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We are in the process of replacing 14 of our windows in our home. We got different offers from different companies. In general, all windows shared similar properties except for the balance systems. While some companies use the Block & Tackle balance system, others use the Constant Force (Coil) balance system. Naturally, each company is proud of its product and the system it uses, while bashing the other methods.
We would love to hear some professional, experienced and unbiased opinions from FHB users, so we can come to a final decision.