--- title: "dioxua — General Contractors | Houzz" canonical_html_url: https://www.houzz.com/professionals/general-contractors/dioxua-pfvwus-pf~276911715 markdown_url: https://www.houzz.com/md/professionals/pf~276911715.md entity_type: LocalBusiness business_name: dioxua category: ["General Contractors"] image: https://st.hzcdn.com/fimgs/c423443e0d582f8f_3855-w400-h400-b1-p10--.jpg address: "1616 SE 11th Ave, Portland, Oregon 97214, United States" latitude: 45.5142 longitude: -122.6364 phone: "(503) 481-4365" website: http://dioxua.com rating: 5 review_count: 1 followers: 47 last_updated: 2026-09-06 --- # dioxua Original Houzz profile: [dioxua](https://www.houzz.com/professionals/general-contractors/dioxua-pfvwus-pf~276911715) ## Professional summary - **Primary category:** General Contractors - **Location:** Portland, OR - **Serves:** Portland - **Houzz rating:** 5.0 out of 5 (1 review) ## About ### Houzz Badges - Star Houzzer - 1,000 Ideabook Saves Dioxua is an eco-friendly architectural artisan specializing in small-scale projects with lasting impressions. The world is full of imagination. Let it inspire, reconnect, and lead the way. Good design is not a one size fits all solution and the first answer is rarely the best one. It is a process of understanding the client's needs and the environment they have to work with. I strive to help my clients understand what it is that they truly want, and then help them make it a reality. Have you ever wanted to improve the quality of your life by changing your environment? I am a General Contractor and an Architectural Artisan who specializes in designing and building well thought out spaces for residential or small commercial projects. ### Areas Served - Portland ### Typical Job Cost $2,000 - 50,000 ## Business Details | Field | Value | | --- | --- | | Business Name | dioxua | | Address | 1616 SE 11th Ave, Portland, Oregon 97214, United States | | Phone | (503) 481-4365 | | Website | http://dioxua.com | | License Number | 193165 | | Followers on Houzz | 47 | **Social profiles:** - Facebook — https://www.facebook.com/pages/Dioxua-LLC/142870732450834?ref=hl ## Contact - **Houzz profile:** [dioxua](https://www.houzz.com/professionals/general-contractors/dioxua-pfvwus-pf~276911715) - **Website:** http://dioxua.com - **Phone:** (503) 481-4365 ## Reviews **Overall rating: 5.0 out of 5 — 1 review** ### All 1 review **★★★★★ — Garden Diva Designs, May 2013** > I am a landscape design company that designs and facilitates outdoor living projects for mid to high end private residences. I found Joshua's work a year ago while reviewing other structure portfolios on this site. I was struck by Joshua's beautiful work and made a mental note to interview him for possible collaboration on future projects that may come into my studio. > about 1 year later, such a project came about and I contacted Joshua with my very rough concept sketch of the type of structure that my clients desired to extend the use of their outdoor living space. > Joshua was,what I would consider the very perfect combination of intelligent design and construction craftsmanship that I could have ever hoped to work with. He was able to take my concept and make it better, yet maintain all the elements that were important to the structure- no easy task! > Joshua met all deadlines with ease and went beyond the "call of duty"researching materials and technical details to ensure that this unique structure was well crafted as well as beautiful. > My clients and I are so pleased to display this new garden "pavilion". > Good design is worth every penny , and by creating a work of art like Joshua can craft, spending that penny a true pleasure. > Laura M. Crockett > GardenDiva Designs llc ## Selected projects - [Bathroom rebuild](https://www.houzz.com/hznb/projects/bathroom-rebuild-pj-vj~5725765) - Location: Not specified - Photos: 6 - [Garden Lounge](https://www.houzz.com/hznb/projects/garden-lounge-pj-vj~212808) - Location: Not specified - Photos: 5 - [Zen Garden](https://www.houzz.com/hznb/projects/zen-garden-pj-vj~77951) - Location: Portland, OR - Photos: 6 - Description: Design + Build of hot tub house and zen garden done by traveling artisan Joshua McMahon at Dioxua, LLC in Portland, OR. Schedule time for your project at (503) 481-4365. - [Clay Hut](https://www.houzz.com/hznb/projects/clay-hut-pj-vj~5724673) - Location: Not specified - Photos: 9 - [Bike locker](https://www.houzz.com/hznb/projects/bike-locker-pj-vj~5724656) - Location: Not specified - Photos: 4 - [Interior woodwork: Slats & Ceiling](https://www.houzz.com/hznb/projects/interior-woodwork-slats-and-ceiling-pj-vj~5724641) - Location: Not specified - Photos: 6 - [Rolling gate](https://www.houzz.com/hznb/projects/rolling-gate-pj-vj~5724625) - Location: Not specified - Photos: 3 - [conceptual](https://www.houzz.com/hznb/projects/conceptual-pj-vj~10355) - Location: Not specified - Photos: 1 - [1616 