When a commercial roof starts showing its age, gathering proposals is usually the first step on a property manager’s to-do list. When bids come in, it’s tempting to jump straight to the bottom line on the final page.
Seeing a quote that’s thousands of dollars lower than the rest feels like a win for your operating budget. But two roofing quotes can look similar on the surface while offering very different scopes of work, materials, warranties, and long-term value. A lower bid isn’t necessarily bad; the important question is whether you understand exactly what you’re getting for the price.
After 70 years in commercial roofing, we’ve seen plenty of situations where selecting a contractor based on price alone leads to headaches, unexpected change orders, and premature failures. In this blog, we’ll highlight the most important red flags to watch for when evaluating commercial roofing quotes so you can properly protect your investment.
Avoid on Sight: Big Red Flags to Watch Out For
Before you get too far into the details, make sure you’re comfortable with the contractor you’re hiring. Here are three warning signs you can spot before a crew ever steps onto your property.
Check licensing and insurance limits
Tennessee and Alabama both enforce strict monetary limits on contractor licenses. A company may hold a license, but it might not be legally covered to perform a $500,000 project. A quick search on the state licensing board website will tell you whether the contractor is qualified to handle the scale of your job.
Look for verified local references
Ask for contacts at similar commercial facilities where the contractor completed work at least three years ago. A low bidder may do acceptable work on day one, but long-term performance is what protects your facility.
Watch out for one-size-fits-all proposals
Every building has unique ventilation needs, drainage patterns, and structural quirks. If a quote lacks detail and reads like a generic template, the contractor is likely skipping essential prep work.
Beyond the Bottom Line: What Low-Bid Quotes Secretly Leave Out
Oftentimes, the most dangerous cost-cutting happens in the fine print. If a specific task or material is not explicitly listed in the scope of work, assume you are not getting it. Budget quotes often hide savings by omitting key components, such as the following common examples:
Manufacturer No Dollar Limit (NDL) Warranties
A basic contractor warranty covers labor for a short period. A true No Dollar Limit (NDL) warranty comes directly from the material manufacturer. It requires a third-party inspector to verify every seam and flashing detail before issuing the warranty. Cheap quotes almost always skip this step to avoid inspection scrutiny and fees.
Tear-Off vs. Recover Details
Here’s an easy question worth asking when reading a quote: What will happen to your current roof?
In some cases, recovering an existing roof can make sense. In others, moisture or damage beneath the membrane may make a complete tear-off the better option. A contractor should inspect the existing system and explain the reasoning behind their recommendation rather than simply choosing the least expensive approach.
Scope of Work Details
If the quote doesn’t specifically say your existing roof will be removed down to the deck, don’t assume that it’s included in your scope. The same applies to insulation; ask what type and how much is included.
You should also understand how the new roof system will be attached. Ask whether the project calls for a mechanically attached, adhered, or other system and why that approach is recommended for your building.
Metal Accessories
Gutters, downspouts, coping caps, and counterflashings are critical to a watertight building envelope. Budget quotes often leave metal fabrication out completely or treat it as an expensive add-on later.
Discover how our in-house sheet metal team makes it more cost-effective to install metal accessories: How Maxwell’s In-House Sheet Metal Fabrication Elevates Commercial Roofing Projects
A Real-World Example: Paying Twice for One Repair
We recently inspected an industrial facility that suffered severe wind damage along a roof edge. High winds blew off the metal coping, exposing the underlying insulation to heavy rain.
We submitted a proposal to tear off the damaged section down to the metal deck, replace the soaked insulation, install a new thermoplastic membrane, and fabricate custom metal coping to seal the wall. Another contractor offered a “budget repair” option that installed a new layer over the wet roof, slapped down some coating, and held the membrane in place with sandbags. The owner went with the lower quote.
Six months later, persistent leaks forced the owner to call us back out. The cheap repair had completely failed. Because moisture had been trapped under the quick fix for months, the damage had spread. The owner ended up paying for the full tear-off we originally recommended, plus additional labor to remove the failed patchwork—all at updated material prices. The savings from the low bid turned into a massive financial loss.
Making The Best Decision for Your Commercial Roofing Project
A good roofing quote should give you enough information to understand what you’re buying. If something isn’t clear, ask.
What is being removed? What is being installed? What insulation is included? How will the system be attached? What metal work is part of the project? What warranty comes with it? And why is this particular system right for your building?
The goal isn’t necessarily to choose the highest-priced proposal. It’s to choose a contractor who understands your building, provides a clear scope, and gives you confidence in their proposed plan of action.
Right now, you can get a behind-the-scenes look at how we build a commercial roofing quote at Maxwell. If you’re comparing commercial roofing quotes and have questions about what’s included, we’re always happy to talk through the details.
Evaluating commercial roofing bids for your facility? Connect with a Maxwell Roofing team member today for a clear, comprehensive proposal built around your building’s long-term health.