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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 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 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


Avatar for Loviolette Enterprises

Loviolette Enterprises

7130 Water Supply Rd
4.68(
19
)
Approved Pro

Loviolette Enterprises

7130 Water Supply Rd
4.68(
19
)
Approved Pro
Customers say: Quality work
17 local quotes requested
32 years of experience

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

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 Centurion's Construction and Renovation LLC

Centurion's Construction and Renovation LLC

1880 Canton St
5.00(
2
)
Approved Pro

Centurion's Construction and Renovation LLC

1880 Canton St
5.00(
2
)
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!

"I am very satisfied with the service provided by Centurionâ s. Will definitely contract them for future projects."

Azucena V on December 2024

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!

"I am very satisfied with the service provided by Centurionâ s. Will definitely contract them for future projects."

Azucena V on December 2024


Avatar for A2A Remodeling Services

A2A Remodeling Services

11439 Lanewood Circle
2.00(
1
)
Approved Pro

A2A Remodeling Services

11439 Lanewood Circle
2.00(
1
)
Approved Pro
7 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! We epitomize dynamism and forward-thinking in the construction industry, driven by an unwavering commitment to excellence. With a wealth of industry experience, our team of dedicated professionals brings unparalleled expertise to every project we embark on. Our relentless pursuit of top-quality construction solutions sets us apart as a leader in our field.

"Do not hire this contractor, he is deceptive, dishonest, the depth of the fence post that I requested was bury 3 feet to sustain the life of an 8 foot board on board fence, the fence is barely buried 2 feet. The 24 ft gate fell on my utility shed due to there was no security guard stoppage to prevent the fence from sliding off the track, there is no footer to secure the gate, the track welded to the fence post & the track runs across the sod without concrete footer to secure & protect from movement & determination. Fence not properly stained, several boards cracking, bending & not properly nailed! The original look of the fence was visually appealing to the untrained eye, which I paid thinking he fulfilled the contract agreement, but in less than 2 weeks the flaws started showing right away! Several pickets are already splitting, fence spot stained on the interior as not enough was provided by Carlos Castillo the person who owns A2A Remodeling! Once he got paid he went silent. "

Jacqueline B on September 2025

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! We epitomize dynamism and forward-thinking in the construction industry, driven by an unwavering commitment to excellence. With a wealth of industry experience, our team of dedicated professionals brings unparalleled expertise to every project we embark on. Our relentless pursuit of top-quality construction solutions sets us apart as a leader in our field.

"Do not hire this contractor, he is deceptive, dishonest, the depth of the fence post that I requested was bury 3 feet to sustain the life of an 8 foot board on board fence, the fence is barely buried 2 feet. The 24 ft gate fell on my utility shed due to there was no security guard stoppage to prevent the fence from sliding off the track, there is no footer to secure the gate, the track welded to the fence post & the track runs across the sod without concrete footer to secure & protect from movement & determination. Fence not properly stained, several boards cracking, bending & not properly nailed! The original look of the fence was visually appealing to the untrained eye, which I paid thinking he fulfilled the contract agreement, but in less than 2 weeks the flaws started showing right away! Several pickets are already splitting, fence spot stained on the interior as not enough was provided by Carlos Castillo the person who owns A2A Remodeling! Once he got paid he went silent. "

Jacqueline B on September 2025


Avatar for Channell Landscape

Channell Landscape

Servicing Around
5.00(
9
)
Approved Pro

Channell Landscape

Servicing Around
5.00(
9
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
226 local quotes requested

Hello my name is Gavin Channell, owner and operator of Channell Landscape. Give me a call for a free estimate and let us earn your business with our professionalism and customer service. Our main services provided are: ~ Mowing, trimming of plants & trees. ~ Bush/tree removal ~ Yard treatment & fertilization ~ Custom landscape design & installation ~ Flower bed border & other stonework ~ Sprinkler repair ~ Drainage solutions (Pop-up drain emitters, French drain, etc.) Thank You!

