Kent · England
External & façade joints in Springhead, Kent
External mastic across Springhead and nearby, with old sealant always removed completely and a one-year guarantee.
- Weeds or debris growing in open joints
- Panel joints letting water in
- Movement joints with cracked, split or missing sealant
DIY sealant or a professional job?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
External mastic in Springhead
Movement joints let brickwork, render and cladding expand and shrink without cracking. The sealant in it has to stretch and squeeze for years, so once it splits or hardens, the joint stops working and water gets in. We work on copings & trims, façade panels and render & cladding joints, and common reasons people get in touch are gaps where render, brick and frames meet and sealant pulling away from one side of the joint.
In and around Springhead, older properties sit alongside newer ones, each with its own outside joints. Older gutters and trims need their joints resealed; newer brick and render need their movement joints kept sound.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Place
- Springhead (DA11, DA10, DA13)
- Wider area
- Kent
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026

What external mastic looks like in Springhead
Springhead is within about 3 miles 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. With historic houses such as Cobham College (about 4.1 miles south-east) nearby, there’s older building stock in the area around Springhead as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
If you let a flat or house near Ebbsfleet International station, split movement joints are easy to miss on a rental until damp shows inside. In the older streets around Parish Church of St Botolph, older walls, gutters and the joints where extensions meet them need a flexible sealant. If you look after a building such as Painters Ash Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Springhead is about 1 mile west of Northfleet, in Kent. We provide external mastic to homes and businesses in Springhead and the surrounding area, as part of our work across Kent. Across Kent, we cover 922 places, and Springhead is one of them. London is on our list too, around 19 miles away.
Here we cover the DA11, DA10 and DA13 postcode area for external mastic. Local streets include Gwynn Road, Fleet Road and Roman Road, all of which we cover. Springhead sits on or near the A2, which makes travel easy. Neighbouring places we cover for external mastic include Painters Ash (1 mile south-east), Northfleet (1 mile east), Northfleet Green (1 mile south), Betsham (1 mile south-west) and Ebbsfleet Valley (1 mile west). Within a short drive, we also cover Maidstone (14 miles south-east), Dartford (5 miles west), Sevenoaks (12 miles south-west), Swanley (7 miles west), Kings Hill (11 miles south) and Foley Park (14 miles south-east).
Near you in Springhead
Locally, jobs take us to homes and businesses close to Saint George's Church of England School, The Six Bells pub and Northfleet School for Girls and the streets around them. Springhead’s nearest station is Ebbsfleet International station, roughly 0.9 miles north. A little further out are Bluewater (2.5 miles west) and Gravesham Museum (2 miles north-east). The countryside around Springhead includes Chafford Gorges Nature Park and Sawyers Lake.
The process
There’s no need to move everything out before we come, only the area right around the joints. We protect the rest, and the work takes a few hours to a few days, depending on the length of joint and the access in most cases. Parking around Springhead 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 start by checking each joint, agreeing the ones to redo and how we will reach them.
- The old mastic and anything lodged in the joint is removed.
- 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.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Before we arrive
- Mention any leaks or damp you’ve noticed
- Try not to wet indoor joints just before the visit
- On commercial sites, let us know about site rules
Getting 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 add pictures by email if you can.
Advice
What affects the quote in Springhead
We quote each job individually. This is what makes a difference:
- Access and height
- How many rooms, windows or areas are involved
- The type of sealant required
- The size of the job
Doing several joints on one visit normally makes better use of the time than several visits. You’ll get one clear quote for the whole job.
What to tell us for a quote
Photos help, but a description is a good start. Try to tell us:
- Where the property is
- The problem you’ve noticed
- Whether it’s a home or a business
- How many joints, rooms or windows are involved
We quote each job on its own, so the first step is telling us about yours. Just phone 0345 464 0079 or send us an email with the details and send photos if you have them.
Common questions in Springhead
Does the coastal weather in Springhead 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.
Do you cover smaller places like Springhead?
Yes. Springhead is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you seal joints between two different materials?
Yes. We cut out the old sealant, prepare both faces and reseal with a flexible exterior product. The colour is chosen to suit.
Can you quote for more than one area?
Yes. Just list everything you need and we will quote it together.
Can landlords and businesses book you?
Yes, often. We can quote for several properties at once.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint.
How long should I leave it?
Cure times vary by product and the temperature. Before we leave, we’ll tell you the cure time.
Do you do commercial work?
Yes. We’ve worked for hotels, offices and other businesses.
Towns and villages near Springhead
More services for Springhead
Different surfaces, different methods
Copings and trims
Coping and trim joints face rain and sun head on. Each is resealed with a weatherproof, flexible sealant.
Cladding and façade panels
Panel systems often rely on sealant between and around the panels. We reseal them with a sealant suited to the panel material.
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Clear growth from the base of walls and joints
- Act on the first splits you see
- Point out the joints to other trades
- Keep water from gutters off the wall
Keep the joints clear of soil, plants and climbing growth. Damp material against the sealant shortens its life.
Once a joint cannot move, the wall finds another way, often as cracks near the joint. Resealing it early helps prevent that.
Why act early in Springhead
The longer a joint stays open, the more water the wall takes in. Wet masonry is more easily damaged by frost around the joint, so the problem grows beyond the joint itself. In an older home around Springhead, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
What you pay reflects the work, not a rough estimate. That is why we ask a few questions first.
Why choose Mr Mastic in Springhead
- Anti-fungal sanitary silicone in wet areas
- Experience in homes, commercial sites and hotels
- Old sealant always removed completely
- More than 20 years in sealant work
When something else is needed
We’ll always be straight with you, so here’s what new sealant will not do:
- Walls that need new movement joints cut into them
- Rising or penetrating damp from elsewhere in the wall
- Cracks in the bricks or render themselves, away from the joints
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly.
What we seal
- Brickwork movement joints
- Façade panels
- Concrete & block
- Joints between brick and frames
- Render & cladding joints
- Copings & trims
