ADU Roof Replacement in Temple City from $3,000. A garage roof was built to shelter a car. A bedroom is a different job. Free inspection and a written quote.
Under a heavy canopy a converted garage has a second problem on top of the usual one. Permanent shade means the roof never fully dries, so the condensation that comes from the new room below has nothing to help it clear from above. Ventilation matters more here than almost anywhere.
California ADU law has made garage conversion unusually straightforward here: no replacement parking is required when you convert, and a valid application gets a 60-day review. In one of the valley's densest cities that has produced a lot of conversions -- and a lot of roofs now doing work they were never designed for.



Be clear about where that range comes from: there is no published market figure for an ADU roof, because nobody measures it as a category. It is arithmetic. A typical detached garage is 400 to 500 square feet, composition runs $7 to $11 per square foot in Los Angeles County, and insulation and ventilation the original roof never had is the rest. We would rather show you the sum than quote you an average that does not exist. Under this canopy two lines belong on the quote that would not appear elsewhere: protecting or trimming limbs before a tear-off, and enough gutter and outlet capacity for the actual leaf load. Neither is padding, and both are cheaper than the roof they save.
A garage roof was built over a car. No insulation, minimal ventilation, and frequently no underlayment worth the name, because none of it mattered. Put a bedroom underneath and all three matter immediately.
A converted garage that is already lined, so the work has to be done from above. Ventilation added to a roof with no eave to vent into. And an older garage where the deck is spaced boards rather than sheeting.
Doing the roof before the conversion is lined, and doing it at the same time as the house if the house is anywhere near due. Mobilization is the fixed cost -- the roof is the variable one.
The canopy is the roofing story here in a way it is not further south. Mature street trees mean leaf litter in valleys and gutters holding water against the covering after rain, limbs abrading the surface in wind, and shaded slopes that never fully dry -- all of which age a roof on a different schedule from the sunlit side of the same house.
On most parcels here there is more than one answer, and the expensive mistake is replacing the wrong one.
Look away from the leak. If the covering across the rest of the slope still has granules, still lies flat and is not brittle, that roof has life in it. A failed flashing, a split upstand or a slipped course is a repair costing hundreds -- and each is routinely presented as proof the whole roof is done.
A tile roof quoted at $30,000 to $60,000 for replacement is very often an $8,000 to $22,000 lift and relay, because the tile is fine and only the felt beneath it has failed.
In a converted garage, damp that is worse in dry weather is condensation, not a leak -- a room built under a roof that was never insulated or ventilated. Replacing that roof without fixing that is money spent on the wrong problem.
Tree work is a real line on a Temple City quote and it is not padding.
Canopy debris is what kills tile roofs here.
Shade is not kind to asphalt.
Under this canopy the outlet blocks, and once it blocks a flat roof becomes a shallow pool.
The shaded slope fails first under this canopy, reliably, so a single-slope partial is often technically correct here.
Oldest settlement in the valley. Rarely one roof.
A different city, with a different department.
Room to work, which makes a tile relay cheaper.
Same stock, more space, its own conversion rules.
Old stock and skip sheathing. Check the deck.
Hillside split levels and short low-slope links.
Small apartment blocks and the logistics they bring.
The questions this job turns on, answered up front.
That symptom is the opposite of a leak, and it is the most useful thing you can tell us. Warm moist air from a new room hits a cold uninsulated deck and condenses. It shows up in dry cold weather because that is when the deck is coldest. The fix is insulation and ventilation, not sealant.
Not always required, but it is much cheaper before the ceiling is lined, because everything can be done from below. Once it is lined the same work is a roof job from above. If the conversion is going in anyway, the roofing decision belongs at the start of the 60-day review, not after it.
Re-roofing is permitted work and we pull it. Which city matters more here than almost anywhere: El Monte and South El Monte are separate incorporated cities with separate building departments, and an application on the wrong desk costs a week. The inspection that comes with the permit is your independent check that the specification you paid for is what went on.
Not on a pitched roof here. The steep-slope cool-roof requirement applies in Title 24 climate zones 10 to 15, and El Monte is in zone 9. Low slope is different -- an aged SRI of 75 applies in all sixteen zones once you replace 50% or more of the roof area in a rolling year. Anyone telling you a pitched El Monte roof must be a cool roof is quoting the wrong zone.
No. The inspection is free, it covers every structure on the parcel rather than the one you rang about, the written quote is free, and neither carries an obligation. What we will not do is give you a number at the curb without going up.
Free inspection -- house, garage, addition and patio cover, not just the one. A written quote against a written scope, itemized by structure.