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Addition to existing structure builders in North Salem

Avatar for Ipala Landscaping & Construction
Ipala Landscaping & Construction
101 W Hyatt Ave
5.00(
2
)
Approved Pro
Ipala Landscaping & Construction
101 W Hyatt Ave
5.00(
2
)
Approved Pro
1 years of experience
Free onsite estimate

We are 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 services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"I had my basement and garage completely renovated. My wife was close to giving birth when we requested the work and the team made an effort to getting the basement all done before the baby was born. "

Dan R on March 2025

We are 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 services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"I had my basement and garage completely renovated. My wife was close to giving birth when we requested the work and the team made an effort to getting the basement all done before the baby was born. "

Dan R on March 2025


MC Squared Renovations
14 Edgewood Terrace
New on HomeAdvisorNew on Angi
Approved Pro
MC Squared Renovations
14 Edgewood Terrace
New on AngiNew on HomeAdvisor
Approved Pro
9 years of experience
Free onsite estimate

MC Squared Renovations 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.

MC Squared Renovations 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.


Avatar for Finishing Touch Contracting, Inc.
Finishing Touch Contracting, Inc.
Route 123
4.63(
14
)
Approved Pro
Finishing Touch Contracting, Inc.
Route 123
4.63(
14
)
Approved Pro
Customers say: Terrific value
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
28 years of experience

Frank D'Aleo is the founder & owner of Finishing Touch Contracting. With 20 years of experience in the home building and remodeling industry, we can help you improve your home, inside and out.

"Prompt, courteous and helpful, this was one of the best contractor experiences I've had. Frank & his crew at Finishing Touch were great to work with."

Christine M on March 2016

Frank D'Aleo is the founder & owner of Finishing Touch Contracting. With 20 years of experience in the home building and remodeling industry, we can help you improve your home, inside and out.

"Prompt, courteous and helpful, this was one of the best contractor experiences I've had. Frank & his crew at Finishing Touch were great to work with."

Christine M on March 2016


Avatar for TOP BEST QUALITY HOME IMPROVEMENT INC.
TOP BEST QUALITY HOME IMPROVEMENT INC.
1 Calam Ave, Unit 1
5.00(
1
)
Approved Pro
TOP BEST QUALITY HOME IMPROVEMENT INC.
1 Calam Ave, Unit 1
5.00(
1
)
Approved Pro
Customers say: Terrific value
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"Heart full good work"

Aron L on May 2024

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"Heart full good work"

Aron L on May 2024


Avatar for American Pioneer Construction
American Pioneer Construction
185 Cortlandt St
New on HomeAdvisorNew on Angi
Approved Pro
American Pioneer Construction
185 Cortlandt St
New on AngiNew on HomeAdvisor
Approved Pro
32 years of experience
Free onsite estimate

I founded American Pioneer Construction in July 1993 to give my customers top quality design and installation in a timely manner and at a fair and competitive price. Our goal is to help you create your dreams.We are fully licensed in Westchester and Putnam counties in New York. We have a multi million dollar insurance policy which has never been used in 30 years. The reason is that cleanliness and safety are our top priorities. We are on site every day until the job is completed. We have massive experience in indoor and outdoor renovations for your home. Indoors includes kitchens, bathrooms, basements, doors, windows, moldings, additions, and custom cabinet and shelving units of any size. Also, outdoors we build decks, covered porches, walkways, patios, and fire pits. We have built over 300 Koi ponds that have been featured in international magazines and huge pond tours. We also frame/build garages,sheds, and outdoor bars. Give us a call so you can find out how we can help you.

I founded American Pioneer Construction in July 1993 to give my customers top quality design and installation in a timely manner and at a fair and competitive price. Our goal is to help you create your dreams.We are fully licensed in Westchester and Putnam counties in New York. We have a multi million dollar insurance policy which has never been used in 30 years. The reason is that cleanliness and safety are our top priorities. We are on site every day until the job is completed. We have massive experience in indoor and outdoor renovations for your home. Indoors includes kitchens, bathrooms, basements, doors, windows, moldings, additions, and custom cabinet and shelving units of any size. Also, outdoors we build decks, covered porches, walkways, patios, and fire pits. We have built over 300 Koi ponds that have been featured in international magazines and huge pond tours. We also frame/build garages,sheds, and outdoor bars. Give us a call so you can find out how we can help you.


