Roof Inspections & Roof Certifications Dec, 2016. Call Portland Roof and Deck for all your roofing and decking needs. 503.465.4940.Roof Inspections, There is a difference in a roof inspection and a roof estimate. The inspection is a unbiased report on the condition of your roof. A estimate is the cost to repair or replace your roof.We get several request to do inspections, our basic inspections start at $300 and go up from there. We do not do free estimates for people that are looking to buy a house.What that means is, when you receive your house inspection from the inspector you have hired, and it says consult a roofer about the roofs condition and you also need a 3 year binder or certification on the roof, that is what we do.If you go with us to replace the roof after you own the house, we will credit the inspection and estimate charge back towards the invoice.Inspection covers:roof life.metal flashing condition.pipe jack installation and condition.Air vent installation and condition.Valley condition.Inspection Cost: 1 story house with 5/12 pitch or lower. $300.1 Story house with more then a 5/12 pitch $375.2 stories and above, with a pitch lower then 5/12 $450.2 Stories and above, with a pitch greater then 5/12. $550.Roof Certification – when your bank asks for a roof certification they are wanting a guaranty that there investment is safe from water damage for the term of the certification, and if there is a problem that it will be taken care of by the company that certified the roof.Roof Certification Cost:A 3 year roof Certification cost 25% total replacement cost of a new roof.A 5 year Certification cost 30% total replacement cost of a new roof.