North Tustin, CA, an unincorporated Orange County community of 25,718 residents (2020) in the foothills above Tustin and Orange, marks the outer edge of where we work as a roofing contractor. The drive from Rosemead Blvd runs about 70 minutes and 35 miles, so we schedule North Tustin work as planned projects.
North Tustin is mostly hillside estates on large lots, including the neighborhoods of Lemon Heights and Cowan Heights. Many homes are custom builds with long, complex rooflines, multiple hips and valleys, skylights and tile or shingle roofs. Because the area is unincorporated, OC Public Works issues the permits instead of a city.
Hillside estates in Lemon Heights and Cowan Heights
Custom homes here tend to have more roof per house than a tract home: more valleys, more transitions between levels and more penetrations. Those details are where leaks start. On hillside lots, long driveways and steep grades also affect how tile is delivered and where debris can be staged.
Open hillsides and nearby Peters Canyon Regional Park put some properties near brush and wildland edges. Look the parcel up on CAL FIRE's hazard map; a Very High rating brings Chapter 7A's Class A roof and ember-vent rules into a North Tustin reroof.
Skylights, tile and complex rooflines on large-lot homes
Many North Tustin homes have skylights that are as old as the roof. When we repair or replace the roof, we often replace or reflash them at the same time to avoid opening the tile twice. Our skylight service covers repairs, replacements and new installations.
On tile roofs, the tile often outlasts the underlayment. We lift and relay sound tile over new underlayment where that makes sense, and price a full replacement where tile is broken across the roof.
Big lots usually mean big trees. Leaves, seed pods and bark collect in the long valleys of a complex roof, hold moisture through the rainy season and wear the valley metal from underneath. We clear the valleys during inspections, check the metal for pinholes and rust, and replace valley flashing before it lets water into the deck.
Roofing services for North Tustin, CA properties
Roof Repair
Complex valleys and transitions on custom homes are where most North Tustin leaks start, especially where a lower roof meets a two-story wall and the step flashing has aged out.
Roof Replacement
Large tile and shingle roofs on older estates are reaching the end of their underlayment, and a reroof here is planned around long driveways, staging space and county inspections.
Skylights
Original skylights are often replaced or reflashed during a reroof here, so the tile around them only has to be lifted once and every curb gets new metal.
Tile Underlayment Replacement
Sound tile can be relaid over new underlayment on many hillside homes, which keeps the original look and costs far less than ordering a full new tile roof.
Roof Flashing Repair
Long valleys under big trees on Lemon Heights and Cowan Heights lots hold wet leaves and seed pods, and the valley metal beneath them rusts through from the underside.
Fire-Resistant Class A Roofing
Lots near Peters Canyon Regional Park and open hillside brush may fall in mapped fire hazard zones, where a reroof needs a Class A assembly and ember-resistant attic vents.
Gutter Guards
Mature trees on large North Tustin lots shed leaves, bark and pods into long gutter runs, and guards cut down on ladder work along two-story eaves on sloped ground.
Panorama Heights, the Tustin Foothills name and the county's largest CDP
North Tustin covers about 6.6 square miles and is the largest unincorporated community in Orange County. It first showed up in the 1970 census as Tustin Foothills, and its neighborhoods include Lemon Heights, Cowan Heights, Panorama Heights and East Tustin. The city of Tustin wraps around it on three sides and Orange sits to the north, which is why so many addresses here look as if they belong to one of those cities.
With no local government, community issues often run through the Foothill Communities Association, a nonprofit active since the 1960s, while building permits stay with OC Public Works. Schools are split as well: Tustin Unified serves most of the area and Orange Unified covers Panorama Heights and Crawford Canyon. That patchwork explains why neighbors on the same hillside sometimes give us different city names for their homes.
Roof trouble in North Tustin?
Call with your address. About 70 min (35 mi) from our Rosemead Blvd base, with same-day or next-day visits when crews are free.
- 4.9 from 48 Google reviews
- Based on Rosemead Blvd
- Photos and a written quote before work
Who handles roof permits for a North Tustin address?
OC Public Works issues building permits for North Tustin, because it is outside city limits. Mailing addresses here often say Tustin or Santa Ana, which can send homeowners to the wrong office. We confirm the parcel is county territory, then file with OC Public Works and book the county inspection if your scope needs a permit.
Planning a North Tustin project from Rosemead
Call (725) 745-8803 to set up an inspection; a North Tustin visit can usually be arranged same-day or next-day when crews are free. What you receive: a photo for each finding, plus a written quote pricing the permit, skylights, access labor and deck replacement as separate items. The same crews handle roofing in Rosemead and the cities near North Tustin, including Tustin, Villa Park, roofing in Orange and Anaheim.
Reviews from San Gabriel Valley customers
4.9★ from 48 Google reviews (checked Nov 2026)
“Our flat garage roof had a leak, and since the main roof was already aging, we decided to handle the full roofing project at the same time and upgrade from asphalt shingles to a metal roofing system. …”
“the roofing crew did an excellent job replacing the roof on my house in rosemead. we had some hail damage after a storm, which another roofer first pointed out. i wanted a second opinion, so i called for a quote, and the response was fast. tanner came by, explained clearly what needed fixing, and was very professional and friendly. …”
Roofing questions from North Tustin
My mailing address says Tustin. Am I in the city or in North Tustin?
Many North Tustin homes carry a Tustin or Santa Ana mailing address but sit outside both cities. The county assessor's parcel records show which jurisdiction applies. Send the address and we will check it before applying, so the permit goes to OC Public Works or the city, whichever is correct.
Should I replace old skylights during a North Tustin reroof?
Usually, yes. Skylight flashing is tied into the roof, so replacing or reflashing the skylight during a reroof avoids cutting into new tile or shingles later. If the units are sound, we can reuse them with new flashing. We include each skylight as a separate line in the quote so you can decide.
Why does a North Tustin reroof take longer to plan than a tract roof?
Mostly because of size and access. A custom North Tustin home can have several roof levels, dozens of valleys and hips, skylights and a long sloped driveway, so we measure each section, plan where tile pallets and the bin can sit, and confirm the parcel with OC Public Works before pricing. Those steps keep the quote complete instead of adding change orders mid-job.
