Flat Roof Repair in Tempe, AZ
Seam repair, ponding fixes, and membrane patching — common on East Valley commercial buildings, additions, and casitas.
Flat roofs fail at the seams and the drains
Flat and low-slope roofs rely entirely on the membrane staying intact and water draining properly — there's no pitch to help water find its way off. Tempe's climate is especially hard on these systems: months of intense UV and heat dry and stiffen a membrane, then monsoon storms hit it with sudden temperature swings and heavy rain, and that expansion-and-contraction cycle is what opens seams and cracks membranes that looked fine in June. When a seam separates or a drain clogs, water sits, and standing water is the fastest way to turn a small issue into a real leak.
We work on TPO, EPDM, modified bitumen, and built-up (BUR) roofing — patching and re-sealing seams, correcting drainage where water is pooling, and repairing membrane damage before it spreads. For roofs with more widespread wear, we'll walk you through recoating options that extend the roof's life without a full replacement. Read more about how we work or see which East Valley cities we cover.
Get a flat roof quoteWhat to watch for on a flat roof
Flat roof issues are easy to miss until they've spread.
Ponding water 48+ hours after rain
Standing water that doesn't drain within two days signals a slope or drainage problem.
Bubbling or blistering membrane
Trapped moisture under the surface shows up as raised bubbles across the membrane.
Visible seam separation
Lifted or cracked seams are the most common entry point for water on a flat roof.
Leaks near interior drains or scuppers
Interior water damage that traces back to a roof drain usually means it's clogged or failing.
From first call to a sealed roof
Four steps, no surprises along the way.
Free Inspection
We walk the roof, document damage with photos, and explain what we see.
Written Estimate
A clear, itemized quote — no vague line items, no pressure to sign today.
Repair
Scheduled work, done by our crew, with the job site left clean each day.
Final Inspection
We walk the finished roof with you before we call the job done.
Other ways we can help
Flat roof repair questions
Why does my flat roof keep ponding water?
Ponding usually means a drain is clogged or the roof has settled unevenly over time, creating a low spot. We identify the cause, not just patch the symptom.
How long does a flat roof membrane repair last?
A properly sealed seam or patch typically lasts several years, and we back every repair with a 5-year workmanship warranty.
Do you work on commercial flat roofs too?
Yes — flat roofs are common on East Valley retail, office, and multi-unit buildings, and we schedule work to minimize disruption to tenants.
Why does Tempe's weather cause more flat roof problems than other climates?
It's the swing between extremes. Months of intense sun and heat dry out and stiffen a membrane, then monsoon storms hit it with sudden temperature drops and heavy rain. That repeated expansion and contraction is what opens seams and cracks a membrane that looked fine a few months earlier — which is why flat roofs here often need attention sooner than the material's rated lifespan would suggest.
Water pooling on your flat roof?
Get it looked at before the next rain adds to the problem.