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Top 10 Portland Design-Build Firms in 2025

Portland homeowners understand that exceptional home renovations require both creative design vision and skilled construction expertise. That’s where design-build firms shine, offering seamless integration of these crucial elements under one roof.

At Lamont Bros Design & Construction, we’ve partnered with hundreds of Portland homeowners to bring their renovation dreams to life. Through our years of experience in the local market, we’ve gained deep insight into what makes a design-build firm truly exceptional. We’re proud of our work and confidently include ourselves among Portland’s best, while also recognizing and respecting the unique strengths of other firms in the area.

Whether you’re planning a kitchen remodel, home addition, or complete home renovation, choosing the right design-build partner is crucial. We’ve compiled this carefully researched list of Portland’s top 10 design-build firms to help you make an informed decision. Each company brings its own specialties, style, and approach to the table.

You’ll discover:

  • What makes each firm unique
  • Their areas of expertise
  • Why they stand out in Portland’s competitive market
  • How to determine which firm best matches your project needs

Let’s explore the top 10 design-build firms reshaping Portland homes:

1. Lamont Bros. Design & Construction

Lamont Bros. Design & Construction stands out in Portland’s design-build market with a well-earned reputation for precision, consistency, and client-centered project management.

We’re known for our commitment to budget and schedule accuracy because our team excels in delivering top-quality remodeling projects with minimal variance from the original plan. Specializing in everything from kitchen and bathroom remodels to complex home additions, Lamont Bros. brings a high level of expertise and dedication to each project.

Strengths

Budget Reliability:
Lamont Bros. maintains an exceptional track record of keeping project costs within 5% of the initial estimate, even when client-requested changes are factored in. This budget control offers clients peace of mind and a clear picture of project investment.

On-Site Leadership:
Every Lamont Bros. project benefits from dedicated, constant on-site supervision by a skilled site superintendent. This hands-on leadership from start to finish ensures quality oversight and responsive communication throughout the construction process.

Schedule Consistency:
In addition to budget reliability, Lamont Bros. maintains an impressive time variance of less than 2 days from the initial project schedule. This consistency reinforces their commitment to timely delivery and minimizes disruptions to clients’ lives.

Ideal Projects

Lamont Bros. is ideal for clients looking for a design-build firm that emphasizes transparency, precise budgeting, and strict adherence to project schedules. Our meticulous approach and strong on-site leadership make us particularly well-suited for homeowners who value structured project management and minimal surprises during a remodel.

Whether it’s a kitchen renovation, bathroom remodel, or full home addition, Lamont Bros. delivers high-quality results that meet or exceed client expectations.

2. Neil Kelly

Neil Kelly has operated as a design-build firm in Portland since 1947. Over the years, they’ve built a stable client base among the area’s professionals and executives through their traditional approach to luxury remodeling.

What Sets Them Apart: They offer a range of services including home remodels, custom builds, ADUs, and energy solutions. As a large, established company, they have standardized processes and multiple teams handling different aspects of each project.

Ideal For: Homeowners seeking a conventional high-end remodeling experience with a well-known company. Their structured approach works well for straightforward luxury renovations and traditional custom homes.

3. Creekstone Design + Remodel

Creekstone is an established design-build firm in Portland known for their structured approach to home remodeling. Their process emphasizes detailed planning phases before construction begins.

What Sets Them Apart: They primarily work with union carpenters, which can affect project timelines and costs. While this arrangement ensures skilled labor, it may not align with every homeowner’s preferences or budget. Their design process includes multiple planning stages that some clients might find lengthy.

Ideal For: Homeowners who prefer an extensive pre-construction planning process and are specifically interested in working with union labor. Their services typically focus on standard home renovations like kitchen and bathroom remodels.

4. Roloff Construction

Roloff is a Portland design-build firm with a licensed architect on staff. They operate as a smaller company focusing on architectural design and construction services.

What Sets Them Apart: Their in-house architect participates in project design and planning. As a boutique firm, they manage a select number of projects at a time, overseeing each from initial design through construction completion.

Ideal For: Projects where architectural design plays a central role, such as structural remodels, custom homes, and renovations. Their services include architectural planning and full construction management. Roloff is recognized among the design-build firms in Portland because of its unique blend of architectural expertise and boutique project management. With a licensed architect on staff, this smaller, more personalized company offers a level of precision and architectural insight that’s admirable.

5. Cooper Design Build

Cooper Design Build has operated in Portland for over 30 years, offering design and construction services for residential projects. They work primarily on whole house remodels, additions, kitchens, and bathrooms.

What Sets Them Apart: Their process includes fixed price agreements and regular project updates. They focus on higher-end residential remodeling and provide design services as part of their construction package.

Ideal For: Homeowners planning larger remodeling projects such as whole-house renovations, kitchen updates, or home additions. Their services include design planning and construction management for residential remodeling work.

6. Arciform

Arciform has been a Portland design-build firm since 1997, specializing in historic home renovations. They work on updating older homes to include modern features while maintaining period elements.

What Sets Them Apart: Their team focuses on historic properties and period-appropriate renovations. They keep most work in-house rather than subcontracting, and their process includes both design and construction management for older homes.

Ideal For: Projects involving historic properties that require updates while preserving original architecture. Their work typically includes adding modern amenities to older homes and managing renovations of period structures.

7. Green Hammer Design Build

Green Hammer has operated in Portland since 2002 as a B-Corp certified design-build firm focusing on environmental construction. Their projects incorporate green building practices and sustainable materials.

What Sets Them Apart: They work with specific green building standards including Passive House, Net Zero Energy, and LEED certification. Their process involves selecting materials and systems that align with environmental guidelines and energy efficiency requirements.

Ideal For: Construction projects requiring environmental certifications or incorporating specific sustainable building standards. Their services include new home construction and remodels that prioritize energy efficiency and sustainable materials.

8. Mosaik Design & Remodeling

Mosaik Design & Remodeling is a Portland design-build firm that combines construction services with interior design work. They handle residential remodeling projects with a focus on interior finishes and styling.

What Sets Them Apart: Their process integrates interior design planning from the beginning of each project. They select materials and finishes as part of their standard remodeling services, and their team includes both construction and design staff.

Ideal For: Remodeling projects that involve interior design decisions such as material selection and space planning. Their services cover both the construction aspects of remodeling and interior design choices like fixtures and finishes.

9. Square Deal Remodeling Company

Square Deal Remodeling has operated as a family business in Portland since 1992. They provide residential design and construction services with their in-house team.

What Sets Them Apart: They incorporate green building products into their projects when requested. As a family-owned company, they handle both design and construction phases of remodeling work with their staff rather than subcontractors.

Ideal For: Local remodeling projects that require both design and construction services. Their work includes standard home renovations with options for environmentally conscious materials.

10. Mountainwood Homes

Mountainwood Homes Mountainwood Homes is a Portland design-build firm offering both remodeling and new construction services. Their team provides residential design and construction management.

What Sets Them Apart: Their staff includes project developers, designers, and project managers who work on projects from start to finish. Their interior designer leads the design aspects of their projects, and they handle both renovations and new home construction.

Ideal For: Home remodeling projects and new home construction that require both design and building services. They work on various residential projects from individual room updates to full house builds.

Ready to Get Started?

After reviewing these Portland design-build firms, you may want additional help selecting the right contractor for your project. Our free 3-Step Guide to Choosing A Contractor provides guidance on evaluating and selecting a remodeling partner that matches your needs.

To learn more about Lamont Bros. and discuss your remodeling project, you can schedule a free consultation with our design team using the button below.