How Much Does It Cost to Finish a Basement in Denver, CO? [2026 Data]

For homeowners looking to finish a basement in Denver, CO, costs exceed national averages, with factors like materials, size, and local labor rates affecting the final price. The cost to finish a basement in Denver, CO, ranges between $15,870 and $79,350, with an average project cost of $33,856.

Several factors determine the overall project price, including the basement size, the level of finish, and any moisture-control or structural issues. Labor rates in the Denver, CO, area, as well as permits and building codes, also impact the final budget. Homeowners may also need to budget for additional comforts, such as bathrooms, wet bars, or built-in storage, to achieve their desired functionality.

Finishing a Basement Cost Factors 

The overall cost of finishing a basement in Denver, CO, varies based on several key factors, including the project size, selected materials, and any egress or waterproofing requirements. Let’s explore how these elements influence the final budget.

Project Scope

Your final basement finishing cost relies on your starting point. In some cases, you might not even have an unfinished basement to work with, so you’ll have to factor in the cost to build one. On the other hand, you might already have a built or semi-built space that just needs remodeling to turn it from an unfinished to a finished basement.

Square Footage

Basement finishing costs vary by size, with larger spaces increasing total project costs.

Basement finishing costs about $45 to $100 per square foot in Denver, CO, so the larger the space, the more you’ll spend to turn it into a cozy den or welcoming guest suite. A smaller, 500-square-foot basement will cost $25,000 to $50,000, while a larger, 1,500-square-foot basement will cost significantly more.

Materials

The materials you choose will play a major role in your overall basement finishing cost, with prices varying based on quality, durability, and design preferences.

Higher-end materials and finishes will raise your total cost, while standard options help keep the project within budget, so it’s important to balance where to spend and save.

Sump Pump Installation

A sump pump will cost around $450 to $2,600 to install. This system is crucial for, you guessed it, pumping out large volumes of water that might accumulate from rain, a bad plumbing day, or any other event that could lead to flooding.

Waterproofing

To avoid soggy stuffed animals and wet carpet, waterproofing your basement will cost an additional $4,800 on average, or about $3 to $10 per square foot. Your final basement waterproofing cost depends on the method you use and the extent of work required. Depending on your local climate, there may be a best time of year to finish your basement, since waterproofing can’t always be done in all temperatures. For the best results, find a basement waterproofing contractor near you.

General Contractor Costs

In Denver, CO, it’s important for homeowners to budget for labor, permitting, insurance, and other location-specific expenses that can impact the final project total. Here are some costs to consider when hiring a Denver, CO, basement finishing pro.

Labor

Labor is a major portion of the total project budget for finishing a basement in Denver, CO, often accounting for 45% to 70% of the overall cost, depending on the basement size, finish level, and whether structural work is needed. General contractors in the Denver, CO, area charge between $70 and $140 per hour, or roughly $10,000 to $50,000 or more per project, depending on complexity, square footage, and whether plumbing or egress work is needed.

General contractors are the primary professionals responsible for managing basement finishing projects from start to finish. They coordinate all phases of the remodel, from framing and drywall to painting and flooring installation. In Denver, CO, these pros are also familiar with local building code requirements, snow-load considerations, radon mitigation requirements, and inspection processes. They help homeowners navigate design decisions, material selection, and scheduling while ensuring the finished basement meets all local safety and permitting standards.

Additional Pros to Consider Hiring 

Based on the scope of your basement finishing project, you may need to involve additional pros to ensure the work is completed safely, efficiently, and up to code. Below are a few specialists to consider depending on your home’s specific needs:

• You may need an electrician if your basement project includes new outlets, lighting, or a bathroom. Electricians in Denver, CO, charge $70 to $140 per hour, depending on the complexity of the work and whether panel upgrades, rewiring, or code compliance updates are required.

• If you’re adding or relocating a bathroom, wet bar, or laundry area, you may need a plumber. Local plumbers charge an average of $80 to $150 per hour, with additional costs for fixtures, piping, and the existing plumbing layout.

• Drywall specialists or finishers help create smooth, properly finished walls and ceilings, especially in new basement builds or major repairs. In Denver, CO, finisher rates range from $60 to $120 per hour, depending on surface condition and the level of finish required.

Permits

Acquiring the necessary building permits will add $600 to $2,500 of your total cost to finish a basement. Some municipalities will charge permit fees of 0.5% to 1.5% of your basement remodel project. A general contractor will usually include this in your service package, but if you’re handling the building yourself, be sure to factor it into your budget.

Does Finishing a Basement Increase Home Value?

In Denver, CO, finishing a basement can be a valuable investment, especially in homes with large unfinished lower levels that are common throughout the metro area. Industry estimates suggest that a professionally finished basement can deliver a return on investment (ROI) of about 60% to 75%, depending on the quality of finishes, layout design, and added features such as bathrooms, wet bars, or additional bedrooms.

A finished basement also adds meaningful usable living space, often transforming an unfinished area into a family room, home office, or guest suite. In a competitive and growing housing market such as Denver, CO, this added square footage can increase home value, improve overall home functionality, and help support a higher resale value when it comes time to sell

How Angi Gets Its Local Cost Data 

To help homeowners plan their next project, Angi provides readers with carefully researched cost data and upholds strict editorial standards. We start with national average project costs, which we collect by analyzing competitor information, retailer material costs, and input from professional contractors. We then apply local price index data to calculate location-specific estimates that reflect what homeowners typically pay in their local area. To do that, we use data from the U.S. Bureau of Economic Analysis (BEA), including its Regional Price Parities (RPPs), which measure price differences across cities. This helps us account for differences in labor, materials, and overall cost of living, so estimates in higher- or lower-cost areas better reflect real-world local pricing.

Every estimate undergoes a thorough editorial review to verify accuracy, consistency, and alignment with observed market conditions.

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