East Lothian · Scotland
Bielside Window Mastic
Mastic around window and door frames, sills and patio doors in Bielside, with a one-year guarantee on every job. Call for a quick quote.
- Mastic that has split away from the wall
- Damp patches on the reveal after heavy rain
- Draughty joints inside around the window
Bielside questions
I let a flat near Dunbar station. Can you help?
Yes. We work for landlords and agents as well as homeowners, and several properties can go on one quote. Just email us at info@mrmastic.co.uk with the address and what needs doing, and we’ll send you a clear quote.
Does living near the coast affect window mastic in Bielside?
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.
Are you ARBOMaster approved?
Yes. We are approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
Is the work guaranteed?
Yes. Each job is covered for 12 months.
Do you work on first-floor windows?
Yes, as long as they can be reached safely. Let us know about access when you ask for a quote so we can plan the job.
Do you work in Bielside?
We do. Bielside is part of the area we cover, and the service is the same as everywhere else.
Do I have to be there?
That depends on where the joints are. Inside work needs someone to give us access, and for outside work we will agree access with you when we book.
How long will my window job take?
Allow most of a day for a typical house, less for a few frames. Access and how stubborn the old mastic is affect the time most.
Window mastic for homes and businesses in Bielside
Over two decades of sealing frames has taught us which products suit which walls. We are ARBOMaster approved and fully insured, and we give a one-year guarantee on the work. We work on patio & French doors, timber windows & doors and aluminium frames, and common reasons people get in touch are leaking joints at the ends of sills and damp patches on the reveal after heavy rain.
Outdoor sealant needs a dry surface, so window work around Bielside is planned around the weather. Tell us about access to all the windows and doors, upstairs included.
Each job carries a 12-month guarantee, whatever its size.
- Location
- Bielside (EH42)
- Region
- East Lothian
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
What we cannot put right
New sealant can’t fix everything, and we’d rather say so up front. It won’t solve:
- Penetrating damp from a failed cavity tray or render
- A frame that has rotted at the joint
- Faulty window hardware
Not sure which it is? You can email us at info@mrmastic.co.uk and we’ll tell you honestly before booking.
Where we work in Bielside
- Window sills
- Patio & French doors
- uPVC windows
- Aluminium frames
- Timber windows & doors
- Composite doors
What affects the cost of window mastic
Your quote is based on your job. We look at:
- Any mould that needs treating
- Working hours on commercial sites
- The old material and how stubborn it is
- The type of sealant required
Every job is a little different, so we quote each one individually. 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:
- What the problem is, such as mould, gaps, leaks or cracking
- If it’s domestic, commercial or a hotel
- The address or postcode of the job
- The rough size of the job
For window mastic in Bielside, email us at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you’ll get a clear quote before any work starts.
The process
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a handful of frames, longer for a whole house. Around Bielside, distance and access matter more than parking. Tell us how to find the property and how to reach the work.
- We start by checking each window and door with you.
- We remove the old mastic and clean the frame and the wall.
- Where gaps are deep, backing rod goes in first.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Finally we tidy up and check each joint.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Mention any sign-in or site rules at work premises
- Mention any parking rules near the property
Ask for a quote
Need a quote? Please send an email to info@mrmastic.co.uk with a few details. We’ll explain what we’d do and give you a clear price before we start.
Read more
Window mastic in Bielside: local notes
Bielside 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 window and door frames, which can dry out and crack sooner where a building faces the weather. Many older homes in Scotland have sash and case windows, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic.
Letting a property close to Dunbar station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Bielside is about 9 miles east of Haddington, in East Lothian. Every kind of property in Bielside is covered for window mastic. The work is guaranteed for a year. 48 places in East Lothian are on our list, from the larger towns to small villages. We also work in Edinburgh, around 25 miles away.
Every address in EH42 is within our area for window mastic, from the main roads to the quietest streets. Neighbouring places we cover for window mastic include West Barns (1 mile south-east), Belhaven (1 mile north-east), Dunbar (1 mile east), Spott (2 miles south-east) and Broxburn (2 miles east). Within a short drive, we also cover Haddington (9 miles west), North Berwick (8 miles north-west), Longniddry (13 miles west), Gullane (11 miles west), East Linton (4 miles west) and Aberlady (12 miles west).
Around Bielside
For rail, the closest station is Dunbar station, about 1.5 miles east. Nearby you’ll also find Dunbar Castle (1.6 miles north-east) and Dunbar Town House Museum and Gallery (1.5 miles east). Not far away are Doon Hill.
Signs you need window mastic in Bielside
Joints that are too thin or too deep fail early. A skim of sealant over a wide gap soon tears, and a gap filled solid can’t flex. Backing rod sets the right depth.
Any of these means the joints need attention:
- Water coming in at the bottom corners of a door
- Draughts coming in around windows and doors
- Black, perished sealant on frames
- Gaps left after new windows were fitted
Homes close to Belhaven Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What to look for in a quote
- How long the guarantee is
- Are they insured?
- How the colour is chosen
- What the cure time is
What the job involves on each 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.
Patio & French doors
Patio and French doors have the longest joints on most houses. The threshold and the bottom corners take the most water, so they get particular care.
Places near Bielside
More services for Bielside
Aftercare tips
To keep the joints looking good and working properly:
- Check the mastic once a year
- Avoid harsh chemicals near the mastic
- Wash the frames with mild soapy water
- Air rooms to keep condensation down around windows
Silicone cannot normally be painted, so mention any painting plans before any work starts. There are paintable sealants for joints that need it.
On timber windows, water behind the joint can lead to rot. Once wood has rotted, it needs repair before it can be sealed, so early resealing is worth it.
Work for landlords, hotels and businesses
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.