Surrey · England
External & façade joints in Upper Hale, Surrey
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Upper Hale and across Surrey. Fully insured, ARBOMaster approved and guaranteed for a year.
- Water getting into walls through failed joints
- Movement joints filled with mortar instead of sealant
- Old sealant gone brittle and cracked
External mastic for homes and businesses in Upper Hale
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 line blends in. We work on render & cladding joints, façade panels and copings & trims, and the jobs we see most are cracked joints where brick meets render or frames and plants rooting in failed movement joints.
Outbuildings, garages and conservatories around homes in places like Upper Hale add more joints to look after. Leaks normally start at a gutter end, a garage door frame or where an extension meets the house.
A 12-month guarantee comes as standard, so you’re covered after we’ve gone.

- Where
- Upper Hale (GU9)
- Wider area
- Surrey
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Why act early in Upper Hale
A properly done movement joint is an even line in a colour that suits the wall. A rushed bead with no backing looks untidy and does not last, so it pays to do it properly once. Around Upper Hale, water from a failed joint in an older home can soak into timber and plaster, and that’s a much bigger job than renewing the sealant.
Combining jobs into one visit is normally more efficient than separate visits. You will get one clear quote for the whole job.
Why choose Mr Mastic in Upper Hale
- A sealant colour to suit the surroundings
- Arbo and Everbuild products
- Old sealant always removed completely
- Sanitary silicone with an anti-fungal additive in wet areas
What sealant work can’t fix
New sealant can’t fix everything, and we’d rather say so up front. It will not solve:
- Adding movement joints to masonry that has none
- Loose or hollow render, which needs re-rendering
- Rising or penetrating damp from elsewhere in the wall
If in doubt, call 0345 464 0079 or send us an email and we’ll say what we think before you book.
Where we work in Upper Hale
- Copings & trims
- Joints between brick and frames
- Concrete & block
- Render & cladding joints
- Brickwork movement joints
- Façade panels
Upper Hale: your questions answered
I let a flat near Farnham station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
Do you cover smaller places like Upper Hale?
Yes, Upper Hale is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Where is Mr Mastic based?
Our base is in Crawley, and we cover South East England, London and all of Scotland.
Will you leave a mess?
We keep the work tidy. Nearby surfaces are protected.
Do the sealants smell?
That depends on the sealant. Some products have a noticeable smell, others very little.
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.
Which products do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference.
Do you work for hotels and businesses?
Yes. We’ve worked for hotels, offices and other businesses, and we are fully insured.
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so just mention it when you contact us.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
The process
On the day, we look over the joints with you first, so you know exactly what we are doing. Surfaces next to the work are protected before we start. The work usually takes a few hours for a handful of joints, longer for a whole elevation. For a job in Upper Hale, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- 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.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
How to prepare
- Move anything stored near the joints
- On commercial sites, let us know about site rules
- Mention any tricky access
Get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work before giving you a price.
Advice
How the job changes by surface
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. They’re resealed over backing rod with a low-modulus sealant.
Cladding and façade panels
Cladding and façade panels are normally separated by sealed joints. We reseal them with a sealant suited to the panel material.
Walls and rooflines in Upper Hale
With historic houses such as Farnham Castle (about 1.1 miles south) nearby, there’s older building stock in the area around Upper Hale as well as newer homes. 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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For landlords with property near Farnham 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 Hale School, 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 St Mark the Evangelist Church, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Upper Hale is about 2 miles north of Farnham, in Surrey. From the centre of Upper Hale to the outskirts, external mastic is available for homes and businesses alike. Our area takes in 395 places across Surrey. You can also see our page for Reading, about 17 miles away.
Work in GU9 is quoted and booked the same way as anywhere else. External mastic is available to properties on Queens Lane, Ball and Wicket Lane and Upper Hale Road and the roads around them. With the A3016 and B3005 close by, Upper Hale is simple for us to get to. We also cover Heath End (1 mile east), Hale (1 mile south-east), Weybourne (1 mile east), Badshot Lea (1 mile east) and Farnham (2 miles south). Larger places within reach include Guildford (10 miles east), Woking (11 miles north-east), Camberley (7 miles north-east), Frimley (6 miles north-east), Haslemere (11 miles south) and Cranleigh (15 miles south-east).
Landmarks near Upper Hale
Locally, jobs take us to homes and businesses close to Farnham Heath End School, Weybourne LNR and The Six Bells pub, among other places. For rail, the closest station is Farnham station, roughly 1.6 miles south of the centre. A little further out are Fleet Community Hospital (4.3 miles north-west) and Hart Shopping Centre (3.7 miles north-west). Green spaces nearby include Aunt's Pool and Beacon Hill.
How to look after the new joints
After the cure time, these simple habits help:
- Look over the joints every year, ideally after winter
- Avoid pressure-washing directly into sealant joints
- Check the sealant is paintable before painting near it
- Keep movement joints as flexible joints, not mortar
Don’t paint over the new sealant unless we’ve said the product is paintable. Many exterior sealants are not designed to be painted.
If you can see gaps, plants or bare sections in a joint, have it checked. Earlier resealing means a smaller job and a better result.
Also in Upper Hale
What affects the cost of external mastic
Some jobs are bigger than they look, and some smaller. The main factors:
- Any mould that needs treating
- The old material and how stubborn it is
- Any working-time requirements on site
- Access and height
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. You’ll know the price before we begin.
What to tell us for a quote
Before you ask for a quote, have a think about:
- The rough size of the job
- The type of property
- Where the job is, and your postcode
- Whether it has been sealed before
Need a quote? Please phone 0345 464 0079 or send us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
