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 Walnut
Roof replacement in Walnut, CA typically starts with a problem that isn’t what it looks like from the street. Your barrel tile might look perfect from the curb while the 1990s felt underneath is baked out and leaking at the flashing. Most Walnut homes were built during the big hillside development push of the 1980s through early 2000s, and those original underlayments are now 25 to 35 years old. That’s the roof we’re usually called to replace. If you’re seeing attic moisture, water staining at a valley, or granules in the gutter from an aging shingle section, call (833) 467-4901 for a free inspection first. We cover all of Walnut, from the tracts off Lemon Avenue to the 91789 hillsides near the equestrian zones.
Why Huntington Beach Roofers Is Walnut’s Preferred Roof Replacement Company
Strong local reputation in Walnut comes from doing the inspection before the recommendation. Homeowners here don’t want a sales pitch, they want a roofer who can tell them whether the tile stays, whether the deck underneath needs work, and what the permit will trigger once walls are open. That’s the conversation we have on nearly every Walnut estimate. Reviews from Walnut customers point to the same thing: we showed up, we documented what we found, and we priced the real scope in writing before any work began.
Response time to Walnut is straightforward for us. We’re headquartered in Huntington Beach and route crews to the San Gabriel Valley on a regular rotation, so we don’t treat Walnut like a distant outpost. We know the streets off Nogales and Grand, and we know what a two-story Mediterranean-tile home in the hillside tracts actually requires when the original roof is opened up. Single point of contact from the first inspection to the final shingle.
Seven brands. One contractor. GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. That matters in Walnut because a hillside tile re-roof and a flat roof on a 91788 addition don’t call for the same material or the same installer approach. We’re authorized across the board, so the recommendation follows the roof’s needs and your budget, not our inventory.
Styles & brands we work with
New Roof Installation in Walnut
New roof installation in Walnut is typically for additions, detached structures, or a tear-off scenario where the existing roof is beyond salvage and the homeowner wants to start clean. A full replacement on a 2,800 to 3,500 square foot Walnut home runs $18,000 to $34,000 depending on what’s underneath and what the permit triggers. On a new construction or addition job, the range runs $7 to $14 per square foot of roof area for materials and labor. We inspect first, recommend second.
New Construction and Additions
Walnut’s hillside lots mean a new roof often goes on a structure with specific grading and drainage conditions. Soffit, gutter, and drip edge details matter more than the shingle or tile choice on these jobs. We handle new construction roofing from the sheathing up, and we coordinate with your framing and electrical contractors so the roof envelope is sealed correctly the first time.
Full Replacement on Asphalt and Architectural Shingles
Not every Walnut home has tile. Some of the 91795 planned subdivisions have architectural shingle roofs now 20-plus years old. When the shingle layer has failed, a full replacement in Walnut runs $12,000 to $22,000 for a standard two-story home, depending on whether the deck is clean. We carry Atlas and Tamko shingle lines plus GAF premium systems for this work.
Reroofing in Walnut
Reroofing in Walnut is the specialty call, and it’s usually not what the homeowner thinks. The barrel tile almost never fails first. The original 1990s felt underlayment behind it does. So a true reroof here means lifting and re-setting thousands of intact clay tiles over new underlayment rather than a tear-off and dump. Because the tile is reusable, the real cost driver is the hidden deck and code work underneath, not the roof covering itself. A typical Walnut reroof over existing tile runs $14,000 to $28,000 depending on how much deck and flashing repair the opening exposes.
Tile Lift and Re-Set
We lift the tile, strip the old felt, install new underlayment, and re-set your original tile. This is the classic Walnut job. The finished roof looks unchanged from the street, but the waterproofing underneath is brand new and code-compliant for today’s Walnut permitting standards.
Underlayment and Flashings
Valleys, hips, pipe boots, and wall flashings are where a baked-out Walnut underlayment leaks first. During the reroof we replace all of it to current code and add ice and water shield at the eaves where Walnut’s rare winter rainstorms drive water under the tile profile.
