Hampshire · England
External & façade joints in Fleet, Hampshire
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Fleet and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Hard, crazed mastic that has stopped moving
- Failed sealant between panels on a façade
- Movement joints with cracked, split or missing sealant
External mastic in Fleet
Low-level joints can normally be done from the ground. Where joints are higher up, tell us about the building when you get in touch and we will confirm what’s needed to reach them safely. If you have leaking joints around cladding and façade panels and joints with sealant missing in places, we can help.
In a town like Fleet, 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 get a 12-month guarantee, the same in Fleet as everywhere else we work.
- Location
- Fleet (GU51, GU52, GU10)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Why it’s worth doing now in Fleet
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 doesn’t last, so it pays to do it properly once. Draughts from a gap round a frame, damp under a sill or water behind a bath panel all start small, and they’re far easier to fix early.
What it costs depends on the amount of work, how much old material has to come out and access to the work. We give a clear quote before work begins.
Why choose Mr Mastic in Fleet
- We agree the colour with you first
- Sealant colour chosen to suit
- Old sealant always removed completely
- We’re fully insured
See our cost guide or our reviews.
Nearby places to Fleet
Also in Fleet
How to look after the new joints
To keep the joints looking good and working properly:
- Act on the first splits you see
- Wash walls gently around the sealant
- Tell anyone working on the walls about the movement joints
- Look over the joints every year, ideally after winter
Keep the joints clear of soil, plants and climbing growth. Damp material against the sealant shortens its life.
Act while the splits are small. Then it’s a straightforward cut-out and reseal before water has had years to get in.
External mastic in Fleet: local notes
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Farnham Castle (about 4.1 miles south) are a reminder that the area around Fleet has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
Homes close to Fleet Methodist Church include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move. If you let a flat or house near Fleet station, outside joints that have cracked can let damp into a rental, so check them between lets.
Fleet is about 13 miles south-east of Reading, in Hampshire. If you need external mastic in Fleet, please call 0345 464 0079 or send us an email for a quick quote. We are based in Crawley and cover Hampshire. Our area takes in 683 places across Hampshire, large and small. You can also see our page for Reading, about 13 miles away.
Every address in GU51, GU52 and GU10 is covered for external mastic, from the main roads to the quietest streets. That includes homes and businesses on Church Road, Durnsford Avenue and Hankins Court and the roads around them. You will find Fleet on the A323 and A3013, so it’s easy for us to get to. Neighbouring places we cover for external mastic include Church Crookham (1 mile south-east), Crookham Village (1 mile west), Elvetham Heath (1 mile north-west), Dogmersfield (2 miles west) and Elvetham (2 miles north-west). Larger places within reach include Basingstoke (11 miles west), Farnborough (3 miles north-east), Aldershot (4 miles south-east), Alton (10 miles south-west), Yateley (4 miles north) and Tadley (14 miles north-west). Fleet is among the bigger towns we cover in Hampshire.
What’s near Fleet
Around Fleet, our work takes us to homes and buildings near Court Moor School, The Prince of Wales pub and School and the streets around them. The closest station to Fleet is Fleet station, about 1.2 miles north. Nearby you will also find Royal Army Dental Corps Historical Museum (3.9 miles east) and Fleet Community Hospital (1 mile north-west). Not far away are Fleet Pond Nature Reserve and Hitches Hill.
Common questions in Fleet
I let a flat near Fleet station. Can you help?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Is external mastic in Fleet guaranteed?
Every job comes with our 12-month guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
Do the sealants smell?
Sometimes, a little. Any smell clears as the sealant cures.
Can you seal joints between render and window frames?
Yes. Materials like render, brick, metal and uPVC all move differently, so a flexible sealant is needed where they meet. We choose one that suits both surfaces.
Can you match the colour of my brickwork?
There’s a good range of exterior colours, including greys, browns, whites and stone tones. We pick the one that suits your wall best.
Can I add another job to the visit?
Of course. Doing several areas at once is usually more efficient.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator and we’re fully insured too.
Can you seal over the old sealant?
No, it will not last. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
What happens on the day
Once we’re on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a handful of joints, longer for a whole elevation. For a job in Fleet, we need access to where the work is and somewhere nearby to park. For outside work, let us know about side access, gates and any upper-floor joints.
- We start by walking round the building and agreeing the joints and the access.
- 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.
- We fit closed-cell backing rod to control the depth.
- The exterior sealant is applied, tooled and checked along its length.
Preparing for the visit
- Let us know about earlier repairs to the joints
- Tell us if parking is tricky
- For business premises, tell us about site rules or sign-in
Getting a quote
Need a quote? Please phone 0345 464 0079 or email us with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Related advice
Signs you need external mastic in Fleet
Using the wrong sealant is another common reason. A stiff, general-purpose sealant can’t cope with a joint that moves a lot, and it tears off the sides.
The most common problems we see are:
- Weathered mastic that no longer stretches
- Moss and dirt in joints with no sealant left
- Sealant pulling away from one side of the joint
- Movement joints with cracked, split or missing sealant
Managing a site like Heatherside Junior School? Then larger buildings have long runs of movement joint that eventually need resealing.
What to look for in a quote
- What product goes in the joint
- Who turns up on the day
- Whether you can choose the colour
- How the joint is cleaned and prepared
For landlords and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will quote.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Honest limits
A few problems are outside what sealant work can do:
- Cracks in the bricks or render themselves, away from the joints
- Subsidence or other structural problems
- Failed render or damaged cladding panels
If you’re not sure, just ring 0345 464 0079 or email us and we’ll give you a straight answer.
Surfaces we seal
- Façade panels
- Brickwork movement joints
- Render & cladding joints
- Joints between brick and frames
- Copings & trims
- Concrete & block
What affects the cost of external mastic
Jobs vary more than people expect. What affects the quote:
- Any mould that needs treating
- The number and length of the joints
- The number of rooms or windows
- When we can work, for business premises
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Asking for a quote
To make quoting easier, please include:
- The rough size of the job
- Any previous sealing or DIY work
- Pictures of the joints, sent by email
- How we’d reach the joints
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. When it suits you, phone 0345 464 0079 or send us an email.