Surrey · England
External & façade joints in Abbotswood, Surrey
External mastic for Abbotswood, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Failed sealant between panels on a façade
- Weathered mastic that no longer stretches
- Rain getting behind render or cladding at a joint
What the job involves on each surface
Copings and trims
Coping and trim joints face rain and sun head on. Each is resealed with a weatherproof, flexible sealant.
Concrete and blockwork
The face of concrete or block is often dusty, so preparation is key. A primer goes on where the product requires one before the bead.
About our external mastic in Abbotswood
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 joint doesn’t stand out. If you’re dealing with rigid filler in a joint that should flex and water getting into walls through failed joints, we can put it right.
Outbuildings, garages and conservatories around homes in places like Abbotswood add more joints to look after. Gutter ends, garage door frames and the joints where an extension meets the house are typical spots for leaks.
Each job carries a 12-month guarantee, whatever its size.

- Location
- Abbotswood (GU1)
- Region
- Surrey
- Guarantee
- A year, on every job
- Price
- A clear price before work begins
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Towns and villages near Abbotswood
More services for Abbotswood
How the visit works
We keep the work tidy and contained to the area we are working on, so you can carry on as normal. Expect the work to take a few hours for a handful of joints, longer for a whole elevation, and we explain the cure time before we leave. Parking around Abbotswood is usually easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- We start by walking round the building and agreeing the joints and the access.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- For indoor joints, keep the area dry beforehand if you can
- Keep pets and children clear of the area while we work
Ask for a quote
There’s no standard price list. Instead, we send you a clear quote for your job. To get started, phone 0345 464 0079 or send us an email.
Advice
What happens if it’s left?
Low-modulus sealants stretch easily, so they put less strain on the joint edges. That protects surfaces like brick, render and concrete. A stiffer product can damage the joint edge as it fails. In an older home around Abbotswood, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Why Abbotswood clients choose us
- Old sealant always removed completely
- White, clear, grey or another colour, product permitting
- Domestic, commercial and hotel work
- Every job guaranteed for a year
Read our cost guide and what customers say.
When to call us in Abbotswood
Every building moves. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. The sealant in the movement joints takes that strain.
Look out for these signs:
- Hard, crazed mastic that has stopped moving
- Panel joints letting water in
- Water getting into walls through failed joints
- Movement joints with cracked, split or missing sealant
If you let a flat or house near London Road (Guildford) station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Comparing quotes
- How the colour is chosen
- How the surfaces are prepared before sealing
- The length of the guarantee
- How much experience the applicator has
How we quote for external mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- The size of the job
- How much old sealant there is and how hard it is to remove
- The product the joint needs
- Whether there’s mould to deal with
What it costs depends on how much there is to do, how hard the old material is to remove and access to the work. We give a clear quote before work begins.
What we need to know
Photos by email are helpful but not essential. Try to tell us:
- Where the property is
- The rough size of the job
- Whether it has been sealed before
- Any access issues, like height or stairs
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we will explain what’s involved and give you a clear price.
Outside joints around Abbotswood
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Guildford Castle (about 0.7 miles south-west) nearby, there’s older building stock in the area around Abbotswood as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
If you live in an older home near Christ Church, an extension built onto an older house moves differently, and the joint between them takes the strain. For site and facilities teams at buildings such as Lanesborough School, its movement joints, gutters and trims need looking after like any other building’s.
Abbotswood is about 1 mile south-east of Guildford, in Surrey. Our applicators cover external mastic for householders, landlords and businesses in Abbotswood. We cover 395 towns and villages across Surrey. Crawley is on our list too, around 18 miles away.
Every address in GU1 is covered for external mastic, from the main roads to the quietest streets. External mastic is available to properties on York Road, Stoke Road and Maori Road. Abbotswood sits on or near the A246 and A3100, so getting to you is simple. Neighbouring places we cover for external mastic include Guildford (1 mile north-west), Burpham (1 mile north-east), Bellfields (1 mile north-west), Merrow (1 mile east) and East Shalford (2 miles south). We also work in nearby towns such as Woking (5 miles north), Camberley (10 miles north-west), Epsom (14 miles north-east), Farnham (10 miles west), Ewell (15 miles north-east) and Egham (13 miles north).
Near you in Abbotswood
In Abbotswood, that means homes and buildings near Guildford High School, Holy Trinity and Stoke Park and the streets around them. There’s a railway station in Abbotswood itself: London Road (Guildford) station. A little further out are St. Luke’s Hospital (within half a mile south) and Guildford Castle (0.7 miles south-west). For a walk, there’s Silent Pool and Pewley Down.
What we can’t put right
In fairness, some problems need a different trade:
- Structural movement, which needs a surveyor or engineer
- Adding movement joints to masonry that has none
- Damp that isn’t coming from the joint
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly before you book.
Surfaces we seal
- Façade panels
- Render & cladding joints
- Copings & trims
- Brickwork movement joints
- Joints between brick and frames
- Concrete & block
FAQs for Abbotswood
Do you work for landlords with property near London Road (Guildford) station?
Yes, we work for landlords and agents. Just call 0345 464 0079 or email us and tell us about the property, and we will send you a clear quote.
Is Abbotswood in your area for external mastic?
Yes. We work across London and the South East, and Abbotswood is part of that. You can call 0345 464 0079 or email us and tell us what needs doing.
Can you do several jobs on one visit?
Yes, we can. Several rooms, windows or areas can go on one quote.
Do the sealants smell?
Possibly a little. It fades as the sealant cures.
Where do you work from?
Mr Mastic is based in Crawley. We cover Abbotswood and the rest of Surrey.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before resealing.
What information do you need?
Where the job is, what the problem is and roughly how big it is. If you can, email a few photos.
Are you an approved applicator?
Yes. We are approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
Aftercare tips
Looking after new joints is easy:
- Do not let climbing plants root in the sealant
- Avoid pressure-washing directly into sealant joints
- Look over the joints every year, ideally after winter
- Point out the joints to other trades
Avoid pressure-washing straight into the joints. A strong jet can damage the edges of the bead over time.
Once a joint can’t move, the wall finds another way, often as cracks near the joint. Resealing it early helps prevent that.
