Hampshire · England
External & façade joints in Aldershot, Hampshire
We cover Aldershot for sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Failed sealant between panels on a façade
- Old sealant gone brittle and cracked
- Movement joints filled with mortar instead of sealant
How the visit works
We keep the work tidy and contained to the area we’re working on. The job generally takes a few hours to a few days, depending on the length of joint and the access, and we tell you how long to leave it before we go. For a job in Aldershot, we need access to where the work is and somewhere nearby to park. If the job is outside, mention gates, side access and anything above ground floor.
- We start by checking each joint, agreeing the ones to redo and how we will reach them.
- We cut out the failed sealant and rake out any dirt or growth.
- The joint faces are cleaned and primed where the sealant needs it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Preparing for the visit
- Keep pets and children clear of the area while we work
- Tell us if parking is tricky
- Where the joints are inside, avoid wetting them before we arrive
How to get a quote
Need a quote? Please ring 0345 464 0079 or send us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Related advice
How we handle external mastic in Aldershot
Getting the depth right is half the job. 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 plants rooting in failed movement joints and cracked joints where brick meets render or frames, we can put it right, on joints between brick and frames, concrete & block and brickwork movement joints alike.
In a town like Aldershot, older houses with traditional gutters sit alongside newer estates with uPVC rooflines and rendered walls. All of those joints move, so they need a flexible sealant rather than a rigid filler.
You are covered for a year from the day we finish. If anything isn’t right with it, ring 0345 464 0079 or send us an email.
- Place
- Aldershot (GU11, GU12)
- Wider area
- Hampshire
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Aftercare tips
Aftercare is simple:
- Tell anyone working on the walls about the movement joints
- Have failed joints looked at early
- Make sure movement joints aren’t pointed over
- Check the sealant is paintable before painting near it
Make sure anyone working on the wall later knows where the movement joints are. They must stay as flexible joints, never rendered or pointed over.
A joint that has stopped moving pushes the movement elsewhere, often as cracks near the joint. Resealing it early helps prevent that.
Other services in Aldershot
DIY versus a professional finish
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
What external mastic looks like in Aldershot
With historic houses such as Farnham Castle (about 2.7 miles south-west) nearby, there’s older building stock in the area around Aldershot as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. 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.
Managing a site like Talavera Junior School? Then its movement joints, gutters and trims need looking after like any other building’s. Homes close to Church of the Holy Trinity include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Aldershot is about 8 miles west of Guildford, in Hampshire. For external mastic in and around Aldershot, it’s easy to get a quote: please ring 0345 464 0079 or drop us an email. We are based in Crawley and cover Hampshire. Aldershot is one of 683 places in Hampshire we cover for external mastic. There’s also a page for Reading, roughly 17 miles from Aldershot.
Every address in GU11 and GU12 is within our area for external mastic. You will find streets such as Station Road, East Station Road and High Street, all of which we cover. Main roads around Aldershot include the A323 and A325, which makes travel easy. Close by, we work in Weybourne (1 mile south-west), Badshot Lea (1 mile south), Heath End (1 mile south-west), Tongham (1 mile south-east) and Hale (2 miles south-west). Within a short drive, we also cover Basingstoke (15 miles west), Farnborough (3 miles north), Fleet (4 miles north-west), Alton (11 miles south-west), Yateley (7 miles north-west) and Bordon (10 miles south-west).
Landmarks near Aldershot
We work in homes and buildings around All Hallows Catholic School, Prince Consort's Library and Princes Gardens and the streets around them. Aldershot has its own railway station: Aldershot station. A little further out are Royal Army Dental Corps Historical Museum (1.6 miles north) and Farnham Castle (2.7 miles south-west). Green spaces nearby include Claycart Hill and Rowhill Nature Reserve.
Work for landlords, hotels and businesses
Housing providers, facilities teams and property managers book us too in Aldershot and across Hampshire. We can quote a run of properties together, and we’re fully insured for the work.
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 that we can handle for you.
Questions from Aldershot
Can you help a landlord with a rental near Aldershot station?
Yes, rental work is part of what we do. You can call 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before we start.
Is there a guarantee on external mastic in Aldershot?
All our work, in Aldershot and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
Do you work at height?
That depends on the building and the joints. We work on joints that can be reached safely. Tell us about the building and we’ll confirm what access is needed.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us and we are fully insured.
Do you seal joints where cladding meets other materials?
Yes. Different materials move at different rates, so the joint between them must be flexible. The sealant is matched to both sides.
What should I tell you?
Only a few details: the address or postcode, what’s wrong and any access issues. After that, simply call 0345 464 0079 or drop us an email.
What sealant do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
How long does external mastic last?
That varies with the weather the wall faces, how much it moves and the sealant used. Treat it as a maintenance item and look at it yearly and reseal when it splits.
What we cannot put right
Sealant isn’t the answer to every problem, and we’d rather say so up front. Sealant will not put right:
- Subsidence or other structural problems
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Failed render or damaged cladding panels
If in doubt, call 0345 464 0079 or send us an email and we’ll say what we think before booking.
Surfaces we seal
- Façade panels
- Render & cladding joints
- Brickwork movement joints
- Joints between brick and frames
- Concrete & block
- Copings & trims
Why it’s worth doing now in Aldershot
An open joint keeps letting water into the wall with every downpour. Wet masonry is more easily damaged by frost near the open joint, so the damage spreads beyond the joint. Around Aldershot, failed sealant lets water into hidden places, like the floor under a bath, the back of a panel or the inside of a wall. Whatever the joint, failed sealant only gets worse.
We don’t show prices on the website, because the cost depends so much on the job itself. Call for a quick quote and we will talk you through it.
Why Aldershot customers choose us
- Quality sealants from Arbo and Everbuild
- Sanitary silicone with an anti-fungal additive in wet areas
- You choose the colour before work begins
- Colour picked to suit the job
Read what affects the cost or customer reviews.
What we are called out for in Aldershot
Buildings move more than people expect. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. All of that ends up in the joint sealant.
These are the problems we are asked about most:
- Damp patches traced to an open external joint
- Joints with sealant missing in places
- Weeds or debris growing in open joints
- Sealant that has lost its bond to the brick or render
For landlords with property near Aldershot station, split movement joints are easy to miss on a rental until damp shows inside.
Comparing quotes
- Which sealant they’ll use, and why
- Who turns up on the day
- When the joint can take water or movement
- How long the guarantee is