Na h-Eileanan Siar · Scotland
Sand Mastic in Newmarket
Sand mastic for Newmarket and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Old sand mastic that has cracked, crumbled or fallen out
- Patchy fillers round a sash window
- Cracked mastic round a front door frame
Sand mastic in Newmarket
Sand mastic does not last for ever, leaving gaps round the window. Renewing it closes the gap so the surround looks right again. If you’re dealing with window mastic to renew ahead of painting and old cement repairs round a window that have failed, we can help, whatever the surface.
Mastic can only go onto a dry joint, so outside work in Newmarket depends on the weather, and longer journeys are planned in advance. Let us know about access to every frame, including any upstairs.
Big or small, it’s backed by our 12-month guarantee in Newmarket and across Na h-Eileanan Siar.
- Location
- Newmarket (HS2)
- Region
- Na h-Eileanan Siar
- Cover
- A year, on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Landlord and commercial work in Newmarket
Housing providers, facilities teams and property managers book us too in Newmarket and across Na h-Eileanan Siar. Several sites can go on one quote.
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
What we do, step by step
We keep the work tidy and contained to the joints we are treating. Expect the work to take anything from a few hours to a full day, depending on how many windows, and we explain the cure time before we leave. Outdoor work around Newmarket depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Work indoors isn’t affected.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Preparing for the visit
- Mention if the joints have been sealed before
- On commercial sites, let us know about site rules
- Keep pets and children clear of the area while we work
How to get a quote
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, send an email to info@mrmastic.co.uk.
Related advice
Also in Newmarket
Sand mastic in Newmarket: local notes
Newmarket is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That is hard on the mastic around older windows and doors, especially on the side facing the sea. Many older homes in Scotland have sash and case windows, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic.
In and around Newmarket, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
Newmarket is about 1 mile north of Stornoway, in Na h-Eileanan Siar. From the centre of Newmarket to the outskirts, we cover sand mastic for every kind of property. Newmarket is one of 87 towns and villages in Na h-Eileanan Siar we cover.
Here we cover the HS2 postcode area for sand mastic. Whether your property is on Bakers Road and Riverview or a nearby road, we can help. You’ll find Newmarket on the A857, so it’s easy for us to get to. Neighbouring places we cover for sand mastic include Laxdale (1 mile south), Stornoway (1 mile south), Steinis (2 miles south-east), Plasterfield (2 miles south-east) and Tong (2 miles north-east). For island and remote addresses, a little more planning is needed, so let us know when you get in touch.
Local landmarks in Newmarket
Well-known places in the area include Western Isles Hospital (0.9 miles south) and Lewis Loom Centre (1.5 miles south). Not far away are Ben Barvas and Loch Àirigh na Lic.
Looking after it afterwards
Aftercare is simple, and it makes a real difference:
- Sort the mastic before the decorators arrive
- Avoid patching sand mastic with silicone
- Get any rot dealt with first
- Don’t paint over the new mastic
Leave the new mastic alone while it firms up. It forms a skin fairly soon, but takes longer to harden fully.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
What affects the quote in Newmarket
For a quick quote, just ask. The main things that affect it are:
- The size of the job
- The number of rooms or windows
- How easy the joints are to reach
- Mould in or behind the old joints
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Helping us quote
Photos help, but a description is a good start. Please mention:
- How we’d reach the joints
- What’s wrong with the joints now
- Roughly how big the job is
- Pictures of the joints, sent by email
Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we will take it from there.
Newmarket questions
Is Newmarket in your area for sand mastic?
Yes. We work across all of Scotland, and Newmarket is part of that. Just send an email to info@mrmastic.co.uk with a few details of the job.
Do you cover smaller places like Newmarket?
Yes, Newmarket is covered. Our work covers the whole of Scotland, islands included, and smaller places are part of that. Longer journeys are simply planned in advance.
What do you put in the joint?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We will tell you what we are using and why.
Can I do it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Can you do several jobs on one visit?
Of course. Doing several areas at once is normally more efficient, so mention them when you ask for a quote.
Is it messy?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Is the work guaranteed?
Our 12-month guarantee applies on every job.
Do you work for letting agents?
Yes, we do. Domestic, commercial and hotel work are all part of what we do.
Honest limits
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Masonry that needs repairing
- Sashes that rattle, stick or will not open
- Decayed frames that need repair
If you are not sure, just drop us a line at info@mrmastic.co.uk and we’ll give you a straight answer before booking.
Surfaces we seal
- Brick reveals
- Tenement windows
- Sash and case windows
- Timber door frames
- Stone surrounds
- Period & listed homes
Do you need sand mastic in Newmarket?
Some old mastic was never deep enough. A thin layer does not hold well, which is why we pack deep voids first and get the depth right.
People usually contact us when they notice something like this:
- Mastic round period door frames that has failed
- Window mastic to renew ahead of painting
- Draughts and rain around sash boxes
- Old cement repairs round a window that have failed
Whether the job is in Newmarket itself or nearby, the right material for each joint matters as much as a neat finish.
Comparing quotes
- Whether they’re fully insured
- How hidden problems are handled
- How long to leave it before use
- How the joint is cleaned and prepared
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.