Service Area
Commercial Roofing Contractors in Alhambra, CA — HP Roofing Pro Headquarters
This Is Our Home — The Only HP Roofing Pro Office
HP Roofing Pro is headquartered at 601 South Palm Ave in Alhambra, California. This is our only office. Every project we take on across the state — from San Diego warehouses to Sacramento commercial buildings — is managed, dispatched, and quality-controlled from here.
We’ve been here since 2017. We’re a licensed California business (CSLB #1043546), fully insured, and we’re not going anywhere. When you work with HP Roofing Pro, you’re working with a real company at a real address with a real track record.
📞 Call 909-521-1285 for a free commercial roof assessment.
Most Commercial Roofs Can Be Repaired or Restored — Not Replaced
The roofing industry routinely pushes full tear-off replacements on property owners who don’t need them. It’s the most expensive option, causes the most disruption, and it’s often unnecessary.
We take a different approach. We assess your commercial roof honestly and recommend the most cost-effective solution — a targeted repair, a cool-roof restoration with our RainArmor system, or a full replacement when it’s genuinely warranted. We do all three. We’ll tell you which one your roof actually needs.
Commercial Roof Repair
Most flat-roof problems can be repaired without replacing the entire roof. We repair and maintain all major commercial flat-roof systems:
- TPO roofs — seam failures, punctures, UV degradation
- PVC roofs — weld repairs, shrinkage correction, flashing resealing
- Modified bitumen — blister repair, cap sheet replacement, seam reinforcement
- Built-up roofing (BUR) — the gravel-surfaced systems on older SGV commercial buildings
- EPDM and metal roofs — patching, fastener replacement, coating touch-ups
Our repair work uses the highest-grade roof mastic reinforced with polyester fabric. The patches are permanent, backed by a leak-free guarantee.
RainArmor: Cool-Roof Restoration
When a roof needs more than a repair but doesn’t warrant a full tear-off, we offer RainArmor — our proprietary seamless single-ply cool-roof system, installed directly over the existing roof.
Three engineered components:
- Waterproofing-grade asphalt base — seals and bonds to the existing substrate
- Stitch-bonded polyester reinforcement — engineered for structural integrity and puncture resistance
- Two-phase acrylic elastomeric reflective surfacing — designed to reflect solar heat, lower interior temperatures, and meet California Title-24 energy standards
No tear-off. No disposal. No exposing your building’s interior during construction. Lower cost, less downtime, and a cool-roof finish that reduces energy bills.
RainArmor vs. Full Replacement
| RainArmor Restoration | Full Tear-Off Replacement | |
|---|---|---|
| Tear-off required | No — installs over existing roof | Yes — old roof removed and disposed |
| Business disruption | Minimal — building stays protected | Significant — interior exposed |
| Energy performance | Cool-roof surfacing, Title-24 compliant | Depends on system selected |
| Tax treatment | Typically maintenance expense (single-year) | Capital expenditure (depreciated) |
| Warranty | 15-25 year leak-free options | Varies by manufacturer |
When full replacement is genuinely necessary — structural deck damage, extensive moisture saturation — we handle that too. We just won’t recommend it when you don’t need it.
Preventive Maintenance
Regular inspections and proactive maintenance extend roof lifespan by 10-15 years. We provide documented inspection reports and maintenance schedules for San Gabriel Valley property managers.
Additional Services
- Skylight Removal & Installation — replace aging commercial skylights before they leak
- Solar Panel Roofing — structural assessment and membrane prep for photovoltaic systems
Why Property Managers Choose HP Roofing Pro
- Real company, real address — 601 South Palm Ave, Alhambra CA 91803, since 2017
- Honest assessment — we tell you what your roof needs, not what generates the biggest invoice
- Full capability — repair, restore with RainArmor, or full replacement
- CSLB #1043546 — fully licensed and insured for commercial projects statewide
- Manufacturer Certified — Owens Corning Preferred Contractor, GAF CoatingsPro, Mulehide Warranty Eligible
- 15-25 year warranties — backed by documented inspection and installation standards
- Title-24 compliant — all systems meet California Building Energy Efficiency Standards
San Gabriel Valley Service Area
From our Alhambra headquarters, we serve commercial properties throughout the SGV and beyond:
San Gabriel Valley: Alhambra, Pasadena, Monterey Park, Rosemead, El Monte, South El Monte, San Gabriel, Temple City, South Pasadena, Montebello
Greater Los Angeles: Downtown LA, East LA, Vernon, Commerce, City of Industry
Extended Coverage: Inland Empire, Orange County, San Diego County, NorCal
HP Roofing Pro 601 South Palm Ave, Alhambra, CA 91803 📞 909-521-1285 · [email protected] CSLB #1043546
Frequently Asked Questions
Where is HP Roofing Pro located? +
Do I really need a full roof replacement? +
Do you repair TPO, PVC, and modified bitumen roofs? +
What is RainArmor? +
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HP Roofing Pro
601 South Palm Ave, Alhambra, CA 91803