If you are thinking about getting a quote from Denver Deck Builders, ask any of the following items: -Can you provide a comprehensive breakdown of the costs? This should include, material costs, labor costs, overhead & profit percentage included in the project. Additionally, you should also ask for the labor rates they use for any changes or agree on a percentage of mark up on change orders. The way the contract is written they can charge whatever percentage they want and a direct quote from the Owner "we purposely priced it high so we can maintain our schedule". -Can you provide proof of insurance and workman's comp? -Have you ever fired a worker because they felt unsafe on one of your projects? -Can you confirm that you are providing a code compliant deck? -Can you provide the percentage of extra material (scrap) ordered? Be sure to cross out the line in the contract that states they own any extra material on site, you are the customer, you paid for it, you should own it. -Will you extend your (1) year warranty since you state that you can't do warranty work until Nov-Feb? -Will you be providing a drawing that includes specific details of how the deck is constructed? This drawing should include Fully dimensioned and scalable plans, mfg. products & color selections (deck, rail, fascia, border, etc.), details on how the deck will be attached to the house (ledger board), Details on how the fascia will be installed, flashing details, details showing decking (direction, joint detail, fascia interaction), what type of hardware/fasteners that will be used, etc. The drawings they provide are intentionally vague so that they change order. -Can you provide me with the 3rd party structural engineering calculations you used for my deck? Can you show me the span table for the type of lumber selected? Are you accounting for deflection, or will my deck feel like a trampoline? Have you considered the snow load? -Do you train your employees to follow manufacturer's installation requirements? Will you provide your employees with a copy specific to the products they are installing on the job site? -In the last 10 years have you been in litigation due to one of your projects? -Will you replace the deck boards if you used an unapproved chalk and permanently stained the decking? -Do you call and schedule 811 before you dig? You state that you are not responsible for sprinkler, cable, or phone lines being cut, will you schedule and pay for a qualified repair technician if you damage any of these items? -Will you clean up the job site at the end of each day? Or at a minimum the end of the work week?