Edinburgh · Scotland
New-build mastic & snagging in Corstorphine, Edinburgh
New build mastic in Corstorphine from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Plot mastic for developers ahead of handover
- Cracked sealant around new window and door frames
- Skirting joints opening in the first winter
New homes and floors in Corstorphine
Corstorphine is within about 3 miles 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. Many new homes in Scotland are timber-framed, so skirting and sealant joints can open up as the building settles.
If you’ve bought a new home near South Gyle station, the sealant around baths, showers and frames is worth checking in the first year or two.
Corstorphine is about 3 miles west of West End, in Edinburgh. Our applicators cover new build mastic for homes and businesses in Corstorphine and the surrounding area, as part of our work across Edinburgh. Corstorphine is one of 175 places in Edinburgh we cover for new build mastic.
We work across the EH12 and EH4 postcode area for new build mastic and the streets around it. If you need new build mastic at a property on Manse Road, Gordon Road and Station Road or anywhere close by, we can help. Neighbouring places we cover for new build mastic include Wester Broom (1 mile south-west), Carrick Knowe (1 mile south-east), South Gyle (1 mile south-west), Drumbrae (1 mile north) and Clermiston (1 mile north). Within a short drive, we also cover Edinburgh (3 miles east), Leith (5 miles north-east), Bonnington (5 miles north-east), Greenside (4 miles east), Broughton (4 miles east) and Bellevue (4 miles east).
Around Corstorphine
In Corstorphine, that means homes and buildings near The Torfin pub and Saughton Park and the streets around them. Corstorphine’s nearest station is South Gyle station, about 0.7 miles south-west. A little further out are Craigcrook Castle (1.1 miles north-east) and The Gyle Shopping Centre (1.1 miles west). Not far away are The New Leaf Co-op and Corstorphine Hill.
About our new build mastic in Corstorphine
Failed shower seals, gaps along the skirting and messy beads are common items on a new-home snagging list. While the builder’s snagging or warranty period runs, report it to them first and if that stalls, we can do it. We work on show homes, bathrooms & en suites and kitchens, and common reasons people get in touch are new-build shower sealant that has already split and cracked sealant around new window and door frames.
In a Scottish city, commercial floors have movement joints and thresholds that wear under traffic. Those joints, and plot mastic for developers, are part of the work we cover in Corstorphine.
Each job carries a 12-month guarantee, whatever its size.
- Location
- Corstorphine (EH12, EH4)
- Region
- Edinburgh
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What the job involves on each surface
Bathrooms and en suites
Shower trays in new homes often move slightly in the first year. The joint is stripped back before the new bead goes in and baths are filled before sealing.
Windows and doors
The gap between a new frame and its plaster reveal often opens up. We cut out the cracked bead and reseal with a flexible sealant that suits the frame.
What affects the cost of new build mastic
Jobs vary more than people expect. What affects the quote:
- How many areas need sealing
- Whether there’s mould to deal with
- How much old sealant there is and how hard it is to remove
- The amount of work
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we’ll go through it with you.
What we need to know
Photos by email are helpful but not essential. Try to tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- Photos by email, if that’s easy
- How we’d reach the joints
- Whether it’s a home or a business
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we’ll explain what’s involved and send you a clear quote.
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Keeping the joints in good condition
So the new joints stay in good condition:
- Put sealant faults on your snagging list early
- Avoid running a DIY bead over the old one
- Follow the cure time we give you
- Wipe joints with warm soapy water
Watch the joints as the house settles. Small gaps can appear as the house dries and can be resealed later.
Leave a failed new-build seal and water can reach the floor and the ceiling below. Catching it early keeps the fix to the sealant.
Signs you need new build mastic in Corstorphine
Sealant is often one of the last jobs before handover. Joints aren’t always cleaned of dust or primed, so the bead never bonds properly.
Most people get in touch after spotting something like this:
- New-build shower sealant that has already split
- Worktop and upstand sealant coming away
- Cracked sealant around new window and door frames
- Skirting joints opening in the first winter
In and around Corstorphine, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- Whether the sealant suits the joint
- What insurance they hold
- How hidden problems are handled
- Which colour the sealant will be
Nearby places to Corstorphine
Also in Corstorphine
What we do, step by step
Every visit runs the same way: we check the joints, protect the area around them, do the work and tidy away. It generally takes a few hours in a single home. In a city area like Corstorphine, parking may be by permit or pay-and-display, so tell us what’s nearby. If you’re in a flat, let us know how we get in at the street door.
- We start by going through the snagging items or plot schedule with you.
- Every bit of the old builder’s sealant is cut out, with no layer left behind.
- Joints are vacuumed and cleaned of building dust.
- Primer goes on where the surface and product need it, then the new sealant.
- We tool every joint neatly and tell you when each area can be used.
Getting ready for the visit
- Keep pets and children clear of the area while we work
- Let us know about stairs, lifts or work at height
- Tell us if parking is tricky
Ask for a quote
For new build mastic in Corstorphine, email us at info@mrmastic.co.uk. Tell us what the problem is and where, and we will agree the price before any work begins.
Read more
FAQs for Corstorphine
Can you help a landlord with a rental near South Gyle station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can send an email to info@mrmastic.co.uk with the details for a clear quote.
Can you do new build mastic in Corstorphine?
Yes, Corstorphine is within the area we cover. Our work covers the whole of Scotland. You can send an email to info@mrmastic.co.uk and tell us what needs doing.
Can new sealant go on top of the old bead?
No. Sealing over old sealant looks fine for a few weeks, then lifts. We remove every bit of the old bead before resealing.
Can you match the sealant colour to my new kitchen or bathroom?
We use white, clear or a colour to suit the finishes. Let us know your preference when you ask for a quote.
Why does sealant fail so quickly in new builds?
It’s common, and there are normally two reasons: the house moving as it dries, and sealant that never bonded properly. Cutting it out and resealing properly fixes both.
Do you remove the old sealant?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
What does new build mastic cost?
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 will talk you through it.
Is there a guarantee?
Yes. There’s a 12-month guarantee on every job, large or small.
Why act early in Corstorphine
For developers, getting the sealant right first time saves return visits. Snagging visits for failed sealant cost time on every plot and most come down to preparation. Wind-driven rain gets into any failed joint on the outside of a city building, and in Corstorphine, damp can spread through stone and plaster before anyone sees it.
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.
Why us?
- Quality sealants from Arbo and Everbuild
- Old sealant always removed completely
- A choice of colours where the product allows
- Neat joints and a tidy finish
Read our cost guide and customer reviews.