About Us


Big 5 Exteriors - Calgary, AB

It’s hard to be in a bad mood with that outside our office!

Our Company at a Glance

  • Founded in 1984
  • Family owned/operated
  • WCB covered
  • A+ BBB rating
  • Office located in NE Calgary

For over 30 years, Big 5 Exteriors has been building a reputation for exceptional Calgary eavestrough, siding, soffit, and fascia installation for residential, commercial, and industrial property owners. Founded on the premise that high-quality work shouldn’t have to cost an arm and a leg, Big 5 Exteriors has been proudly serving Calgary and area by providing exceptional workmanship, open and honest communication, and a quality product that we are proud to put our name behind.

We believe that our customers want a high-quality product that will stand the test of time. That’s why all products offered and installed by Big 5 Exteriors come with our unconditional backing. Our eavestrough, downspouts, and fascia/soffit are designed to look as good 10 years from now as they day we installed them!

Run by Al and Derek Perzylo, the father-son duo at Big 5 ensure that your job – no matter how big or how small – is given the due care and attention that it deserves. This dedication to a job well done is what has made Big 5 Exteriors the go-to choice for Calgary’s eavestrough, siding, soffit, fascia, and window cladding needs… for over 30 years! This is why so many of our clients refer their friends and family to us.

Big 5 Exteriors is a family-owned and operated business that maintains its personal approach with every client, ensuring that our clients receive a seamless and smooth experience- and not just from our seamless eavestrough!

Roofing, Eavestrough, & Siding Services, Since 1984.

Big 5 Exteriors - Calgary, AB

Derek & Al Perzylo, Owners

Our professional eavestrough installers bring the kind of confidence that only years of hands-on experience can provide. Every job starts and end the same way: with the customers needs in mind. From the moment our crew arrives on site to the moment they leave absolutely every step taken is done so in order to finish the job in a timely fashion. Once our crew has finished your project they clean up and move on- often before the home or business owner realizes that they were even there!

You can be assured that care and attention to every aspect of your installation will bhe attended to, and we stand behind our work even after we’ve completed your project!

From the planning stages of your eavestrough installation, to providing proper supplies and materials, to the meticulius and efficient cleanup of your project, we will make sure that you are satisfied and happy with the final result.

Contact us today for a free quote! Let us show you how we can suit all your eavestrough and siding needs.