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Second story addition builders in Lake Oswego

Avatar for Foremost Construction
Foremost Construction
765 Se Mt Hood Hwy
New on HomeAdvisorNew on Angi
Approved Pro
Foremost Construction
765 Se Mt Hood Hwy
New on AngiNew on HomeAdvisor
Approved Pro
520 local quotes requested
10 years of experience

Welcome to Foremost Construction! We look forward to serving you!

Welcome to Foremost Construction! We look forward to serving you!


Avatar for A&C Innovative Contractors, LLC
A&C Innovative Contractors, LLC
5.00(
6
)
Approved Pro
A&C Innovative Contractors, LLC
5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
327 local quotes requested

We specialize in all phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, and more! We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"I would highly recommend Johnny and his team. From the start Johnny was able to give us a bid within our budget and was very knowledgeable. The whole team was top notch!! Everyone was professional, hard working as well as kind and respectful. They all seemed like family by the end of the project. Looking forward to working with all of these guys again."

Client Mark Fleming F on May 2024

We specialize in all phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, and more! We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"I would highly recommend Johnny and his team. From the start Johnny was able to give us a bid within our budget and was very knowledgeable. The whole team was top notch!! Everyone was professional, hard working as well as kind and respectful. They all seemed like family by the end of the project. Looking forward to working with all of these guys again."

Client Mark Fleming F on May 2024


Avatar for Alta Casa
Alta Casa
5123 NE 94th Ave
5.00(
5
)
Approved Pro
Alta Casa
5123 NE 94th Ave
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

At Alta Casa Renovations, we bring a fresh, modern approach to home remodeling in Portland, OR, and Vancouver, WA. Specializing in full-service renovations, we provide a seamless, stress-free design-to-construction experience, handling everything from kitchen and bathroom remodels to whole-home renovations. Our team ensures precision, organization, and high-quality craftsmanship, turning your vision into reality. With years of experience in the remodeling industry, we are committed to professionalism, transparency, and personalized service. Whether upgrading a single space or transforming an entire home, Alta Casa is dedicated to creating beautiful, functional living environments that enhance your lifestyle.

"My experience went great ! Made it really easy on me , other companies weren’t transparent or as easy to understand ( the process ) as much as they did here the whole team did great !"

Roberto E on February 2025

At Alta Casa Renovations, we bring a fresh, modern approach to home remodeling in Portland, OR, and Vancouver, WA. Specializing in full-service renovations, we provide a seamless, stress-free design-to-construction experience, handling everything from kitchen and bathroom remodels to whole-home renovations. Our team ensures precision, organization, and high-quality craftsmanship, turning your vision into reality. With years of experience in the remodeling industry, we are committed to professionalism, transparency, and personalized service. Whether upgrading a single space or transforming an entire home, Alta Casa is dedicated to creating beautiful, functional living environments that enhance your lifestyle.

"My experience went great ! Made it really easy on me , other companies weren’t transparent or as easy to understand ( the process ) as much as they did here the whole team did great !"

Roberto E on February 2025


Avatar for Grit Builders, LLC
Grit Builders, LLC
Beacon Hill Dr
5.00(
14
)
Approved Pro
Grit Builders, LLC
Beacon Hill Dr
5.00(
14
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
207 local quotes requested

We specialize in all phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, and more! We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"Matt at Grit Builders, LLC was the best contractor we have ever worked with. We came to him with two bathroom remodels which we needed to be done before selling our house. From the first conversation with him, I knew he was going to be true to his word on completion, budget, and communication throughout the project. We had a pretty tight timeline which he meet and came in at budget / cost. He and his team were communicative, hard working, and clean throughout the entire process. The result was amazing and added the refresh to a 20 year old house which we were looking for. We had cabinetry repainted, new shower / bath stalls installed with tiled walls. Complete reflooring as well as new countertops, vanities and mirrors. He also helped clean up other smaller projects within the house which we wanted addressed before listing our house."

Todd D on June 2025

We specialize in all phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, and more! We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"Matt at Grit Builders, LLC was the best contractor we have ever worked with. We came to him with two bathroom remodels which we needed to be done before selling our house. From the first conversation with him, I knew he was going to be true to his word on completion, budget, and communication throughout the project. We had a pretty tight timeline which he meet and came in at budget / cost. He and his team were communicative, hard working, and clean throughout the entire process. The result was amazing and added the refresh to a 20 year old house which we were looking for. We had cabinetry repainted, new shower / bath stalls installed with tiled walls. Complete reflooring as well as new countertops, vanities and mirrors. He also helped clean up other smaller projects within the house which we wanted addressed before listing our house."

Todd D on June 2025


Bath Center
.
New on HomeAdvisorNew on Angi
Approved Pro
Bath Center
.
New on AngiNew on HomeAdvisor
Approved Pro
620 local quotes requested

Offering Kitchen & Bath Remodeling Services in your area. Call today to discuss your project.

Offering Kitchen & Bath Remodeling Services in your area. Call today to discuss your project.


Avatar for Delph Creek Construction
Delph Creek Construction
5.00(
1
)
Approved Pro
Delph Creek Construction
5.00(
1
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
466 local quotes requested

Delph Creek Construction, LLC is a family owned and operated construction company specializing in home remodels and builds. Delph Creek Construction, LLC is a residential and commercial general construction company located in Estacada, Oregon serving the greater Portland Metro area that offers services with whole house remodels, kitchen, bathrooms, basements, carports/garages, additions, decks, patios, flooring, tile, and new home builds.

