Medway · England
External & façade joints in Chatham Waterfront, Medway
Our applicators work in Chatham Waterfront on sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- Weeds or debris growing in open joints
- Damp patches traced to an open external joint
- Panel joints letting water in
About our external mastic in Chatham Waterfront
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. The colour is chosen to suit the brick or render so the joint doesn’t stand out. If you are dealing with hard, crazed mastic that has stopped moving and sealant pulling away from one side of the joint, we can put it right.
Around Chatham Waterfront, garages, outbuildings and extensions all add to the joints on the outside of a home. Leaks usually start at a gutter end, a garage door frame or where an extension meets the house.
You are covered for a year from the day we finish. If there’s a problem with it, please call 0345 464 0079 or drop us an email.
- Where
- Chatham Waterfront (ME4, ME1, ME7)
- Region
- Medway
- Cover
- A year, on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
When to call us in Chatham Waterfront
Sunlight, wet weather and frost wear exterior sealant down. Over the years it hardens, cracks on the surface and loses its give, so the joint eventually tears or comes away from one side.
Look out for these signs:
- Panel joints letting water in
- Gaps where render, brick and frames meet
- Water getting into walls through failed joints
- Joints with sealant missing in places
In the older streets around Church of St John the Divine, the joints between older walls, newer extensions and the roofline need a sealant that can move.
What your quote should include
- What the cure time is
- Is the old sealant removed completely?
- What happens if they find a problem under the old sealant
- Which sealant they’ll use, and why
Also near Chatham Waterfront
Also in Chatham Waterfront
Landlords, agents and businesses in Chatham Waterfront
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
Why it’s worth doing now in Chatham Waterfront
Mortar or ordinary filler might look like a quick way to close an open joint, but it locks the joint solid. The movement then cracks the brickwork or render nearby. The correct repair is a flexible sealant with the right backing. Around Chatham Waterfront, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we’ll explain what it covers.
Why choose Mr Mastic in Chatham Waterfront
- Approved under the ARBOMaster scheme
- Anti-fungal sanitary silicone in wet areas
- Colour picked to suit the job
- Every job guaranteed for a year
See our cost guide and our reviews.
Different surfaces, different methods
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it. Send us any details you have about the façade.
Joints between dissimilar materials
Different materials may need different primers. Both surfaces are cleaned and primed as the product requires.
What we do, step by step
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself usually takes a few hours for a handful of joints, longer for a whole elevation, depending on how much there is to do. Parking around Chatham Waterfront is generally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- 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.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
Before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- On commercial sites, let us know about site rules
- Keep pets and children clear of the area while we work
Getting a quote
To get a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before any work starts.
Read more
Chatham Waterfront questions
Do you work for landlords with property near Chatham station?
Yes, rental work is part of what we do. 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.
Does the coastal weather in Chatham Waterfront affect outside sealant?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Is it worth trying it myself?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
Can you quote for more than one area?
Yes, and it often makes sense. Doing several areas at once is normally more efficient.
Do the sealants smell?
Possibly a little. Any smell clears as the sealant cures.
Are you fully insured?
Yes. We’re fully insured for domestic and commercial work.
Do you work at height?
It depends on the building. Tell us the height, the number of joints and what’s below them.
Will you leave a mess?
Tidy work is part of the job. Nearby surfaces are protected.
What sealant work cannot fix
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Loose or hollow render, which needs re-rendering
- Cracking across the wall rather than at a joint
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
If you’re not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer.
Where we work in Chatham Waterfront
- Copings & trims
- Joints between brick and frames
- Render & cladding joints
- Brickwork movement joints
- Façade panels
- Concrete & block
Walls and rooflines in Chatham Waterfront
Chatham Waterfront is within about 3 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. Historic houses like Restoration House (about 0.8 miles west) are a reminder that the area around Chatham Waterfront has older buildings as well as new. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth.
Managing a site like Brompton-Westbrook Primary School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Letting a property close to Chatham station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Chatham Waterfront is about 1 mile east of Rochester, in Medway. Anywhere in ME4, we can carry out external mastic at your property. Chatham Waterfront is one of 68 towns and villages in Medway where we work. For nearby work, see our Chelmsford page.
Every address in ME4, ME1 and ME7 is within our area for external mastic. Streets in the area include New Road, Old Road and Ship Lane, and we cover them all. Being close to the A231, Chatham Waterfront is easy for our applicators to reach. Other places close to Chatham Waterfront include Brompton (1 mile north-east), Rochester Riverside (1 mile north-west), Luton (1 mile south-east), Frindsbury (1 mile north-west) and Chatham (2 miles south). Larger places within reach include Rainham (4 miles south-east), Park Wood (4 miles south-east), Lordswood (3 miles south), Twydall (3 miles east), Hoo St Werburgh (3 miles north-east) and Wigmore (4 miles south-east).
Around Chatham Waterfront
Typical jobs here are in homes near King's Arms, St John Fisher RC Comprehensive School and Former Ordnance Store At Chatham Gun Wharf and the streets around them. Other local landmarks include St Michael the Archangel Church (under half a mile south), Fort Pitt Grammar School (0.5 miles south-west) and The Paddock (within half a mile north-east). Chatham Waterfront has its own railway station: Chatham station. Well-known places in the area include St. Bartholomew's Hospital (within half a mile west) and Rochester Castle (1 mile west). For a walk, there’s Gad's Hill and Ranscombe Farm.
What affects the cost of external mastic
Some jobs are bigger than they look, and some smaller. The main factors:
- The number of rooms or windows
- Mould in or behind the old joints
- Whether the work is at height
- The old material and how stubborn it is
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Helping us quote
There’s no need for technical detail. It helps if you can tell us:
- How many joints, rooms or windows are involved
- Any previous sealing or DIY work
- Where the job is, and your postcode
- Photos by email, if that is easy
We quote each job on its own, so start by telling us what you need. Just ring 0345 464 0079 or drop us an email with the details and send photos if you have them.