Surrey · England
Guildford External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for Guildford, backed by a 12-month guarantee. Ask us for a quote.
- Old sealant gone brittle and cracked
- Sealant pulling away from one side of the joint
- Leaking joints around cladding and façade panels
Guildford buildings and the weather
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Guildford Castle (about 0.9 miles south) nearby, there’s older building stock in the area around Guildford as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
If you let a flat or house near London Road (Guildford) station, outside joints that have cracked can let damp into a rental, so check them between lets. Managing a site like Sandfield Primary School? Then its movement joints, gutters and trims need looking after like any other building’s.
Guildford is about 27 miles south-west of London, in Surrey. Whether you’re in the middle of Guildford or further out, we cover external mastic for every kind of property, from flats and houses to offices and hotels. 395 places in Surrey are on our list. We also work in Crawley, around 19 miles away.
Our applicators cover all of the GU1, GU2, GU4 and GU3 postcode area for external mastic. If you need external mastic at a property on Church Road, Market Street and High Street or anywhere close by, our applicators can take on the job. Main roads around Guildford include the A3 and A25, so getting to you is simple. Nearby, we also carry out external mastic in Bellfields (1 mile north), Abbotswood (1 mile south-east), Stoughton (1 mile north-west), Westborough (1 mile west) and Burpham (1 mile north-east). Further out, we also cover Woking (5 miles north), Camberley (9 miles north-west), Epsom (15 miles north-east), Farnham (10 miles west), Egham (13 miles north) and Walton-on-Thames (12 miles north-east). Guildford is one of the larger places we cover in Surrey.
Local landmarks in Guildford
In Guildford, that means homes and buildings near The King's Head pub, Guildford High School and Surrey Maths School and the streets around them. The nearest railway station is London Road (Guildford) station, about 0.6 miles south-east of the centre. Other landmarks nearby include Guildford Castle (0.9 miles south) and Guildford House (0.8 miles south). Open spaces near Guildford include Silent Pool and Pewley Hill.
About our external mastic in Guildford
A movement joint is only as good as its depth. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, leaving it bonded to two faces so it can move with the wall. If you’re dealing with weathered mastic that no longer stretches and leaking joints around cladding and façade panels, we can put it right, whatever the surface.
Landlords and managing agents in Guildford have plenty of walls and rooflines to keep an eye on. The first sign is normally a dripping gutter end or a stain below a failed joint.
Every job comes with a 12-month guarantee, wherever you are in Surrey.
Common questions in Guildford
Is external mastic in Guildford guaranteed?
All our work, in Guildford and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Can you do external mastic in Guildford?
Yes. We work across London and the South East, and Guildford is part of that. You can phone 0345 464 0079 or email us and tell us what needs doing, and we’ll give you a clear price.
How often do external joints need resealing?
It depends on the exposure, the movement and the product. Treat it as a maintenance item and look at it yearly and reseal when it splits.
Which products do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Should I try DIY first?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.
What should I tell you?
Only a few details: where it is, what you’ve noticed and how we reach it. After that, simply ring 0345 464 0079 or send us an email.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we are fully insured.
Is there any odour?
That depends on the sealant. Some products have a noticeable smell, others very little.
Signs you need external mastic in Guildford
Weeds, moss and debris in a joint are a sign the sealant has gone. Dirt and roots then trap moisture in the joint and make things worse.
The problems people usually mention when they call include:
- Plants rooting in failed movement joints
- Movement joints filled with mortar instead of sealant
- Brick movement joints where the sealant has split
- Cracked joints where brick meets render or frames
Homes close to Church of St John the Evangelist include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep.
What your quote should include
- What preparation is included
- Whether the sealant suits the joint
- How much experience the applicator has
- What happens if the job turns out different
What affects the cost of external mastic
The quote reflects the job in front of us. We look at:
- Any mould that needs treating
- How easy the joints are to reach
- The number and length of the joints
- How many rooms, windows or areas are involved
The cost depends on the size of the job, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts.
What we need to know
Photos help, but a description is a good start. Please mention:
- If it’s domestic, commercial or a hotel
- Access, such as stairs, a lift or height
- Any previous sealing or DIY work
- A few pictures by email, if you can
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. When it suits you, phone 0345 464 0079 or drop us an email.
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Deal with leaking gutters that soak the joints below
- Walk round the building once a year and look at the joints
- Clear growth from the base of walls and joints
- Wash walls gently around the sealant
Make sure anyone working on the wall later knows where the movement joints are. They should be kept open and resealed, not filled.
A joint that has stopped moving pushes the movement elsewhere, often as cracks near the joint. Catch it early and you reduce the risk.
What sealant work can’t fix
In fairness, some problems need a different trade:
- Cracked brickwork or render that needs a builder or plasterer
- Subsidence or other structural problems
- Damp that is not coming from the joint
If you’re not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer before you book.
Surfaces we seal
- Façade panels
- Concrete & block
- Render & cladding joints
- Brickwork movement joints
- Copings & trims
- Joints between brick and frames
How the visit works
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes a few hours for a handful of joints, longer for a whole elevation. Jobs in a place the size of Guildford range from town-centre flats to offices and family homes. Whichever it is, tell us how to get in, where to park and where the work is.
- We start by walking round the building and agreeing the joints and the access.
- We cut out the old mastic and rake out anything in the joint.
- Joint faces are cleaned back and primed if the sealant needs it.
- Backing rod sized to the joint goes in to set the depth.
- We apply the sealant, tool it and check the whole run.
Before we arrive
- Move anything stored near the joints
- Tell us about any water getting in
- Keep children and pets away from the work area
Get a quote
There’s no standard price list. Instead, we give you a clear price for your job. To get started, ring 0345 464 0079 or email us.
Advice
Different surfaces, different methods
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it. Send us any details you have about the façade.
Copings and trims
A failed coping joint lets water into the top of the wall. Sealing them early saves the wall below.
What happens if it’s left?
Water gets in through a failed movement joint and can run behind render or cladding. Dealing with it early keeps the repair to the joint, rather than the wall around it. For landlords in Guildford, failed sealant soon turns into tenant complaints about mould, damp or draughts. Sorting it between tenancies is easier than dealing with it mid-let.
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference.
Why book with us
- Any old sealant cut out fully, not covered over
- We agree the colour with you first
- Sealant colour chosen to suit
- Arbo and Everbuild products
Take a look at our cost guide and what customers say.