Essex · England

External Mastic in Basildon

We cover Basildon for sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly.

  • Sealant pulling away from one side of the joint
  • Rigid filler in a joint that should flex
  • Rain getting behind render or cladding at a joint

External mastic in Basildon

External mastic in Basildon, done properly

On houses, flats and commercial buildings across Basildon, we reseal joints in brickwork, render, cladding and façade panels. The preparation is the same whatever the wall: clean joint faces and the right depth. If you have leaking joints around cladding and façade panels and old sealant gone brittle and cracked, we can put it right, whatever the surface.

Larger buildings in Basildon have plenty of movement joints, cladding joints and roofline trims. A failed joint lets water behind the brick or render, where it often goes unnoticed for a while.

The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.

Location
Basildon (SS16, SS15, SS14, SS13)
Wider area
Essex
Cover
A year, on every job
Quote
A clear price before work begins
Call
0345 464 0079
Updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

Signs you need external mastic in Basildon

Sometimes a movement joint was filled with mortar or a rigid filler, often by someone who didn’t know what it was for. With the joint locked solid, the movement turns into cracks elsewhere in the wall.

The problems people normally mention when they call include:

  • Leaking joints around cladding and façade panels
  • Damp patches traced to an open external joint
  • Joints where the bead has come unstuck
  • Movement joints with cracked, split or missing sealant

Letting a property close to Basildon station? Then outside joints that have cracked can let damp into a rental, so check them between lets.

What your quote should include

  • Whether you can choose the colour
  • Whether all the old sealant comes out first
  • How the surfaces are prepared before sealing
  • Whether the sealant suits the joint

How to choose a mastic man

Basildon: your questions answered

Can you help a landlord with a rental near Basildon station?

Yes. We work for landlords and agents as well as homeowners. You can phone 0345 464 0079 or email us with the details for a clear quote.

Do older homes in Basildon need their sealant replacing?

In most cases, yes, if it hasn’t been done for a while. Sealant is a maintenance item: how long it lasts depends on use, cleaning and exposure.

Do you guarantee your work?

Yes. All our work carries our 12-month guarantee.

How do I get a quote for external mastic in Basildon?

The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we will talk you through it.

Do you use backing rod?

Backing rod controls the sealant depth and keeps it off the back of the joint. Then the sealant bonds to two faces and can move.

How long should I leave it?

That depends on the sealant used, so please follow the time we give you when we finish.

Are you an approved applicator?

Yes. Mr Mastic is an ARBOMaster approved applicator, and we’re fully insured.

Do I need to be at home?

We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.

External mastic in Basildon: local notes

Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Basildon is one of the post-war new towns. Many homes date from the post-war decades and were built in phases, so whole streets can have gutters, trims and wall joints reaching the end of their life together.

In the older streets around St Martin of Tours, old and new materials meet at the roofline and walls, which is where sealant earns its keep. Managing a site like Ghyllgrove Primary School? Then larger buildings have long runs of movement joint that eventually need resealing.

Basildon is about 24 miles east of London, in Essex. Homes, rented property, offices and hotels in Basildon can book us for external mastic. Every job comes with our 12-month guarantee. 644 places in Essex are on our list, large and small. For nearby work, see our Chelmsford page.

We cover every part of the SS16, SS15, SS14 and SS13 postcode area for external mastic. Local streets include Town Square, St Martins Square and Market Square, all of which we cover. Basildon is on the A13 and A127, which makes it straightforward to reach with everything needed for external mastic. Other places close to Basildon include Lee Chapel (1 mile south-west), Noak Bridge (1 mile north-west), Vange (1 mile south-east), Steeple View (2 miles north-west) and Laindon (2 miles west). Within a short drive, we also cover Chelmsford (11 miles north), Brentwood (8 miles north-west), Maldon (14 miles north-east), Canvey Island (6 miles south-east), Billericay (4 miles north) and Rayleigh (6 miles east). Being one of Essex’s larger places, Basildon has every kind of property, from flats to offices.

Near you in Basildon

We work in homes and buildings around Gloucester Park, Sigered pub and Woodlands School, among other places. There’s a railway station in Basildon itself: Basildon station. Well-known places in the area include Eastgate Shopping Centre (under half a mile south) and Basildon University Hospital (1 mile south). Open spaces near Basildon include Vange Marsh RSPB nature reserve.

Map of Basildon © OpenStreetMap contributors

What we do, step by step

We keep the work tidy and contained to the area we are working on, so you can carry on as normal. The job usually takes a few hours to a few days, depending on the length of joint and the access, and we tell you how long to leave it before we go. In Basildon, we work in everything from flats and family homes to offices and hotels. For each, it helps to know about access, parking and where the joints are.

  1. We look at every joint and agree a colour to suit the wall.
  2. Failed sealant is removed back to clean, sound faces.
  3. Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
  4. We prime the faces where required.
  5. We gun in low-modulus sealant and tool it neatly.

Before we arrive

  • Clear the area around the work
  • Try not to wet indoor joints just before the visit
  • Let us know if you’ve seen damp or leaks

Ask for a quote

Asking for a quote is easy: let us know what needs doing and where. A few pictures by email make the job easier to understand.

Get a quick quote

Read more

What we can’t put right

A few problems are outside what sealant work can do:

  • Loose or hollow render, which needs re-rendering
  • Adding movement joints to masonry that has none
  • Subsidence or other structural problems

If you’re not sure, just phone 0345 464 0079 or drop us an email and we’ll give you a straight answer before booking.

What we seal

  • Brickwork movement joints
  • Render & cladding joints
  • Copings & trims
  • Concrete & block
  • Joints between brick and frames
  • Façade panels

Looking after it afterwards

Aftercare is simple:

  • Get split or bare joints resealed while the damage is small
  • Keep soil, plants and ivy away from the joints
  • Keep movement joints as flexible joints, not mortar
  • Show decorators and builders where the movement joints are

Keep pressure washers away from the sealant. A strong jet can damage the edges of the bead over time.

Act while the splits are small. Then it’s a straightforward cut-out and reseal.

DIY sealant or a professional job?

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.

The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.

For landlords and businesses

Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.

For anyone letting property in or around Basildon, several properties can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.

What the job involves on each surface

Cladding and façade panels

Where a cladding system has its own specified sealant, we follow it. Tell us what the building has when you get in touch.

Render joints

Water behind render can lead to blown patches. A sound joint keeps the render dry behind and protects the render itself.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job