Midlothian · Scotland
Birkenside Window Mastic
Mastic around window and door frames, sills and patio doors for homes and businesses in Birkenside and across Midlothian. Fully insured, ARBOMaster approved and guaranteed for a year.
- Water coming in at the bottom corners of a door
- Gaps between the frame and the inside reveal
- Rushed sealant from a window installation
How we handle window mastic in Birkenside
Frames and walls do not move together. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. So the sealant has to stretch and recover, which is why we use a low-modulus product. We work on patio & French doors, aluminium frames and timber windows & doors, and common reasons people get in touch are cold air getting in at the frame edge and gaps left after new windows were fitted.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Exposed frames and sills take the full force of wind-driven rain.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we’ll put it right.
- Location
- Birkenside (EH23)
- Region
- Midlothian
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Quotes for window mastic in Birkenside
Jobs vary more than people expect. What affects the quote:
- Which sealant suits the joint
- The number of rooms or windows
- Whether there’s mould to deal with
- Access and height
We do not show prices on the website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
What we need to know
When you contact us, it’s useful to know:
- The rough size of the job
- Whether it’s a home or a business
- What’s wrong with the joints now
- Whether it has been sealed before
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that’s easy.
What sealant work cannot fix
Before booking, it’s worth knowing the limits too:
- Broken hinges, locks or handles
- Penetrating damp from a failed cavity tray or render
- Rotten timber, which needs a joiner first
If you are not sure, just send an email to info@mrmastic.co.uk and we will give you a straight answer before booking.
Surfaces we seal
- Composite doors
- Patio & French doors
- Timber windows & doors
- Aluminium frames
- Window sills
- uPVC windows
For landlords and businesses
Letting agents and landlords in Birkenside can book us as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Common questions in Birkenside
Will you come out to Birkenside?
Yes, smaller places are covered as well as towns. We work across all of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Is Birkenside in your area for window mastic?
Yes. Our work covers the whole of Scotland, and Birkenside is part of that. Just email us at info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear quote.
How do I get a quote for window mastic in Birkenside?
It depends on the job, so we quote each one individually. For a quick quote, email us at info@mrmastic.co.uk with a short description of the job.
What sealant do you use?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
How long before the joint can be used?
Cure times vary by product. We tell you how long to leave it before we go.
Will you leave a mess?
Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we’re done.
Can you do upstairs windows?
Usually, yes. We plan safe access before the job.
Do you have sealant for grey or black windows?
Yes. We can use white, brown, anthracite grey, black or clear, so the joint suits the frame.
Nearby places to Birkenside
Other services in Birkenside
What the job involves on each surface
Timber windows & doors
Timber moves with moisture as well as heat, so the joint must stay flexible. We seal onto sound, dry paintwork or timber.
Window sills
Stone and concrete sills have their own joints, and the joint under the frame can let rain run behind. Those are sealed with a product suited to stone or concrete.
Why act early in Birkenside
Not every sealant suits a window. Interior caulk and bathroom silicone are not made for exterior frame joints. A low-modulus exterior sealant keeps its stretch through hot and cold weather. Exposed walls in smaller Scottish places take a lot of wind and rain, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we will go through it with you.
Why Birkenside customers choose us
- Experience in homes, commercial sites and hotels
- You choose the colour before work begins
- Over 20 years’ experience
- Old sealant always removed completely
Take a look at our cost guide or our reviews.
What happens on the day
Most of a good job is in the preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it normally takes a few hours for a handful of frames, longer for a whole house. For a place like Birkenside, longer drives are planned in advance. Mention tracks, gates, ferries or anything else about the route.
- First we look at every frame and agree the list.
- We remove the old mastic and clean the frame and the wall.
- We fit backing rod in deep gaps so the sealant is the right depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Every joint is checked before we leave.
Before we arrive
- Move anything stored near the joints
- Mention any leaks or damp you’ve noticed
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
For window mastic in Birkenside, drop us a line at info@mrmastic.co.uk. Tell us what the problem is and where, and you’ll get a clear quote before work begins.
Related advice
DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
Birkenside homes and the weather
Historic houses like Melville Castle (about 4.4 miles north-west) are a reminder that the area around Birkenside has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
For landlords with property near Gorebridge station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. Homes close to Hunterfield Road Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Birkenside is about 3 miles south-east of Bonnyrigg, in Midlothian. Birkenside gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Birkenside is one of 33 towns and villages in Midlothian we cover for window mastic. We also work in Edinburgh, about 10 miles from Birkenside.
Postcode districts we cover here for window mastic: EH23. That includes homes and businesses on Main Street, Vogrie Road and Private Road and the roads around them. Neighbouring places we cover for window mastic include Arniston (1 mile south), Gorebridge (1 mile north), North Middleton (1 mile south-east), Gowkshill (2 miles north) and Carrington (2 miles west). Further out, we also cover Bonnyrigg (3 miles north-west), Dalkeith (4 miles north), Penicuik (7 miles west), Loanhead (5 miles north-west), Shawfair (6 miles north) and Danderhall (6 miles north-west).
What’s near Birkenside
There’s a railway station in Birkenside itself: Gorebridge station. Well-known places in the area include Midlothian Community Hospital (3.5 miles north-west) and Catcune Castle (0.5 miles south-east). The countryside around Birkenside includes Edgelaw Reservoir.