Fife · Scotland

Sand mastic for sash & case windows in Guardbridge, Fife

We cover Guardbridge for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly.

  • Silicone on a period window that looks wrong
  • Mastic that needs renewing before redecorating
  • Crumbling sand mastic round a window

Sand mastic in Guardbridge

Sand mastic in Guardbridge

For a listed home or one in a conservation area, ask your local planning authority whether consent is needed for work to windows. Sand mastic is often favoured as a like-for-like material. We work on sash and case windows, period & listed homes and stone surrounds, and the jobs we see most are gaps round a timber door in stone or brick and weathered mastic on the most exposed windows.

Outdoor sealant needs a dry surface, so window work around Guardbridge is planned around the weather. Tell us about access to all the windows and doors, upstairs included.

Our work is backed for twelve months, and the guarantee is the same wherever you are.

Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house
Location
Guardbridge (KY16)
Region
Fife
Cover
One year on every job
Quotes
A clear quote up front
Email
info@mrmastic.co.uk
Updated
26 October 2026

Keeping the joints in good condition

Looking after new joints is easy, and it makes a real difference:

  • Clear gutters so water doesn’t pour onto the windows
  • Get any rot dealt with first
  • Look over the window mastic once a year
  • Do not paint over the new mastic

Leave the new mastic unpainted, as traditional guidance advises. If you are redecorating, ask us first.

Sound mastic protects the frame. Failed mastic lets water reach the timber and timber that stays wet can rot.

What we can’t put right

It helps to know what we cannot do:

  • Rotten sashes, sills or window boxes (a joiner’s job)
  • Masonry that needs repairing
  • Planning or listed building consent (your local planning authority decides)

If you are not sure, just send an email to info@mrmastic.co.uk and we’ll give you a straight answer before you book.

Surfaces we seal

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

What we do, step by step

A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, do the work and clear up. It normally takes anything from a few hours to a full day, depending on how many windows. Around Guardbridge, distance and access matter more than parking. Let us know how to find you and how to reach the joints.

  1. We look at the surrounds with you and agree the joints to renew.
  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.

How to prepare

  • Tell us about any previous sealing or DIY attempts
  • Mention any tricky access
  • For business premises, tell us about site rules or sign-in

How to get a quote

Need a quote? Please drop us a line at info@mrmastic.co.uk and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.

Get a price

Related advice

What affects the cost of sand mastic

We quote each job individually. These are the things that affect it:

  • How many rooms, windows or areas are involved
  • How easy the joints are to reach
  • Mould in or behind the old joints
  • How much there is to do

The cost reflects the work involved, not a rough estimate. That is why we ask about the job first and agree the price before starting.

What to tell us for a quote

A few details help us give you an accurate quote. When you get in contact, it helps to mention:

  • The type of property
  • Where the property is
  • The rough size of the job
  • Any previous sealing or DIY work

Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. Whenever you are ready, drop us a line at info@mrmastic.co.uk.

Guardbridge questions

Will you come out to Guardbridge?

Yes, we do. Our work covers the whole of Scotland, from towns to the smallest places. Longer journeys are simply planned in advance.

Does living near the coast affect sand mastic in Guardbridge?

Near the sea, outside joints face more wind, rain and salt than they would inland, so the choice of sealant and the preparation matter even more. Walls facing the sea are normally the first to need attention.

Can new sealant go over the old?

No, it won’t last. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.

Is the work guaranteed?

Our 12-month guarantee applies on every job.

What sealant do you use?

The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.

Can you replace silicone on a period window with sand mastic?

Yes. The silicone is cut out and the joint cleaned before the sand mastic goes in.

Can I do it myself?

Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.

What does sand mastic cost?

Every job is different, so each one gets its own quote. To get one, send an email to info@mrmastic.co.uk and tell us what needs doing and where.

For landlords and businesses

We work for letting agents and landlords as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.

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.

Common problems we fix in Guardbridge

Sand mastic slowly weathers. It hardens, cracks and starts to come away on the stone or timber.

The problems people normally mention when they call are:

  • Failed mastic on an exposed elevation
  • A silicone bead on a sash window that spoils the look
  • Draughts and rain around sash boxes
  • Gaps between timber frames and stone or brick

If you let a flat or house near Leuchars station, any sash windows need sound mastic to keep draughts and rain out.

What to look for in a quote

  • What product goes in the joint
  • Whether all the old sealant comes out first
  • How the colour is chosen
  • How long to leave it before use

How to choose a mastic man

What sand mastic looks like in Guardbridge

Guardbridge is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on the mastic around older windows and doors, especially on the side facing the sea. Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic.

Around Guardbridge, as everywhere, sand mastic is only as good as the preparation behind it.

Guardbridge is about 8 miles south of Broughty Ferry, in Fife. For sand mastic in and around Guardbridge, please send an email to info@mrmastic.co.uk for a quick quote. We’re based in Crawley and cover Fife. Guardbridge is one of 133 places in Fife where we work. We also work in Dundee, about 8 miles from Guardbridge.

Postcode districts we cover here for sand mastic: KY16. That includes homes and businesses on Main Street, Seggie Square and Fort Avenue. We also cover the places around Guardbridge: Leuchars (1 mile north), Balmullo (2 miles north-west), Strathkinness (2 miles south), Lucklawhill (2 miles north-west) and Dairsie (2 miles south-west). Further out, we also cover Leven (12 miles south), St Andrews (4 miles south-east), Cupar (6 miles south-west), Methil (13 miles south), Newport-on-Tay (5 miles north-west) and Anstruther (12 miles south-east).

Landmarks near Guardbridge

Guardbridge’s nearest station is Leuchars station, roughly 0.8 miles north. Nearby you will also find The R&A World Golf Museum (3.8 miles east) and St Andrews Community Hospital (4.2 miles south-east).

Map of Guardbridge © OpenStreetMap contributors

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 doesn’t work out, we can still put it right.

The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.

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