Trusted Brands We Service in Walnut
We install Atlas and Tamko shingle lines for budget-minded Walnut replacements where the roof profile calls for shingle rather than tile. GAF and CertainTeed cover the premium warranted systems on hillside and WUI-adjacent homes. Boral is our go-to when a Walnut homeowner wants a concrete tile replacement that matches the existing profile exactly. For Walnut jobs, we know which supply houses stock what, and we quote lead times accurately so you’re not waiting on a backordered skid from the wrong warehouse. Match the material to the roof, not the other way around.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in Walnut Homes
- Intact tile over failed underlayment. The tile still looks great from the street, but the 1990s felt behind it is baked out and leaking at the flashings. We lift and re-set the tile over new underlayment. The real work is invisible from the curb.
- Santa Ana wind damage to tile edges and valleys. Hot, dry Santa Ana winds crack and lift clay tile along the ridges and valley lines, then the rare winter rain gets under the roof. Structural damage hides under a surface that looks mostly fine.
- Concealed deck and framing problems. Once a permit is pulled and the deck is opened on these two-story 1980s – 2000s tract homes, we often find undersized framing or water-damaged sheathing that must be repaired to pass inspection. That’s the scope that moves a quote.
- Wildfire ember exposure on the hillside edges. Walnut’s hillside tracts sit in WUI-adjacent zones where Class A fire-rated assembly requirements apply. We build the replacement roof to meet that standard, including ember-resistant underlayment details.
Pricing for Roof Replacement in Walnut, CA
A full roof replacement in Walnut typically runs $14,000 to $34,000 depending on the roof type, deck condition, and what the permit exposes. Asphalt shingle replacement lands $12,000 to $22,000. Tile lift and re-set reroofing runs $14,000 to $28,000. New construction or addition roofing runs $7 to $14 per square foot. The biggest cost variable in Walnut is what’s underneath the tile or shingles: if the deck is cracked, framing needs reinforcement, or the wiring needs updating to pass inspection, those costs are written into an allowance and priced in writing before we touch the wood. Free estimates. Call (833) 467-4901 for an exact quote on your Walnut home.
We Also Serve Cities Near Walnut
Our crews cover Walnut and the surrounding San Gabriel Valley communities. You’ll find us roofing homes in South San Jose Hills, Rowland Heights, West Covina, and Pomona as well. If you’re in one of those areas, the same seven-brand lineup and the same inspection-first process applies. Our Roof Replacement team serves the whole region, and Roof Replacement in Walnut has the same process whether you’re off Nogales or closer to Diamond Bar.
Serving Walnut, CA — Our Local Coverage Area
We’re based in the Walnut 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 Walnut
No. On most Walnut tile roofs, we lift and re-set the existing tile over new underlayment. The clay or concrete tile often has decades of life left. What fails is the original 1990s felt behind it. We lift the tile, strip the old felt, install new underlayment, and put your tile back. You keep the look, lose the leak. Call (833) 467-4901 for an inspection that tells you whether your tile is reusable.
Because Walnut’s two-story tract homes from the 1980s and 1990s often hide water-damaged decking, undersized framing, or outdated wiring once the roof is opened. A permit triggers code upgrades on anything we touch. We handle this two ways: we inspect first and look for visible clues, and we write an allowance into the contract for concealed work. Any surprise is priced and approved in writing before work proceeds. No change orders without your sign-off.
You’re describing the classic Walnut roof failure. The tile looks perfect from the street, but the 1990s underlayment behind it has baked out past its 20 to 25 year life. Moisture gets through at the flashings, valleys, and penetrations even though the tile itself doesn’t leak through. The fix is a lift and re-set with new underlayment. The finished roof looks unchanged, but the waterproofing layer underneath is new.
Yes, on the hillside edges and WUI-adjacent tracts, Walnut enforces Class A fire-rated assembly requirements. That affects underlayment choice, valley metal, and eaves details. We build fire-rated assemblies as standard on Walnut hillside homes, including ember-resistant details at the eaves and gable ends. The tile is rarely the issue; the underlayment and edge detailing are what determine the assembly rating.
Compare the underlayment spec, the allowance language, and the permit scope, not just the bottom number. A low bid that assumes the deck is clean will change once the roof is opened. A higher bid with a written allowance for concealed framing and wiring is more honest about the true Walnut cost. Ask each bidder whether the tile gets lifted and re-set or torn off, and whether Class A fire-rated assembly is included. Then call (833) 467-4901 for a free inspection and line-item quote from us.
Written by Neil Stratton, Owner at Huntington Beach Roofers, serving Walnut and the San Gabriel Valley since 2004.