Na h-Eileanan Siar · Scotland
Upper Coll New Build Mastic
Our applicators work in Upper Coll on plot mastic for developers and snagging failed sealant in new homes. Old material cut out, joints cleaned and sealed neatly.
- Sealant work across a run of new homes
- Gaps between new skirting and floors
- Worktop and upstand sealant coming away
About our new build mastic in Upper Coll
Building dust is behind a lot of failed new-build sealant. We clean every joint thoroughly and prime where the surface and product need it, so the new bead bonds properly instead of bonding to the dust. Typical jobs include untidy sealant flagged on a snagging list and skirting joints opening in the first winter, across show homes, windows & doors and skirting & floors.
Timber frame is common in newer Scottish homes, and it settles over the first years, which shows as gaps at skirtings and floor joints. In older homes, timber floors move through the year too.
Whatever the size of the job, you get the same one-year guarantee.
- Where
- Upper Coll (HS2)
- Region
- Na h-Eileanan Siar
- Guarantee
- A year, on every job
- Quotes
- A clear price before work begins
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Do you need new build mastic in Upper Coll?
On many sites, sealant goes on in the final rush before handover. Joints aren’t always cleaned of dust or primed, so the bead never bonds properly.
If you can see any of these, it’s time to have the joints looked at:
- Sealant work across a run of new homes
- Untidy sealant flagged on a snagging list
- Cracked caulk along new skirting
- Gaps behind new kitchen upstands
Around Upper Coll, as everywhere, new build mastic is only as good as the preparation behind it.
What to look for in a quote
- Who does the work, and how experienced they are
- How the colour is chosen
- What the cure time is
- The length of the guarantee
How to look after the new joints
To keep the joints looking good and working properly:
- Wipe joints with warm soapy water
- Ventilate bathrooms well, especially in the first year
- Look at the sealant regularly in the first couple of years
- Follow the cure time we give you
Clean the sealant with a mild detergent and a soft cloth. Keep scourers and harsh chemicals off it, which can damage the surface.
Leave a failed new-build seal and water can reach the floor and the ceiling below. Early resealing keeps the job small and the new finishes intact.
Upper Coll questions
Will you come out to Upper Coll?
Yes, Upper Coll is covered. We work across all of Scotland, islands included, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do you cover Upper Coll for new build mastic?
Yes, Upper Coll is within the area we cover. We work across all of Scotland. You can send an email to info@mrmastic.co.uk and let us know what needs doing.
Do you hold any approvals?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us and we are fully insured.
How long does the job take?
As a guide, most jobs take a few hours for most snagging lists, longer for a run of plots. Larger jobs naturally take longer.
I rent my home. Can I book you?
Yes, though it’s best to check with your landlord first. Landlords are often happy for the work to be arranged.
What do you put in the joint?
Each joint gets the product that suits it. Movement, water and weather all affect the choice.
Do you have insurance?
Yes, we’re fully insured.
Why act early in Upper Coll
DIY kits do not solve the main problems with new-build sealant: dust, no primer and old sealant left in the joint. Cutting out, cleaning and priming are what make the difference. 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.
Doing several joints on one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. We’ll give you a clear quote for the lot.
Why book with us
- 180+ five-star Google reviews
- Sealant colour chosen to suit
- ARBOMaster approved applicator
- Every job guaranteed for a year
Take a look at our cost guide or what customers say.
Different surfaces, different methods
Skirting and floors
As timber and screed dry, skirting and floors shift. We use a flexible product rather than caulk.
Bathrooms and en suites
Shower trays in new homes often move slightly in the first year. We reseal once the old bead is fully out and baths are filled before sealing.
What sealant work can’t fix
We will not take on work that won’t last, so these are the limits:
- Cracked trays, tiles or worktops
- Leaking fittings rather than failed sealant
- A tray or bath that is not properly supported, until it’s fixed
If in doubt, email us at info@mrmastic.co.uk and we will say what we think before you book.
Joints and surfaces we work on
- Bathrooms & en suites
- Kitchens
- Plot handovers
- Skirting & floors
- Windows & doors
- Show homes
New homes and floors in Upper Coll
Upper Coll 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. Work on the islands has to be planned around ferry crossings and the weather, so the more notice, the better.
For jobs in and around Upper Coll, choosing the right material for each joint is as important as a tidy finish.
Upper Coll (Gaelic: Col Uarach) is in Na h-Eileanan Siar. Wherever you are in the HS2 postcode area, we can carry out new build mastic at your property. We cover 87 towns and villages across Na h-Eileanan Siar.
Jobs for new build mastic in HS2 works the same way as everywhere else we cover. Nearby, we also carry out new build mastic in Aird Tong (1 mile south), Tong (1 mile south-west), Bac (2 miles north-east), Newmarket (3 miles south-west) and Steinis (3 miles south). If you’re somewhere remote, a little more planning is needed, so let us know when you get in touch.
Landmarks near Upper Coll
A little further out are Lewis Loom Centre (3.6 miles south-west) and Western Isles Hospital (3 miles south-west). For a walk, there’s Loch Àirigh na Lic.
The process
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours in a single home. Around Upper Coll, distance and access matter more than parking. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- We look at why each joint failed, including any movement.
- Old sealant is cut out and the joints cleaned.
- We make sure the joints are dry and prime them if needed.
- Baths are filled with water, then the new sealant is applied.
- The finished joints are checked and the cure times given.
Before we arrive
- Let us know if you’ve seen damp or leaks
- Mention any parking rules near the property
- Tell us about any previous sealing or DIY attempts
How to get a quote
Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job.
Read more
Also in Upper Coll
Landlords, agents and businesses in Upper Coll
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.