Westminster 92683Commercial Flat Roof Replacement in Westminster 92683View project Commercial Roof Repair in Los Angeles & Orange County
Stop the leak and keep your building running.
Commercial roof repair starts where the water gets in. A drain, a parapet, a seam or the flashing at rooftop equipment: we trace the leak and fix what failed. Your building stays open, and every repair gets before-and-after photos, across Los Angeles and Orange County.
- Roofer-led roof survey
- Written scope and price before any work
- Permits pulled
- CSLB #1061942
On a low-slope roof, water rarely drips where it gets in.
Certified with the manufacturers we install
280 Google reviews
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Commercial roof repair
On a low-slope roof, water rarely drips where it gets in.
It slips under a lap, travels along the deck and shows up over a different office, aisle or bay, which is why a patch above the stain so often fails. A repair is only as good as the diagnosis behind it.
How we work
How we repair a commercial roof
Start with what you know.
Where water shows up inside, when it happens and what has been patched before tell the roofer where to start looking.
- Interior stains and drip locations
- Leaks tied to heavy rain or wind
- Past repairs and patches
Trace it on the roof.
A roofer works back from the leak area, checking every detail that could feed it, from seams and laps to the flashing at rooftop units, drain bowls, scuppers and the base of parapet walls, and photographs what they find.
Fixed to match the roof, with the building open.
You get a written scope and price, plus a note on anything else worth watching. The repair ties into the existing modified bitumen or other low-slope system, and timing, access and noise are agreed with your building contact so the building stays open while we work.
One record for owners, managers and tenants.
Photos of the problem and the finished repair give everyone the same picture. If the roof is worn across the whole surface, we’ll say so plainly, and those photos become the starting point for planning a commercial roof replacement.
Where leaks start
Where commercial roofs leak
Most leaks begin at details, not in the middle of an intact membrane. Condensate from an air conditioner or a plumbing leak can look the same, so a roofer checks those too.
Featured projects
Recent roofing projects
See all projectsWestminster 92683Commercial Flat Roof Replacement in Westminster 92683View project Client stories
Roofing reviews from the people we work for
Reviews from the people we roof for, on Google.
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 · GoogleTony 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 · GoogleWe 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 · GoogleWe 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 · GoogleTony 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
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 · GoogleI 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 · GoogleWe 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 · GoogleWe 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
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Commercial roof repair near you
QRS offers commercial roof repair across Los Angeles County, Orange County, Riverside County, San Bernardino County and Santa Clara County, from our offices in West Hollywood, Woodland Hills, Vernon and San Jose. Not sure we reach you? Check your ZIP code on our service areas page, or call (310) 340-1643.
Wherever the building is, it starts the same way: a roofer walks the roof, you get photos of what we find, and a written scope and price comes before any work.
Commercial roof repair questions, answered
Straight answers about commercial roof repair.
Do your commercial roofers repair roofs across Los Angeles?
Yes. Commercial roof repair in Los Angeles and Orange County is everyday work for our commercial roofers: leaks at drains, parapets, seams and rooftop equipment on offices, retail, warehouses and industrial buildings. A roofer traces the leak, shows you photos and gives you a written scope and price before the repair.
Can you repair storm damage on a commercial roof?
Yes. When Santa Ana winds or a winter storm damage the roof or start a leak, call us: a roofer assesses and photo-documents the damage and adds temporary protection if it’s needed to limit further water damage. The permanent repair follows with a written scope and price, and our photos and scope can be shared with your insurance company. Learn more about emergency and storm-damage roof repair.
Our roof drain keeps backing up. Is that a roofing problem?
Often, yes. Debris can clog the strainer, the flashing around the drain bowl can fail, or low spots can keep water from reaching the drain at all. We check all three and repair the roofing side, and if the blockage is deeper in the drain line, we’ll tell you so a plumber can clear it.
Will you need access inside the building?
Sometimes. Seeing where water shows up inside helps us trace a leak, so we may ask to look at a ceiling or the area under a drain. Most repair work happens on the roof, and we’ll arrange any interior visit with you ahead of time.
Can you send the repair details to our owner or tenants?
Yes. Along with the written scope, you get before-and-after photos and a plain-English note on what failed and what we did. It’s easy to forward to ownership, file with your building records or share with the tenant who reported the leak.
How can we keep the next leak from happening?
Most commercial leaks start at details that wear gradually, like a drain that collects debris or sealant that dries out in the sun. Scheduled commercial roof maintenance catches those early and ends each visit with a photo report. If a repair is due, you’ll see a written price first.
Our roof was patched before and still leaks. What will you do differently?
Start where the water gets in, not where it shows up. On a commercial roof that is often a drain, a curb flashing, a seam or a penetration some distance from the wet ceiling tile. You get photos of the source and of any earlier patch that didn’t hold, and a written scope and price before any repair.
Start here
Tell us what you need.
Two minutes. A clear next step. No pressure.
Prefer to answer a few questions instead? Use the step-by-step form
Get a Straight Answer on commercial roof repair
Tell us about the building. A roofer, not a salesperson, walks the roof and gives you a clear next step on commercial roof repair, with a written scope and price.
- CSLB licensed, bonded & insured
- 10-year workmanship warranty (call for details)
- Google customer reviews
