North Lanarkshire · Scotland

Sand mastic for sash & case windows in Condorrat, North Lanarkshire

Traditional burnt sand mastic around sash and case windows and doors in stone and brick for householders, landlords and businesses in Condorrat. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.

  • Old cement repairs round a window that have failed
  • Open joints round the window box
  • Wind and rain getting in round a sash window

Sand mastic for Condorrat homes and businesses

Sand mastic in Condorrat

Sand mastic has long been used to fill the joint between timber frames and masonry. It’s made from sand and a linseed-oil-based binder, applied by hand. On older homes, it suits the building far better than silicone. If you are dealing with mastic round period door frames that has failed and mastic dropping out of the joint, we can help.

Mastic can only go onto a dry joint, so outside work in Condorrat depends on the weather. Tell us about access to all the windows and doors, upstairs included.

A 12-month guarantee comes as standard, so you’re covered after we’ve gone.

Where
Condorrat (G67, G68)
Region
North Lanarkshire
Cover
A year, on every job
Price
A clear price before work begins
Email
info@mrmastic.co.uk
Page updated
26 October 2026
Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house

How it works

A visit follows a simple pattern: we look at the joints together, protect the area around them, do the work and clear up. Most jobs take a few hours per window, depending on the condition of the joints. In smaller Scottish places, parking is usually less of an issue than access and distance. Let us know how to find you and how to reach the joints, and the visit is planned around that.

  1. We start by checking each surround and agreeing the joints to renew.
  2. Old, loose mastic is raked out and the joint cleaned.
  3. Deep voids are packed so the mastic is the right thickness.
  4. The mastic is mixed, pressed into the joint by hand and shaped.
  5. The mastic is finished to sit tidily against the stone or brick.

Before we arrive

  • Let us know about stairs, lifts or work at height
  • Plan for the work area to be out of bounds to pets and children
  • Mention any sign-in or site rules at work premises

Get a quote

Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work.

Ask for a quote

Advice

Surface by surface

Sash and case windows

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

Tenement and terrace windows

Tenements and terraces often have many sash windows with ageing mastic. We can do one window or several.

Frames and glazing around Condorrat

Condorrat is in the west of Scotland, which is wetter than the east, so there’s plenty of rain for the mastic around older windows and doors to keep out. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.

Letting a property close to Greenfaulds station? Then older sash windows in a rental need their mastic kept sound to keep the weather out. Managing a site like Greenfaulds High School? Then the mastic around its windows and doors needs looking after like any other building’s.

Condorrat is about 1 mile south-west of Cumbernauld, in North Lanarkshire. Condorrat gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Across North Lanarkshire, we cover 89 places, and Condorrat is one of them. Glasgow is on our list too, around 11 miles away.

All of G67 and G68 is within our area for sand mastic. Streets in the area include Achray Road, Airdrie Road and Myvot Avenue. We also cover Westfield (1 mile west), Ravenswood (1 mile north-east), Balloch (1 mile north), Smithstone (1 mile north-west) and Mollinsburn (1 mile south-west). Further out, we also cover Motherwell (10 miles south), Coatbridge (6 miles south), Airdrie (5 miles south), Wishaw (12 miles south), Bellshill (8 miles south) and Kilsyth (3 miles north-west).

Landmarks near Condorrat

The nearest railway station is Greenfaulds station, roughly 1.1 miles east of the centre. Other landmarks nearby include Kilsyth Victoria Cottage Hospital (3.5 miles north-west) and Cumbernauld Castle (2.8 miles north-east). Green spaces nearby include Antermony Loch and Bar Hill.

Map of Condorrat © OpenStreetMap contributors

Looking after it afterwards

No joint lasts for ever, but care makes a real difference. A few tips:

  • Inspect the joints round the windows every year or so
  • Plan mastic work ahead of painting
  • Do not paint over the new mastic
  • Keep modern sealant off the mastic

Check the mastic when you check the paintwork. Small cracks are easier to deal with early.

Renewing mastic before redecorating saves doing it twice. Painting over failed mastic hides the problem for a while.

Should I try it myself first?

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.

If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.

FAQs for Condorrat

Do you cover Condorrat for sand mastic?

Yes, Condorrat is within the area we cover. We work across all of Scotland. You can drop us a line at info@mrmastic.co.uk and tell us what needs doing, and we will send you a clear quote.

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

Yes, we work for landlords and agents. You can drop us a line at info@mrmastic.co.uk with the address and a few details, and we will give you a fixed price before work begins.

What should I tell you?

Let us know what needs doing and where, plus photos if you have them. If we need more, we will ask.

What’s sand mastic made of?

It’s a mix of sand and a linseed-oil-based binder. It’s built up in the joint by hand and finished to sit neatly against the masonry.

Is consent needed for window work on a listed home?

Speak to your local planning authority before work starts. Sand mastic is often favoured as like for like but the decision is theirs.

How do I get a quote for sand mastic in Condorrat?

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.

Are you fully insured?

Yes. Full insurance covers our work.

Do you hold any approvals?

Yes. We hold ARBOMaster approved applicator status and we are fully insured too.

Why act early in Condorrat

New mastic over crumbling mastic won’t hold. We remove the loose material first so the new mastic stays put. Out of town in Scotland, exposed walls take a lot of weather, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.

Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, along with when we can work on site. Call for a quick quote and we will go through it with you.

What you get with us

  • Any old sealant cut out fully, not covered over
  • We leave the area clean and tidy
  • Approved under the ARBOMaster scheme
  • A 12-month guarantee on all work

Take a look at what affects the cost and our reviews.

What affects the quote in Condorrat

Some jobs are bigger than they look, and some smaller. The main factors:

  • How many areas need sealing
  • The product the joint needs
  • Any mould that needs treating
  • The number and length of the joints

There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.

Asking for a quote

The more you tell us, the more accurate the quote. When you ask for a quote, tell us:

  • If someone has resealed it before
  • Whether it’s a home or a business
  • The problem you’ve noticed
  • Photos by email, if that’s easy

For a quote, drop us a line at info@mrmastic.co.uk with the location and a short description of the problem. We’ll give you a clear price before any work starts.

What we cannot put right

A few problems are outside what sealant work can do:

  • Crumbling stone or brickwork round the window
  • Decisions on consent for listed homes
  • Sashes that rattle, stick or won’t open

If you’re not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer.

Surfaces we seal

  • Period & listed homes
  • Tenement windows
  • Sash and case windows
  • Brick reveals
  • Stone surrounds
  • Timber door frames
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job