A new roof in Carlsbad runs about $13,500 – $26,500 installed on architectural asphalt shingle and $26,000 – $56,500 on concrete tile, for the 24-square roof that is typical of houses here. That is a national base cost multiplied by a regional index of 1.425 for this area, with the full range by covering set out below. Most houses here fall between 20 and 27 squares. Modelled figures rather than quotes. What actually moves a bill is layers, soft decking and access, and none of those three can be known from a desk.
Price per square, and for a whole roof
Ranges rather than prices, because a roof is priced by what comes off as much as by what goes on. A typical single-family roof in Carlsbad works out at about 24 squares in this model, with most houses between 20 and 27 — a square being one hundred square feet of roof surface. 3-tab asphalt shingle in Carlsbad runs about $550 – $725 a square installed, or $11,000 – $19,500 for a roof of typical size here. Rated life 15 to 20 years. The cheapest thing that still counts as a roof. Fewer and fewer crews will install it.
Where these numbers come from
What these figures are: arithmetic on a regional index. What they are not: quotes, averages of local jobs, or anything anybody has agreed to do. These are modelled figures, not quotes: a national base cost multiplied by a regional index of 1.425 for this area. Nobody can price a roof without looking at it, and the model does not pretend to.
What to specify in Carlsbad, and why
There is no best roofing material. There is a material that suits this climate, this housing and this budget, and the local half of that is the half that gets skipped. Ember and wildfire exposure in Carlsbad: Class A assemblies and closed-off vents matter more here than the colour of the shingle. Carlsbad sits about 3.8 miles from the Pacific. At that distance airborne salt reaches the roof, and it works on the metal — nails, valley flashing, vent collars, gutter hangers — years before the covering itself wears out.
Tear-off, layers and what is underneath
What is under the top layer is the real question, and the honest answer before the tear-off is "we will find out". Structural repair with decking and framing in Carlsbad: $3,800 – $11,500. Long-running leaks get expensive because of what they soak, not what they break.
Tear-off, per layer per square in Carlsbad: $163 – $301. Two old layers costs roughly twice what one does to remove and tip. Rotten decking, per sheet replaced in Carlsbad: $100 – $200. Only found once the old covering is off. Always budget for some. CALGreen requires 65 per cent of nonhazardous construction and demolition waste to be diverted from landfill — but that chapter applies to additions and alterations that increase a building's conditioned area, volume or size, and a straight re-roof does not. So the state mandate generally does not reach a re-roof.
How Carlsbad is covered
Carlsbad is this site's own patch. What happens here is straightforward — one form, and up to three independent contractors who work in Carlsbad contact you directly with their own quotes. This is a matching service, not a roofing company, and it does no roofing work of its own.