Greater London · England

Sand mastic for sash & case windows in Shepherd's Bush, Greater London

Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Shepherd's Bush, backed by a 12-month guarantee. Ask us for a quote.

  • Silicone on a period window that looks wrong
  • Weathered mastic on the most exposed windows
  • Mastic dropping out of the joint

Sand mastic in Shepherd's Bush

Sand mastic in Shepherd's Bush

If your home is listed or in a conservation area, check with your local planning authority whether consent is needed for work to windows. Like-for-like sand mastic is often the preferred finish. If you have old cement repairs round a window that have failed and tired mastic found when preparing windows for paint, we can help, whatever the surface.

London has a lot of flats and conversions, where windows are often on upper floors. Who looks after the outside of the frames can depend on the lease, so check that first, and access in Shepherd's Bush is something to talk through when you book.

The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we will put it right.

Where
Shepherd's Bush (W12, W11, W14)
Region
Greater London
Guarantee
One year on every job
Quote
A clear quote up front
Phone
0345 464 0079
Updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

When something else is needed

New sealant cannot fix everything, and we will tell you before work begins. It won’t solve:

  • Cracked or broken glass
  • Sash cords, weights and draught-proofing of the sashes
  • Rotten sashes, sills or window boxes (a joiner’s job)

Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly.

Joints and surfaces we work on

  • Period & listed homes
  • Brick reveals
  • Sash and case windows
  • Tenement windows
  • Stone surrounds
  • Timber door frames

Windows and doors in Shepherd's Bush

Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. In a converted house or block, who looks after the windows depends on the lease, so check that before you book.

As a London address, Shepherd's Bush can be tricky for parking: tell us about permits, visitor bays or off-street space when you book. If you look after a building such as Addison Primary School, its window and door frames need their mastic kept sound, just like a home’s.

Shepherd's Bush is about 1 mile west of Kensington, in Greater London. We provide sand mastic to homes and businesses in Shepherd's Bush and nearby. 764 places in Greater London are on our list.

Here we cover the W12, W11 and W14 postcode area for sand mastic. Local streets include Bard Road, Stowe Road and Wells Road. Shepherd's Bush sits on or near the A402, so getting to you is simple. We also cover the places around Shepherd's Bush: White City (1 mile north), Holland Park (1 mile east), Notting Hill (1 mile north-east), Kensington (1 mile east) and Notting Dale (1 mile north-east). Further out, we also cover London (5 miles east), City of Westminster (3 miles east), Marylebone (3 miles east), St Pancras (5 miles east), Shoreditch (6 miles east) and Walthamstow (10 miles north-east).

Local landmarks in Shepherd's Bush

We work in homes and buildings around The Cardinal Vaughan Memorial RC School, Corona Theatre School and Polish Library POSK in London, among other places. Other local landmarks include Hammersmith Park (0.5 miles north-west) and The Central Bar (under half a mile east). Shepherd's Bush has its own railway station: Shepherds Bush station. Nearby you’ll also find West 12 Shepherds Bush (under half a mile east) and Culture House (under half a mile west). The countryside around Shepherd's Bush includes WWT London Wetland Centre and The Long Water.

Map of Shepherd's Bush © OpenStreetMap contributors

When to call us in Shepherd's Bush

Sand mastic slowly weathers. It dries out, cracks and loses its grip from the frame or the masonry.

Common reasons people contact us include:

  • Draughts and rain around sash boxes
  • Crumbling sand mastic round a window
  • Weathered mastic on the most exposed windows
  • Open joints round the window box

For landlords with property near Shepherds Bush station, older sash windows in a rental need their mastic kept sound to keep the weather out.

Questions to ask before you book

  • Who turns up on the day
  • How the joint is cleaned and prepared
  • What happens if the job turns out different
  • How long the guarantee is

Choosing a sealant specialist

What affects the quote in Shepherd's Bush

Jobs vary more than people expect. The main factors:

  • How many rooms, windows or areas are involved
  • How easy the joints are to reach
  • How much old sealant there is and how hard it is to remove
  • The number and length of the joints

Combining jobs into one visit generally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We will send you a clear quote for the lot.

Helping us quote

When you call or email, these details help:

  • A few pictures by email, if you can
  • If it’s domestic, commercial or a hotel
  • What the problem is, such as mould, gaps, leaks or cracking
  • Roughly how big the job is

Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. When it suits you, phone 0345 464 0079 or send us an email.

What the job involves on each surface

Timber door frames

Sand mastic is used round timber door frames too. We renew it the same way as on windows.

Period and listed homes

Period homes look their best with traditional materials, and sand mastic is one of them.

How the visit works

All our tools and materials come with us in the van, so there’s nothing for you to buy. Once we have agreed what’s being done, we protect the area and start. Most jobs take a few hours per window, depending on the condition of the joints. 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. We check each window surround and the condition of the joint.
  2. The joint is raked out and cleaned.
  3. Large voids are packed out.
  4. We point the joint with sand mastic by hand.
  5. The finish is dressed neatly.

How to prepare

  • For indoor joints, keep the area dry beforehand if you can
  • Mention any leaks or damp you’ve noticed
  • For business premises, tell us about site rules or sign-in

How to get a quote

Asking for a quote is easy: let us know the job and the location and its rough size. Photos by email help us understand the job, and we will come back to you with a quote.

Ask for a quote

Advice

Landlord and commercial work in Shepherd's Bush

We also work for property managers and facilities teams in Shepherd's Bush and across Greater London. Several sites can go on one quote, and we are fully insured.

If you manage several properties in or around Shepherd's Bush, several properties can be quoted together. Just tell us the addresses and what each one needs, and pictures by email help.

Common questions in Shepherd's Bush

Is Shepherd's Bush in your area for sand mastic?

Yes. Our work covers London and the South East, and Shepherd's Bush is part of that. You can call 0345 464 0079 or email us and tell us what needs doing.

I let a flat near Shepherds Bush station. Can you help?

Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we will send you a clear quote.

How long does the job take?

It depends on the size of the job, but most jobs take anything from a few hours to a full day, depending on how many windows. We will give you a better idea when we quote.

Do I have to be there?

That depends on where the joints are. Inside work needs someone to give us access, and for outside work we will agree access with you when we book.

Is consent needed for window work on a listed home?

Check with your local planning authority. They’ll tell you if consent is needed.

Do you offer different sealant colours?

We’ll suggest a colour to suit the surroundings, from white and clear to greys and other shades. The choice depends on the product the joint needs.

Do you remove the old sealant?

Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.

Which is right for my windows, sand mastic or modern sealant?

That depends on your windows. Period windows in stone or brick normally suit sand mastic and newer frames normally get a flexible sealant.

Should I try it myself first?

If you’ve already had a go yourself, that’s fine. 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. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.

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