Surrey · England
External Mastic in Bletchingley
Movement joints in Bletchingley need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Failed seals between different materials
- Plants rooting in failed movement joints
- Leaking joints around cladding and façade panels
About our external mastic in Bletchingley
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. If you are dealing with moss and dirt in joints with no sealant left and movement joints filled with mortar instead of sealant, we can put it right.
External sealant needs dry, clean surfaces, so work around Bletchingley is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.
A one-year guarantee comes as standard, so you are covered after we’ve gone.
- Where
- Bletchingley (RH1)
- Wider area
- Surrey
- Cover
- 12 months on all our work
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Surface by surface
Concrete and blockwork
The face of concrete or block is often dusty, so cleaning and priming matter. We prime where the sealant needs it.
Copings and trims
Coping and trim joints face rain and sun head on. We reseal them with an exterior sealant suited to the material.
External mastic in Bletchingley: local notes
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you let a flat or house near Nutfield station, outside joints that have cracked can let damp into a rental, so check them between lets. Managing a site like Bletchingley Village Primary School? Then larger buildings have long runs of movement joint that eventually need resealing.
Bletchingley is about 3 miles east of Redhill, in Surrey. We carry out external mastic for householders, landlords and businesses in Bletchingley. 395 places in Surrey are on our list, from the larger towns to small villages. Crawley is on our list too, around 10 miles away.
Jobs for external mastic in RH1 works the same way as everywhere else we cover. Whether your property is on High Street, Kenrick Square and St Marys Walk or a nearby road, our applicators can take on the job. Other places close to Bletchingley include Godstone (2 miles east), Tyler's Green (2 miles north-east), Church Town (2 miles east), South Godstone (3 miles south-east) and Tandridge (3 miles east). Further out, we also cover Epsom (10 miles north-west), Horley (5 miles south-west), Redhill (3 miles west), Ewell (10 miles north-west), Reigate (4 miles west) and Caterham (3 miles north).
Around Bletchingley
In Bletchingley, that means homes and buildings near Merstham Park School, The Prince Albert Public House and Kitchen Copse, among other places. The closest station to Bletchingley is Nutfield station, roughly 1.7 miles south-west. A little further out are East Surrey Museum (3 miles north) and The Belfry (3 miles west). Green spaces nearby include Mercers Lake and Bay Pond.
Questions from Bletchingley
I let a flat near Nutfield station. Can you help?
Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
Is Bletchingley in your area for external mastic?
Yes. We work across London and the South East, and Bletchingley is part of that. Just ring 0345 464 0079 or email us with a few details of the job, and we’ll send you a clear quote.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status.
Can you do several jobs on one visit?
Yes. More than one area can be quoted together.
Is it OK to seal over old sealant?
No, and we never do. It may look fine at first, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
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.
Is it OK to fill a movement joint with cement?
No. Cement or mortar cannot stretch, so the joint stops doing its job. If it has already been filled, we can usually cut it out and reseal it.
What do you put in the joint?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Looking after it afterwards
Looking after new joints is easy, and it makes a real difference:
- Make sure movement joints are not pointed over
- Have failed joints looked at early
- Ask before painting over external sealant
- Deal with leaking gutters that soak the joints below
Avoid pressure-washing straight into the joints. A strong jet can damage the edges of the bead over time.
Once a joint cannot move, the wall finds another way, generally as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
For landlords and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
Why deal with it now?
Pointing a movement joint with mortar might seem a neat fix, but it stops the joint moving. The movement then cracks the brickwork or render nearby. The correct repair is a flexible sealant with the right backing. Where a wall is exposed, as many are in small places like Bletchingley, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re unsure, ring 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
Why Bletchingley clients choose us
- We agree the colour with you first
- Approved under the ARBOMaster scheme
- Homes, businesses and hotels
- A sealant colour to suit the surroundings
Read how sealant jobs are priced and our reviews.
When to call us in Bletchingley
Sunlight, wet weather and frost wear exterior sealant down. Over the years it hardens, cracks on the surface and loses its give, so the joint eventually tears or comes away from one side.
Keep an eye out for any of the following:
- Weeds or debris growing in open joints
- Hard, crazed mastic that has stopped moving
- Water getting into walls through failed joints
- Sealant that has lost its bond to the brick or render
If you live in an older home near Church of St Mary the Virgin, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
What to look for in a quote
- Which sealant they’ll use, and why
- What happens if they find a problem under the old sealant
- How long to leave it before use
- Are they insured?
Also near Bletchingley
Also in Bletchingley
What we can’t put right
In fairness, there are a few things sealant won’t fix:
- Loose or hollow render, which needs re-rendering
- Cracking across the wall rather than at a joint
- Cutting new joints into brickwork, which is building work rather than sealant work
If you are not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer.
Surfaces we seal
- Concrete & block
- Joints between brick and frames
- Brickwork movement joints
- Render & cladding joints
- Copings & trims
- Façade panels
The process
There is not much for you to do on the day. Point us to the joints and we will get on with it. The job generally takes a few hours to a few days, depending on the length of joint and the access. For a village or hamlet like Bletchingley, 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.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
Getting ready for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us if parking is tricky
- Mention if the joints have been sealed before
Get a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that’s easy.