Metal roofing
Architectural shingles
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 Santa Ana
Roof replacement in Santa Ana typically runs $9,500 to $18,500 for a standard single-story home, depending on material, roof complexity, and whether we’re addressing hidden decking or underlayment damage. Most full replacements take three to five working days once materials are on site. If you’re weighing repair against replacement on a pre-1960 bungalow or Spanish Colonial Revival home, call us at (866) 321-6172 and we’ll tell you which one actually makes sense.
We know Santa Ana’s older neighborhoods block by block. The rooflines in Wilshire Square don’t behave like the tract homes off Edinger, and the ficus canopy on a French Park street changes how fast a roof deck deteriorates. That local knowledge determines what we specify, what we charge, and how we schedule the work.
Why Van Nuys Roofing Co Is Santa Ana’s Preferred Roof Replacement Company
Most roofing companies in Orange County push one brand. We don’t. Our crews are trained on GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral, which means your roof gets the material that fits your house and your budget, not the material that fits our supplier agreement. For Santa Ana homeowners with older homes, that matters because the right shingle on a 1940s low-slope roof can mean the difference between a 20-year roof and a 40-year roof.
Santa Ana customers call us specifically because we inspect first and recommend second. A standalone roof inspection from us costs nothing and commits you to nothing. We’ll tell you honestly if you have five years left or five months. Rick Dominguez built the company on that straight answer, and it’s why homeowners in Santa Ana keep our number. We’re not trying to sell you a roof. We’re trying to tell you the truth about the one you have.
Our crews know the 92701, 92703, and 92704 zip codes well. We schedule Santa Ana jobs the same way we schedule them in Van Nuys: arrive when we say, protect your landscaping, and leave your property cleaner than we found it.
Styles & brands we work with






Roof Installation in Santa Ana
Roof Installation in Santa Ana rarely means a simple tear-off-and-replace on these older homes. A proper installation here usually starts with what’s underneath: skip sheathing from the 1940s, failing underlayment from heat cycling, or rotted decking under the jacaranda. We address that first, then build up the roof system so the visible shingle is the last layer, not the only one.
For a typical single-story bungalow in Santa Ana, full Roof Installation with architectural shingles runs $9,500 to $14,500. If we’re dealing with extensive decking replacement or a low-slope section requiring built-up roofing or modified bitumen, expect $14,500 to $18,500.
What We Install Here
Santa Ana’s stock splits three ways: asphalt shingle roofs on post-war tracts, clay tile on Spanish Colonial Revivals, and low-slope composition or built-up on older bungalows and additions. We handle all of it. Our sub-services include Full Roof Replacement, New Construction, Asphalt Shingles, Architectural Shingles, Roof Decking Replacement, and Flat Roofing.
New Roofs Don’t Have to Erase Character
We match original rooflines on Craftsman and Spanish Colonial homes. If your home in Wilshire Square has a low profile with curved tile, we don’t flatten it with a generic shingle field. We preserve the silhouette and upgrade what you can’t see.
Roof Replacement Contractor in Santa Ana
Roof Replacement Contractor work in Santa Ana means we take the whole system down to the deck, assess every layer, and rebuild it to current code with materials chosen for this climate and this housing stock. That’s a different job than it is in Irvine or Tustin, where newer builds have modern decking and fewer surprises. Here, we expect surprises and price honestly for them.
A standard full replacement on a 1,200 to 1,800 square foot Santa Ana home falls between $10,000 and $17,000. Salt air corrosion on flashing and fasteners, old skip sheathing, and roof-to-roof transitions on add-ons are the common drivers that push costs toward the higher end.
Roof Decking Replacement
Under mature ficus and jacaranda canopies, decking rot hides for years. We don’t paper over it. We replace rotted 1×6 skip sheathing with solid plywood or OSB, then install a self-adhered ice and water shield in valleys and around penetrations. This is where the hidden cost lives, and we’ll show you photos before we ever write a change order.
Flat Roofing on Older Additions
Many Santa Ana homes have additions or patios with flat or low-slope sections that create awkward roof-to-roof transitions. We install modified bitumen or TPO on those sections and tie them into the main slope with proper flashing and crickets. Done wrong, these are leak magnets. Done right, they vanish.
