Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in your area

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.

Addition to existing structure builders in Loomis

Showing 1-10 of 965
Avatar for 2T Inc
2T Inc
5061 Cedar Dr
5.00(
2
)
Approved Pro
2T Inc
5061 Cedar Dr
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2 years of experience

2T Inc is committed to excellence in every aspect of our business. We uphold a standard of integrity and respect bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers and our customers being able to trust us not only in your home or business but with completing your projects or services 2 a T. Many years of accumulated accurate knowledge of our trade, combined with ability, is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business, so call us today!

"Dan is professional, reliable, personable, and very skilled. He is also thorough and fair in his pricing. I canâ  t recommend him enough! He is my go-to guy without question when I have an issue in my home."

Michelle M on September 2023

2T Inc is committed to excellence in every aspect of our business. We uphold a standard of integrity and respect bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers and our customers being able to trust us not only in your home or business but with completing your projects or services 2 a T. Many years of accumulated accurate knowledge of our trade, combined with ability, is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business, so call us today!

"Dan is professional, reliable, personable, and very skilled. He is also thorough and fair in his pricing. I canâ  t recommend him enough! He is my go-to guy without question when I have an issue in my home."

Michelle M on September 2023


Avatar for Weber Builders
Weber Builders
108 Tuscan Grove Ct.
4.44(
10
)
Approved Pro
Weber Builders
108 Tuscan Grove Ct.
4.44(
10
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
39 years of experience

With more than 40 years of experience the Sacramento area the experts at Weber building are your trusted experts for all your home needs. Specialized in bringing any addition to your home to life, we are prepared for any demand that your project may have, and any issues that may arise. Being hyper-focused on additions to existing homes means that we are here to help you adapt to the changes in life, while still keeping the amazing look of the home you love. We are here to help you with the complete process, from planning to construction, we are your home town experts for your construction needs. Give us a call today and lets start planning how to make your home even better!

"the work done by the Weber was excellent . we were satisfied and i highly recommend them,"

sophy k on March 2020

With more than 40 years of experience the Sacramento area the experts at Weber building are your trusted experts for all your home needs. Specialized in bringing any addition to your home to life, we are prepared for any demand that your project may have, and any issues that may arise. Being hyper-focused on additions to existing homes means that we are here to help you adapt to the changes in life, while still keeping the amazing look of the home you love. We are here to help you with the complete process, from planning to construction, we are your home town experts for your construction needs. Give us a call today and lets start planning how to make your home even better!

"the work done by the Weber was excellent . we were satisfied and i highly recommend them,"

sophy k on March 2020


Avatar for HouseIdea
HouseIdea
PO Box 404
5.00(
10
)
Approved Pro
HouseIdea
PO Box 404
5.00(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
19 years of experience

Welcome to HouseIdea! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!

"HouseIdea's patient and informative approach made the remodeling process easy for first-time homeowners like us. Their attention to detail and commitment to our preferences and lifestyle resulted in an outstanding whole-house remodel."

Corinne W on March 2023

Welcome to HouseIdea! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!

"HouseIdea's patient and informative approach made the remodeling process easy for first-time homeowners like us. Their attention to detail and commitment to our preferences and lifestyle resulted in an outstanding whole-house remodel."

Corinne W on March 2023


Avatar for Ridgeway Construction, Inc.
Ridgeway Construction, Inc.
6906 Coronation Court
4.88(
12
)
Approved Pro
Ridgeway Construction, Inc.
6906 Coronation Court
4.88(
12
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

Ridgeway Construction Inc is a family owned and operated General B licensed construction company serving the Greater Sacramento area. We specialize in decks, siding, dry rot repairs and remodels but as a General B Licensed Contractor - CSLB Lic. 1083145 - we do everything from fencing, painting, and concrete to French drains and everything in-between whether it's big or small. We do most of the work ourselves and, whether it's our own crew on the job or one of our personally vetted subcontractors, our GC Mike physically oversees all work to ensure consistency of excellence and even puts on his own bags. If you happen to have a project outside of our wheelhouse, or if we feel like we are not a good fit, we will always point you in the right direction. Give us a call today, we look forward to earning your business!

"Excellent he took care of all of my concerns and was able to tackle a project that other handymen would not even return my calls for. Thanks"

Kevin S on September 2021

Ridgeway Construction Inc is a family owned and operated General B licensed construction company serving the Greater Sacramento area. We specialize in decks, siding, dry rot repairs and remodels but as a General B Licensed Contractor - CSLB Lic. 1083145 - we do everything from fencing, painting, and concrete to French drains and everything in-between whether it's big or small. We do most of the work ourselves and, whether it's our own crew on the job or one of our personally vetted subcontractors, our GC Mike physically oversees all work to ensure consistency of excellence and even puts on his own bags. If you happen to have a project outside of our wheelhouse, or if we feel like we are not a good fit, we will always point you in the right direction. Give us a call today, we look forward to earning your business!

