- Proudly Serving Los Angeles County, CA
- (310) 919-7587
For flat and low-slope commercial buildings, TPO is one of the smartest roofing choices you can make in this climate. It is affordable, it reflects the sun instead of soaking it up, and its heat-welded seams form one continuous, watertight surface. LA Roof Kings installs and repairs the Los Angeles TPO roofing property owners and managers rely on, sized and welded to last. We are a family owned, fully licensed contractor serving Los Angeles County for more than 20 years, licensed under California Contractor License #600662. Call (310) 919-7587 for a free inspection.
TPO stands for thermoplastic polyolefin, a single-ply membrane made from a blend of polypropylene and rubber. It comes in wide rolls that get rolled out across the roof and joined with heat-welded seams, which fuse the sheets into one continuous surface with no glue or tape that can fail over time. The membrane is reinforced with a scrim, a woven mesh that gives it strength against punctures and foot traffic. Most TPO is white, and that white surface is a big part of why it works so well here. It reflects sunlight rather than absorbing it. Over the last two decades, TPO has grown into the most widely used single-ply system on commercial roofs, and it is easy to see why once you watch how it performs in the LA sun.
Los Angeles is hot and sunny for most of the year, and that is exactly the condition TPO is built for. The reflective white surface bounces solar heat away from the building, which keeps the interior cooler and takes load off the air conditioning. For a large retail floor, office, or warehouse, that can mean a real drop in summer cooling bills. It also helps you meet California Title 24 cool roof requirements, which call for reflective materials on many commercial projects. So a TPO roof is not just protecting the building, it is often part of how the building stays code compliant on energy. Add in heat-welded seams that handle ponding water better than older systems, and you have a roof well suited to flat commercial buildings across the county.
A TPO roof is only as good as the install, and the seams are where it lives or dies. Here is how we approach it:
A TPO roof is only as good as the install, and the seams are where it lives or dies. Here is how we approach it:
We choose membrane thickness based on your roof, not a one size fits all. A thicker membrane, 60 or 80 mil, stands up better to foot traffic and rooftop equipment, which matters on a working commercial roof.
Most single-layer TPO installations take about 3 to 5 working days, depending on the size and complexity of the roof. While we work, there will be equipment and materials on site during business hours. We contain dust and debris, keep roof access restricted for safety, and keep you updated on daily progress so the project never feels like a mystery.
Not every TPO problem means a new roof. Because the membrane is heat-welded, most punctures, seam separations, and flashing failures can be repaired with welded patches that bond permanently to the existing surface. The key is catching it early. A small open seam is a quick fix. The same seam ignored through a rainy season can soak the insulation underneath and turn into a much bigger job. If your TPO roof is leaking or showing wear, our Commercial Roof Repair team finds the real source and repairs it. When a roof is too far gone to patch, we walk you through Commercial Roof Replacement honestly. And if the membrane is still sound but tired, a Silicone Roof Coating can add years of reflective protection for less than a full tear-off.
We look at your roof and give you an honest assessment before you spend a dollar.
We know how LA roofs age and what actually holds up in this climate.
The name on the truck is the name on the license, and that shows in how we treat every job.
California Contractor License #600662.
We install and repair TPO roofs on offices, retail centers, warehouses, multi-unit, and industrial buildings across Los Angeles County. See the areas we cover on our Service Areas page, or browse everything we offer on our Services page. For commercial properties in Orange County, our sister company OC Roof Kings handles the same work.
TPO stands for thermoplastic polyolefin. It is a single-ply membrane made from a blend of polypropylene and ethylene-propylene rubber, reinforced with a scrim layer for strength. It comes in rolls and is joined with heat-welded seams. The surface is usually white, which reflects heat and helps with cooling.
A well-installed TPO roof typically lasts 20 to 30 years. The biggest factors are the quality of the seam welding, the thickness of the membrane, and regular maintenance. In Los Angeles, strong year-round UV is hard on any flat roof, so a thicker membrane and routine inspections help you reach the longer end of that range.
A new TPO roof in Los Angeles generally runs about $7 to $14 per square foot installed, covering tear-off, insulation, membrane, and labor. For a 10,000 square foot roof, that often lands around $70,000 to $140,000. The figure depends on membrane thickness, insulation, the number of penetrations, and access. These figures are general estimates based on typical roofing data, not a quote. Our inspection is free, and you get a written estimate before any work begins.
It depends on the building, but for the LA climate TPO has one clear edge. Both are single-ply membranes, but EPDM is black and absorbs heat, while TPO is white and reflects it, which lowers cooling costs through our long summers. TPO seams are heat-welded, while older EPDM uses adhesive seams that can be more prone to failure. EPDM has a longer track record and can be a good fit in some cases. After an inspection we will tell you honestly which makes sense for your roof.
Yes. Because TPO is heat-welded, most punctures, seam separations, and flashing failures can be fixed with welded patches that bond permanently to the existing membrane. The repair holds as long as it is done with proper equipment and the surrounding membrane is still sound. The earlier a small issue is caught, the cheaper and simpler the repair.
Often, yes. The reflective white surface bounces sunlight away instead of letting it heat the building, which reduces the load on your air conditioning during the cooling season. On a large commercial roof in Los Angeles, that can add up to meaningful savings, and it also helps the building meet Title 24 cool roof requirements.
If your commercial roof is due for replacement or your TPO is starting to leak, the next step is simple. Call (310) 919-7587 or request a free inspection, and we will give you an honest assessment, a clear plan, and a written estimate for your building.
