R.O.A Estimating Services is based in Edmonton, Alberta and we offer wide range of estimating services; measurement/taking-off quantities, preparing cost estimates and construction project management services in general to Contractors and Sub Contractors for various types of projects within Alberta and Canada. We are reliable, efficient and can be trusted with your bidding for projects. Our Sub Trade Estimating Services includes, but not limited the mentioned trades below: Concrete Form Work Concrete Finishing (Flat Work) Damp Proofing Framing Roofing Exterior - Siding/ Fascia/Eaves Masonry Drywall Painting Finishing Residential Projects, Commercial Projects, Institutional Projects & Civil Engineering Projects.