"Excellent he took care of all of my concerns and was able to tackle a project that other handymen would not even return my calls for. Thanks"

Kevin S on September 2021


Avatar for K-Ray Construction
K-Ray Construction
4505 Northglen ST
New on HomeAdvisorNew on Angi
Approved Pro
K-Ray Construction
4505 Northglen ST
New on AngiNew on HomeAdvisor
Approved Pro
4 years of experience
Free onsite estimate

Welcome to K-RAY CONSTRUCTION. We work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.

Welcome to K-RAY CONSTRUCTION. We work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.


Avatar for Marksman Builders, Inc.
Marksman Builders, Inc.
645 Geraldson Rd.
4.81(
14
)
Approved Pro
Marksman Builders, Inc.
645 Geraldson Rd.
4.81(
14
)
Approved Pro
Customers say: Quick response
42 years of experience

Marksman Builders Inc has been building in Placer, Nevada, and El Dorado counties since 1983. We are a fully licensed and insured contracting business. Our specialty is residential construction - custom homes and remodels. We work with local designers to help clients achieve home plans that meet their needs and expectations. We also are glad to give a price quotation on existing plans. Having 37 years of building experience in the Gold Country we realize the special conditions and challenges of construction in the area. We make a commitment to staying up to date on code changes and new technologies within the building industry. Please feel free to contact us with any questions you may have.

"Over the years I have worked with several contractors/builders and Marksman Builders has been the best. They delivered on every aspect of our complete older home remodel. Last summer we started with just ideas on a piece of paper and Emma and her team worked with the designer, engineer to retain the charm of our older home and give it an open modern look. The entire process from obtaining building permits to the final details were professionally completed within the estimated timeline and budget. As the project took shape we had several change orders that were seamlessly integrated into project. Friends, family, and other building professionals have commented on how “awesome” our new house looks. Marksman Builders is now building a very custom engineered carport and garage for us with the same professionalism and attention to every detail. I was not sure it could even be built given the terrain and larger granite boulders. They simply incorporated the boulders in the build."

Brian S on April 2025

Marksman Builders Inc has been building in Placer, Nevada, and El Dorado counties since 1983. We are a fully licensed and insured contracting business. Our specialty is residential construction - custom homes and remodels. We work with local designers to help clients achieve home plans that meet their needs and expectations. We also are glad to give a price quotation on existing plans. Having 37 years of building experience in the Gold Country we realize the special conditions and challenges of construction in the area. We make a commitment to staying up to date on code changes and new technologies within the building industry. Please feel free to contact us with any questions you may have.

"Over the years I have worked with several contractors/builders and Marksman Builders has been the best. They delivered on every aspect of our complete older home remodel. Last summer we started with just ideas on a piece of paper and Emma and her team worked with the designer, engineer to retain the charm of our older home and give it an open modern look. The entire process from obtaining building permits to the final details were professionally completed within the estimated timeline and budget. As the project took shape we had several change orders that were seamlessly integrated into project. Friends, family, and other building professionals have commented on how “awesome” our new house looks. Marksman Builders is now building a very custom engineered carport and garage for us with the same professionalism and attention to every detail. I was not sure it could even be built given the terrain and larger granite boulders. They simply incorporated the boulders in the build."

Brian S on April 2025


United Services
1130 Lincoln Way, Suite 5
4.66(
52
)
Approved Pro
United Services
1130 Lincoln Way, Suite 5
4.66(
52
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
10 local quotes requested

We have been serving Auburn and Sacremento Valley for more than 25 years, we specialize in ADUs) -auxillary dwelling units,- new additions, and garages. we focus on you and your project. Call today, you'll be glad you did.

"Glenn and his crews built an ADU for me in less than 3 months. His subcontractors were clean, friendly and professional. Their work was exceptional. They worked some of the hottest days of the year in July and August to ensure that the job was done in a timely manner. The job foreman was prompt to ask my opinion and ensure that my wishes were accomplished. The crews were well aware of the regulations for constructing an ADU and met the regulations in a timely manner. All permits were signed in a timely manner, inspections were scheduled in a timely manner and crews were ready and in attendance. I would definitely recommend Glenn and his crews to anyone planning projects large or small. I would hire him again for similar projects."

Marilyn S on December 2024

We have been serving Auburn and Sacremento Valley for more than 25 years, we specialize in ADUs) -auxillary dwelling units,- new additions, and garages. we focus on you and your project. Call today, you'll be glad you did.

"Glenn and his crews built an ADU for me in less than 3 months. His subcontractors were clean, friendly and professional. Their work was exceptional. They worked some of the hottest days of the year in July and August to ensure that the job was done in a timely manner. The job foreman was prompt to ask my opinion and ensure that my wishes were accomplished. The crews were well aware of the regulations for constructing an ADU and met the regulations in a timely manner. All permits were signed in a timely manner, inspections were scheduled in a timely manner and crews were ready and in attendance. I would definitely recommend Glenn and his crews to anyone planning projects large or small. I would hire him again for similar projects."

Marilyn S on December 2024


RSF Construction Inc.
6910 Monte Verde Drive
New on HomeAdvisorNew on Angi
Approved Pro
RSF Construction Inc.
6910 Monte Verde Drive
New on AngiNew on HomeAdvisor
Approved Pro
223 local quotes requested
6 years of experience

RSF Construction Inc. is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

RSF Construction Inc. is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!


Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
23445 Haynes Street
4.25(
18
)
Approved Pro
McCormick Home Builders, Inc.
23445 Haynes Street
4.25(
18
)
Approved Pro
Customers say: True professional
234 local quotes requested
8 years of experience

MCCORMICK HOME BUILDERS INC We’re a locally owned and operated company that values honesty and integrity and treats your home or business as if it were our own. We are experts in all aspects of roofing projects and our services are customizable to each individual project. We specialize in both installations and replacements. 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!

"We recently remodeled our bathroom with McCormick, and it was a fantastic experience. Khaled was informative, patient, and genuinely helpful, guiding us through choices for a perfect design. The team’s professionalism showed in their punctuality and quality. Every aspect was done with care, from tile placement to lighting. The transformation is truly impressive; the bathroom now feels open and luxurious. We’re beyond pleased with the result and look forward to more projects with them."

Geoffrey C H on January 2025

MCCORMICK HOME BUILDERS INC We’re a locally owned and operated company that values honesty and integrity and treats your home or business as if it were our own. We are experts in all aspects of roofing projects and our services are customizable to each individual project. We specialize in both installations and replacements. 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!

"We recently remodeled our bathroom with McCormick, and it was a fantastic experience. Khaled was informative, patient, and genuinely helpful, guiding us through choices for a perfect design. The team’s professionalism showed in their punctuality and quality. Every aspect was done with care, from tile placement to lighting. The transformation is truly impressive; the bathroom now feels open and luxurious. We’re beyond pleased with the result and look forward to more projects with them."

Geoffrey C H on January 2025


Ward & Son Construction
654 Reginald
4.94(
20
)
Approved Pro
Ward & Son Construction
654 Reginald
4.94(
20
)
Approved Pro
Customers say: Terrific value
26 years of experience
Free onsite estimate

Ward & Sons construction is committed to quality, professional building and remodeling of residential homes. They only work with homeowners, so they know what homeowners' issues are. For the finest in workmanship at competitive pricing, call Ward & Sons Construction.

"This was one of the best experiences i have ever had with a contractor. He has a wonderful crew, they are polite, respectful, thoughtful and hard working. They built us a beautiful family room. Demolished the existing patio and built us a family room. They were willing to work with us on timing: we have a special needs son and worked around his schedule to help keep him comfortable. They do high quality work, very professional and was able to keep everything in our budget. We are extremely happy with this experience from start to finish!!"

Regina G on June 2022

Ward & Sons construction is committed to quality, professional building and remodeling of residential homes. They only work with homeowners, so they know what homeowners' issues are. For the finest in workmanship at competitive pricing, call Ward & Sons Construction.

"This was one of the best experiences i have ever had with a contractor. He has a wonderful crew, they are polite, respectful, thoughtful and hard working. They built us a beautiful family room. Demolished the existing patio and built us a family room. They were willing to work with us on timing: we have a special needs son and worked around his schedule to help keep him comfortable. They do high quality work, very professional and was able to keep everything in our budget. We are extremely happy with this experience from start to finish!!"

Regina G on June 2022

...
Showing 1-10 of 965

Addition to existing structure building services FAQs

Building an in-law suite takes between two and seven months. Converting an existing basement, attic, or room can be done in about two months. Constructing a new addition or detached suite often takes four to five months for construction, plus one to two months for permits. The bigger the suite, the longer it will take. 

Yes, you can build an in-law suite in your backyard if you meet local building codes and zoning regulations. An in-law suite often occupies 300 to 800 square feet. Be sure to follow size restrictions, utility separations, and entrance requirements. Hiring a qualified contractor ensures you meet all regulatory requirements because they can pull permits, double-check local code, and gather other skilled pros to work on your suite. 

The 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.
BRIGHT OPEN ATTIC SPACE
Apr 24, 2025
Apr 24, 2025
An in-law suite is a great solution for people who have family visiting often. Explore how much an in-law suite costs and prep to build yours.
A white wood ceiling
Apr 23, 2025
Apr 23, 2025
Looking to vault a ceiling? Here’s how much it costs, what factors affect cost, and what to expect.
Outdoor view of the modern house
Apr 22, 2025
Apr 22, 2025
Explore how square footage, room type, home additions, and other common factors affect house renovation costs with our detailed cost guide.
A rustic wooden cabin in the woods
Apr 21, 2025
Apr 21, 2025
Discover how much a log cabin costs to build, exploring how factors like its size, site prep, utilities, finishes, and labor rates affect the total price.
CONTRACTOR LOOKING OVER HOME DEVELOPMENT
Apr 19, 2025
Apr 19, 2025
Budget for your general contractor’s hourly rate by considering factors such as project scope, fee structure, pricing model, and more.
stucco home with cracks from earthquake damage
Apr 16, 2025
Apr 16, 2025
Work out the full cost to repair earthquake damage based on the type of damage, including foundation issues, utility lines, and cracked walls.
Share project details to get started.