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Find Addition to existing structure builders in Sunnyvale

Avatar for Green Mark Build, LLC

Green Mark Build, LLC

1717 Main Street, Suite 5630
4.80(
5
)
Approved Pro

Green Mark Build, LLC

1717 Main Street, Suite 5630
4.80(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 years of experience

We specialize in additions and kitchen remodels, but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"The Best !"

Chieko M on April 2018

We specialize in additions and kitchen remodels, but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"The Best !"

Chieko M on April 2018


Avatar for GNF Contractors

GNF Contractors

PO Box 1372
4.36(
7
)
Approved Pro

GNF Contractors

PO Box 1372
4.36(
7
)
Approved Pro
Customers say: Quick response
5 years of experience
Free onsite estimate

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"Substandard work still owe me money"

Mike C on February 2022

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"Substandard work still owe me money"

Mike C on February 2022


Avatar for Quality Work By Ron

Quality Work By Ron

3511 CR 2310
5.00(
4
)
Approved Pro

Quality Work By Ron

3511 CR 2310
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
234 local quotes requested

I have been in the remodeling/construction for over 35 years and love what I do. Quality and reasonable prices is what we offer. We build new construction. Kitchen and Bathroom remodeling, concrete, roofing, floors and Sheetrock & painting is just a little what we do. We specialize in room & garage conversions. So, if you want Quality work with reasonable prices, give me a call.

"Ron and crew are experienced, straight forward and good to work with"

David T on February 2025

I have been in the remodeling/construction for over 35 years and love what I do. Quality and reasonable prices is what we offer. We build new construction. Kitchen and Bathroom remodeling, concrete, roofing, floors and Sheetrock & painting is just a little what we do. We specialize in room & garage conversions. So, if you want Quality work with reasonable prices, give me a call.

"Ron and crew are experienced, straight forward and good to work with"

David T on February 2025


Avatar for Together Design and Build, LLC

Together Design and Build, LLC

6000 S. CONGRESS AVENUE, SUITE 101
5.00(
7
)
Approved Pro

Together Design and Build, LLC

6000 S. CONGRESS AVENUE, SUITE 101
5.00(
7
)
Approved Pro
12 local quotes requested
5 years of experience

Together Design and Build is a full-service home remodeling company based in Austin, TX. We specialize in kitchen and bathroom remodels, room additions, and full-home renovations. From concept to completion, we deliver high-quality craftsmanship using premium materials from trusted suppliers. Our team of skilled designers and contractors brings even the most complex ideas to life with precision and care. Founded by two passionate builders, we believe construction is more than just business?it?s about creating spaces that improve lives. Every project is personalized, and every client is a partner. Whether it?s your dream kitchen or a full-home transformation, we?re ready to help you love your home again. Call us today at 833-383-2289.

"I had a great experience with Together Design & Build , they remodeled my bathroom and did a beautiful job. Connected me with a designer to help review the design and materials, and the renovation was completed on schedule and at a fair price."

Chen m on July 2025

Together Design and Build is a full-service home remodeling company based in Austin, TX. We specialize in kitchen and bathroom remodels, room additions, and full-home renovations. From concept to completion, we deliver high-quality craftsmanship using premium materials from trusted suppliers. Our team of skilled designers and contractors brings even the most complex ideas to life with precision and care. Founded by two passionate builders, we believe construction is more than just business?it?s about creating spaces that improve lives. Every project is personalized, and every client is a partner. Whether it?s your dream kitchen or a full-home transformation, we?re ready to help you love your home again. Call us today at 833-383-2289.

"I had a great experience with Together Design & Build , they remodeled my bathroom and did a beautiful job. Connected me with a designer to help review the design and materials, and the renovation was completed on schedule and at a fair price."

Chen m on July 2025


Avatar for GH Complete Construction Services

GH Complete Construction Services

16135 Preston Rd
5.00(
37
)
Approved Pro

GH Complete Construction Services

16135 Preston Rd
5.00(
37
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
51 local quotes requested

G.H. Complete Construction Services has been in the construction business 20+ years serving Dallas and surrounding the areas. We are a General Contractor specializing in a full range renovations for the residential customer. Our residential business include room additions, baths, kitchen remodeling, general carpentry, painting, siding replacement, etc. We also are specialist in fire and water restoration. Some of our commercial/industrial specialties include retail build out, office spaces, carpentry, painting, fire and water restoration. We also renovate multifamily property renovations. In addition to the above we have experienced iron and concrete workers. G.H. Complete Construction Services is available to handle any size job. Email address: info@gh-cs.com

"We have used GH Construction Services several times for various projects and continue to be impressed with the quality of work and level of professionalism."

