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 Alhambra
Roof replacement in Alhambra usually costs between $14,000 and $28,000 for a typical 1,500-square-foot home, depending on whether you’re lifting and re-laying original clay tile or tearing off old composition shingles. We work throughout 91804, 91841, 91896, and 91899, and our crews know the difference between a 1928 Spanish Colonial on North Main and a 1960s ranch near Emery Park. If you’re looking at a roof that’s failed or nearing the end of its service life, call (866) 217-3967 and we’ll put eyes on it, tell you what’s actually there, and give you a written number before you spend a dollar.
Why Moreno Valley Roof Repair Is Alhambra’s Preferred Roof Replacement Company
Most Alhambra roofing jobs aren’t simple tear-offs. The homes in the historic blocks north of Main Street and around Almansor Park carry clay barrel tile installed when Coolidge was in office. Ruben Ibarra built our company around the idea that you shouldn’t have to choose between a roofer who only knows one brand and a roofer who wants to sell you a full tear-off when a tile-lift-and-relay would do. We’re authorized installers for GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. That’s seven manufacturers, which matters when you’re deciding between a premium standing seam upgrade and a mid-range Atlas shingle that matches your 1940s bungalow’s sightlines.
Our crews have spent enough time on Alhambra roofs to know what they’ll find before the first tile comes off. Skip-sheathing. Cracked battens. Underlayment that’s turned to dust while the tile on top still looks showroom-clean from the street. We quote for that reality, not for a best-case scenario. When a surprise does show up once the roof is opened, you get a line-item change order with a price and a signature line before we touch it. The number doesn’t move without your approval.
Styles & brands we work with
Flat Roof Replacement in Alhambra
Flat Roof Replacement in Alhambra is a different animal from the pitched tile work most people picture when they think of this city. The postwar duplexes and apartment buildings south of Valley Boulevard, plus a lot of the 1950s ranch homes near Granada Park, carry low-slope and built-up roofs with hot-mop asphalt or old composition roll roofing. These roofs take a beating from the inland San Gabriel Valley sun, which dries out mastic and opens hairline cracks along parapet walls and drain collars. A flat roof replacement here typically runs $9,000 to $18,000 depending on square footage, decking condition, and whether we’re installing a torch-down modified bitumen system or a single-ply membrane like TPO.
Decking Assessment on Low-Slope Roofs
Before we quote a flat roof in Alhambra, we walk it. We look for soft spots around the drains, alligatoring in the asphalt, and perlite cover boards that have absorbed three decades of interior moisture. If the decking under a low-slope roof has rotted, the replacement cost climbs fast because we’re not just re-covering, we’re re-decking.
Recover vs. Tear-Off for Built-Up Roofs
Some Alhambra flat roofs still have their original 1960s hot-mop layers, and at some point a recover stops making sense. If there are two or more existing layers, code in Alhambra generally requires a full tear-off before we install new material. If there’s only one and the decking is sound, a recover can save a significant sum. We’ll tell you which path applies to your roof, and why.
Roof Installation in Alhambra
Roof Installation in Alhambra on a new build or a full re-sheath means starting from a clean deck and putting down a system that matches the house’s age and look. For new construction in the 91804 and 91841 ZIPs, that’s often an asphalt shingle roof with architectural shingles from GAF or Owens Corning, but for the older homes it’s frequently a full re-installation of original clay barrel tile over new underlayment and repaired or replaced skip-sheathing. A full new roof installation in Alhambra runs $16,000 to $32,000 for a standard single-family home. The range exists because the substrate under the old roof varies wildly from house to house, and you can’t know the decking’s true condition until the old material comes off.
Underlayment and Decking on Older Homes
The original 1920s and 1930s homes in Alhambra were built with skip-sheathing, which means the roof deck has gaps between boards rather than a solid plywood field. That worked fine for the original heavy tile, but modern code and modern underlayment expect a solid surface. We often install a plywood overlay or replace the decking entirely before laying new material, and that’s a cost you should know about before signing.
Flashing and Valley Detail Work
Leaks in Alhambra’s older roofs usually start at the details: the valleys, the chimneys, the parapet caps, the soil stacks. On a roof installation we replace all of it. New step flashing, new counter-flashing, new valley metal. The tile or shingle field can be flawless, but if the flashings are old, the roof will leak within the first atmospheric-river storm.
