Na h-Eileanan Siar · Scotland
New Build Mastic in Holm
Plot mastic for developers and snagging failed sealant in new homes in Holm, with a one-year guarantee on every job. Call for a quick quote.
- Cracks appearing as a new home settles
- Sealant that never bonded to the surface
- Frame joints opening as the plaster dries
How to look after the new joints
After the cure time, these simple habits help:
- Avoid scourers and strong chemicals on sealant
- Avoid running a DIY bead over the old one
- Look at the sealant regularly in the first couple of years
- Put sealant faults on your snagging list early
Clean the sealant with a mild detergent and a soft cloth. Avoid abrasive pads and strong solvents, which can damage the surface.
If a shower tray or bath seal splits in the first year, look for movement. Getting it resealed properly, and any movement checked, stops it recurring.
How we handle new build mastic in Holm
Some new-home owners let the house settle before resealing. For small cosmetic gaps, that’s reasonable, but a failed shower or bath seal shouldn’t wait. We work on plot handovers, show homes and bathrooms & en suites, and the jobs we see most are gaps between new skirting and floors and sealant work across a run of new homes.
Work in a place like Holm is planned ahead, journey included. Inside work goes ahead in any weather; outside mastic needs a dry day.
Our work is backed for twelve months.
- Where
- Holm (HS2)
- Wider area
- Na h-Eileanan Siar
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Different surfaces, different methods
Kitchens
Worktops in new homes can move slightly as the house dries, which opens gaps along the back. We reseal them with a flexible sealant.
Show homes
Show homes need sealant that looks right from day one. Every bead is neat and coloured to suit the room.
Other services in Holm
Your questions about new build mastic in Holm
Will you come out to Holm?
Yes, smaller places are covered as well as towns. We work across all of Scotland, including the islands, where work is planned around ferry crossings. Let us know about access, parking and anything unusual about getting there when you book.
Is there a guarantee on new build mastic in Holm?
Every job comes with our 12-month guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
Can I send you my snagging list?
Yes. Send it with photos and we will quote for the sealant items. Items that need a plumber, tiler or the builder are flagged.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us.
Which products do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Can you reseal over the builder’s sealant?
No. Fresh silicone does not stick to the old layer, so sealing over the top fails quickly. We cut the old bead out completely.
Where is Mr Mastic based?
We are based in Crawley, and we work across South East England, London and Scotland.
Do I have to be there?
It depends on the job. For work indoors, someone needs to let us in.
Why it’s worth doing now in Holm
If you are still in the builder’s snagging or warranty period, ask them to put it right first. If it’s slow, or the same joint keeps failing, a proper reseal from a specialist is the next step. In a place like Holm, small leaks are easy to put off, but water behind a failed seal does the most damage when nobody’s watching.
Combining jobs into one visit usually makes better use of the time than several visits. You’ll get one clear quote for the whole job.
Why us?
- We agree the colour with you first
- Tidy, careful work
- Sanitary silicone with an anti-fungal additive in wet areas
- An ARBOMaster approved applicator
Take a look at what affects the cost or what customers say.
Joints and finishes in Holm homes
Holm is within about 1 mile of the coast. New homes near the sea put their outside mastic to work from day one, so it’s worth checking at snagging. Island jobs need planning around ferries and the weather, so give us as much notice as you can.
Whether the job is in Holm itself or nearby, the right material for each joint matters as much as a neat finish.
Holm is about 2 miles south-east of Stornoway, in Na h-Eileanan Siar. For new build mastic in and around Holm, please email us at info@mrmastic.co.uk for a quick quote. We are based in Crawley and cover Na h-Eileanan Siar. 87 places in Na h-Eileanan Siar are on our list.
Postcode districts we cover here for new build mastic: HS2. Whether your property is on Holm Road and Parkend or anywhere close by, we can help. Nearby, we also carry out new build mastic in Sanndabhaig (1 mile north-west), Branahuie (1 mile north-east), Bràigh na h-Aoidhe (1 mile north-east), Sandwick (1 mile north-west) and Plasterfield (1 mile north-west). If you’re somewhere remote, the job takes a little more planning, so mention it when you ask for a quote.
Around Holm
Other landmarks nearby include Western Isles Hospital (2.5 miles north-west) and Lewis Loom Centre (2.3 miles north-west). For a walk, there’s Loch Àirigh na Lic.
What we do, step by step
Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes a few hours for most snagging lists, longer for a run of plots and we leave things clean and tidy. In smaller Scottish places, parking is normally less of an issue than access and distance. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- Each joint is checked for movement before we start.
- Old sealant is cut out and the joints cleaned.
- We make sure the joints are dry and prime them if needed.
- New sealant goes in, with baths filled first so they’re at their heaviest.
- We check every joint and leave you with the cure times.
Before we arrive
- Move anything stored near the joints
- Mention any sign-in or site rules at work premises
- Let us know if you’ve seen damp or leaks
Ask for a quote
Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we will explain what’s involved.
Advice
Do you need new build mastic in Holm?
The first winter with the heating on dries a new home quickly. Gaps open along skirting, frames and worktops and cracks appear in the sealant.
Common reasons people contact us include:
- Plot mastic for developers ahead of handover
- Leaking shower tray seals in a new home
- Skirting joints opening in the first winter
- Gaps opening as the house dries out and settles
Around Holm, as everywhere, new build mastic is only as good as the preparation behind it.
What your quote should include
- How the colour is chosen
- Is VAT in the price?
- Are they insured?
- Who does the work, and how experienced they are
How we quote for new build mastic
The price is agreed before any work begins. It takes into account:
- Whether old sealant or filler has to be cut out
- Mould in or behind the old joints
- How many areas need sealing
- The product the joint needs
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. Ask us for a quote and we’ll explain what it covers.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- The problem you’ve noticed
- Any access issues, like height or stairs
- The rough size of the job
- The type of property
Getting a quote is simple: let us know the job and the location. A few pictures by email make the job easier to understand, and we will take it from there.
What sealant work can’t fix
Sealant isn’t the answer to every problem, and we’ll tell you before we start. It won’t solve:
- Your warranty claim itself, which is between you and the builder
- Movement caused by a poorly fitted tray or bath
- Leaking fittings rather than failed sealant
If you are not sure, just send an email to info@mrmastic.co.uk and we’ll give you a straight answer before you book.
What we seal
- Show homes
- Plot handovers
- Skirting & floors
- Windows & doors
- Bathrooms & en suites
- Kitchens