Affordable Window
Replacement in
Portland, OR

Photo of Dave Thomas

I'm The One "THEY" Don't Want You To Call

Have you received a quote from another window company, only to suffer quote shock? Have you given up on replacing your old, drafty windows? With no salesmen and low overhead, I can offer more energy efficient and noise reducing triple pane windows made in the Northwest for the Northwest for up to 60% less than the sale price of double pane windows from most other window companies. Why settle for their double pane when you could have more energy efficient triple pane for up to 60% less!

Services I do not provide: I do not work on commercial property, new construction, work with other contractors, stucco, sell just the windows, repair broken or damaged windows installed by other window companies or contractors. I do not offer wood or wood grain windows. I do not offer entry doors.

I will replace your old existing windows or sliding glass doors with new energy efficient triple pane vinyl windows and sliding glass doors. Made in the Northwest for the Northwest by one of the oldest and largest window manufacturers in America backed with one of the best warranties in the industry. I serve most of Washington County, Clackamas County, Multnomah County and most of Clark County, WA. Call or email for a free no obligation quote, give me 45 minutes and I could save you thousands. 503-534-3748

- David Thomas, Owner

My Promise

As an industry veteran for over 15 years, I have grown to become one of Oregon's highest rated and award winning window replacement companies. My experience has lead me to choose Alside windows. Since 1947, Alside has grown to be one of the oldest and largest window manufacturers in the United States. Alside both builds and installs these amazing windows and backs everything with one of the best warranties in the industry. With personal award winning service and industry leading warranties

I have grown to become one of the highest rated window replacement companies in Oregon. Rated A on Angie's List and 4X Super Service Award Winner, Rated A+ BBB, Level 3 Trade Ally with Energy Trust of Oregon and over 170 combined "A" ratings and 5 Star reviews on Angie's List, Dexknows and Yelp. Give me 45 minutes and I could save you thousands.


My pricing philosophy

Make a little on a lot, not a lot on a little.

Unlike other window companies, I have no salesmen, marketing team, or showroom, and can pass on my overhead savings directly to my customers. This results in triple pane windows that are up to 60% less than double pane windows from most other companies. No deposit will be taken, you pay nothing until the job is complete.

Locally Owned

When you choose Royal Exteriors, you support a local business and work directly with me, David Thomas, the owner. Yet, you can have peace of mind knowing that both the window and installation is backed by Alside, one of the largest window manufacturers in the United States with one of the best warranties in the industry. Call today for a free in-home presentation and quote. Give me 45 minutes and I could save you thousands.

Why Triple Pane?

Triple pane windows are up to 50% more energy efficient than double pane. Block out more noise than most double pane and significantly reduce UV rays that fade furniture, floors and carpet. The extra rugged 3 3/8" frame depth prevents the warping and separation sometimes found in narrow framed double pane windows. The Energy Trust of Oregon cash incentives are more than 2X than that for most double pane. If I can offer you triple pane for up to 60% less than most other companies double pane, the real question is: Why not triple pane?

My Proven Track Record

Royal Exteriors is one of the highest rated and award winning window replacement companies in Oregon. Below are just a few of the over 60 "A" rated reviews you will find on Angie's List and over 90 Five Star reviews on Dexknows.

★ ★ ★ ★ ★

We’re happy with the entire purchase. We had ten windows and a slider installed, all triple pane. Already, our furnace doesn’t run as much, while the home stays warm, and we feel the central air will run less, with outside noise being reduced. Thanks!

- Ken & Judy

We did a lot of research on costs and types of window replacements. We found that Royal Exteriors was by far the best value. If only all home improvement companies could be as honest, dependable and capable, it would be a perfect world. We recommend this company without any reservation!

- Kathy

Working with Dave Thomas was a real pleasure. There were no hidden fees or additional costs. Also got my energy credit check on time that Dave promised. The windows look great and have reduced our energy costs in these first months since completion. I would highly recommend Royal Exteriors to anyone who needs new windows.

- Dick & Mary B.

Recently had Dave’s crew out to install new triple pane vinyl windows in the front of our home, LOVE the windows! The presentation Dave did was informative but not pushy – I appreciate that, no one wants to be bullied into something they later regret! They guys that came out to do the actual install (aka – the hard part) were also great, very friendly but quick &efficient at the same time!

- Amy

| When Dave Thomas showed up on time with a respectful approach, we had no idea we would be so impressed. After a careful and quick review of his company and product, he walked us through his estimate and our jaws hit the floor when his quote came in at a fraction of the prices we’d been given in the past.

- K & J

We just had 8 windows and 1 sliding glass door installed. the quality and professionalism was unsurpassed. Not to mention the price was half of anybody else.

- Roger & Cindy H.

It went fantastic. I would hire them again without hesitation. Dave is straight to the point and answers all questions. He is very communicative. The 2 installers that arrived on installation day from Allside were amazing.

- Blake B.

I've been following this company for years and have even cut out the ads in the Sunday Oregonian. It was finally time to get new windows before winter set in. I know what my neighbors paid for windows as they have shared that with me. So, the ads are definitely correct.. I did pay half of what my neighbors paid and got triple pane windows.

- Maya A.

The triple pane windows are not only beautiful but they are functional and have drastically reduced the noise level in our home. The crew worked hard and did a great job. We would definitely recommend Dave to anyone looking for new windows in their home.

- Carad E.

He sat down with us and true to his advertising the bid was less than half what the other companies gave us....Not often that a company lives up to and even exceeds its advertising, but Royal Exteriors certainly did....Gordon G.


Proud Winner of Angie’s List Super Service Award

2012 | 2013 | 2014 | 2015

Oregon Construction Contractors Board Licensed

Clean Record

Better Business Bureau Accredited Business

A+ Rating

Quality & Experience You Can Trust

Triple Pane Fairfield 80
My #1 Seller

Get Your Free In-Home Consultation

Complete the form below to set up your free consultation with me, Dave Thomas, owner of Royal Exteriors.


Royal Exteriors, LLC.
4800 SW Meadows Road, #300
Lake Oswego, OR 97035


Oregon CCB# 206144
Washington #ROYALEL854JG

Phone: 503.534.3748