Fife · Scotland

Sand mastic for sash & case windows in Letham, Fife

Window and door surrounds in Letham need attention? We cut out the old, prepare the joints and apply the right sealant.

  • Cracked mastic round a front door frame
  • Gaps between timber frames and stone or brick
  • Old sand mastic that has cracked, crumbled or fallen out

Trusted sand mastic in Letham

Do you need sand mastic in Letham?

Water gets into small cracks in the mastic and pushes it out. Windows facing the weather tend to go first.

People usually contact us when they notice something like this:

  • Wind and rain getting in round a sash window
  • Silicone on a period window that looks wrong
  • Old cement repairs round a window that have failed
  • Window mastic to renew ahead of painting

For an older house near a landmark such as Monimail Parish Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.

Comparing quotes

  • What happens if they find a problem under the old sealant
  • Which sealant they’ll use, and why
  • What preparation is included
  • What insurance they hold

10 questions to ask before booking

About our sand mastic in Letham

Sand mastic skins over fairly quickly but full hardening takes longer. Traditionally, sand mastic is left unpainted and we’ll advise if you are redecorating. We work on tenement windows, timber door frames and sash and case windows, and people most often call us about mastic dropping out of the joint and gaps round a timber door in stone or brick.

Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Wind-driven rain finds any gap around a frame or sill.

We guarantee the work for a year. If something isn’t right with it in that time, tell us and we will put it right.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Where
Letham (KY15)
Region
Fife
Cover
One year on every job
Quotes
A clear price before we start
Email
info@mrmastic.co.uk
Last updated
26 October 2026

Keeping the joints in good condition

To keep the joints looking good and working properly:

  • Do not paint over the new mastic
  • Find out about consent before window work on a listed home
  • Go gently near the mastic when preparing windows
  • Keep modern sealant off the mastic

Don’t touch or press the mastic while it hardens. It forms a skin fairly soon, but takes longer to harden fully.

Crumbling mastic lets rain into the joint. That water can reach the timber frame and the wall so early renewal protects both.

Why it’s worth doing now in Letham

An open joint round the frame lets weather in. Water can get to the frame and the masonry, so dealing with it now protects both. In a place like Letham, small leaks are easy to put off, but water through a failed joint keeps working away until it’s fixed.

Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.

What you get with us

  • We never seal over old sealant
  • Rated 4.9 stars on Google
  • 12-month guarantee on every job
  • Tidy, careful work

Take a look at our cost guide and what customers say.

Landlord and commercial work in Letham

In hotels, rooms out of use cost money, so we plan the work room by room. We’ve worked in hotels as well as homes and businesses.

From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.

What sealant work can’t fix

Before booking, it’s worth knowing the limits:

  • Planning or listed building consent (your local planning authority decides)
  • Timber that has rotted
  • Crumbling stone or brickwork round the window

Not sure which it is? You can email us at info@mrmastic.co.uk and we’ll tell you honestly before you book.

Surfaces we seal

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

DIY versus a professional finish

Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.

How it works

There is not much for you to do on the day. Show us the job and we’ll take it from there. The work itself takes a few hours for a single window, longer for several, including the tidy-up. In smaller Scottish places, parking is normally 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. First we agree which joints need doing.
  2. We remove the old, loose mastic.
  3. Deep gaps are packed so the mastic sits at the right depth.
  4. The sand mastic is mixed and pressed into the joint by hand.
  5. We dress the finish so it sits neatly against the masonry.

Preparing for the visit

  • On commercial sites, let us know about site rules
  • Tell us about any previous sealing or DIY attempts
  • Where the joints are inside, avoid wetting them before we arrive

Getting a quote

To get a quote, email us at info@mrmastic.co.uk and tell us where the job is and what the problem looks like. You’ll have a clear quote before any work starts.

Get a price

Related advice

What sand mastic looks like in Letham

With historic houses such as Hill of Tarvit (about 4.7 miles east) nearby, there’s older building stock in the area around Letham as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that.

If you let a flat or house near Ladybank station, cracked sand mastic around sash windows lets in the draughts tenants complain about.

Letham is about 9 miles north of Glenrothes, in Fife. Wherever you are in the KY15 postcode area, we cover sand mastic for homes and businesses. Across Fife, we cover 133 places, Letham among them. Our Dundee page covers work nearby, about 12 miles away.

Every address in KY15 is within our area for sand mastic, from the main roads to the quietest streets. Whether your property is on Monimail Road, School Brae and The Row or anywhere close by, our applicators can take on the job. We also cover the places around Letham: Springfield (3 miles south-east), Ladybank (3 miles south), Lindores (3 miles north-west), Pitlessie (3 miles south-east) and Cupar Muir (3 miles east). Further out, we also cover Kirkcaldy (13 miles south), Glenrothes (9 miles south), Leven (9 miles south-east), St Andrews (12 miles east), Dysart (13 miles south) and Cupar (4 miles east).

Around Letham

For rail, the closest station is Ladybank station, about 2.9 miles south. Well-known places in the area include The Museum of Cipher Equipment (3.8 miles north-east) and Fernie Castle (0.6 miles north-east). Open spaces near Letham include Lindores Loch and Cairnie Hill.

Map of Letham © OpenStreetMap contributors

Questions from Letham

Do you cover Letham for sand mastic?

Yes, Letham 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.

Will you come out to Letham?

Yes, Letham is covered. We work across all of Scotland, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.

Is it worth trying 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.

Are you insured?

Yes. Full insurance covers our work, and we can confirm the details when we quote.

Can I add another job to the visit?

Yes, we can. More than one area can be quoted together.

What is sand mastic?

It’s a mix of sand and a linseed-oil-based binder. It’s built up in the joint by hand and shaped to suit the surround.

Is it possible to paint over sand mastic?

Sand mastic is normally left unpainted, which is what traditional guidance recommends. Ask us before decorating.

What should I tell you?

Only a few details: the address or postcode, what’s wrong and any access issues. Then email us at info@mrmastic.co.uk.

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