How to Choose a Roofing Contractor in Portland, OR

Hire a Portland roofer with an active Oregon CCB license, liability and workers’ compensation insurance, a manufacturer certification such as GAF’s, and a written contract, which Oregon requires for any job over $2,000. Compare warranties and scope of work, not just price. Walk away from very low bids, verbal⁠-⁠only quotes and high⁠-⁠pressure sales.

Why the Right Roofing Contractor Matters in Portland

Portland’s airport averages 36.91 inches of rain a year, about three quarters of it from October through March (National Weather Service, 1991 to 2020 normals). Add moss and sudden storms, and a roof here has to be installed to local standards. Poor workmanship leads to leaks, structural damage, mold and expensive repairs.

The lowest bid is tempting, but a quality installation takes proper training, good materials and attention to detail. A good roofer installs the system correctly, helps you choose materials suited to Portland’s climate, and backs the work with a warranty.

What to Verify Before You Hire a Roofer

Require all of these before you sign:

• An active Oregon CCB license. Contractors in Oregon must be licensed by the Construction Contractors Board and must put their license number on their advertising. Homze’s license is CCB 239804.
• General liability and workers’ compensation insurance. Insurance protects you and the workers on your roof.
• Manufacturer certification. Certifications from manufacturers such as GAF or Owens Corning are one of the strongest signs of quality.
• References and reviews. The CCB suggests checking at least three references before you hire.
• Local experience. A roofer who knows Portland’s weather recommends roofing systems built to handle rain, moisture and moss.

7 Questions to Ask Before Hiring a Roofer in Portland

1. Are You Licensed and Insured in Oregon?

This is non⁠-⁠negotiable. Ask for the CCB number and proof of current insurance, then look the license up on the CCB website. Licensed contractors must carry a bond and insurance, and if a dispute comes up, the CCB’s mediation process can help. People who hire unlicensed contractors don’t get the same protections.

2. Are You GAF⁠-⁠Certified or Manufacturer⁠-⁠Approved?

A manufacturer certification means the contractor has passed factory training and can offer the manufacturer’s extended warranties, which GAF allows only from contractors it certifies. Fewer than 2% of roofers nationwide hold GAF Master Elite® status. Homze is a GAF Master Elite contractor and a 2025 GAF President’s Club Award winner.

3. Do You Provide a Written Estimate and Contract?

Verbal quotes are a risk, and in Oregon a written contract is required for any job over $2,000. The CCB says a contract should include:

• Start and finish dates
• The price and payment terms, including any down payment
• The scope of work and the materials
• How change orders are handled
• Warranties

It should also include the required notices that explain your rights as a homeowner.

4. Can I See Local References or Past Work?

Reputable contractors are glad to show their work. Ask for photos of recent Portland jobs and homeowner testimonials, and read their Google, Yelp and Better Business Bureau reviews. If you can, contact a few recent clients directly.

5. What Warranties Do You Offer?

You should get two kinds of coverage: a manufacturer warranty on the materials and a workmanship warranty on the installation. GAF’s enhanced warranties cover both: Silver Pledge™ includes 10 years of workmanship coverage on Timberline HDZ® shingles, and Golden Pledge®, which only Master Elite contractors can offer, includes 25. Our guide to roofing warranties explains what each one covers.

6. How Long Will the Project Take?

Most roof replacements take one to three days. Portland weather is unpredictable, so make sure the contractor gives you a realistic timeline, plans for rain delays and has a crew large enough to finish quickly.

7. Does My Roof Need a Permit, and Will You Get It?

In the City of Portland, reroofing a one- or two⁠-⁠family home with a material of similar weight doesn’t need a building permit, even when some or all of the roof sheathing is replaced. You do need one to reroof a townhouse or a home in a Wildfire Zone, or to install solar panels built into the roof covering. The work still has to meet the building and zoning codes either way. That is the City of Portland’s rule; if you live in another city, ask your roofer to confirm what your city requires and to get the permit if one is needed.

