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Home Additions In Altadena, CA

Maximize your living space and create a haven that meets everyone’s needs!

Home additions are exquisite home improvement projects that offer a multitude of benefits. They provide additional living space, cater to diverse needs, and significantly enhance the overall property value. 

Whether you’re adding a walk-out basement, an extra bathroom, a kitchen extension, or an entire second floor, these home improvement projects are sure to boost your home’s comfort and functionality. 

With CB Remodels, you’re ensured a reliable team of experts who are always ready to go the extra mile for your satisfaction. We bring our best to every job, and you’ll see that firsthand.

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Jorge Chavez – Owner of CB Remodels

Hi, I’m Jorge Chavez, the owner of CB Remodels. Through each remodeling project, we help you build a better future for your family. I’m here to be the best servant possible and get you an upgrade without too much stress and hassle in your day-to-day life. Your home is a place where you can be yourself – so I believe that feeling comfortable in your home is essential for your well-being.

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The Only Home Addition Service That's Worth Your Time

We know the challenges of dealing with generic contractor solutions that miss the mark. At CB Remodels, we’re dedicated to providing top-quality craftsmanship in Altadena, CA, and nearby areas. We’ll listen to your needs carefully and make sure everything we do aligns with your vision.

Find Your Right Addition In Our Portfolio

Explore our portfolio to discover the ideal addition that perfectly matches your requirements. If you’re unable to find precisely what you’re seeking, simply request a personalized quote.

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Owner of CB Remodels, Jorge Chavez, together with his wife and two kids

Interested in receiving a quote from us? Just click the button below, and we’ll get back to you within one business day with a pricing estimate for your upcoming addition. Alternatively, feel free to reach out to us directly at (626) 598-0833. We’re excited to assist you!

Altadena Community Knows True Craftsmanship

At CB Remodels, nothing brings us more joy than seeing our clients delighted by the remarkable transformation of their spaces. Join us as we share stories from satisfied customers.


Dyn Dy


We recently hired Chavez Brothers Construction to finish our room addition when our first contractor abandoned it.

We are very thankful that we hired them and we are also blessed to have Jorge and Mario. This team of workers were very professional, dependable, and skilled.

They were also fast, thorough, and kept us updated throughout the process. Above all, did a remarkable job. We will definitely hire them again.

Hope Adler


The nicest crew, kept to a timely and beautiful workman-like construction.

Easy access to get ahold of superintendent, kept informed at all times as to timelines and work performed. Very pleased with the outcome and quality. Would hire again.

Home Additions Cost In Altadena, CA

The starting price for home additions is typically around $250 to $275 per square foot for a basic construction. However, if the project involves a more customized scope of work, the cost range will increase depending on the complexity of the endeavor.

Room Addition Average Cost
Bedroom $17,000
Bathroom $54,000
Kitchen $17,500
Living room $30,000
Sunroom $25,000
Porch $4,300
Garage or shed $3,800
Additional story $145,000
Material Average price
Paint $15-$40 per gallon
Drywall $20-$30 per linear foot
Concrete $4-$8 per square foot
Steel beams $100-$400 per foot
Framing $4-$16 per square foot
Insulation $0.40-$2 per square foot

Take Stress Out Of Your Home Addition Project

Over the years, we’ve observed two common concerns that homeowners in Altadena often face when starting a home addition project. This is how we’ve tackled them.

With our financing options, kickstart your home addition project without financial burden. We’re committed to delivering a lasting, functional, and stunning addition that enhances your living space and maximizes your ROI.

Constructing an addition takes time, and though rushing may be tempting, it’s not advisable. We’re committed to giving you an accurate timeline and sticking to it until the project’s completion. If any unexpected issues arise, we’ll promptly inform you and work to minimize delays.

3-Step Home Additions For A Seamless Process

Stay well-informed at every step, with complete visibility into your expenditure. Our efficient process guarantees transparency for your home addition, ensuring a seamless and hassle-free journey.

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Get in touch with us, share your vision, and we’ll design the perfect home addition for your needs.

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We start working based on our timeline. You’ll have full control over everything.



After a final inspection, you can fully enjoy your home addition and our workmanship warranty!

Frequently Asked Questions

Do I need a permit to build an addition in Altadena, CA?

Obtaining permits is mandatory for all home addition projects. Our services encompass handling architectural plans, fees, and plan submissions. The homeowner assumes responsibility for the permit fees, which generally amount to approximately 10% of the valuation price.

Can I find materials on my own?

In our projects, we take care of acquiring all the materials needed to ensure a seamless execution of the trades and construction processes. During a consultation, you’ll have the chance to choose materials, finishes, colors, layout, and more, according to your preferences.

Do you offer financing?

We understand the challenges of securing funds for remodeling your dream home. That’s why we’ve partnered with Enhancify to offer you flexible and cost-effective monthly financing options, making it easier for you to finance any project. With quick access to up to $250k, no prepayment penalties, and no requirement for home equity, you can bring your home transformation to life with ease.
Completing your form takes a few seconds. Estimate your monthly payment and get your personalized offer at https://www.enhancify.com/cb-remodels.

How fast can you build an addition?

Once all plans and permits have been approved, a 100 sq. ft. addition or ADU in Pasadena can be constructed within a span of 2 months. For larger additions or ADUs of 800+ sq. ft., the construction duration typically ranges from 4 to 6 months. However, it’s important to note that the timeframe for plan approval and permit acquisition may vary due to local city processes and their inherent uncertainties.

Do I need to move out while you build my addition or ADU?

No, you won’t have to worry about finding alternative accommodations during the process, as additions and ADUs are either attached or detached structures that become a part of your home.

home additions cost in Pasadena guide

Bring Your Family Closer Together With An Addition

Transform your home into a haven of delight and convenience with exceptional additions that cater to your family’s daily life. Consider the inclusion of a second bathroom, an in-home office or gym, an additional bedroom, or a kitchen extension that doubles as a chic dining area.

If you’re ready to take the next step, don’t hesitate to contact us at (626) 598-0833 or simply click the button below to request a quote.

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Stefanie Estes


We worked with Jorge on a bathroom remodel and it was a wonderful experience. He is so professional, does fantastic work, and has great communication. His team is equally professional and reliable. Jorge and his team were always happy to answer questions and explain things to us.

Jorge checked in with us at the end of each day and let us know what the plan was for the following day’s work. When you are faced with a stressful remodel, having a contractor and a team that openly communicates and explains things to you is so helpful. They did amazing work on our bathroom and were always so friendly! Looking forward to working with Jorge and his team in the future!


Belle Mann


We have done a lot of renovations in several different houses over the years, and CB Remodels was among the very best we have worked with. They were very clear about what and how they were going to work, they were always there when they said they would be, and they did a beautiful job! 

They asked our opinions often and changed what they were doing according to our wishes. George and his crew were a delight to work with–we will call them again when we need any work done in our house. We feel so lucky to have worked with them, they made it easy and quick. 

They did all the work themselves, so there were no wasted days waiting for the subs to show up. Thank you George and crew for your great work!

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Altadena, CA, is a charming unincorporated area nestled in the San Gabriel Valley, just north of Pasadena. Known for its rich history and diverse culture, Altadena boasts several remarkable landmarks that add to its unique charm. These include the iconic Mount Lowe Railway, an abandoned scenic railway that once offered breathtaking views of the valley, and the beautiful Eaton Canyon, a natural area park renowned for its stunning waterfalls and vast network of hiking trails. Visitors and locals also enjoy the Christmas Tree Lane, the oldest large-scale Christmas lighting spectacle in the U.S., where Deodar Cedar trees are festively decorated each year.