Basement & Historic Home Specialists
Structural remodeling, basement conversions, waterproofing, and foundation upgrades for older Portland homes.
General Contractor Portland, OR
JAM Concept Remodeling is a licensed general contractor in Portland, OR, specializing in ADU construction, basement conversions, home additions, kitchen remodeling, bathroom remodeling, framing, structural upgrades, and residential construction services throughout the Portland metro area.
We help homeowners transform older Portland homes with high-quality remodeling, seismic retrofitting, and custom residential construction solutions.
Specializing in basement conversions, ADU construction, structural remodeling, historic home renovations, and foundation upgrades throughout Portland, Oregon.
Specializing in ADU Construction, Basement Conversions & Structural Remodeling in Portland, Oregon
JAM Concept Remodeling is a Portland-based general contractor specializing in basement conversions, ADU construction, structural remodeling, historic home renovations, and residential construction projects throughout the Portland Metro area.
We work on projects involving structural framing, foundation upgrades, waterproofing, excavation, seismic retrofitting, and full interior remodeling. Many phases of construction are performed under the direct supervision of JAM Concept Remodeling to help maintain consistent quality control, project coordination, and workmanship throughout the construction process.
Our team works closely with homeowners, engineers, inspectors, and specialty trades to help deliver code-compliant projects designed for long-term durability and functionality.
SERVICES
ADU Accessory Dwelling Unit
ADU stands for Accessory Dwelling Unit and they might just be your next edited home. You might know ADUs by their other, quasi-affectionate names such as granny-flats, mother-in-law-apartments and so on. They are dwellings–either attached or detached from a main house–that exist on a lot with another house. Many ADUs are buit above garages such as the one pictured above.
Remodeling & Restoration
As an experienced Portland Remodeling Contractor, we can assure you that remodeling today is more than upgrading and repainting. It is about transforming your ideas through insightful design and creativity. The JAM Concept team has over 25 years of experience in every facet of the industry. As one of your most treasured assets your home is both an investment and a sanctuary. Trust us to build, restore, and remodel your next dream project.
New Construction
With more than 25 years of work in all fields of construction, from framing to seismic retrofits, we are happy to bring our extensive knowledge to your next project. We approach each client with professionalism and strive for creative solutions for each and every job. We welcome any inquiries and are here to help you complete your projects on time and within budget.
Retrofit / Seismic Upgrades
Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes. The house may slide off its foundation. The cripple walls (walls between the foundation and floor) may buckle and collapse (this is called racking).Your house may be lifted off its foundation.
From Consultation to Construction
STEP 1
Schedule a Consultation
Contact us to discuss your basement conversion, ADU, structural remodeling, or construction project.
STEP 2
Site Evaluation & Planning
We review existing conditions, structural requirements, permits, engineering, and project feasibility.
STEP 3
Construction & Project Management
Our team coordinates construction, inspections, scheduling, and quality control throughout the project.
WHAT OUR CLIENTS ARE SAYING
Paz F Pozarycki
I have worked with JAM Concept for many of my recent remodels and ADU projects. His work is absolutely amazing and the best value of any contractor I have used in 20 years. His workers are truly reliable and well trained. I highly recommend working with JAM Concept for not only remodels, but also painting, dry well and tile works as well.
leslie cormier
Julio and JAM Concepts managed the remodel of my basement into a new apartment. It turned out beautifully!
Julio and his crew (and subcontractors) went the extra mile from figuring out a complicated drywall solution to fit in an extra storage closet, to working closely with me on very specific, not-at-all-standard tile pattern in the shower. Julio has a craftman’s eye, and genuinely wants your project to be the best it can be.
He is also fair, has integrity, and will make a job right. For example, once the flooring started to be installed, we realized the basement floor needed more leveling than originally thought. Julio pulled up the flooring and leveled where needed.
He listens and gives thoughtful advice on how things should be done. I would recommend him in a heartbeat.
Bill Ernst
I used Jam Concept Remodeling to build our 800SF ADU plus a 200SF detached bedroom/bath. Building two adjacent buildings in a typical Portland backyard posed special challenges. Access to the site was limited to foot traffic only and room to work was cramped, but they overcame the obstacles and built steadily through a rough winter. The results exceeded my expectations. They came in on budget and completed the project within my expected time frame. Julio and his crew were dependable, conscientious, and very hard working. They are well versed in many of the trades, which made for fewer subs to co-ordinate and kept the project moving right along. I’m very happy with the work they did and highly recommend them.
“Transforming Portland Homes with Experience & Craftsmanship”
What 25 years ago began with simple residential offerings quickly ballooned into the packages we offer today, and we are always aiming to add more into our repertoire. If you’re looking for the highest quality plumbing or end finish work service at a price line you can afford.
We work hard to transform your home for better living now and in the future.
You can’t afford not to call JAM Concept Remodeling.
Roofing Services
- Commercial roofing services
- Residential roofing services
- Roof repair services
- Roof maintenance services
- Roof installation services
- Roof replacement services
- Roof seal coating services
Plumbing
Our JAM Plumbing Company is a trusted and well regarded Portland entity, known for quality, professional, and superior workmanship. We offer prompt and cost effective solutions to all your plumbing needs, from rough-in to high end finishes. Contact us for all your residential and commercial needs. We offer same day and emergency repairs.
Retrofitting Structural Contractor
We are Seismic / Earthquake local retrofitting contractor for seismic retrofitting and earthquake retrofitting services, and we can help you get right preventative measures for your home’s foundation.
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Framing Contractor
There are lots of steps involved in the process such as coming up a blueprint that shows the walls’ layout, squaring the wall frame, separately faming windows and doors.
This is one process that you want to ensure the best hands have been hired to help out. The reason is that there is no room for mistakes most especially when it comes to meeting your expectations.
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RECENT WORK
Basement Conversion with Seismic Retrofitting
Basement conversion project involving structural excavation to increase ceiling height, seismic retrofitting, foundation upgrades, framing reinforcement, and full living space remodeling to meet Portland residential code requirements.
Full Home Remodeling & Basement Conversion
Full home remodeling project including basement conversion, full bathroom installation, egress window upgrades, framing, and interior renovations designed to create additional code-compliant living space.
Basement ADU with Code-Compliant Entry
Full basement ADU conversion with new plumbing, electrical, kitchen, bathroom, and city-required exterior entry.
Historic Home Restoration & Basement ADU Conversion
Full historic home restoration project in Portland’s Irvington area including basement ADU conversion, new kitchen, bathroom, plumbing, framing, and code-compliant living space upgrades.
New Construction Backyard Living Space Addition
Ground-up backyard living space addition including excavation, new foundation, framing, plumbing, electrical, and full interior construction for approximately 700 sq ft of new living space.
New Construction ADU & Attached Living Space Addition
Complete backyard construction project including a new ADU, attached living space addition, new bathroom, framing, plumbing, electrical, and full finish work from foundation to completion.
If you want to know more about our services or need a free estimate, get in touch with us at Jam Concept Remodeling, LLC. You can use our CONTACT US form or Call 503-490-5541