Basement Remodeling Contractors Serving Beaverton, Oregon

If you’re like many Beaverton homeowners, your basement may currently serve as little more than storage space. But with the right design and construction plan, your basement can become one of the most comfortable and versatile areas in your home.

A well-designed basement remodel can add hundreds of square feet of usable living space, increasing both your home’s functionality and long-term value.

At Lamont Bros. Design & Construction, we help homeowners throughout Beaverton transform unfinished or outdated basements into fully integrated living spaces that feel like a natural extension of the home. Our design-build team manages the entire process, from planning and permitting to construction, so your project stays organized, predictable, and enjoyable.

Whether you want a media room, guest suite, home office, gym, or multi-purpose family space, our team will help you design a basement that fits your lifestyle.

Why Choose Lamont Bros. for Your Beaverton Basement Remodel

Choosing the right remodeling contractor is critical for a successful project.

Lamont Bros. is a design-build remodeling company serving the entire Portland metro area, including Beaverton.

Homeowners choose our team because of our:

  • Design-Build Expertise: One integrated team manages design, planning, and construction.

  • Award-Winning Craftsmanship: Our work has earned industry recognition including national remodeling awards.

  • Proven Experience: Since 2008, our team has completed hundreds of remodeling projects across the Portland region.

  • Client Satisfaction: We maintain consistently strong client reviews across multiple platforms.

Our goal is to create a basement space that looks beautiful, functions perfectly, and adds long-term value to your home.

Why Beaverton Homeowners Remodel Their Basements

Beaverton homes often include partially finished or unfinished basements that offer significant renovation potential. Remodeling these spaces allows homeowners to expand their living space without changing the footprint of the home.

Some of the most common reasons Beaverton homeowners remodel their basements include:

  • Creating More Living Space: A finished basement can become a family room, entertainment space, or playroom that reduces crowding in the main living areas.

  • Adding a Guest Suite: Basements are ideal for creating comfortable guest accommodations or in-law living spaces.

  • Building a Home Office: With remote work more common than ever, many Beaverton homeowners are converting basements into quiet, dedicated workspaces.

  • Increasing Home Value: Finished basements often deliver strong return on investment because they add livable square footage without requiring a home addition.

  • Creating Multi-Purpose Rooms: Many modern basement remodels include several uses in one design—such as a media room, bar area, and home gym.

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Meet Our Beaverton Basement Remodeling Team

 

How Much Does a Basement Remodel Cost in Beaverton?

Basement remodeling costs vary depending on the size of the space, the complexity of the design, and the type of features included.

Typical basement remodeling projects in the Portland metro area fall into three categories:

Basement Finishing:

  • $75,000 – $125,000

  • Basic finishing of an unfinished basement with walls, flooring, lighting, and insulation.

Custom Basement Remodel:

  • $150,000 – $200,000

  • Includes bathrooms, guest suites, or significant layout changes.

Structural or Foundation Remodel:

  • $250,000+

  • Major structural work such as raising ceilings or converting crawlspaces into full basements.

During the design phase, our team helps you explore options that align with both your goals and your budget.

For a personalized cost assessment, try our cost calculator:

Basement Remodel Cost Calculator
Lamont Bros. Design & Construction

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Frequently Asked Questions

How long does a basement remodel take?

Most basement remodeling projects take 3–6 months, depending on the scope, design complexity, and permitting requirements.

Do I need permits for a basement remodel in Beaverton?

Yes. Most basement remodels require permits for electrical, plumbing, structural changes, or adding bedrooms with egress windows.

Most basement remodeling projects in Beaverton require permits through the City of Beaverton Building Division. Permits may be required for electrical work, plumbing, structural changes, adding bedrooms with egress windows, or installing bathrooms. A professional design-build contractor typically manages the permitting process and ensures the project meets local building codes.

Can I add a bathroom to my basement?

Yes. Adding a basement bathroom is common, though it often requires plumbing work beneath the concrete slab.

What's the best flooring for basements?

Water-resistant materials such as luxury vinyl plank, tile, or sealed concrete perform well in below-grade spaces.

Will finishing my basement increase my home value?

Finished basements often provide strong return on investment by increasing usable square footage.

Can my basement become a rental unit?

Some basements can be converted into separate living spaces, though local zoning and building codes determine whether rentals are allowed.

What if my basement has moisture problems?

Moisture issues must be resolved before finishing. Waterproofing and drainage improvements are typically part of the remodeling plan.

Do Beaverton homes commonly have unfinished basements?

Yes, many homes in Beaverton—especially those built between the 1970s and early 2000s—include partially finished or unfinished basements. These spaces are often used for storage but can be remodeled into comfortable living areas such as family rooms, guest suites, or home offices. Remodeling an unfinished basement is one of the most efficient ways to add usable square footage to a Beaverton home.

Do basements in Beaverton need special waterproofing?

Because the Portland metro area experiences significant rainfall each year, basement remodeling projects in Beaverton often include moisture control strategies. These may involve foundation waterproofing, improved exterior drainage, sump pumps, vapor barriers, or upgraded ventilation systems. Addressing moisture issues before finishing the space helps ensure the basement remains comfortable and durable long term.

What ceiling height is required for a finished basement in Oregon?

Oregon building codes generally require finished basement ceilings to be at least 7 feet high, although some exceptions may apply for beams, ductwork, and certain existing conditions in older homes. If ceiling height is limited, design strategies such as strategic lighting, open ceilings, or partial structural adjustments may help create a more spacious feel.

Is a basement remodel or home addition better for Beaverton homeowners?

For many homeowners in Beaverton, remodeling a basement is more cost-effective than building a home addition because the foundation and structure already exist. Basement remodels typically require fewer structural changes and can add significant living space without altering the home’s footprint. However, the best option depends on your home’s layout, basement condition, and long-term goals.

The Lamont Bros. Difference

Award Winning Craftsmanship

Lamont Bros. has earned recognition as a multi-award-winning Portland design-build firm, including the NARI Remodeler of the Year award and Houzz Best Service every year since 2016.

Client-Verified Excellence

Lamont Bros. maintains a 4.8-star average rating across Google, Houzz, and Yelp, reflecting consistent client satisfaction across hundreds of completed remodeling projects.

20 Years of Experience

Since 2008, Lamont Bros. has completed 850+ remodeling projects across the Portland metro area, including kitchens, bathrooms, additions, and ADUs in Portland, Beaverton, Lake Oswego, West Linn, and Oregon City.