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 Dover

Avatar for Basic Basement Co
Basic Basement Co
122 Park Ave
4.83(
312
)
Approved Pro
Basic Basement Co
122 Park Ave
4.83(
312
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
22 local quotes requested

With over 40 years combined experience, we provide complete Basement remodeling and finishing services with Free estimates and no-nonsense pricing. We will give you the Basement you've always wanted by transforming your previously unfinished Basement into a usable and comfortable living area you can be proud of. We are known for constant communication and on-site project management.

"Our experience with Basic Basements was great from start to finish. Gail, the scheduling coordinator, was very responsive and helpful every step of the way keeping us informed about what work was going to be done next. John, our project manager, was great and made sure all the work was completed efficiently and on time. The work crews coming in and out were outstanding. They were very respectful of our home, worked nonstop until the work was finished, and did an excellent job cleaning up every day. The biggest, and only, headache we encountered was waiting for inspections from our town, which is completely out of Basic Basements' control. We are very pleased and would 100% use them again."

Bryan W on March 2025

With over 40 years combined experience, we provide complete Basement remodeling and finishing services with Free estimates and no-nonsense pricing. We will give you the Basement you've always wanted by transforming your previously unfinished Basement into a usable and comfortable living area you can be proud of. We are known for constant communication and on-site project management.

"Our experience with Basic Basements was great from start to finish. Gail, the scheduling coordinator, was very responsive and helpful every step of the way keeping us informed about what work was going to be done next. John, our project manager, was great and made sure all the work was completed efficiently and on time. The work crews coming in and out were outstanding. They were very respectful of our home, worked nonstop until the work was finished, and did an excellent job cleaning up every day. The biggest, and only, headache we encountered was waiting for inspections from our town, which is completely out of Basic Basements' control. We are very pleased and would 100% use them again."

Bryan W on March 2025


M2M Construction LLC
24 Windsor Way
4.94(
17
)
Approved Pro
M2M Construction LLC
24 Windsor Way
4.94(
17
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
85 local quotes requested

We specialized in kitchens and bathrooms remodeling ( almost 20 years of experience) We are also general contractors so we handle small and big exterior and interior projects Quality of work and great customer service is our priority

"We received excellent referrals of M2M and Mark and as a contractor from our realtor, and they met all our expectations. Their team is knowledgeable, committed, clean, and delivers high-quality work with minimum mess. Mark supervised our project and worked closely to attend to all our needs, a significant differential from the contractors in the area. We recommend them for clients looking for a high-end quality job."

Tatiane I on October 2021

We specialized in kitchens and bathrooms remodeling ( almost 20 years of experience) We are also general contractors so we handle small and big exterior and interior projects Quality of work and great customer service is our priority

"We received excellent referrals of M2M and Mark and as a contractor from our realtor, and they met all our expectations. Their team is knowledgeable, committed, clean, and delivers high-quality work with minimum mess. Mark supervised our project and worked closely to attend to all our needs, a significant differential from the contractors in the area. We recommend them for clients looking for a high-end quality job."

Tatiane I on October 2021


Avatar for Monk's Home Improvements
Monk's Home Improvements
1095 Mount Kemble Ave
4.73(
573
)
Approved Pro
Monk's Home Improvements
1095 Mount Kemble Ave
4.73(
573
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
1342 local quotes requested

Along with the Monk's Kitchen & Bath Design Studio, we are a full-service home improvement provider. Monk's will help you plan, design, and purchase everything you need for a remodel. Then our expert craftsmen will install everything and our painters will come and complete the job.

"We hired Monk's to do painting and flooring work on the entire second floor at my mom's house. Kurt did a great job of prepping us for what to expect in terms of timelines and process. Our foreman Huibel did a wonderful job of keeping my mom informed on a daily basis of his progress. He and his crew did excellent, quality work and my mom was super happy with the finished product. Monk's has done a lot of work for us in the past in addition to the flooring and painting, including wainscotting, window and door install, as well as a new composite deck. We are hiring them again to paint the interior of the garage and to install some workbenches and shelving for storage. We can't wait for this work to be done as it's going to make a huge difference. Highly recommend them!"

Jill Y on February 2023

Along with the Monk's Kitchen & Bath Design Studio, we are a full-service home improvement provider. Monk's will help you plan, design, and purchase everything you need for a remodel. Then our expert craftsmen will install everything and our painters will come and complete the job.

