Greater London · England
External & façade joints in Chessington, Greater London
Professional external mastic in and around Chessington, with old sealant always removed completely.
- Damp patches traced to an open external joint
- Sealant pulling away from one side of the joint
- Failed seals between different materials
FAQs for Chessington
Can you do external mastic in Chessington?
Yes, Chessington is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we’ll send you a clear quote.
Can parking be tricky for a visit in Chessington?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. The visit is then planned around what’s available.
Which products do you use?
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.
Should I try DIY first?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
Do you work for hotels and businesses?
Yes. We’ve worked for hotels, offices and other businesses and we are fully insured.
How long does the job take?
That depends on the amount of work, but as a guide it takes a few hours to a few days, depending on the length of joint and the access. We’ll give you a better idea when we quote.
Can you seal joints between two different materials?
Yes. We cut out the old sealant, prepare both faces and reseal with a flexible exterior product. We pick a colour that works with both materials.
External mastic in Chessington
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Porous or awkward surfaces are primed where the sealant needs it. Common call-outs are for plants rooting in failed movement joints and weathered mastic that no longer stretches, across joints between brick and frames, render & cladding joints and brickwork movement joints.
Modern London flats rely on sealed movement joints and cladding joints. Older terraces have their own weak points: gutter joints, roofline trims and the joint where an extension meets the original wall, and both kinds of building are found across London.
Our work is backed for twelve months.
- Where
- Chessington (KT9, KT19, KT6)
- Region
- Greater London
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Can I do it myself?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
How it works
On the day, we start by going over the job with you, so there are no surprises. Surfaces next to the work are protected before any work begins. The work normally takes a few hours to a few days, depending on the length of joint and the access. In Chessington, flats, stairs and shared entrances are part of the routine. Mention any building rules, key holders or managing agents when you book.
- First we look over the joints with you, agree which to renew and talk through access.
- We cut out the failed sealant and rake out any dirt or growth.
- Both sides are cleaned back to sound material and primed if needed.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
How to prepare
- For business premises, tell us about site rules or sign-in
- Try not to wet indoor joints just before the visit
- Let us know about earlier repairs to the joints
Get a quote
Want a quote for external mastic? Please call 0345 464 0079 or drop us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Advice
Why deal with it now?
Pointing a movement joint with mortar might seem a neat fix, but it locks the joint solid. The wall then cracks somewhere else. A flexible sealant over backing rod is what the joint needs. Damp from a failed joint spreads quietly in older London brickwork and timber, and by the time it shows on a wall or ceiling in Chessington, the repair is bigger than the sealant job would have been.
The cost depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before work begins, so you know where you stand.
Why us?
- A choice of colours where the product allows
- Neat joints and a tidy finish
- Every job guaranteed for a year
- We are fully insured
Take a look at what affects the cost and our reviews.
Landlords, agents and businesses in Chessington
Hotels need rooms back in use, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
If you manage several properties in or around Chessington, jobs at different addresses can go on one quote. Send us the addresses and the work at each.
What affects the quote in Chessington
We quote each job individually. These are the things that affect it:
- Any mould that needs treating
- The type of sealant required
- Whether the work is at height
- The number and length of the joints
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What to tell us for a quote
Before you ask for a quote, have a think about:
- Where the property is
- The problem you’ve noticed
- How many joints, rooms or windows are involved
- Any previous sealing or DIY work
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
What we are called out for in Chessington
Sunlight, wet weather and frost wear exterior sealant down. Over the years it hardens, cracks on the surface and loses its give, so the next time the wall moves, it splits or pulls away.
Signs it’s time to call us include:
- Failed seals between different materials
- Water getting into walls through failed joints
- Weeds or debris growing in open joints
- Leaking joints around cladding and façade panels
As a London address, Chessington can be tricky for parking: let us know about parking bays, permits or a driveway.
Before you book anyone
- Is the old sealant removed completely?
- What the cure time is
- Whether you can choose the colour
- Who does the work, and how experienced they are
Also near Chessington
More services for Chessington
What external mastic looks like in Chessington
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. In terraces and conversions, gutters and walls are often shared with the neighbours, so it’s worth agreeing who is responsible before work starts.
If you let a flat or house near Chessington North station, split movement joints are easy to miss on a rental until damp shows inside. In the older streets around Church of St Mary the Virgin, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Chessington is about 2 miles north-west of Epsom, in Greater London. Jobs in Chessington get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. 764 places in Greater London are on our list. You can also see our page for London, about 13 miles away.
Postcode districts we cover here for external mastic: KT9, KT19 and KT6. Whether your property is on Elm Road, Cox Lane and Moor Lane or a nearby road, our applicators can take on the job. With the A243 close by, Chessington is easy for our applicators to reach for external mastic. Nearby, we also carry out external mastic in Horton (1 mile south), Old Malden (2 miles north-east), Tolworth (2 miles north-east), Surbiton (2 miles north) and Worcester Park (2 miles east). Within a short drive, we also cover London (13 miles north-east), City of Westminster (12 miles north-east), Marylebone (13 miles north-east), Kensington (10 miles north-east), St Pancras (14 miles north-east) and Shoreditch (15 miles north-east).
Local landmarks in Chessington
In Chessington, that means homes and buildings near Shrewsbury House School, Chessington Community College and Horton Country Park. There’s a railway station in Chessington itself: Chessington North station. Nearby you’ll also find Tolworth Hospital (1.2 miles north-east) and Chessington Castle Hill (0.5 miles south-east). The countryside around Chessington includes Kingston Hill Road area and Bonesgate Open Space.
When it isn’t the sealant
Some problems need a builder, plumber or other trade rather than us:
- Structural movement, which needs a surveyor or engineer
- Walls that need new movement joints cut into them
- Cracking across the wall rather than at a joint
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think before you book.
Joints and surfaces we work on
- Brickwork movement joints
- Render & cladding joints
- Copings & trims
- Façade panels
- Concrete & block
- Joints between brick and frames