West Sussex · England
Bury External Mastic
Specialist external mastic for Bury: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Joints where the bead has come unstuck
- Old sealant gone brittle and cracked
- Failed seals between different materials
How we handle external mastic in Bury
We are ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Porous or awkward surfaces are primed where the sealant needs it. If you have moss and dirt in joints with no sealant left and movement joints with cracked, split or missing sealant, we can put it right, on façade panels, concrete & block and copings & trims alike.
In a village or hamlet like Bury, older cottages and farm buildings often stand in the open, 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.
A one-year guarantee comes as standard, so you’re covered after we have gone.
- Where
- Bury (RH20)
- Region
- West Sussex
- Guarantee
- One year on every job
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Surface by surface
Concrete and blockwork
Wide joints in concrete need the depth controlling carefully. We size the backing rod to the gap.
Copings and trims
Joints in copings, parapets and trims are exposed to the worst of the weather. We reseal them with an exterior sealant suited to the material.
Why deal with it now?
Sealing over the top of old mastic does not hold for long. New sealant doesn’t bond well to old, weathered sealant, so the old joint is cut out fully first. Older cottages and farmhouses around Bury can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Doing several joints on one visit is normally more efficient than separate visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
Why book with us
- Colour picked to suit the job
- An ARBOMaster approved applicator
- Colour agreed with you before work begins
- Domestic, commercial and hotel work
External mastic in Bury: local notes
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. With historic houses such as Bignor Roman Villa (about 1.7 miles north-west) nearby, there’s older building stock in the area around Bury as well as newer homes. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth.
If you let a flat or house near Amberley station, outside joints that have cracked can let damp into a rental, so check them between lets. For site and facilities teams at buildings such as Bury CofE Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Bury is about 7 miles north of Littlehampton, in West Sussex. Whether you are in the middle of Bury or further out, we cover external mastic for every kind of property, from flats and houses to offices and hotels. Bury is one of 371 towns and villages in West Sussex we cover. Brighton is on our list too, about 20 miles from Bury.
Work in RH20 is quoted and booked the same way as anywhere else. If you need external mastic at a property on The Street, Houghton Lane and Coombe Crescent or anywhere close by, we can help. Neighbouring places we cover for external mastic include West Burton (1 mile north-west), Amberley (1 mile east), Watersfield (2 miles north), Cross Gate (2 miles east) and Coldwaltham (2 miles north-east). Larger places within reach include Horsham (15 miles north-east), Worthing (9 miles south-east), Bognor Regis (10 miles south-west), Chichester (11 miles south-west), Littlehampton (7 miles south) and Shoreham-by-Sea (14 miles east).
What’s near Bury
Locally, jobs take us to homes and businesses close to Dorset House School, among other places. The closest station to Bury is Amberley station, roughly 1.2 miles south-east. Other landmarks nearby include Amberley Museum (1.2 miles south-east) and Arundel and District Hospital (3.8 miles south). Not far away are Bignor Hill and Amberley Wild Brooks.
Looking after it afterwards
Looking after new joints is easy, and it makes a real difference:
- Have failed joints looked at early
- Check external joints each spring
- Deal with leaking gutters that soak the joints below
- Wash walls gently around the sealant
Keep pressure washers away from the sealant. High-pressure water can lift the edges and let water in behind.
Leave a failed movement joint and water keeps getting into the wall. Over time it can mean damp inside, stained render or frost-damaged brick which cost more to put right than the joint.
Your questions about external mastic in Bury
Can you help a landlord with a rental near Amberley station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear quote.
Will you come out to Bury?
Yes, Bury is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can I add another job to the visit?
Yes. Just list everything you need and you will get one quote.
What does external mastic cost?
We don’t publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You will get a clear quote before we start.
Do I have to be there?
If the work is inside, we need someone to let us in. Once we have agreed the job, you don’t need to watch us work.
Do you guarantee your work?
Yes, for a year. If anything is not right with the work within the year, let us know and we’ll sort it.
How long does external mastic take?
Typically it takes a few hours to a few days, depending on the length of joint and the access. Bigger jobs take longer, and we will tell you how long to expect.
When is the sealant fully cured?
Most sealants are touch-dry well before they’re fully cured. We will give you the cure time for the product we used.
How we quote for external mastic
The price is agreed before any work begins. It takes into account:
- How many rooms, windows or areas are involved
- How much there is to do
- Access and height
- The type of sealant required
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or email us and we will talk you through it.
Asking for a quote
You don’t need to know the technical terms. Just tell us:
- The type of property
- A few pictures by email, if you can
- Where the job is, and your postcode
- How many joints, rooms or windows are involved
For external mastic in Bury, phone 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Towns and villages near Bury
Also in Bury
Landlord and commercial work in Bury
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can go on one quote.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
What we do, step by step
On the day, we look over the joints with you first. We protect the surfaces around the joints before any work begins. The work usually takes anything from a few hours to several days, depending on the building. Somewhere as small as Bury, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each joint, agreeing the ones to redo and how we will reach them.
- We cut out the failed sealant and rake out any dirt or growth.
- 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.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Before we arrive
- Mention if the joints have been sealed before
- Mention any parking rules near the property
- Tell us about access, such as stairs, a lift or high-level joints
Getting a quote
Asking for a quote is easy: tell us what needs doing and where and its rough size. A few pictures by email make the job easier to understand, and we will take it from there.
Advice
Do you need external mastic in Bury?
The wrong product in a moving joint is a classic cause. A high-modulus or general-purpose sealant can be too rigid for a busy joint, so it pulls away from the edges.
Common reasons people contact us include:
- Weeds or debris growing in open joints
- Brick movement joints where the sealant has split
- Old sealant gone brittle and cracked
- Joints where the bead has come unstuck
Homes close to The Parish Church of St John the Evangelist include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
What to look for in a quote
- What preparation is included
- Which sealant they’ll use, and why
- Whether they seal over old material or remove it
- What the quote includes, VAT included or not