Residential roofing
Residential roofing across greater LA and Kern County
Houses, not warehouses. Tile, architectural shingle, low-slope, and metal - repaired, relaid, or replaced by a licensed crew that does roofing every day and nothing else.
- CA Licence #1052777
- We price match like-for-like bids
- 5–10 years on labor and workmanship
Shingle roof replacement - Monterey Park, CA
What we do
Residential roofing services
Roof repair & leak diagnosis
Finding the actual source of a leak, which is often nowhere near the stain on your ceiling. Tile, shingle, flat, and metal.
Learn more →Start here for tile
Tile underlayment & lift-and-relay
The tile lasts 50 years. The felt under it lasts 20 to 25. If your tile roof leaks with nothing visibly broken, start here.
Learn more →Reroofing & roof replacement
Full tear-off and replacement in architectural shingle, tile, and standing-seam metal, with the deck repaired properly underneath.
Learn more →Roof inspections & certifications
A written report with photos. For a sale, for an insurance question, or just to find out how much roof you have left.
Learn more →Gutters
Seamless gutter installation, replacement, and repair - sized and pitched for the roof actually draining into them.
Learn more →Roof maintenance
Scheduled service before the rain arrives. Cheap compared to what it prevents, and it keeps a workmanship warranty meaningful.
Learn more →The one most people get wrong
Your tile is fine. Your underlayment probably is not.
Clay tile runs 50 to 75 years and concrete tile 40 to 50. The felt underneath - the layer that is actually keeping water out of your house - is generally done around 20 to 25, and Southern California heat cycling does not help. The roof looks perfect from the street the entire time.
A large share of the tile housing stock in the San Gabriel Valley is at or past that window. If you have had a leak with no broken tile anywhere near it, that is the classic signature.
The roofs we work on
Clay and concrete tile
Dominant across the San Gabriel Valley - Spanish Colonial and Craftsman homes from before 1940, and mid-century tract tile after it. Tile roofs almost never fail because of the tile. They fail at the underlayment, at the valley metal, and at the ridge mortar. Our tile work is mostlylift-and-relay underlayment replacement and targeted flashing rebuilds.
Architectural and composition shingle
The workhorse in Kern County and on newer LA-area tract homes. Shingle roofs are straightforward to diagnose and cost-effective to replace, and manufacturer warranties on shingles include lifetime options. The failures we see are granule loss on sun-beaten slopes, nail pops, and flashing at wall intersections and chimneys.
Low-slope and flat sections
Porches, additions, patio covers, and mid-century flat-roofed houses. These are where residential leaks concentrate, because there is no slope to bail out a marginal detail. Ponding, failed seams, and drain and scupper problems are the usual causes. Where a flat section is large enough to be worth it, a silicone restoration system can be the better answer than a tear-off - we are aProgressive Materials Certified Licensed Applicator, which means we can issue the manufacturer warranty directly.
Metal
Standing seam and screw-down panel, including manufactured and mobile home roofs - a significant part of the housing stock in Kern County and the foothill communities. Long service life, but the fasteners, the panel ends, and the transitions are what need attention.
Two very different climates, two different roof problems
Greater Los Angeles and the San Gabriel Valley
Long dry stretches with intense UV, then atmospheric rivers that dump months of rain in a few days. Santa Ana winds drive rain sideways under tile and lift shingle edges. The dry season hides everything - a roof that has been failing quietly since May announces itself in the first real storm of the winter. Older housing stock adds two wrinkles we deal with constantly: skip sheathing under tile on pre-1940 homes, and design review requirements in cities with preservation ordinances when a street-visible roof material changes.
Kern County
Roughly seven inches of rain a year, essentially all of it between November and March, and brutal summer heat the rest of the time. Heat and UV do most of the damage here, on the roof covering and on anything asphalt-based underneath it. September through December is the right window for inspections, gutters, and repairs; by the time it is actually raining, everyone is calling at once.
Based in Lake Isabella, with the majority of our residential work in the greater Los Angeles County area and across Kern County. See all service areas.
Why Green Coast
Straightforward reasons to call us
We price match
Bring us a like-for-like bid from another licensed contractor and we will match it.
Licensed, bonded, and insured
California contractor license #1052777. Verify it yourself at cslb.ca.gov.
Certified silicone applicator
One of the few contractors in the region certified by Progressive Materials to apply and warranty silicone restoration systems.
Workmanship warranty
5–10 years on our labor and workmanship, on top of the manufacturer warranty.
Two CSLB classifications
We hold C-39 (Roofing) and B (General Building), where most roofing competitors carry only the C-39 - which matters when a job turns up fascia rot, framing repair, or work involving more than one trade.
Materials carry the manufacturer's warranty on shingles, including lifetime options. On top of that, our own workmanship is warranted 5–10 years on labor and workmanship. California license #1052777, in business since 2019.
What you end up with
A written scope naming the actual materials going on your roof, a crew that does roofing and the carpentry around it rather than subcontracting it out, and a roof backed by both the manufacturer's materials warranty and our own 5–10 years on labor and workmanship workmanship warranty.
Get a free estimate
Tell us what is going on with your roof. We will come look at it - including the parts you cannot see from the ground - and give you a straight answer in writing.
Already have a bid? Bring it. We match like-for-like scopes from other licensed contractors.