Architectural shingles
Metal roofing
Tile roofing
GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Replacement Across North Tustin
A full roof replacement in North Tustin typically runs between $18,000 and $42,000 depending on material choice, decking condition, and roof complexity. Most jobs on the custom ranches here take 5 to 10 working days once materials land. We know the streets off Newport Avenue, the hillside lots in Cowan Heights, and the sprawling single-story homes tucked behind mature eucalyptus rows off Foothill Boulevard. If you’re looking at a replacement, call us at (866) 850-2496 and we’ll walk the roof with you before you spend a dollar.

Why Windmill Roof Repair Is North Tustin’s Preferred Roof Replacement Company
Ruben Ochoa started Windmill Roof Repair with one conviction: a homeowner should see the actual condition of their roof before deciding to replace it. That matters more in North Tustin than almost anywhere else in Orange County. Here, you’re not dealing with a simple tract-home rectangle. You’re dealing with original shake over skip-sheathing, deep valleys at odd planes, and additions that were framed in the 1970s with low slopes that hold water. We walk these roofs with you, point to what’s actually failing, and show you the photos. You see it before you sign anything.
We work with seven shingle and tile brands, including GAF, CertainTeed, and Owens Corning, so the recommendation you get is matched to your roof and your budget. Not to a preferred-vendor contract. Repair when you can, replace when you must. That’s the whole approach.
Styles & brands we work with






Asphalt Shingle Roof Replacement in North Tustin
Asphalt Shingle Roof Replacement in North Tustin is the most common route when an original wood-shake roof has reached the point where patching no longer makes sense and the homeowner wants a clean, Class A assembly without the weight of tile or the cost of metal. Shingle replacement here generally runs $18,000 to $28,000 for a typical 2,800 to 3,500 square foot single-story ranch, though that range climbs once decking replacement enters the picture. On shake tear-offs, decking replacement is the norm, not the exception.
The tear-off reality on older North Tustin ranches
Original cedar shake from the 1960s and 1970s sits on skip-sheathing: spaced 1×4 boards, not solid plywood. Building code today requires solid decking under asphalt shingles. So a shingle replacement on these homes means tearing off the shake, pulling the old spaced sheathing, and laying new OSB or plywood across the entire footprint. That’s a significant line item you won’t see on a quote for a 1990s tract home in Tustin. We’ll show you exactly what’s under your shake before we price the decking, not after.
Which shingle lines hold up on foothill exposures
South- and west-facing planes in North Tustin take brutal afternoon sun from late spring through early fall. We lean toward CertainTeed Landmark and Owens Corning Duration lines for those exposures because their granule adhesion and dimensional weight handle the heat better than thinner three-tab products. On homes backing up to Peter’s Canyon or the wildland edge off Cowan Heights, we also discuss Class A shingle options and ember-resistant ridge vent details with your insurance carrier’s requirements in mind.
New Roof Installation in North Tustin
New Roof Installation in North Tustin comes up in two situations: a tear-off replacement where the homeowner is switching materials entirely, or an addition/ADU/detached structure that needs its own roof from scratch. For a full new roof on a custom ranch, pricing lands between $22,000 and $42,000 depending on whether you’re going architectural shingle, concrete tile, or standing-seam metal. Detached garage and cabana roofs run smaller, often $6,000 to $14,000, but they still need proper underlayment, flashing, and tie-ins to the main structure.
Concrete tile as a shake replacement
Many North Tustin homeowners want to keep the heavier, more substantial look of their original shake without the fire risk and rot cycle. Concrete tile delivers that. The catch is structural: original shake framing wasn’t always designed for tile weight. We check the rafter spans and bearing before recommending tile. If the framing needs reinforcement, we’ll tell you and quote it plainly. No surprise change orders after the tear-off starts.
Standing-seam metal for hillside and flat sections
Homes in Cowan Heights and along the canyon roads off Newport Avenue often have low-slope sections over covered patios, breezeways, and detached workshops. Those areas need more than a reslope: they need a roofing system that can handle standing water during a heavy rain and dry out fast in the heat. Standing-seam metal handles both, and it’s Class A for fire, which matters when your insurance carrier is asking about ember resistance. It costs more upfront, but it’s the right material for the right section, and that’s the call we’ll help you make.

