BOOK A FIRST FREE VISIT TO YOUR PROPERTY BY OUR PROFESSIONALS Polygon Engineering will help you in obtaining a Building Permit to legalize the basement of your house as a Second Rentable unit. Our associate team of dedicated Professional Engineers, Architectural designers, Fire code experts, AutoCAD drafters ensure that the Second Unit meets all the mandatory requirements as per the Building, HVAC, Fire Code and City Bylaws. Our Licensed Engineers will make sure that the structural integrity of external load-bearing walls of your house doesn't get weakened due to providing additional and/or enlarging existing windows. We will directly deal with the Registration Process of the City to get you the building permit. TO FACILITATE BETTER COMMUNICATION WITH OUR SOUTH ASIAN CLIENTS, WE ALSO SPEAK PUNJABIAND URDU LANGUAGES. If you are planning to upgrade the UN-FINISHED basement of your house into a LEGAL BASEMENT APARTMENT, our Experienced Contractors will do all kind of construction work as per Safety, Quality, Schedule and your Budget.Our in-house construction team also provide construction services of: Side Entrance Door/Below Grade Entrance Basement Finish and Renovation Garage / Deck / Porch Addition / additional room over existing garage Renovation, Addition, and Alterations Custom Home For all your Architectural, Engineering and Construction needs, call SACH @ (647) 570-7224, and we will provide you professional services at an affordable fee. and within your budget.