Surrey · England
External Mastic in Hindhead
Professional external mastic in and around Hindhead, with old sealant always removed completely and a 12-month guarantee.
- Plants rooting in failed movement joints
- Joints with sealant missing in places
- Sealant pulling away from one side of the joint
How we handle external mastic in Hindhead
A movement joint is only as good as its depth. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, leaving it bonded to two faces so it can move with the wall. If you’re dealing with damp patches traced to an open external joint and rigid filler in a joint that should flex, we can put it right, on façade panels, copings & trims and concrete & block alike.
Somewhere as small as Hindhead, homes and farm buildings often face open ground, where walls and rooflines take the weather head on. Gutter joints and wall joints there need a sealant that can flex and stay put.
Whatever the size of the job, it’s backed by our 12-month guarantee.
- Location
- Hindhead (GU26)
- Wider area
- Surrey
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
How we quote for external mastic
There’s no set price list, because jobs vary so much. What we look at:
- How much old sealant there is and how hard it is to remove
- The product the joint needs
- Any mould that needs treating
- Any working-time requirements on site
The cost depends on the amount of work, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before any work starts.
What we need to know
To help us quote quickly, please include:
- Any previous sealing or DIY work
- How many joints, rooms or windows are involved
- What’s wrong with the joints now
- Pictures of the joints, sent by email
For a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We’ll give you a clear price before any work starts.
Places near Hindhead
More services for Hindhead
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
Hindhead questions
Do you work for landlords with property near Haslemere station?
Yes, we work for landlords and agents. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we will send you a clear quote.
Is Hindhead in your area for external mastic?
Yes. We work across London and the South East, and Hindhead is part of that. You can ring 0345 464 0079 or send us an email and tell us what needs doing, and we will give you a clear quote.
Do you use backing rod?
Closed-cell backing rod sets the depth of the sealant and stops it sticking to the back of the joint. That way it bonds to the two sides only and can stretch.
Do you hold any approvals?
Yes. We are an ARBOMaster approved applicator.
What information do you need?
Let us know what needs doing and where, with photos by email if possible. We will ask anything else we need to know.
Do you seal joints where cladding meets other materials?
Yes. Joints between dissimilar materials are a big part of external work. We use a flexible sealant suited to both surfaces with primer where required.
Should I point up the gap in my brickwork?
No, not where the gap is a movement joint. Filling it with mortar defeats its purpose, and the wall may crack nearby. We will reseal it with a flexible sealant.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.
Why it’s worth doing now in Hindhead
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. In a small place like Hindhead, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Call for a quick quote and we will explain what it covers.
Why us?
- 180+ five-star Google reviews
- Domestic, commercial and hotel work
- A sealant colour to suit the surroundings
- Neat joints and a tidy finish
When it isn’t the sealant
We will always be straight with you, so here’s what new sealant won’t do:
- Movement that’s more than a sealant joint can take
- Walls that need new movement joints cut into them
- Failed render or damaged cladding panels
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly before you book.
Surfaces we seal
- Joints between brick and frames
- Render & cladding joints
- Brickwork movement joints
- Façade panels
- Concrete & block
- Copings & trims
What happens on the day
Before we leave, we go over the finished joints with you and tell you how long to leave it. The work normally takes anything from a few hours to several days, depending on the building, depending on the size of the job. For a village or hamlet like Hindhead, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- Old sealant and any debris are cut and raked out.
- The joint faces are cleaned and primed where the sealant needs it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Getting ready for the visit
- Clear items away from the joints we are working on
- Mention any sign-in or site rules at work premises
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. When it suits you, ring 0345 464 0079 or drop us an email.
Advice
When to call us in Hindhead
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.
If you can see any of these, it’s time to have the joints looked at:
- Water getting into walls through failed joints
- Failed seals between different materials
- Failed sealant between panels on a façade
- Sealant pulling away from one side of the joint
For an older house near a landmark such as Church of St Luke, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Before you book anyone
- The length of the guarantee
- Which colour the sealant will be
- Who turns up on the day
- Whether all the old sealant comes out first
Work for landlords, hotels and businesses
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
We work for letting agents and landlords as well as homeowners. Resealing between tenancies keeps a property looking cared for before the next move-in.
What external mastic looks like in Hindhead
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.
For landlords with property near Haslemere 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 St Edmund's School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Hindhead is about 7 miles south of Farnham, in Surrey. We provide external mastic to homeowners, landlords and businesses in Hindhead and nearby. Our Surrey coverage runs to 395 places, and Hindhead is one of them. Our Crawley page covers work nearby.
Here we cover the GU26 postcode area for external mastic. Whether your property is on Moorlands Close, Hatchlands Drive and Glenville Gardens or anywhere close by, our applicators can take on the job. You will find Hindhead on the A333, so it’s easy for us to get to. Neighbouring places we cover for external mastic include Grayshott (1 mile west), Nutcombe (1 mile south), Beacon Hill (1 mile north-west), Whitmoor Vale (2 miles north-west) and Green Cross (2 miles north-west). We also work in nearby towns such as Guildford (12 miles north-east), Camberley (15 miles north), Farnham (7 miles north), Frimley (14 miles north), Cranleigh (11 miles east) and Ash (9 miles north).
What’s near Hindhead
Around Hindhead, our work takes us to homes and buildings near Beacon Hill Community Primary School, The Fox & Pelican pub and Woolmer Hill School, among other places. The closest station to Hindhead is Haslemere station, about 1.9 miles south-east of the centre. A little further out are Haslemere and District Hospital (2 miles south-east). Open spaces near Hindhead include Gibbet Hill and Lynchmere Commons.