Dundee · Scotland
Sand mastic for sash & case windows in Ninewells, Dundee
We cover Ninewells for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly.
- Tired mastic found when preparing windows for paint
- Mastic worn away on windows facing the weather
- Old cement repairs round a window that have failed
Why deal with it now?
Not every draught comes from the sashes themselves. Gaps between the frame and the wall can be just as bad and new mastic seals them. Wind-driven rain gets into any failed joint on the outside of a city building, and in Ninewells, damp can spread through stone and plaster before anyone sees it.
Doing several joints on one visit normally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
Why Ninewells clients choose us
- We leave the area clean and tidy
- Rated 4.9 stars on Google
- More than 20 years in sealant work
- An ARBOMaster approved applicator
Sand mastic in Ninewells
Silicone on a period window often looks wrong and is not always the right material. Sand mastic is the traditional choice and we can swap the silicone for it. We work on sash and case windows, period & listed homes and tenement windows, and people most often call us about cement or filler used on old window joints that has cracked and weathered mastic on the most exposed windows.
In a Scottish city, many flats have windows two, three or four floors up, where failing mastic is easy to miss. Access is the first thing to plan for a job in Ninewells.
Our work is backed for twelve months.
- Where
- Ninewells (DD2)
- Region
- Dundee
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
What happens on the day
Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and clear up. Most jobs take a few hours for a single window, longer for several. Parking in city streets around Ninewells can be tight or controlled, so it helps to know about permits or nearby bays. If you are in a flat, let us know how we get in at the street door.
- We start by checking each surround and agreeing the joints to renew.
- We rake out the old mastic and clean the joint.
- Large voids are packed out first, so the mastic isn’t too thick.
- The mastic is mixed, pressed into the joint by hand and shaped.
- We dress the surface so it sits neatly against the masonry.
How to prepare
- Mention any tricky access
- For business premises, tell us about site rules or sign-in
- Let us know if you’ve seen damp or leaks
Getting a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. When it suits you, drop us a line at info@mrmastic.co.uk.
Advice
What sand mastic looks like in Ninewells
Ninewells is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. With historic houses such as Camperdown House (about 1.5 miles north) nearby, there’s older building stock in the area around Ninewells 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.
Rented homes near Invergowrie station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about. If you look after a building such as Menzieshill High School, larger buildings have plenty of frames, and the mastic around each one ages.
Ninewells is about 2 miles west of Dundee, in Dundee. Every kind of property in Ninewells can book us for sand mastic, old or new, large or small. Every job comes with our 12-month guarantee. 50 places in Dundee are on our list.
All of DD2 is covered for sand mastic, from the main roads to the quietest streets. Whether your property is on Gala Avenue, Hazel Avenue and Pasteur Lane or a nearby road, our applicators can take on the job. We also cover the places around Ninewells: Menzieshill (1 mile north-east), Charleston (1 mile north), Gowrie Park (1 mile north-west), Balgay (1 mile east) and Invergowrie (1 mile north-west). Within a short drive, we also cover Broughty Ferry (7 miles east), Stobswell (3 miles east), Monifieth (8 miles east), Barnhill (7 miles east), Pitkerro (4 miles east) and Whitfield (5 miles east).
Near you in Ninewells
Locally, jobs take us to homes and businesses close to Cox Branch Library and Balgay Hill and the streets around them. The nearest railway station is Invergowrie station, roughly 0.9 miles south-west of the centre. Nearby you’ll also find Tayside Medical History Museum (1.8 miles east) and Dudhope Castle (2.1 miles east). Open spaces near Ninewells include Balgay Hill and Trottick Mill Ponds.
What affects the cost of sand mastic
The quote reflects the job in front of us. We take into account:
- Which sealant suits the joint
- How many rooms, windows or areas are involved
- How much old sealant there is and how hard it is to remove
- Any working-time requirements on site
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
What to tell us for a quote
When you call or email, these details help:
- Where the job is, and your postcode
- Any access issues, like height or stairs
- The rough size of the job
- If it’s domestic, commercial or a hotel
Want a quote for sand mastic? Please email us at info@mrmastic.co.uk with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Towns and villages near Ninewells
Also in Ninewells
DIY versus a professional finish
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly.
What the job involves on each surface
Sash and case windows
Sash windows are where we do most sand mastic work. Each joint round the box is raked out and renewed.
Stone surrounds
Sand mastic sits naturally against stone. It finishes to look like part of the surround.
Ninewells questions
How do repairs to the shared parts of a tenement in Ninewells get organised?
Shared parts of a tenement, such as the roof and outside walls, are normally repaired with the agreement of the owners, often through a property factor. Where the title deeds are silent, the Tenements (Scotland) Act 2004 fills the gaps. Windows often belong to the individual flat, but it’s worth checking your deeds.
I let a flat near Invergowrie station. Can you help?
Yes, rental work is part of what we do. Just email us at info@mrmastic.co.uk and tell us about the property, and we’ll send you a clear quote.
What should I tell you?
Only a few details: the address or postcode, what’s wrong and any access issues. After that, simply send an email to info@mrmastic.co.uk.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice.
Should I use sand mastic or silicone?
For period timber windows in stone or brick, sand mastic is often the better fit. Modern frames normally suit a flexible sealant, and we’ll explain why.
Is there any odour?
Possibly a little. It fades as the sealant cures, and ventilation helps.
Are you fully insured?
Yes, we’re fully insured for domestic and commercial work.
Can sand mastic be painted?
It’s traditionally left unpainted, which is what traditional guidance recommends. Ask us before decorating.
When it is not the sealant
Before booking, it’s worth knowing the limits too:
- Planning or listed building consent (your local planning authority decides)
- Damaged stone surrounds
- Sashes that rattle, stick or will not open
Not sure which it is? You can email us at info@mrmastic.co.uk and we’ll tell you honestly.
Joints and surfaces we work on
- Sash and case windows
- Period & listed homes
- Stone surrounds
- Timber door frames
- Brick reveals
- Tenement windows
When to call us in Ninewells
Timber frames move with the seasons. That movement opens up the mastic joint little by little.
Look out for any of the following:
- Gaps round a timber door in stone or brick
- Patchy fillers round a sash window
- Gaps where the frame meets the masonry
- Mastic that needs renewing before redecorating
Historic houses such as Camperdown House, about 1.5 miles north, show how far back building around Ninewells goes, and older homes nearby need a sealant that suits their walls.
Comparing quotes
- How hidden problems are handled
- What insurance they hold
- Whether you can choose the colour
- What preparation is included