Roofing in St. George, UT
An independent look at what a replacement really costs ($11K–$24K), which weather loads drive wear here, and how the local permit process works — built from 1991-2020 climate records and Utah code requirements, with no contractor paying to appear.
Washington County, Utah. Planning figures — not a quote.
What a roof costs in St. George
A full tear-off and replacement in St. George runs $11,300–$23,700 for architectural asphalt shingles on a 2,000–2,500 sq ft home. Such a footprint carries roughly 22–28 squares of actual roof surface once pitch and waste are counted, which puts the same job at about $448–$940 per square — the unit a contractor's estimate will be built in.
That midpoint lands within 2% of the $17,100 median across the 935 cities researched on this basis — St. George is a middle-of-the-market asphalt roof.
| Material | Installed range | Service life | Best suited to |
|---|---|---|---|
| 3-Tab Shingles | $8,900 – $19,900 | 15–22 years | Lowest upfront cost for straightforward rooflines and short hold periods. |
| Architectural Shingles | $11,300 – $23,700 | 24–32 years | Most common replacement baseline balancing performance and budget. |
| Impact-Resistant Class 4 | $13,300 – $29,400 | 30–40 years | Storm and hail resilience with potential insurance value in many counties. |
| Exposed-Fastener Metal | $15,100 – $37,500 | 30–45 years | Durability-forward option for lower maintenance in wind-prone markets. |
| Standing Seam Metal | $17,500 – $44,100 | 40–60 years | High-performance option for wind-driven rain and long lifecycle value. |
| Premium Synthetic/Slate | $21,400 – $55,800 | 45–80 years | Premium homes and historic-style architecture seeking long service life. |
On what is and isn’t included
The $11,300–$23,700 band covers tear-off, underlayment, the new covering, disposal, and labor on a 2,000–2,500 sq ft footprint. It excludes deck replacement — on a St. George roof at this price, budget a further $678–$2,844 if the sheathing is soft.
Installed cost divided by service life, using St. George’s own figures. Impact-Resistant Class 4 works out cheapest per year at about $610 — even though it is not the cheapest to buy. The bar shows best case to worst case; the dot is the midpoint. All of it assumes the roof reaches its rated life, which depends on the installation more than the product.
Each tick is one of the 935 cities researched on the same basis. St. George sits at the 57th percentile.
What moves the number in St. George
The $11,300–$23,700 band above assumes a straightforward roof. These are the items that move a St. George quote off it, priced against that same range rather than a national percentage.
| Cost driver | Effect | Why it costs what it does |
|---|---|---|
| Steep pitch (7:12 and above) | +$1,925–$3,325 | Staging, slower coursing, and fall-protection time. On a $17,500 St. George roof that is the largest single geometry premium. |
| Removing a second layer | +$1,017–$3,792 | Tear-off and disposal roughly double. Ask whether the $11,300–$23,700 quoted assumed one layer. |
| Sheathing replacement | +$678–$2,844 | The most common change order, priced per sheet once the deck is open. At $17,500 for the roof itself, an undisclosed sheet rate is where a St. George quote quietly grows. |
| Two-story access | +$1,050–$1,750 | Longer material handling on every course, worth roughly $1,400 on this range. |
| Class 4 impact-resistant upgrade | +$2,000–$5,700 | Taken from the St. George table above. Whether a carrier credit offsets that $2,000 depends on your own policy — price it, do not assume it. |
| Standing seam metal instead of asphalt | +$6,200–$20,400 | Roughly double the service life, so the comparison is $648 a year against $474 a year, not the sticker price. |
| Ventilation correction | +$350–$875 | Balancing intake to exhaust. At 116 days a year above 90°F and a 99°F summer average, this is the cheapest life-extension on the list. |
What the weather does to roofs in St. George
Across the 1991-2020 climate normals, St. George averages summer highs averaging 99°F, 9 in of precipitation a year, and 116 days a year above 90°F — the loads a replacement here is bought to survive.
The dominant stressor is thermal cycling and UV. St. George’s 116 days a year at or above 90°F sits in the 96th percentile among the 1,037 cities covered here. 116 days a year above 90°F is enough to drive the asphalt-aging clock without dominating it. Ventilation balance still pays for itself here; a reflective or heavier-mat shingle is a judgement call rather than an obvious buy.
Source: NOAA 1991-2020 U.S. Climate Normals, nearest reporting station (3 mi from St. George). Percentiles are measured against the 1,037 cities in this guide.
Permits and code in St. George
Permits and code
Reroof permits in St. George are issued by City of St. George Building Department, and permit plus inspection fees typically land in the $180–$650 band.
Roofing work is generally administered under state-adopted residential code frameworks with snow-load and wind exposure amendments.
Confirm in writing that City of St. George Building Department is pulling the permit and that the fee is inside the quote — an unpermitted roof surfaces later, at a sale or a claim.
What matters at inspection here
Driven by St. George’s measured climate
- Attic ventilation balance. 116 days a year above 90°F makes this the item that decides service life. Intake and exhaust must match; adding exhaust alone short-circuits the airflow and cooks the deck faster.
- Deck condition and fastener holding. With no single climate hazard dominating in St. George, sheathing that will not hold a nail is the most likely reason a scope changes mid-job.
Where this guide covers in St. George
ZIP codes
St. George spans Washington County, and this guide covers the 4 ZIP codes carrying a St. George mailing address.
- 84770
- 84771
- 84790
- 84791
Closest cities in this guide
Straight-line distance from St. George, nearest first.
St. George roofing questions
How much does a new roof cost in St. George, UT?
Architectural asphalt shingles on a 2,000–2,500 sq ft home in St. George run $11,300–$23,700 installed, or about $448–$940 per roofing square. Three-tab shingles start lower at $8,900 - $19,900. Premium assemblies reach $17,500 - $44,100. The midpoint is 2% above the median across the 935 cities researched on the same basis.
What wears out roofs fastest in St. George?
Thermal cycling and UV. St. George records 116 days a year at 90°F or above, which is the 96th percentile among the 1,037 cities covered here. 116 days a year above 90°F is enough to drive the asphalt-aging clock without dominating it. Ventilation balance still pays for itself here; a reflective or heavier-mat shingle is a judgement call rather than an obvious buy.
Do I need a permit to replace a roof in St. George?
Most full tear-offs require a permit and at least one inspection, handled by City of St. George Building Department. Budget $180–$650 for permit and inspection fees. Get it in writing that the permit is pulled and the fee sits inside the quote; in St. George an unpermitted roof tends to surface at a sale or a claim, years later.
Does this guide cover areas near St. George?
Yes — the closest are North Las Vegas (106 mi), Henderson (107 mi), and Las Vegas (108 mi), each researched separately. Comparing them is worth a minute: a contractor working out of North Las Vegas will quote St. George too, and the two markets do not always price the same.
Compare three local quotes
The ranges on this page are for planning. The only way to know your number is a measured scope from a contractor who has been on the roof. We will pass your details to vetted local companies — no cost, no obligation.