We Work Hard to Minimise our Environmental Impact

Climate change, carbon emissions, loss of wildlife and de-foresting are all global topics that we strive to address in every aspect of our business. From day-to-day operations to the manufacturing and recycling of windows, we are proud of the lengths we go to to minimise our environmental impact on our planet.

Dalchork and Tirryside Woodlands

Edinburgh Sash & Case owns and manages 280 acres of woodland just North of Lairg. There are the remains of an Iron Age broch on the land and the area is split into two large sections, the Tirryside area is a mixture of young native broadleaf woodland (planted 2014) and peatland.

Peatlands are a key part of the Scottish landscape, as well as our cultural and natural heritage. They are an internationally important habitat and a hugely important carbon store.

We are commited to protecting and improving the woodland for future generations and are working on a five year project with Scotland The Big Picture.

Northwoods Rewilding Project


We are delighted to be an official partner of the Northwoods rewilding project.

The Northwoods Rewilding Network is a Scotland-wide chain of landholdings committed to nature recovery.

Its partners share a vision for an ecologically-restored landscape, where habitats are better connected and species can recover, expand and disperse.

You can read more about the Northwoods project here.

Increasing Biodiversity

We are working with environmental organisations and like minded locals to restore the river banks as well as the woodlands.

We are increasing the biodiversity by planting more native trees and plants, thinning non native trees and increasing areas of standing water to improve habitats for wildlife. 

The lack of shade from tree cover over Scotlands rivers is contributing to water temperatures reaching dangerous levels, even at higher altitudes.

Replanting on the river banks is essential to protect wild salmon habitats, freshwater fish and other species which, are in rapid decline.

Our woodland already provides a home for red squirrels, badgers, voles, pine martens, black grouse, ospreys and many other species.

March 2023

Alder, birch, hazel, grey willow, goat willow, and aspen trees planted along river banks and tributary as part of the Tirryside Riparian Woodland scheme.


The second area bordering Dalchork Wood is made up mainly of maturer pine woods and large areas of peatland. 

The maturer section of woodland will eventually be managed for timber and joinery manufacturing. A mixture of Pine, Douglas Fir, Larch and Poplar are to be planted for sustainable manufacturing.

Our company aim to harvest and manufacture from our own timber stocks and rely less on imported products.

Ancient Caledonian Forest


15,000 km2 of Scotland was once covered by the Caledonian Forest (also known as the Celtic Rainforest)  now just over 1% of this ancient woodland remains.

The ancient Caledonian forest was made up of 16 native species: Alder, Aspen, Ash, Birch, Cherry, Elder, Elm, Hazel, Hawthorn, Holly, Juniper, Oak, Rowan, Scots Pine, Yew and Willow.

 All new planting is being done with a mixture of these trees.

Edinburgh & The Lothians

We have planted well over a 1000 native trees in Edinburgh and West Lothian in the last two years on three different sites.


Each time a client leaves a Google review, a tree is planted on our behalf via the organisation Review Forest.

This is done in three different projects in Mexico, Madagascar and Australia.

The current planting project is on the Yucatan Peninsula in Mexico. Simply leave a review for us on Google and you will automatically get a tree planted in your name – you can see your tree in our review forest and which species was planted for you.

Our Environmental Working Practices

Our Workshop

All the timber we buy for our manufacturing comes from FSC approved suppliers.

Our Edinburgh workshop is heated by the offcuts from our timber waste.

Our sawdust waste is turned into timber briquettes which burn cleaner than normal logs..

Skip waste is separated and recycled at the recycling centre in Leith. Your old windows and timber waste will end up as chipboard in flooring or biomass products.

Virtual Surveys and Sustainability

At our company, we encourage clients to conduct initial surveys virtually via video calls. This approach not only saves time but also minimizes unnecessary vehicle journeys. By connecting with our window experts virtually, you’ll receive comprehensive advice, explore options, and obtain pricing—all without leaving your location. Physical window surveys are conducted only when absolutely necessary.

Furthermore, we’ve made significant strides in reducing our environmental impact. Through organizational efficiencies and strategic changes, we’ve substantially cut down on vehicle mileage and emissions over the past few years. As part of our commitment to sustainability, we’re actively investing in cleaner vehicles and have plans to transition to an all-electric fleet when practical.

Thank you for joining us on this journey toward a greener future!

Sash Window Renovation

Enhance the longevity of your windows while minimizing waste and energy consumption through our comprehensive sash window renovation services. By renovating and draft-proofing your windows, we extend their lifespan, reduce unnecessary waste, and contribute to energy conservation.

Additionally, the installation of double glazing significantly improves the efficiency of older buildings. It achieves this by reducing the energy required to heat the building, thereby lowering your carbon footprint.

Join us in preserving the charm and functionality of your sash windows while embracing sustainable practices.