Marc A on January 2023

G.H. Complete Construction Services has been in the construction business 20+ years serving Dallas and surrounding the areas. We are a General Contractor specializing in a full range renovations for the residential customer. Our residential business include room additions, baths, kitchen remodeling, general carpentry, painting, siding replacement, etc. We also are specialist in fire and water restoration. Some of our commercial/industrial specialties include retail build out, office spaces, carpentry, painting, fire and water restoration. We also renovate multifamily property renovations. In addition to the above we have experienced iron and concrete workers. G.H. Complete Construction Services is available to handle any size job. Email address: info@gh-cs.com

"We have used GH Construction Services several times for various projects and continue to be impressed with the quality of work and level of professionalism."

Marc A on January 2023


Avatar for Diamond Edge Construction

Diamond Edge Construction

115 B East St
4.86(
7
)
Approved Pro

Diamond Edge Construction

115 B East St
4.86(
7
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
600 local quotes requested

At Diamond Edge Construction, we're dedicated to raising the bar in construction across Texas. As experienced general contractors, we specialize in commercial construction and multifamily development, while also bringing our expertise to custom home projects. Our team takes pride in delivering high-quality workmanship that stands the test of time. We approach every project with meticulous attention to detail, ensuring that each element meets our exacting standards. Our commitment goes beyond just building structures; we focus on understanding and fulfilling our clients' visions, providing innovative solutions to meet their unique needs. Whether it's a large-scale commercial development or a custom home, we strive to complete every project efficiently, on schedule, and at a fair price. With Diamond Edge Construction, clients can expect reliable communication, transparent processes, and results that consistently exceed expectations. Our versatility, combined with our unwavering commitment to quality and client satisfaction, sets us apart in the construction industry. https://www.thebluebook.com/iProView/1869647/

"Is working out perfectly."

Todd M on January 2025

At Diamond Edge Construction, we're dedicated to raising the bar in construction across Texas. As experienced general contractors, we specialize in commercial construction and multifamily development, while also bringing our expertise to custom home projects. Our team takes pride in delivering high-quality workmanship that stands the test of time. We approach every project with meticulous attention to detail, ensuring that each element meets our exacting standards. Our commitment goes beyond just building structures; we focus on understanding and fulfilling our clients' visions, providing innovative solutions to meet their unique needs. Whether it's a large-scale commercial development or a custom home, we strive to complete every project efficiently, on schedule, and at a fair price. With Diamond Edge Construction, clients can expect reliable communication, transparent processes, and results that consistently exceed expectations. Our versatility, combined with our unwavering commitment to quality and client satisfaction, sets us apart in the construction industry. https://www.thebluebook.com/iProView/1869647/

"Is working out perfectly."

Todd M on January 2025


Avatar for Dwell+Develop+Design Inc

Dwell+Develop+Design Inc

6505 W Park Blvd Suite 306-281
5.00(
3
)
Approved Pro

Dwell+Develop+Design Inc

6505 W Park Blvd Suite 306-281
5.00(
3
)
Approved Pro
39 years of experience
Free onsite estimate

Dwell+Develop+Design has proudly served its customers with pride and integrity for 39 years. We are residential construction company specializing in remodeling and additions. We offer a turnkey service, including architectural plans, permits, and the entire construction process start to finish.

"We recently completed a full remodel project with Trey and Bob at Dwell Develop and Design, and the results were absolutely phenomenal. Every inch of the remodel reflects exceptional quality and attention to detail — it turned out even better than we imagined! From start to finish, Trey and Bob went above and beyond. The customer service was outstanding throughout, and their professionalism and craftsmanship are second to none. What really set them apart was how they welcomed our creativity — they truly allowed us to dream big and brought our visions to life with precision and care. We’re so impressed that we’ve already partnered with them again for our upcoming double garage and MIL apartment project. If you’re looking for a team that listens, collaborates, delivers top-tier work, and makes the entire process enjoyable, Trey and Bob at Dwell are the ones to call. We highly, highly recommend!"

