Medway · England
Hoo St Werburgh External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for Hoo St Werburgh, backed by a one-year guarantee. Ask us for a quote.
- Cracked joints where brick meets render or frames
- Rain getting behind render or cladding at a joint
- Movement joints filled with mortar instead of sealant
What sealant work can’t fix
Sealant is not the answer to every problem, and we’d rather say so up front. Sealant won’t put right:
- Loose or hollow render, which needs re-rendering
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Cracked brickwork or render that needs a builder or plasterer
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think.
What we seal
- Façade panels
- Render & cladding joints
- Concrete & block
- Copings & trims
- Joints between brick and frames
- Brickwork movement joints
External mastic in Hoo St Werburgh
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 work on copings & trims, joints between brick and frames and façade panels, and people most often call us about hard, crazed mastic that has stopped moving and plants rooting in failed movement joints.
In a smaller place like Hoo St Werburgh, some homes face open ground, and walls and rooflines facing the weather take the worst of it. That is where gutter joints and wall joints tend to fail first.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Where
- Hoo St Werburgh (ME3)
- Wider area
- Medway
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What the job involves on each surface
Joints between dissimilar materials
Each side of the joint may need its own preparation. Both surfaces are cleaned and primed as the product requires.
Brickwork movement joints
Clay brickwork grows slightly over its life and moves with the weather. The movement joint takes that up, so the sealant in it must stay soft and stretchy.
Can I do it myself?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
What we do, step by step
You do not need to clear the whole room or building before we come, only the area right around the joints. Everything nearby is protected, and the job takes a few hours for a handful of joints, longer for a whole elevation in most cases. Parking around Hoo St Werburgh is normally 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.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- Joint faces are cleaned back and primed if the sealant needs it.
- We fit closed-cell backing rod to control the depth.
- The exterior sealant is applied, tooled and checked along its length.
Before we arrive
- Keep children and pets away from the work area
- Tell us about access, such as stairs, a lift or high-level joints
- Mention any leaks or damp you’ve noticed
Ask for a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email photos if that is easy.
Read more
Do you need external mastic in Hoo St Werburgh?
Many joints fail because they were sealed too deep or with nothing behind them. If the sealant sticks to the back as well as the sides, it cannot stretch and rips as the joint opens.
Any of these means the joints need attention:
- Rigid filler in a joint that should flex
- Weeds or debris growing in open joints
- Sealant that has lost its bond to the brick or render
- Leaking joints around cladding and façade panels
Schools such as Hoo St Werburgh Primary School and Marlborough Centre are buildings too, and larger buildings have long runs of movement joint that eventually need resealing.
What your quote should include
- How the colour is chosen
- How much experience the applicator has
- What the cure time is
- The length of the guarantee
Landlords, agents and businesses in Hoo St Werburgh
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll quote.
We also work for property managers and facilities teams in Hoo St Werburgh and across Medway. Several sites can be quoted together, and we are fully insured for the work.
What external mastic looks like in Hoo St Werburgh
Hoo St Werburgh is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For an older house near a landmark such as Church of St Werburgh, the joints between older walls, newer extensions and the roofline need a sealant that can move. For landlords with property near Gillingham (Kent) station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Hoo St Werburgh is about 4 miles north-east of Rochester, in Medway. Wherever you are in the ME3 postcode area, we cover external mastic for homes and businesses. Across Medway, we cover 68 places, Hoo St Werburgh among them. Chelmsford is on our list too, about 22 miles from Hoo St Werburgh.
Work in ME3 works the same way as everywhere else we cover. Streets in the area include Walters Road, St Johns Road and Bell's Lane, and we cover them all. If you are just outside Hoo St Werburgh, we cover Chattenden (1 mile west), Sharnal Street (1 mile north-east), Lower Upnor (2 miles south-west), Kingsnorth (2 miles east) and Tunbridge Hill (2 miles north-east). Further out, we also cover Gillingham (4 miles south), Chatham (5 miles south), Rochester (4 miles south-west), Rainham (5 miles south-east), Strood (4 miles south-west) and Luton (4 miles south). As one of the bigger places in Medway, Hoo St Werburgh has homes, rented property and businesses of every kind.
Around Hoo St Werburgh
Locally, jobs take us to homes and businesses close to The Hundred of Hoo Academy and The Chequer's Public House, among other places. The nearest railway station is Gillingham (Kent) station, about 2.7 miles south of the centre. Well-known places in the area include Upnor Castle (1.9 miles south-west) and Huguenot Museum (3.5 miles south-west). Green spaces nearby include Bishop Saltings and Gad's Hill.
Quotes for external mastic in Hoo St Werburgh
Every job gets its own quote. This is what makes a difference:
- When we can work, for business premises
- How many rooms, windows or areas are involved
- Any mould that needs treating
- Which sealant suits the joint
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are unsure, ring 0345 464 0079 or send us an email for an honest opinion and a quote.
What to tell us for a quote
What to tell us when you ask for a quote:
- Any previous sealing or DIY work
- How we’d reach the joints
- The address or postcode of the job
- If it’s domestic, commercial or a hotel
For a quote, phone 0345 464 0079 or drop us an email with the location and a short description of the problem. We will give you a clear price before any work starts.
Places near Hoo St Werburgh
Other services in Hoo St Werburgh
Hoo St Werburgh: your questions answered
Does the coastal weather in Hoo St Werburgh affect outside sealant?
Near the sea, outside joints face more wind, rain and salt than they would inland, so the choice of sealant and the preparation matter even more. Walls facing the sea are usually the first to need attention.
Can you help a landlord with a rental near Gillingham (Kent) station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear quote.
Do you cover Hoo St Werburgh?
Yes. We work in Hoo St Werburgh and the rest of Medway. For a quote, phone 0345 464 0079 or email us.
Do you work at height?
That depends on how high the joints are and the ground below. Low-level joints are straightforward; for higher work, tell us about the building and we will confirm what’s needed.
How do I get a quote for external mastic in Hoo St Werburgh?
We do not publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. You will get a clear quote before work begins.
Can a movement joint be filled with mortar?
No. A mortar-filled joint cannot move, so the movement cracks the wall elsewhere. Use a flexible sealant with backing rod.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. Working times can be discussed when we quote.