Essex · England
Ridgewell External Mastic
Specialist external mastic for Ridgewell: careful preparation, the right product and tidy work. Call for a quick quote.
- Rain getting behind render or cladding at a joint
- Panel joints letting water in
- Moss and dirt in joints with no sealant left
How we handle external mastic in Ridgewell
We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. We pick a colour that sits well with the wall so the line blends in. We’re often asked to deal with damp patches traced to an open external joint and old sealant gone brittle and cracked, on façade panels, concrete & block and copings & trims.
Older homes in small places like Ridgewell may be stone, brick or timber-framed, often with later extensions. The joints where those materials meet are the weak points, and they need the right sealant at the right depth.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.

- Place
- Ridgewell (CO9)
- Region
- Essex
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
How the visit works
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 the amount of work. In a small place like Ridgewell, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we look over the joints with you, agree which to renew and talk through access.
- The old mastic and anything lodged in the joint is removed.
- The joint faces are cleaned and primed where the sealant needs it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- Tell us about any previous sealing or DIY attempts
- Move anything stored near the joints
Ask for a quote
Getting a quote is simple: let us know what needs doing and where, and roughly how big it is. A few pictures by email make the job easier to understand, and we’ll take it from there.
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How the job changes by surface
Joints between dissimilar materials
Wherever two materials meet, they move differently. We seal the joint with a flexible exterior sealant so the movement is taken up.
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 we’re called out for in Ridgewell
Joints sealed without backing rod, or far too deep, rarely last. If the sealant sticks to the back as well as the sides, it can’t stretch and rips as the joint opens.
If you can see any of these, it’s time to have the joints looked at:
- Sealant that has lost its bond to the brick or render
- Rigid filler in a joint that should flex
- Weathered mastic that no longer stretches
- Movement joints with cracked, split or missing sealant
Schools such as Ridgewell Church of England Primary School are buildings too, and larger buildings have long runs of movement joint that eventually need resealing.
Before booking anyone
- How the colour is chosen
- Whether they seal over old material or remove it
- What happens if they find a problem under the old sealant
- How the joint is cleaned and prepared
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Walk round the building once a year and look at the joints
- Get split or bare joints resealed while the damage is small
- Avoid pressure-washing directly into sealant joints
- Point out the joints to other trades
Make sure anyone working on the wall later knows where the movement joints are. They must stay as flexible joints, never rendered or pointed over.
Leaks behind façade panels and render often go unseen. When it finally shows inside, the joint may have been open for years so early resealing is worth it.
Your questions about external mastic in Ridgewell
Is external mastic in Ridgewell guaranteed?
All our work, in Ridgewell and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
Is Ridgewell within the area you cover?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Are you an approved applicator?
Yes. We’re approved under the ARBOMaster scheme.
How much does external mastic cost in Ridgewell?
It depends on the job, so we quote each one individually. For a quick quote, phone 0345 464 0079 or email us and tell us what needs doing and where.
Can you seal joints between render and window frames?
Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. We pick a colour that works with both materials.
Are you fully insured?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us.
Why do you put foam in the joint first?
We fit closed-cell backing rod wherever the joint depth needs controlling. It sets the sealant depth and prevents three-sided bonding, so the joint can move.
When it isn’t the sealant
It helps to know what we can’t do:
- Structural movement, which needs a surveyor or engineer
- Cutting new joints into brickwork, which is building work rather than sealant work
- Rising or penetrating damp from elsewhere in the wall
If you’re not sure, just phone 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Surfaces we seal
- Copings & trims
- Concrete & block
- Façade panels
- Render & cladding joints
- Brickwork movement joints
- Joints between brick and frames
Work for landlords, hotels and businesses
If you manage several properties in or around Ridgewell, several properties can be quoted together. Just tell us the addresses and what each one needs.
We also work for property managers and facilities teams in Ridgewell and across Essex. Several sites can be quoted together, and we are fully insured for the work.
Nearby places to Ridgewell
More services for Ridgewell
Outside joints around Ridgewell
Historic houses like Hedingham Castle (about 4.4 miles south-east) are a reminder that the area around Ridgewell has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
In the older streets around Parish Church of St Lawrence, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Ridgewell is in Essex. Ridgewell gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Across Essex, we cover 644 places, and Ridgewell is one of them. There’s also a page for Chelmsford, roughly 21 miles from Ridgewell.
Here we cover the CO9 postcode area for external mastic. We cover properties on Mill Road, Rose Walk and Colne Springs and the roads around them. We also cover the places around Ridgewell: Wesley End (1 mile south-west), Oaker Hill (1 mile south-east), Baythorne End (1 mile north-west) and Stambourne (2 miles south-west). Larger places within reach include Braintree (11 miles south), Saffron Walden (12 miles west), Halstead (8 miles south-east), Great Dunmow (14 miles south-west), Great Notley (12 miles south) and Bocking (11 miles south).
Landmarks near Ridgewell
In Ridgewell, that means homes and buildings near The King's Head Public House and Stoke College. Other landmarks nearby include Clare Castle (3.5 miles north-east) and Toppesfield Museum of The Working Horse (2.2 miles south).
What affects the quote in Ridgewell
We do not publish a price list, because jobs vary so much. The quote depends on:
- How easy the joints are to reach
- How much old sealant there is and how hard it is to remove
- Mould in or behind the old joints
- The amount of work
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we’ll talk you through it.
Helping us quote
To help us quote quickly, let us know:
- Photos by email, if that is easy
- The address or postcode of the job
- What’s wrong with the joints now
- The rough size of the job
For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we will talk you through the work before giving you a price.
