We don't post a flat number here because a 16x7 steel sectional and a custom wood-composite double door aren't the same job, and neither is a straightforward swap versus one that needs jamb repair first. What we can tell you is that Cerritos households have a median income of $133,953, well above the wider service area's $101,138, and that shows up in what people here typically choose - more owners spring for insulated steel or composite doors with better hardware rather than the cheapest sectional that fits the opening. That's a homeowner decision, not a sales pitch from us; a basic steel door will do the job and cost less. We'll give you the real number for your opening and your choice of door once we've measured, not before.