Basement Finishing & Remodeling

From finishing basements to digging out crawlspaces, Lamont Bros. handles several Portland basement remodels each year.

The design-build process allows you to plan how you want your new basement to look and feel before moving into construction.

You’ll work with a professional design team to find custom solutions that not only satisfy your needs and fit your style but also meet your budget.

Basement Design & Space Planning

• Our designers create layouts that maximize usable square footage while improving flow, storage, and flexibility.
• We help define zones for living, work, guests, and utilities so the basement functions like a true extension of the home.

Family Rooms & Entertainment Spaces

• Create a comfortable lower-level hangout for movie nights, games, and everyday relaxing.
• Basement family rooms can include built-ins, media walls, fireplaces, or open layouts designed for gathering.

Guest Suites & Basement Bedrooms

• Add a private guest suite with a bedroom and bathroom for visitors or extended family.
• We plan for comfort, privacy, and code requirements like egress and ventilation.

Home Offices & Flex Spaces

• Build a quiet, dedicated space for working from home, hobbies, or multi-purpose use.
• Flex spaces are designed to adapt over time as your household needs change.

Basement Bathrooms & Wet Bars

• Improve convenience and functionality with an added bathroom, wet bar, or kitchenette-style setup.
• These upgrades require careful plumbing and electrical planning to perform reliably below grade.

Laundry Rooms & Storage Solutions

• Upgrade laundry areas and add smart storage to reduce clutter in the main living spaces.
• We design built-ins and utility zones that keep your basement organized and efficient.

Basement Waterproofing & Comfort Upgrades

• Address moisture control, insulation, and ventilation to keep the space dry and comfortable year-round.
• These behind-the-walls details are essential for durability and long-term performance.

Lamont Bros. Basement Remodeling Team

 

What Goes Into a Basement Remodel?

Basement remodels are different from above-grade renovations because they involve below-ground conditions, structural constraints, and comfort upgrades that determine how the space will perform long-term.

Finishing a basement successfully balances layout and design choices with moisture control, code requirements, and the right mechanical planning.

Moisture Control & Waterproofing

Because basements are prone to dampness, a basement remodel often starts with managing water intrusion and humidity. Proper waterproofing and drainage planning helps protect finishes and prevent future damage.

Ceiling Height & Structural Constraints

Basements may have low ceilings, beams, ductwork, or posts that influence the layout and design options. Planning around these elements early helps avoid awkward transitions and improves headroom where possible.

Insulation, Heating & Year-Round Comfort

Basements can feel cold or drafty without the right insulation and HVAC strategy. Comfort upgrades often include wall insulation, floor solutions, and heating plans that make the space feel like a true part of the home.

Egress & Safety Requirements

If you’re adding a bedroom or sleeping area, building codes typically require proper egress for emergency exit. This can involve egress windows or window wells designed to meet safety and access standards.

Electrical, Lighting & Power Planning

Basements benefit from strategic layered lighting plans given the often limited access to natural light. Electrical planning also includes outlets, dedicated circuits for media or office use, and safe integration with existing systems.

Plumbing & Bathroom Additions

Adding a basement bathroom, wet bar, or laundry upgrades requires careful plumbing coordination, especially below grade. This may include drain routing, venting, and planning for reliable long-term performance.

Layout, Storage & Functional Zones

A basement remodel works best when the layout supports multiple uses, such as entertainment, work, guests, and storage, without feeling cluttered. Thoughtful zoning makes the space more flexible and easier to live in.

Sound Control & Privacy

Basements are often used for media rooms, guest spaces, or home offices, where noise control matters. Sound-dampening strategies can improve comfort both in the basement and throughout the rest of the home.

My experience with Lamont Bros. was fantastic. They designed a brand new remodel of our basement, making sure that the architecture and design were exactly right.

The design and remodel process was clear and well managed. When we needed to make changes to the project, they were handled expertly and promptly.

We always had a clear line of communication with our project manager and designer.

I would absolutely recommend them to anyone looking to remodel their home.

– John R. | Google Review

Here's How The Design-Build Process Works:

1

Our design team creates the space of your dreams.

2

Our build team brings the vision to life.

3

You enjoy your new custom-built space.

 

Lamont Bros. | Basement Remodeling Project Gallery

Finished Basement Examples

These basement remodeling projects show how an underused lower level can become comfortable, functional living space that feels like a natural extension of the home.

Each remodel was designed around the homeowner’s goals, whether that meant creating a family room, guest suite, home office, or entertainment area, while addressing key basement challenges like lighting, comfort, and long-term durability.

The result is finished basements that are built to be lived in, not just looked at.

See more projects here: Basement Portfolio

Southwest Portland Flood Restoration
Whole Home

Southwest Portland Flood Restoration
Craftsman Style Basement
Basement

Craftsman Style Basement
Southwest-Inspired Basement Suite
Basement

Southwest-Inspired Basement Suite

Clackamas Crawlspace Conversion
Basement

Clackamas Crawlspace Conversion
Basement Family Room
Basement

Basement Family Room

Basement Apartment
Basement

Basement Apartment

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How much does a basement remodel cost?

Go to our cost calculator

Basement Remodeling FAQs

How do I know if my basement is a good candidate for finishing?

A good basement finishing project starts with evaluating moisture conditions, ceiling height, and access to utilities. If those fundamentals are workable, we can design a space that feels comfortable and performs well long-term.

 

Do I need waterproofing before I remodel my basement?

If there are signs of water intrusion, dampness, or humidity issues, it’s important to address them during a basement remodel. Moisture control is one of the biggest factors in whether a finished basement holds up over time.

 

Can I add a bedroom in my basement?

Often, yes. But basement bedrooms usually require code-compliant egress for safety. We help plan the layout around those requirements so the space is comfortable, functional, and approved through permitting.

 

What rooms are most popular in a finished basement?

Basements are great for family rooms, media spaces, guest suites, home offices, gyms, and play areas. The best layouts usually include a mix of open space and dedicated zones so the basement can adapt over time.

 

Can I add a bathroom, kitchen, or wet bar to my basement?

Yes, but below-grade plumbing needs careful planning for drains, venting, and reliable performance. We design these features so they function properly and integrate cleanly into the overall space.

 

What affects the cost of basement finishing?

Costs depend on factors like the size of the space, moisture mitigation needs, ceiling constraints, bathroom additions, and finish selections. We help you prioritize features and make smart tradeoffs so the basement fits your goals and budget.