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
Trusted Roof Replacement for Pasadena Homeowners
Roof Replacement in Pasadena typically costs between $9,500 and $22,000 for a standard single-family home, and most jobs take 3 to 5 days from tear-off to final cleanup. Those numbers shift with roofline complexity, material choice, and whether your decking needs repairs once the old shingles come off. At Birchbark Roofing Pasadena, we write your exact price down before any work begins, so there’s no guessing and no change-order surprise mid-job. Erik Lindgren leads our crew, and every project carries the 365-Day Done Right Promise: if it’s not right, we make it right. Call (626) 657-5397 for a free estimate.
Key Takeaways
- Roof replacement in Pasadena runs $9,500 – $22,000 on average, with your exact number in writing before work starts.
- Most replacements finish in 3 – 5 days, including full-site cleanup with a photo sent before the crew leaves.
- Birchbark is part of the Cedarwell family of independent roofing businesses, operating under the Cedarwell Care Promise since 2000.
- Every job includes a written price, shoe covers, drop cloths, and the 365-Day Done Right Promise.
Pasadena’s older homes – the Craftsman bungalows along Orange Grove, the Spanish revivals in Bungalow Heaven, the mid-century ranches up in the San Rafael Hills – all have rooflines that punish a careless tear-off. Steep pitches, clay tile transitions, enclosed valleys that trap leaf litter from all those old oaks. We’ve worked enough Pasadena roofs to know what’s under the shingles before we lift the first one. And we plan for it in writing. That’s the whole point of the Roof Replacement in Pasadena estimate: you see the real number, including the “what if we find rot” line item, not a blank checkbox.
Roof Installation
Roof Installation is the full replacement of your home’s roofing system – tear-off of the existing material, inspection and repair of the decking beneath, installation of underlayment and new roofing material, and complete jobsite cleanup. Homeowners in Pasadena need this when the roof has reached the end of its serviceable life, after repeated patch repairs stop making financial sense, or when a re-paper and overlay won’t pass city inspection. Birchbark Roofing Pasadena handles the entire installation from permit to final walkthrough, with asphalt shingle tear-offs and re-installs typically running $9,500 to $18,000 depending on square footage and pitch.
What Gets Replaced
We don’t just nail new shingles over old problems. The tear-off exposes the decking, and every damaged sheet of plywood or plank gets replaced before underlayment goes down.
Flashing, pipe collars, and valley metal all come out too. Reusing old flashing is the fastest way to a leak six months after the job is done.
Why It Matters in Pasadena’s Climate
Pasadena gets intense UV exposure from late spring through early fall, and sudden winter downpours that test every seam. A properly installed roof handles both without dramatic expansion and contraction failures.
We install high-quality underlayment that works with the region’s dry heat so the roof can flex without tearing. That’s a detail that separates a roof that lasts 12 years from one that lasts 25.
Styles & brands we work with
Roof Replacement Contractor
A Roof Replacement Contractor is a licensed specialist who manages the entire replacement project: permits, material ordering, tear-off, decking repair, installation, inspection, and cleanup. You need one when you’re replacing an entire roof rather than repairing isolated damage, because the job involves structural coordination with Pasadena’s building department and waste management that connects directly to city code. Birchbark Roofing Pasadena is that contractor for Pasadena homeowners, with how much Roof Replacement costs generally landing between $10,000 and $22,000 for a standard single-family home, and a written price before any shingle leaves the pallet.
Permits and Inspections
Pasadena requires permits for roof replacements, and we pull them ourselves. That means the final inspection is part of our scope, not something left for you to chase down.
The result is a roof that’s legal, insurable, and documented. Some homeowners don’t know their insurance company will check for permit records after a claim.
One Crew from Start to Finish
Your roof replacement isn’t handed off between subcontractors. The same background-checked, uniformed crew starts the tear-off and finishes the final clean-up.
You’ll know exactly who’s on your property before anyone climbs the ladder. That matters when kids are home and the dog is already nervous about the noise.
Asphalt Shingle Roof Replacement
Asphalt Shingle Roof Replacement is the most common residential roof replacement in Pasadena, using layered fiberglass-based shingles from brands like GAF, CertainTeed, and Owens Corning to create a water-shedding, wind-resistant surface. Homeowners choose this when the existing shingles show granule loss, curling edges, or bare spots, and the decking below is in good enough shape to support a full new-shingle installation. Birchbark Roofing Pasadena does asphalt shingle replacement with a full tear-off (never an illegal third layer), and pricing typically runs from $9,500 to $16,000 for most Pasadena homes, depending on roof size and architectural shingle selection.