Dannick Carpentry, LLC
41 Old Lantern Rd
5.00(
1
)
Approved Pro
Dannick Carpentry, LLC
41 Old Lantern Rd
5.00(
1
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 years of experience

Dannick Capentry 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.

"Dan and his team are very professional and very experienced."

Lynn U on June 2023

Dannick Capentry 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.

"Dan and his team are very professional and very experienced."

Lynn U on June 2023


Avatar for Douglas Marshall Cooper Associates, LLC
Douglas Marshall Cooper Associates, LLC
57 Westchester Avenue
4.63(
22
)
Approved Pro
Douglas Marshall Cooper Associates, LLC
57 Westchester Avenue
4.63(
22
)
Approved Pro
Customers say: Quick response
29 years of experience
Free onsite estimate

Douglas Marshall Cooper Associates is a full-service design and construction firm whose practice encompasses both new and existing buildings of residential and commercial use, as well as speculative housing and development. Mr. Cooper’s office is located in Pound Ridge, New York and includes a staff of himself, an associate partner, three assistants and a host of carpenters, masons, and laborers, in addition to various subcontractors that work on projects small to large. Douglas Marshall Cooper Associate’s roots are based in Construction, Design, Real Estate Investment and Development & Construction Management. Our portfolio includes a wide range of work across these fields. Our uniqueness comes from understanding what it is to be the Owner, the Developer and the Builder –- a trifecta that is evident in DMC Associate’s core portfolio of prestigious residential, commercial, and corporate projects. Douglas Marshall Cooper Associates, LLC...a solid track record. A powerful future.

"I wish I could give zero stars. We hired Douglas for a kitchen remodel which involved installing a kitchen island, pantry, and all the related plumbing and electrical work. The communication between Douglas and his carpenter was terrible. We submitted sketches and agreed upon the design for the cabinets which were meant to be overlaid. When the island arrived, the cabinets were inset which did not match the rest of the kitchen. In addition, the kitchen island has split and cracked at more than half of the joints. The pantry cabinet has split and areas of unpainted MDF are showing. We have needed to paint and touch up many of these spots. Regarding the plumbing, we have had multiple significant leaks from piping and tubing that the team installed. Water has leaked even through the floor and into the basement. Upon review from other plumbers, all have confirmed the parts used were cheap and of low quality, and the workmanship was subpar. After a major leak in the middle of the night, we reached out to Douglas and respectfully voiced our issues and complaints. He ignored us for a full month, and then instead of simply stopping by to take a look at the problems (which would have been the first major step to alleviating our frustrations), he responded in a despicable manner. He even included the following quote from his lawyer, He laughed saying that perhaps you lost your job (due to the CoronaVirus) and were probably scrounging for any money you could scrape up. Who would want to work with someone like this?"

Keri P on October 2020

Douglas Marshall Cooper Associates is a full-service design and construction firm whose practice encompasses both new and existing buildings of residential and commercial use, as well as speculative housing and development. Mr. Cooper’s office is located in Pound Ridge, New York and includes a staff of himself, an associate partner, three assistants and a host of carpenters, masons, and laborers, in addition to various subcontractors that work on projects small to large. Douglas Marshall Cooper Associate’s roots are based in Construction, Design, Real Estate Investment and Development & Construction Management. Our portfolio includes a wide range of work across these fields. Our uniqueness comes from understanding what it is to be the Owner, the Developer and the Builder –- a trifecta that is evident in DMC Associate’s core portfolio of prestigious residential, commercial, and corporate projects. Douglas Marshall Cooper Associates, LLC...a solid track record. A powerful future.

