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Find Addition to existing structure builders in Oregon City

Avatar for Kolt Construction, LLC

Kolt Construction, LLC

5.00(
10
)
•Approved Pro

Kolt Construction, LLC

5.00(
10
)
•Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
11 local quotes requested

Kolt Construction is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. 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.

"I had a great experience working with Kolt Construction on a remodeling project. The team was professional, thorough, and easy to communicate with from start to finish. Austin paid close attention to the details, and the craftsmanship truly shows in the final result. I would gladly recommend Kolt Construction to anyone looking for high-quality, dependable construction work."

Ashley M on December 2025

Kolt Construction is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. 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.

"I had a great experience working with Kolt Construction on a remodeling project. The team was professional, thorough, and easy to communicate with from start to finish. Austin paid close attention to the details, and the craftsmanship truly shows in the final result. I would gladly recommend Kolt Construction to anyone looking for high-quality, dependable construction work."

Ashley M on December 2025

Avatar for J & M HOME AND GARDEN SOLUTIONS LLC

J & M HOME AND GARDEN SOLUTIONS LLC

5.00(
1
)
•Approved Pro

J & M HOME AND GARDEN SOLUTIONS LLC

5.00(
1
)
•Approved Pro
6 years of experience
Free onsite estimate

J&M Home and Garden Solutions LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. 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.

"We had windows resized and replaced. One of our exterior walls had to be rebuilt. The J and M crew were very professional and courteous. The cost of the remodel was very reasonable. We will definitely call them for our next project!!!"

J M on August 2025

J&M Home and Garden Solutions LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. 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.

"We had windows resized and replaced. One of our exterior walls had to be rebuilt. The J and M crew were very professional and courteous. The cost of the remodel was very reasonable. We will definitely call them for our next project!!!"

J M on August 2025

NW Craft Construction, LLC

5.00(
2
)
•Approved Pro

NW Craft Construction, LLC

5.00(
2
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 years of experience

NW Craft Construction LLC is the premier home improvement company serving Lake Oswego and West Linn for over 12 years. Our #1 goal as a company is having complete customer satisfaction and there is no job that is too big or too small. If you want the job done right, call Scott today for a FREE estimate.

"He was great! Has great prices all around and does high quality work"

Brian B on November 2021

NW Craft Construction LLC is the premier home improvement company serving Lake Oswego and West Linn for over 12 years. Our #1 goal as a company is having complete customer satisfaction and there is no job that is too big or too small. If you want the job done right, call Scott today for a FREE estimate.

"He was great! Has great prices all around and does high quality work"

Brian B on November 2021

Avatar for F.J.S. Construction

F.J.S. Construction

4.90(
5
)
•Approved Pro

F.J.S. Construction

4.90(
5
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 years of experience

I moved from a farm into a new house in a small town. They built four more homes next to our house and I told my parents I want to do that when I grow up. For the last 33 years I’ve been doing just that . I guess you can say “ I’m living my dream “. I do my best to listen to my clients and help them with the vision they gave for their. Communication from start to finish.

"I would highly recommend them!"

Jim H on March 2023

I moved from a farm into a new house in a small town. They built four more homes next to our house and I told my parents I want to do that when I grow up. For the last 33 years I’ve been doing just that . I guess you can say “ I’m living my dream “. I do my best to listen to my clients and help them with the vision they gave for their. Communication from start to finish.

"I would highly recommend them!"

Jim H on March 2023

Avatar for MHM Construction, LLC

MHM Construction, LLC

5.00(
3
)
•Approved Pro

MHM Construction, LLC

5.00(
3
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

We are a locally owned and operated company. We value honesty and integrity in all aspects of our business. We offer a variety of home improvement services that are customized to each individual project. We pride ourselves on the quality of our work, as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

"They were very easy to work with and very kind I got exactly what I asked for. They pay close attention to detail. Theyâ  re very clean and thorough! They do everything to please the client"

Luis S on June 2023

We are a locally owned and operated company. We value honesty and integrity in all aspects of our business. We offer a variety of home improvement services that are customized to each individual project. We pride ourselves on the quality of our work, as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

"They were very easy to work with and very kind I got exactly what I asked for. They pay close attention to detail. Theyâ  re very clean and thorough! They do everything to please the client"

Luis S on June 2023

Grit Builders, LLC

5.00(
8
)
•Approved Pro

Grit Builders, LLC

5.00(
8
)
•Approved Pro
Customers say: Quick response
30 years of experience
Free onsite estimate

We're 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 General Contractor Home Improvement services that are customizable to each individual project. We specialize in Bathroom , Kitchen Remodels and Home Additions 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!

"Cannot impress how much we enjoyed working with Matt and his team. I'm a realtor and know a lot of contractors and can truly say Matt went above and beyond! We had him do two baths and some "extras" and are not only thrilled with the result, but he came in under budget! If you want to work with someone with integrity and a passion for making his clients happy, then Matt is your guy! "

Nan K on February 2025

We're 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 General Contractor Home Improvement services that are customizable to each individual project. We specialize in Bathroom , Kitchen Remodels and Home Additions 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!

"Cannot impress how much we enjoyed working with Matt and his team. I'm a realtor and know a lot of contractors and can truly say Matt went above and beyond! We had him do two baths and some "extras" and are not only thrilled with the result, but he came in under budget! If you want to work with someone with integrity and a passion for making his clients happy, then Matt is your guy! "

Nan K on February 2025

Avatar for Archer Construction and Remodel LLC

Archer Construction and Remodel LLC

5.00(
1
)
•Approved Pro

Archer Construction and Remodel LLC

5.00(
1
)
•Approved Pro
16 years of experience
Free onsite estimate

Archer Construction and Remodel LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. 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.

