Westminster 92683Commercial Flat Roof Replacement in Westminster 92683View project Commercial Roof Replacement in Los Angeles & Orange County
A new roof without closing your doors.
Commercial roof replacement in phases, so your doors stay open. Section by section, the worn roof comes off and a new low-slope system chosen for your building goes on. It starts with a roofer-led survey that shows whether replacement is due now or can wait, across Los Angeles and Orange County.
- Los Angeles commercial roofing contractor · CSLB #1061942
- Serving LA, Orange County & Southern California
- Roofer-led roof survey
- Written scope and price before any work
Replaced one section at a time, while the building stays open.
Certified with the manufacturers we install
280 Google reviews
Accredited, A+ rating
Find us on Yelp
Commercial roof replacement
A new roof should rest on photos and facts, not a pitch.
Leaks in new places every rainy season, seams opening across the field, surfacing worn thin by the sun and soft spots underfoot are signs that commercial roof repair in Los Angeles has run its course. As commercial roofers serving Los Angeles and Orange County, we start with a roofer-led survey that shows whether replacement is due now, belongs in next year’s budget or can wait.
How we work
How we replace a commercial roof
Survey the whole roof first.
A roofer walks the entire roof, photographs it area by area and notes how water drains, where equipment sits and how the roof has held up.
- Seams, surfacing and past patches
- Soft or wet areas underfoot
- Drains, curbs and parapet details
A system matched to the building.
Drainage, rooftop equipment and foot traffic shape what we recommend, from modified bitumen and other low-slope systems to TPO roofing, for commercial roof installation in Los Angeles, CA. The scope, price and phasing plan are in writing before work starts.
Section by section, so your doors stay open.
Whether your commercial roof is replaced in Los Angeles or elsewhere in Southern California, our crews, from a local Los Angeles roofing company, take one section at a time down to the deck, photograph the deck while it’s exposed and install the new system with new flashings at curbs, drains and edges before moving on. Staging, hoisting and debris removal are planned around your hours, deliveries, entrances and customer paths.
A clean site and closeout photos.
Tarps protect landscaping and nail sweeps keep walkways and parking clear. When the last section is done, we walk the roof with your team, hand over closeout photos and go over our 10-year workmanship warranty (call for details).
Commercial roofing company in Los Angeles
QRS is a Los Angeles commercial roofing company with 280 Google reviews from the people we roof for. Our commercial roofing contractors handle replacement, installation and commercial roofing repair in Los Angeles, CA, from small retail buildings to warehouses and other large flat roofs, with roof maintenance once the work is done. If you’re comparing commercial roofers in Los Angeles, start with a roofer-led roof survey and a written price, then read how to choose a commercial roofing contractor in Los Angeles.
Featured projects
Commercial roof replacement on real roofs
See all projectsWestminster 92683Commercial Flat Roof Replacement in Westminster 92683View project Client stories
What people in Los Angeles say after the __job__
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 replacement near you
QRS offers commercial roof replacement 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 replacement questions, answered
Straight answers about commercial roof replacement.
Do you do commercial roof repair in Los Angeles?
Yes. Commercial roof repair in Los Angeles and Orange County makes sense when the problems are local: a leak at a curb or drain, an open seam, storm damage to one area, on a roof that is otherwise sound. When leaks keep moving, large areas are worn or soft, or repair bills keep adding up, replacement is usually the better use of the budget. The roof survey photos show which one your building needs.
How do I choose a commercial roofing contractor in Los Angeles?
Check the contractor’s California license, ask who will survey the roof (a roofer or a salesperson), expect a written scope and price that names the roof system, and ask how the work will be phased around your tenants and customers. Our article on how to choose a commercial roofing contractor in Los Angeles walks through each question, and our credentials page shows our license.
Do you pull the permits?
Yes. When the project needs a building permit, we pull it for you.
How do we know it’s time to replace and not repair again?
Look at the pattern rather than the latest leak. If repair bills keep adding up, leaks appear in new places each season, or large areas of the roof are worn, soft or holding water, replacement is usually the sounder investment. Our survey photos show which situation you’re in.
Which roof system will you recommend?
That depends on your building. We install modified bitumen and other low-slope systems, and we weigh drainage, rooftop equipment, foot traffic and the structure underneath before recommending one. Your written scope names the system and explains why it fits.
Will tenants and customers be affected during the replacement?
Your building stays open during the work. We phase the replacement by roof section and settle noise, access, staging and delivery times with you in advance, so you can give tenants and staff dates for each phase.
Can a large roof be replaced in stages?
Yes. Big roofs are divided into sections and replaced in a planned order, and phases can be spread across budget cycles when that fits your plans. Our warehouse roofing page shows how we approach long, flat spans.
How do we look after the new roof?
Keep drains clear and have the roof checked on a schedule, especially ahead of the rainy season and after other trades work up there. Our commercial roof maintenance service handles both, with a photo report after each visit.
What happens if rain comes in the middle of a commercial reroof?
We replace a commercial roof in sections, so only part of it is open at a time, and when rain is forecast that section is protected with temporary cover when needed. Work continues once it is dry, and the schedule shifts with it; you or your site contact hear about any change.
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 replacement
Tell us about the building. A roofer, not a salesperson, walks the roof and gives you a clear next step on commercial roof replacement, with a written scope and price.
- CSLB licensed, bonded & insured
- 10-year workmanship warranty (call for details)
- Google customer reviews