"Corey is amazing he has a great eye and goes above expectations. They are very professional and add suggestion that you might not have thought of my kitchen is beautiful a both bathrooms. I refer him to all my friends"

Tricia B on February 2024

Delph Creek Construction, LLC is a family owned and operated construction company specializing in home remodels and builds. Delph Creek Construction, LLC is a residential and commercial general construction company located in Estacada, Oregon serving the greater Portland Metro area that offers services with whole house remodels, kitchen, bathrooms, basements, carports/garages, additions, decks, patios, flooring, tile, and new home builds.

"Corey is amazing he has a great eye and goes above expectations. They are very professional and add suggestion that you might not have thought of my kitchen is beautiful a both bathrooms. I refer him to all my friends"

Tricia B on February 2024


Avatar for Kiss My Grass
Kiss My Grass
11515 Southwest Center Street
5.00(
1
)
Approved Pro
Kiss My Grass
11515 Southwest Center Street
5.00(
1
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
526 local quotes requested

We are specialized on paver patios, outdoor kitchen, pergolas and decking, taking pride on our high quality standards. In kiss my grass our philosophy is "The improvement to your property will reflect the passion we have for creating outdoor spaces

"These guys were terrific! Friendly, informative, and very fairly priced. The work has held up perfectly and they did an absolutely fantastic job!"

Joe D on May 2024

We are specialized on paver patios, outdoor kitchen, pergolas and decking, taking pride on our high quality standards. In kiss my grass our philosophy is "The improvement to your property will reflect the passion we have for creating outdoor spaces

"These guys were terrific! Friendly, informative, and very fairly priced. The work has held up perfectly and they did an absolutely fantastic job!"

Joe D on May 2024


Avatar for R3J Residential Services
R3J Residential Services
18841 Hein Ct
4.83(
66
)
Approved Pro
R3J Residential Services
18841 Hein Ct
4.83(
66
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
296 local quotes requested

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


Avatar for Tellezremodeling
Tellezremodeling
9020 NE 25th Cir
5.00(
14
)
Approved Pro
Tellezremodeling
9020 NE 25th Cir
5.00(
14
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
810 local quotes requested

We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule an estimate today!

"Genero was efficient and pleasant to work with. I have used his services for my rental property for over 8 years."

Danielle M on July 2024

We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule an estimate today!

"Genero was efficient and pleasant to work with. I have used his services for my rental property for over 8 years."

Danielle M on July 2024


Avatar for New Leaf Renovation
New Leaf Renovation
15993 SW Kreick Pl
4.27(
90
)
Approved Pro
New Leaf Renovation
15993 SW Kreick Pl
4.27(
90
)
Approved Pro
Customers say: Quality work
504 local quotes requested
24 years of experience

My name is Matt and I am the owner of New Leaf Renovation. I have been working in the construction and remodeling industry for 19 years and have owned New Leaf Renovation since 2013 when I purchase the business from my brother Paul. We focus on kitchen and bathroom remodeling with an emphasis on providing an excellent product for a fair price, and believe that good quality materials and workmanship can still exist in a budget conscious world. I am a hands-on owner and if you choose to do business with New Leaf you will see progress everyday, we will never leave you hanging or dissapear to work on other projects. We have passion for creating a fun and functional space and use our design experience to help you form a vision for your project and execute that vision in a way that will create a lasting and quality product. We are an all-inclusive company and happily provide our services equally to everyone. If this sounds like a good fit for your project, we would love to hear from you so we can schedule your free estimate. Give us a call at 5035459112 or Message us through Angi today!

"Matt was very professional and his work is outstanding."

Joelle B on July 2024

My name is Matt and I am the owner of New Leaf Renovation. I have been working in the construction and remodeling industry for 19 years and have owned New Leaf Renovation since 2013 when I purchase the business from my brother Paul. We focus on kitchen and bathroom remodeling with an emphasis on providing an excellent product for a fair price, and believe that good quality materials and workmanship can still exist in a budget conscious world. I am a hands-on owner and if you choose to do business with New Leaf you will see progress everyday, we will never leave you hanging or dissapear to work on other projects. We have passion for creating a fun and functional space and use our design experience to help you form a vision for your project and execute that vision in a way that will create a lasting and quality product. We are an all-inclusive company and happily provide our services equally to everyone. If this sounds like a good fit for your project, we would love to hear from you so we can schedule your free estimate. Give us a call at 5035459112 or Message us through Angi today!

"Matt was very professional and his work is outstanding."

Joelle B on July 2024

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FAQs for second story addition building service projects in Lake Oswego, OR

Converting a vaulted ceiling into a second floor requires three to six months from planning to completion. The process begins with several weeks of design and engineering, followed by permit applications, which vary in processing time by location. 

Construction itself spans several months, including framing, systems installation, and finishing work. Weather conditions, contractor availability, and inspection schedules can all influence your project timeline.

Several factors could make your conversion challenging or impossible. Inadequate roof support structures, insufficient foundation capacity, or problematic truss configurations might require prohibitively expensive modifications. 

Some homes lack the minimum ceiling height (12 feet at the lowest point) needed for functional second-floor spaces. Building code restrictions in your area might also limit conversion possibilities, particularly in historic districts or homes with specific architectural designations.

Begin with professional assessments from both an architect and a structural engineer who will evaluate your home's specific characteristics. They'll examine existing framing, measure available headroom, assess load-bearing capacity, and identify potential obstacles like HVAC ducts or plumbing vents. 

These experts will also review local building codes to determine feasibility. Their preliminary analysis provides crucial information about structural requirements and potential limitations before you commit to the project.

Whether you'll need temporary housing depends on several factors, including the project's scope and your tolerance for construction disruption. Major structural work creates significant noise, dust, and potential utility interruptions that many families find challenging to live with. Safety concerns may also arise during certain construction phases. 

Some homeowners successfully remain by isolating the construction zone and establishing clear work schedules. Discuss living arrangements with your contractor early in the planning process to make informed decisions.

The Lake Oswego, OR 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.
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