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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon20
    Verified basement remodels reviews

Find Basement remodelers in Cornelius

Avatar for Be Home Remodeling
Be Home Remodeling
4.9(
7
)
Basement - Remodel

Serving Cornelius, OR and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"Reuben was the nicest guy I met with and will keep his number for future jobs. This company does everything small or whole home remodeling. I was impressed by his knowledge and spirit."
Response time1 day
Response rate100%
303 neighbors recently requested a quote
Avatar for Backyard Blueprint
Backyard Blueprint
5.0(
8
)
Basement - Remodel

Serving Cornelius, OR and surrounding areas

Approved

In business since 2024

Free estimates

Warranties offered

Backyard Blueprint is a family-owned business. We’ve been in the Portland area for 30 years. The challenge of keeping our family close, both aging parents and our young adult children, is an experience we’re familiar with ourselves.\n\nWe have strong partnerships within nearly every trade in the market and maintain full control of our builds from initial contact until you agree the work is done. We’re proud members of the Home Building Association of Greater Portland and the National Association of Home Builders. Our co-owner is a NAHB Certified Aging in Place Specialist.\n\nOur team is diverse and determined, and we believe in the value of continuous learning. We enjoy engaging with our prospective customers to understand your reasons for reaching out.\n\nWe believe what separates us as a company is the humility our team offers. We strive to fully understand your circumstances, and tailor our expertise specifically for you and your family’s needs. Contact us today for your FREE estimate!

ADU
General Remodeling Project
ADU
ADU
ADU

+4

2 neighbors recently requested a quote
Recommended by14%of homeowners
Avatar for Ziebart Construction, LLC
Ziebart Construction, LLC
4.6(
37
)
Basement - Remodel

Serving Cornelius, OR and surrounding areas

Approved

In business since 2004

Free estimates

Warranties offered

"This has been a great remodel experience. Everyone has been so kind and helpful. Workerâ s were neat and cleaned up everyday when they were done. Every item was clearly explained and work was done in a timely manner. Thanks Matt and crew. We love our remodel!"
Kitchen
Kitchen
Kitchen
Kitchen
Kitchen

+56

Response time3 days
Response rate93%
30 neighbors recently requested a quote
Avatar for Ovation Restoration, LLC
Ovation Restoration, LLC
4.2(
102
)
Basement - Remodel

Serving Cornelius, OR and surrounding areas

Approved

In business since 1997

Free estimates

Emergency services offered

"This project was for remodeling 3 bathrooms and a total kitchen remodel. The construction workers were very skilled. They were very good about listening to our suggestions along the way. I would suggest that the construction foreman be present along with the salesman when the project is estimated so that technical issues and be better clarified. For example, we removed carpet and installed DVT vinyl flooring which resulted in different leveling issues. These issues could have been resolved early on rather than brainstorming solutions with the workers at the ends. The project was done on time as scheduled even though we added some changes along the way. The electrical subcontractor should have clarified options for wiring for the kitchen better. The only negative comment I can make is that we thought the cost was a little high, however the quality was very good. The final project is beautiful."
Breathtaking solid slab granite countertops
Walk-in shower with sliding glass door
Handicap accessible with style
New lighting
Antique white custom cabinets

+133

Response time10 hrs
Response rate96%
1 neighbors recently requested a quote
Avatar for Elm Construction Services, Inc.
Elm Construction Services, Inc.
4.3(
34
)
Basement - Remodel

Serving Cornelius, OR and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Chris did an amazing job managing my bathroom remodel! He was very professional, kept everything on schedule and within budget, and communicated clearly throughout the entire project. I'm thrilled with the results and highly recommend them!"
GAF Roof Installation
GAF Roof Installation
GAF Roof Installation
GAF Roof Installation
GAF Roof Installation

+27

Response time5 hrs
Response rate99%
752 neighbors recently requested a quote
Avatar for 3POINT3R CONSTRUCTION LLC
3POINT3R CONSTRUCTION LLC
5.0(
7
)
Basement - Remodel

