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 Alhambra
A full roof replacement in Alhambra typically runs $9,800 to $18,500 for a standard single-story bungalow, with architectural asphalt shingles being the most common choice on the 1920s to 1950s homes that dominate the city. Call us at (855) 341-6021 for a free estimate, and we’ll send a crew that knows the difference between a straightforward reroof and a buried cedar-shake teardown. We’re not a franchise outfit flying in from outside the San Gabriel Valley. We know what happens to roofs here.
Alhambra’s housing stock is nearly all wood-frame construction from the pre-war and post-war era. That means what’s under your shingles matters as much as the shingles themselves, and we inspect before we quote. No guesswork. No surprises scoped after the contract is signed.
Why Millstone Roofing Is Alhambra’s Preferred Roof Replacement Company
Nelson Ibarra started Millstone Roofing with a simple rule: inspect first, then recommend. Every Alhambra replacement we quote is backed by written findings, not a salesman’s hunch. That matters in a city where roofs from the 1940s often hide two generations of material layered on top of each other.
We work with seven roofing material manufacturers, including GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. The right material for your roof, not the easiest one for us to stock. When we quote a roof in the neighborhoods off Valley Boulevard or up near Almansor Park, the recommendation fits the house and your budget. One crew. One company. From the first inspection to the final shingle.
Styles & brands we work with
Asphalt Shingle Roof Replacement in Alhambra
Asphalt Shingle Roof Replacement is the bread-and-butter job across Alhambra, where most homes are single-story bungalows and Spanish Colonial Revivals with uncomplicated roof lines that take shingles well. A typical asphalt shingle replacement in Alhambra runs $9,800 to $14,500. The job starts with tearing off the old layer, inspecting the decking beneath, replacing any dry-rotted sections, installing new underlayment and drip edge, then laying architectural shingles with a fastener pattern rated for wind uplift.
Decking and Fastener Repair
On older Alhambra homes, the decking is often the weak link. We routinely find skip sheathing with gaps between boards that was fine for cedar shakes eighty years ago but won’t hold a modern shingle nail pattern. We replace those runs before a single shingle goes down.
Architectural Shingle Upgrade
Most Alhambra homeowners choose architectural shingles over three-tab. The price difference is modest, around $1,000 to $2,000 on a typical bungalow, and the wind-rating matters in the Santa Ana corridor. Three-tab shingles fail at the rake and ridge first when the wind hits.
New Roof Installation in Alhambra
New Roof Installation in Alhambra covers everything from a full tear-off on an existing home to a fresh roof on a new addition or ADU. A complete new roof on an average Alhambra bungalow runs $11,500 to $18,500, depending on whether we’re working on a simple gable or a low-slope porch and garage addition that needs built-up roofing. We pull permits, pass inspections, and provide a written line-item quote before work starts.
Full Tear-Off and Replacement
When we strip to the decking, we look for what the last crew left behind. In Alhambra, that’s often a layer of 1940s cedar shakes under a single asphalt layer. We remove everything, replace rotted skip sheathing with solid decking, and lay a wind-rated assembly that won’t lift at the corners come October.
Flat and Low-Slope Sections
Many Alhambra homes have flat-roof additions over garages or rear extensions. These need a different system than the main house, typically built-up roofing or a membrane. We scope those sections separately and price them honestly. A flat section over a single-car garage runs $2,800 to $5,500 on top of the main roof.
Trusted Brands We Service in Alhambra
We stock materials from Atlas, Tamko, and GAF for Alhambra customers, along with CertainTeed, Owens Corning, IKO, and Boral. That means we aren’t locked into one manufacturer’s product line or one supplier’s lead time. When a homeowner in the 91801 ZIP asks about a specific shingle profile, we can usually source it fast because we maintain accounts with all seven brands. Our Roof Replacement team matches the product to your roof’s pitch, exposure, and the wind conditions coming through the San Gabriel Valley. No quota-driven recommendations.
Common Roof Replacement Problems We See in Alhambra Homes
- Santa Ana wind uplift at the rake and ridge. The original fastener pattern on most 1940s and 1950s Alhambra roofs was never rated for the gusts that come down through the valley. Brittle, sun-baked shingles lift first at the corners, then the whole edge run goes.
- Buried cedar shakes over skip sheathing. We see this constantly in the tight lots off Main Street and Valley Boulevard. A previous owner laid asphalt over the original shakes to save money. The shakes rot underneath, the skip sheathing dries out, and the whole assembly becomes a liability waiting for the next wind event.
