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Washington · Local pricing guide

Shingle Roof Replacement Cost in Longview, Washington

Typical installed range — asphalt shingles
$5,300 – $15,500

A shingle roof replacement in Longview typically runs $5,300 – $15,500 installed — $325 – $650 per square (100 sq ft) — from 3-tab up to architectural grade, tear-off included.

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Price reference · Reviewed June 2026

Shingle roofing cost by grade.

Installed prices for a full shingle replacement in Longview. Roofers quote per square (100 sq ft) — a typical single-family roof runs 17–25 squares.

  • 3-tab shingles
    Flat profile, 15–20 year typical service
    $5,300 – $10,000
  • Architectural shingles
    Dimensional, 25–30 year — the U.S. default
    $7,700 – $15,500
  • Designer / premium shingles
    Slate and shake look-alikes
    $11,500 – $24,000
  • Underlayment & ice barrier
    Synthetic felt, ice & water shield where code requires
    $475 – $1,950
  • Deck repair (plywood)
    Replacing rotted sheathing, priced by extent
    $475 – $2,400
  • Tear-off & disposal
    Old layers off, dumpster included
    $950 – $2,900
  • Permits & inspection
    Varies by municipality
    $250 – $950

* Adjusted for Longview's labor market — an on-site measure sets the square count.

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Build your Longview estimate

Adjust the inputs below. The range updates live and is adjusted for Longview's labor market —-4% vs national avg.

Your estimate
$8,300–$16,000
for Longview, Washington · -4% vs national avg

Indicative range based on Longview-adjusted rates. Deck condition, flashing, and contractor overhead may shift the final invoice. Get written quotes from licensed roofing contractors before signing.

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Before you sign: the quote checklist

  • Get quotes from at least 3 licensed roofing contractors in Longview.
  • Make sure every quote itemizes tear-off, underlayment, flashing, and disposal.
  • Verify licensing and insurance before hiring — ask for certificates, not promises.
  • Ask about both the material warranty and the workmanship warranty — they differ.
The local picture

Shingle Roof in Longview: what matters

Longview's mix of historic homes near Lake Sacajawea and newer subdivisions in the Highlands means roof replacement needs vary widely. The region's mild, wet climate—with over 60 inches of annual rainfall—accelerates wear on asphalt shingles, often leading to moss growth and granule loss. Understanding how local weather, housing age, and Washington's building code influence your project helps you plan effectively. This guide covers the key factors that shape shingle roof replacement cost in Longview, so you can approach your project with realistic expectations.

Cost factors

Why Roof Replacement Costs Vary in Longview

Longview's coastal climate demands shingles rated for moisture and wind resistance, which can affect material pricing. Homes in older neighborhoods like the Highlands often have steep roof pitches or complex valleys that increase labor time. Washington's energy code requires adequate underlayment and ventilation, adding to material lists. Local disposal fees for old shingles and the cost of permits from the city's permitting office also factor in. Labor rates in Cowlitz County reflect the regional cost of living and demand for skilled roofers. Each of these variables means no two replacement quotes are identical.

Longview by the numbers

U.S. Census Bureau · ACS
50,837
Population
12,189
Homeowners
59% own
$317,500
Median home value
$61,352
Median income
1969
Median home built
≈ 57 yrs old
21,684
Housing units

12,189 homeowner households, median home built 1969 — a housing stock where many roofs are at or past their service life. Local labor sets the rate roofers charge in Longview.

Field notes

Common Reasons Longview Roofs Need Replacement

  1. Moss and Algae Growth

    Longview's frequent rain and shade from mature trees create ideal conditions for moss and algae, which trap moisture against shingles and accelerate deterioration.

  2. Wind Damage

    Winter storms off the Columbia River can produce gusts over 50 mph, lifting shingle edges and causing blow-offs, especially on older roofs with weakened seals.

  3. UV Degradation

    Even in a cloudy climate, UV exposure over 15-20 years causes shingles to become brittle and crack, particularly on south-facing slopes in neighborhoods like the Highlands.

  4. Ice Dams

    While less common than in colder regions, occasional freeze-thaw cycles in Longview can lead to ice dams along eaves, forcing water under shingles and into the decking.

  5. Granule Loss

    Heavy rain runoff gradually washes away protective granules, leaving shingles vulnerable to sun and moisture. This is widespread in older roofs across the city.

The process

What to Expect During a Longview Roof Replacement

In Washington, roofing contractors must be registered with the state Department of Labor & Industries and carry a bond. Your local building department will require a permit for structural work, and an inspection is typically needed after the tear-off and before the new shingles go on. The process starts with a thorough inspection and measurement, followed by protecting your landscaping. Tear-off of the old roof, deck repairs if needed, underlayment installation, and then the new shingles. A final inspection ensures compliance with the state of Washington's building code.

Nearby coverage

Shingle Roof pricing near Longview

Q&A

Shingle Roof cost questions — Longview

How does Longview's climate affect shingle roof replacement cost?

Longview's wet climate means materials must resist moisture and moss. This often requires algae-resistant shingles or additional treatments, which can cost more than standard shingles. The need for proper ventilation to prevent moisture buildup also adds to material and labor costs.

What should I look for when choosing a roofing contractor in Longview?

Verify that the contractor is registered with Washington's Department of Labor & Industries and has a valid bond. Ask for proof of insurance, including liability and workers' compensation. Check references from recent jobs in Longview, especially homes with similar roof types and ages.

Do I need a permit for a roof replacement in Longview?

Yes, most roof replacements require a permit from the city's permitting office. Your contractor should handle the permit application. The permit ensures the work meets the state of Washington's building code and will be inspected for safety and quality.

When is the ideal time to replace a shingle roof in Longview?

Late spring through early fall offers the most consistent dry weather for installation. Summer months (July-September) typically have the least rainfall, reducing the chance of weather delays. However, contractors may be busier then, so plan ahead.

How long does a typical shingle roof replacement take in Longview?

A standard replacement for a 2,000-square-foot home usually takes 2 to 4 days, depending on weather and roof complexity. Factors like steep slopes, multiple layers of old shingles, or deck repairs can extend the timeline.

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