Top-rated second story addition builders.

Get matched with top second story addition 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.

Second story addition builders in Inglewood

Avatar for Paramount Pavers & Construction
Paramount Pavers & Construction
19528 Ventura Blvd. #704
4.89(
200
)
Approved Pro
Paramount Pavers & Construction
19528 Ventura Blvd. #704
4.89(
200
)
Approved Pro
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
1482 local quotes requested

General contractor in Los Angeles and the surrounding counties since 2001. specialize in building Room Additions (Plans to Finish) doing major remodeling. emphasize on giving personal attention as well as working real close up with the customers. I believe in 100% service and respect to the customers. Our Services : Room Additions, Bathroom Remodeling, Landscape, Hardscape, Complete Remodeling, Kitchen Remodeling, New Construction, Exterior Remodeling, Interior Remodeling, Painting Contractor, Electrical Contractor, Patio Remodeling, Decks, Patios, Retaining Walls, Swimming Pools, Law Voltage, Cement Work, Concrete Work, Bathroom Renovation, Bathroom Installation, Bathroom Removal, Bathroom Remodeling Ideas, Bathroom Replacement, Kitchen Renovation, Kitchen Installation, Kitchen Repair, Kitchen Remodeling Ideas, Kitchen Replacement, Home Addition Contractor, Framing Contractor, Drywall Contractor, Plumbing Contractor, Home Remodeling

"Isaac and Rudy were a pleasure to work with. Communication was great! One, the other or both men were present on a regular basis. Crews were present, efficient, worked long hours and cleaned up everyday. Many details were addressed simply with a conversation or iniative by the crew. The project required multiple skills all provided by Paramount Pavers."

ralph a on July 2025

General contractor in Los Angeles and the surrounding counties since 2001. specialize in building Room Additions (Plans to Finish) doing major remodeling. emphasize on giving personal attention as well as working real close up with the customers. I believe in 100% service and respect to the customers. Our Services : Room Additions, Bathroom Remodeling, Landscape, Hardscape, Complete Remodeling, Kitchen Remodeling, New Construction, Exterior Remodeling, Interior Remodeling, Painting Contractor, Electrical Contractor, Patio Remodeling, Decks, Patios, Retaining Walls, Swimming Pools, Law Voltage, Cement Work, Concrete Work, Bathroom Renovation, Bathroom Installation, Bathroom Removal, Bathroom Remodeling Ideas, Bathroom Replacement, Kitchen Renovation, Kitchen Installation, Kitchen Repair, Kitchen Remodeling Ideas, Kitchen Replacement, Home Addition Contractor, Framing Contractor, Drywall Contractor, Plumbing Contractor, Home Remodeling

"Isaac and Rudy were a pleasure to work with. Communication was great! One, the other or both men were present on a regular basis. Crews were present, efficient, worked long hours and cleaned up everyday. Many details were addressed simply with a conversation or iniative by the crew. The project required multiple skills all provided by Paramount Pavers."

ralph a on July 2025


Avatar for Better Together Builders
Better Together Builders
7026 Rhea Ave
4.90(
134
)
Approved Pro
Better Together Builders
7026 Rhea Ave
4.90(
134
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
2129 local quotes requested

We are a full design build firm, specializing in kitchen, bathroom, and complete home remodeling. This also includes additions and ADU's! In the process of creating your dream home, our goal is to provide you with the most up-to-date ideas and solutions. A "one stop shop" for all your remodeling needs. Our team builds and remodels homes with various styles such as: traditional, Spanish, modern, contemporary and beyond. Call us today to get your in-home FREE consultation! Hand in Hand we will make this experience unique and successful. So let's make it Better together! Better Together Builders Lic#1047689 818-858-9840 Info@bettertogetherbuilders.com **Please note: Due to high demand, we are no longer able to do projects that are under a budget of $7000.**

"I want to express my gratitude for the fantastic work done by Better Together Builders and the crew on my ADU project. The team was highly professional and always arrived on time. They completed the project within the agreed-upon timeline without sacrificing quality or safety. I highly recommend these contractors to anyone looking for home renovation services. Thank you again for the outstanding job!"

