Highland · Scotland

Lonmore Sand Mastic

Our applicators work in Lonmore on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.

  • Draughty sash windows at the surround
  • Patchy fillers round a sash window
  • Modern sealant on a period surround

Sand mastic for Lonmore homes and businesses

Lonmore questions

Will you come out to Lonmore?

Yes, Lonmore is covered. Our work covers the whole of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.

Do you cover Lonmore for sand mastic?

Yes. We work across all of Scotland, and Lonmore is part of that. You can email us at info@mrmastic.co.uk and let us know what needs doing.

Can I choose the sealant colour?

In most cases you can choose. We’ll explain which colours are available and agree one before work begins.

How long will you be here?

It depends on the size of the job, but as a guide it takes a few hours for a single window, longer for several. We’ll give you a better idea when we quote.

Is it possible to take out silicone and use sand mastic instead?

Yes, we do this often. The old silicone has to come out completely so the mastic beds in well.

Can you work on commercial sites?

Yes. Hotels, offices and other businesses use us, and we are fully insured.

Should I use sand mastic or silicone?

That depends on your windows. On many period windows, sand mastic looks right and suits the building, while modern frames normally get a flexible sealant.

Can you seal over the old sealant?

No. Fresh sealant does not stick to old sealant, and anything trapped underneath, including mould and water, stays there. We remove it all first.

Sand mastic in Lonmore, done properly

Old sand mastic cracks, crumbles and falls out over time, leaving gaps round the window. We rake it out and renew it so the surround looks right again. We work on period & listed homes, tenement windows and stone surrounds, and common reasons people get in touch are failed mastic on an exposed elevation and old cement repairs round a window that have failed.

In and around a place like Lonmore, homes range from older stone-built cottages to newer houses. Wind-driven rain finds any gap around a frame or sill.

All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.

Where
Lonmore (IV55)
Region
Highland
Cover
One year on every job
Price
A clear quote up front
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

What affects the cost of sand mastic

The price is agreed before any work begins. It takes into account:

  • Access and height
  • Which sealant suits the joint
  • Mould in or behind the old joints
  • How many areas need sealing

We do not show prices on the 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:

  • How many joints, rooms or windows are involved
  • A few photos by email, if you can
  • Where the job is, and your postcode
  • If someone has resealed it before

To get a quote, email us at info@mrmastic.co.uk and tell us where the job is and what the problem looks like. We will send you a clear quote before any work starts.

Landlords, agents and businesses in Lonmore

Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.

We work for letting agents and landlords as well as homeowners. Resealing between tenancies keeps a property looking cared for before the next move-in.

Different surfaces, different methods

Tenement and terrace windows

Windows above ground floor need the right access. Let us know the floor and we’ll confirm access.

Period and listed homes

Materials matter on listed and conservation-area homes. Like-for-like sand mastic is generally favoured.

The process

Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself usually takes anything from a few hours to a full day, depending on how many windows, depending on the amount of work. Outside jobs in Lonmore need a dry day, because sealant won’t bond to a wet joint, so external jobs may need to move if the day turns wet. Indoor work goes ahead whatever the weather.

  1. We check each window surround and the condition of the joint.
  2. We rake out the old mastic and clean the joint.
  3. Large voids are packed out.
  4. New sand mastic is applied and shaped by hand.
  5. The finish is dressed neatly.

Preparing for the visit

  • On commercial sites, let us know about site rules
  • Mention any parking rules near the property
  • Tell us about any water getting in

Getting a quote

For sand mastic in Lonmore, email us at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.

Get a price

Advice

Honest limits

We will always be straight with you, so here’s what sealant can’t fix:

  • Cracked or broken glass
  • Whether work needs listed building consent
  • Sashes that rattle, stick or won’t open

Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we will tell you honestly.

Where we work in Lonmore

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

Signs you need sand mastic in Lonmore

Decorating can disturb tired mastic. It’s often found when windows are being prepared for paint.

These are the problems we’re asked about most:

  • Silicone on a period window that looks wrong
  • Cracked mastic round a front door frame
  • Gaps between timber frames and stone or brick
  • Mastic dropping out of the joint

Whether the job is in Lonmore itself or nearby, the right material for each joint matters as much as a neat finish.

Questions to ask before you book

  • What happens if they find a problem under the old sealant
  • Whether all the old sealant comes out first
  • Who turns up on the day
  • When the joint can take water or movement

10 questions to ask before you book

Windows and doors in Lonmore

Lonmore is within about 2 miles of 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, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic.

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

Lonmore is in Highland. Our applicators cover sand mastic for homeowners, landlords and businesses in Lonmore, as part of our work across Highland. Lonmore is one of 253 places in Highland where we work.

Our applicators cover all of IV55 for sand mastic. If you’re just outside Lonmore, we cover Dunvegan (1 mile north-west), Kilmuir (1 mile north-west), Colbost (3 miles west), An t-Aodann Ban (6 miles north-east) and Coillore (8 miles south-east). If you’re somewhere remote, a little more planning is needed, so mention it when you ask for a quote.

Near you in Lonmore

Well-known places in the area include Dunvegan Castle (2 miles north-west) and Giant Angus Macaskill Museum (1 mile north-west). Green spaces nearby include MacLeod's Table.

Map of Lonmore © OpenStreetMap contributors

Keeping the joints in good condition

Simple care keeps the joints in good condition. Our advice:

  • Ask us before painting near the mastic
  • Get any rot dealt with first
  • Keep sills and gutters clear so water drains away
  • Check with your local planning authority if your home is listed

Avoid painting over the new mastic, which is the traditional advice. If you are redecorating, ask us first.

Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.

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