Marsha N on August 2025

Dwell+Develop+Design has proudly served its customers with pride and integrity for 39 years. We are residential construction company specializing in remodeling and additions. We offer a turnkey service, including architectural plans, permits, and the entire construction process start to finish.

"We recently completed a full remodel project with Trey and Bob at Dwell Develop and Design, and the results were absolutely phenomenal. Every inch of the remodel reflects exceptional quality and attention to detail — it turned out even better than we imagined! From start to finish, Trey and Bob went above and beyond. The customer service was outstanding throughout, and their professionalism and craftsmanship are second to none. What really set them apart was how they welcomed our creativity — they truly allowed us to dream big and brought our visions to life with precision and care. We’re so impressed that we’ve already partnered with them again for our upcoming double garage and MIL apartment project. If you’re looking for a team that listens, collaborates, delivers top-tier work, and makes the entire process enjoyable, Trey and Bob at Dwell are the ones to call. We highly, highly recommend!"

Marsha N on August 2025


Avatar for Dash Contracting

Dash Contracting

5.00(
1
)
Approved Pro

Dash Contracting

5.00(
1
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
26 local quotes requested

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customization to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!

"Perfectly!"

Corby R on August 2024

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customization to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!

"Perfectly!"

Corby R on August 2024


"Elliott did an amazing job! We were looking for a kitchen demo and new drywall so we could have cabinets installed. Elliott was very thorough with his assessment of the room and made sure the job was done right. He notified us of problems he found along the way and managed to keep us in our budget. We will definitely be using Loviolette Enterprises in the future!"

Daniel W on January 2024

From the initial design process to construction completion, we consider ourselves humble guests in your home, and as such respect your personal privacy and space. Classic Restoration of your home. Full service.

"Elliott did an amazing job! We were looking for a kitchen demo and new drywall so we could have cabinets installed. Elliott was very thorough with his assessment of the room and made sure the job was done right. He notified us of problems he found along the way and managed to keep us in our budget. We will definitely be using Loviolette Enterprises in the future!"

Daniel W on January 2024


Avatar for Cusolito Property Solutions

Cusolito Property Solutions

3710 Rawlins St Ste 950
5.00(
5
)
Approved Pro

Cusolito Property Solutions

3710 Rawlins St Ste 950
5.00(
5
)
Approved Pro
Customers say: Quick response
2 years of experience
Free onsite estimate

You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!

"Jon came out very quickly, provided photos, including drone shot of roof damage and provided a quick estimate. The job was done the next day and service was great."

Luke W on August 2024

You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!

"Jon came out very quickly, provided photos, including drone shot of roof damage and provided a quick estimate. The job was done the next day and service was great."

Luke W on August 2024

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FAQs for addition to existing structure building service projects in Sunnyvale, TX

Yes, hidden rooms are legal, as long as they meet all local building regulations. If you sell your house, most states require homeowners to disclose full houseplans, which would include any hidden rooms.

If your secret room is a safe room, it should contain a means of communication aside from a cell phone, such as a shortwave radio. You should also have plenty of drinking water, a portable generator, emergency food supplies, blankets, pillows, flashlights, batteries and a first aid kit.

Any time you update your home’s square footage, you increase its value, but a secret room is a niche feature that doesn't rank high on every buyer’s list of must-haves. Investing your money in remodeling more common living areas like bedrooms, bathrooms, or kitchens will have a higher ROI than adding a secret room. Many secret rooms can act as entertainment spaces (think a game room or wine cellar) or quiet spaces (a library or study), so when building your secret room you may want to consider its versatility for when you’re ready to sell.

The Sunnyvale, TX 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.

  • A renovated kitchen with a waterfall island

    HomeAdvisor’s DIY Kitchen Remodel Cost Guide looks at the cost of buying supplies and doing the work yourself. Find the key cost factors and how to cut expenses.

  • Secret room within bookcase

    HomeAdvisor's expert guide walks you through the cost to build a secret room, whether you're creating a safe room for security or a fun space to fulfil your childhood fantasies. Use this guide to help plan your secret room project and explore room, concea

  • outdoor patio bar

    Explore the cost to build a bar in your home and learn how materials, wet vs. dry bars, and labor costs influence the total price of your project.