Kent · England
External Mastic in Lower Hardres
Specialist external mastic for Lower Hardres: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Joints with sealant missing in places
- Failed seals between different materials
- Panel joints letting water in
Common problems we fix in Lower Hardres
A lot of failed joints come down to preparation: dusty or wet faces, no primer where one was needed, or old sealant left in. The sealant never bonds properly.
People usually contact us when they notice one of these:
- Joints with sealant missing in places
- Gaps where render, brick and frames meet
- Rain getting behind render or cladding at a joint
- Panel joints letting water in
For an older house near a landmark such as Church of St Mary, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Before booking anyone
- What the cure time is
- What preparation is included
- Which sealant they’ll use, and why
- Whether VAT is included
External mastic for homes and businesses in Lower Hardres
A movement joint is a deliberate break that lets a wall expand and contract. Its sealant has to flex with the building, season after season, and when it fails, the wall takes the strain and water finds a way in. We are often asked to deal with damp patches traced to an open external joint and weeds or debris growing in open joints, on concrete & block, brickwork movement joints and façade panels.
Around Lower Hardres, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Location
- Lower Hardres (CT4)
- Region
- Kent
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Why act early in Lower Hardres
Resealing a run of joints in one go is normally better than patching one at a time. Joints of the same age tend to fail together. Older cottages and farmhouses around Lower Hardres can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we will talk you through it.
Why choose Mr Mastic in Lower Hardres
- Domestic, commercial and hotel work
- One-year guarantee on every job
- White, clear, grey or another colour, product permitting
- Anti-fungal silicone where joints get wet
Read our cost guide and what customers say.
What we do, step by step
The work is kept neat and contained to the joints we’re treating. The job normally takes a few hours to a few days, depending on the length of joint and the access. In a small place like Lower Hardres, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
- The faces are brushed clean and primed where the product requires 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
- Tell us about access, such as stairs, a lift or high-level joints
- Let us know if you’ve seen damp or leaks
- Let us know about earlier repairs to the joints
Get a quote
Need a quote? Please ring 0345 464 0079 or drop us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Advice
Lower Hardres: your questions answered
Is Lower Hardres in your area for external mastic?
Yes. We work across London and the South East, and Lower Hardres is part of that. You can ring 0345 464 0079 or send us an email and let us know what needs doing, and we’ll give you a clear price.
Do you work for landlords with property near Canterbury East station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we’ll send you a clear quote.
Can a movement joint be filled with mortar?
No, not if it’s a movement joint. Pointing it stops it working. We’ll reseal it with a flexible sealant.
Is there a guarantee?
Yes: twelve months. If anything isn’t right with the work within the year, let us know and we will sort it.
Can you seal over the old sealant?
No. Fresh sealant does not stick to old sealant, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
When will the joints need doing again?
It depends on the exposure, the movement and the product. Treat it as a maintenance item and look at it yearly and reseal when it splits.
Do you seal joints where cladding meets other materials?
Yes. Materials like render, brick, metal and uPVC all move differently, so the joint between them must be flexible. The sealant is matched to both sides.
Will you leave a mess?
Tidy work is part of the job. Nearby surfaces are protected.
How we quote for external mastic
Your quote is based on your job. We look at:
- Whether there’s mould to deal with
- The product the joint needs
- Whether old sealant or filler has to be cut out
- The number and length of the joints
Doing several joints on one visit generally makes better use of the time than several visits, so tell us about everything that needs sealing. We’ll give you a clear quote for the lot.
Helping us quote
What to tell us when you ask for a quote:
- What’s wrong with the joints now
- If it’s domestic, commercial or a hotel
- Pictures of the joints, sent by email
- Where the property is
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. When it suits you, call 0345 464 0079 or send us an email.
Also near Lower Hardres
Other services in Lower Hardres
Surface by surface
Cladding and façade panels
Panels heat up and cool down quickly, so the joints work hard every day. The sealant is chosen with that in mind.
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. Their movement joints are sealed over backing rod with a flexible sealant.
Landlord and commercial work in Lower Hardres
Housing providers, facilities teams and property managers book us too in Lower Hardres and across Kent. We can quote a run of properties together.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will quote.
What sealant work can’t fix
We’ll always be straight with you, so here’s what sealant cannot fix:
- Adding movement joints to masonry that has none
- Cracking across the wall rather than at a joint
- Structural movement, which needs a surveyor or engineer
If in doubt, call 0345 464 0079 or email us and we will say what we think before you book.
What we seal
- Joints between brick and frames
- Façade panels
- Concrete & block
- Brickwork movement joints
- Render & cladding joints
- Copings & trims
What external mastic looks like in Lower Hardres
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.
If you look after a building such as Simon Langton Grammar School for Boys, larger buildings have long runs of movement joint that eventually need resealing. Letting a property close to Canterbury East station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Lower Hardres is about 3 miles south of Canterbury, in Kent. Wherever you are in the CT4 postcode area, we can carry out external mastic at your property. Our area takes in 922 places across Kent, large and small. For nearby work, see our Chelmsford page, about 43 miles away.
Jobs for external mastic in CT4 is quoted and booked the same way as anywhere else. If you’re just outside Lower Hardres, we cover Street End (1 mile north), Pett Bottom (1 mile south-east), Nackington (1 mile north), Upper Hardres (1 mile south) and Petham (2 miles south-west). Larger places within reach include Ashford (11 miles south-west), Canterbury (3 miles north), Dover (12 miles south-east), Folkestone (11 miles south), Whitstable (8 miles north) and Deal (14 miles east).
Local landmarks in Lower Hardres
In Lower Hardres, that means homes and buildings near The Duck pub. Lower Hardres’s nearest station is Canterbury East station, about 2.7 miles north of the centre. A little further out are Kent and Canterbury Hospital (2.2 miles north) and Whitefriars Shopping Centre (2.9 miles north). For a walk, there’s Blean Woods RSPB Reserve.