"I wish I could give zero stars. We hired Douglas for a kitchen remodel which involved installing a kitchen island, pantry, and all the related plumbing and electrical work. The communication between Douglas and his carpenter was terrible. We submitted sketches and agreed upon the design for the cabinets which were meant to be overlaid. When the island arrived, the cabinets were inset which did not match the rest of the kitchen. In addition, the kitchen island has split and cracked at more than half of the joints. The pantry cabinet has split and areas of unpainted MDF are showing. We have needed to paint and touch up many of these spots. Regarding the plumbing, we have had multiple significant leaks from piping and tubing that the team installed. Water has leaked even through the floor and into the basement. Upon review from other plumbers, all have confirmed the parts used were cheap and of low quality, and the workmanship was subpar. After a major leak in the middle of the night, we reached out to Douglas and respectfully voiced our issues and complaints. He ignored us for a full month, and then instead of simply stopping by to take a look at the problems (which would have been the first major step to alleviating our frustrations), he responded in a despicable manner. He even included the following quote from his lawyer, He laughed saying that perhaps you lost your job (due to the CoronaVirus) and were probably scrounging for any money you could scrape up. Who would want to work with someone like this?"

Keri P on October 2020


Avatar for Thomas J. Curro Architect, P.C.
Thomas J. Curro Architect, P.C.
42 Lake Avenue EXT Suite 164
4.83(
27
)
Approved Pro
Thomas J. Curro Architect, P.C.
42 Lake Avenue EXT Suite 164
4.83(
27
)
Approved Pro
Customers say: Quick response
26 years of experience

Every construction project has inherent struggle and stress on the journey to successful completion. From bureaucratic red tape with municipalities to working within financial constraints to communication frustrations with construction professionals, clients need a guide to help them navigate the challenges of their project. With over 25 years of experience as a licensed architect, Tom has confronted all manner of challenges and their accompanying stress and frustration with the primary goal of taking the stress out of the construction project for his clients. As your guide throughout the project, he stands ready to educate you, advocate for you, and of course, provide you with excellent architectural drawings that pave the way to a smooth building process and superior end product. Tom offers his clients more than just a completed set of architectural plans. They also walk away with the peace of mind that comes from a job well designed and executed, from start to finish.

"null"

Maria D on January 2019

Every construction project has inherent struggle and stress on the journey to successful completion. From bureaucratic red tape with municipalities to working within financial constraints to communication frustrations with construction professionals, clients need a guide to help them navigate the challenges of their project. With over 25 years of experience as a licensed architect, Tom has confronted all manner of challenges and their accompanying stress and frustration with the primary goal of taking the stress out of the construction project for his clients. As your guide throughout the project, he stands ready to educate you, advocate for you, and of course, provide you with excellent architectural drawings that pave the way to a smooth building process and superior end product. Tom offers his clients more than just a completed set of architectural plans. They also walk away with the peace of mind that comes from a job well designed and executed, from start to finish.

"null"

Maria D on January 2019


Avatar for Kellets Anchored Home Improvement LLC
Kellets Anchored Home Improvement LLC
11 Colonial Rd
5.00(
2
)
Approved Pro
Kellets Anchored Home Improvement LLC
11 Colonial Rd
5.00(
2
)
Approved Pro
Customers say: Quick response
16 local quotes requested
2 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Done quickly and conscientious"

Morgan E on April 2024

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Done quickly and conscientious"

Morgan E on April 2024


Avatar for Dynamic Design & Remodeling
Dynamic Design & Remodeling
110 Audubon Lane
5.00(
14
)
Approved Pro
Dynamic Design & Remodeling
110 Audubon Lane
5.00(
14
)
Approved Pro
Super Service Award
Customers say: Terrific value
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2 years of experience

We offer free estimates for any size project : kitchens, bathrooms, exteriors, roofing, additions, decks, bedrooms, basements, or even an entire home. We also provide design work with multiple photo realistic renderings and 360° views along with full floorplans and elevations, so you can really envision your new space before you build it. We help to guide our clients through every stage of a renovation so that it comes in on time and on budget. Call us today at 203-644-9124.

