About Us


I’m The One “They” Don’t Want You To Call!

Because I Offer More Energy Efficient Triple Pane Windows That Are Made In The Northwest For The Northwest For Up To 60% Less Than “Their” Sale Price For Double Pane Windows!

Looking for a Portland window replacement company? Since 2005 David Thomas has been your source for replacement vinyl windows in the Greater Portland Metro Area. I pride myself in offering high performance vinyl windows at prices that are often up to 60% less than my competitors. My goal is saving you time and money without the high-pressure sales pitch and while still giving you the results you expect and deserve with your replacement windows. Portland customers tell my story best. Click on the link below to Dexonline to read the over 90 5 Star reviews posted by my customers. Royal Exteriors, LLC. serves most Oregon and Washington residents in Washington, Multnomah and Clackamas Counties and the City of Vancouver, WA

Why settle for double pane windows when you could have more energy efficient and noise blocking High Performance Triple Pane windows for up to 60% less!

Our Services Include
  • 45-minute, free, no-pressure, no obligation, in home,  informative presentation. Call today 503-832-0040
  • Products, pricing and services ranked among the highest in the area
  • Installed by Alside factory trained and certified installers! These guys know what their doing!
  • We accept checks, most credit cards and we offer 0% financing (oac)
  • No deposit required, You pay nothing until your windows are installed!
  • No Salesman -Owner, Dave Thomas, will call on you and oversee your project personally
  • No showroom overhead to affect your budget. I’ll bring samples to your home.
  • Our pricing philosophy – Make a little on a lot, not a lot on a little!
  • Go Ahead and Check Us Out!

  • A+ Better Business Bureau rating.
  • A rated on Angie’s List and Super Service Award winner with over 50 rated A reviews.
  • Trade Ally of Energy Trust of Oregon.
  • Read the over 90 5 Star reviews on www.dexknows.com

Current Promotions

Recommend Alside Windows
  • Maximum Performance Triple Pane Windows (Free Upgrade) Fairfield 80 is my #1 selling window with Maximum Performance Triple Pane ClimaTechTG2 Glass and dual chambers of Argon Gas for even greater energy efficiency. This window can be used to replace your aluminum or wood windows.
  • Windows Near Granite / Tile Fairfield 70 with Double Pane ClimaTech Glass and a narrow 2 5/8″ frame depth that requires no cutting back of your interior casings makes this window perfect for replacing old aluminum windows near granite or tile counters or sils.
  • Patio Sliders Fairfield Patio Door is my #1 seller with rugged brass rollers and Multi-point locking system is available in Double Pane or Triple Pane

Call today. I am ready to use my knowledge and experience to help you with your window replacement needs. Oregon and Washington homeowners can benefit from my quality products and my installation services. When you’re ready to learn more, give me a call. 503-832-0040

My office is located in Lake Oswego, but I serve residents in Oregon and Washington, living in Washington, Multnomah and Clackamas counties as well as in the city of Vancouver, WA. Give me a call today to find out if you’re in my service area. I look forward to hearing from you. 503-832-0040