Top-rated second story addition builders.

Get matched with top second story addition builders in Castle Rock, CO

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.

Find Second story addition builders in Castle Rock

Avatar for MyBath Colorado

MyBath Colorado

10940 S Parker Rd
4.00(
4
)
•Approved Pro

MyBath Colorado

10940 S Parker Rd
4.00(
4
)
•Approved Pro
Customers say: Quality work
1089 local quotes requested
2 years of experience

MyBath Colorado is a smaller local Kitchen and Bath Remodeling company that offers higher end, quality product without the price tag of the big remodel companies. We offer bathroom remodels, which ranges from tub and shower replacements, tub-to-shower conversions, safe showers, and more. Refresh your kitchen, including new cabinets, countertops, sinks and faucet. We are local families serving local families. Our reputation over thousands of projects completed is built on service, safety and quality, built for you. This is your house, your family, your bath.

"My Bath Colorado did an amazing job updating my bathroom! It's now the nicest room in my house! Noah and Dillon did a fantastic job with installation and were very professional and courteous. I'm ready to do the next bathroom (when I save up my money - lol). Thanks My Bath!"

Karmen A on February 2025

MyBath Colorado is a smaller local Kitchen and Bath Remodeling company that offers higher end, quality product without the price tag of the big remodel companies. We offer bathroom remodels, which ranges from tub and shower replacements, tub-to-shower conversions, safe showers, and more. Refresh your kitchen, including new cabinets, countertops, sinks and faucet. We are local families serving local families. Our reputation over thousands of projects completed is built on service, safety and quality, built for you. This is your house, your family, your bath.

"My Bath Colorado did an amazing job updating my bathroom! It's now the nicest room in my house! Noah and Dillon did a fantastic job with installation and were very professional and courteous. I'm ready to do the next bathroom (when I save up my money - lol). Thanks My Bath!"

Karmen A on February 2025

Avatar for Athenaeum Properties

Athenaeum Properties

24398 E Davies Place
5.00(
14
)
•Approved Pro

Athenaeum Properties

24398 E Davies Place
5.00(
14
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
488 local quotes requested

Athenaeum Properties, LLC is a construction company based in the Colorado Denver Metro area, specializing in residential home remodels. We are in the business of helping make our clients' dreams come true with and we enjoy working on a wide variety of projects such as kitchens, bathrooms, basements, decks, and more! We pride ourselves in our word-of-mouth reputation and our amazing repeat customers! We have been in business for five years and are a small veteran-owned company. We take our work seriously and make sure to provide communication and transparency throughout the entire process. We are looking forward to hearing about your needs and wants for your next home project to see how we can help!

"I can't recommend Athenaeum highly enough. John did a great job with our basement renovation. It looks beautiful and is up to code and he was able to work with me on the price. I'm certainly going to be reaching out to Athenaeum again for my next project"

Sam M on October 2023

Athenaeum Properties, LLC is a construction company based in the Colorado Denver Metro area, specializing in residential home remodels. We are in the business of helping make our clients' dreams come true with and we enjoy working on a wide variety of projects such as kitchens, bathrooms, basements, decks, and more! We pride ourselves in our word-of-mouth reputation and our amazing repeat customers! We have been in business for five years and are a small veteran-owned company. We take our work seriously and make sure to provide communication and transparency throughout the entire process. We are looking forward to hearing about your needs and wants for your next home project to see how we can help!

"I can't recommend Athenaeum highly enough. John did a great job with our basement renovation. It looks beautiful and is up to code and he was able to work with me on the price. I'm certainly going to be reaching out to Athenaeum again for my next project"

Sam M on October 2023

Avatar for Easy Green Lawn Care & Landscaping

Easy Green Lawn Care & Landscaping

6920 S JORDAN ROAD
New on HomeAdvisorNew on HomeAdvisor
•Approved Pro

Easy Green Lawn Care & Landscaping

6920 S JORDAN ROAD
New on HomeAdvisorNew on HomeAdvisor
•Approved Pro
605 local quotes requested
12 years of experience

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 all the services we offer below and call -or- click to schedule an estimate today!

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 all the services we offer below and call -or- click to schedule an estimate today!

Avatar for The Eagle Design, LLC

The Eagle Design, LLC

Located In:
5.00(
6
)
•Approved Pro

The Eagle Design, LLC

Located In:
5.00(
6
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
869 local quotes requested

Established in 1999. We specialize in all phases of remodeling for your home or business. We pride ourselves on the quality work we provide, while delivering great customer service. Please see some of the services we offer below and call -or- click to schedule a free estimate today!

"The team was fantastic! They were on time, communicated effectively throughout the project, and worked quickly. The finished bathroom is spectacular. Highly recommend!"

Carol J on June 2025

Established in 1999. We specialize in all phases of remodeling for your home or business. We pride ourselves on the quality work we provide, while delivering great customer service. Please see some of the services we offer below and call -or- click to schedule a free estimate today!

"The team was fantastic! They were on time, communicated effectively throughout the project, and worked quickly. The finished bathroom is spectacular. Highly recommend!"

