Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in Sunnyvale, CA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Addition to existing structure builders in Sunnyvale

Avatar for OT Bay Builders
OT Bay Builders
5.0(
77
)

Serving Sunnyvale, CA and surrounding areas

Angi Approved

Super Service Award Winner

In business since 2021

Free estimates

Warranties offered

"We love our new deck! It’s sturdy, beautiful, and adds so much value to our backyard. The team listened to what we wanted and delivered exactly that, right down to the custom railing and built-in seating."
Broadway Kitchen Remodel
Broadway Full Kitchen remodel
Broadway Full Kitchen remodel
San Francisco Contemporary Kitchen Remodel
San Francisco Contemporary Kitchen Remodel

+81

Response time12 hrs
Response rate98%
2 neighbors recently requested a quote
Avatar for Rose Remodeling & Design Inc.
Rose Remodeling & Design Inc.
5.0(
48
)

Serving Sunnyvale, CA and surrounding areas

Angi Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"We chose Rose Remodeling & Design for a room addition, and the experience was fantastic. The new space blends perfectly with our home, and the craftsmanship is excellent."
PHOTO ALBUM
PHOTO ALBUM
PHOTO ALBUM
PHOTO ALBUM
PHOTO ALBUM

+110

Response time6 hrs
Response rate94%
13 neighbors recently requested a quote
Avatar for Dynamicz Construction, Inc.
Dynamicz Construction, Inc.
5.0(
59
)

Serving Sunnyvale, CA and surrounding areas

Angi Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"With this team, my addition build turned out very well. The quality of their work is very good and we are happy at everything, they created everything that we wanted without hassle and the whole project went smoothly. "
Lafayette Home Remodel
Lafayette Home Remodel
Lafayette Home Remodel
Lafayette Home Remodel
Lafayette Home Remodel

+25

Response time1 day
Response rate99%
3 neighbors recently requested a quote
Avatar for Bay Remodeling Kitchen & Bath
Bay Remodeling Kitchen & Bath
5.0(
39
)

Serving Sunnyvale, CA and surrounding areas

Angi Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"I couldn't ask for a better company or result for my bathroom remodel. It started with my first meeting with Eli, who was very professional, concise and forthright in his presentation to me. It was my third estimate for the project, but.my decision was clear after meeting Eli. I love my new bathroom. The workers were excellent and always left everything neat after each day. The job was completed in 7 days, sooner than projected. Eli helped me with some of the tile choices and was patient when I asked many questions. Thank you so much, Eli"
Palo Alto full Home Remodel
Full Bathroom Remodel Mountain Veiw, CA
Portola Valley, CA
Bathroom Remodel in Palo Alto, CA
Bathroom Remodel San Jose, CA

+183

21 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for On Design & Remodeling INC
On Design & Remodeling INC
5.0(
38
)

Serving Sunnyvale, CA and surrounding areas

Angi Approved

Super Service Award Winner

In business since 2020

Free estimates

Credit card accepted

"I wanted to share my fantastic experience with ON Design & Remodeling during my recent bathroom remodeling project. The results are amazing, and I'm so grateful to Raz and Sofia. The bathroom now feels like a high-end spa, The tiles, fixtures, and overall design are top quality. Can't wait for future projects with ON Design & Remodeling! "
The Willow Oaks project
First floor kitchen and stairs
Master Bathroom remodeling
Open concept Kitchen
The Willow Oaks project

+399

Response time2 days
Response rate94%
35 neighbors recently requested a quote
Avatar for BE HOME REMODELING INC
BE HOME REMODELING INC
5.0(
13
)

Serving Sunnyvale, CA and surrounding areas

Angi Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"We recently had our bathroom remodeled by Be Home Remodeling, and I just wanted to share how happy we are with everything. Pouria, our project manager, was great — super organized, always kept us updated, and really listened to any concerns we had. Any time we needed something or had a question, he handled it right away. The crew (Manuel, Isaí )did an awesome job. They worked cleanly, were respectful of our home, and the quality of the work shows. The bathroom turned out even better than we expected, and we honestly love how everything came out. Overall, it was a really smooth experience, and we’d definitely recommend Be Home Remodeling and Pouria if you’re planning a remodel."
full house remodeling
full house remodeling
full house remodeling
full house remodeling
full house remodeling

+31

Response time1 day
Response rate98%
334 neighbors recently requested a quote
Avatar for Future Vision Remodeling
Future Vision Remodeling
4.0(
8
)

Serving Sunnyvale, CA and surrounding areas

Angi Approved

In business since 2013

Free estimates

Credit card accepted

"The bathroom remodel went well. The completed work was beautiful and completed on time. Especially great job on the tile work. Would definitely hire again"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+555

Response time7 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for WAVES REMODELING CALIFORNIA
WAVES REMODELING CALIFORNIA
5.0(
28
)

Serving Sunnyvale, CA and surrounding areas

Angi Approved

In business since 2021

Free estimates

Warranties offered

"Delighted with my new roof! From consultation to installation, the process was smooth. The team was professional and efficient, delivering both aesthetics and durability. Highly recommend for quality roofing."
shower remodel
Kitchen remodel
before
Kitchen remodel
garage remodel

+258

Response time2 hrs
Response rate100%
Recommended by96%of homeowners
...
Showing 1-10 of 79
FAQs for addition to existing structure building service projects in Sunnyvale, 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 Sunnyvale, 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.