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Find Addition to existing structure builders in Altadena

Avatar for KN Remodeling & Supplies Inc
KN Remodeling & Supplies Inc
4.8(
62
)
Addition to Existing Structure - Build

Serving Altadena, CA and surrounding areas

Approved

In business since 2012

Free estimates

Warranties offered

"We worked with Nathan to remodel our first house this year. As first-time renovators and first-time home owners, it was a daunting task. Nathan made us feel very well taken care of he has a strong attention to detail, and we felt we knew what we were getting throughout the project. We settled on a price up front for all of the labor, with the promise that even if things came up during the project, Nathan would take care of the complications without changing the price. He kept that guarantee. We ended up expanding our job to include other work, but all of the initial work was done at the promised price with no surprises. We are now living in our renovated house, and we love it. I couldn't imagine organizing such a huge project myself, and we're deeply grateful to have had someone as reliable as Nathan taking care of everything!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+48

Response time8 hrs
Response rate100%
8 neighbors recently requested a quote
Avatar for So Cal Builders & Design Inc
So Cal Builders & Design Inc
4.6(
294
)
Addition to Existing Structure - Build

Serving Altadena, CA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1982

Free estimates

Warranties offered

"Avi from So Cal Builders & Design Inc was our general contractor for our house's addition/expansion. This is the 2nd time we worked with Avi and his team, after he helped us completely remodeled our existing house, we know he is the perfect guy for our phase II of building the addition to our house. Again, Avi is so great to work with! He is very knowledgable on all construction related work and he is always available to help with whatever. He is able to come up with super creative solutions for all our requests/wants, we couldn't be happier with the work from So Cal Builders & Design Inc! My city is pretty strict come to all different types of code, Avi was amazing at managing all the city requests for us, I am glad that he helped with all that stuff for us so we didn't have to worry about anything. The work itself is truly awesome, and Avi and his team are here for us even when the work is completed when we need anything. I completely trust Avi and will for sure recommend him to anyone!"
Completely renovating both the guest and master bathrooms. In the master bathroom, we're installing a spacious walk-in shower featuring dual black-finished shower heads, elegant floating benches, and marble wall tiles. Meanwhile, the guest bathroom will have a sleek built-in tub and stylish hexagon tiles.
This project involved adding a new master bathroom to the existing house. The shower features sleek white subway tiles complemented by striking black fixtures and shower door hardware. The bathroom floor is adorned with elegant white marble tiles, providing a seamless and luxurious finish. A white shaker vanity topped with a white marble countertop completes the space, creating a clean and sophisticated look.
Experience a whole new level of indoor-outdoor living with the Torres Residence Backyard Remodel. This project highlights the addition of a kitchen sliding door, seamlessly merging your interior and exterior spaces
We remodeled the current kitchen, incorporating the addition of a new sliding door to establish a seamless indoor-outdoor living area
New pool with Baja bench and spa. New pavers, aluminum patio cover and built-in BBQ in the backyard

+563

36 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Creative Home Remodeling Group Inc.
Creative Home Remodeling Group Inc.
4.7(
257
)
Addition to Existing Structure - Build

Serving Altadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2003

Free estimates

Warranties offered

"If you need an addition built on your house, I'd highly recommend you give Creative Remodeling a call. We used them to add a master suite which makes our house much more livable. We've also decided to add decking in the back yard off the the back of the house. Oh, and this was after working with them during Covid on a kitchen and 2 bathrooms. So that makes us repeat, on repeat, on repeat customers. The work is quick, to a good quality, and they listen to what the customer wants and have dealt with the odd snafu without any push back. Highly recommended."
Complete Kitchen with White and Blue Cabinets
Complete Kitchen Modern Kitchen With Botcher Island
posses of the kitchen remodeling
Modern ADU, large space with studio and 1 bathroom, big windows
White Kitchen Cabinets

+427

Response time1 day
Response rate100%
25 neighbors recently requested a quote
Avatar for Construction Masters
Construction Masters
4.7(
316
)
Addition to Existing Structure - Build

Serving Altadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1988

Free estimates

Emergency services offered

"Construction Masters just finished building an additional room in my home as well as building a bathroom from scratch. I am completely blown away! I had very specific plans when it came to this room addition and new bathroom. They met and exceeded all of my expectations. If you’re planning any kind of construction in your home and you want a company that is respectful, skilled, and timely you should give them a call. My house has become my dream home. I'm really enjoying it!"
Our Assorted Work
Our Assorted Work
Our Assorted Work
Our Assorted Work
Our Assorted Work

+51

Response time8 hrs
1 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for HA My Design, Inc.
HA My Design, Inc.
5.0(
378
)
Addition to Existing Structure - Build

Serving Altadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Customers say: True professional

