Na h-Eileanan Siar · Scotland
Shader New Build Mastic
Problem with your new-build sealant joints in Shader? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Sealant applied over dusty or wet surfaces
- Cracks appearing as a new home settles
- Plot mastic for developers ahead of handover
Common problems we fix in Shader
A new house holds a lot of water from the build, which takes a year or two to dry out. Drying timber shrinks and pulls joints apart and the sealant has to cope with the movement.
Common reasons people contact us include:
- Joints pulling apart as timber shrinks
- Sealant that never bonded to the surface
- Gaps behind new kitchen upstands
- Cracked sealant around new window and door frames
Whether the job is in Shader itself or nearby, the right material for each joint matters as much as a neat finish.
Questions to ask before you book
- Who does the work, and how experienced they are
- Are they insured?
- What product goes in the joint
- Which colour the sealant will be
About our new build mastic in Shader
Our new-build work comes in two parts: plot mastic for developers, and putting right failed sealant for people who’ve bought a new home. In both, preparation makes the difference. Typical jobs include joints pulling apart as timber shrinks and beads laid onto grit and dust from the build, across kitchens, skirting & floors and windows & doors.
For a place like Shader, the journey and access are planned in advance. Outdoor plot mastic needs dry weather, but indoor floor and skirting joints can be sealed whatever the forecast.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Place
- Shader (HS2)
- Region
- Na h-Eileanan Siar
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Should I try it myself first?
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.
A DIY attempt does not rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
Different surfaces, different methods
Show homes
We can refresh show-home sealant that has discoloured or been knocked. The old bead comes out and a clean new one goes in.
Bathrooms and en suites
Baths, showers, basins and trays in new bathrooms are the most common new-build reseal. We cut out the failed bead, clean and prime, and reseal with anti-fungal sanitary silicone.
What happens on the day
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes a few hours in a single home. Around Shader, 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.
Getting ready for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Let us know about earlier repairs to the joints
- Keep pets and children clear of the area while we work
How to get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved and send you a clear quote.
Advice
Honest limits
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- A tray or bath that isn’t properly supported, until it’s fixed
- Settlement cracks that need a surveyor
- Deciding who is responsible under a builder’s warranty
If you are not sure, just send an email to info@mrmastic.co.uk and we’ll give you a straight answer.
Surfaces we seal
- Kitchens
- Windows & doors
- Bathrooms & en suites
- Show homes
- Skirting & floors
- Plot handovers
What affects the cost of new build mastic
Jobs vary more than people expect. The main factors:
- The product the joint needs
- Whether old sealant or filler has to be cut out
- How much there is to do
- Access and height
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, along with when we can work on site. Call for a quick quote and we will go through it with you.
What to tell us for a quote
Before you ask for a quote, have a think about:
- Whether it’s a home or a business
- A few pictures by email, if you can
- How many joints, rooms or windows are involved
- Where the property is
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 will come back to you with a quote.
Why deal with it now?
Water getting past a failed seal in a new build reaches walls and floors that are still settling. Dealing with it early keeps the damage away from ceilings, floors and finishes. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water behind a failed seal does the most damage when nobody’s watching.
The cost reflects the work involved, not guesswork. That is why we ask about the job first and give you a clear quote before any work starts.
Why choose Mr Mastic in Shader
- Colour agreed with you before we start
- Domestic, commercial and hotel work
- One-year guarantee on every job
- Approved under the ARBOMaster scheme
Take a look at what affects the cost and our reviews.
Places near Shader
Other services in Shader
New homes and floors in Shader
Shader is within about 1 mile of the coast. New homes near the sea put their outside mastic to work from day one, so any gaps are best picked up early. Island jobs need planning around ferries and the weather, so the more notice, the better.
In and around Shader, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Shader (Gaelic: Siadar) is in Na h-Eileanan Siar. Jobs in Shader get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Shader is one of 87 towns and villages in Na h-Eileanan Siar where we work for new build mastic.
Work in HS2 is quoted and booked the same way as anywhere else. Nearby, we also carry out new build mastic in Borgh (1 mile north-east), Barabhas (4 miles south-west), West Side (4 miles south-west), South Dell (7 miles north-east) and North Dell (8 miles north-east). If you are somewhere remote, a little more planning is needed, so mention it when you ask for a quote.
Landmarks near Shader
For a walk, there’s Loch Mòr Bharabhais.
Common questions in Shader
Do you cover Shader for new build mastic?
Yes, Shader is within the area we cover. We work across all of Scotland. You can drop us a line at info@mrmastic.co.uk and tell us what needs doing.
What guarantee comes with new build mastic in Shader?
All our work, in Shader and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
Should I wait before resealing?
It depends on whether water is getting through. Failed seals in wet areas need doing now, but cosmetic gaps can wait for movement to slow.
What colour sealant will you use?
The colour is chosen to suit the tiles, worktop or frame. Tell us what you’d like when you get a quote.
How much does new build mastic cost in Shader?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we’ll talk you through it.
Can I do it myself?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. If it doesn’t work out, we can redo it.
Where do you work from?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
How long does the job take?
Most jobs take a few hours in a single home, including the preparation. Your quote will say how long we expect yours to take.