking good and working properly:
- Keep high-pressure jets off the joints
- Never let anyone fill a movement joint with mortar
- Do not let climbing plants root in the sealant
- Check external joints each spring
Keep the joints clear of soil, plants and climbing growth. Anything that holds water against the joint wears it out sooner.
Act while the splits are small. At that stage it’s a simple cut out and reseal before water has had years to get in.
How we quote for external mastic
There’s no set price list. The quote depends on:
- The old material and how stubborn it is
- Whether the work is at height
- The number of rooms or windows
- Any mould that needs treating
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
What we need to know
There’s no need for technical detail. Just tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- Whether it’s a home or a business
- A few pictures by email, if you can
- Where the job is, and your postcode
Every job is quoted individually. Simply call 0345 464 0079 or drop us an email and describe the job and send photos if you have them.
Surface by surface
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.
Render joints
The face of render can be soft, so a low-modulus sealant is kinder to the joint edges. Priming is done where the sealant calls for it.
Signs you need external mastic in Magdalen Laver
Using the wrong sealant is another common reason. A high-modulus or general-purpose sealant can be too rigid for a busy joint, so it pulls away from the edges.
Most people get in touch when they notice something like this:
- Cracked joints where brick meets render or frames
- Brick movement joints where the sealant has split
- Water getting into walls through failed joints
- Hard, crazed mastic that has stopped moving
Letting a property close to Harlow Mill station? Then split movement joints are easy to miss on a rental until damp shows inside.
Comparing quotes
- What guarantee comes with the work
- Whether they seal over old material or remove it
- What product goes in the joint
- Whether you can choose the colour
Your questions about external mastic in Magdalen Laver
Do you work for landlords with property near Harlow Mill station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or send us an email and tell us about the property, and we will send you a clear quote.
Do you cover Magdalen Laver for external mastic?
Yes, Magdalen Laver is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or send us an email and tell us what needs doing.
Can I do it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Do you do commercial work?
Yes. We have worked for hotels, offices and other businesses, and we’re fully insured.
What is a movement joint?
A vertical gap in a long brick wall is usually a movement joint. It gives the wall room to move, and it should be sealed with a flexible sealant.
Does someone need to be in?
If the work is inside, we need someone to let us in. Once we have agreed the job, you don’t need to watch us work.
Will the new joint stand out?
The sealant colour is picked to suit the wall. There’s a wide choice of exterior colours.
Landlord and commercial work in Magdalen Laver
For anyone letting property in or around Magdalen Laver, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and photos by email help.
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
What happens on the day
A visit follows a simple pattern: we look at the joints together, protect the area around them, carry out the job and tidy away. Most jobs take anything from a few hours to several days, depending on the building. For a village or hamlet like Magdalen Laver, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Getting ready for the visit
- On commercial sites, let us know about site rules
- Move anything stored near the joints
- Let us know about earlier repairs to the joints
How to get a quote
Need a quote? Please ring 0345 464 0079 or send us an email and tell us about the job. We will explain what we’d do and give you a clear quote before work begins.
