Na h-Eileanan Siar · Scotland
Window & door mastic in Portvoller, Na h-Eileanan Siar
Window mastic for Portvoller and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Untidy mastic left by window fitters
- Draughts coming in around windows and doors
- Old mastic that has gone black or come away
Window mastic in Portvoller, done properly
A cold draught around a closed window often comes from the frame edge. A new joint stops the air getting through and quietens the whistle on windy days. Where the air is getting in through the window itself, we will say so. We work on composite doors, window sills and aluminium frames, and the jobs we see most are mastic that has split away from the wall and rushed sealant from a window installation.
Mastic can only go onto a dry joint, so outside work in Portvoller depends on the weather, and longer journeys are planned in advance. Tell us about access to all the windows and doors, upstairs included.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Place
- Portvoller (HS2)
- Wider area
- Na h-Eileanan Siar
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Frames and glazing around Portvoller
Portvoller 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. Portvoller is in the west of Scotland, which is wetter than the east, which means the mastic around window and door frames has to cope with a lot of rain.
For site and facilities teams at buildings such as Aird Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Portvoller is about 9 miles east of Stornoway, in Na h-Eileanan Siar. Jobs in Portvoller get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. We cover 87 towns and villages across Na h-Eileanan Siar, from the larger towns to small villages.
We cover every part of the HS2 postcode area for window mastic. We also cover the places around Portvoller: Port Mholair (1 mile north-east), Aird (1 mile south-west), Shulishader (2 miles south-west), Sulaisiadar (2 miles south-west) and Garrabost (3 miles south-west). Island and remote addresses take a little more planning, so tell us where you are when you ask for a quote.
Local landmarks in Portvoller
For a walk, there’s Loch an Tiumpan.
Towns and villages near Portvoller
What else we do in Portvoller
Why deal with it now?
Resealing frames is a short job: the visit takes most of a day for a typical house, less for a few frames. Wait for damp to appear and there may be plaster and decorating to sort out too. Out of town in Scotland, exposed walls take a lot of weather, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
Doing several joints on one visit usually 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 Portvoller customers choose us
- Approved under the ARBOMaster scheme
- A sealant colour to suit the surroundings
- We’re fully insured
- White, clear, grey or coloured to suit, where the product allows
Portvoller questions
Is Portvoller in your area for window mastic?
Yes, Portvoller is within the area we cover. Our work covers the whole of Scotland. Just email us at info@mrmastic.co.uk with a few details of the job.
Is Portvoller within the area you cover?
Yes, we do. Our work covers the whole of Scotland, islands included, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can I add another job to the visit?
Yes, we can. More than one area can go on one quote.
Will you leave a mess?
No. We work neatly, protect the area around the joints and tidy up afterwards.
Can new window sealant be painted?
Not usually, if it’s silicone. We choose the product with your decorating in mind, so mention it when you book.
Can landlords and businesses book you?
Yes, often. Several properties can go on one quote.
Does the work come with a guarantee?
Yes. All our work carries a 12-month guarantee, and we are ARBOMaster approved applicators.
How long does it take to reseal the windows on a house?
Allow a few hours for a handful of frames, longer for a whole house. Access and how stubborn the old mastic is affect the time most.
Quotes for window mastic in Portvoller
Call for a quick quote. What matters most is:
- The product the joint needs
- Whether the work is at height
- How many areas need sealing
- The number and length of the joints
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we will go through it with you.
Helping us quote
Before you ask for a quote, have a think about:
- Whether it’s a home or a business
- The address or postcode of the job
- Any access issues, like height or stairs
- Roughly how big the job is
For a quote, drop us a line at info@mrmastic.co.uk with the location and a short description of the problem. We’ll send you a clear quote before any work starts.
When it is not the sealant
We won’t take on work that will not last, so these are the limits:
- A sash or casement that will not close properly
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Damp coming through the wall itself rather than the frame joint
Not sure which it is? You can email us at info@mrmastic.co.uk and we will tell you honestly.
Joints and surfaces we work on
- Timber windows & doors
- Window sills
- Composite doors
- Patio & French doors
- uPVC windows
- Aluminium frames
Common problems we fix in Portvoller
On timber frames, paint and putty build up around the joint. Old mastic gets painted over and cracks under the paint, and timber moves with moisture as well as temperature.
People normally contact us after spotting one of these:
- Mastic that has split away from the wall
- Old mastic that has gone black or come away
- Draughty joints inside around the window
- Gaps left after new windows were fitted
In and around Portvoller, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- Which sealant they’ll use, and why
- When the joint can take water or movement
- How the joint is cleaned and prepared
- Is VAT in the price?
What the job involves on each surface
Patio & French doors
Door frames take knocks and movement every time the doors are used. A flexible sealant copes with that.
Aluminium frames
Large aluminium doors have long joints down each side and across the head, and the bottom joint sees the most water. We prepare and reseal every joint, backing the deep ones.
DIY sealant or a professional job?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
What happens on the day
There isn’t much for you to do on the day. Show us the job and we will take it from there. The work itself takes a few hours for a few frames, or a day or more for a whole house from start to finish. Around Portvoller, distance and access matter more than parking. Tell us how to find the property and how to reach the work.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely.
- The surfaces are cleaned and left dry.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Keep pets and children clear of the area while we work
- Where the joints are inside, avoid wetting them before we arrive
Getting a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. When it suits you, drop us a line at info@mrmastic.co.uk.