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What drives the price of a new roof

Roof size Roofing is priced per square (100 sq ft), so the footprint of your home is the single biggest factor.
Pitch Steeper roofs have more surface area and require fall protection under WAC 296-880, which adds labor.
Complexity Hips, valleys, dormers and skylights slow installation and increase shingle waste.
Tear-off layers Washington code (IRC R908.3) allows a maximum of two layers, so anything beyond one existing layer must come off.
Decking Rotted OSB or plywood is replaced at $95 per 4×8 sheet, only where needed.
System Denali and Alpine Premium use CertainTeed’s full Integrity Roof System and qualify for SureStart PLUS coverage; Cascade does not.

Cascade vs. Denali vs. Alpine Premium

Cascade

$499 – $550 per square

CertainTeed Landmark shingles, 50-year material guarantee, Alpine 10-year workmanship guarantee, casual scheduling.

Denali MOST POPULAR

$550 – $650 per square

Landmark shingles, RoofRunner underlayment, Vycor Select ice & water, ridge ventilation, 5-Star SureStart PLUS, 30-year workmanship guarantee, priority scheduling.

Alpine Premium

$650 – $800 per square

Landmark PRO shingles, Vycor 40 mil ice & water, 5-Star PREMIER SureStart PLUS, lifetime workmanship guarantee.

Roof replacement cost by city

Pricing per square is the same across our service area, but design snow loads, permit jurisdictions and the way roofs actually fail are not. Pick your city for the local detail:

Frequently asked questions

How much does a roof replacement cost in Spokane, WA?

Most Spokane homeowners pay between $499 and $800 per roofing square (100 sq ft) for an asphalt shingle roof replacement from Alpine Roofing. For a typical 1,500–2,400 sq ft home that works out to roughly $9,000–$22,000. The final price depends on roof size, pitch, complexity, tear-off layers and the system you choose.

What is a roofing square?

A roofing square is 100 square feet of roof surface. Contractors price by the square because it accounts for the whole roof area, including slope and overhangs, rather than the home’s floor plan.

Why is my roof area larger than my home’s square footage?

Roof area is always larger than the footprint because of pitch (slope) and eave overhangs. A 6/12 pitch adds about 12%, and a 10/12 pitch adds about 40%. The calculator uses the measured roof surface plus a 10% waste allowance, which is standard for shingle cutting.

Do I need a permit to replace a roof in Spokane?

Yes. The City of Spokane requires a permit and a minimum of two inspections. On a tear-off the first inspection happens after the ice shield is installed but before shingles go on — the one most commonly missed. Spokane County and Spokane Valley are separate jurisdictions with their own permit desks. Alpine pulls the permit and books the inspections as part of the job.

What does the estimate include?

Tear-off of one existing layer, haul-away and disposal, synthetic underlayment, ice and water barrier at eaves and valleys, starter strip, CertainTeed Landmark shingles, ShadowRidge hip and ridge, and ventilation per the system selected. Decking replacement is $95 per 4×8 sheet if rot is found.

Does Alpine Roofing offer financing?

Yes. We offer low fixed-rate financing with low monthly payments. We also offer a $400 discount for paying by cash, check or ACH and a further $400 for paying in full. The two discounts stack, but cannot be combined with financing.

How accurate is this calculator?

It is a planning estimate based on our current per-square pricing and an aerial measurement of your roof, which can be off by 5–10%. Every roof is measured in person before we quote, and your written estimate is free.

Alpine Roofing is CertainTeed ShingleMaster PREMIER certified and Google Guaranteed, serving Spokane, the South Hill, Spokane Valley, Coeur d’Alene and the Tri-Cities.

Book a Free On-Site Estimate →

Roof Replacement Pricing Across Spokane and the Inland Northwest

Alpine Roofing replaces roofs throughout the City of Spokane, the South Hill, Spokane Valley and the surrounding Inland Northwest. Pricing is the same per square across our service area; what changes is access, snow-load history and permit rules, which differ between the City of Spokane, Spokane County and Spokane Valley. We confirm all of it during your free on-site measurement.

  • Spokane
  • Kennewick
  • Spokane Valley
  • Benton City
  • Richland
  • Pasco
  • Liberty Lake
  • Post Falls
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What Spokane homeowners say about their roof replacement

Quoted from Alpine Roofing’s Google Business Profile for Spokane. Alpine holds 532 customer reviews across six platforms.

★★★★★

Alpine was 1 of 3 bids we put out and were the most comprehensive, had great customer service and options for our repair or replacement. Ben was great in helping us work with our insurance through the storm damage. Our project manager, Dave, and his crew were efficient and great to work with — he kept us apprised of materials, set up, workers coming and going, and permitting requirements. The finished job looks beautiful and I know this roof will last us many years.

Sara Hill · Storm-damage roof replacement, Spokane · Google review

★★★★★

My favorite parts of their estimate process are the drones for accurate imaging and measuring, and their field kit where they detail the parts of the roofing system and how they come together. AnaSofia broke down what we were getting with each option. The crew were fast, efficient and incredibly respectful of our garden, pets and yard — they completed our house and small detached garage in two days and cleaned up the site.

Joseph Prenger · Roof replacement, Spokane · Google review

★★★★★

Alpine Roofing was great from initial estimate and throughout the whole process. The manager was on site every day. They made sure the house was protected at all times and cleaned up well every day. The job was completed exactly on schedule, and site manager Dave did a thorough final walkthrough. Even our neighbors were so impressed they have signed up for new roofs with Alpine.

Steve Gibbs · Roof replacement, Spokane · Google review

★★★★★

Excellent from start to finish. Katya in customer service, Dave who oversaw the project, the team who completed a full tear-off and re-roof in under two days, and especially Sean who came out and redid some flashing to satisfy my very high standards. My new roof is such an upgrade — a completely new and modern look done with the highest quality materials and workmanship.

Ellen Scott · Full tear-off and re-roof, Spokane · Google review

★★★★★

Between Ben, Katya and Sal we were well informed from beginning to end. They were very transparent about any pricing changes that could arise before the re-roof, and very straightforward about expectations and timelines. Sal kept us up to date throughout and made sure they left our property cleaner than it had been — all nails and debris cleaned away before leaving.

S. LaCroix · Roof replacement, Spokane · Google review

★★★★★

I love my new roof. I had it installed at the beginning of the year, and just today I found a piece in my yard. Dave took the time to check and make sure it didn’t come from my roof. I truly appreciate the effort and follow-through to ensure everything is still in good condition months after installation.

Josie Allen · Roof replacement, Spokane · Google review

Reviews quoted from Alpine Roofing’s public Google Business Profile. CertainTeed ShingleMaster PREMIER certified · Google Guaranteed · BBB Accredited Business.

Alpine Roofing happy customers.