Shetland Islands · Scotland
Window & door mastic in Bigton, Shetland Islands
Problem with your window and door frames in Bigton? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Water coming in at the bottom corners of a door
- Cold air getting in at the frame edge
- Gaps left after new windows were fitted
Common questions in Bigton
Is Bigton in your area for window mastic?
Yes. Our work covers the whole of Scotland, and Bigton is part of that. Just email us at info@mrmastic.co.uk with a few details of the job.
Is window mastic in a coastal place like Bigton any different?
Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. Walls facing the sea are usually the first to need attention.
What do you need from me for a quote?
The location, the problem and the rough size of the job. Photos by email help too.
I rent my home. Can I book you?
Yes, but check with your landlord or agent first. Many landlords are glad to have it sorted.
Do you take out the old sealant first?
Yes, every time. New sealant will not bond properly to old, so any old material comes out before anything new goes in.
Do you work for landlords and businesses?
Yes, we do. Domestic, commercial and hotel work are all part of what we do, and we are fully insured.
Can you do the inside joint as well?
Yes. Draughts often come through the inside gap too, so it can be worth sealing both.
Can I add another job to the visit?
Of course. Doing several areas at once is usually more efficient, so mention them when you ask for a quote.
Window mastic for homes and businesses in Bigton
Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We are ARBOMaster approved and fully insured, and we give a 12-month guarantee on the work. We work on composite doors, window sills and aluminium frames, and common reasons people get in touch are whistling draughts around closed windows and draughty joints inside around the window.
Older stone-built homes in Scotland often have sash and case or timber windows set in stone. The sealant has to suit the stone, which rules out acetoxy silicones that can mark or attack it.
All our work is covered by our 12-month guarantee, wherever you are in the Shetland Islands.
- Place
- Bigton (ZE2)
- Region
- Shetland Islands
- Guarantee
- A year, on every job
- Quotes
- A clear price before we start
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Different surfaces, different methods
uPVC windows
Plastic frames move a lot between a hot afternoon and a cold night, so we use a flexible, low-modulus sealant. White is the usual colour, with brown, anthracite grey and black for coloured frames.
Composite doors
Front doors take the weather head on, and the top and bottom corners tend to fail first. We pay most attention there.
How it works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a morning for a couple of windows and a door and we leave things clean and tidy. Around Bigton, distance and access matter more than parking. Tell us how to find the property and how to reach the work.
- We check how each frame can be reached safely.
- All the failed sealant is cut away.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
How to prepare
- For indoor joints, keep the area dry beforehand if you can
- Tell us about any water getting in
- Mention any sign-in or site rules at work premises
How to get a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job.
Read more
Why deal with it now?
Choosing the product is half the job. Decorators’ caulk and bathroom silicone are not designed for outside joints that move. A low-modulus exterior sealant keeps its stretch through hot and cold weather. In a place like Bigton, small leaks are easy to put off, but water through a failed joint keeps working away until it’s fixed.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we will explain what it covers.
Why book with us
- More than 20 years in sealant work
- Sealant colour chosen to suit
- White, clear, grey or coloured to suit, where the product allows
- ARBOMaster approved applicator
Take a look at how sealant jobs are priced or our reviews.
What affects the cost of window mastic
You’ll get a clear quote before we start. It takes into account:
- Working hours on commercial sites
- The size of the job
- The type of sealant required
- How much old sealant there is and how hard it is to remove
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first and give you a clear price before we start.
Helping us quote
You do not need to know the technical terms. It helps if you can tell us:
- Photos by email, if that’s easy
- Where the job is, and your postcode
- How many joints, rooms or windows are involved
- Whether it has been sealed before
For window mastic in Bigton, send an email to info@mrmastic.co.uk. Tell us what the problem is and where, and we will agree the price before any work begins.
Signs you need window mastic in Bigton
Joints that are too thin or too deep fail early. A thin smear across a wide gap has nothing to it, while a joint packed solid can’t stretch. That is what backing rod is for.
Any of these means the joints need attention:
- Damp patches on the reveal after heavy rain
- Untidy mastic left by window fitters
- Hard, cracked sealant around windows
- Sealant in the wrong colour for the frame
In and around Bigton, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
Before you book anyone
- The length of the guarantee
- What the quote includes, VAT included or not
- How the surfaces are prepared before sealing
- Whether they seal over old material or remove it
Can I do it myself?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
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.
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Wash the frames with mild soapy water
- Walk round the house once a year and look at the joints
- Avoid blasting the frames with a pressure washer
- Make sure the drainage slots aren’t blocked
Try not to touch the new joint while it cures, following the cure time we give you. Do not point a pressure washer at the joints.
On timber windows, water behind the joint can lead to rot. Rotten timber needs a joiner, not a sealant, so it pays to reseal before that happens.
Other services in Bigton
Bigton homes and the weather
Bigton is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. On the islands, wind and salt spray are hard on outside sealant.
For an older house near a landmark such as St Ninian's Church And Gatepiers, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Bigton is in the Shetland Islands. Wherever you are in the ZE2 postcode area, we can carry out window mastic at your property. Bigton is one of 63 towns and villages in the Shetland Islands we cover for window mastic.
Here we cover the ZE2 postcode area for window mastic. We also cover the places around Bigton: Levenwick (2 miles east), Hoswick (3 miles north-east), South Scousburgh (3 miles south), Sandwick (3 miles north-east) and Boddam (4 miles south). We also work in nearby towns such as Lerwick (13 miles north-east), Sound (13 miles north-east) and Scalloway (11 miles north). Remote and island addresses need a little more planning, so please mention your location when you email us at info@mrmastic.co.uk.
Local landmarks in Bigton
For a walk, there’s Loch of Vatsetter.