Carol J on June 2025

Avatar for Union Construction Company

Union Construction Company

314 Montclair St
5.00(
3
)
•Approved Pro

Union Construction Company

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

Union Construction Company specializes in delivering high-quality construction and hardscape solutions for both residential and commercial properties. Our services include driveways, pathways, patios, paving, fence construction, concrete works, and beautification projects. We also provide comprehensive interior and exterior structure construction, ensuring safety, durability, and aesthetic appeal. Dedicated to excellence, sustainability, and customer satisfaction, we pride ourselves on creating spaces that are functional, beautiful, and built to last. Whether you’re planning a new project or upgrading an existing space, Union Construction Company is your trusted partner in turning vision into reality. We build a future with strength and style.

"Daniel has an amazing team, great attention to detail and wonderful customer service. We will hire him for any future projects!"

Estrella J on September 2025

Union Construction Company specializes in delivering high-quality construction and hardscape solutions for both residential and commercial properties. Our services include driveways, pathways, patios, paving, fence construction, concrete works, and beautification projects. We also provide comprehensive interior and exterior structure construction, ensuring safety, durability, and aesthetic appeal. Dedicated to excellence, sustainability, and customer satisfaction, we pride ourselves on creating spaces that are functional, beautiful, and built to last. Whether you’re planning a new project or upgrading an existing space, Union Construction Company is your trusted partner in turning vision into reality. We build a future with strength and style.

"Daniel has an amazing team, great attention to detail and wonderful customer service. We will hire him for any future projects!"

Estrella J on September 2025

Avatar for Issac Landscaping

Issac Landscaping

2818 Swale Run
4.32(
22
)
•Approved Pro

Issac Landscaping

2818 Swale Run
4.32(
22
)
•Approved Pro
Customers say: Quality work
309 local quotes requested
Free onsite estimate

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 a free estimate today. free estimates 719 9301845 **Ask about our retaining wall artificial grass installation**

"We needed to refresh our rocks in our xceriscaping, it was very spare. We ordered 12 tons of 3/4" Colorado Rose rocks, the same we had. They turn less red after a while with the rain and snow. So eventually it will all look uniformed. Isaac responded quickly to my quote request online and even offered to stop by the same evening as we were ready to do this project. His crew/employees and he did an amazing, filling in all the bare areas (many) and refreshing all with a thin layer of the new rocks, just as we requested. They cleaned up the areas upfront where the rock had been delivered and all other areas as well. Everyone was professional and very nice. Great job, thank you. We couldn't be happier."

jutta s on May 2025

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 a free estimate today. free estimates 719 9301845 **Ask about our retaining wall artificial grass installation**

"We needed to refresh our rocks in our xceriscaping, it was very spare. We ordered 12 tons of 3/4" Colorado Rose rocks, the same we had. They turn less red after a while with the rain and snow. So eventually it will all look uniformed. Isaac responded quickly to my quote request online and even offered to stop by the same evening as we were ready to do this project. His crew/employees and he did an amazing, filling in all the bare areas (many) and refreshing all with a thin layer of the new rocks, just as we requested. They cleaned up the areas upfront where the rock had been delivered and all other areas as well. Everyone was professional and very nice. Great job, thank you. We couldn't be happier."

jutta s on May 2025

Avatar for Peppers Landesign Services

Peppers Landesign Services

5416 W Indore Dr
4.77(
86
)
•Approved Pro

Peppers Landesign Services

5416 W Indore Dr
4.77(
86
)
•Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
1927 local quotes requested

We are a family and veteran owned and operated business located in Littleton CO. We are your true one-stop concrete, retaining wall, fencing, deck/pergola company. We offer many other services as well. Call Gabriel today for your free consultation at 303.994.2944.

"The work was completed in a timely manor and overall looks good, during the project Gabe tried to change the scope many times, but ultimately did stick to our quote. Once work was completed he requested an additional $600 “because we did such a good job” finally within 90 days of having our fence and gate installed the gate began to sag. I contacted Gabe to give him an opportunity to make it right but he did not respond in any capacity. Moral of the story: make sure the work is 1000% because once peppers leaves they won’t return to fix any errors."

Nathan S on September 2025

We are a family and veteran owned and operated business located in Littleton CO. We are your true one-stop concrete, retaining wall, fencing, deck/pergola company. We offer many other services as well. Call Gabriel today for your free consultation at 303.994.2944.

"The work was completed in a timely manor and overall looks good, during the project Gabe tried to change the scope many times, but ultimately did stick to our quote. Once work was completed he requested an additional $600 “because we did such a good job” finally within 90 days of having our fence and gate installed the gate began to sag. I contacted Gabe to give him an opportunity to make it right but he did not respond in any capacity. Moral of the story: make sure the work is 1000% because once peppers leaves they won’t return to fix any errors."

Nathan S on September 2025

Avatar for PD Tile & Floors LLC

PD Tile & Floors LLC

4.96(
46
)
•Approved Pro

PD Tile & Floors LLC

4.96(
46
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
356 local quotes requested

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!