Trusted Brands We Service in North Tustin
We’re not tied to one manufacturer. That’s the point. Windmill Roof Repair works across GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral so your roof gets the right material for its actual conditions, not the material a contractor has a quota to move. Seven brands, one crew. For North Tustin customers, that means if you need a specific shingle color to match an HOA requirement or a tile profile your insurance carrier will accept, we can source it. Local material lead times from our Orange yard to your street off Foothill Boulevard run short, which keeps your replacement moving.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in North Tustin Homes
- Skip-sheathing under original shake. The spaced 1×4 boards under 1960s and 1970s shake roofs don’t meet code for any modern roofing material. A replacement almost always includes a full decking upgrade, which honest quotes will show as its own line item.
- Valley flashing packed with eucalyptus and avocado debris. The mature tree canopy that defines these neighborhoods drops leaves and branches into deep roof valleys, holding moisture against flashing for months. By the time we tear off, the valley boards underneath are often soft and need replacement.
- Failed low-slope sections over additions and covered patios. Those 1970s additions with a nearly flat pitch were never flashed properly at the flat-to-pitch transition. Original underlayment dries and cracks over time, and water finds its way in through the seams.
- Sun-baked south and west planes with aggressive granule loss. Foothill sun is relentless. Shakes delaminate and curl on these exposures years before the rest of the roof. If one plane looks ten years older than the others, that’s a heat-driven failure pattern we see all over North Tustin.
Pricing for Roof Replacement in North Tustin, CA
A full roof replacement in North Tustin typically lands between $18,000 and $42,000. The spread is real because the homes here vary widely: a compact single-story off Tustin Avenue can come in around $18,000 to $22,000 for architectural shingles with new decking, while a sprawling multi-plane ranch with tile, metal low-slope sections, and structural reinforcement can reach $38,000 to $42,000. The three factors that move your price most are decking condition after tear-off, material choice, and whether your insurance carrier is requiring a documented Class A assembly. We give written, line-item quotes before any work starts so you can compare bids fairly. Call (866) 850-2496 to schedule a free roof assessment and get exact numbers for your roof.
We Also Serve Cities Near North Tustin
Our crew handles Roof Replacement across the surrounding foothill communities. You’ll find us regularly on job sites in Tustin, Orange, Villa Park, and Santa Ana. If you’re in one of those areas or anywhere nearby, the same seven-brand material access and the same no-pressure inspection applies. This page covers Roof Replacement in North Tustin specifically, but our service area runs wider than one ZIP code.
Serving North Tustin, CA — Our Local Coverage Area
We’re based in the North Tustin area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs About Roof Replacement in North Tustin
North Tustin roof replacements cost more primarily because the housing stock is older, larger, and structurally different. A 1970s custom ranch with original shake sits on skip-sheathing that requires a full decking upgrade before any new roofing can go down. Tract homes in Tustin built in the 1990s already have solid OSB decks, so a simple re-roof is genuinely possible there. Add in the multi-plane complexity, deep valleys, wildland exposure, and low-slope sections over additions, and you’ve got a job that’s simply more involved. Call (866) 850-2496 and we’ll walk your roof so you see exactly where the money goes.
It depends on your framing, your insurance requirements, and how long you plan to stay. Concrete tile matches the visual weight of original shake and lasts decades, but it’s heavy and some original ranch framing needs reinforcement before tile goes on. Metal, particularly standing seam on the low-slope sections, is lighter and gives you a clean Class A fire rating that hillside insurance carriers appreciate. We’ll check the structure and give you both options in writing. The right material for your roof, not ours.
It can, and in that area it usually helps. Homes backing up to wildland off Newport Avenue and in Cowan Heights are increasingly seeing insurance carriers request proof of a Class A, ember-resistant roof assembly. A new roof that meets those standards, with documentation from our crew, can strengthen your renewal position. We photograph the tear-off, document the underlayment and drip edge details, and provide a written record of the assembly for your file. Call (866) 850-2496 to discuss what your carrier is asking for.
Those sections get treated as their own roofing system, not an afterthought. We install ice and water shield or modified bitumen across the low-slope area, flash all penetrations with new boots and collars, and transition cleanly where the flat section meets the pitched planes. If the slope is too slight to drain properly, we’ll tell you and discuss options like a tapered system or a metal overlay. These sections fail most often on North Tustin homes, so we quote them honestly from the start.
Line up the line items side by side. Is decking included as a priced line or buried as a vague contingency? What underlayment is specified, and is it Class A if your insurance carrier cares? Are low-slope sections broken out separately or lumped into the main square footage? What tile or shingle brand and product line is named? If one bid omits decking on a 1970s shake tear-off, that’s not a better price, that’s an incomplete job. We give you a written, line-item quote so you can compare honestly. Call (866) 850-2496 to get yours.
If you’re reading this and you know your North Tustin roof needs attention, the next step is a phone call, not a commitment. We’ll inspect your roof, show you what we find, and give you a written estimate that covers the work your roof actually needs. No pressure, no rush. Call (866) 850-2496 to schedule your free estimate.
Written by Ruben Ochoa, Owner at Windmill Roof Repair, serving North Tustin from our Orange, CA base.