Na h-Eileanan Siar · Scotland
New Build Mastic in Shawbost
Our applicators work in Shawbost on plot mastic for developers and snagging failed sealant in new homes. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Smeared, uneven beads picked up at snagging
- Sealant work across a run of new homes
- New-build shower sealant that has already split
How we handle new build mastic in Shawbost
We work in new homes and on new-build sites across Shawbost. One shower or a whole phase of plots, the method does not change: cut out, clean, prime where needed and reseal neatly. Common call-outs are for gaps between new skirting and floors and beads laid onto grit and dust from the build, on windows & doors, kitchens and show homes.
For a place like Shawbost, the journey and access are planned in advance. Inside work goes ahead in any weather; outside mastic needs a dry day.
Big or small, you get the same one-year guarantee in Shawbost and across Na h-Eileanan Siar.
- Where
- Shawbost (HS2)
- Region
- Na h-Eileanan Siar
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Aftercare tips
Joint life depends on how it’s used and looked after. We suggest:
- Avoid running a DIY bead over the old one
- Follow the cure time we give you
- Check bath and shower seals every few months as the house settles
- Don’t wait for the house to settle if water is getting through
Keep photos of the joints and any snagging correspondence with your builder. It’s useful if you need to raise other issues later.
The sooner you deal with untidy or cracking sealant, the less there is to put right. Small faults turn into leaks if left.
Places near Shawbost
Also in Shawbost
What the job involves on each surface
Bathrooms and en suites
En suite seals are easy to miss on a snagging list until they leak. A proper reseal keeps water in the tray.
Skirting and floors
Wet-area floor joints need a flexible seal. We seal them with a sealant suited to wet areas.
Work for landlords, hotels and businesses
If you manage several properties in or around Shawbost, jobs at different addresses can go on one quote. Send us the addresses and the work at each.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
When something else is needed
New sealant cannot fix everything, and we’d rather say so up front. It won’t solve:
- Structural cracks in walls or ceilings
- Disputes or warranty claims with your builder
- Leaking fittings rather than failed sealant
If in doubt, send an email to info@mrmastic.co.uk and we will say what we think.
Where we work in Shawbost
- Show homes
- Bathrooms & en suites
- Kitchens
- Windows & doors
- Plot handovers
- Skirting & floors
The process
At the end, we look at the finished work together. The work normally takes anything from a few hours to several days, depending on the number of plots, depending on how much there is to do. Around Shawbost, distance and access matter more than parking. Tell us how to find the property and how to reach the work, and the visit is planned around that.
- We start by agreeing which joints are on the list, from the snagging sheet or plot schedule.
- We cut out every bit of the failed or messy sealant.
- Each joint is cleaned of dust and grit, then primed if required.
- New sealant suited to each joint is applied and tooled neatly.
- Each area is checked and left with its cure time.
Before we arrive
- Where the joints are inside, avoid wetting them before we arrive
- Let us know about stairs, lifts or work at height
- Mention any leaks or damp you’ve noticed
Ask for a quote
Getting a quote is simple: let us know the job and the location and its rough size. A few pictures by email make the job easier to understand, and we’ll come back to you with a quote.
Advice
DIY sealant or a professional job?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Why deal with it now?
Resealing everything on a snagging list in one visit is generally simpler than chasing joints one at a time. You get one visit and one clear quote. Out of town in Scotland, exposed walls take a lot of weather, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why book with us
- 12-month guarantee on every job
- 4.9 on Google from 180+ five-star reviews
- You choose the colour before work begins
- Arbo and Everbuild products
Joints and finishes in Shawbost homes
Shawbost is within about 2 miles of the coast. New homes near the sea put their outside mastic to work from day one, so it’s worth checking at snagging. Many new homes in Scotland are timber-framed, and as the frame dries and settles, skirting and sealant joints can open up.
In and around Shawbost, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint. Whether the job is in Shawbost itself or nearby, the right material for each joint matters as much as a neat finish.
Shawbost (Gaelic: Siabost) is in Na h-Eileanan Siar. From the centre of Shawbost to the outskirts, we cover new build mastic for every kind of property, from flats and houses to offices and hotels. Our Na h-Eileanan Siar coverage runs to 87 places, and Shawbost is one of them.
Postcode districts we cover here for new build mastic: HS2. Streets in the area include Rathad Ghrinnibhat, Cnoc a Charnain and Sraid na H-Eaglaise. Nearby, we also carry out new build mastic in Bragar (2 miles north-east), Na Gearrannan (4 miles south-west), Carloway (4 miles south-west), Barabhas (7 miles east) and West Side (7 miles east). If you are somewhere remote, a little more planning is needed, so mention it when you ask for a quote.
Around Shawbost
Nearby you’ll also find Shawbost Folk Museum (0.7 miles north-east). For a walk, there’s Loch a' Bhaile.
Your questions about new build mastic in Shawbost
Will you come out to Shawbost?
Yes. Shawbost is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland, including the islands, where work is planned around ferry crossings. Just mention lanes, gates or anything else about the route when you book.
What guarantee comes with new build mastic in Shawbost?
All our work, in Shawbost and everywhere else, comes with a 12-month guarantee. We’re also fully insured and ARBOMaster approved.
Does someone need to be in?
It depends on the job. Inside work needs someone to give us access, and for outside work we will agree access with you when we book.
Can you work on commercial sites?
Yes. We can plan bigger jobs in stages.
When is the sealant fully cured?
It depends on the product and the conditions. We tell you how long to leave it before we go.
Are you fully insured?
Yes, we’re fully insured for every job we do.
Can you work from my snagging list?
Yes. Photos of each sealant item help us quote. If something is not sealant, we will say so.
Is it messy?
Not at all. The area is protected while we work and cleaned up afterwards.