Commercial Roof Replacement — Flat & Low-Slope Roofing
A new roof, installed while your facility keeps running. Full tear-off or recover on flat and low-slope roofs. Duro-Last single-ply, prefabricated to your roof's measurements, or standing-seam metal roll-formed on site. Two formal inspections before any warranty is issued.
How a roof replacement works
From core cut to warranty.
- Step 1
Site survey & core cuts
We walk the roof, cut cores to see what is under the membrane, and photograph every drain, curb and penetration.
- Step 2
Fixed-scope proposal
Repair, recover or replace — with the case for each. Duro-Last sections are measured to your roof before they ship.
- Step 3
Install around your operation
Phased by area, shift and dock schedule. No tar kettles, no noxious fumes. In-house crews averaging 20 years' experience.
- Step 4
Two formal inspections
One by us, one by the manufacturer. Every deficiency, however small, is corrected before the warranty is issued.
Roofing systems we install
The right system for the building.
We install what fits the deck, the use and the budget — not what is in the warehouse.
Duro-Last PVC single-ply
Prefabricated to your roof's measurements; most seams welded in a controlled plant. Resists grease, chemicals and ponding. 15- and 20-year NDL warranties.
Metal retrofit
Flute-fill insulation and a new single-ply membrane over your existing metal roof. Adds R-value, no tear-off, no interruption.
Metal roofing — R-panel & standing seam
Standing-seam panels roll-formed on site to exact length; R-panel for pre-engineered and agricultural buildings.
Commercial shingle roofing
Architectural asphalt shingles for steep-slope sections — offices, clubhouses, churches and mixed-slope campuses.
Acrylic & silicone coatings
Fluid-applied restoration over sound existing roofs — seals seams and fasteners and buys years before a replacement.
Recover vs. tear-off
Where the existing insulation is dry, a recover saves cost and landfill. Core cuts tell us which — we do not guess.
Recent commercial roof replacements
Replacements and recovers, as installed.
From a 160,000 sq ft recover over a ballasted roof to a church re-roofed after hail. Full tear-off where the insulation is wet; recover where it is dry.
Duro-Last case study
We went back and checked 120 of our own roofs.
Of 120 Duro-Last roofs we installed 2001–2006, all warrantied as 15-year systems, 110 (92%) were still in service as of May 2026 — verified by aerial imagery, permit records and site visits. That is what installing to spec with experienced crews looks like twenty years on.
Testimonials from our customers
“Dan Determan, Angie and her crew knocked it out of the park! Great attention to detail...our roof looks incredible!”
Google review
“Workers were professional, fast, and cleaned up daily and when the job was completed. Very reasonable pricing and attention to detail.”
Google review
“Always professional and friendly. Clean, speedy crews with quality work.”
Google review
Commercial Roof Replacement Questions
What does a commercial roof replacement cost?
It depends on tear-off, insulation, deck condition and system. A site survey with core cuts gives you a fixed proposal — usually within a week.
How long does a replacement take?
A typical 5,000–10,000 sq ft Duro-Last roof replacement runs one week. Higher square footages and rooftop density can take weeks to months. All of our projects are estimated down to the hour, so we can give you a more accurate timeline after estimating your roof.
What warranty comes with it?
Duro-Last 15- or 20-year no-dollar-limit system warranties covering membrane and workmanship, backed by the manufacturer. Issued only after the manufacturer has inspected our work.
More in Commercial Roofing Services
Let's talk about your roof.
One facility or a portfolio — call and talk to someone who has been on a roof this week, or send the details and we reply within one business day.