Superior Commercial Roofing Services in Orange County

Our Integrity is Our Promise


Proud To Offer A 50 Year Warranty


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Proudly Family Owned Since 1984

The Top-Rated Orange County Commercial Roofers

Commercial roof contractors Orange, CA

If you own a commercial property, a roofing project can have a big impact on your business. Even a small roof leak or a few missing shingles could tarnish the image of a high-end shop or hotel. A major leak might damage inventory at a warehouse or completely shut down operations at an industrial facility. Fortunately, you can rely on Guardian Roofs to help keep your commercial roof in excellent condition.


  • Safety: Safety is the most important factor in any commercial roofing project. Our safety record is backed up by years of experience and safety protocols.
  • Quality: Guardian Roofs has completed some of the largest commercial roofing projects in Orange County. We deliver each project using our quality standards, products, and job procedures.
  • Integrity: We are a well-respected commercial roofing company because of our top-down integrity. With years of experience, our reputation is what keeps us at the forefront of the industry.

Commercial Roofing Services We Offer

From large scale to small scale projects, we strive to offer a number of commercial roofing services to keep our clients happy including:


Commercial Roof Replacement & Installation

If you’re building a new commercial facility or replacing an old commercial roof, contact Guardian Roofs for your commercial roof installation or replacement. We use only the highest quality materials and the most skilled roofers in the area. That’s why you can count on Guardian Roofs to complete your commercial roof installation or replacement in a quality, affordable, and timely manner.


Commercial Roof Repairs

Guardian Roofs also offers commercial roof repairs. No matter what and how your roof’s damage was caused, we’ll send our team out right away to resolve your issue. We are here to ensure that your building isn’t at risk of water leaks and damage.


Commercial Roof Maintenance

Another important step for taking care of your commercial roof is to conduct regular maintenance. You should be caulking the seams, replacing displaced flashing, and fixing any other issues that you run across. If you don’t have time for that, Guardian Roofs can help! With over 36 years of experience, you can trust that we’ll do the job right.


Commercial Roof Inspections

Just like cars and houses, your roof should also be inspected from time to time. Chances are that you don’t have time to conduct commercial roof estimates on your own. You may also not know exactly what to look for! At Guardian Roofs, we know the ins and outs of commercial roofs and know exactly what to look out for to keep your roof happy and healthy.

Commercial roof contractors Orange, CA

The Types of Commercial Roofs We Install


Built-Up Roofs (BUR)

Most flat roofs you see are built-up roofs (BUR).This low-maintenance roof is commonly referred to as “tar and gravel” roofs because they are installed using layers of asphalt or tar right on top of the roof. When properly installed, your BUR roof can last up to 40 years.


Modified Bitumen Roof

Modified bitumen roofs can be installed with a torch-down or cold adhesive system. This is a great alternative when your commercial property requires low VOC (volatile organic compounds). Let’s just say that modified bitumen is less smelly than asphalt heated to 425ºF — which is required for built-up roof installations.


TPO Roofs

TPO Roofs are a single-ply roofing membrane of thermoplastic polyolefin. One of the greener single-ply roof materials out there, it is quite popular for flat or almost flat roofs. These roofs stay flexible in many climates and are great for lowering your energy bills.


PVC Roofs

Polyvinyl chloride, or PVC, is another single-ply roofing option that has long been used on flat roofs. It is durable, fire resistant, and environmentally friendly. Its strength and durability means it can last over 20 years when well-maintained.


Flat Roofs

You may have noticed that many commercial buildings have flat or low-slope roofs. That’s because these are affordable to install, repair, and maintain. Another advantage of flat roofing is that it creates a versatile space that can be used as a secondary space. However, flat roofs generally require more care for efficient draining. Our experts can help make sure your flat roof is properly installed AND maintained!


Roof Coatings

Roof coatings are essential for prolonging the life of your roof. In fact, this may be a great solution if your roof needs a bit of TLC, but is not quite ready for a full-on replacement. We’ll be happy to go over the best options to coat your roof so that it can serve you just a little bit longer.

Recently Completed Commercial Projects

Take a look at some of our recent work that we’ve completed on nearby Orange County businesses and multifamily properties.

Commercial Projects We Work On

From commercial buildings to multifamily apartment complexes, we provide commercial services to a wide variety of clients. This includes:

Contact Us for Your Free Project Estimate

At Guardian Roofs, we understand the special needs of commercial clients. We work on all kinds of commercial roof systems, including built-up roofs, modified roof systems, and single-ply roof systems. Our roofers are true experts in all the different materials we offer. You can rely on us to get the job done right the first time! We always present a professional appearance when working on your property and never leave a mess behind for your staff to clean up. When you need your roofing project done on time, on budget, and to a high-quality standard, we’re here for you! Call Orange County’s leading roofing company today!