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Maximum Asset Protection. Minimal Interruption.

Renew Your Facility. Boost Efficiency.

Specialized Commercial Roof Retrofits
with a 5-Year Workmanship Warranty.

Upgrade Your Roof
Without Shutting Down.

That failing, low-R-value membrane. That concern over expensive tear-off disposal fees. The need for a major system overhaul that doesn’t disrupt your daily business operations.

A Commercial Roof Retrofit involves installing a new, high-performance roofing system directly over an existing system, provided the existing structure can handle the load and the current roof is not saturated with water. This process is a highly efficient way to address roof failure, dramatically boost energy efficiency with new insulation, and meet current building codes—all while avoiding the significant labor, waste, and interruption associated with a full tear-off.

At Achilles Roofing & Exteriors, we specialize in non-destructive retrofit installations using lightweight, durable single-ply membranes (like TPO or PVC). Our process begins with a structural assessment to confirm feasibility, ensuring we deliver an approved, modern system that minimizes downtime and maximizes asset protection.

Key Benefit List

System Options We Provide

Modern Membranes for Non-Invasive Upgrades.

We utilize advanced, lightweight single-ply systems that are ideal for retrofitting over existing membranes.
TPO (Thermoplastic Polyolefin)

Highly durable, energy-efficient, and lightweight single-ply membrane. Ideal for retrofitting due to its heat-welded seams and reflective surface.

PVC (Polyvinyl Chloride)

A flexible, chemical-resistant, and high-strength membrane that offers excellent durability, often used in restaurant or harsh environments.

Insulation Board

New layers of insulation (e.g., polyisocyanurate) installed between the existing roof and the new membrane to meet current R-Value requirements.

Cover Board

A high-density board (e.g., gypsum or fiberboard) installed over the existing roof to provide a smooth, stable, and protective substrate for the new membrane.

Metal Retrofit

Installing new metal panels or a new single-ply system over an existing low-slope metal roof, utilizing specialized framing and transition materials.

Vapor Retarders

Installed during the preparation phase to control moisture migration and protect the new insulation layer from interior humidity sources.

Our Proven Retrofit Process

Stress-Free Commercial Roof Retrofits, Step-by-Step.

We guarantee a structurally sound, code-compliant system, installed efficiently with no operational downtime. Read our satisfied customers' reviews.
01
Assessment & Feasibility

Performing a core sample analysis and structural review to confirm the existing system is dry and the deck can handle the added load.

02
Material & System Selection

Finalizing the appropriate membrane, insulation thickness, and fastening method to achieve the desired R-Value and durability goals.

03
Deck Preparation & Remedial Repair

Making necessary repairs to the existing membrane, securing loose flashing, and preparing the substrate for the new system overlay.

04
Insulation & New Membrane

Meticulously installing the new insulation and cover boards, followed by the heat-welding of the new single-ply membrane and flashing.

05
Final Inspection & Warranty Issue

Final quality check, site cleanup, ensuring full code compliance, and issuing the 5-year workmanship warranty documentation.

See Our Work:
Quality Commercial Roof Retrofit in Action.

Our commitment to commercial quality and specialized methodology is evident across all our projects. Our gallery showcases the durable, high-quality retrofit systems we've provided to maximize asset protection and minimize business interruption for clients in Houston, TX and surrounding areas.
Invest in Efficiency and Value.
Secure Your Roof Today.
Upgrade your commercial roof system efficiently and effectively. Contact Achilles Roofing & Exteriors now for a free feasibility study and quote.
Verified Houston resident Eugenia G. Matkhur sharing a 5-star testimonial for Achilles Roofing & Exterior repair services.
Eugenia G. Matkhur Google Review

I would like to post a positive review for Achilles Roofing & Exteriors team. It is second time we are doing minor work on our house and I'm very satisfied with quality of work, dedication and enormous progress on a transformation they made in both times. I do not foresee any roof repairs on my house in future but if you are looking for someone trustworthy, punctual, caring to do your roof work, I would totally trust them.

Verified local Houston customer Donna Stevens sharing her positive experience with Achilles Roofing & Exterior repair services.
Donna Stevens Google Review

Achilles Roofing & Exteriors did an exceptional job with our residential roofing project, providing top-notch roof repair services and professional work done at a reasonable cost. Their experienced roofer team handled the quick roofing service with care and attention to detail, ensuring our new roof exceeded our expectations.

Verified Houston homeowner Elizabeth Casimiro providing a 5-star testimonial for Achilles Roofing & Exterior repair services.
Elizabeth Casimiro Google Review

We really needed a new roof and we got 5 different quotes from 5 companies and Achilles gave us the best quote by thousands of dollars! Very professional work and service and very flexible to help meet our busy schedules.I would highly recommend this company to anybody who needs roofing services.

Verified Houston homeowner Yahya Mehdizadeh sharing a 5-star review for Achilles Roofing & Exterior repair services.
Yahya Mehdizadeh Google Review

Great price · $2,000–4,000
To cool down my attic, I decided to install a solar attic fan. I got proposals from four different vendors and evaluated them based on customer service, experience, implementation, and price. Achilles Roofing & Exteriors, led by Ahmad Faiz, was the standout choice.

Verified Houston client Luis Nunez sharing a 5-star testimonial for Achilles Roofing & Exterior repair services.
Luis Nunez Google Review

Great price · $10,000–12,000
Ahmad is very professional. The process was very simple. Price was affordable and the quality of work is amazing. Thank you for the new replacement and previous rook repairs.

Local Houston homeowner Kristin Rosas providing a 5-star
Kristin Rosas Google Review

Quick turnaround on some roof repairs we needed for the sale of our home. Everything was documented on the invoice and with photos. Very professional.

Verified Houston customer Dave Davis sharing a 5-star review for Achilles Roofing & Exterior repair services.
Dave Davis Google Review

Great job on my Atrium cover. Used them before for my roof. Well done and very reasonable.

Frequently Asked Questions
What is the main advantage of a retrofit over a tear-off?

The primary advantage is the speed of installation and the drastic reduction in material disposal costs, guaranteeing minimal interruption to your facility’s operations. Schedule your Free Feasibility Study today.

Only if the insulation below the existing membrane is dry and the existing leaks are minor. If insulation is saturated, a tear-off is required. We perform a diagnostic assessment to confirm feasibility.

Most often, yes. Adding new insulation is a requirement to meet current energy codes, resulting in significant energy savings. We can calculate your required R-Value upgrade.

Absolutely. We ensure the combined system meets or exceeds all local codes for load, fire rating, and energy efficiency. We handle the documentation for maximum asset protection. Call us for a code compliance review.

Since we are not performing a noisy tear-off, internal disruption is extremely low, limited primarily to brief work near edge flashings. We guarantee minimal impact on your business.

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