Essex · England
External Mastic in Berners Roding
Specialist external mastic for Berners Roding: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Sealant pulling away from one side of the joint
- Movement joints filled with mortar instead of sealant
- Rain getting behind render or cladding at a joint
About our external mastic in Berners Roding
A movement joint is only as good as its depth. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, leaving it bonded to two faces so it can move with the wall. We work on joints between brick and frames, concrete & block and façade panels, and people most often call us about damp patches traced to an open external joint and panel joints letting water in.
Somewhere as small as Berners Roding, 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.
You are covered for a year from the day we finish. If anything isn’t right with it, phone 0345 464 0079 or email us.
- Place
- Berners Roding (CM5)
- Region
- Essex
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
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.
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it or an approved alternative. Tell us what the building has when you get in touch.
What happens if it’s left?
Mortar or ordinary filler might look like a quick way to close an open joint, but it locks the joint solid. The movement then cracks the brickwork or render nearby. The correct repair is a flexible sealant with the right backing. In a small place like Berners Roding, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
What it costs depends on the amount of work, how much old material has to come out and access to the work. You will have a clear quote before any work starts, so you know where you stand.
Why Berners Roding customers choose us
- Sealant colour chosen to suit
- Experience in homes, commercial sites and hotels
- Sanitary silicone with an anti-fungal additive in wet areas
- A 12-month guarantee on all work
Take a look at our cost guide and what customers say.
Berners Roding questions
What guarantee comes with external mastic in Berners Roding?
All our work, in Berners Roding and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
Can you do external mastic in Berners Roding?
Yes. We work across London and the South East, and Berners Roding is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear quote.
Is there any odour?
Sometimes, a little. Any smell clears as the sealant cures.
What do you need from me for a quote?
Just the basics: the address or postcode, what’s wrong and any access issues. After that, simply phone 0345 464 0079 or email us.
What does external mastic cost?
Size, access and the old material all affect the cost. Ask us for a quote and we’ll talk you through it.
Where do you work from?
We’re a Crawley-based firm. Our area covers South East England, London and Scotland.
Do you remove the old sealant?
Yes. We cut out all the old sealant and clean the joint before resealing.
Will the new joint stand out?
There’s a good range of exterior colours, including greys, browns, whites and stone tones. We choose the closest to your brick or render so the joint does not draw the eye.
How it works
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a few hours for a handful of joints, longer for a whole elevation and we leave things clean and tidy. For a village or hamlet like Berners Roding, 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.
- Failed sealant is removed back to clean, sound faces.
- 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.
How to prepare
- Let us know if you’ve seen damp or leaks
- Let us know about earlier repairs to the joints
- Keep pets and children clear of the area while we work
Getting a quote
For a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You will have a clear quote before work begins.
Related advice
Aftercare tips
No joint lasts for ever, but care makes a real difference. A few tips:
- Avoid pressure-washing directly into sealant joints
- Get split or bare joints resealed while the damage is small
- Never let anyone fill a movement joint with mortar
- Ask before painting over external sealant
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. Early work is quicker and leaves a better finish.
Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will give you a quote.
Berners Roding buildings and the weather
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.
In and around Berners Roding, as anywhere, good external mastic starts with a clean, dry, properly prepared joint. Homes close to Parish Church of St Christopher Willingale Doe include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move.
Berners Roding is about 8 miles west of Chelmsford, in Essex. We provide external mastic to homeowners, landlords and businesses in Berners Roding and the surrounding area. Across Essex, we cover 644 places, and Berners Roding is one of them. Our Chelmsford page covers work nearby.
Work in CM5 is quoted and booked the same way as anywhere else. If you’re just outside Berners Roding, we cover Willingale (1 mile south), Shellow Bowells (1 mile east), Margaret Roding (2 miles north), Radley Green (2 miles south-east) and Chalk End (2 miles north-east). We also work in nearby towns such as Chelmsford (8 miles east), Basildon (14 miles south-east), Braintree (14 miles north-east), Harlow (8 miles west), Brentwood (9 miles south) and Billericay (10 miles south-east).
Around Berners Roding
In Berners Roding, that means homes and buildings near The Bell Public House and the streets around them. Well-known places in the area include Willingale Doe (under half a mile east).
What sealant work cannot fix
Before booking, it’s worth knowing the limits too:
- Cracks in the bricks or render themselves, away from the joints
- Adding movement joints to masonry that has none
- Subsidence or other structural problems
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly before you book.
What we seal
- Brickwork movement joints
- Concrete & block
- Joints between brick and frames
- Façade panels
- Copings & trims
- Render & cladding joints
Should I try it myself first?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.