Glasgow · Scotland

New-build mastic & snagging in Sandyhills, Glasgow

Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Sandyhills and across Glasgow. ARBOMaster approved applicators, fully insured, with a one-year guarantee.

  • Gaps behind new kitchen upstands
  • Internal frame sealant that has split
  • Sealant that never bonded to the surface

Trusted new build mastic in Sandyhills

New build mastic in Sandyhills, done properly

We work in new homes and on new-build sites across Sandyhills. Whether it’s one en suite or a run of plots, the method is the same: cut out, clean, prime where needed and reseal neatly. We work on plot handovers, skirting & floors and show homes, and the jobs we see most are cracked caulk along new skirting and smeared, uneven beads picked up at snagging.

Scotland’s cities are still adding new flats and houses, and new-home owners often find sealant snags in the first year or two, in Sandyhills as anywhere.

All our work is covered by our 12-month guarantee.

Close-up of hands using a sealant gun on the joint between a glass shower screen and tiles
Where
Sandyhills (G32, G33, G69)
Region
Glasgow
Cover
12 months on all our work
Quotes
A clear price before work begins
Email
info@mrmastic.co.uk
Updated
26 October 2026

When to call us in Sandyhills

When the heating goes on in the first winter, the house dries fast. Skirting, frames and worktops pull away slightly and cracks appear in the sealant.

Look out for these signs:

  • New-build shower sealant that has already split
  • Smeared, uneven beads picked up at snagging
  • Sealant applied over dusty or wet surfaces
  • Gaps opening as the house dries out and settles

For new homes near Shettleston station, it’s worth checking the sealant early, while snags are still fresh.

Questions to ask before you book

  • How the colour is chosen
  • The length of the guarantee
  • How much experience the applicator has
  • Is VAT in the price?

How to choose a mastic man

How it works

At the end, we look at the finished work together and tell you how long to leave it. The work normally takes anything from a few hours to several days, depending on the number of plots, depending on the amount of work. In a Scottish city, a lot of jobs are in tenement flats, up a common stair from a shared close. In Sandyhills, it helps to know the floor, the door entry arrangements and the nearest parking.

  1. Each joint is checked for movement before work begins.
  2. We remove the failed sealant and clean the joints.
  3. We make sure the joints are dry and prime them if needed.
  4. New sealant goes in, with baths filled first so they’re at their heaviest.
  5. We check every joint and leave you with the cure times.

Preparing for the visit

  • Keep children and pets away from the work area
  • Let us know about earlier repairs to the joints
  • Let us know if you’ve seen damp or leaks

Get a quote

Want a quote for new build mastic? Please send an email to info@mrmastic.co.uk with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.

Ask for a quote

Related advice

Keeping the joints in good condition

Aftercare is simple:

  • Get a leaking seal dealt with straight away
  • Avoid running a DIY bead over the old one
  • Report sealant problems to your builder during the snagging period
  • Photograph failed sealant before it’s redone

Photograph failed sealant before it’s redone and keep the builder’s replies. It helps if anything else comes up during the warranty period.

Lifting sealant traps moisture and mould behind it. Resealing before mould gets in keeps the job straightforward.

What affects the cost of new build mastic

Your quote is based on your job. We take into account:

  • How much old sealant there is and how hard it is to remove
  • How many areas need sealing
  • The number and length of the joints
  • Whether the work is at height

Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.

Asking for a quote

Photos by email are helpful but not essential. Please mention:

  • Pictures of the joints, sent by email
  • The type of property
  • What the problem is, such as mould, gaps, leaks or cracking
  • The rough size of the job

Every job is quoted individually. Just email us at info@mrmastic.co.uk with the details.

Can I do it myself?

A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.

For landlords and businesses

We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will quote.

Hotels need rooms back in use, so we plan the work room by room. We’ve worked in hotels as well as homes and businesses.

Sandyhills: your questions answered

What guarantee comes with new build mastic in Sandyhills?

Every job comes with our one-year guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.

Do you work for landlords with property near Shettleston station?

Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can send an email to info@mrmastic.co.uk with the details for a clear quote.

What does new build mastic cost?

We don’t publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.

Does someone need to be in?

If the work is inside, we need someone to let us in. Once we’ve agreed the job, you do not need to watch us work.

Can you do several jobs on one visit?

Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.

When is the sealant fully cured?

Many sealants skin over quickly but take longer to cure fully. We’ll give you the cure time for the product we used before we leave.

Where is Mr Mastic based?

Our base is Crawley. Our area covers South East England, London and Scotland.

Are you an approved applicator?

Yes. Mr Mastic is an ARBOMaster approved applicator.

What the job involves on each surface

Windows and doors

Internal joints between frames and plaster often crack as a new house dries. We cut out the cracked bead and reseal with a flexible sealant that suits the frame.

Plot handovers

We work through plots to your schedule, sealing each room ready for handover. Each joint is cleaned and primed where needed so the sealant lasts.

Joints and finishes in Sandyhills homes

Timber frame is common in newer Scottish homes, and as the frame dries and settles, skirting and sealant joints can open up. Sandyhills is in the west of Scotland, which is wetter than the east, so there’s plenty of rain for plot mastic and the sealant in new homes to keep out.

In and around Sandyhills, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.

Sandyhills is about 2 miles north of Cambuslang, in Glasgow. We provide new build mastic to homeowners, landlords and businesses in Sandyhills, as part of our work across Glasgow. Sandyhills is one of 183 places in Glasgow where we work.

We cover every part of G32, G33 and G69 for new build mastic. You will find streets such as Manse Road, Wester Road and Criffell Road. Neighbouring places we cover for new build mastic include Budhill (1 mile west), Mount Vernon (1 mile south-east), Springboig (1 mile north-west), Barlanark (1 mile north-east) and Barrachnie (1 mile east). Larger places within reach include Glasgow (5 miles west), Hillhead (6 miles west), Dowanhill (6 miles west), Woodlands (5 miles west), Woodside (5 miles west) and North Kelvinside (5 miles west).

Local landmarks in Sandyhills

Locally, jobs take us to homes and businesses close to St Andrew's Secondary School and Parkhead Library, among other places. Sandyhills has its own railway station: Shettleston station. Other landmarks nearby include Tollcross Museum (1 mile west) and Glasgow Fort (1.5 miles north). Not far away are Hogganfield Loch and Lenzie Moss.

Map of Sandyhills © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job