Greater London · England

Sand Mastic in Monks Orchard

Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Monks Orchard, with a one-year guarantee on every job. Ask us for a quote.

  • Mastic worn away on windows facing the weather
  • Draughty sash windows at the surround
  • Tired mastic found when preparing windows for paint

Trusted sand mastic in Monks Orchard

What we do, step by step

At the end, we look at the finished work together and explain the cure time. The visit itself usually takes a few hours for a single window, longer for several, depending on the amount of work. 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 look at the surrounds with you and agree the joints to renew.
  2. Old mastic and any loose material are raked out.
  3. We pack any deep voids first.
  4. We apply the mastic by hand and shape it.
  5. We dress the finish so it sits neatly against the masonry.

Getting ready for the visit

  • Tell us about access, such as stairs, a lift or high-level joints
  • Tell us about any water getting in
  • Plan for the work area to be out of bounds to pets and children

Getting a quote

We don’t publish a price list. Instead, we give you a clear quote for your job. To arrange one, call 0345 464 0079 or drop us an email.

Ask for a quote

Advice

Sand mastic for homes and businesses in Monks Orchard

Sand mastic suits most period window surrounds. On modern frames we’d normally use a flexible sealant, and we will talk through which suits your home. If you’re dealing with failed mastic on an exposed elevation and old cement repairs round a window that have failed, we can put it right, whatever the surface.

Much of London’s older housing was built with timber sash windows, some still in place and some long since replaced. Either way, the mastic between frame and brickwork is what stops draughts and rain getting in, in Monks Orchard as anywhere.

Your job is guaranteed for a year, as with all our work.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Location
Monks Orchard (CR0, SE25, CR9)
Wider area
Greater London
Guarantee
A year, on every job
Price
Quoted before any work starts
Telephone
0345 464 0079
Updated
26 October 2026

Why it’s worth doing now in Monks Orchard

Replacing sash windows is a big decision for a period home and on a listed home, consent may be needed. Where the frames are in good order, new mastic seals the surround. In a flat in Monks Orchard, failed sealant seldom stays inside your own four walls: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.

Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we’ll explain the quote if you ask.

What you get with us

  • An ARBOMaster approved applicator
  • Anti-fungal sanitary silicone in wet areas
  • Every job guaranteed for a year
  • Experience in homes, commercial sites and hotels

Take a look at our cost guide and our reviews.

Frames and glazing around Monks Orchard

In a converted house or block, who looks after the windows depends on the lease, so it’s worth checking before booking. Historic houses like Addington Palace (about 1.8 miles south) are a reminder that the area around Monks Orchard has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.

Letting a property close to Elmers End station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about. Monks Orchard is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.

Monks Orchard is about 2 miles north-east of Croydon, in Greater London. If you need sand mastic in Monks Orchard, it’s easy to get a quote: please ring 0345 464 0079 or email us. We are based in Crawley and cover Greater London, Monks Orchard included. We cover 764 towns and villages across Greater London. You can also see our page for London, roughly 8 miles from Monks Orchard.

Here we cover the CR0, SE25 and CR9 postcode area for sand mastic. You’ll find streets such as Long Lane, Poppy Lane and Homer Road, and we cover them all. If you’re just outside Monks Orchard, we cover Shirley (1 mile south), Shirley Oaks (1 mile west), Addiscombe (1 mile west), Ashburton (1 mile north-west) and Woodside (1 mile north-west). Further out, we also cover London (8 miles north), City of Westminster (10 miles north-west), Marylebone (10 miles north-west), Kensington (10 miles north-west), St Pancras (10 miles north) and Shoreditch (10 miles north).

What’s near Monks Orchard

We work in homes and buildings around Orchard Way Primary School, The Cricketers pub and Ashburton Park. Monks Orchard’s nearest station is Elmers End station, roughly 1.2 miles north of the centre. Well-known places in the area include St George's Walk (2 miles west) and Crystal Palace Museum (2.8 miles north). The countryside around Monks Orchard includes Bramley Bank and Duppas Hill.

Map of Monks Orchard © OpenStreetMap contributors

When it is not the sealant

We won’t take on work that won’t last, so here’s what sealant cannot put right:

  • Damaged stone surrounds
  • Sashes that need overhauling
  • Decisions on consent for listed homes

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

Surfaces we seal

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

Signs you need sand mastic in Monks Orchard

Over the years, sand mastic weathers. It hardens, cracks and starts to come away on the stone or timber.

The most common problems we see are:

  • Gaps round a timber door in stone or brick
  • Wind and rain getting in round a sash window
  • Cement or filler used on old window joints that has cracked
  • Mastic that needs renewing before redecorating

Schools such as Oasis Academy Shirley Park are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.

Before booking anyone

  • How long to leave it before use
  • How much experience the applicator has
  • Is the old sealant removed completely?
  • What preparation is included

Choosing a sealant specialist

Can I do it myself?

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 fails, we can still redo it.

What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.

Monks Orchard questions

Do you cover Monks Orchard for sand mastic?

Yes. Our work covers London and the South East, and Monks Orchard is part of that. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we’ll send you a clear quote.

Is parking an issue for sand mastic in Monks Orchard?

Parking in Monks Orchard, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when you book.

Where are you based?

Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.

Will there be a smell?

Some sealants have a smell while they cure, which fades as it sets. Ventilation helps.

How long will you be here?

That depends on the amount of work, but most jobs take a few hours for a single window, longer for several. We’ll give you a better idea when we quote.

Can I do it myself?

You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.

Can landlords and businesses book you?

Yes. Domestic, commercial and hotel work are all part of what we do.

Do you guarantee sand mastic work?

Our 12-month guarantee covers every job, sand mastic included.

Surface by surface

Sash and case windows

Sash windows are where we do most sand mastic work. We renew the mastic round each box.

Timber door frames

Sand mastic is used round timber door frames too. The method is the same as for windows.

Work for landlords, hotels and businesses

Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.

Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.

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