Architectural vs. Three-Tab
Architectural shingles carry a thicker profile and longer manufacturer warranties, usually 30 to 50 years. They also hide minor decking imperfections better than three-tab, which matters on older Pasadena roofs.
Three-tab is a budget option, but we explain in writing why most Pasadena homeowners end up choosing architectural shingles when they see the installed cost difference over the roof’s lifespan.
The Pasadena Patchwork Problem
We regularly see Pasadena roofs with four or five different patch jobs from different contractors over the years – mismatched shingle colors, poor flashing transitions, and old caulk lines. Those roofs need full replacement, not another patch.
A new full asphalt shingle installation eliminates those transition points. One continuous, consistent surface instead of five repair histories.
New Roof Installation
New Roof Installation is the complete construction of a roofing system on a home – either a first-time install on new construction or a full replacement of an existing roof that has reached total failure. Pasadena homeowners need this when the roof is so deteriorated that repairs would be throwing good money after bad, or when they’re building an addition or ADU that requires new roof framing and covering. Birchbark Roofing Pasadena performs new roof installation for both existing homes and new construction, with costs that typically run $12,000 to $22,000 depending on size, pitch, and material, including the written price in advance.
The Decking Reality
New installation on an older Pasadena home often means new decking. Original 1920s and 1930s roof decks are frequently spaced too wide for modern shingles, and the plywood needs to be replaced or re-sheeted to meet code.
We include decking assessment in the written estimate, and we’ll tell you exactly what’s needed before the tear-off begins. No “we found rot” conversation mid-job with a surprise invoice.
ADUs and Additions
With Pasadena’s ADU boom, we’re doing a lot of new roof installs on detached structures. These rooflines are smaller, which means the cost per square foot is higher, but the total is usually between $8,000 and $14,000.
We coordinate the new roof install with the general contractor, or we can run it as a standalone permit if the addition is weather-tight and waiting on roof covering.
Reroofing
Reroofing is a roof replacement that goes over the existing shingle layer rather than tearing off to the decking – though in Pasadena, building code allows only one overlay over a single existing layer, and full tear-off is the standard we recommend for most homes. Homeowners consider reroofing when the old shingles are still lying flat and the decking is sound, and they want to capture a somewhat lower labor and hauling cost. Birchbark Roofing Pasadena provides honest reroofing assessments: we’ll tell you in writing whether your specific roof qualifies, and a reroof typically runs $8,500 to $15,000 versus a full tear-off replacement at $9,500 to $18,000.
When Reroofing Does Not Work
If your Pasadena roof has existing water damage, sagging decking, or shingles that have curled and buckled, a reroof will fail within a few years. Nailing new shingles over a compromised surface guarantees the same failure points recur.
We won’t quote a reroof just because it’s cheaper up front. Better to do one full replacement in 2026 than another one in 2032.
The Inspection Before the Estimate
Before we write any reroofing estimate, we inspect the attic and the decking from below and above. That’s the only way to know if a reroof is actually viable or if you’re buying a temporary roof.
Most Pasadena homes we see need full tear-off. When a reroof does work, we’ll show you why – in writing, with photos, before you sign anything.
Flat Roof Replacement
Flat Roof Replacement is the removal and replacement of a low-slope or zero-slope roofing system, typically using modified bitumen, TPO, or built-up roofing on Pasadena homes with flat-roof sections over additions, garages, or mid-century modern designs. Homeowners need this when the flat roof has ponding water, visible membrane cracking, or persistent interior leaks around penetrations – all common in Pasadena’s dry-heat and sudden-downpour cycle. Birchbark Roofing Pasadena replaces flat roofs as standalone projects or as part of a whole-home roof replacement, with flat roof work generally running $10,000 to $18,000 depending on square footage and membrane type.
Ponding and Drainage
Flat roofs fail because water sits instead of flowing. We assess existing drainage and, where necessary, install tapered insulation or crickets to give the roof positive slope so water moves to the scuppers.
In Pasadena, the winter deluges can drop an inch of rain in an afternoon. A flat roof with a half-inch pond is a flat roof that leaks by March.