Tyler Reynolds D on March 2023

We are a full design build firm, specializing in kitchen, bathroom, and complete home remodeling. This also includes additions and ADU's! In the process of creating your dream home, our goal is to provide you with the most up-to-date ideas and solutions. A "one stop shop" for all your remodeling needs. Our team builds and remodels homes with various styles such as: traditional, Spanish, modern, contemporary and beyond. Call us today to get your in-home FREE consultation! Hand in Hand we will make this experience unique and successful. So let's make it Better together! Better Together Builders Lic#1047689 818-858-9840 Info@bettertogetherbuilders.com **Please note: Due to high demand, we are no longer able to do projects that are under a budget of $7000.**

"I want to express my gratitude for the fantastic work done by Better Together Builders and the crew on my ADU project. The team was highly professional and always arrived on time. They completed the project within the agreed-upon timeline without sacrificing quality or safety. I highly recommend these contractors to anyone looking for home renovation services. Thank you again for the outstanding job!"

Tyler Reynolds D on March 2023


Avatar for Decoland, Inc.
Decoland, Inc.
5.00(
5
)
Approved Pro
Decoland, Inc.
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1235 local quotes requested

**Decoland Landscape & Construction Design DOES IT ALL** We were founded in 2007 with one goal in mind - to provide a FULL RANGE superior landscaping services, including landscaping, hardscaping and lawn maintenance, at affordable rates to the residents of Laguna Hills. Our company has grown over the years from a two person operation into a full staff of professionals able to meet your every landscaping need. We are dedicated to building long term relationships with our clients by providing the highest standard of quality on each and every project we do. Our reputation for customer satisfaction in the Laguna Hills area is what has made Decoland Landscape & Construction Design a household name in the industry. At Decoland Landscape & Construction Design, we understand that the outdoor aesthetic of your home or business is as important as your interior. We have a team of experts that will consult with you to determine your exact needs. From landscape maintenance to new construction, our residential and commercial clients in Laguna Hills know that when they call Decoland Landscape & Construction Design they will get the best. Contact us today for a FREE consultation and see the difference experience makes!

"Sean was fantastic. Not only did he help me create my Landscape vision but he walked me through the whole Process. He already knew all the HOA rules and guidelines. This was a no brainer in choosing him and Decoland to do my backyard. Anyone looking to do landscaping and/or any house remodeling should definitely look into using him. He’s already doing my other house right now. It’s coming out great."

Jr c on January 2025

**Decoland Landscape & Construction Design DOES IT ALL** We were founded in 2007 with one goal in mind - to provide a FULL RANGE superior landscaping services, including landscaping, hardscaping and lawn maintenance, at affordable rates to the residents of Laguna Hills. Our company has grown over the years from a two person operation into a full staff of professionals able to meet your every landscaping need. We are dedicated to building long term relationships with our clients by providing the highest standard of quality on each and every project we do. Our reputation for customer satisfaction in the Laguna Hills area is what has made Decoland Landscape & Construction Design a household name in the industry. At Decoland Landscape & Construction Design, we understand that the outdoor aesthetic of your home or business is as important as your interior. We have a team of experts that will consult with you to determine your exact needs. From landscape maintenance to new construction, our residential and commercial clients in Laguna Hills know that when they call Decoland Landscape & Construction Design they will get the best. Contact us today for a FREE consultation and see the difference experience makes!

"Sean was fantastic. Not only did he help me create my Landscape vision but he walked me through the whole Process. He already knew all the HOA rules and guidelines. This was a no brainer in choosing him and Decoland to do my backyard. Anyone looking to do landscaping and/or any house remodeling should definitely look into using him. He’s already doing my other house right now. It’s coming out great."