"We hired Monk's to do painting and flooring work on the entire second floor at my mom's house. Kurt did a great job of prepping us for what to expect in terms of timelines and process. Our foreman Huibel did a wonderful job of keeping my mom informed on a daily basis of his progress. He and his crew did excellent, quality work and my mom was super happy with the finished product. Monk's has done a lot of work for us in the past in addition to the flooring and painting, including wainscotting, window and door install, as well as a new composite deck. We are hiring them again to paint the interior of the garage and to install some workbenches and shelving for storage. We can't wait for this work to be done as it's going to make a huge difference. Highly recommend them!"

Jill Y on February 2023


Avatar for All Around Renovations LLC
All Around Renovations LLC
96 Mountain Avenue
4.77(
74
)
Approved Pro
All Around Renovations LLC
96 Mountain Avenue
4.77(
74
)
Approved Pro
Customers say: Quality work
109 local quotes requested
20 years of experience

We are a Home Improvement Contractor you can count on to get the job done, with quality services at affordable prices. All sub-contractors are licensed and fully insured. We are also a 203k construction loan approved contractor. To set up a free home or business estimate, please call Michael at 973-233-8162 (M-F 7AM-5PM) or email me at aarenovations@yahoo.com. Check out our website - www.allaroundrenovationsnj.com

"Michael had previously done work for us, renovating two bathrooms, that we absolutely love. So when it was time to redo other rooms of the house, we knew he wouldn’t disappoint. In addition to being skilled, knowledgeable, and professional, he is a genuinely good guy. He offers his expert advice, but doesn’t overstep to disregard your vision. Doing multiple rooms at once is stressful, but we were in good hands with Michael and his crew. What a great group of guys! We couldn’t be happier with our new kitchen, family room, and basement! I have and will continue to recommend All Around Renovations for top rate work at a very fair price. Thanks again, Michael and crew!"

Rene S on November 2024

We are a Home Improvement Contractor you can count on to get the job done, with quality services at affordable prices. All sub-contractors are licensed and fully insured. We are also a 203k construction loan approved contractor. To set up a free home or business estimate, please call Michael at 973-233-8162 (M-F 7AM-5PM) or email me at aarenovations@yahoo.com. Check out our website - www.allaroundrenovationsnj.com

"Michael had previously done work for us, renovating two bathrooms, that we absolutely love. So when it was time to redo other rooms of the house, we knew he wouldn’t disappoint. In addition to being skilled, knowledgeable, and professional, he is a genuinely good guy. He offers his expert advice, but doesn’t overstep to disregard your vision. Doing multiple rooms at once is stressful, but we were in good hands with Michael and his crew. What a great group of guys! We couldn’t be happier with our new kitchen, family room, and basement! I have and will continue to recommend All Around Renovations for top rate work at a very fair price. Thanks again, Michael and crew!"

Rene S on November 2024


Avatar for Nicopal Construction
Nicopal Construction
181 Town Center Dr
4.86(
65
)
Approved Pro
Nicopal Construction
181 Town Center Dr
4.86(
65
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
504 local quotes requested

Nicopal Construction is a locally owned and operated business serving the North New Jersey area. We offer a wide range of home improvement services and have over 25 years of experience. We combine quality materials with expert installation to complete your project to 100 percent satisfaction. On our initial visit we can offer design ideas and give exact costs. If you feel it’s a good fit you move forward. We are Not a high pressured company. We understand comfort levels . Financing available.

"I would hire Nicopal Construction again in a heartbeat! They did a fantastic job renovating it since it was destroyed by Hurricane Ida back in 2021. Whatever the highest rating is add 2 to it!"

Kris K on February 2025

Nicopal Construction is a locally owned and operated business serving the North New Jersey area. We offer a wide range of home improvement services and have over 25 years of experience. We combine quality materials with expert installation to complete your project to 100 percent satisfaction. On our initial visit we can offer design ideas and give exact costs. If you feel it’s a good fit you move forward. We are Not a high pressured company. We understand comfort levels . Financing available.

"I would hire Nicopal Construction again in a heartbeat! They did a fantastic job renovating it since it was destroyed by Hurricane Ida back in 2021. Whatever the highest rating is add 2 to it!"

