Improving Your Home Is Our #1 Priority.

Our Team Specializes in Roofing, Siding, Windows, Gutters and Blown-In Insulation.

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Check out a message from our owner Fred:

Welcome to Grennan Construction

What makes Grennan Construction different?

  • Family-owned and operated since ’98
  • Trust – Integrity – Professionalism – Honesty
  • No pressure sales
  • Fully licensed and insured
  • Inspections are meticulous, covering every element
  • Certified & trained master installers
  • All work is 100% guaranteed – We stand behind our work!
  • We offer Military and Senior discounts
  • We take pride in protecting your property as if it were our own
  • A+ Rating with BBB & Angie’s List

View Our A+ Ratings

Grennan Construction is proud to announce that we have been designated as a 2013, 2014 & 2015 Angie’s List Super Service Award Winner! This honor is bestowed upon businesses that have maintained superior service ratings and reviews on Angie’s List throughout the past year and rank in the top 5% of their business category. Providing top-notch customer service is one of the pillars of our business. We are grateful to all of our customers who took the time to provide feedback on their experiences with our company which led to this recognition. Thank you

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