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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Replacement Across Altadena
Most full roof replacements in Altadena run between $14,000 and $28,000, depending on square footage, tear-off layers, and structural fixes uncovered along the way. That number moves when we find what’s hiding under an older home’s shingles, and in this town, there’s usually something. Call (626) 389-1956 and we’ll walk you through exactly what your roof will cost in writing before any work starts.
We know Altadena’s housing stock because we work on it every week. The low-slung ranches along Lake Avenue, the Craftsman bungalows up toward Christmas Tree Lane, the mid-century homes near Farnsworth Park. Each one has its own history under the shingles, and we plan for what that history reveals before we ever set foot on the ladder.
Why Crestview Roofing Co Pasadena Is Altadena’s Preferred Roof Replacement Company
Since 2000, Crestview Roofing has built its reputation on something most roofing companies avoid at all costs: putting everything in writing before the job starts. Our crews serving Altadena work under the Roof Replacement standard set by The Relay Visibility Guarantee. You get a written price first, photo documentation before and after, and a live trackable arrival time so you’re not sitting around wondering when the crew shows up.
Dylan Pace leads our team, and he’s direct about what a roof costs and why. When an Altadena homeowner asks about a re-roof, the conversation starts with what’s on the roof now, what’s under it, and what the local code will require once we start pulling layers. There’s no vague “we’ll see when we get there” number. There’s a written estimate with line items and a fixed price, so the number on the page is the number on the invoice.
Our Altadena customers consistently point to the same things in reviews: the crew showed up when promised, the price didn’t shift, and they could see photos of the work they were being billed for. That’s not a gimmick. That’s The Relay Standard, and it’s been our operating model since day one.
Styles & brands we work with





Roof Replacement Contractor in Altadena
Finding the right Roof Replacement Contractor in Altadena means finding someone who understands what a 1950s ranch or a 1920s Craftsman actually needs, not just someone who can nail down shingles quickly. Most homes here built between 1920 and 1970 have framing that predates modern wind and fire codes, which means a proper replacement often involves more than new shingles. Low-pitch and flat roofs common to mid-century styles need specific membrane systems, while steep Craftsman gables require careful flashing work around dormers and chimneys.
Tear-Off and Structural Evaluation
Before we quote a replacement, we inspect what’s under the visible layer. In Altadena, that frequently means finding original cedar shake under one or two layers of composition shingle. We document precisely what’s there and include a written allowance for decking replacement, rafter repair, or termite remediation, so the number you approve is the number you pay. If the tear-off exposes something structural, we stop, photograph it, and get your written approval for the added scope before touching it.
Code-Triggered Upgrades
Pulling a permit for a re-roof in Altadena can trigger requirements that surprise homeowners. Older homes often need ember-resistant venting, upgraded starter strips, and additional fasteners to meet current wind ratings. We factor those into the initial quote whenever they’re foreseeable, and we explain every code item in plain English before work begins. You’ll never see a change order for something we could have told you about on day one.
Asphalt Shingle Roof Replacement in Altadena
An Asphalt Shingle Roof Replacement in Altadena typically runs $12,000 to $22,000 for a standard single-story home, including tear-off and haul-away. Architectural shingles add a few thousand over three-tab but last significantly longer and hold up better to the intense sun that hits the San Gabriel foothills every summer. We install architectural systems from GAF, CertainTeed, and Owens Corning because these products carry manufacturer wind ratings that matter when Santa Ana winds gust through the canyons.
Wind-Rated Installation
Santa Ana events in Altadena don’t just bring fire risk. They push 60-plus mph gusts against exposed roof faces, and a shingle that lifts at the edge can peel an entire roof plane in an hour. Our nail pattern and starter strip installation exceed standard specs specifically because we know what those winds do to roofs along the foothill streets. Cupping and lifting shingles are the most common failure mode we repair on homes that were roofed by crews who didn’t account for local wind exposure.
Fire-Rated Systems for the Foothills
Wildfire ember cast from the adjacent San Gabriels is a recurring threat during dry, windy conditions. Embers don’t need a blazing fire next door to destroy a roof. They travel a mile or more and land in gutters, ridge vents, and shingle gaps. A Class A fire-rated asphalt shingle system with ember-resistant ridge vents and sealed valleys is the single best thing an Altadena homeowner can do for long-term protection. We make that recommendation standard on every quote, not as an upsell but as a baseline.
Trusted Brands We Service in Altadena
We install and warrant GAF, CertainTeed, and Owens Corning systems, and we know the manufacturer specs for each by heart. When you choose a GAF Timberline HDZ or a CertainTeed Landmark architectural shingle, you’re getting a product with real wind and fire ratings that we can stand behind with our 365-Day Done Right Promise. We keep a steady inventory of these branded materials for Altadena jobs, which means fewer delays when a tear-off reveals more decking replacement than expected. If you want Timberline HDZ in the color that matches your mid-century aesthetic, we can have it staged on your street within days, not weeks.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in Altadena Homes
- Hidden cedar shake layers. Homes in the Christmas Tree Lane corridor and nearby streets often have original 1920s cedar shake hiding under one or two composition shingle layers. Tear-off takes longer, costs more, and often reveals decking that needs full replacement before any new system goes down.
