Home Additions in Portland
Room additions, second stories, sunrooms, and garage conversions. Novum lines up a licensed general contractor and stays on the project from plans to final inspection. Serving Portland and surrounding Oregon communities — same vetted pros, same upfront pricing, same Novum Guarantee.
Craftsman and Old Portland homes with oil-tank decommissioning, sewer-line replacements, moss-covered roofs, and basements that take on water. Heat-pump installs, gutter work, and pressure washing are routine. We cover Sellwood, Alberta Arts, Multnomah Village, St. Johns, and the rest of the Portland metro — see every Novum service in Portland.
Every pro Novum sends is licensed, insured, and vetted — and Novum stays accountable for the job.
You approve the price before we start. No hourly rates, no surprise charges.
Same-day and next-day appointments available throughout Portland.
Home Additions in Portland: what to know
With tight lots in neighborhoods like St. Johns and Multnomah Village, Portland homeowners often build up with a second story, convert a detached garage, or add an ADU for family or rental use. Designs should account for long rainy seasons, with careful roof tie-ins and drainage around the new footprint. Additions typically need permits and plan review from the city, so starting design work in winter helps a build begin in the dry season.
Home Additions services in Portland
Novum handles all of these in Portland — book online or call and we'll give you an upfront quote.
Why Portland homeowners choose Novum
Unlike platforms that send your request to whoever bids lowest, Novum assigns one vetted pro and manages the job. Every Portland home additions pro Novum sends is licensed, insured, and vetted — and Novum manages the job from request to finish. That means consistent quality, a single point of contact, and the Novum Guarantee on every job.
Home Additions FAQs for Portland
Who builds the addition?
A vetted, licensed, insured general contractor from Novum's partner network, coordinated by Novum. One request, one assigned pro, one point of contact for the whole project.
Are plans and permits handled?
Yes. Your assigned pro coordinates drawings, permits, and inspections. Novum confirms each stage is in your quote.
How is an addition priced?
After a consultation you get a detailed upfront quote covering design, labor, materials, and timeline before work starts.
How is Novum different from Angi for additions?
Angi gives you a list of builders to interview and gather bids from. Novum assigns one pro and handles scheduling and follow-up throughout.
What is the Novum Guarantee for additions?
If a defect appears after completion, Novum makes it right.
What should Portland homeowners know about home additions?
With tight lots in neighborhoods like St. Johns and Multnomah Village, Portland homeowners often build up with a second story, convert a detached garage, or add an ADU for family or rental use. Designs should account for long rainy seasons, with careful roof tie-ins and drainage around the new footprint. Additions typically need permits and plan review from the city, so starting design work in winter helps a build begin in the dry season.
Do you serve all neighborhoods in Portland?
Yes — Novum covers all of the Portland metro, including Sellwood, Alberta Arts, Multnomah Village, St. Johns, Beaverton, Lake Oswego, and ZIP codes such as 97202, 97211, 97219, 97203.
How do I get a quote?
Book online at NovumHS.com or call 435-534-6764. A Portland dispatcher will confirm the appointment and provide your upfront flat quote before any work begins.
Home Additions in other cities
Ready to book home additions in Portland?
Get an upfront flat quote. Novum lines up the pro and handles the rest.