Resurrection](https://www.houzz.com/hznb/projects/1616-resurrection-pj-vj~10257) - Location: Not specified - Photos: 7 - [Fencing](https://www.houzz.com/hznb/projects/fencing-pj-vj~35511) - Location: Not specified - Photos: 5 - [Webb Kitchen](https://www.houzz.com/hznb/projects/webb-kitchen-pj-vj~5724666) - Location: Not specified - Photos: 5 - [Wabi Sabi Kitchen Design + Build](https://www.houzz.com/hznb/projects/wabi-sabi-kitchen-design-build-pj-vj~238492) - Location: Not specified - Photos: 11 - [Hot Tub House](https://www.houzz.com/hznb/projects/hot-tub-house-pj-vj~35509) - Location: Not specified - Photos: 4 [See all 13 projects](https://www.houzz.com/professionals/general-contractors/dioxua-pfvwus-pf~276911715) ## Ideabooks - [1616](https://www.houzz.com/ideabooks/4746847/list/1616) — 17 ideas - [Amber](https://www.houzz.com/ideabooks/293209/list/amber) — 24 ideas - [fences and outdoor space](https://www.houzz.com/ideabooks/281503/list/fences-and-outdoor-space) — 128 ideas - [Land](https://www.houzz.com/ideabooks/21812149/list/land) — 2 ideas - [ext. house parts](https://www.houzz.com/ideabooks/12553085/list/ext-house-parts) — 3 ideas - [out buildings](https://www.houzz.com/ideabooks/8672103/list/out-buildings) — 5 ideas - [Mary](https://www.houzz.com/ideabooks/8887202/list/mary) — 2 ideas - [dioxua's ideas](https://www.houzz.com/ideabooks/253913/list/dioxua-s-ideas) — 56 ideas - [dioxua.com](https://www.houzz.com/ideabooks/253933/list/dioxua-com) — 13 ideas [See all 9 ideabooks](https://www.houzz.com/ideabooks/users/dioxua) ## Community Q&A **Q: love it.. what is the material on the roof.. is it clear plastic?** *(in Photo Questions)* A: The roof is made of twin wall polycarbonate plastic. It has channels about 6-8mm thick. **Q: Beautiful fence but how?** *(in Photo Questions)* Thank you for sharing the picture of this wonderful fence. I'd love to see more pictures if available but particularly am wondering how it's made. At first I thought maybe the wire "mesh" was sandwiched into two pieces of frame but on second look perhaps the wires are drilled into the frame? Can't quite sort that out. Also am wondering if the mesh is a stock product or if it is custom too? Any info you can share would be much appreciated! Thank you :) A: Hello there! I have more pictures of this fence on my website at http://dioxua.com/content/noe-house-front-fence. Please visit my portfolio page to see more examples of similar projects. The wood is drilled for the wire. The wire is animal fencing found at a farm and feed type of place. It had to be cut to size though. If you need help with a design or build don't hesitate to contact me :) **Q: other** *(in Photo Questions)* what type of panels are those.. did you make them Or buy them? It must be beautiful at night/ Great job! A: I did make the panels. I can make them for you, too! www.dioxua.com :) **Q: Where can I find those lights?** *(in Photo Questions)* Thanks! A: I salvaged these lights from an old clothing store when they closed but I'm sure you can find low voltage cable lighting at just about any lighting store or online. **Q: Would love to know the color of the house ???? !!!!! please,thank you very much !!!!!!** *(in Photo Questions)* Would love to know the color of the house ???? !!!!! please,thank you very much !!!!!! A: @monicadelaney- find a contractor who does small projects in your area. Support your local community and small businesses :) **Q: How can I be bold with color? Not sure how to "color-up" this space. I love the lighting, the sun-roof and the high ceilings. I love the idea of using bold color, but afraid to take the plunge. Also not sure how to cozy up the space, make it inviting, but still make it feel spacious. I think my "style" is modern/casual, but I like global influences as well. Any of your suggestions would be helpful. I'm also on here all the time, so any questions fire away!!!! Thanks so much in advance. This community is so talented.** *(in Design Dilemma)* How can I be bold with color? Not sure how to "color-up" this space. I love the lighting, the sun-roof and the high ceilings. I love the idea of using bold color, but afraid to take the plunge. Also not sure how to cozy up the space, make it inviting, but still make it feel spacious. I think my "style" is modern/casual, but I like global influences as well. Any of your suggestions would be helpful. I'm also on here all the time, so any questions fire away!!!! Thanks so much in advance. This community is so talented. A: Try using clay on the walls if you want a soft organic feeling but want to retain the sophistication and order. With the amount of natural light available you will also see some sparkle from the bits of granite in its mixture. It can be finished in a multitude of textures. See an example here http://dioxua.com/content/5-thirst-wine-bar-expansion-renovation --- *Source: Houzz professional profile. Reflects the profile as of 2026-09-06.*