Membrane Choices
TPO handles Pasadena’s UV better than older modified bitumen, and it’s what we recommend for most flat roof replacements on single-family homes. Boral offers high-quality TPO, and we install it with heat-welded seams rather than adhesive.
Modified bitumen still has a place on small roll-roof sections, and we’ll show you the cost difference in the written estimate. You decide with real numbers, not a sales pitch.
Brands We Service
We work with GAF, CertainTeed, Owens Corning, and Boral as our primary roofing material brands, and our crews are experienced with each manufacturer’s installation requirements. GAF Timberline HDZ and CertainTeed Landmark are the two architectural shingle lines we install most often on Pasadena homes, both carrying 30-to-50-year manufacturer warranties and solid wind ratings for our occasional Santa Ana gusts. For flat roof sections, we use Boral TPO or modified bitumen with heat-welded seams, a detail that nearly eliminates seam failure in Pasadena’s dry heat cycles.
Whether you already have a preferred brand from a previous roof, or you want our recommendation based on your home’s specific roofline and exposure, we’ll give you the material comparison in the written estimate. We don’t push one brand; we show you the installed cost, warranty length, and wind rating for each, and let you choose. If your home needs a Roof Replacement in East Los Angeles, same standards apply across the Cedarwell family.
See the difference
Before
After
Before
After
Before
AfterSigns You Need a Pro Right Now
- Granules in your gutters or at downspout bases. Asphalt shingles lose granules as they age, and when you start seeing piles of them after every rain, the shingles are actively failing. That granule loss exposes the asphalt to UV, which accelerates the end of the roof’s life.
- Daylight visible from the attic. If you can see light through the roof boards when you’re up in the attic, water can get through too. This is a decking or underlayment failure, not a simple shingle issue.
- Interior water stains on ceilings or upper wall corners. Stains mean water has already penetrated the roofing system and is traveling along rafters to show up somewhere visible. The actual entry point is often feet away from the stain.
- Shingles that are curling, cupping, or blowing off in sections. Curled shingles create wind uplift points, which loosens neighboring shingles, which creates more entry points for water. It compounds quickly in Pasadena’s Santa Ana wind events.
- Soft spots when you walk the roof, or sagging ridge lines. Spongy decking is structural. Walking a roof with soft spots is dangerous for you and for us, and it means the decking has taken on water and lost its structural integrity.
Any one of these means an inspection is worth it. Call (626) 657-5397 and we’ll come out, look at exactly what’s happening, and give you a written assessment with no obligation.
Our Process, Step by Step
- 1
On-site inspection and written estimate. We inspect the roof, the attic, and the existing flashing. You get a written price in dollars for the entire project, including the contingency line item for any hidden decking damage we find after tear-off. No verbal ranges, no “we’ll see.”
- 2
Scheduling and preparation planning. We coordinate a start date with you and walk through what will happen each day: what time the crew arrives, where the materials go, how the dump trailer is placed, and what hours we’ll be on the roof. If the dog needs to stay inside, we schedule the door traffic with you.
- 3
Tear-off and decking inspection. The existing roof comes off down to the decking. We inspect every sheet of plywood and every plank. Damaged boards are replaced and we show you photos of what we found before anything is covered back up.
- 4
Installation of underlayment, flashing, and roofing material. Underlayment goes down first, then all the details: valley metal, pipe collars, chimney flashing, and edge drip. The roofing material goes on top. Every layer is installed to GAF, CertainTeed, Owens Corning, or Boral specifications, not just “best practice.”
- 5
Cleanup, photo documentation, and the 365-Day walkthrough plan. All debris is cleared, nails are swept with a magnet roller, and we photograph the completed cleanup before the crew leaves. You get the written Clean-Up Confirmation. If anything isn’t right in the next 365 days, we make it right.
How Much Does Roof Replacement Cost in Pasadena?
A typical full roof replacement on a 1,800-square-foot Pasadena home runs $12,000 to $18,000 for architectural asphalt shingles with a complete tear-off. Flat roof sections add $10 to $15 per square foot depending on membrane choice. Smaller homes and simple gable rooflines can come in around $9,500, while complex Spanish-style homes with multiple valleys, original clay tile transitions, and steep pitches range from $18,000 to $25,000. Reroofing over a single existing shingle layer (where code allows it) can bring the cost down by $1,500 to $3,000, but we rarely recommend it on Pasadena homes with original decking.