How to Compare Roofing Estimates

Roof prices depend on the roof’s size and complexity, the material, the condition of the existing roof, any repairs to decking or structure, ventilation upgrades and permit requirements. Because every home is different, compare detailed estimates rather than totals:

• Check the full system. A roof is more than shingles. Underlayment, flashing, ventilation and moisture barriers all affect how it performs.
• Compare materials. Asphalt shingles are the most popular choice in Portland for their price, durability and appearance. Architectural shingles add durability, a more dimensional look and a longer lifespan.
• Compare warranties, not just prices.
• Get multiple quotes, but be wary of a bid far below the others. Quality has a price.
• Start with a price range. A range helps you plan, but the final price comes from a professional inspection. Every Homze roof replacement starts with a free one.

For current price ranges, see roof replacement cost in Portland and Seattle.

Red Flags When Hiring a Roofer

• Extremely low bids
• No license, or insurance that has lapsed
• Verbal quotes only
• Refusal to show past work
• High⁠-⁠pressure tactics or door⁠-⁠to⁠-⁠door sales
• Asking you to skip a required permit or to pull it in your own name

If you sign a contract after a contractor solicits you at home, Oregon law lets you cancel that home solicitation sale with three days’ notice (ORS 701.310 and ORS 83.720 have the details).

How Homze Answers These Questions

• GAF Master Elite contractor and 2025 GAF President’s Club Award winner
• Licensed in Oregon (CCB 239804) and Washington (HOMZEL*786KQ), and insured
• Rated 4.6 on Google from 345 customer reviews
• Free roof inspection that always includes the attic
• Written, itemized quote, with old roof tear⁠-⁠off and disposal included
• GAF roofing systems exclusively, installed as full tear⁠-⁠off and replacement
• A dedicated project manager who runs your job and keeps you updated

Our Vancouver, WA office serves the Portland⁠-⁠Vancouver metro area.

When to Call a Roofer for an Inspection

Many homeowners don’t call a roofer until they find a leak. These signs mean it’s time for a professional inspection:

• Missing or damaged shingles
• Water stains on ceilings or walls
• Sagging roof sections
• Granules collecting in the gutters
• Storm damage from wind or fallen branches
• A roof older than 20 years

Frequently Asked Questions

How Do I Check a Roofer’s License in Oregon?

Search the contractor’s CCB number on the Construction Contractors Board website. The license summary shows whether the license is active and any complaints, unpaid claims or disciplinary history, and the business details show how long the contractor has been in business and the bond and insurance on file. The CCB also suggests checking the license again on the day work starts.

How Much Does a New Roof Cost in Portland?

With current Homze pricing, a new roof on a 2,000 sq ft two⁠-⁠story home in Portland costs an estimated $11,400 to $16,150, and $19,950 to $28,260 on a one⁠-⁠story home of the same size. Your price is set in the written quote you get after a free roof inspection.

How Far Out Are Roofers Booked in Portland?

It depends on the season and the company, so ask each roofer for a start date in writing when you compare bids. July and August are the driest months, with about half an inch of rain each at Portland’s airport, so if you want a summer install, start collecting quotes in spring.

Should I Get Multiple Quotes?

Yes. The CCB recommends vetting at least three contractors for a large project so you can compare prices and timelines. Be wary of a bid that is much lower than the others.

How Can I Prepare My Home for a Roof Replacement?

Clear the driveway and move vehicles, patio furniture and anything else near the house away from the work area. Inside, protect your belongings from the dust and vibration of the tear⁠-⁠off. Before work starts, Homze agrees with you on where materials, disposal and vehicles go.

How Often Should I Have My Roof Inspected?

At least once a year and after major storms. Regular inspections catch small issues before they become costly.

What Should I Do If I Notice Missing Shingles?

Missing shingles expose your roof to moisture, so have it inspected soon. If the damage is isolated, a repair may be enough. If the roof is older or the damage is widespread, a full replacement is usually the more cost⁠-⁠effective choice.

Can I Finance a Roof Replacement?

Yes. Homze offers interest⁠-⁠free and deferred⁠-⁠payment options for well⁠-⁠qualified buyers, on approved credit.