Essex · England
Stebbing External Mastic
External mastic across Stebbing and nearby, with old sealant always removed completely and a 12-month guarantee.
- Panel joints letting water in
- Damp patches traced to an open external joint
- Moss and dirt in joints with no sealant left
About our external mastic in Stebbing
Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant. We work on brickwork movement joints, copings & trims and concrete & block, and the jobs we see most are joints pointed up with cement by mistake and rain getting behind render or cladding at a joint.
External sealant needs dry, clean surfaces, so work around Stebbing is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.
Every job comes with a 12-month guarantee.

- Place
- Stebbing (CM6)
- Region
- Essex
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What sealant work can’t fix
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Cracking across the wall rather than at a joint
- Structural movement, which needs a surveyor or engineer
- Rising or penetrating damp from elsewhere in the wall
If in doubt, call 0345 464 0079 or email us and we’ll say what we think before booking.
Where we work in Stebbing
- Copings & trims
- Brickwork movement joints
- Render & cladding joints
- Façade panels
- Concrete & block
- Joints between brick and frames
Keeping the joints in good condition
How long the joints last depends on use and care. Here’s what we suggest:
- Check the sealant is paintable before painting near it
- Keep movement joints as flexible joints, not mortar
- Check external joints each spring
- Avoid pressure-washing directly into sealant joints
Look over the joints once a year, ideally after winter. Watch for splits, edges coming away or growth in the joint.
Small splits are the time to act. At that stage it’s a simple cut out and reseal before water has had years to get in.
What we do, step by step
We keep the work tidy and contained to the joints we’re treating, so you can get on with your day. Expect the work to take anything from a few hours to several days, depending on the building, and we explain the cure time before we leave. Somewhere as small as Stebbing, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at every joint and agree a colour to suit the wall.
- 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.
Preparing for the visit
- For indoor joints, keep the area dry beforehand if you can
- Clear items away from the joints we are working on
- Let us know about stairs, lifts or work at height
Getting a quote
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we will explain what’s involved before giving you a price.
Read more
When to call us in Stebbing
Buildings move more than people expect. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. The sealant in the movement joints takes that strain.
Most people get in touch after spotting one of these:
- Sealant pulling away from one side of the joint
- Water getting into walls through failed joints
- Joints pointed up with cement by mistake
- Weathered mastic that no longer stretches
Schools such as Stebbing Primary School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s.
Questions to ask before booking
- How much experience the applicator has
- The length of the guarantee
- When the joint can take water or movement
- How hidden problems are handled
Should I try it myself first?
If you are 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 doesn’t work out, we can still put it right.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Different surfaces, different methods
Brickwork movement joints
Vertical joints in long brick walls let the brickwork expand without cracking. We reseal them with a low-modulus sealant over backing rod in a colour to suit the brick.
Joints between dissimilar materials
Wherever two materials meet, they move differently. We seal the joint with a flexible exterior sealant.
Landlord and commercial work in Stebbing
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will quote.
We work for landlords and agents as well as homeowners. Resealing between tenancies keeps a property looking cared for before the next move-in.
Nearby places to Stebbing
Other services in Stebbing
Walls and rooflines in Stebbing
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to United Reformed Church include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move.
Stebbing is about 6 miles west of Braintree, in Essex. Jobs in Stebbing get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Stebbing is one of 644 towns and villages in Essex we cover. Chelmsford is on our list too, around 11 miles away.
Here we cover the CM6 postcode area for external mastic. External mastic is available to properties on High Street, Ploughmans Way and Mount Fields and the roads around them. We also cover Brookstreet (2 miles south), Little Dunmow (2 miles south), Blake End (3 miles south-east), Felsted (3 miles south) and Watch House Green (3 miles south-east). Within a short drive, we also cover Chelmsford (11 miles south), Braintree (6 miles east), Harlow (15 miles south-west), Witham (12 miles south-east), Saffron Walden (11 miles north-west) and Halstead (10 miles east).
Landmarks near Stebbing
We work in homes and buildings around White Hart pub and Putteridge High School and the streets around them. Well-known places in the area include Little Easton Moat (3.5 miles west) and Braintree Community Hospital (5.5 miles east).
FAQs for Stebbing
Can you do external mastic in Stebbing?
Yes, Stebbing is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or email us with a few details of the job, and we will give you a clear quote.
What guarantee comes with external mastic in Stebbing?
All our work, in Stebbing and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
How long should I leave it?
Most sealants are touch-dry well before they’re fully cured. We’ll give you the cure time for the product we used.
Is there any odour?
Some sealants have a smell while they cure, which fades as it sets. Opening a window helps.
Can new sealant go over the old?
No. The old sealant always comes out first.
Can landlords and businesses book you?
Yes, we do. We work in homes, commercial premises and hotels.
Do you remove the old sealant?
Yes. We cut out all the old sealant and clean the joint before resealing.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you do not need to watch us work.
