Kent · England
External Mastic in Gold Street
Sealing brickwork movement joints, render, cladding and façade joints for Gold Street, backed by a one-year guarantee. Call for a quick quote.
- Damp patches traced to an open external joint
- Joints where the bead has come unstuck
- Failed seals between different materials
Why act early in Gold Street
Pointing a movement joint with mortar might seem a neat fix, but it stops the joint moving. The movement then cracks the brickwork or render nearby. A flexible sealant over backing rod is what the joint needs. Older cottages and farmhouses around Gold Street can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Ask us for a quote and we will explain what it covers.
What you get with us
- ARBOMaster approved applicator
- Rated 4.9 stars on Google
- Neat joints and a tidy finish
- Quality sealants from Arbo and Everbuild
Read what affects the cost or our reviews.
About our external mastic in Gold Street
Getting the depth right is half the job. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, leaving it bonded to two faces so it can move with the wall. Common call-outs are for cracked joints where brick meets render or frames and water getting into walls through failed joints, on render & cladding joints, concrete & block and brickwork movement joints.
Older homes in small places like Gold Street may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water generally gets in.
Whatever the size of the job, you get the same 12-month guarantee.

- Place
- Gold Street (DA12)
- Region
- Kent
- Cover
- 12 months on all our work
- Quotes
- A clear price before work begins
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Signs you need external mastic in Gold Street
If plants are growing out of a joint, the sealant has generally failed or was never there. Roots and dirt hold water against the wall and make things worse.
If you can see any of these, it’s time to have the joints looked at:
- Leaking joints around cladding and façade panels
- Weeds or debris growing in open joints
- Joints with sealant missing in places
- Rain getting behind render or cladding at a joint
Letting a property close to Sole Street station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Comparing quotes
- Which sealant they’ll use, and why
- What guarantee comes with the work
- Are they insured?
- What the cure time is
When it is not the sealant
New sealant can’t fix everything, and we will tell you before we start. Sealant won’t put right:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Failed render or damaged cladding panels
- Cracks in the bricks or render themselves, away from the joints
If in doubt, call 0345 464 0079 or send us an email and we’ll say what we think.
Surfaces we seal
- Copings & trims
- Joints between brick and frames
- Concrete & block
- Brickwork movement joints
- Render & cladding joints
- Façade panels
The process
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. For most jobs that takes anything from a few hours to several days, depending on the building. For a village or hamlet like Gold Street, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- Old sealant and any debris are cut and raked out.
- The joint faces are cleaned and primed where the sealant needs it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Before we arrive
- Where the joints are inside, avoid wetting them before we arrive
- Clear items away from the joints we are working on
- Let us know about stairs, lifts or work at height
Getting a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Related advice
Landlords, agents and businesses in Gold Street
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will give you a quote.
Different surfaces, different methods
Render joints
Cracks along render joints let water in behind the coat. Resealing the joints early keeps water out and protects the render itself.
Cladding and façade panels
If the façade has a specified sealant, that’s what we use, or one the system allows. Send us any details you have about the façade.
Gold Street: your questions answered
I let a flat near Sole Street station. Can you help?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear quote.
Is Gold Street within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
How long does the job take?
A typical job takes a few hours for a handful of joints, longer for a whole elevation, including preparation and clearing up. Your quote will say how long we expect yours to take.
How long should I leave it?
Different products cure at different speeds, so please follow the time we give you when we finish.
Do you guarantee your work?
Yes, for a year. If anything isn’t right with the work within the year, let us know and we’ll sort it.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.
Are you ARBOMaster approved?
Yes. We’re an ARBOMaster approved applicator.
How long does external mastic last?
That depends on the wall, the weather and the movement. Look for splits, hardening or edges coming away and have them redone then.
Should I try it myself first?
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 doesn’t work out, we can still put it right.
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.
Gold Street buildings and the weather
With historic houses such as Cobham College (about 0.6 miles north-east) nearby, there’s older building stock in the area around Gold Street as well as newer homes. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Homes close to St Mary's Room include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant. For site and facilities teams at buildings such as Cobham Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Gold Street is about 3 miles south of Gravesend, in Kent. We carry out external mastic for homes and businesses in Gold Street and the surrounding area. Our area takes in 922 places across Kent. London is on our list too, around 22 miles away.
Work in DA12 is quoted and booked the same way as anywhere else. Neighbouring places we cover for external mastic include Sole Street (1 mile west), Round Street (1 mile north-west), Henley Street (1 mile south-east), Luddesdown (1 mile south-east) and Meopham (1 mile south-west). We also work in nearby towns such as Maidstone (10 miles south-east), Sittingbourne (15 miles east), Dartford (8 miles north-west), Sevenoaks (11 miles south-west), Gravesend (3 miles north) and Tonbridge (14 miles south).
Around Gold Street
Locally, jobs take us to homes and businesses close to The Railway Inn, Camer Park Country Park and Meopham School, among other places. There’s a railway station in Gold Street itself: Sole Street station. Other landmarks nearby include Gravesham Community Hospital (4 miles north) and Gravesham Museum (3.9 miles north). For a walk, there’s Gad's Hill and Ranscombe Farm.