Serving Cornelius, OR and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"Martin and his crew tore up a paver patio and partial lawn and installed a beautiful patio with pavers and river rock. On time and worked quickly! I was really happy with how I was treated and the quality of work they did. It was a small project which I sometimes have a hard time finding people for and Martin was eager and made me feel like it was worth his time."
Old Vanity
Old shower
New flooring
Bathroom Remodel
Added two shower niches

+10

Response time2 days
Recommended by85%of homeowners
Avatar for MRI Construction Services
MRI Construction Services
4.1(
39
)
Basement - Remodel

Serving Cornelius, OR and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"I interviewed several companies and quickly found myself gravitating towards actual contractors rather than the sales representatives for remodel companies. Shannon was by far the most knowledgeable about the kind of problems that might emerge in a 1950s house. His bid made sense, and we worked out a strategy for acquiring the materials I really wanted rather than a pre-packaged plan. The process of removal bared several problems with dry rot that I half expected, weird things done to the floor joists and wall studs by a previous remodel that I hadn't expected, and good flooring under a surface for which I had concerns. The result went smoothly, and communication was always good."
Doors
Doors
Doors
Doors
Doors

+196

Response time8 hrs
Recommended by70%of homeowners
Avatar for Performance Renovations, LLC
Performance Renovations, LLC
4.5(
8
)
Basement - Remodel

Serving Cornelius, OR and surrounding areas

Approved

In business since 2014

Free estimates

Customers say: Quality work

"Project Details: Custom cedar fence with gates Replace large concrete pad Replace front door Replace basement windows Update exterior facade of entryway Overall, we had a very good experience working with Ryan and his team. We love the work they did. They charged a fair rate and did the work in a timely manner. We will likely hire Performance again for future work. Communication: Ryan was easy to work with. He answered all of our questions and presented us with clear options and recommendations when needed. He even answered my questions that were unrelated to the projects we had going on. Quality of work: We were fortunate to have Ryan doing most of our work. He took his time and made sure every detail was addressed properly, from making seamless transitions on the fence to making custom moulding for our door. Scope and Cost: There were no surprises. Ryan kept us updated on the timeline at all stages and discussed how any changes to the original plan would impact cost. Our quote only went up from what was originally estimated because we made changes to materials and processes. Hiccups: Unfortunately, not everything went perfectly. After significant delays in getting our basement windows (no fault of Performance), the windows were sloppily installed by some of the team. Fortunately, Ryan came out reviewed the work and fixed everything at no extra cost. Now the windows look and work great."
Response time12 hrs
1 neighbors recently requested a quote
Recommended by85%of homeowners
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Showing 1-10 of 203
Basement Remodel questions, answered by experts

Building up by adding square footage to the top of your home is often less expensive than adding a basement, but it depends on the specifics of your house, your property, and supply costs. Because building a basement requires excavation, it can be a more expensive option than building up.

It’s less expensive to finish your basement than it is to build an addition to your home. The average cost to refinish a basement is $32,000 (between $7 and $23 per square foot) while building an addition to your home costs $50,325 ($80 to $210 per square foot). Depending on the size of your basement and other factors, like moving plumbing and electrical, refinishing a basement is a more cost-effective option in most cases.

Roughing in and connecting utilities are the hardest parts of finishing a basement, and they’re the parts we typically don’t recommend doing as a DIY project. Unfortunately, your finishing timeline can be extended by weeks while you wait for contractors and inspectors to install electrical wiring, plumbing lines, and heating/cooling equipment and carry out inspections.

While framing a basement is not as difficult as finishing a basement, it's something you should typically leave to the pros. That’s because if something is installed correctly, it will affect your entire basement. However, you can take care of some of the smaller tasks, like filling holes or putting up some insulation.

Yes, most general contractors require an initial down payment. A reasonable deposit is typically between 10% and 25% of the total project cost, although this can vary by project size and location. This upfront payment helps the contractor cover initial costs like materials, permits, licensing, and hiring subcontractors. The remaining balance is usually billed according to a schedule outlined in your contract, often tied to project milestones or completion dates. Be cautious of contractors who ask for a large deposit of 50% or more, as this could be a red flag for a scam.

The Cornelius, OR homeowners’ guide to basement remodels

From average costs to expert advice, get all the answers you need to get your job done.