Hampshire · England
External Mastic in Upper Farringdon
Sealing brickwork movement joints, render, cladding and façade joints in Upper Farringdon, with a one-year guarantee on every job. Ask us for a quote.
- Rigid filler in a joint that should flex
- Joints with sealant missing in places
- Hard, crazed mastic that has stopped moving
External mastic for homes and businesses in Upper Farringdon
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. We pick a colour that sits well with the wall so the line blends in. If you are dealing with joints where the bead has come unstuck and cracked joints where brick meets render or frames, we can put it right, on copings & trims, joints between brick and frames and render & cladding joints alike.
In a village or hamlet like Upper Farringdon, older cottages and farm buildings often stand in the open, where walls and rooflines take the weather head on. Gutter joints and wall joints there need a sealant that can flex and stay put.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we’ll put it right.

- Where
- Upper Farringdon (GU34)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Quote
- A clear price before work begins
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Landlord and commercial work in Upper Farringdon
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can go on one quote.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll give you a quote.
Walls and rooflines in Upper Farringdon
Historic houses like Bentworth Hall (about 3.9 miles north-west) are a reminder that the area around Upper Farringdon has older buildings as well as new. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
In the older streets around Church of All Saints, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Upper Farringdon is about 3 miles south of Alton, in Hampshire. We carry out external mastic for householders, landlords and businesses in Upper Farringdon and the surrounding area, as part of our work across Hampshire. Across Hampshire, we cover 683 places, and Upper Farringdon is one of them. We also work in Portsmouth, about 21 miles from Upper Farringdon.
We cover every part of the GU34 postcode area for external mastic and the streets around it. If you need external mastic at a property on Church Road, Crows Lane and Gaston Lane or anywhere close by, we can help. Other places close to Upper Farringdon include Farringdon (1 mile south-west), Lower Farringdon (1 mile west), Chawton (2 miles north), Hartley Mauditt (2 miles east) and Alton (3 miles north). Further out, we also cover Basingstoke (12 miles north-west), Winchester (15 miles west), Fleet (13 miles north-east), Horndean (14 miles south), Aldershot (13 miles north-east) and Petersfield (8 miles south).
Near you in Upper Farringdon
In Upper Farringdon, that means homes and buildings near Rose and Crown Inn. The closest station to Upper Farringdon is Alton station, roughly 2.8 miles north of the centre. Other landmarks nearby include The Romany Museum (2.1 miles south-east) and Alton Community Hospital (1.9 miles north). Not far away are Selborne Hill.
Your questions about external mastic in Upper Farringdon
Is Upper Farringdon within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you do external mastic in Upper Farringdon?
Yes, Upper Farringdon is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or drop us an email and tell us what needs doing, and we’ll give you a clear price.
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 will confirm what access is needed.
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.
How long does external mastic take?
It depends on the size of the job, but as a guide it takes anything from a few hours to several days, depending on the building. We’ll give you a better idea when we quote.
Will the new joint stand out?
We aim for a joint that suits the wall rather than one that jumps out. Colour is agreed with you before we begin.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator.
Which products do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Also near Upper Farringdon
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What affects the quote in Upper Farringdon
The quote reflects the job in front of us. We take into account:
- How many areas need sealing
- The size of the job
- The old material and how stubborn it is
- Any mould that needs treating
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are unsure, call 0345 464 0079 or send us an email for an honest opinion and a quote.
What to tell us for a quote
Photos help, but a description is a good start. Try to tell us:
- Any previous sealing or DIY work
- Whether it’s a home or a business
- The rough size of the job
- Access, such as stairs, a lift or height
Getting a quote is simple: let us know what needs doing and where. A few pictures by email make the job easier to understand, and we will come back to you with a quote.
How the job changes by surface
Cladding and façade panels
If the façade has a specified sealant, that is what we use, or one the system allows. Tell us what the building has when you get in touch.
Brickwork movement joints
Brick movement joints are often mistaken for a missing mortar line. Where one has been mortared, we cut it out and reseal it with sealant.
What happens if it’s left?
A properly done movement joint is an even line in a colour that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner, so it pays to do it properly once. Older cottages and farmhouses around Upper Farringdon can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
The cost reflects the work involved, not guesswork. That’s why we ask about the job first.
Why us?
- ARBOMaster approved applicator
- Trusted Arbo and Everbuild sealants
- Tidy, careful work
- 4.9 on Google from 180+ five-star reviews
Read how sealant jobs are priced and our reviews.
When it is not the sealant
Some problems need a builder, plumber or other trade rather than us:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Structural movement, which needs a surveyor or engineer
- Rising or penetrating damp from elsewhere in the wall
If you are not sure, just call 0345 464 0079 or send us an email and we’ll give you a straight answer before booking.
What we seal
- Façade panels
- Concrete & block
- Render & cladding joints
- Joints between brick and frames
- Brickwork movement joints
- Copings & trims
When to call us in Upper Farringdon
Weeds, moss and debris in a joint are a sign the sealant has gone. Dirt and roots then trap moisture in the joint and speed up the damage.
Any of these means the joints need attention:
- Hard, crazed mastic that has stopped moving
- Movement joints filled with mortar instead of sealant
- Movement joints with cracked, split or missing sealant
- Weeds or debris growing in open joints
For landlords with property near Alton station, split movement joints are easy to miss on a rental until damp shows inside.
What your quote should include
- How the colour is chosen
- What product goes in the joint
- Is VAT in the price?
- How long to leave it before use
The process
Good joint work is mostly preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it normally takes a few hours for a handful of joints, longer for a whole elevation. Somewhere like Upper Farringdon needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by walking round the building and agreeing the joints and the access.
- We cut out the old mastic and rake out anything in the joint.
- 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.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- Tell us if parking is tricky
- On commercial sites, let us know about site rules
Get a quote
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 drop us an email.