Jr c on January 2025


Avatar for Green Republic Landscape Design Services
Green Republic Landscape Design Services
P.o Box 5477
4.58(
48
)
Approved Pro
Green Republic Landscape Design Services
P.o Box 5477
4.58(
48
)
Approved Pro
Customers say: Quality work
854 local quotes requested
19 years of experience

Green Republic Landscapes is a premier landscape design-build firm dedicated to transforming outdoor spaces into stunning, functional environments. We specialize in creating customized landscaping solutions that reflect each client's unique vision and lifestyle. Our comprehensive services include: Garden Design and Installation, Expert Planting, Landscape Lighting, Irrigation Systems, Flagstone & Paver Installation and many other high-quality landscaping services. With extensive industry experience and a passion for excellence, GRL delivers results that consistently exceeds expectations. From the initial consultation to the final reveal, we ensure a smooth , enjoyable process-and an outdoor space you'll love for years to come. Let us bring your dream landscape to life. Minimum project investment: $5,000.00

"We couldn't be happier with our backyard project. Motti and Kimberly were just wonderful to work with. They were professional, knowledgeable, friendly, and attentive all throughout the process. They listened to our thoughts and educated us as to all our possibilities. Motti has a wonderful design eye and is so passionate about his work. We were very happy when we used them for the front of our house 4 years ago, this time around for the back, and we would use them again in the future. We recommend them highly."

Janice L on February 2022

Green Republic Landscapes is a premier landscape design-build firm dedicated to transforming outdoor spaces into stunning, functional environments. We specialize in creating customized landscaping solutions that reflect each client's unique vision and lifestyle. Our comprehensive services include: Garden Design and Installation, Expert Planting, Landscape Lighting, Irrigation Systems, Flagstone & Paver Installation and many other high-quality landscaping services. With extensive industry experience and a passion for excellence, GRL delivers results that consistently exceeds expectations. From the initial consultation to the final reveal, we ensure a smooth , enjoyable process-and an outdoor space you'll love for years to come. Let us bring your dream landscape to life. Minimum project investment: $5,000.00

"We couldn't be happier with our backyard project. Motti and Kimberly were just wonderful to work with. They were professional, knowledgeable, friendly, and attentive all throughout the process. They listened to our thoughts and educated us as to all our possibilities. Motti has a wonderful design eye and is so passionate about his work. We were very happy when we used them for the front of our house 4 years ago, this time around for the back, and we would use them again in the future. We recommend them highly."

Janice L on February 2022


Avatar for Buildwright Construction inc.
Buildwright Construction inc.
5.00(
10
)
Approved Pro
Buildwright Construction inc.
5.00(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1504 local quotes requested

At Buildwright Construction we're fully licensed, insured and bonded to perform construction in the state of California. We specialize in designing and remodeling: Complete home remodeling, custom kitchen remodel, full bathroom renovation, ADU, garage conversions, home addition and more! A one stop shop for all your remodeling needs. Our clients get a full service and guidance from our team before, during and after the project is completed. We transform kitchens, redesign bathrooms, convert garages to ADUs, add new rooms and perform a full house remodel that help carve out new space, add functionality, style and user-friendliness. For our clients to get a unique and successful experience, we invest in educating our team adherence to the Los Angeles Building and Safety rules and regulations while implementing the newest technologies. We offer a fully inclusive client-focused construction management experience. We earn our clients trust by remaining true to our foundation, our capability to suit the varied needs, styes and preferences of our clients. We are working together to reach the best possible remodeling outcomes. On each of our projects we have a team of professional craftsmen and experienced project managers to allow a solid workflow that accommodates complete support and communications with our clients. Call us today to get your in-home FREE consultation!

"Great. They did a very professional job from 1st interview to the contract to the completion of the job and their checking of the completion. I would use them again if needed."

David P on June 2025

At Buildwright Construction we're fully licensed, insured and bonded to perform construction in the state of California. We specialize in designing and remodeling: Complete home remodeling, custom kitchen remodel, full bathroom renovation, ADU, garage conversions, home addition and more! A one stop shop for all your remodeling needs. Our clients get a full service and guidance from our team before, during and after the project is completed. We transform kitchens, redesign bathrooms, convert garages to ADUs, add new rooms and perform a full house remodel that help carve out new space, add functionality, style and user-friendliness. For our clients to get a unique and successful experience, we invest in educating our team adherence to the Los Angeles Building and Safety rules and regulations while implementing the newest technologies. We offer a fully inclusive client-focused construction management experience. We earn our clients trust by remaining true to our foundation, our capability to suit the varied needs, styes and preferences of our clients. We are working together to reach the best possible remodeling outcomes. On each of our projects we have a team of professional craftsmen and experienced project managers to allow a solid workflow that accommodates complete support and communications with our clients. Call us today to get your in-home FREE consultation!