"Great- already got quotes for additional work"

Jeffrey H on August 2024

Hello my name is Gavin Channell, owner and operator of Channell Landscape. Give me a call for a free estimate and let us earn your business with our professionalism and customer service. Our main services provided are: ~ Mowing, trimming of plants & trees. ~ Bush/tree removal ~ Yard treatment & fertilization ~ Custom landscape design & installation ~ Flower bed border & other stonework ~ Sprinkler repair ~ Drainage solutions (Pop-up drain emitters, French drain, etc.) Thank You!

"Great- already got quotes for additional work"

Jeffrey H on August 2024


Avatar for Expo Home Improvement

Expo Home Improvement

13859 Diplomat Dr
4.42(
113
)
Approved Pro

Expo Home Improvement

13859 Diplomat Dr
4.42(
113
)
Approved Pro
Customers say: Quality work
2467 local quotes requested
19 years of experience

Imagine loving every corner of your home. From a kitchen that feels fresh again, to a bathroom that finally works for your family, to windows that keep you comfortable through every Texas season. At Expo Home Improvement, we make remodeling feel simple and rewarding. Our team brings care, craftsmanship, and clear communication to every project, because how we show up matters just as much as what we build. Whether you're in Dallas-Fort Worth, Houston, Austin, San Antonio, or East Texas, we’re just around the corner and ready to help you love where you live. M-39963

"The Expo home came out, and they installed a step-in shower for the family; their work was excellent. We worked with Da'Monte, Kawin, and John, and they were very professional. We would recommend them to anyone needing this type of service."

Geri H on July 2025

Imagine loving every corner of your home. From a kitchen that feels fresh again, to a bathroom that finally works for your family, to windows that keep you comfortable through every Texas season. At Expo Home Improvement, we make remodeling feel simple and rewarding. Our team brings care, craftsmanship, and clear communication to every project, because how we show up matters just as much as what we build. Whether you're in Dallas-Fort Worth, Houston, Austin, San Antonio, or East Texas, we’re just around the corner and ready to help you love where you live. M-39963

"The Expo home came out, and they installed a step-in shower for the family; their work was excellent. We worked with Da'Monte, Kawin, and John, and they were very professional. We would recommend them to anyone needing this type of service."

Geri H on July 2025


Avatar for Complete Landscape and Design

Complete Landscape and Design

Mockingbird Lane
5.00(
8
)
Approved Pro

Complete Landscape and Design

Mockingbird Lane
5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1278 local quotes requested

Complete Landscape & Design is a professional landscape company providing residential and commercial service from the DFW area to Rockwall, TX. As landscape contractors, we specialize in creating or refurbishing outdoor spaces by installing trees, plant material, lawns, and constructing hardscape features such as paths, patios, retaining walls, or decks. We design, plan, and manage small to large projects for residential and commercial properties. We are committed to quality and are passionate about transforming any outdoor space into a beautiful haven for those that use it. Call or email us today for a free estimate!

"Ricky came out to quote that job. He was the only person to quote it had real suggestions for my yard. He and the team that he sent out where friendly and completed the job quickly. I have recommended Complete Landscape and Design to several others and will be using them again in the future."

Christopher R on February 2024

Complete Landscape & Design is a professional landscape company providing residential and commercial service from the DFW area to Rockwall, TX. As landscape contractors, we specialize in creating or refurbishing outdoor spaces by installing trees, plant material, lawns, and constructing hardscape features such as paths, patios, retaining walls, or decks. We design, plan, and manage small to large projects for residential and commercial properties. We are committed to quality and are passionate about transforming any outdoor space into a beautiful haven for those that use it. Call or email us today for a free estimate!

"Ricky came out to quote that job. He was the only person to quote it had real suggestions for my yard. He and the team that he sent out where friendly and completed the job quickly. I have recommended Complete Landscape and Design to several others and will be using them again in the future."

Christopher R on February 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.