Kris K on February 2025


Avatar for Traditional Remodeling LLC
Traditional Remodeling LLC
20 Memorial Ct
4.66(
29
)
Approved Pro
Traditional Remodeling LLC
20 Memorial Ct
4.66(
29
)
Approved Pro
Customers say: Quality work
151 local quotes requested
32 years of experience

For over 30 years, owner George Ellenberg, has been building high quality structures. George merged a wealth of experience and skill into a company that has earned a markable reputation as one of the leading contracting companies. George Ellenberg, and his team of professional architects, licensed plumbers and licensed electricians, combine their strengths to create an unbeatable force in construction.

"George and his team did a fantastic job with remodeling our bathroom. Unbelievably smooth process from start to finish. Would and will hire again!!"

Jim R on April 2024

For over 30 years, owner George Ellenberg, has been building high quality structures. George merged a wealth of experience and skill into a company that has earned a markable reputation as one of the leading contracting companies. George Ellenberg, and his team of professional architects, licensed plumbers and licensed electricians, combine their strengths to create an unbeatable force in construction.

"George and his team did a fantastic job with remodeling our bathroom. Unbelievably smooth process from start to finish. Would and will hire again!!"

Jim R on April 2024


Avatar for Modern Knight Designs LLC
Modern Knight Designs LLC
Forest Street
5.00(
7
)
Approved Pro
Modern Knight Designs LLC
Forest Street
5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 years of experience

I strive to design the clients vision aswell as provide renovation services of a luxurious kitchen and bath of their dreams. I pay attention to details and I work well with my clients to build their project scope of work. My focus is quality and professionalism!

"I was looking for a pro who was experienced, honest and could communicate to get the job done right. Dave was the man. He knew what I wanted and suggested options to give the project(complete kitchen and bath remodel) a 5 star review. After my rental was completely destroyed from a tenant, I was up a creek without a paddle. Dave and Pablo went above and beyond to create the Reno I was looking for. From the first interview to the end result, I have no reservations for recommending ModernKnight for any project. They were on time , completely transparent and accommodating every step of the way. Are you looking for the pro to get your job done? Look no further, Dave is the guy! Thanks again Dave and Pablo for everything and more! Freddy."

Freddy W on March 2025

I strive to design the clients vision aswell as provide renovation services of a luxurious kitchen and bath of their dreams. I pay attention to details and I work well with my clients to build their project scope of work. My focus is quality and professionalism!

"I was looking for a pro who was experienced, honest and could communicate to get the job done right. Dave was the man. He knew what I wanted and suggested options to give the project(complete kitchen and bath remodel) a 5 star review. After my rental was completely destroyed from a tenant, I was up a creek without a paddle. Dave and Pablo went above and beyond to create the Reno I was looking for. From the first interview to the end result, I have no reservations for recommending ModernKnight for any project. They were on time , completely transparent and accommodating every step of the way. Are you looking for the pro to get your job done? Look no further, Dave is the guy! Thanks again Dave and Pablo for everything and more! Freddy."

Freddy W on March 2025


Avatar for TRI-STATE BUILDING SPECIALTIES, INC.
TRI-STATE BUILDING SPECIALTIES, INC.
845 Towbin Ave
4.27(
11
)
Approved Pro
TRI-STATE BUILDING SPECIALTIES, INC.
845 Towbin Ave
4.27(
11
)
Approved Pro
Customers say: True professional
309 local quotes requested
34 years of experience

Expand your living space with our expert sunroom and patio enclosure remodeling services! We specialize in designing and transforming outdoor areas into beautiful, functional sunrooms and enclosed patios that you can enjoy year-round. Our skilled team delivers high-quality craftsmanship, using durable materials and personalized designs to enhance your home’s comfort and value. Whether you’re looking to create a cozy sunroom or a versatile patio enclosure, we’re committed to making your vision a reality. Contact us today for a free consultation and start planning your dream space!

"First meeting went very smoothly so far had a great experience with Jason Now will be working with Don the project manager."

Dee A on February 2025

Expand your living space with our expert sunroom and patio enclosure remodeling services! We specialize in designing and transforming outdoor areas into beautiful, functional sunrooms and enclosed patios that you can enjoy year-round. Our skilled team delivers high-quality craftsmanship, using durable materials and personalized designs to enhance your home’s comfort and value. Whether you’re looking to create a cozy sunroom or a versatile patio enclosure, we’re committed to making your vision a reality. Contact us today for a free consultation and start planning your dream space!