"Great. They did a very professional job from 1st interview to the contract to the completion of the job and their checking of the completion. I would use them again if needed."

David P on June 2025


Avatar for The Home Remodeling Guys, Inc.
The Home Remodeling Guys, Inc.
10000 Washington Blvd, Floor 6
5.00(
30
)
Approved Pro
The Home Remodeling Guys, Inc.
10000 Washington Blvd, Floor 6
5.00(
30
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

At The Home Remodeling Guys, we are dedicated to transforming your living space into the home of your dreams. Specializing in kitchen and bathroom remodeling, as well as general and complete home renovations, we offer a wide range of services to enhance both the functionality and beauty of your home. With a team of experienced professionals, we take pride in delivering high-quality craftsmanship, attention to detail, and personalized solutions tailored to your unique style and needs. Whether you're looking to update a single room or undertake a full home transformation, The Home Remodeling Guys are here to bring your vision to life with expertise and care.

"We hired The Home Remodeling Guys to remodel both bathrooms in our home, and the results are fantastic. From the initial consultation to the final touches, their team was reliable, skilled, and easy to work with. They helped us modernize both spaces with updated vanities, new tile work, lighting, and fixtures. One of the bathrooms had some plumbing challenges, but they handled it quickly and professionally without delaying the schedule. The crew was respectful of our home, kept the workspace clean, and stayed on track with the timeline and budget. Communication was consistent throughout, and they were always available to answer questions or offer helpful suggestions. Both bathrooms now look fresh, functional, and beautifully done—we’ve gotten tons of compliments already! We wouldn’t hesitate to work with The Home Remodeling Guys again and recommend them to anyone looking for top-quality remodeling work."

Thomas B on July 2025

At The Home Remodeling Guys, we are dedicated to transforming your living space into the home of your dreams. Specializing in kitchen and bathroom remodeling, as well as general and complete home renovations, we offer a wide range of services to enhance both the functionality and beauty of your home. With a team of experienced professionals, we take pride in delivering high-quality craftsmanship, attention to detail, and personalized solutions tailored to your unique style and needs. Whether you're looking to update a single room or undertake a full home transformation, The Home Remodeling Guys are here to bring your vision to life with expertise and care.

"We hired The Home Remodeling Guys to remodel both bathrooms in our home, and the results are fantastic. From the initial consultation to the final touches, their team was reliable, skilled, and easy to work with. They helped us modernize both spaces with updated vanities, new tile work, lighting, and fixtures. One of the bathrooms had some plumbing challenges, but they handled it quickly and professionally without delaying the schedule. The crew was respectful of our home, kept the workspace clean, and stayed on track with the timeline and budget. Communication was consistent throughout, and they were always available to answer questions or offer helpful suggestions. Both bathrooms now look fresh, functional, and beautifully done—we’ve gotten tons of compliments already! We wouldn’t hesitate to work with The Home Remodeling Guys again and recommend them to anyone looking for top-quality remodeling work."

Thomas B on July 2025


Avatar for Stone Age Design & Build Inc
Stone Age Design & Build Inc
Calle Miramar
4.70(
101
)
Approved Pro
Stone Age Design & Build Inc
Calle Miramar
4.70(
101
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
239 local quotes requested

We specialize in residential remodeling, including; kitchen, bathrooms & room additions. We also provide professional project planning, space planning, interior design & architectural & engineering services. We are a staff of construction professionals & craftsman with over 30 years experience, dedicated in achieving nothing less then perfection. From your initial contact to our final walk through we will take our time, listen & take the appropriate action to make sure we totally understand your needs & vision to ensure the end result is everything you imagined... and more! You can also visit us on Facebook or at: www.stone-age-designs.com

"It was my first time doing any type of renovation and I could not have done it without the trusting support of Stone Age and its excellent team. I would highly recommend Stone Age for your Renovation needs."

