What Does Flat Roof Replacement Cost In 2022?

commercial flat roof being waterproofed

Every year we find building managers across Florida begin the search for a commercial flat roofing company to come out and replace their current roof. Flat roofs in Florida last anywhere from 10-12 years as heavy rains and difficult storms all year long accelerate the lifespan of a flat roof dramatically. With demand for materials skyrocketing as supplies are low, prices are sure to continue rising over time. But how much does a flat roof replacement cost in 2022? The answer depends on the material!

Generally speaking, the entire removal of your current commercial roof system and the replacement with a brand new roof will likely range anywhere between $40,000 to $90,000, with both square footage and material playing key factors in the final price. Commercial roofs are drastically bigger than residential roofs, on average sitting around 10,000 square feet. 

Of course, the cost for flat roofs will shift depending on the material of your flat roof. Some of the most common materials for flat roofs include: 

  • Concrete Roofs
  • Metal Roofs
  • Flat Roofs
  • EPDM
  • Modified Bitumen
  • SPF

While the roof replacement in Florida may average around $7,000-$10,000, there are several different aspects to consider that get added to the base cost, such as:


When replacing your flat roof, you’ll likely use a commercial roof repair company to perform the removal and replacement. You’ll have to cover the cost of labor throughout the project, which can last between one to two weeks depending on environmental factors that may affect the project.

Material Removal

An intensive part of the entire process, removing the old flat roof can typically cost anywhere from $1-$5 per square foot, depending on the contractor. This portion of the project will require specialists to perform the removal, so we strongly advise against attempting to DIY the removal yourself. Outwise, you could be looking at significant damage to the entire roof system itself. 

Can I Repair My Flat Roof Instead Of Replace It?

It depends! If the damage to your roof is light, you may be able to get away with simple repairs, with patch jobs costing around $400-$700. With that said, if your commercial flat roof has gone without regular maintenance, though, you’ll likely be looking more towards a full replacement. 

How Can I Extend The Life Of My Flat Roof?

One of the best ways to extend the lifespan of your flat roof in South Florida is by having it properly waterproofed. By adding a protective barrier to your flat roof, you allow for a seal to form, blocking heavy rains from damaging your roof. Waterproofing your commercial flat roof can extend its lifespan by up to 20 years, saving you money and giving you the peace of mind knowing it’s prepared for whatever Mother Nature throws its way. 

Thankfully, Deluxe Waterproofing is here to assist with your South Florida flat roof waterproofing needs! For over 70 years, we’ve provided our premier commercial waterproofing services to buildings across South Florida. From high rises to parking garages, apartment complexes and warehouses, we have the experience, expertise, knowledge necessary to protect your roof for decades to come. Our team is dedicated to providing you with the best service possible. From the moment you contact us to the moment the installation is complete, we’re there with you every step of the way. To learn more about our commercial building waterproofing services in South Florida, contact us today either online or give us a call at (954) 623-3777.