Sunroom Additions in Portland, OR
Four-season rooms built for Pacific Northwest light — usable all year.
Quick Answer
Masters Construction builds year-round sunroom additions in Portland and Vancouver, WA — insulated, heated, and permitted as living space. Pricing is set after a site walk based on glazing, foundation, and structural work. Licensed in Oregon (CCB #248237) and Washington.
With nine months of gray, a well-built sunroom becomes the most-used room in the house. We build insulated, heated four season rooms tied into your home's structure and foundation — not kit enclosures bolted to a patio slab.
Glazing orientation, shading, and ventilation are planned together so the room stays bright in December without overheating in July, and trim and flooring are detailed to match the rooms it opens onto.
Scope of Work
What’s Included
Four-season sunrooms
Insulated, conditioned rooms usable through an Oregon winter.
Three-season rooms
A lighter build for spring-through-fall use.
Enclosed porches
Existing covered porches framed, glazed, and finished.
Heating & electrical
Conditioning, lighting, and outlets planned into the room.
Insulated glazing & roofing
High-performance units and a roof flashed to last.
Permits
Drawings, submittal, and inspections handled for you.
How It Works
Our Process
- 1
Consultation & site walk
We walk the home with you, measure the existing structure, and talk through goals, budget range, and timing before anything is drawn.
- 2
Design & engineering
Our in-house studio produces plans and 3D views, and our structural team engineers the framing, foundations, and systems behind them.
- 3
Permits & pricing
We prepare and submit the permit package, answer plan-review comments, and lock a detailed, line-item price against the approved set.
- 4
Build & walkthrough
One Masters project lead runs the trades, schedules inspections, and finishes with a punch walkthrough before handing the space back.
From the Field
Recent Work
Where We Build
Areas We Serve
See every neighborhood we build in on our Portland Metro service areas map.
Client Reviews
What clients say
A new room was built along with deck and patio, in place of covered deck. Chris and his team always responded and stayed on budget, went above and beyond with meeting our needs, with quality finishes on all levels. Simply couldn't be happier with the outcome. Definitely recommend them.
Sreepallavi T.
Portland, OR · Room addition, deck and patio
Finally got around to doing the guest bathroom reno after the master bath last summer and I could not be happy enough! Our previous contractor had changed states, but a friend referred Masters and our remodel was perfect from start to finish.
Denis M.
Portland, OR · Primary and guest bathroom remodels
I recently had my bathroom remodeled by Masters Construction, and I couldn't be happier with the results! They did an incredible job communicating each step of the process, ensuring I was always in the loop about timelines and what to expect.
Zack Turner
Portland, OR · Bathroom remodel
Frequently Asked
Sunroom Addition FAQs
What Portland and Vancouver homeowners ask before they begin.
Glazing type, foundation, and whether the room is conditioned drive the number, so we price sunrooms after the site walk — the $400–$700 per square foot addition range is a useful starting point.
See our Portland remodeling cost guide for detailed ranges.
Start Your Sunroom Addition
Tell us about the home and we’ll walk the site, talk through scope, and give you a realistic range — no obligation.
CCB #248237 · Licensed in Oregon & Washington