Kent · England
External Mastic in Speed Gate
Sealing brickwork movement joints, render, cladding and façade joints for homeowners, landlords and businesses in Speed Gate. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Panel joints letting water in
- Joints where the bead has come unstuck
- Rigid filler in a joint that should flex
How we handle external mastic in Speed Gate
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’s needed to reach them safely. We work on façade panels, render & cladding joints and concrete & block, and the jobs we see most are plants rooting in failed movement joints and movement joints with cracked, split or missing sealant.
External sealant needs dry, clean surfaces, so work around Speed Gate is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.
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
- Speed Gate (DA3)
- Region
- Kent
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Leave it or put it right?
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. Older cottages and farmhouses around Speed Gate can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
What you pay reflects the work, not guesswork. That is why we ask about the job first and send you a clear quote before we start.
What you get with us
- An ARBOMaster approved applicator
- We leave the area clean and tidy
- Arbo and Everbuild products
- A sealant colour to suit the surroundings
Read what affects the cost and what customers say.
Honest limits
In fairness, there are a few things sealant will not fix:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Loose or hollow render, which needs re-rendering
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think before booking.
What we seal
- Concrete & block
- Brickwork movement joints
- Render & cladding joints
- Joints between brick and frames
- Copings & trims
- Façade panels
FAQs for Speed Gate
Is Speed Gate in your area for external mastic?
Yes, Speed Gate is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or send us an email and let us know what needs doing.
Is Speed Gate within the area you cover?
Yes, Speed Gate is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
What do you put in the joint?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll explain our choice.
Are you an approved applicator?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Where do you work from?
Our base is in Crawley, and we work across South East England, London and Scotland.
Can you match the colour of my brickwork?
The aim is a neat, even joint in a colour that suits the wall. Colour is agreed with you before we begin.
Do you work for landlords and businesses?
Yes, we do. Domestic, commercial and hotel work are all part of what we do, and we’re fully insured.
How do you reach high-level joints?
That depends on how high the joints are and the ground below. Low-level joints are straightforward; for higher ones, send details and we’ll confirm the access.
Landlords, agents and businesses in Speed Gate
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll give you a quote.
We work for letting agents and landlords as well as homeowners. Resealing between tenancies keeps a property looking cared for.
What happens on the day
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a few hours to a few days, depending on the length of joint and the access and we leave things clean and tidy. In a small place like Speed Gate, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Preparing for the visit
- Let us know about parking restrictions
- Let us know if you’ve seen damp or leaks
- Mention any tricky access
Getting a quote
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we’ll talk you through the work and send you a clear quote.
Related advice
Outside joints around Speed Gate
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Lullingstone Castle (about 3.2 miles west) nearby, there’s older building stock in the area around Speed Gate as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
Historic houses such as Lullingstone Castle, about 3.2 miles west, show how far back building around Speed Gate goes. For site and facilities teams at buildings such as Longfield Academy, larger buildings have long runs of movement joint that eventually need resealing.
Speed Gate is about 5 miles south of Dartford, in Kent. Our applicators cover external mastic for homes and businesses in Speed Gate. Across Kent, we cover 922 places, and Speed Gate is one of them. Our London page covers work nearby.
Here we cover the DA3 postcode area for external mastic. Other places close to Speed Gate include Fawkham Green (1 mile south-east), West Yoke (1 mile east), Ash (1 mile south-east), Maplescombe (2 miles south-west) and West Kingsdown (2 miles south). We also work in nearby towns such as Maidstone (13 miles south-east), Dartford (5 miles north), Sevenoaks (7 miles south-west), Gravesend (6 miles north-east), Tonbridge (12 miles south) and Northfleet (5 miles north-east).
Near you in Speed Gate
We work in homes and buildings around The Rising Sun pub, among other places. Speed Gate’s nearest station is Longfield station, about 2.3 miles north-east of the centre. A little further out are Darent Valley Hospital (4.5 miles north) and Eynsford Castle (2.4 miles west).
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Common problems we fix in Speed Gate
Using the wrong sealant is another common reason. A stiff, general-purpose sealant can’t cope with a joint that moves a lot, and it tears off the sides.
Common reasons people contact us include:
- Panel joints letting water in
- Gaps where render, brick and frames meet
- Sealant pulling away from one side of the joint
- Weathered mastic that no longer stretches
For landlords with property near Longfield station, outside joints that have cracked can let damp into a rental, so check them between lets.
Comparing quotes
- The length of the guarantee
- How the colour is chosen
- How the surfaces are prepared before sealing
- Which sealant they’ll use, and why
Different surfaces, different methods
Joints between dissimilar materials
Wherever two materials meet, they move differently. We seal the joint with a flexible exterior sealant so the movement is taken up.
Cladding and façade panels
Metal and composite panels move a lot with temperature, so the joint sealant has to cope with frequent movement. We choose the product to suit.