"Pete and Juan were excellent to work with. Had good ideas and were very skilled at what they do. Will use these gentleman again."

Pat H on September 2025

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!

"Pete and Juan were excellent to work with. Had good ideas and were very skilled at what they do. Will use these gentleman again."

Pat H on September 2025

Avatar for 4 Seasons Construction

4 Seasons Construction

2758 S Ingalls Way
4.49(
49
)
•Approved Pro

4 Seasons Construction

2758 S Ingalls Way
4.49(
49
)
•Approved Pro
Customers say: Quality work
831 local quotes requested
19 years of experience

We are a full service home remodel company with Handyman services offered. We specialize in kitchens, bathrooms, & basement remodeling. We also offer new builds (and consultations) for ADU's, garages, & decks. Lastly, we have a trustworthy subcontractor group that is licensed & recommended, to provide remodeling aspects such as cabinetry, doors, windows, granite/countertops. Inquire about our concrete services & patios!

"Recently used 4 Season for my kitchen remodel, and am very happy with the end result—it's absolutely beautiful! Together we took the small kitchen from the 1950s to the 2020s, while maximizing the storage capacity. Nick and Russ were great to work with, and I really appreciated their friendly and down-to-earth approach. Nick made himself available for my many questions, his wife was a huge help when it came to making design decisions, and both Nick and Russ were always open to brainstorm ideas for practicality. These are people who take pride in their work and it will show in the end result. Looking forward to working with them again once I come up with the next project :)"

Melissa D on March 2025

We are a full service home remodel company with Handyman services offered. We specialize in kitchens, bathrooms, & basement remodeling. We also offer new builds (and consultations) for ADU's, garages, & decks. Lastly, we have a trustworthy subcontractor group that is licensed & recommended, to provide remodeling aspects such as cabinetry, doors, windows, granite/countertops. Inquire about our concrete services & patios!

"Recently used 4 Season for my kitchen remodel, and am very happy with the end result—it's absolutely beautiful! Together we took the small kitchen from the 1950s to the 2020s, while maximizing the storage capacity. Nick and Russ were great to work with, and I really appreciated their friendly and down-to-earth approach. Nick made himself available for my many questions, his wife was a huge help when it came to making design decisions, and both Nick and Russ were always open to brainstorm ideas for practicality. These are people who take pride in their work and it will show in the end result. Looking forward to working with them again once I come up with the next project :)"

Melissa D on March 2025

Avatar for Wes-Tec Builders Company, Inc.

Wes-Tec Builders Company, Inc.

2850 W 92nd Ave
3.60(
5
)
•Approved Pro

Wes-Tec Builders Company, Inc.

2850 W 92nd Ave
3.60(
5
)
•Approved Pro
Customers say: Terrific value
1057 local quotes requested
37 years of experience

Family owned and operated for over 25 years. A+ rating at the BBB. All major credit cards accepted. Financing available.

"Steve and his team did a great job. He worked with our home insurance and got the water damaged floor replaced quickly and it looks great!"

Kelsey A on August 2024

Family owned and operated for over 25 years. A+ rating at the BBB. All major credit cards accepted. Financing available.

"Steve and his team did a great job. He worked with our home insurance and got the water damaged floor replaced quickly and it looks great!"

Kelsey A on August 2024

...
Showing 1-10 of 968
FAQs for second story addition building service projects in Castle Rock, CO

For many homeowners, building up is worth the expense because it provides the extra bedrooms or living areas that can’t be accommodated within the existing footprint. A larger, updated home often commands a higher resale price, recouping a sizable share of the project cost while allowing you to stay in the neighborhood you love. Run the numbers with a real estate agent and contractor to ensure the expected return and day-to-day benefits align with your goals.

Whether it makes more sense to build up or out depends on your lot, budget, and local code. Building up preserves yard space and involves less foundation work, but you may need to vacate the home during construction. Building out avoids staircases and can proceed while you stay put; however, it encroaches on the yard and may face setback limits. Compare both options with your contractor before making a decision.

A structural engineer will first inspect the existing foundation for cracks, footings, and load capacity. Depending on the findings, the crew may pour new concrete footings, install steel or concrete piers, add reinforced beams, or tie additional rebar into the slab. These upgrades redistribute the weight of the new floor and bring the structure up to code. Your contractor will outline the specific reinforcement plan and timeline once the engineering report is complete.

The Castle Rock, CO 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.

See all articles
  • A renovated kitchen with a waterfall island

    HomeAdvisor’s DIY Kitchen Remodel Cost Guide looks at the cost of buying supplies and doing the work yourself. Find the key cost factors and how to cut expenses.

  • Secret room within bookcase

    HomeAdvisor's expert guide walks you through the cost to build a secret room, whether you're creating a safe room for security or a fun space to fulfil your childhood fantasies. Use this guide to help plan your secret room project and explore room, concea

  • outdoor patio bar

    Explore the cost to build a bar in your home and learn how materials, wet vs. dry bars, and labor costs influence the total price of your project.