Greater London · England

External & façade joints in Ickenham, Greater London

External mastic for Ickenham and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.

  • Damp patches traced to an open external joint
  • Plants rooting in failed movement joints
  • Movement joints with cracked, split or missing sealant

External mastic near Ickenham

Landlord and commercial work in Ickenham

We also work for property managers and facilities teams. We can quote a run of properties together, and we’re fully insured.

In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.

About our external mastic in Ickenham

We are ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Porous or awkward surfaces are primed where the sealant needs it and we use one wherever it does. If you are dealing with panel joints letting water in and movement joints filled with mortar instead of sealant, we can put it right, whatever the surface.

Modern London flats rely on sealed movement joints and cladding joints. Older terraces have their own weak points: gutter joints, roofline trims and the joint where an extension meets the original wall.

All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Where
Ickenham (UB10)
Region
Greater London
Cover
A year, on every job
Quote
Quoted before any work starts
Phone
0345 464 0079
Last updated
26 October 2026

What external mastic looks like in Ickenham

London terraces and converted houses often share gutters, downpipes and walls, so it’s worth agreeing who is responsible before work starts. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

Homes close to St Giles' Church include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain. Schools such as The Douay Martyrs Catholic School are buildings too, and larger buildings have long runs of movement joint that eventually need resealing.

Ickenham is about 1 mile north of Hillingdon, in Greater London. Ickenham gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Our Greater London coverage runs to 764 places, Ickenham among them. There’s also a page for London, about 16 miles away.

Every address in UB10 is covered for external mastic, from the main roads to the quietest streets. Local streets include Long Lane, Court Road and The Avenue. If you are just outside Ickenham, we cover Hillingdon (1 mile south), Ruislip Gardens (2 miles east), New Denham (2 miles west), Newyears Green (2 miles north) and Uxbridge (2 miles south-west). Within a short drive, we also cover City of Westminster (13 miles east), Marylebone (13 miles east), Kensington (11 miles east), St Pancras (14 miles east), Hampstead (12 miles east) and Brompton (13 miles east).

Near you in Ickenham

We work in homes and buildings around Glebe Primary School, Church Field Gardens and Vyners School, among other places. Ickenham’s nearest station is West Ruislip station, about 0.9 miles north-east of the centre. Well-known places in the area include Hillingdon Hospital (2.3 miles south) and The Chimes (1.4 miles south-west). Open spaces near Ickenham include Northala Fields and Horse Shoe Bay.

Map of Ickenham © OpenStreetMap contributors

What the job involves on each surface

Cladding and façade panels

If the façade has a specified sealant, that is what we use, or one the system allows. Tell us what the building has when you get in touch.

Copings and trims

Joints in copings, parapets and trims are exposed to the worst of the weather. Each is resealed with a weatherproof, flexible sealant.

Looking after it afterwards

So the new joints stay in good condition:

  • Leave the joints unpainted unless we’ve said otherwise
  • Keep soil, plants and ivy away from the joints
  • Keep high-pressure jets off the joints
  • Get split or bare joints resealed while the damage is small

Keep pressure washers away from the sealant. High-pressure water can lift the edges over time.

Water getting behind cladding or render can go unnoticed for a long time. By the time there’s a damp patch, the damage can be well established.

Quotes for external mastic in Ickenham

There’s no set price list, because jobs vary so much. The quote depends on:

  • The type of sealant required
  • How easy the joints are to reach
  • The old material and how stubborn it is
  • The number and length of the joints

No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part.

Asking for a quote

When you call or email, these details help:

  • The address or postcode of the job
  • How we’d reach the joints
  • Roughly how big the job is
  • The type of property

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 email photos if that’s easy.

Common problems we fix in Ickenham

Sometimes a movement joint was filled with mortar or a rigid filler by mistake. The joint can’t move, so the wall cracks somewhere else instead.

Keep an eye out for these signs:

  • Gaps where render, brick and frames meet
  • Damp patches traced to an open external joint
  • Brick movement joints where the sealant has split
  • Rigid filler in a joint that should flex

As a London address, Ickenham can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.

What to look for in a quote

  • What product goes in the joint
  • How the joint is cleaned and prepared
  • How much experience the applicator has
  • Is VAT in the price?

Choosing a sealant specialist

Can I do it myself?

If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.

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, then guaranteed for a year.

What we do, step by step

On the day, there’s very little for you to do. Show us the job and we will take it from there. The job generally takes anything from a few hours to several days, depending on the building, including the tidy-up. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. Mention any building rules, key holders or managing agents when you book.

  1. First, the joints are inspected and the access agreed.
  2. We cut out the old mastic and rake out anything in the joint.
  3. The faces are brushed clean and primed where the product requires it.
  4. Backing rod sized to the joint goes in to set the depth.
  5. The exterior sealant is applied, tooled and checked along its length.

Before we arrive

  • Move anything stored near the joints
  • Let us know about parking restrictions
  • Let us know about earlier repairs to the joints

Ask for a quote

To get a quote, phone 0345 464 0079 or email us with the location and a short description of the problem. We will send you a clear quote before any work starts.

Ask for a quote

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Ickenham: your questions answered

Can you help a landlord with a rental near West Ruislip station?

Yes, rental work is part of what we do. You can phone 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before any work starts.

Is parking an issue for external mastic in Ickenham?

It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. That way the visit can be planned around it.

Do you work in Ickenham?

Yes, we do. Ickenham is part of the area we cover, and the service is the same as everywhere else.

What should I tell you?

Let us know what needs doing and where, with pictures by email if possible. If we need more, we will ask.

Can I add another job to the visit?

Of course. Doing several areas at once is generally more efficient.

How long does external mastic last?

There’s no fixed answer: sunny, exposed elevations and busy joints wear faster. Check them each year and reseal when they split or harden. Our work comes with a 12-month guarantee.

Can you seal joints between two different materials?

Yes. Materials like render, brick, metal and uPVC all move differently, so a flexible sealant is needed where they meet. We choose one that suits both surfaces.

Where is Mr Mastic based?

We work from Crawley. We cover Ickenham and the rest of Greater London, along with the rest of our area.

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