Berna R on December 2023

We specialize in residential remodeling, including; kitchen, bathrooms & room additions. We also provide professional project planning, space planning, interior design & architectural & engineering services. We are a staff of construction professionals & craftsman with over 30 years experience, dedicated in achieving nothing less then perfection. From your initial contact to our final walk through we will take our time, listen & take the appropriate action to make sure we totally understand your needs & vision to ensure the end result is everything you imagined... and more! You can also visit us on Facebook or at: www.stone-age-designs.com

"It was my first time doing any type of renovation and I could not have done it without the trusting support of Stone Age and its excellent team. I would highly recommend Stone Age for your Renovation needs."

Berna R on December 2023


Avatar for Paradigm Builders
Paradigm Builders
1800 Century Park East Suite 600
5.00(
35
)
Approved Pro
Paradigm Builders
1800 Century Park East Suite 600
5.00(
35
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
908 local quotes requested

Los Angeles Premier design and build company specializing in home remodeling and construction. We are dedicated to delivering superior workmanship and ensuring complete customer satisfaction. Our team of highly skilled professionals works closely with clients to understand their unique needs and vision, providing custom solutions that are functional, stylish, and within budget. With exceptional communication and meticulous attention to detail, we guide our clients seamlessly from concept to completion. Contact us today to schedule your free in-home design consultation.

"Recently, our house was sold, and we attribute the increased value to the renovations we undertook. Aviv oversaw the project, consistently available to respond to our inquiries and handle any issues that arose. The renovation encompassed significant tasks such as wall removal, fireplace elimination, beam installation, and the revamping of both the kitchen, bathrooms and new flooring. The workflow and collaboration with vendors and workers from Paradigm Builders was seamless. We'll definitely be working with Paradigm Builders again for our future projects."

Joan Hazel F on April 2024

Los Angeles Premier design and build company specializing in home remodeling and construction. We are dedicated to delivering superior workmanship and ensuring complete customer satisfaction. Our team of highly skilled professionals works closely with clients to understand their unique needs and vision, providing custom solutions that are functional, stylish, and within budget. With exceptional communication and meticulous attention to detail, we guide our clients seamlessly from concept to completion. Contact us today to schedule your free in-home design consultation.

"Recently, our house was sold, and we attribute the increased value to the renovations we undertook. Aviv oversaw the project, consistently available to respond to our inquiries and handle any issues that arose. The renovation encompassed significant tasks such as wall removal, fireplace elimination, beam installation, and the revamping of both the kitchen, bathrooms and new flooring. The workflow and collaboration with vendors and workers from Paradigm Builders was seamless. We'll definitely be working with Paradigm Builders again for our future projects."

Joan Hazel F on April 2024


Avatar for Creative Home Remodeling Group Inc.
Creative Home Remodeling Group Inc.
11333 Moorpark Street
4.78(
205
)
Approved Pro
Creative Home Remodeling Group Inc.
11333 Moorpark Street
4.78(
205
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
2649 local quotes requested

Creative Home Remodeling Group is a family owned business with a professional crew that has been working together for almost 15 years. We desire to enhance the lives of our clients by providing high quality projects with hands-on service and minimal disruption to the family environment, building trust through communication and attention to detail. Since 2000, Creative Home Remodeling Group, Inc. has helped Southern California area homeowners make their remodeling dreams a reality. Our experienced craftsmen and personal attention to every project ensures that every customer is 100% satisfied. As the owner, I personally oversee every job from start to finish along with my staff. Once a job begins, you can be assured that each day we will be working towards it's completion. As a member of NARI, I have pledged to live up to the organization's high standards of honesty, integrity and responsibility.

"This company is legit! Ovi and his team did a great job of installing my new vinyl fence. Ovi went above and beyond to ensure customer satisfaction. He even helped to negotiate prices between my neighbor and I until we had a price we were all comfortable with for reconstructing a neighboring fence. Look no further. The employees are professional, tidy and punctual. I will most certainly do business with Creative Remodeling again in the future. Thank you Ovi and team!!!"