- Aged flashing and valley underlayment. Alhambra’s dry summers crack old flashing sealant. Then a heavy winter rain hits and water tracks back into the low-slope porch or garage addition. By the time you see the ceiling stain, the damage is already done.
- Flat-roof ponding on garage additions. Rear extensions and garages with built-up roofs collect debris and water. The membrane degrades, joins fail, and leaks show up where the flat section meets the main roof.
See the difference
Before
After
Before
After
Before
AfterPricing for Roof Replacement in Alhambra, CA
Here’s what we quote across Alhambra. A standard asphalt shingle reroof on a one-story bungalow runs $9,800 to $14,500. A full tear-off with new decking on a larger Spanish Colonial Revival runs $13,000 to $18,500. Flat or low-slope sections over a garage run $2,800 to $5,500 separately. Buried cedar-shake removal adds $1,800 to $3,500 depending on the square footage. What moves the number: roof pitch, deck condition, whether we’re pulling a second layer, and whether the property has a flat-roof addition. Call (855) 341-6021 for a line-item estimate. We inspect first, and every recommendation comes with documented findings.
We Also Serve Cities Near Alhambra
Millstone Roofing serves Roof Replacement in Alhambra and the surrounding San Gabriel Valley communities: East San Gabriel, San Gabriel, South Pasadena, and San Marino. The same inspection-first process applies everywhere. The same crew. The same documented findings. If you’re outside Alhambra proper, call and we’ll confirm coverage.
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
Cedar shake was the standard roofing material when most Alhambra homes were built in the 1920s, 1930s, and 1940s. When shakes aged, many homeowners chose the cheapest fix: lay asphalt shingles directly on top instead of tearing off. That saves money short-term but hides the underlying skip sheathing, which is spaced for shakes and dries out under the weight of a second roof. We find this condition on a significant share of the pre-war homes we replace in Alhambra. When we do, we strip everything, replace the rotted decking, and build a properly fastened assembly. Call (855) 341-6021 for an inspection if you suspect your home still has its original shakes underneath.
Yes. Santa Ana winds push through the San Gabriel Valley at speeds that exceed what most standard three-tab shingles were designed to handle, especially on the rake and ridge edges of older Alhambra roofs. We recommend architectural shingles with a higher wind rating and a six-nail fastener pattern on all replacement work in this area. The material cost difference is modest, usually $1,000 to $2,000 on a typical bungalow. That’s cheap insurance against the wind lifting a corner run and exposing the decking. Call (855) 341-6021 and we’ll walk you through the wind-rated options for your specific roof.
Put the bids side by side and check three things: what’s being torn off, what decking work is included, and what the fastener spec is. A cheaper Alhambra bid often skips decking replacement and assumes the existing sheathing is sound. Given how many homes here have buried cedar shakes and dry-rotted skip sheathing, that assumption is frequently wrong. Also confirm the shingle brand and line, the underlayment type, and whether the bid includes drip edge and starter strip. We provide a written line-item quote so you can compare honestly. If you send us the other bid, we’ll tell you what it’s missing.
Flashing and valley underlayment fail before the shingles on most Alhambra bungalows. Hot, dry summers crack old sealant around chimneys and vent pipes. Then a heavy winter rain finds the gap and water tracks back into the low-slope porch or garage addition. Rake and ridge edges also go early because the original fastener pattern wasn’t rated for Santa Ana wind uplift. If your roof is 15 years old or more, call (855) 341-6021 for an inspection before the next rain season.
If the decking and underlayment are sound and the roof has only one layer of shingles, a targeted replacement of damaged sections is possible. But on older Alhambra homes, especially Spanish Colonial Revivals from the 1930s and 1940s, what looks like a shingle problem is usually a decking problem underneath. We inspect first and show you photos of what we find. If the sheathing is rotten or there’s a buried shake layer, a full replacement is the honest recommendation. Repair when repair is right. Replace when replacement makes sense. Call (855) 341-6021 for a free estimate and we’ll document the findings either way.
Contact Millstone Roofing for Your Alhambra Roof Replacement
If you live in Alhambra and your roof is showing its age, call (855) 341-6021 to schedule a free roof inspection. Nelson Ibarra and our crew will document what we find and give you a straight answer about whether you need a targeted repair or a full replacement. We quote line-item pricing, we pull permits, and we’re on site from the first inspection to the final shingle. No subcontractors. No high-pressure sales. Just a written assessment and a fair price.
Written by Nelson Ibarra, Owner at Millstone Roofing, serving Alhambra and the San Gabriel Valley.