Kent · England
External Mastic in Hassell Street
We cover Hassell Street for sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.
- Cracked joints where brick meets render or frames
- Rigid filler in a joint that should flex
- Sealant pulling away from one side of the joint
External mastic for homes and businesses in Hassell Street
We are ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Some surfaces need a primer before sealing, and we do not skip that step. We work on façade panels, concrete & block and joints between brick and frames, and people most often call us about leaking joints around cladding and façade panels and joints with sealant missing in places.
Somewhere as small as Hassell Street, homes and farm buildings often face open ground, 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.
The work is covered for a year after we finish. If anything isn’t right with it, ring 0345 464 0079 or email us.
- Location
- Hassell Street (TN25)
- Wider area
- Kent
- Guarantee
- One year on every job
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Hassell Street questions
Can you help a landlord with a rental near Wye station?
Yes, we work for landlords and agents. 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 we start.
Will you come out to Hassell Street?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is there any odour?
That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Is there a guarantee?
Yes. Each job is guaranteed for twelve months.
What should I tell you?
Let us know what needs doing and where, plus pictures if you have them. We will ask anything else we need to know.
How long will you be here?
That depends on the amount of work, but most jobs take a few hours for a handful of joints, longer for a whole elevation. We will tell you when we quote.
Can a movement joint be filled with mortar?
No. Mortar locks the joint solid, so the movement cracks the wall elsewhere. Use a flexible sealant with backing rod.
Where are you based?
We’re based in Crawley, West Sussex, and we work across South East England, London and Scotland.
What we do, step by step
We keep the work tidy and contained to the area we’re working on. The job usually takes anything from a few hours to several days, depending on the building, and we explain the cure time before we leave. In a small place like Hassell Street, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We look at every joint and agree a colour to suit the wall.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- Keep children and pets away from the work area
- Mention any tricky access
Get a quote
We do not publish a 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 drop us an email.
Read more
DIY sealant or a professional job?
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
For landlords and businesses
Letting agents and landlords in Hassell Street can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
How we quote for external mastic
There’s no set price list, because no two jobs are the same. What we look at:
- When we can work, for business premises
- How many areas need sealing
- Access and height
- Any mould that needs treating
The cost depends on how much there is to do, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts.
Asking for a quote
What to tell us when you ask for a quote:
- What the problem is, such as mould, gaps, leaks or cracking
- Photos by email, if that is easy
- Where the job is, and your postcode
- How we’d reach the joints
For a quote, call 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We will give you a clear price before any work starts.
Honest limits
In fairness, some problems need a different trade:
- Movement that’s more than a sealant joint can take
- Render that’s blown, hollow or coming away
- Adding movement joints to masonry that has none
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think.
Surfaces we seal
- Concrete & block
- Brickwork movement joints
- Copings & trims
- Joints between brick and frames
- Façade panels
- Render & cladding joints
Towns and villages near Hassell Street
What else we do in Hassell Street
What we are called out for in Hassell Street
Every building moves. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. The sealant in the movement joints takes that strain.
Common reasons people contact us are:
- Old sealant gone brittle and cracked
- Failed seals between different materials
- Leaking joints around cladding and façade panels
- Brick movement joints where the sealant has split
For site and facilities teams at buildings such as Wye School, larger buildings have long runs of movement joint that eventually need resealing.
Before you book anyone
- What insurance they hold
- What product goes in the joint
- What the quote includes, VAT included or not
- Whether you can choose the colour
Hassell Street buildings and the weather
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.
For landlords with property near Wye station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Hassell Street is about 6 miles north-east of Ashford, in Kent. For external mastic in and around Hassell Street, it’s easy to get a quote: please phone 0345 464 0079 or email us. We cover Kent from our Crawley base. Across Kent, we cover 922 places, Hassell Street among them. Our Chelmsford page covers work nearby.
We cover every part of the TN25 postcode area for external mastic. Close by, we work in Folly Town (1 mile south), Hastingleigh (1 mile south), Brook (2 miles south-west), Wye (2 miles west) and Brabourne (3 miles south). We also work in nearby towns such as Ashford (6 miles south-west), Canterbury (8 miles north-east), Dover (14 miles east), Folkestone (10 miles south-east), Whitstable (12 miles north) and Faversham (10 miles north-west).
Landmarks near Hassell Street
In Hassell Street, that means homes and buildings near The Woodmans Arms. Hassell Street’s nearest station is Wye station, roughly 2.7 miles west of the centre. A little further out are William Harvey Hospital (4.2 miles south-west) and Chilham Castle (4.6 miles north). For a walk, there’s Hatch Park.
How the job changes by surface
Render joints
Cracks along render joints let water in behind the coat. A sound joint keeps the render dry behind and helps it last.
Joints between dissimilar materials
Different materials may need different primers. We prepare both faces so the sealant bonds properly.