A fully installed corrugated metal roof on a typical San Antonio home runs about $7,000–$18,000 in 2026. Per square foot, expect roughly $3.00 on the cheap end (29-gauge bare Galvalume, simple roof) up to $7.50+ for 24-gauge PVDF with full tear-off, synthetic underlayment, and stainless fasteners. Most Bexar County residential jobs on 26-gauge with SMP coating and a single-layer tear-off land around $9,000–$14,000.
Gauge is the biggest price—and performance—lever. 29-gauge is the budget agricultural thickness. 26-gauge is the residential sweet spot for hail and coating life. 24-gauge is the premium hail play and the usual path when Class 4 insurance discounts matter.
Corrugated is the affordable metal upgrade from asphalt—not a standing-seam clone. Specified correctly, it still beats shingles on lifespan (25–40 years vs 15–20 for architectural asphalt in Texas heat), hail, and reflective coatings.
By the end of this guide, you’ll know 2026 price bands by gauge and coating, what belongs on a fair quote, when overlay makes sense, and how to avoid “cheap metal” bids that fail early.
Table of Contents
- Installed Price by Gauge
- Coatings and Add-Ons
- Roof Shape and Tear-Off
- Corrugated Cost Table
- Common Questions About Corrugated Metal Cost
- Next Steps for San Antonio Homeowners
Installed Price by Gauge
- 29-gauge: about $3.00–$4.50 / sq ft installed — budget / outbuildings; dents easier in hail
- 26-gauge: about $4.50–$6.00 / sq ft — residential minimum for most San Antonio homes
- 24-gauge: about $6.00–$7.50 / sq ft — premium hail / Class 4 path
Upgrading 26 → 24 on a typical house often adds about $2,000–$4,000 total—sometimes partly offset by insurance credits.
Practical rule: a dollar amount without a written gauge is not a complete quote. Bring competing bids to the same gauge before you compare.
Coatings and Add-Ons
- Bare Galvalume — lowest entry; fine for some utility roofs, weaker curb appeal and long-term UV story for street-facing homes
- SMP paint — common upgrade; expect chalking/fade in San Antonio sun around 15–20 years
- PVDF (Kynar-type) — about +$0.60–$1.20 / sq ft; best color hold for 30+ year residential intent
- Synthetic underlayment — about $0.40–$0.75 / sq ft; skipping it to save a few hundred is a false economy
- Stainless fasteners — small line item (~$150–$500 job range) that prevents early rust-out of carbon screws
Roof Shape and Tear-Off
Simple gables price at the low end. Hips with multiple penetrations on 1,800–2,400 sq ft roofs push labor up. Tear-off commonly adds $1.50–$2.50 / sq ft. Overlay over a single sound shingle layer is often allowed and deletes tear-off cost—but not over two existing layers, wet decking, or when code/insurer requires a full tear-off.
Corrugated Cost Table
| Item | Typical San Antonio range |
|---|---|
| 29-gauge installed | $3.00–$4.50 / sq ft |
| 26-gauge installed | $4.50–$6.00 / sq ft |
| 24-gauge installed | $6.00–$7.50 / sq ft |
| SMP vs bare | about +$0.25–$0.60 / sq ft |
| PVDF upgrade | about +$0.60–$1.20 / sq ft |
| Tear-off | $1.50–$2.50 / sq ft |
| Full residential job (common) | $9,000–$14,000 (26-ga, SMP, one-layer tear-off) |
| Full residential job (wide band) | $7,000–$18,000 |
Common Questions About Corrugated Metal Cost
What does corrugated cost here in 2026?
About $7,000–$18,000 installed for a standard home; most solid residential specs cluster near $9,000–$14,000.
Is it worth it vs asphalt?
Yes when you specify 26-gauge (or 24 in severe hail pockets) with real underlayment and good fasteners. Thin 29-gauge barn builds are not a fair asphalt replacement.
How long will it last?
25–40 years with maintenance. Plan a fastener/sealant check around year 12–15. PVDF + stainless pushes you toward the top of the range.
Best gauge for San Antonio?
26-gauge minimum for primary residences; 24-gauge where golf-ball hail is a neighborhood pattern.
Can I install over existing shingles?
Often yes for a single layer on a sound deck. Not a shortcut past rotten decking or multi-layer stacks—confirm with the contractor and local code.
Next Steps for San Antonio Homeowners
Lock gauge and coating on paper, get two quotes on identical specs, ask your insurer about Class 4 before choosing 24-gauge, and verify liability ($1M+) plus workers’ comp on the contractor’s certificate.
If you want a San Antonio corrugated metal quote specified for hail and lifespan—not the cheapest panel—RRSATX can help. Call 713-504-2341 or schedule online.