"I hired Golan and H&A My Design to build an addition to my house. Golan was very professional, helpful, communicative and honest. He listened to my suggestions and gave me some great advices. The project was finished ahead of schedule and I am completely satisfied with the outcome. Highly recommend Golan and H&A My Design!"
After
Kitchen Remodel+Fireplace
Complete Home Renovation
Complete Kitchen Remodel
Complete Kitchen Remodel

+526

Response time1 day
Response rate100%
4 neighbors recently requested a quote
Avatar for MF Construction & Design Inc
MF Construction & Design Inc
4.5(
82
)
Addition to Existing Structure - Build

Serving Altadena, CA and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"We used Mike and MF Construction a couple of years ago to remodel our kitchen. Everything went smoothly then, and we still love our kitchen, so when it came time to convert our garage into an office we called Mike. We are just as happy this time. Mike listened to our plans and made suggestions. He asked good questions to make sure we were going to get what we wanted. The main workers on our job, Luis and Jose, were great. They are very experienced and were easy to talk to and ask questions. Mike would come by just about every day, and and check on the progress, and fill us in on what to expect."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+30

Response time2 days
2 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Platinum Home Builders & Design, Inc.
Platinum Home Builders & Design, Inc.
5.0(
74
)
Addition to Existing Structure - Build

Serving Altadena, CA and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"Platinum home builders & design are great ! did an amazing job with our roof replacement and painting of our home. A previous contractor did shoty work and there was a lot of wood repair to be done. The roofers and painters did a great job. Itâ s like a new house again. Gilad, And the guys were there throughout the whole process. Highly recommend."
DRIP EDGE FLASHINGS
SURE NAIL TECHNOLOGY SHINGLE BY OWEN'S CORNING
TITANIUM UDL 50 UNDERLAYMENT
INSTALLATION OF NEW COOL ROOF SHINGLES
SYNTHETIC ROOFING UNDERLAYMENT

+80

Response time11 hrs
Response rate93%
Recommended by90%of homeowners
Avatar for Trig Builders, Inc.
Trig Builders, Inc.
4.9(
37
)
Addition to Existing Structure - Build

Serving Altadena, CA and surrounding areas

Approved

In business since 2004

Free estimates

Warranties offered

"We needed to do a kitchen remodel for a while now so we did a massive research online and by asking friends and family in our area. After meeting with all of them and explaining to them what are we looking for, what we want to do and mainly what is our budget. We received estimates from all the contractors that we met and we selected Trig Builders because Yossi was the most competitively priced and the referrals that we got on him and his company were very positive. Yossi and the workers were very easy people to work and to deal with and Yossi designed the kitchen exactly the way we wanted it with some nice additions of things that we didn’t think we will get. His suggestions about the new kitchen layout, where and what materials to buy were very helpful. Also, his advises and recommendation on where to buy the cabinets, lightings, plumbing and appliances saved us a lot of money. The end result of the new kitchen was perfect and one of the things that added a huge plus before we hired them was the warranty that included in the price of the work that they did."
Addition in Diamond Bar
Addition in Diamond Bar
Addition in Diamond Bar
Addition in Diamond Bar
Addition in Diamond Bar

+15

Response time7 hrs
Recommended by87%of homeowners
Avatar for Green Planet Remodeling
Green Planet Remodeling
5.0(
73
)
Addition to Existing Structure - Build

Serving Altadena, CA and surrounding areas

Approved

In business since 2013

Free estimates

Customers say: Quick response

"I hired Green Planet Remodeling for a room addition. I also received quotes from some other companies but offer from Green Planet Remodeling was most acceptable. The project went perfect, my project manager was very professional and informative, I always knew what was going on. They finished within promised time and was completely honest about everything else. The quality of their job is top notch. Thanks, will recommend to others!!"
Bathroom Remodeling
Bathroom Remodeling
Kitchen Remodeling
Kitchen Remodeling
Kitchen Remodeling

+35

Response time1 day
Response rate95%
Recommended by100%of homeowners
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FAQs for addition to existing structure building service projects in Altadena, CA

You can typically raise your roof by four to eight feet, depending on your home's structure and roof design. The exact amount depends on factors like roof slope and framing support. Raising the roof creates additional interior space, enhances natural light, and increases your home's value. Consult a professional to determine the feasible height increase for your home.

Yes, you need a building permit to raise your roof. Obtaining a building permit ensures your project complies with local building codes and safety regulations. A professional contractor can assist with the permit and inspection process and ensure all legal and safety requirements are met. Your contractor will be familiar with building codes in your area, which can differ between cities or states.

While it's possible to raise a flat roof, it requires extensive structural modifications. Flat roofs lack the attic space and support structures of pitched roofs, so raising them involves significant engineering to ensure safety and durability. This process can be complex and costly, so professional assessment is essential before undertaking a project of this magnitude.

The Altadena, CA homeowners’ guide to addition to existing structure building services

From average costs to expert advice, get all the answers you need to get your job done.