*The Angi rating for Basement Remodel companies in Fullerton, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Remodel needs.
*The HomeAdvisor rating for Basement Remodel companies in Fullerton, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Remodel needs.
Last update on August 17, 2025
Serving Fullerton, CA and surrounding areas
Approved
In business since 2019
Free estimates
Credit card accepted
"I had my garden and bathroom remodel done. Albert and Samuel were professional, friendly, and a delight to work with. They're responsive and reliable. I also like the subcontractors whom they used on my project. They kept me informed of everything and I appreciate their excellent work."
Serving Fullerton, CA and surrounding areas
Approved
In business since 2017
Free estimates
Customers say: True professional
"We hired McCormick Home Builders to remodel our living room, and we are beyond pleased with the result. The team was professional, worked efficiently, and Aris design ideas made a huge difference. The room feels so much brighter and more spacious. This was the best decision we made for our home, and we were already planning our next remodel with them."
+1
Serving Fullerton, CA and surrounding areas
Approved
In business since 1986
Free estimates
Emergency services offered
"Absolutely perfect, perfection workmanship, with amazing professionalism."
+99
Serving Fullerton, CA and surrounding areas
Approved
In business since 2011
Free estimates
Credit card accepted
"After experiencing extensive water damage that impacted six rooms across two floors of our home, we were overwhelmed and unsure where to start. Hiring EC_Construction was the best decision we could have made. From day one, they were professional, responsive, and incredibly knowledgeable. They handled every aspect of the restoration process with care and attention to detail, making a stressful situation so much easier for our family. The quality of the work exceeded our expectations — our home honestly looks even better than it did before the damage. The crew was respectful, punctual, and kept us informed throughout the entire project. They worked efficiently while still maintaining exceptional craftsmanship, and it was clear they genuinely cared about getting everything done the right way. If you are looking for a trustworthy, skilled, and dependable general contractor, I cannot recommend them highly enough. We are beyond grateful for the amazing job they did restoring our home."
+11
Serving Fullerton, CA and surrounding areas
Approved
In business since 2006
Free estimates
Credit card accepted
"I worked with Daniel and he was very prompt and responsive, did exactly what he said he'd do. He worked underneath the house in an area I couldn't access. Took and showed me pics to illustrate the issues and he worked excellently."
Serving Fullerton, CA and surrounding areas
Approved
In business since 2010
Free estimates
Offers commercial services
"He was on top of everything. Before we finalized everything he had all the research done and pulled all requirements."
Serving Fullerton, CA and surrounding areas
Approved
Credit card accepted
Hi, my name is Steven with Big Boys Construction. We are a locally owned and operated company serving the High Desert and surrounding areas. We specialize in a wide range of residential services including painting, flooring, drywall, concrete, and general home improvements.\n\nOur goal is simple — deliver quality work, honest pricing, and reliable service you can count on. We take pride in treating every home like it’s our own, with attention to detail and proper preparation from start to finish.\n\nWhether it’s a small repair or a full renovation, we are committed to making the process smooth and stress-free for our customers. We look forward to earning your business and bringing your vision to life.\n
Serving Fullerton, CA and surrounding areas
Approved
In business since 1988
Free estimates
Small jobs welcome
"He is very trustworthy and friendly. Work done in a neat and timely manner."
+3
Serving Fullerton, CA and surrounding areas
Approved
In business since 2018
Free estimates
Offers commercial services
"Shu and his crew did a great job. They protected my staircase and created barriers to separate the work and the rest of the house. They were always on time and they did a great job. Very pleased w the workmanship and the result. Can’t go wrong w Shu. A reliable contractor."
Serving Fullerton, CA and surrounding areas
Approved
In business since 2019
Free estimates
Credit card accepted
RSF Construction Inc. is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!
Unless you have extensive experience in construction work, remodeling a basement is best left to a professional. There are several tasks associated with this project that require exact precision, including:
Replacing insulation
Replacing carpet or other flooring
Adding heating and cooling
Adjusting or adding walls and doors
Altering or adding plumbing elements
If any of these elements is done incorrectly, it could severely impact the quality of your basement remodel and be dangerous. Changing a basement often comes with code safety requirements, like egress windows and proper ventilation. Therefore, leaving it up to a professional is often the best decision.
The cost to finish a basement is $18,400 for the average homeowner. However, this cost could be as little as $2,800 or as much as $34,500, depending on the basement size and the materials needed. If your basement is already outfitted with electrical and plumbing, expect the cost to fall on the lower end.
For example, the drywall cost for this project averages around $1,750, but other features, like hiring a plumber, cost between $45 and $200 per hour.
The cost to remodel a basement is between $12,100 and $33,400 for the average homeowner. The price you pay can be as little as $3,500 or as much as $50,200, depending on the size and condition of your basement and the type of remodel you're doing.
If you're doing a simple project like adding a home office to your basement, you can expect to pay anywhere from $500 to $3,000. However, if you're adding a bathroom, which is an extensive project, you can expect to pay between $6,600 to $16,500.
Since DIYing a basement remodel isn't typically advised, there are some ways that you can still save money on this project without putting yourself in danger. Some ways to save money on a basement remodel include:
Painting walls yourself versus including in the cost of the remodel
Installing light fixtures yourself
Choosing prefabricated fixtures, like cabinets, over custom ones
Choosing a budget-friendly flooring option, like laminate or vinyl flooring, and add rugs where necessary
Although homeowners often use the terms basement remodeling and basement finishing interchangeably, they are quite different terms.
Finishing a basement is the process of taking a basement space that is not habitable and adding elements to make it usable. This includes adding plumbing, flooring, and insulation.
Remodeling a basement means taking an already existing finished basement and changing it, often by adding or removing walls, adding plumbing, or changing the existing flooring.
From average costs to expert advice, get all the answers you need to get your job done.
An unfinished basement has a lot of potential. So, how much does it cost to finish a basement in Los Angeles, CA? Read on for all cost factors.
Need to fix basement water problems or safeguard your home in Los Angeles, CA from damage in the future? Use this basement waterproofing cost guide to budget appropriately.
The first step toward a cozy finished basement is adding its framing. How much does it cost to frame a basement? Let's break down the numbers.
Unlock the basement of your dreams by following these eight tips for a smooth and professional DIY basement remodel.
If your home’s basement is forgettable, consider turning it into a place you’ll love to showcase instead. Try these cellar renovation ideas at your home.
Thinking about a basement renovation? Here’s a master checklist to get your project started off right.
