Commercial Roof Replacement in Gilbert, AZ
When repairs no longer make financial sense, a full replacement is the right call. We handle the entire process — permits, tear-off, deck repair, new membrane — with minimal disruption to your operations.
When It's Time for a Full Commercial Roof Replacement
Not every commercial roof can or should be repaired. When a roof has exceeded its functional life, when wet insulation covers more than 25% of the area, or when repair costs are approaching the cost of replacement, the right decision is a full tear-off and re-roof. A new system also means a new warranty — which matters for building owners who want to protect their asset long-term.
Signs Your Commercial Roof Needs Replacement
- Multiple active leaks that keep coming back after repairs
- Widespread membrane alligatoring, cracking, or shrinkage
- Wet or damaged insulation across large sections of the roof
- Deck deterioration — soft spots, corrosion, structural damage
- Repeated repairs to the same areas within 2-3 years
- Roof age exceeding 20–25 years for membrane systems
- Failed infrared scan showing extensive moisture intrusion
The Commercial Roof Replacement Process
Pre-Construction Assessment
Before any work begins, we conduct a full assessment including an infrared moisture scan to map wet insulation zones, a deck inspection at representative areas, and a drainage evaluation. This tells us exactly how much wet insulation needs to come out, whether the deck needs any repair work, and what slope corrections might be needed to improve drainage on the new system.
Permits
Commercial re-roofs in Gilbert and surrounding cities require building permits. We handle the permitting process — submitting the application, providing the required engineering documentation, and scheduling inspections. Many property owners don't realise that unpermitted roof work can create problems at sale or with their insurance carrier.
Tear-Off
We remove the existing membrane and all wet or damaged insulation down to the deck. On occupied buildings, we work in sections so that any exposed deck area is protected with temporary waterproofing before the end of each day — we don't leave open deck exposed overnight.
Deck Repair
Once the deck is exposed, we inspect every square foot. Steel decks get tested for corrosion and any damaged panels are replaced. Wood decks get checked for rot and fastener pull-out resistance. Concrete decks are checked for cracks and surface integrity. Any necessary repairs happen before new insulation goes down.
New System Installation
Insulation goes down in two layers with offset seams to eliminate thermal bridging. The membrane system — TPO, PVC, EPDM, or modified bitumen depending on the application — is installed per manufacturer specifications. All penetrations and flashings are fully detailed. The job doesn't pass our final inspection until every seam is probed, every flashing is checked, and every drain is clear and properly bonded.
Frequently Asked Questions
How long does a commercial roof replacement take?
For most commercial buildings in the 10,000–30,000 sq ft range, the job takes 3–7 business days. Larger roofs or complex buildings with lots of penetrations may take 2 weeks. We work with your schedule and can phase the work to minimise disruption.
Do I need to close my business during a roof replacement?
Usually not. We protect any exposed deck at the end of each day, control debris carefully, and coordinate noise-intensive work with your operations. Most commercial buildings we work on remain open throughout the project.
Can you install a new roof over the existing one?
In some cases, yes — this is called a recover. It requires that the existing deck and insulation are dry, that the building can handle the added weight, and that local codes permit it (most allow one recover before a full tear-off is required). We assess each situation individually.
Related Services
Commercial Roof Inspection
You can't manage what you can't see. A thorough roof inspection gives you a clear picture of what's happening up there — before a leak shows up on the inside.
TPO Roofing
TPO is one of the most popular commercial roofing systems in the Valley for good reason — it reflects heat, welds tight, and holds up against UV better than most options.
Roof Maintenance Plans
Regular maintenance is what separates a 15-year roof from a 25-year roof. Our maintenance programs are designed to catch small problems before they turn into expensive repairs or premature replacement.
Need Roof Replacement in Gilbert?
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