Replacement Windows,
  Exterior Doors & Roofing
     in St. Thomas, London,
       Elgin & Middlesex

PerfectFit Installations is a trusted exterior renovation company, located in Aylmer Ontario, proudly serving homeowners in Aylmer, London, St. Thomas, and throughout Elgin County and Southwestern Ontario. With more than 20 years of hands-on industry experience, our company has built a strong reputation for delivering high-quality workmanship, reliable service, and exterior improvements that homeowners can depend on for years to come.

Originally known for professional window and exterior door installations, PerfectFit Installations has grown into a full-service exterior renovation specialist. Today, the team provides expert roofing installation, siding installation, soffit and fascia replacement, as well as custom decks and fences designed to enhance both the beauty and durability of your home. We also transform garages, by insulating and finishing to create incredibly functional spaces.

What sets PerfectFit Installations apart is our commitment to doing the job right the first time. Every project begins with a personalized consultation where homeowners receive honest advice, detailed measurements, and professional recommendations tailored to their home, style, and budget. Their Window Wise Certified installers ensure that each installation meets strict industry standards for performance, energy efficiency, and long-term reliability.

Living in Southwestern Ontario means homes must withstand harsh winters, strong winds, and changing seasons. PerfectFit Installations selects quality materials and proven installation methods that protect homes from the elements while improving curb appeal and property value.

When you choose PerfectFit Installations, you are choosing a local team that takes pride in craftsmanship, professionalism, and customer satisfaction. From small exterior upgrades to complete exterior renovations, PerfectFit Installations works hard to ensure your home looks better, performs better, and truly becomes the perfect fit for your family. We make it fit your lifestyle.