★★★★★
Very good service, knowledgeable staff. Fairly priced. Highly recommend!

- Barry Lambert

★★★★★
Great place to get all your home building supplies and also has a great tool selection.

- David Oakes

★★★★★
The staff are friendly, courteous and knowledgeable while offering unparalleled customer service, selection and pricing.

- Erik M. La Pointe

Build With Confidence in Winslow & Waterville, ME

Look forward to your next shipment from our building supply store

Need to get your hands on some construction supplies in Winslow, ME? Whether you're building a custom home or upgrading the insulation in an old house, McCormack Building Supply has the materials you need to complete your project. In addition to construction supplies, our building supply store offers drafting and design services. Visit our Kitchen and Bath Center or our Andersen Showroom to get inspiration for your next project.

Call 207-873-6467 now to learn more about our construction supplies and our kitchen and bathroom design services.

All your construction needs in one place

Working on a home improvement project? Building a custom home from the ground up? We have the supplies and services you need to get the job done. When you visit our building materials store, you'll find:

  • Kitchen and bath fixtures
  • Windows and doors
  • Insulation
  • Roofing products
  • Siding and exterior trim
  • Framing and building materials
  • Engineered lumber and trusses
  • Decking and railing
  • Paint, stain and sundries
  • Power tools


Looking for a door and window supply store? Want to pick out some new countertops? Our store has what you're looking for. Call 207-873-6467 now to get a free estimate on supplies.

We have the supplies you demand

McCormack Building Supply has been in operation since 1979. We serve Winslow, ME and surrounding areas with high quality building materials and design services. Our building supply store is family-owned and operated, and we stay up to date on the latest construction trends and technologies. Whether you're a contractor or a DIY home improvement specialist, McCormack Building Supply is the place to go for construction supplies.

Visit our building materials store today to find the supplies you need for your project.