Kent · England
Well Street External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for homeowners, landlords and businesses in Well Street. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Gaps where render, brick and frames meet
- Sealant pulling away from one side of the joint
- Movement joints with cracked, split or missing sealant
Should I try it myself first?
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
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.
About our external mastic in Well Street
Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible exterior sealant takes up that movement where mortar or filler would crack. If you have old sealant gone brittle and cracked and joints with sealant missing in places, we can put it right, whatever the surface.
Somewhere as small as Well 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.
There’s a 12-month guarantee on every job, whatever its size.
- Location
- Well Street (ME19)
- Wider area
- Kent
- Cover
- A year, on every job
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Your questions about external mastic in Well Street
I let a flat near East Malling station. Can you help?
Yes, we work for letting agents and landlords. You can call 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before we start.
Do you cover smaller places like Well Street?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
How long will you be here?
As a guide, most jobs take a few hours for a handful of joints, longer for a whole elevation. Bigger jobs take longer, and we’ll say how long yours will take.
Do you use backing rod?
That is backing rod, a closed-cell foam. It stops the sealant going in too deep and bonding to three sides so it can flex with the joint.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Does someone need to be in?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Are you fully insured?
Yes. We are fully insured, and we can confirm the details when we quote.
When is the sealant fully cured?
Most sealants are touch-dry well before they’re fully cured. We will give you the cure time for the product we used before we leave.
What sealant work cannot fix
We won’t take on work that will not last, so these are the limits:
- Structural movement, which needs a surveyor or engineer
- Rising or penetrating damp from elsewhere in the wall
- Render that’s blown, hollow or coming away
Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly.
What we seal
- Copings & trims
- Façade panels
- Render & cladding joints
- Brickwork movement joints
- Joints between brick and frames
- Concrete & block
Work for landlords, hotels and businesses
Landlords and letting agents in Well Street can book us as well as householders. Resealing between tenancies keeps a property looking cared for.
In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
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. In a small place like Well Street, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
What you pay reflects the work, not guesswork. That’s why we ask a few questions first and send you a clear quote before work begins.
Why Well Street clients choose us
- Homes, businesses and hotels
- We leave the area clean and tidy
- Trusted Arbo and Everbuild sealants
- Fully insured
Take a look at what affects the cost and customer reviews.
Different surfaces, different methods
Render joints
Water behind render can lead to blown patches. Resealing the joints early keeps water out.
Brickwork movement joints
People sometimes point up a brick movement joint by mistake. Where one has been mortared, we cut it out and reseal it with sealant if the joint can be cleared.
What affects the cost of external mastic
You’ll get a clear quote before any work starts. It’s based on:
- Whether there’s mould to deal with
- The number and length of the joints
- Working hours on commercial sites
- The number of rooms or windows
Doing several joints on one visit is normally more efficient than separate visits. You will get one clear quote for the whole job.
What we need to know
There’s no need for technical detail. It helps if you can tell us:
- Roughly how big the job is
- The type of property
- Photos by email, if that’s easy
- Where the job is, and your postcode
Every job is quoted individually, so the first step is telling us about yours. Simply phone 0345 464 0079 or email us and describe the job.
What external mastic looks like in Well Street
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Old Soar Manor (about 4.9 miles west) are a reminder that the area around Well Street 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.
For landlords with property near East Malling station, outside joints that have cracked can let damp into a rental, so check them between lets. For site and facilities teams at buildings such as The Malling School, larger buildings have long runs of movement joint that eventually need resealing. In the older streets around Church of St James, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Well Street is about 4 miles west of Maidstone, in Kent. Jobs in Well Street get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our area takes in 922 places across Kent, large and small. London is on our list too, about 27 miles from Well Street.
Postcode districts we cover here for external mastic: ME19. We also cover the places around Well Street: East Malling (1 mile north), West Malling (1 mile north-west), Kings Hill (1 mile south-west), Ditton (1 mile north-east) and Red Hill (2 miles south). Further out, we also cover Maidstone (4 miles east), Sittingbourne (14 miles east), Dartford (14 miles north-west), Sevenoaks (10 miles west), Royal Tunbridge Wells (12 miles south-west) and Gravesend (10 miles north).
Landmarks near Well Street
Typical jobs here are in homes near St James the Great Academy, The Rising Sun pub and Manor Park Country Park and the streets around them. The closest station to Well Street is East Malling station, roughly 0.5 miles east. Well-known places in the area include Coldrum Long Barrow (3.5 miles north-west) and Leybourne Castle (1.4 miles north). Not far away are Blue Bell Hill and Burham Down.
What happens on the day
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours to a few days, depending on the length of joint and the access and we leave things clean and tidy. Somewhere like Well Street 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.
How to prepare
- Clear items away from the joints we’re working on
- Mention any tricky access
- Mention any leaks or damp you’ve noticed
Getting a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email photos if that’s easy.