Medway · England
External & façade joints in Grange, Medway
Professional external mastic in and around Grange, with old sealant always removed completely.
- Water getting into walls through failed joints
- Failed seals between different materials
- Movement joints filled with mortar instead of sealant
Quotes for external mastic in Grange
Call for a quick quote. What matters most is:
- The type of sealant required
- The size of the job
- Mould in or behind the old joints
- The number of rooms or windows
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
What we need to know
When you call or email, these details help:
- What the problem is, such as mould, gaps, leaks or cracking
- Photos by email, if that’s easy
- If someone has resealed it before
- Whether it’s a home or a business
Asking for a quote is easy: let us know the job and the location. Photos by email help us understand the job.
About our external mastic in Grange
Low-level joints can normally be done from the ground. Where joints are higher up, tell us about the building when you get in touch and we will confirm what access is needed. If you have leaking joints around cladding and façade panels and movement joints filled with mortar instead of sealant, we can put it right, on façade panels, joints between brick and frames and copings & trims alike.
Older homes in small places like Grange may be stone, brick or timber-framed, often with later extensions. The joints where those materials meet are the weak points, and they need the right sealant at the right depth.
Each job carries a 12-month guarantee, large or small.
- Location
- Grange (ME7, ME8)
- Wider area
- Medway
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Places near Grange
Also in Grange
Walls and rooflines in Grange
Grange is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. 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 live in an older home near Church of St Mary Magdalen, the joints between older walls, newer extensions and the roofline need a sealant that can move. If you look after a building such as Woodlands Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Letting a property close to Gillingham (Kent) station? Then split movement joints are easy to miss on a rental until damp shows inside.
Grange is about 1 mile north of Gillingham, in Medway. We provide external mastic to homeowners, landlords and businesses in Grange and nearby, as part of our work across Medway. We cover 68 towns and villages across Medway. You can also see our page for Chelmsford, roughly 25 miles from Grange.
Postcode districts we cover here for external mastic: ME7 and ME8. Whether your property is on Grange Road, Lower Featherby Road and Odo Rise or anywhere close by, our applicators can take on the job. We also cover Lower Twydall (1 mile south-east), Twydall (1 mile south), Gillingham (1 mile south), Darland (2 miles south-west) and Hale (2 miles south-west). We also work in nearby towns such as Chatham (3 miles south-west), Rochester (4 miles west), Strood (4 miles west), Park Wood (3 miles south), Lordswood (4 miles south-west) and Hoo St Werburgh (3 miles north).
Near you in Grange
Typical jobs here are in homes near The Robert Napier School, Our Lady of Gillingham Church and Riverside Country Park and the streets around them. Also close by are The Hastings Arms (less than half a mile north-west) and The Robert Napier School (1.1 miles south-west). The nearest railway station is Gillingham (Kent) station, about 1.3 miles west of the centre. Well-known places in the area include Huguenot Museum (3.3 miles west) and Pentagon Shopping Centre (2.4 miles west). Not far away are Bishop Saltings.
What happens on the day
Before we leave, we go over the finished joints with you and explain the cure time. The work normally takes anything from a few hours to several days, depending on the building, depending on the size of the job. Somewhere like Grange needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- We cut out the failed sealant and rake out any dirt or growth.
- We clean both faces of the joint and prime them where the product calls for it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Before we arrive
- Mention any leaks or damp you’ve noticed
- Plan for the work area to be out of bounds to pets and children
- Let us know about stairs, lifts or work at height
Getting a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. Whenever you are ready, phone 0345 464 0079 or send us an email.
Related advice
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Show decorators and builders where the movement joints are
- Keep water from gutters off the wall
- Avoid pressure-washing directly into sealant joints
- Check the sealant is paintable before painting near it
Give the sealant the cure time we tell you before anything rubs against it. Most exterior sealants skin fast but take longer to cure right through.
Act while the splits are small. At that stage it’s a simple cut out and reseal before water has had years to get in.
Why act early in Grange
Done well, a resealed joint is a neat, straight line that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner so it’s worth doing right. Around Grange, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
What it costs depends on the size of the job, how much old material has to come out and access to the work. We give a clear quote before work begins.
Why choose Mr Mastic in Grange
- Over 20 years’ experience
- Full insurance on every job
- Sealant colour chosen to suit
- A choice of colours where the product allows
Take a look at what affects the cost and our reviews.
FAQs for Grange
Will you come out to Grange?
Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Can you help a landlord with a rental near Gillingham (Kent) station?
Yes. We work for landlords and letting agents as well as homeowners. Just call 0345 464 0079 or email us with the address and what needs doing, and we will send you a clear quote.
Where is Mr Mastic based?
Our base is in Crawley, West Sussex, and we work across South East England, London and Scotland.
When is the sealant fully cured?
Most sealants are touch-dry well before they’re fully cured. We’ll tell you how long to leave the joint before we leave.
Will you leave a mess?
No. We work neatly, protect the area around the joints and tidy up afterwards.
Can you quote for more than one area?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
What do you need from me for a quote?
A short description and the location, plus pictures if you have them. If we need more, we will ask.
Can you seal over the old sealant?
No, because it fails. The old sealant always comes out first, so the new joint bonds to clean surfaces.
What the job involves on each surface
Render joints
Render has movement joints and stop beads that need sealing. They’re resealed in a sealant that suits the render.
Joints between dissimilar materials
Each side of the joint may need its own preparation. We prepare both faces so the sealant bonds properly.
Should I try it myself first?
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Landlord and commercial work in Grange
For anyone letting property in or around Grange, several properties can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.