Essex · England
External Mastic in Sewards End
Movement joints in Sewards End need attention? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.
- Water getting into walls through failed joints
- Gaps where render, brick and frames meet
- Joints with sealant missing in places
What external mastic looks like in Sewards End
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Audley End House (about 2.7 miles west) nearby, there’s older building stock in the area around Sewards End 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.
Rented homes near Audley End station change hands often, and split movement joints are easy to miss on a rental until damp shows inside. If you live in an older home near St James' Church, the joints between older walls, newer extensions and the roofline need a sealant that can move. Managing a site like Saffron Walden County High School? Then its movement joints, gutters and trims need looking after like any other building’s.
Sewards End is about 2 miles east of Saffron Walden, in Essex. Sewards End gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Sewards End is one of 644 places in Essex we cover. There’s also a page for Chelmsford, about 21 miles away.
Every address in CB10 is covered for external mastic, from the main roads to the quietest streets. That includes homes and businesses on Walden Road, Tylers and Radwinter Road and the roads around them. Other places close to Sewards End include Cole End (1 mile south), Saffron Walden (2 miles west), Little Walden (3 miles north-west), Audley End (3 miles west) and Littlebury (3 miles west). Further out, we also cover Braintree (15 miles south-east), Great Dunmow (11 miles south), Stansted Mountfitchet (9 miles south-west), Great Notley (15 miles south-east), Bocking (15 miles south-east) and Elsenham (8 miles south).
Local landmarks in Sewards End
Sewards End’s nearest station is Audley End station, roughly 3.5 miles west. Other landmarks nearby include Saffron Walden Museum (1.9 miles west) and Saffron Walden Community Hospital (1.2 miles west). Not far away are Hales and Shadwell Woods.
External mastic in Sewards End, done properly
For buildings in Sewards End, we reseal external joints of all kinds, from brick movement joints to cladding panels. Every joint gets the same careful preparation: clean, sound faces and a controlled depth. We work on brickwork movement joints, copings & trims and concrete & block, and people most often call us about rigid filler in a joint that should flex and damp patches traced to an open external joint.
External sealant needs dry, clean surfaces, so work around Sewards End is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.
You are covered for a year from the day we finish. If there’s a problem with it, please ring 0345 464 0079 or email us.
- Location
- Sewards End (CB10)
- Region
- Essex
- Cover
- 12 months on all our work
- Quotes
- A clear price before work begins
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
How we quote for external mastic
We quote each job individually. These are the things that affect it:
- Mould in or behind the old joints
- Whether the work is at height
- When we can work, for business premises
- The size of the job
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.
What to tell us for a quote
To make quoting easier, please include:
- Access, such as stairs, a lift or height
- Where the property is
- Photos by email, if that is easy
- Any previous sealing or DIY work
Want a quote for external mastic? Please phone 0345 464 0079 or send us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Also near Sewards End
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Can I do it myself?
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Walk round the building once a year and look at the joints
- Don’t let climbing plants root in the sealant
- Show decorators and builders where the movement joints are
- Never let anyone fill a movement joint with mortar
Have a quick look at the joints each spring. Watch for splits, edges coming away or growth in the joint.
Once a joint cannot move, the wall finds another way, often as cracks near the joint. Resealing it early helps prevent that.
Questions from Sewards End
Will you come out to Sewards End?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you cover Sewards End for external mastic?
Yes. We work across London and the South East, and Sewards End is part of that. You can call 0345 464 0079 or send us an email and tell us what needs doing, and we’ll give you a clear quote.
Is it OK to seal over old sealant?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
I’m a tenant. Can you help?
We can work for tenants, landlords or agents. Just make sure your landlord agrees.
Can a movement joint be filled with mortar?
No. Mortar locks the joint solid, so the movement cracks the wall elsewhere. It needs a flexible sealant over backing rod.
Can you seal joints between two different materials?
Yes. Where different materials meet is one of the most common joints we seal. We use a flexible sealant suited to both surfaces, primed where needed.
How often do external joints need resealing?
That varies with the weather the wall faces, how much it moves and the sealant used. Sealant is a maintenance item, so check the joints once a year and reseal when it splits.
Are you insured?
Yes, we’re fully insured for every job we do.
How the job changes by surface
Render joints
Rendered walls have joints at beads, openings and changes of material. They’re resealed in a sealant that suits the render.
Brickwork movement joints
Clay brickwork grows slightly over its life and moves with the weather. The movement joint takes that up, so the sealant in it must stay soft and stretchy.
The process
The work is kept neat and contained to the area we’re working on, so you can carry on as normal. The job generally takes a few hours to a few days, depending on the length of joint and the access, and we explain the cure time before we leave. For a village or hamlet like Sewards End, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- The old mastic and anything lodged in the joint is removed.
- We clean both faces of the joint and prime them where the product calls for it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
How to prepare
- Tell us if parking is tricky
- Clear the area around the work
- Try not to wet indoor joints just before the visit
Getting a quote
To get a quote, phone 0345 464 0079 or email us with the location and a short description of the problem. We will give you a clear price before any work starts.
Advice
For landlords and businesses
For anyone letting property in or around Sewards End, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and pictures by email help.
In hotels, rooms out of use cost money, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.
Why it’s worth doing now in Sewards End
A failed movement joint lets water into the wall. Dealing with it early keeps the repair to the joint, rather than the wall around it. Where a wall is exposed, as many are in small places like Sewards End, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
What you get with us
- Colour picked to suit the job
- 4.9 on Google from 180+ five-star reviews
- Any old sealant cut out fully, not covered over
- Approved under the ARBOMaster scheme
Take a look at our cost guide or what customers say.