- Dry rot at valleys and penetrations. Decades of winter rains seep into failed waterproofing around chimneys, skylights, and valley flashing before anyone sees a stain on the ceiling. By tear-off time, the decking underneath is often spongy and unsafe to nail into.
- Santa Ana wind damage. Shingles that lifted during a wind event may look fine from the ground but have broken the seal strip underneath. Once lift starts, the next gust peels whole courses, and the roof is compromised before you know it.
- Undersized framing for modern loads. Many 1940s and 1950s Altadena homes were framed for lightweight wood shake or thin composition shingle. Adding modern architectural shingles, underlayment, and solar-ready blocking often requires rafter reinforcement that a generic roofing quote won’t include.
Pricing for Roof Replacement in Altadena, CA
Plan on the following ranges for a typical Altadena single-family home: basic three-tab tear-off and replacement runs $12,000 to $18,000 depending on square footage and roof pitch. Architectural shingle systems from GAF or CertainTeed typically land between $15,000 and $24,000. Flat or low-pitch mid-century roofs that require a membrane system run $16,000 to $28,000. Full decking replacement adds $2,000 to $5,000 if the tear-off reveals widespread dry rot, and structural rafter repair or termite remediation adds from $1,500 to $8,000 depending on the extent. We give you a written estimate with every line item priced before the first shingle comes off, and our quotes include a written allowance for the unknowns that older Altadena homes frequently hide. Call (626) 389-1956 for a free, no-pressure estimate with actual numbers, not ranges pulled from a national average chart.
We Also Serve Cities Near Altadena
Crestview Roofing runs crews throughout the San Gabriel foothills. Beyond Roof Replacement in Altadena, we regularly handle full roof replacements in Pasadena, San Marino, Arcadia, and Monrovia. If you’re in a neighboring community and need a roof that holds up to the same sun, wind, and ember exposure, call us for the same written-price process.
Serving Altadena, CA - Our Local Coverage Area
We’re based in the Altadena 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 Altadena
The two most common finds are dry rot in the decking and termite or water damage in the rafters, especially on homes with cedar shake origins. We also regularly uncover original 1920s shake layers that no one knew were there, which require more extensive tear-off and decking replacement. Our contracts include a written allowance for these conditions so a surprise find doesn’t become a surprise bill. Call (626) 389-1956 and we’ll explain exactly what your home is likely to reveal given its age and style.
Ember-resistant ridge and off-ridge vents add roughly $400 to $900 to a typical replacement, and a Class A fire-rated system is now standard for most quality shingle products from GAF, CertainTeed, and Owens Corning at no meaningful premium. The bigger cost driver is installing metal flashing at valleys and penetrations to fully seal the system. In Altadena, we treat these as baseline requirements, not upsells. If a quote doesn’t include ember-resistant venting, it’s a quote that ignores where you live. Call (626) 389-1956 for a quote that includes fire-rated venting as standard.
Yes, but true wood shake will not meet current fire code for the foothill interface zones in and around Altadena. The practical solution is a fire-rated composite shake product that replicates the look of cedar without the ember risk. We recommend products that carry a Class A fire rating and wind warranty, and we can show you photos of Altadena homes where we’ve made that exact swap. Expect composite shake to run at the upper end of the replacement range, typically $20,000 to $28,000. Call (626) 389-1956 and we’ll bring physical samples to your home so you can see and feel the difference before committing.
Three upgrades make the biggest difference: a high-tensile starter strip along every eave and rake, an upgraded nailing pattern that exceeds minimum code, and metal drip edge along the entire perimeter. We also install wind-rated ridge vents that stay sealed during gusts instead of lifting and letting embers in. Altadena’s location at the base of the San Gabriels means certain roof faces take direct, sustained wind loading, so we spec those elevations differently than the sheltered sides. Call (626) 389-1956 and we’ll explain what your specific roof orientation needs.
We remove layers one at a time, by hand, working from the ridge down and hauling material off the roof continuously so weight never pools on the framing. For a Craftsman with original cedar shake under composition shingle, the shake layer often comes off in deteriorated sections that don’t require aggressive prying. We photograph every stage of the tear-off and stop immediately if we find the decking or rafters compromised. You’ll see the photos before any new work proceeds. Call (626) 389-1956 and we’ll walk you through the tear-off protocol for your specific roof’s history.
On a mid-century ranch near the base of the San Gabriels, our crew removed three layers of old roofing to find the original 1920s cedar shake still in place, with several shakes dry-rotted and two rafters showing termite damage. After documenting the condition and getting written approval for the added scope, we reframed the affected sections, installed new CDX decking, and laid down a full GAF Timberline HDZ system with ice and water shield, drip edge, and ember-resistant ridge vent. That’s what a real roof replacement in Altadena looks like. It’s not just shingles. It’s what’s underneath, handled the right way, with you in the loop at every step.
Call (626) 389-1956 today to schedule your free roof replacement estimate in Altadena. You’ll get a written price, a clear timeline, and a plan built for your home’s actual condition, not a national average. We’re a live person on the phone 24/7, and we’ll start with an honest conversation about what your roof really needs.
Written by Dylan Pace, Owner at Crestview Roofing Co Pasadena, serving Altadena home and business owners with straightforward, documented roofing work since 2000.