Edinburgh · Scotland
Carrick Knowe Window Mastic
We cover Carrick Knowe for mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly.
- Mastic that is falling out in pieces
- Cracked sealant at the sill ends
- Sealant in the wrong colour for the frame
Honest limits
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Condensation trapped between the panes
- A frame that has rotted at the joint
- A door that needs adjusting, rehanging or new seals
Not sure which it is? You can email us at info@mrmastic.co.uk and we will tell you honestly.
What we seal
- Aluminium frames
- Composite doors
- Timber windows & doors
- uPVC windows
- Window sills
- Patio & French doors
How we handle window mastic in Carrick Knowe
A window frame and the wall around it expand and shrink at different rates. Heat and cold make frames grow and shrink against brick or render that hardly moves. That is why the joint needs a flexible, low-modulus sealant rather than something rigid. Common call-outs are for mastic that has split away from the wall and old mastic that has gone black or come away, on window sills, timber windows & doors and uPVC windows.
Tenement flats in Scotland’s cities often have windows high above the street, so the mastic outside can go unchecked for years. For a flat in Carrick Knowe, access is the first thing to plan, and in a tenement the outside of the building may be a shared repair.
Big or small, it’s backed by our 12-month guarantee in Carrick Knowe and across Edinburgh.
- Place
- Carrick Knowe (EH12, EH11, EH14)
- Region
- Edinburgh
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
How to look after the new joints
Simple care keeps the joints in good condition. Our advice:
- Don’t use solvent cleaners on the joint
- Repaint timber before it’s bare
- Use gentle cleaners on frames and sealant
- Keep jet washers away from the mastic
Check the drainage slots in the frames are not blocked, so water can run away instead of sitting against the joint.
A small gap around a frame only grows. As the old mastic shrinks further, more air gets through, and a cold room gets colder. Resealing closes it.
How the job changes by surface
Timber windows & doors
Timber moves with moisture as well as heat, so a flexible sealant is essential. We seal onto sound, dry paintwork or timber.
Aluminium frames
Bi-fold and sliding aluminium doors have long frame joints, and the bottom joint sees the most water. Each is cleaned, backed where deep and resealed.
Can I do it myself?
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Questions from Carrick Knowe
I let a flat near South Gyle station. Can you help?
Yes, we work for landlords and agents. Just drop us a line at info@mrmastic.co.uk and tell us about the property, and we will give you a clear price.
Does living near the coast affect window mastic in Carrick Knowe?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
Are you fully insured?
Yes. Full insurance covers our work.
Is it worth trying 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.
Can you work on commercial sites?
Yes, regularly. We can plan bigger jobs in stages.
Can I paint over the new sealant?
Silicone generally will not take paint. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.
What do you put in the joint?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Does the work come with a guarantee?
Yes. All our work carries a 12-month guarantee, and we’re fully insured.
Quotes for window mastic in Carrick Knowe
The quote reflects the job in front of us. We look at:
- Mould in or behind the old joints
- How many areas need sealing
- The size of the job
- Access and height
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we’ll explain the quote if you ask.
Helping us quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- How we’d reach the joints
- If someone has resealed it before
- Roughly how big the job is
- Whether it’s a home or a business
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, email us at info@mrmastic.co.uk.
Also near Carrick Knowe
More services for Carrick Knowe
Do you need window mastic in Carrick Knowe?
Older frames were often sealed with products that set hard. Once it’s rigid, every bit of frame movement pulls at it, and a gap opens along one edge.
Common reasons people contact us include:
- Damp patches on the reveal after heavy rain
- Sealant in the wrong colour for the frame
- Leaking joints at the ends of sills
- Black, perished sealant on frames
Letting a property close to South Gyle station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Comparing quotes
- What preparation is included
- Which sealant they’ll use, and why
- What happens if the job turns out different
- The length of the guarantee
Frames and glazing around Carrick Knowe
Carrick Knowe is within about 3 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around window and door frames, especially on the side facing the sea. The Tenements (Scotland) Act 2004 sets out how owners share the upkeep of common parts like the roof and outside walls, and many buildings use a factor to arrange it. Windows usually belong to the flat, but the title deeds have the final say.
In the older streets around St Anne's Parish Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. For site and facilities teams at buildings such as Scotus Academy, larger buildings have plenty of frames, and the mastic around each one ages.
Carrick Knowe is about 3 miles west of Edinburgh, in Edinburgh. Homes, rented property, offices and hotels in Carrick Knowe is covered for window mastic. Every job comes with our one-year guarantee. Carrick Knowe is one of 175 towns and villages in Edinburgh we cover for window mastic.
All of EH12, EH11 and EH14 is covered for window mastic, from the main roads to the quietest streets. That includes homes and businesses on Roull Road, Station Road and Dovecot Road and the roads around them. Main roads around Carrick Knowe include the A8, which makes travel easy. Neighbouring places we cover for window mastic include Saughton (1 mile south), Stenhouse (1 mile south-east), Broomhouse (1 mile south-west), Corstorphine (1 mile north-west) and Balgreen (1 mile north-east). Larger places within reach include Edinburgh (3 miles east), Leith (5 miles north-east), Bonnington (4 miles north-east), Greenside (4 miles north-east), Broughton (4 miles north-east) and Bellevue (3 miles north-east).
Near you in Carrick Knowe
In Carrick Knowe, that means homes and buildings near Saughton Park, Balgreen Primary School and Gabrielle Keiller Library, among other places. The nearest railway station is South Gyle station, roughly 1 mile west of the centre. Other landmarks nearby include The Gyle Shopping Centre (1.6 miles west) and Craigcrook Castle (1.3 miles north). Green spaces nearby include Corstorphine Hill and The New Leaf Co-op.
What happens on the day
All our tools and materials come with us in the van, so you do not need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. Most jobs take a few hours for a few frames, or a day or more for a whole house. Parking in city streets around Carrick Knowe can be tight or controlled, so it helps to know about permits or nearby bays. For flats, mention the door entry system and any shared-stair arrangements.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
How to prepare
- Mention any parking rules near the property
- Where the joints are inside, avoid wetting them before we arrive
- Let us know about earlier repairs to the joints
Getting a quote
There’s no standard price list. Instead, your job gets its own clear quote. To get started, send an email to info@mrmastic.co.uk.