Donna H on June 2025

Creative Home Remodeling Group is a family owned business with a professional crew that has been working together for almost 15 years. We desire to enhance the lives of our clients by providing high quality projects with hands-on service and minimal disruption to the family environment, building trust through communication and attention to detail. Since 2000, Creative Home Remodeling Group, Inc. has helped Southern California area homeowners make their remodeling dreams a reality. Our experienced craftsmen and personal attention to every project ensures that every customer is 100% satisfied. As the owner, I personally oversee every job from start to finish along with my staff. Once a job begins, you can be assured that each day we will be working towards it's completion. As a member of NARI, I have pledged to live up to the organization's high standards of honesty, integrity and responsibility.

"This company is legit! Ovi and his team did a great job of installing my new vinyl fence. Ovi went above and beyond to ensure customer satisfaction. He even helped to negotiate prices between my neighbor and I until we had a price we were all comfortable with for reconstructing a neighboring fence. Look no further. The employees are professional, tidy and punctual. I will most certainly do business with Creative Remodeling again in the future. Thank you Ovi and team!!!"

Donna H on June 2025


Avatar for McGee Construction
McGee Construction
639 Maple Ave
4.56(
9
)
Approved Pro
McGee Construction
639 Maple Ave
4.56(
9
)
Approved Pro
Customers say: Quick response
2584 local quotes requested
35 years of experience

Our building expertise includes not only remodeling of existing homes, but new custom home construction, multifamily housing, tenant improvements, commercial and industrial office buildings. Our professional staff has the experience necessary to give you the confidence to start your next project today.

"Our project manager, Cade McGee, set an inspiring standard with his remarkable blend of kindness and honesty throughout our journey. From day one to the grand finale, he approached our unique needs with genuine care, treating our home as if it were his own treasure. Each crew member arrived punctually, ready to embrace the day's adventures. Cade and his teams were always available to explain each step whenever we had questions. Their unwavering dedication to excellence transformed what could have been just another project into a seamless and truly enjoyable experience."

Maki H on July 2025

Our building expertise includes not only remodeling of existing homes, but new custom home construction, multifamily housing, tenant improvements, commercial and industrial office buildings. Our professional staff has the experience necessary to give you the confidence to start your next project today.

"Our project manager, Cade McGee, set an inspiring standard with his remarkable blend of kindness and honesty throughout our journey. From day one to the grand finale, he approached our unique needs with genuine care, treating our home as if it were his own treasure. Each crew member arrived punctually, ready to embrace the day's adventures. Cade and his teams were always available to explain each step whenever we had questions. Their unwavering dedication to excellence transformed what could have been just another project into a seamless and truly enjoyable experience."

Maki H on July 2025

...
Showing 1-10 of 927
The Inglewood, CA homeowners’ guide to second story addition building services
From average costs to expert advice, get all the answers you need to get your job done.
WOMAN EXERCISING IN HOME GYM
Jul 31, 2025
Jul 31, 2025
Budget for the cost to build a home gym based on factors such as project complexity, labor, gym type, flooring, electrical work, and more.
A view of a bathroom
Jul 29, 2025
Jul 29, 2025
Learn how much you’ll pay for a heated bathroom floor by exploring cost factors like the system type, labor rates, and permit fees.
A fancy black sink in a modern kitchen
Jul 29, 2025
Jul 29, 2025
Discover how much it costs to install limestone countertops, exploring how square footage, labor rates, and countertop design affect your total costs.
GAME ROOM IN BASEMENT
Jul 27, 2025
Jul 27, 2025
Learn about game room cost factors such as gaming consoles, sound systems, furnishings, installation labor, and remodeling vs. renovating.
A girl playing with teddy bear while smiling mother and grandmother at kitchen island
Mar 31, 2025
Mar 31, 2025
Explore how much quartzite countertops cost based on factors such as their size, location, design, finish, and labor rates.
Interior view of sunroom
Jul 9, 2025
Jul 9, 2025
Budget for sunroom addition costs based on factors such as room type, site prep, professional labor, features, permits, prefab vs. custom designs, and more.
Share project details to get started.