Midlothian · Scotland

Sand mastic for sash & case windows in Carrington, Midlothian

Window and door surrounds in Carrington need attention? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.

  • Gaps round a timber door in stone or brick
  • Mastic dropping out of the joint
  • Draughty sash windows at the surround

Sand mastic near Carrington

What sand mastic looks like in Carrington

Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that. With historic houses such as Melville Castle (about 4 miles north) nearby, there’s older building stock in the area around Carrington as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.

In the older streets around Carrington Parish Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.

Carrington is about 3 miles south of Bonnyrigg, in Midlothian. If you need sand mastic in Carrington, it’s easy to get a quote: please email us at info@mrmastic.co.uk. We cover Midlothian from our Crawley base, Carrington included. Carrington is one of 33 places in Midlothian we cover. There’s also a page for Edinburgh, roughly 9 miles from Carrington.

Jobs for sand mastic in EH23 is quoted and booked the same way as anywhere else. Local streets include Main Street, Primrose Gardens and Manse Road. Neighbouring places we cover for sand mastic include Arniston (2 miles east), Birkenside (2 miles east), Gorebridge (2 miles north-east), Gowkshill (2 miles north-east) and Newtongrange (3 miles north-east). We also work in nearby towns such as Bonnyrigg (3 miles north), Dalkeith (4 miles north), Penicuik (5 miles west), Loanhead (4 miles north-west), Mayfield (3 miles north-east) and Shawfair (6 miles north).

Local landmarks in Carrington

Carrington’s nearest station is Gorebridge station, roughly 1.7 miles east. Other landmarks nearby include Midlothian Community Hospital (3.2 miles north) and Dalhousie Castle (1.9 miles north). The countryside around Carrington includes Edgelaw Reservoir.

Map of Carrington © OpenStreetMap contributors

Sand mastic in Carrington, done properly

We renew sand mastic around sash windows and doors set in stone or brick. The old mastic is raked out, and new mastic is applied and shaped by hand. We work on tenement windows, timber door frames and sash and case windows, and people most often call us about failed mastic on an exposed elevation and old cement repairs round a window that have failed.

In and around a place like Carrington, homes range from older stone-built cottages to newer houses. Exposed frames and sills take the full force of wind-driven rain.

Our work is backed for twelve months, in Carrington and everywhere else we cover.

Location
Carrington (EH23)
Wider area
Midlothian
Cover
A year, on every job
Quotes
A clear price before work begins
Email
info@mrmastic.co.uk
Page updated
26 October 2026
Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house

Honest limits

We will always be straight with you, so here’s what new sealant won’t do:

  • Timber that has rotted
  • Masonry that needs repairing
  • Cracked or broken glass

If you are not sure, just email us at info@mrmastic.co.uk and we will give you a straight answer before you book.

Surfaces we seal

  • Stone surrounds
  • Timber door frames
  • Period & listed homes
  • Brick reveals
  • Sash and case windows
  • Tenement windows

What affects the quote in Carrington

Some jobs are bigger than they look, and some smaller. What affects the quote:

  • The product the joint needs
  • How much old sealant there is and how hard it is to remove
  • When we can work, for business premises
  • How many rooms, windows or areas are involved

What you pay reflects the work, not a rough estimate. That’s why we ask about the job first and agree the price before starting.

Helping us quote

The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:

  • Photos by email, if that is easy
  • The problem you’ve noticed
  • Any access issues, like height or stairs
  • The type of property

The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.

Aftercare tips

Looking after new joints is easy:

  • Leave the new mastic unpainted
  • Go gently near the mastic when preparing windows
  • Keep sills and gutters clear so water drains away
  • Get any rot dealt with first

Look at the mastic when you look over the windows. Small cracks are easier to deal with early.

Good mastic helps keep the frame dry. Once it fails, water can sit against the timber and timber that stays wet can rot.

How it works

On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The job generally takes a few hours per window, depending on the condition of the joints, including the tidy-up. For a place like Carrington, longer drives are planned in advance. Mention tracks, gates, ferries or anything else about the route.

  1. First we agree which joints need doing.
  2. We remove the old, loose mastic.
  3. We pack any deep voids first.
  4. The sand mastic is mixed and pressed into the joint by hand.
  5. The surface is finished to suit the stone or brick.

How to prepare

  • For business premises, tell us about site rules or sign-in
  • Try not to wet indoor joints just before the visit
  • Let us know if you’ve seen damp or leaks

Get a quote

Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. Whenever you are ready, send an email to info@mrmastic.co.uk.

Get a quick quote

Related advice

Should I try it myself first?

The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.

Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.

Common problems we fix in Carrington

Sand mastic slowly weathers. It hardens, cracks and starts to come away on the stone or timber.

Look out for these signs:

  • Gaps between timber frames and stone or brick
  • Gaps round a timber door in stone or brick
  • Window mastic to renew ahead of painting
  • Modern sealant on a period surround

For landlords with property near Gorebridge station, cracked sand mastic around sash windows lets in the draughts tenants complain about.

What to look for in a quote

  • How long to leave it before use
  • The length of the guarantee
  • How much experience the applicator has
  • How the joint is cleaned and prepared

10 questions to ask before you book

Common questions in Carrington

Is Carrington within the area you cover?

Yes, Carrington is covered. Our work covers the whole of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.

Can you help a landlord with a rental near Gorebridge station?

Yes. We work for letting agents and landlords as well as householders, 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.

Are you an approved applicator?

Yes. We hold ARBOMaster approved applicator status and we are fully insured too.

Is there any odour?

Sometimes, a little. It fades as the sealant cures.

Can new sealant go over the old?

No. New silicone won’t bond to old silicone, and it traps any mould or water underneath. We remove it all first.

Are you fully insured?

Yes. We’re fully insured for domestic and commercial work.

Can you do several jobs on one visit?

Yes, we can. Several rooms, windows or areas can go on one quote.

Is it messy?

Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.

Landlords, agents and businesses in Carrington

From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.

Letting agents often deal with us directly. Tell us the address, the job and how access works.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job