Surrey · England
External Mastic in Frensham
Professional external mastic in and around Frensham, with old sealant always removed completely.
- Movement joints with cracked, split or missing sealant
- Failed seals between different materials
- Water getting into walls through failed joints
External mastic in Frensham, done properly
External mastic is a job where short cuts show quickly. New sealant over old, joints packed with mortar and beads with no backing all tend to fail early. We strip the joint back and start again. Common call-outs are for plants rooting in failed movement joints and rigid filler in a joint that should flex, on brickwork movement joints, façade panels and render & cladding joints.
Somewhere as small as Frensham, homes and farm buildings often face open ground, 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’ve gone.
- Location
- Frensham (GU10)
- Region
- Surrey
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Different surfaces, different methods
Copings and trims
Coping joints that leak let water straight down into the wall. Sealing them early saves the wall below.
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. We reseal their joints with backing rod and a flexible product.
Towns and villages near Frensham
What else we do in Frensham
DIY sealant or a professional job?
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
Landlords, agents and businesses in Frensham
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
How the visit works
You do not need to clear the whole room or building before we come, just the space around the work. We protect the rest, and the work takes a few hours for a handful of joints, longer for a whole elevation in most cases. In a small place like Frensham, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- Old sealant and any debris are cut and raked out.
- 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.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Preparing for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Clear the area around the work
- Mention if the joints have been sealed before
How to get a quote
Every job is quoted individually, so start by telling us what you need. Just ring 0345 464 0079 or send us an email with the details and send pictures if you have them.
Related advice
Why it’s worth doing now in Frensham
The longer a joint stays open, the more water the wall takes in. Wet masonry is more easily damaged by frost near the open joint, so the damage spreads beyond the joint. Older cottages and farmhouses around Frensham can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why book with us
- 12-month guarantee on every job
- 20+ years of sealant experience
- A choice of colours where the product allows
- We agree the colour with you first
Read our cost guide or what customers say.
What external mastic looks like in Frensham
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. Historic houses like Farnham Castle (about 3.6 miles north) are a reminder that the area around Frensham has older buildings as well as new. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth.
Managing a site like St Mary's CofE Aided Infant School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. For an older house near a landmark such as Church of St Mary the Virgin, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Frensham is about 3 miles south of Farnham, in Surrey. Across the GU10 area, we can carry out external mastic at your property. Our area takes in 395 places across Surrey. For nearby work, see our Reading page (21 miles or so).
All of GU10 is within our area for external mastic, from the main roads to the quietest streets. Whether your property is on The Street and Peakfield or a nearby road, we can help. If you are just outside Frensham, we cover Millbridge (1 mile north), Shortfield Common (1 mile north), Crosswater (1 mile south-east), Tilford Reeds (2 miles north-east) and Tilford Common (2 miles east). Within a short drive, we also cover Guildford (11 miles north-east), Woking (14 miles north-east), Camberley (12 miles north), Farnham (3 miles north), Frimley (11 miles north) and Haslemere (6 miles south-east).
Around Frensham
We work in homes and buildings around The Flashes and Edgeborough School, among other places. Frensham’s nearest station is Farnham station, about 3.2 miles north. Nearby you will also find Farnham Castle (3.6 miles north) and Museum of Farnham (3.3 miles north). Open spaces near Frensham include Culverswell Hill and Farnham Heath.
Do you need external mastic in Frensham?
Sometimes a movement joint was filled with mortar or a rigid filler. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
Common reasons people contact us are:
- Movement joints filled with mortar instead of sealant
- Weathered mastic that no longer stretches
- Joints where the bead has come unstuck
- Damp patches traced to an open external joint
For landlords with property near Farnham station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Before booking anyone
- What product goes in the joint
- How long the guarantee is
- How the colour is chosen
- Whether VAT is included
Common questions in Frensham
Is Frensham within the area you cover?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you work for landlords with property near Farnham station?
Yes. We work for landlords and letting agents as well as householders, and several properties can be quoted together. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear quote.
How long should I leave it?
Different products cure at different speeds, so follow the cure time we give you.
What is backing rod for?
Backing rod goes into deeper joints as a matter of course. It sets the sealant depth and prevents three-sided bonding so the bead can stretch.
Where do you work from?
We’re based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Is there any odour?
It depends on the product. Some products have a noticeable smell, others very little.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before resealing.
Do you guarantee your work?
Yes. Every job comes with a one-year guarantee.
When it isn’t the sealant
New sealant cannot fix everything, and we’d rather say so up front. It will not solve:
- Subsidence or other structural problems
- Loose or hollow render, which needs re-rendering
- Cracking across the wall rather than at a joint
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly before booking.
Joints and surfaces we work on
- Render & cladding joints
- Copings & trims
- Concrete & block
- Joints between brick and frames
- Façade panels
- Brickwork movement joints