Trusted Brands We Service in Alhambra
We’re not married to any single manufacturer. That’s why we carry accounts with GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral, and why we can talk honestly about the difference between a GAF Timberline and an Owens Corning Duration. For Alhambra’s older Spanish Colonial stock, we often recommend Atlas or Tamko products when a homeowner wants a quality shingle at a mid-range price, and Boral when they want a modern alternative to original clay tile. The right material for your roof isn’t the most expensive one. It’s the one matched to the heat, the occasional heavy winter rain, and the look of your house. We stock warranty-backed parts and materials for fast turnaround, and we’ll show you the physical samples before you commit.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in Alhambra Homes
- Original 1920s underlayment that’s become dust. The clay barrel tile on Alhambra’s Spanish Colonial Revival homes can look perfect from the curb while the felt underneath has disintegrated. The first atmospheric-river storm of winter exposes it. We lift and inspect before we ever recommend replacing the tile itself.
- Skip-sheathing cracked under decades of weight. The original roofs on the north-of-Main and Main Street historic blocks were built with spaced boards, not solid plywood. Modern underlayment systems need a solid deck, so we repair or overlay the sheathing as part of a proper replacement.
- Hot inland sun micro-cracking clay tile. Alhambra’s temperatures run hotter than coastal LA, and years of direct San Gabriel Valley sun bakes the glaze off tile and opens hairline cracks. Those cracks don’t leak immediately, but they let moisture into the underlayment and the decking, which degrades silently.
- Old mastic and flashing failure on flat roofs. The low-slope roofs on Alhambra’s postwar duplexes and ranch homes have flashings that baked in the sun for fifty or sixty years. They dry out, separate from the parapet, and let water run straight down the interior walls.
Pricing for Roof Replacement in Alhambra, CA
A composition shingle tear-off and replacement on a standard Alhambra ranch home runs $13,500 to $19,000. A clay tile lift-and-relay restoration on a 1920s Spanish Colonial typically lands between $18,000 and $28,000, with the final number driven by how much of the original tile we can salvage and how much decking needs repair. Flat roof replacement in Alhambra runs $9,000 to $18,000 depending on size and system. The single biggest variable when we open up an older Alhambra home is the decking: original skip-sheathing often needs a plywood overlay before we can lay new underlayment. We write decking repair allowances into every contract, and any change order gets priced and approved in writing before we proceed. Call (866) 217-3967 for a free written estimate specific to your roof.
We Also Serve Cities Near Alhambra
Our Roof Replacement crews cover the surrounding San Gabriel Valley communities, including East San Gabriel, San Gabriel, South Pasadena, and San Marino. If you’re located in any of those cities, or elsewhere near Alhambra, call us at (866) 217-3967 and we’ll schedule an inspection.
Serving Alhambra, CA — Our Local Coverage Area
We’re based in the Alhambra 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 Alhambra
We write a decking repair allowance into every Alhambra roof replacement contract based on what we find during the inspection. If we open the roof and the skip-sheathing or plywood is worse than expected, we document it, price it, and get your signature on a change order before any additional work begins. The original 1920s and 1930s homes in this city rarely give up their roofs without some decking surprises, so we plan for that from day one.
Yes, and that’s exactly what we do on most of Alhambra’s older Spanish Colonial and Mediterranean homes. We lift and stack the original tile, catalog it by section, repair or replace the decking and underlayment, then re-lay the salvaged tile with new flashing. On a 1928 Spanish Colonial on North Main Street, our crew did exactly that after finding the felt underlayment had turned to dust and the skip-sheathing was cracked in three valleys. We replaced the damaged decking, installed ice and water shield in the valleys, laid new underlayment, and put the original tile back in place. The house kept its character, and the homeowner avoided paying for a full tile replacement.
We install a high-temperature rated synthetic underlayment on most Alhambra roof replacements, with ice and water shield in the valleys and along the eaves. This city’s roofs sit under intense inland sun for eight months of the year, and standard felt underlayment degrades faster than it would on the coast. The synthetic product holds up to UV exposure during installation and gives us a much longer service life once the tile or shingles are back on. Call (866) 217-3967 if you want to see the material before we install it.
A roof replacement in Alhambra kicks off a city permit and inspection process, and once the underlayment is opened, the inspector can flag code upgrades that weren’t visible before. The most common one on older homes is decking: if the original skip-sheathing doesn’t meet current nailing or spacing standards, we have to repair or overlay it before the roof can be closed. We pull the permit, schedule the inspection, and build the allowance for code-required upgrades into your contract up front, so the final number doesn’t shift without a written explanation and your approval.
Roofing is measured in squares, where one square equals 100 square feet of roof surface. We measure the actual plane of each roof section, including the pitch, not the footprint of the house. A 1,500-square-foot Alhambra home with a steeply pitched hip roof might have 22 or 24 squares of actual roof surface. The per-square rate we quote includes labor, materials, underlayment, flashing, and tear-off disposal, and we give you the square count in writing so you can verify the math. For an exact square count on your roof, call (866) 217-3967 and we’ll do the measurements ourselves.
Written by Ruben Ibarra, Owner at Moreno Valley Roof Repair, serving Alhambra and the surrounding San Gabriel Valley.