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Find Addition to existing structure builders in Sunnyvale

Avatar for Dynamicz Construction, Inc.
Dynamicz Construction, Inc.
5.0(
85
)

Serving Sunnyvale, CA and surrounding areas

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 OT Bay Builders
OT Bay Builders
5.0(
109
)

Serving Sunnyvale, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Warranties offered

"We needed more space for our growing family, and the addition they built blends in seamlessly with our original home. From permits to the finishing touches, everything was handled professionally. It’s like it was always meant to be part of the house!"
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%
1 neighbors recently requested a quote
Avatar for Herman Construction Company
Herman Construction Company
5.0(
22
)

Serving Sunnyvale, CA and surrounding areas

Approved

In business since 2000

Free estimates

Credit card accepted

"Karol is a very nice guy to work with. He is approachable, easy to communicate with. He goes through the project from end to end on our first visit, explain how he would build the frame, cut the wood, the timeline. He also finds a stone guy and coordinates the work. When actually doing the work, he puts cardboards on our floor to avoid scratching. Upon request, he also did a prototype for us, and when we change our mind to use a different style, he redoes the bulk of the project. I would recommend Karol to anyone who needs carpenter work!"
Home Addition
Home Addition
Home Additon
Home Additon
Home Addition

+25

Response time7 hrs
Recommended by81%of homeowners
Avatar for Tool Time Home Improvement
Tool Time Home Improvement
4.6(
206
)

Serving Sunnyvale, CA and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"I was delighted with the customer service, professionalism, and speed in responding to and completing my project for assembling a Murphy Bed. I will certainly keep this company in my 'go-to' contacts list and highly recommend you give them a try! Thanks so much!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+16

Response time1 day
15 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Future Vision Remodeling
Future Vision Remodeling
4.9(
57
)

Serving Sunnyvale, CA and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

"Future Vision Remodeling is one of the most professional companies I have dealt with. Not only are the project managers punctual and knowledgeable, their office staff are diligent and handle any problem to the best of their ability. I would highly recommend hiring them for any project."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+555

Response time7 hrs
Response rate100%
10 neighbors recently requested a quote
Avatar for Skytech Builders
Skytech Builders
5.0(
21
)

Serving Sunnyvale, CA and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"As most of us know when we do a remodeling project, it is real hard to find good and honest people to complete your project. Fortunately, I found Leo and Yonathan from SkyTech Builders to help me with remodeling and repairing two of the bathrooms in my family's 4-Plex building. They were very honest, polite and helpful each step of the process from start to finish. The are very patient and suggested materials and design but always thinking about quality and your budget. Overall the experience with Leo and Yonathan was top notch and we were very satisfied with the finished product. We will definitely be using Sky Tech Builders for our future construction projects."
Master Bathroom Remodel in San Jose.
Kitchen Remodel in San Mateo
Kitchen remodeling in Fremont
Master Bathroom Remodel in San Jose.
Kitchen Remodel in San Mateo

+63

Response time1 day
31 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Herman Construction Company
Herman Construction Company
5.0(
29
)

Serving Sunnyvale, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Free estimates

Warranties offered

"Karol worked as general contractor for our home remodel, which involved adding a second story on an existing single family home. Karol managed the project very skillfully, keeping it within budget and our timeline. I was particularly impressed by his integrity and we eventually came to trust him for looking out for it interests. When our initial drywall subcontractor was overbilling us and frequently absent from the job, Karol promptly called out the actions and terminated the contact. He helped us find good workarounds for some issues involving our kitchen cabinets and a new outdoor deck."
Second floor House addition in progress. San Jose
second floor house addition before San Jose
Second floor house addition complete
second floor house addition in progress
2 neighbors recently requested a quote
Recommended by72%of homeowners
Avatar for BE HOME REMODELING INC
BE HOME REMODELING INC
4.9(
66
)

Serving Sunnyvale, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"After they redid our counter tops and island, we had them paint out cabinets and build shelves up to the ceiling. The communication was on point this time and the results speak for themselves. Would definitely recommend them to anyone for any home project."
full house remodeling
full house remodeling
full house remodeling
full house remodeling
full house remodeling

+31

Response time1 day
Response rate98%
635 neighbors recently requested a quote
Avatar for Bay Easy Construction
Bay Easy Construction
4.3(
154
)

Serving Sunnyvale, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Warranties offered

"Excellent experience. The price was fair, Ofer was very flexible and responsive to what we needed, and his team were punctual, professional, and efficient. When other contractors would take days to respond and provide estimates, Ofer always got back to me in a couple of hours at most. Adding the skylight took only two days, and the only additional cost was for the skylight itself (about 200$) and paint (about 40$)."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+13

Response time10 hrs
8 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for On Design & Remodeling INC
On Design & Remodeling INC
5.0(
46
)

Serving Sunnyvale, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Credit card accepted

"We just finished to build an ADU in the backyard with ON Design & Remodeling. In the beginning we met Aviv and he guided us with his team along the design process. They helped us to get the permit faster and choosing all the visible materials before starting the work. During the construction we received weekly updates regards the process so we always knew what to expect. We build the unit for my parents and they are so happy with their new small home, and to share the yard together with us. Currently we are in the planning process to remodel our main resident kitchen with ON team, so obviously we are so happy working with this amazing team."
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%
39 neighbors recently requested a quote
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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.