Aberdeen · Scotland

Sand mastic for sash & case windows in Northfield, Aberdeen

We cover Northfield 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 and every job guaranteed for a year.

  • Crumbling sand mastic round a window
  • Gaps between timber frames and stone or brick
  • Tired mastic found when preparing windows for paint

Book sand mastic in Northfield

Surface by surface

Sash and case windows

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

Period and listed homes

Many older homes were built with sand mastic round the windows. On listed buildings, check with your planning authority first.

About our sand mastic in Northfield

We renew sand mastic around sash windows and doors in stone and brick. Out comes the old, loose mastic, the joint is prepared and new mastic is shaped by hand. We’re often asked to deal with draughty sash windows at the surround and a silicone bead on a sash window that spoils the look, across brick reveals, period & listed homes and tenement windows.

Tenement flats in Scotland’s cities often have windows high above the street, where failing mastic is easy to miss. For a flat in Northfield, access is the first thing to plan.

You are covered for a year from the day we finish. If there’s a problem with it, please drop us a line at info@mrmastic.co.uk.

Applicator reaching up to seal an external door frame on a sunny day
Where
Northfield (AB16, AB21)
Wider area
Aberdeen
Cover
A year, on every job
Quotes
A clear quote up front
Email
info@mrmastic.co.uk
Updated
26 October 2026

DIY sealant or a professional job?

Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.

If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.

FAQs for Northfield

Can you do sand mastic in Northfield?

Yes. We work across all of Scotland, and Northfield is part of that. Just email us at info@mrmastic.co.uk with a few details of the job.

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

Yes, landlords and agents are among the people we work for. Just email us at info@mrmastic.co.uk with the address and what needs doing, and we will send you a clear quote.

How long does sand mastic take?

Most jobs take a few hours for a single window, longer for several. Your quote will say how long we expect yours to take.

Will you leave a mess?

No. We protect the surfaces around the joints, and we tidy up before we go.

Do you work for hotels and businesses?

Yes. Hotels, offices and other businesses use us.

Do I need to be at home?

Access is agreed with you when the job is booked. For inside work, that normally means someone being in.

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

Size, access and the old material all affect the cost. Call for a quick quote and we will talk you through it.

Is it worth trying it myself?

Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it does not work out, we can redo it.

Keeping the joints in good condition

Joint life depends on how it’s used and looked after. Here’s what we suggest:

  • Sort the mastic before the decorators arrive
  • Don’t paint over the new mastic
  • Get any rot dealt with first
  • Check with your local planning authority if your home is listed

Don’t run silicone over the new mastic. If anything cracks, get it looked at rather than patching it.

Once mastic starts to crumble, rain gets in. It can soak into the frame and the surrounding masonry so early renewal protects both.

What we cannot put right

Sealant isn’t the answer to every problem, and we will tell you before work begins. It will not solve:

  • Decisions on consent for listed homes
  • Timber that has rotted
  • Sash cords, weights and draught-proofing of the sashes

Not sure which it is? You can send an email to info@mrmastic.co.uk and we will tell you honestly before you book.

Where we work in Northfield

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

Northfield homes and the weather

Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that. With historic houses such as Friendville (about 2.5 miles south-east) nearby, there’s older building stock in the area around Northfield as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.

Schools such as Northfield Academy are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. Friendville, about 2.5 miles south-east, is one of the historic houses in the wider area around Northfield. Letting a property close to Aberdeen station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.

Northfield is about 2 miles north-west of Aberdeen, in Aberdeen. Anywhere in AB16, we cover sand mastic for homes and businesses. Northfield is one of 63 towns and villages in Aberdeen we cover for sand mastic.

All of AB16 and AB21 is within our area for sand mastic, from the main roads to the quietest streets. If you need sand mastic at a property on Tay Road, Quarry Road and Deveron Road or anywhere close by, we can help. Nearby, we also carry out sand mastic in Cummings Park (1 mile east), Mastrick (1 mile south), Bucksburn (1 mile north-west), Summerhill (1 mile south) and Cornhill (1 mile south-east). Larger places within reach include Ferryhill (3 miles south-east), New Aberdeen (3 miles south-east), Dyce (3 miles north-west), Portlethen (7 miles south), Cults (3 miles south) and Braeside (3 miles south).

Around Northfield

In Northfield, that means homes and buildings near Stewart Park and Bucksburn Academy. The nearest railway station is Aberdeen station, about 2.9 miles south-east of the centre. Nearby you will also find Mar's Castle (2.7 miles east) and Gordon Highlanders Museum (2.1 miles south). Not far away are Rubislaw Quarry and Gallows Hill.

Map of Northfield © OpenStreetMap contributors

Why it’s worth doing now in Northfield

A silicone bead can be quicker, but it can look wrong on a period surround. Sand mastic suits the building and blends with the stone or brick. For landlords in Northfield, damp and leaks can be a Repairing Standard issue, so it’s worth fixing failed sealant before a tenant reports it.

A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.

Why choose Mr Mastic in Northfield

  • Every job guaranteed for a year
  • Old sealant always removed completely
  • Rated 4.9 stars on Google
  • Full insurance on every job

Take a look at how sealant jobs are priced and our reviews.

What affects the quote in Northfield

We do not publish a price list, because jobs vary so much. What we look at:

  • The size of the job
  • How easy the joints are to reach
  • Whether old sealant or filler has to be cut out
  • The type of sealant required

What it costs depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You’ll have a clear quote before any work starts.

Asking for a quote

What to tell us when you ask for a quote:

  • Where the property is
  • If someone has resealed it before
  • Any access issues, like height or stairs
  • The problem you’ve noticed

It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. Whenever you are ready, drop us a line at info@mrmastic.co.uk.

What happens on the day

Before we leave, we go over the finished joints with you. The work normally takes a few hours for a single window, longer for several, depending on the size of the job. In a city area like Northfield, parking may be by permit or pay-and-display, so tell us what’s nearby. If you are in a flat, let us know how we get in at the street door.

  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. We point the joint with sand mastic by hand.
  5. The finish is dressed neatly.

How to prepare

  • Tell us about access, such as stairs, a lift or high-level joints
  • Clear items away from the joints we are working on
  • On commercial sites, let us know about site rules

How to get a quote

If you’re in Northfield and need sand mastic, email us at info@mrmastic.co.uk. Tell us what the problem is and where, and we’ll agree the price before any work begins.

Get a quick quote

Advice

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