The roof on your commercial property is a large investment. We specialize in many types of commercial roofing with many different Manufacturers. From all types of flat roofs to fiberglass shingles or metal pitched roofs, we can handle them all. In addition to complete commercial roof replacements we also do maintenance and repairs to most roof systems.

When replacing or installing a new commercial roof it is important to receive the best possible warranty for your budget. Many people are not aware that there are many different warranties or guarantees available to them when replacing a new commercial roof. At Robertson Roofing we can offer you different warranty terms, and explain exactly what is covered by each warranty.

Every complete roof replacement by Robertson Roofing comes with a 5 year workmanship warranty. This long workmanship warranty period is our pledge to our customers that we are dedicated to installing the best roof systems and stand behind them 100%.

The material defect warranty that comes standard with all roof membranes can leave a property owner vulnerable to the majority of the roof repair costs, or replacement, if the roof membrane were to go defective during the warranty period. This standard warranty covers the cost of the top membrane material only and is prorated as the roof ages.

As a certified installer with most of the major Manufacturers we are able to offer higher-quality warranties for very little, or no extra cost.

The most popular type of warranty for commercial applications is a NDL or No Dollar Limit warranty. The NDL can be set up for different lengths of time. The typical NDL warranty terms are 10, 15, or 20 years. For the entire term of your NDL warranty all repairs will be covered by the manufacturer with no limit on the amount that these repairs may add up to, hence the No Dollar Limit name. This warranty will give you peace of mind that any roof issues will be covered. Give us a call for details on a NDL warranty for your roof system.

Shingle Roofing

At Robertson Roofing shingle roofing is a large focus of our business. We pride ourselves in providing the best roof at a fair price, from simple four hip or gable roof replacement to large roofs with all types of flashing. You can feel confident that Robertson Roofing can handle any special situation that your project may have.

We provide a 5 year workmanship warranty on all complete roof replacement projects. This warranty goes above and beyond the industry standard to prove to our customers that we are committed to installing the best roof system possible and will stand behind our product.

With our in house computerized metal fabrication shop we can handle any custom flashing or metal work that any job may require. Give us a call today to schedule a free roof estimate for your  business.

When we replace your roof we use only top quality products. We are certified by most major Manufacturers and install many types of shingle products, because of our confidence in our roofing and the materials we use we give a 5 year workmanship warranty on all complete roof replacements.

Low Slope and Flat Roofing

We have trained and certified installers for all types of commercial low slope roof membranes, from TPO to 2 ply modified bitumen membranes.

 All complete low slope roof replacements come with our 5 year workmanship warranty and Manufacturers material warranties from 12 years to lifetime.

 Looking for an energy efficient flat roof? We install white reflective low slope roof systems with insulation board to provide “R” value to your flat roof.

 Is your roof holding water? We have membranes that are not affected by standing water.

  Tired of having a flat roof? We can construct pitches over your existing flat roof and install a shingle roof.

  Call us today to schedule an estimate for your business.

Low Slope Roof Systems:

  • TPO
  • Modified Bitumen

Metal Roofing

We install most types of metal roofing, from custom fabricated standing seam to “R” panel roofing.

With our computerized metal break we are capable of fabricating our metal roof panel for any special applications.

Metal Roofing Types:


Stainless Steel


Painted Steel

Kynar coated steel