"First meeting went very smoothly so far had a great experience with Jason Now will be working with Don the project manager."

Dee A on February 2025


Avatar for Classical Pavers
Classical Pavers
1667 Kenneth Ave
5.00(
47
)
Approved Pro
Classical Pavers
1667 Kenneth Ave
5.00(
47
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
532 local quotes requested

Classical Pavers serves both New Jersey and New York in the Tri-state area. We are masonry contractor company that specializes in the installation of outdoor living areas including paver driveways, walkways, patios, steps, stoops, retaining walls, culture stone, and fire pits. We are fully insured.

"Classical Pavers did a beautiful job replacing my front walkway! It was not a straightforward project because it was built on a steep slope with a curve. The owner Thiago, who oversees the project, was a pleasure to work with -- never used any pressure tactics, was very responsive to any questions, and gave a fair price. The two craftsmen who did the work were amazing! They arrived promptly every day, worked extremely hard, and did absolutely beautiful work. They hauled away all the old materials and tidied everything up when the job was done. We definitely would hire them again for a future project and highly recommend them."

Jessica S on November 2023

Classical Pavers serves both New Jersey and New York in the Tri-state area. We are masonry contractor company that specializes in the installation of outdoor living areas including paver driveways, walkways, patios, steps, stoops, retaining walls, culture stone, and fire pits. We are fully insured.

"Classical Pavers did a beautiful job replacing my front walkway! It was not a straightforward project because it was built on a steep slope with a curve. The owner Thiago, who oversees the project, was a pleasure to work with -- never used any pressure tactics, was very responsive to any questions, and gave a fair price. The two craftsmen who did the work were amazing! They arrived promptly every day, worked extremely hard, and did absolutely beautiful work. They hauled away all the old materials and tidied everything up when the job was done. We definitely would hire them again for a future project and highly recommend them."

Jessica S on November 2023


Avatar for Classic Remodeling Group Inc
Classic Remodeling Group Inc
1839 Bellmore Ave
4.79(
43
)
Approved Pro
Classic Remodeling Group Inc
1839 Bellmore Ave
4.79(
43
)
Approved Pro
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
2269 local quotes requested

Full service remodeling, roofing and siding contractors serving Long Island. Whether you are in need of new roof installation, roof restoration, or roof repairs; new siding installation, siding repairs; new windows & doors installation; kitchen remodeling; bathroom remodeling; we are the Long Island home remodeling contractors to call, due to our professionalism and affordability.

"John and his crew did a fabulous job renovating my bathroom. It was done in a timely manner and they were extremely neat and cleaned up very well after themselves. I would definitely hire them again!"

Denise S on March 2025

Full service remodeling, roofing and siding contractors serving Long Island. Whether you are in need of new roof installation, roof restoration, or roof repairs; new siding installation, siding repairs; new windows & doors installation; kitchen remodeling; bathroom remodeling; we are the Long Island home remodeling contractors to call, due to our professionalism and affordability.

"John and his crew did a fabulous job renovating my bathroom. It was done in a timely manner and they were extremely neat and cleaned up very well after themselves. I would definitely hire them again!"

Denise S on March 2025

...
Showing 1-10 of 915

Second story addition building services FAQs

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 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.
BLUE TWO STORY HOME
Apr 30, 2025
Apr 30, 2025
Budget for the cost to add a second story based on factors such as size, foundation work, materials, labor, permits, post-construction cleaning, and more.
small bathroom that has been updated in a remodel
Apr 29, 2025
Apr 29, 2025
Budget for the cost to remodel a small bathroom based on factors such as required fixtures, bathroom size, labor, remodel type, site prep, and more.
guest house in the backyard
Apr 27, 2025
Apr 27, 2025
Need to build a guest house? Here’s how much it costs, what factors affect cost, and what to expect.
Kitchen view leading into dining area
Apr 28, 2025
Apr 28, 2025
Use this guide to budget for bump-out addition costs based on factors such as room size, room type, labor, finishes, permits, and more.
House roof with nice window
Apr 28, 2025
Apr 28, 2025
Budget for dormer addition costs based on factors such as roof type, framing, customizations, reinforcement, cladding, labor, and more.
newly installed kitchen countertops in modern kitchen
Apr 26, 2025
Apr 26, 2025
Need to replace your kitchen countertop? Here’s how much it costs, what factors affect cost, and what to expect.
Share project details to get started.