What changes the price most: roof square footage, pitch (anything over 6/12 adds labor), number of roof planes and valleys, decking condition, and whether you choose architectural or three-tab shingles. The best way to avoid overpaying is to get a written line-item estimate that separates materials, labor, and contingency so you can compare apples to apples. Our free estimate includes all of that, plus the specific material brand and a timeline. We don’t charge for the estimate, and we’ll never ask for a deposit before the job starts. Call (626) 657-5397 and you’ll have a written number within a few days of the inspection.
Our Service Area Near Pasadena
Birchbark Roofing serves Pasadena and the surrounding communities including South Pasadena, Alhambra, San Gabriel, Temple City, Monterey Park, Rosemead, Sierra Madre, La Cañada Flintridge, and La Crescenta-Montrose. Our crews have also completed many Roof Replacement in Alhambra projects with the same written-price standard. We schedule inspections within a few days of your call, and most roof replacements begin within two to four weeks depending on material availability and permit processing through the city. If you’re in East San Gabriel or the hills above the Rose Bowl, same care and same written price apply, no matter the zip code.
Serving Pasadena, CA - Our Local Coverage Area
We’re based in the Pasadena area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions About Roof Replacement in Pasadena
Roof replacement is the complete removal of your existing roofing material down to the decking, followed by installation of a new underlayment, flashing, and roof covering. It differs from roof repair, which addresses isolated damage without dismantling the entire system. A roof replacement in Pasadena is the right call when the roof has reached the end of its serviceable life, or when repairs can no longer stop recurring leaks. The result is a new roof system with a new lifespan, not a patchwork of old and new materials.
Most single-family roof replacements in Pasadena take 3 to 5 working days from tear-off to final cleanup. Complex rooflines with multiple valleys or steep pitches add a day or two. Material delays from manufacturers or slow permit processing can add lead time before work begins, but the physical job itself is measured in days, not weeks. We’ll put the expected timeline in writing before we start and keep you posted if anything shifts.
Most Pasadena roof replacements cost between $9,500 and $22,000, with the average landing around $15,000. Your exact price depends on roof size, pitch, material selection, decking condition, and the number of roof penetrations. The price you see on our written estimate is the price you pay, including the contingency line for hidden decking repairs discovered after tear-off. Call (626) 657-5397 for a free, line-item estimate.
Yes, we install GAF Timberline HDZ and CertainTeed Landmark shingles regularly, along with Owens Corning and Boral products where they fit the project. We’ve installed hundreds of thousands of square feet of these brands across the San Gabriel Valley and know their installation requirements thoroughly, including Roof Replacement in San Gabriel. Your written estimate will specify the exact shingle line and color you’re paying for. If you already have a brand preference from a previous roof, we’ll quote that brand.
If your roof is actively leaking or has storm damage that’s letting water into your home, we can prioritize your job and often begin emergency tarping the same day you call. Our dispatch line is answered by a live person 24 hours a day, 7 days a week. The full replacement may still need to wait for permits and material delivery, but we can secure the roof immediately to stop further water intrusion. Call (626) 657-5397 anytime and you’ll talk to a real person.
Your new roof carries two warranties: the manufacturer’s material warranty (30 to 50 years on architectural shingles from GAF, CertainTeed, or Owens Corning) and Birchbark’s 365-Day Done Right Promise. The Done Right Promise covers workmanship: if anything about the installation isn’t right within 365 days, we return and make it right at no charge. The material warranty is registered in your name at completion, and we provide you with the registration confirmation for your records.
You don’t need to do much. We handle everything on the exterior, but inside the home we ask that you clear cars from the driveway area where the dump trailer will sit, and let us know if the dog needs to stay inside on any particular day. Our crews wear shoe covers at the door, lay drop cloths through any interior access hallways, and use a magnet roller to clear nails from the yard and walkways. We’ll send you a photo of the completed cleanup before we leave each day.
Schedule Your Roof Replacement Service in Pasadena Today
You don’t have to decide today. You just have to call. The inspection is free, the written estimate is yours to keep no matter what, and a live person answers at (626) 657-5397 around the clock. Erik Lindgren and the Birchbark crew will show up on time, protect your home while we work, and put your exact price in writing before any shingle comes off the pallet. When you’re ready to talk about your roof, we’re here.
Written by Erik Lindgren, Owner at Birchbark Roofing Pasadena, serving Pasadena and the San Gabriel Valley since 2000.