"Chris and Chris were great. I had a complete kitchen remodel down to studs, lots of rot. New cabinets , paint , counters and floors . They were upfront about the total cost from ghe start and all of their work was very good. They worked around my work schedule. Love my new kitchen."

Delaina A on March 2025

Archer Construction and Remodel LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. 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.

"Chris and Chris were great. I had a complete kitchen remodel down to studs, lots of rot. New cabinets , paint , counters and floors . They were upfront about the total cost from ghe start and all of their work was very good. They worked around my work schedule. Love my new kitchen."

Delaina A on March 2025

Avatar for Serden Group, LLC

Serden Group, LLC

4.97(
153
)
•Approved Pro

Serden Group, LLC

4.97(
153
)
•Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
78 local quotes requested

Serden Group LLC is a leading general contractor specializing in kitchen and bathroom remodels, as well as siding installations in the Vancouver, WA area. With years of experience and a team of skilled professionals, we are dedicated to providing high-quality craftsmanship and exceptional customer service. Whether you are looking to update your kitchen, bathroom, or exterior siding, Serden Group LLC is your go-to remodeling expert. Contact us today for a consultation and let us bring your vision to life. Insured | Licensed | Bonded in Washington & Oregon

"Provider was a pleasure to go business with his associate all were very skilled and provided the work promised or better. I would use them again."

Marsel U on June 2024

Serden Group LLC is a leading general contractor specializing in kitchen and bathroom remodels, as well as siding installations in the Vancouver, WA area. With years of experience and a team of skilled professionals, we are dedicated to providing high-quality craftsmanship and exceptional customer service. Whether you are looking to update your kitchen, bathroom, or exterior siding, Serden Group LLC is your go-to remodeling expert. Contact us today for a consultation and let us bring your vision to life. Insured | Licensed | Bonded in Washington & Oregon

"Provider was a pleasure to go business with his associate all were very skilled and provided the work promised or better. I would use them again."

Marsel U on June 2024

Avatar for Carp Contracting LLC

Carp Contracting LLC

5.00(
4
)
•Approved Pro

Carp Contracting LLC

5.00(
4
)
•Approved Pro
Super Service Award
2 years of experience
Free onsite estimate

We’re a family-owned and operated contracting company specializing in residential design, remodeling, renovations, and additions. With a focus on quality craftsmanship and personalized service, we work closely with each homeowner to bring their vision to life. Our in-house design team provides detailed drawings and renderings to help you plan with confidence, while our hands-on approach ensures every detail is done right. Whether you’re updating a single space or transforming your entire home, we’re committed to delivering results that are built to last—and built around you. Contact us today!

"We hired Carp Contracting for a home refresh and we couldn’t be happier with the results. The team was delightful, professional, and we look forward to working with them again. They helped finalize our vision with thoughtful suggestions, high quality craftsmanship, and attention to detail. The project stayed on schedule, and the site was kept clean and organized. You can tell they care about the quality of their work. I highly recommend Carp Contracting to anyone looking for reliable and high-quality work!"

CM D on May 2025

We’re a family-owned and operated contracting company specializing in residential design, remodeling, renovations, and additions. With a focus on quality craftsmanship and personalized service, we work closely with each homeowner to bring their vision to life. Our in-house design team provides detailed drawings and renderings to help you plan with confidence, while our hands-on approach ensures every detail is done right. Whether you’re updating a single space or transforming your entire home, we’re committed to delivering results that are built to last—and built around you. Contact us today!

"We hired Carp Contracting for a home refresh and we couldn’t be happier with the results. The team was delightful, professional, and we look forward to working with them again. They helped finalize our vision with thoughtful suggestions, high quality craftsmanship, and attention to detail. The project stayed on schedule, and the site was kept clean and organized. You can tell they care about the quality of their work. I highly recommend Carp Contracting to anyone looking for reliable and high-quality work!"

CM D on May 2025

Avatar for R3J Residential Services

R3J Residential Services

4.84(
67
)
•Approved Pro

R3J Residential Services

4.84(
67
)
•Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
18 years of experience

Empowering homeowners to reimagine their living spaces with creativity, care, and a commitment to crafting environments that inspire joy and connection. We make it our job to listen as well as offer expert advice and ideas to help design the project of your dreams and not our own. Here at R3J Residential Services, we are client-oriented and pride ourselves on quality craftsmanship and earning your trust. We believe that it takes teamwork, and you, as our customer, are an integral part of that team. We prefer to provide value and build relationships, not just have transactions. Whether your project is a complete overhaul or area specific we will assist you in making the best possible choices for the best possible result. Your Improved Quality of Life Is Our Ultimate Goal

"Ron and his crew were great They showed up on time every day and performed the work in a professional manner. Ron is honest and trustworthy. He helped us plan the project, guided us through the process, and was quick to respond when we had questions. We wouldn't hesitate to hire him again."

Richard O on September 2023

Empowering homeowners to reimagine their living spaces with creativity, care, and a commitment to crafting environments that inspire joy and connection. We make it our job to listen as well as offer expert advice and ideas to help design the project of your dreams and not our own. Here at R3J Residential Services, we are client-oriented and pride ourselves on quality craftsmanship and earning your trust. We believe that it takes teamwork, and you, as our customer, are an integral part of that team. We prefer to provide value and build relationships, not just have transactions. Whether your project is a complete overhaul or area specific we will assist you in making the best possible choices for the best possible result. Your Improved Quality of Life Is Our Ultimate Goal

"Ron and his crew were great They showed up on time every day and performed the work in a professional manner. Ron is honest and trustworthy. He helped us plan the project, guided us through the process, and was quick to respond when we had questions. We wouldn't hesitate to hire him again."

Richard O on September 2023

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FAQs for addition to existing structure building service projects in Oregon City, OR

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 Oregon City, OR 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.

See all articles