Commercial Roofing

Office Building Roofing

QRS provides office building roofing across Los Angeles and Orange County, from leak repairs to full replacement, with the work planned so your tenants can keep working. Every project starts with a roof survey that traces leaks to the source, from rooftop HVAC curbs to parapets and drains, with photo-documented findings for owners and property management clients.

CSLB #1061942Licensed, bonded & insured
Google ReviewsHomes & businesses
10-YearWorkmanship warranty
Roofer-LedInspections and estimates

Overview

Office building roofing is detail work. Most office roofs are low-slope and crowded with HVAC units, exhaust fans, conduit and roof hatches, and many are ringed by parapet walls capped with coping. Each of those details is a place water can get in, and the first sign is often a stained ceiling tile in a top-floor suite. We follow the leak to its source, whether that’s a failed curb flashing, a split seam or a drain backing up, then repair or replace the flat and low-slope roofing with the right system for your building.

For commercial clients, the roof is also a planning question. Is it worth repairing, or is replacement coming? What needs attention this year, and what can wait? Our roof survey answers with photos and plain-English findings you can share with ownership or keep with your building records. When larger work is due, we build the scope and work plan around your tenants, covering roof access, noise, staging and deliveries.

Quality roofing specialist exceeded my expectations from start to finish. The crew showed up on time, explained everything clearly, and the quality of the work was outstanding. They were professional, honest, and left the property spotless when the job was done. It’s hard to find reliable contractor in LA, but these guys definitely earned my trust. I highly recommend them to anyone looking for quality roofing work. Five stars all the way!
Samuel Mcilwee2 months ago · Google
I was looking to replace my shingles roof in Encino and contacted a few roofing companies in the neighborhood. Out of four roofers, Quality Roofing Specialist was the only one that worked with my budget as well as my schedule. Their work was fantastic, and we love the outcome. They exceeded my expectations. I will definitely recommend to friends.
Jose Linareza month ago · Google
Tony was very responsive when I called. The entire process was faster than I expected. With his continuous supervision the whole project went so smoothly and professionally, the place was cleaned up completely.
I have a beautiful roof now :)
Liron Yosef3 weeks ago · Google
I was recommended this roofing company by a friend, and I’m really glad I went with them. I had a problem with water leaking into my attic from the flashing around the chimney, and the team was very helpful from the start. Tony was the roofer working with me, and he was always professional and friendly. He took care of resealing the flashing and chimney, which made the leak much better right away. He kept in touch with me after the work, and now we’re working on sealing the chimney even more to make sure everything is perfect. I feel confident that the team will get everything fixed up right. Based on my experience so far, I’d definitely give them five stars. Thanks to everyone there for their hard work!
Kelsey Breadmont4 months ago · Google
We trusted Tony for a full roof replacement. They showed up early each day, worked efficiently, and kept us updated. I appreciated the patience in answering our concerns about materials and warranty. The new roof looks sharp and already makes the home feel more energy-efficient.
Angel4 months ago · Google
We had a great experience with Quality Roofing Specialist. Tony, the project manager, was awesome to work with. He kept us updated, answered all our questions, and made sure everything went smoothly. The crew did a great job, and the final result looks amazing. I would definitely recommend Tony and the whole team
Stella Ink LAa month ago · Google
We had an awesome experience with the crew of Quality Roofing. I called around to get quotes for a roof replacement and they gave me much better quote than the other roofing companies. Definitely within the budget and did a perfect job. No mess, they cleaned everything at the end
Emilee Crowley3 months ago · Google
We recently had our roof replaced by Quality Roofing Specialists, and the entire experience was excellent. The crew arrived on time every day, kept the property clean, and finished the project exactly as promised. The quality of the workmanship is outstanding, and the new roof looks amazing. If you’re looking for a reliable roofing contractor, I highly recommend this company.
Noam Nahori2 months ago · Google
Tony went above and beyond my expectations!! He was available immediately to inspect the roof and gave a great deal. He definitely worked with our budget. I highly recommend Quality Roofing for any roof repair you may need:)
Cynthia Pina5 months ago · Google

Our Process

How an office roof project works

  1. Roof survey

    A roofer walks the roof, checks the areas your tenants have reported and photo-documents what we find.

    • Curbs and flashings at HVAC units
    • Drains, scuppers and low spots
    • Parapet walls and coping
  2. Written scope and tenant plan

    The scope and price come in writing, along with a work plan built around your tenants and the way the building runs.

    • Roof access and material hoisting
    • Noisy work and quiet hours
    • Staging areas and tenant updates
  3. Installation

    Crews work through the agreed scope area by area, keeping entrances, walkways and loading areas clear.

  4. Closeout photos and records

    We walk the finished roof with your property manager or building engineer and share photos of the completed work for your files.

  5. Ongoing roof care

    Scheduled checks keep drains clear and catch worn flashings early, with photos you can compare from one visit to the next.

Aerial view of a residential roof

Why Choose QRS for Office Building Roofing?

Property management clients juggle tenants, ownership and budgets. A roof survey gives you facts and photos to work from.

Leaks traced, not guessed at

We follow water back to where it enters instead of patching the spot above the stain, and we show you the photos.

Findings ownership can follow

Plain-English findings and clear photos make it easier to explain a repair, or a replacement budget, up the chain.

Plans that respect tenants

Access, noise and staging are worked out before the project starts, so you can tell tenants what to expect.

10-Year workmanship warranty

Our installs are backed by a 10-year workmanship warranty, and we review it with you at closeout.

Get Your Estimate →

Frequently Asked Questions

Straight answers about office building roofing.

Why does our office roof leak only in heavy rain?

Heavy rain tests drainage. A partly clogged drain or scupper, a low spot that holds water, or worn flashing at a parapet or curb can stay dry in a light shower and leak once water backs up. A roof survey pinpoints which one it is.

What does a roof survey cover on an office building?

A roofer walks the full roof and checks every HVAC curb, drain, scupper, parapet and roof hatch, along with the seams and surface in between. We photograph what we find, explain it in plain English and tell you what each area needs next.

Do you work on rooftop HVAC units?

We handle the roofing around them: curbs, flashings and penetrations. Servicing the units themselves is a job for your HVAC contractor, and we’re glad to coordinate with them when roof work touches the equipment.

Do you also roof apartment and condo buildings?

Yes. Our HOA & multi-family roofing service handles residential properties with the same survey-first approach. If you manage both office and residential buildings, we can cover the whole portfolio.

Do you serve office buildings outside Los Angeles?

Yes. We work across LA County and Orange County, from Burbank and Glendale to Irvine and Santa Ana. See our service area for every city we cover.

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Get a Straight Answer on office building roofing

Tell us about the building. A roofer, not a salesperson, walks the roof and gives you a clear next step on office building roofing, with a written scope and price.

  • CSLB licensed, bonded & insured
  • 10-year workmanship warranty
  • Google customer reviews