Surrey · England
Redlands External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in Redlands. Fully insured, ARBOMaster approved and guaranteed for a year.
- Sealant pulling away from one side of the joint
- Failed sealant between panels on a façade
- Moss and dirt in joints with no sealant left
Landlords, agents and businesses in Redlands
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
For anyone letting property in or around Redlands, several properties can go on one quote. Send us the addresses and the work at each, and pictures by email help.
External mastic in Redlands
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. We work on concrete & block, render & cladding joints and façade panels, and the jobs we see most are joints where the bead has come unstuck and gaps where render, brick and frames meet.
In a village or hamlet like Redlands, older cottages and farm buildings often stand in the open, 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.
Big or small, it’s backed by our 12-month guarantee.
- Location
- Redlands (GU10)
- Wider area
- Surrey
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026

Towns and villages near Redlands
Other services in Redlands
Aftercare tips
After the cure time, these simple habits help:
- Point out the joints to other trades
- Get split or bare joints resealed while the damage is small
- Look over the joints every year, ideally after winter
- Keep high-pressure jets off the joints
Keep the joints clear of soil, plants and climbing growth. Anything that holds water against the joint wears it out sooner.
Gaps, plants or missing sealant in a joint are worth getting looked at. Early work is quicker and leaves a better finish.
Redlands: your questions answered
Can you help a landlord with a rental near Farnham station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear quote.
Do you cover Redlands for external mastic?
Yes, Redlands is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or email us with a few details of the job.
Why do you put foam in the joint first?
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.
How long before the joint can be used?
Many sealants skin over quickly but take longer to cure fully. We will give you the cure time for the product we used.
Where do you work from?
Our base is Crawley. Our area covers South East England, London and Scotland.
What do you need from me for a quote?
Tell us what needs doing and where. If we need more, we will ask.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you don’t need to watch us work.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Walls and rooflines in Redlands
Historic houses like Farnham Castle (about 2.3 miles south-east) are a reminder that the area around Redlands 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. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you live in an older home near Church of All Saints, old and new materials meet at the roofline and walls, which is where sealant earns its keep. For landlords with property near Farnham station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Redlands is about 3 miles south of Fleet, in Surrey. We carry out external mastic for homes and businesses in Redlands and nearby. Redlands is one of 395 towns and villages in Surrey we cover. We also work in Reading, around 16 miles away.
Every address in GU10 is covered for external mastic, from the main roads to the quietest streets. Close by, we work in Warren Corner (1 mile east), Crondall (1 mile south-west), Dora's Green (1 mile south-east), Ewshot (1 mile east) and Bowling Alley (1 mile north-west). Further out, we also cover Guildford (12 miles east), Woking (13 miles north-east), Camberley (9 miles north-east), Farnham (3 miles south-east), Frimley (7 miles north-east) and Haslemere (12 miles south-east).
Around Redlands
We work in homes and buildings around The Plume Of Feathers Public House, St Nicholas' School and Court Moor School and the streets around them. The nearest railway station is Farnham station, roughly 2.9 miles south-east of the centre. A little further out are Hart Shopping Centre (3.1 miles north) and Museum of Farnham (2.4 miles south-east). Green spaces nearby include Farnham Park and Beacon Hill.
Surface by surface
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.
Copings and trims
Coping joints that leak let water straight down into the wall. Sealing them early saves the wall below.
Why deal with it now?
A failed movement joint lets water into the wall and can run behind render or cladding. Dealing with it early keeps the repair to the joint, instead of the wall and finishes around it. Where a wall is exposed, as many are in small places like Redlands, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Rather than a set price list, 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 you get with us
- 4.9 on Google from 180+ five-star reviews
- 20+ years of sealant experience
- Old sealant always removed completely
- A 12-month guarantee on all work
Signs you need external mastic in Redlands
A lot of failed joints come down to preparation: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The sealant never bonds properly.
If you can see any of these, it’s time to have the joints looked at:
- Movement joints with cracked, split or missing sealant
- Failed seals between different materials
- Moss and dirt in joints with no sealant left
- Movement joints filled with mortar instead of sealant
Managing a site like Crondall Primary School? Then larger buildings have long runs of movement joint that eventually need resealing.
Before you book anyone
- How long to leave it before use
- How much experience the applicator has
- How the colour is chosen
- Whether they’re fully insured
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
How it works
A visit follows a simple pattern: we check the joints, protect the area around them, do the work and clear up. Most jobs take anything from a few hours to several days, depending on the building. In a small place like Redlands, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- Joint faces are cleaned back and primed if the sealant needs 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
- Mention any sign-in or site rules at work premises
- Tell us about access, such as stairs, a lift or high-level joints
- Move anything stored near the joints
How to get a quote
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or email us.
