KAJ Construction has continually provided the very best siding installations for residential, commercial, institutional and historic properties. Located in the metro-west area of Massachusetts, we service a wide geographical area including Boston, Brookline and southern New Hampshire.

Our services are based on industry best practices, allowing us to conduct regular training to keep our crews on top of current trends and the latest installation techniques.


  • Attractive Financing Plans
  • Environmentally Friendly Products
  • Fire Resistant Fiber Cement and Trim Materials
  • Durability, Sustainability, Performance & Design
  • Traditional, Attractive Natural Cedar Shingles
  • Energy Efficient – Low Maintenance Costs
  • Guaranteed Expert Craftsmanship
  • Beautiful Designer Colors

Call the exterior experts today at 508-834-8059 or click the “Estimates” link above to schedule an appointment with our project estimator!