About us

Alter Supplies are suppliers and stock holders of a huge range of high quality sawn and engineered softwood timber products.
Alter is a family run business by the Miller Family of Lochwinnoch, established in 1991 and has grown substantially since opening. The family have over 30 years of experience with timber products. With starting the business at the historic family farm, Weels Farm, we made the exciting move to our new premises at Unit A, Park Farm, Lochwinnoch to help concentrate on the selling of products to trade and public.
We supply a range of customers including construction companies, joinery manufactures, builders and render & rough casters, as well as DIY enthusiast.
We have decades of experience with timber and fencing products, with highly knowledgeable staff. Our experience enables us to provide outstanding service to all our customers. We only offer the highest quality products, that we ourselves would use, with excellent value for money.
Over the years we have built a strong reputation for providing a first-class service to compliment a full range of quality products.
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