"I highly recommend DDR. There are so many contractors out there and it is difficult to know what youâ ll get when you hire someone, from the quality of the work to the level of communication. This team did a great job from start to finish, and delivered a beautiful new space for my family. We selected DDR after getting multiple bids to update our walk-out basement into a more livable space. Key in this selection -- the price was competitive, and the team seemed attentive to the project needs as outlined. I had a tight budget and relatively aggressive timeline for this project. Admittedly the timeline was impacted by a few things that were out of DDRâ s control, including the Town building inspectorâ s schedule and a delivery delay (a new window arrived damaged and had to be reordered.) Nevertheless, the team stayed on budget and delivered a wonderful new basement. What a great project team -- led by Alex, the team (including John + Angel) truly transformed a dark dingy space into a bright fresh room. Alex was very thoughtful in suggesting options that would improve things and was exceptionally attentive to detail. He was super responsive to any texts or questions. In particular, I appreciated his high level of â perfectionismâ in how the finished product turned out. For phase 2, we need some custom cabinetry built for the space and I look forward to having the DDR team return to work on this next phase."

Alison F on November 2024

We offer free estimates for any size project : kitchens, bathrooms, exteriors, roofing, additions, decks, bedrooms, basements, or even an entire home. We also provide design work with multiple photo realistic renderings and 360° views along with full floorplans and elevations, so you can really envision your new space before you build it. We help to guide our clients through every stage of a renovation so that it comes in on time and on budget. Call us today at 203-644-9124.

"I highly recommend DDR. There are so many contractors out there and it is difficult to know what youâ ll get when you hire someone, from the quality of the work to the level of communication. This team did a great job from start to finish, and delivered a beautiful new space for my family. We selected DDR after getting multiple bids to update our walk-out basement into a more livable space. Key in this selection -- the price was competitive, and the team seemed attentive to the project needs as outlined. I had a tight budget and relatively aggressive timeline for this project. Admittedly the timeline was impacted by a few things that were out of DDRâ s control, including the Town building inspectorâ s schedule and a delivery delay (a new window arrived damaged and had to be reordered.) Nevertheless, the team stayed on budget and delivered a wonderful new basement. What a great project team -- led by Alex, the team (including John + Angel) truly transformed a dark dingy space into a bright fresh room. Alex was very thoughtful in suggesting options that would improve things and was exceptionally attentive to detail. He was super responsive to any texts or questions. In particular, I appreciated his high level of â perfectionismâ in how the finished product turned out. For phase 2, we need some custom cabinetry built for the space and I look forward to having the DDR team return to work on this next phase."

Alison F on November 2024

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Addition to existing structure building services FAQs

Building an in-law suite takes between two and seven months. Converting an existing basement, attic, or room can be done in about two months. Constructing a new addition or detached suite often takes four to five months for construction, plus one to two months for permits. The bigger the suite, the longer it will take. 

Yes, you can build an in-law suite in your backyard if you meet local building codes and zoning regulations. An in-law suite often occupies 300 to 800 square feet. Be sure to follow size restrictions, utility separations, and entrance requirements. Hiring a qualified contractor ensures you meet all regulatory requirements because they can pull permits, double-check local code, and gather other skilled pros to work on your suite. 

The 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.
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An in-law suite is a great solution for people who have family visiting often. Explore how much an in-law suite costs and prep to build yours.
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Outdoor view of the modern house
Apr 22, 2025
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Explore how square footage, room type, home additions, and other common factors affect house renovation costs with our detailed cost guide.
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Apr 21, 2025
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Discover how much a log cabin costs to build, exploring how factors like its size, site prep, utilities, finishes, and labor rates affect the total price.
CONTRACTOR LOOKING OVER HOME DEVELOPMENT
Apr 19, 2025
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Budget for your general contractor’s hourly rate by considering factors such as project scope, fee structure, pricing model, and more.
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Apr 16, 2025
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Work out the full cost to repair earthquake damage based on the type of damage, including foundation issues, utility lines, and cracked walls.
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