Trusted Brands We Service in Santa Ana
We stock GAF Timberline HDZ and CertainTeed Landmark architectural shingles for Santa Ana jobs, because those two dominate the replacement market here and most homeowners want a premium dimensional look without waiting on a special order. Owens Corning and IKO are available too when the spec calls for them. The point isn’t the brand. It’s that we know the installation requirements for all seven, so your manufacturer warranty stays intact. GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, Boral. If it goes on a roof, we know it.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in Santa Ana Homes
- Salt air fastener and flashing corrosion. Homes in the coastal-inland transition zone, especially in the western parts of Santa Ana, show premature rust on flashing and nail heads. We specify stainless steel ring-shank nails and marine-grade drip edge on these jobs.
- Underlayment failure before shingle failure. On low-slope and flat sections, the underlayment bakes in the semi-arid sun and heat cycles with every Santa Ana wind event. It fails from below while the shingle still looks decent. That’s why we inspect before we quote.
- Decking rot under tree canopy. Wilshire Square and French Park are beautiful, but those ficus trees hold moisture against the deck. Shaded roof sections rot years before the sunny ones. We replace the deck, not just the shingle over it.
- Bad roof-to-roof transitions on additions. Older Santa Ana homes rarely had their additions integrated properly at the roof level. We rebuild those transitions with cricket diverters and step flashing so water can’t pool where the old lanai meets the main house.
Pricing for Roof Replacement in Santa Ana, CA
A full architectural shingle roof replacement in Santa Ana runs $9,500 to $14,500 for a typical single-story bungalow. If your home has a low-slope or flat section, multiple roof-to-roof transitions, or extensive decking rot, the range shifts to $14,500 to $18,500. Tile and Spanish Colonial Revival homes with original clay or concrete tile fall at the high end, often $16,000 to $22,000, because we preserve the original roofline and replace underlayment and battens.
What moves the price in Santa Ana more than anywhere else is what we find under the shingle. Salt air corrosion, hidden deck rot from tree canopy, and old skip sheathing are the three biggest variables. You’ll get a written line-item quote before we start, and we don’t change the number unless we find rot and show it to you.
Call (866) 321-6172 to schedule your free estimate. We’ll give you a real number, not a range that balloons later.
We Also Serve Cities Near Santa Ana
Our crews cover Roof Replacement in Santa Ana and the surrounding communities, including Tustin, North Tustin, Fountain Valley, and Orange. If you’re in one of those areas and need an honest roof assessment, the same crew and the same inspection-first approach applies. Our Roof Replacement team handles jobs across Orange County from the same Van Nuys base.
Serving Santa Ana, CA — Our Local Coverage Area
We’re based in the Santa Ana 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 Santa Ana
They don’t fail faster because of rain or storms. They fail because of salt air corrosion on fasteners and flashing, heat cycling that bakes underlayment on low-slope sections, and mature ficus and jacaranda canopies that hold moisture against the decking. Those three factors hit Santa Ana’s pre-1960 housing stock harder than anything the weather does. We address all three in the materials we specify, not just the shingle we install. Call (866) 321-6172 and we’ll show you what’s actually happening on your roof.
We recommend preserving the original low-profile silhouette with clay or concrete tile where the structure allows, or a high-quality architectural shingle with a starter strip and ridge vent where weight or budget precludes tile. For homes in Wilshire Square and French Park, we also specify a marine-grade drip edge and stainless steel fasteners to resist the salt air that drifts in from the coast. We don’t push one brand; we’ll show you GAF, CertainTeed, and Owens Corning options and let you choose.
Salt air adds roughly 8 to 15 percent to a Santa Ana roof replacement compared to an inland Orange County job, because we specify stainless steel ring-shank nails, marine-grade drip edge, and corrosion-resistant flashing instead of standard galvanized hardware. The cheaper inland-spec version rusts within a decade, wind-lifts at the edges, and costs more in the long run. We’d rather quote the right spec up front than warranty a failure later. Estimates are free, call us at (866) 321-6172.
Yes. We work around mature ficus and jacaranda canopies in Santa Ana without removing or heavily pruning the tree. Our crews protect the branches, tarp the ground, and schedule decking work so sunny sections cure before the canopy shades them. We also recommend a trim back of branches within three feet of the roof surface, done by a licensed arborist, to reduce the moisture that caused the rot in the first place. You keep the tree, we replace the roof.
We rebuild them properly with cricket diverters, step flashing, and sealed valleys so water can’t pool where the old lanai or converted patio meets the main house. These transitions are the most common leak point on Santa Ana’s pre-1960 homes, and the original work was often done with nothing more than mastic and hope. We’ll show you photos of what we open up before we close it. Call (866) 321-6172 for an exact quote, estimates are free.
Written by Rick Dominguez, Owner at Van Nuys Roofing Co, serving Santa Ana and Orange County since day one.