Kent · England
External & façade joints in Strood, Kent
External mastic for Strood, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Joints where the bead has come unstuck
- Weathered mastic that no longer stretches
- Rigid filler in a joint that should flex
About our external mastic in Strood
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. We pick a colour that sits well with the wall so the joint doesn’t stand out. We work on copings & trims, joints between brick and frames and brickwork movement joints, and people most often call us about old sealant gone brittle and cracked and joints pointed up with cement by mistake.
External sealant needs dry, clean surfaces, so work around Strood is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.
A 12-month guarantee comes as standard.
- Location
- Strood (TN17)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Quote
- A clear price before work begins
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
How the job changes by surface
Cladding and façade panels
Cladding and façade panels are usually separated by sealed joints. We reseal them with a sealant suited to the panel material.
Copings and trims
Joints in copings, parapets and trims are exposed to the worst of the weather. We reseal them with an exterior sealant suited to the material.
The process
Good joint work is mostly preparation, and we do not rush it. Joints are cleaned back and dried before anything new goes in. All told, the work takes a few hours for a handful of joints, longer for a whole elevation. Somewhere as small as Strood, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Before we arrive
- Let us know if you’ve seen damp or leaks
- Clear items away from the joints we’re working on
- Keep children and pets away from the work area
Get a quote
For a quote, call 0345 464 0079 or email us with the location and a short description of the problem. We will give you a clear quote before any work starts.
Read more
Why deal with it now?
Running new sealant over the old bead rarely lasts. New sealant does not bond well to old, weathered sealant, so the old joint is cut out fully first. Older cottages and farmhouses around Strood can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are unsure, call 0345 464 0079 or email us for an honest opinion and a quote.
Why us?
- We’re fully insured
- Anti-fungal sanitary silicone in wet areas
- Arbo and Everbuild products
- 4.9 on Google from 180+ five-star reviews
Read what affects the cost and customer reviews.
How we quote for external mastic
We do not publish a price list. The quote depends on:
- How many areas need sealing
- Any mould that needs treating
- Which sealant suits the joint
- How much old sealant there is and how hard it is to remove
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Asking for a quote
When you call or email, these details help:
- If it’s domestic, commercial or a hotel
- How we’d reach the joints
- Roughly how big the job is
- What’s wrong with the joints now
We quote each job on its own, so start by telling us what you need. Just call 0345 464 0079 or send us an email with the details, and pictures are welcome.
Strood: your questions answered
Is there a guarantee on external mastic in Strood?
Every job comes with our one-year guarantee, wherever it is. We are also fully insured and ARBOMaster approved.
Is Strood within the area you cover?
Yes. Strood is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do the sealants smell?
Some sealants have a smell while they cure. Opening a window helps.
How long does external mastic take?
That depends on the amount of work, but as a guide it takes a few hours for a handful of joints, longer for a whole elevation. We will tell you when we quote.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
How do you reach high-level joints?
That depends on the building and the joints. Where joints can be reached safely, we will do them. Tell us about the building and we’ll confirm what access is needed.
Is it messy?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us.
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. A few tips:
- Get split or bare joints resealed while the damage is small
- Keep movement joints as flexible joints, not mortar
- Check the sealant is paintable before painting near it
- Look over the joints every year, ideally after winter
Follow the cure time we give you before the joint is knocked or disturbed. Most exterior sealants skin fast but take longer to cure right through.
A joint that has stopped moving pushes the movement elsewhere, often as cracks near the joint. Resealing it early helps prevent that.
What we’re called out for in Strood
Joints sealed without backing rod, or far too deep, rarely last. 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:
- Failed seals between different materials
- Weeds or debris growing in open joints
- Sealant that has lost its bond to the brick or render
- Hard, crazed mastic that has stopped moving
Homes close to Parish Church of St Mary include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant.
Before booking anyone
- Are they insured?
- Which sealant they’ll use, and why
- Which colour the sealant will be
- When the joint can take water or movement
What sealant work cannot fix
Before booking, it’s worth knowing the limits:
- Damp that isn’t coming from the joint
- Walls that need new movement joints cut into them
- Movement that is more than a sealant joint can take
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think.
Joints and surfaces we work on
- Concrete & block
- Façade panels
- Render & cladding joints
- Brickwork movement joints
- Copings & trims
- Joints between brick and frames
External mastic in Strood: local notes
With historic houses such as Smallhythe Place (about 2.6 miles south-east) nearby, there’s older building stock in the area around Strood as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. 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.
Managing a site like Rolvenden Primary School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Strood is about 11 miles south-west of Ashford, in Kent. Our applicators cover external mastic for householders, landlords and businesses in Strood and the surrounding area. Strood is one of 922 towns and villages in Kent we cover. Crawley is on our list too, about 37 miles from Strood.
Every address in TN17 is within our area for external mastic. Streets in the area include Rolvenden Hill and Tenterden Road, all of which we cover. We also cover the places around Strood: Rolvenden (1 mile south-west), Rolvenden Layne (1 mile south), West Cross (1 mile west), Parkgate (2 miles north) and Broad Tenterden (2 miles east). We also work in nearby towns such as Maidstone (15 miles north), Ashford (11 miles north-east), Paddock Wood (14 miles north-west), Bearsted (15 miles north), Park Wood (13 miles north) and Kennington (13 miles north-east).
Around Strood
We work in homes and buildings around Turners Field and Homewood School and Sixth Form Centre and the streets around them. Nearby you will also find The C.M Booth Collection (1 mile south-west) and Benenden Hospital (2.4 miles north-west).