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Addition to existing structure builders in Buffalo

A & W General Contractors
82 East Cavalier Dr
5.00(
1
)
Approved Pro
A & W General Contractors
82 East Cavalier Dr
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
24 years of experience

A & W General Contractors 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.

"Very professional, on time thorough, & within budget, great work!"

Lee T on July 2023

A & W General Contractors 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.

"Very professional, on time thorough, & within budget, great work!"

Lee T on July 2023


Legacy Construction and Management
1154 N Forest Rd
New on HomeAdvisorNew on Angi
Approved Pro
Legacy Construction and Management
1154 N Forest Rd
New on AngiNew on HomeAdvisor
Approved Pro
4 years of experience
Free onsite estimate

Legacy Construction and Management 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. 50+ years experience

Legacy Construction and Management 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. 50+ years experience


Quality Craft Contracting
5200 Merlau Road
4.90(
5
)
Approved Pro
Quality Craft Contracting
5200 Merlau Road
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

Here at Quality Craft Contracting, no job is too big. From custom renovations to your dream house built from the ground up, our team and our 70 years of combined experience execute with quality on time, every time. Call us for a free estimate today and check out our website! www.qualitycraftcontracting.com BBB Accredited

"We are in the beginning stages of a Master Bath, Walk in Closet & Laundry room addition. So far so good!"

Paula M on October 2017

Here at Quality Craft Contracting, no job is too big. From custom renovations to your dream house built from the ground up, our team and our 70 years of combined experience execute with quality on time, every time. Call us for a free estimate today and check out our website! www.qualitycraftcontracting.com BBB Accredited

"We are in the beginning stages of a Master Bath, Walk in Closet & Laundry room addition. So far so good!"

Paula M on October 2017


Avatar for Schultz Renovation And Construction, Inc.
Schultz Renovation And Construction, Inc.
49 Green Terrace
5.00(
2
)
Approved Pro
Schultz Renovation And Construction, Inc.
49 Green Terrace
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

Welcome to Schultz Renovation and Construction Inc., proudly servicing Depew and the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed.

"Christian is very conscientious about what he is doing, does a good job and cleans up afterwards. Quite a bit of the work he did was when we were gone so I'd leave him a key. He is very trustworthy."

Jim W on March 2021

Welcome to Schultz Renovation and Construction Inc., proudly servicing Depew and the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed.

"Christian is very conscientious about what he is doing, does a good job and cleans up afterwards. Quite a bit of the work he did was when we were gone so I'd leave him a key. He is very trustworthy."

Jim W on March 2021


Avatar for Ehrhart Construction Management Services, Inc.
Ehrhart Construction Management Services, Inc.
4783 Freeman Rd
5.00(
3
)
Approved Pro
Ehrhart Construction Management Services, Inc.
4783 Freeman Rd
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

Ehrhart Construction Management Services, Inc., we make dreams come true. With many years of experience, this phrase has become more than a catchy slogan, it is simply the way we do business. We offer quality, professionalism and competitive pricing for every job, regardless of project size. Customer satisfaction is our primary goal.

"Bryan and his team did an excellent job, it was a nassive project with the creation of a master sweet as well as mudroom and an additional beadroom. Very friendly and professional"

Christopher H on December 2019

Ehrhart Construction Management Services, Inc., we make dreams come true. With many years of experience, this phrase has become more than a catchy slogan, it is simply the way we do business. We offer quality, professionalism and competitive pricing for every job, regardless of project size. Customer satisfaction is our primary goal.

"Bryan and his team did an excellent job, it was a nassive project with the creation of a master sweet as well as mudroom and an additional beadroom. Very friendly and professional"

Christopher H on December 2019


Avatar for Bilt Rite
Bilt Rite
35 Pine Grove Court
4.36(
45
)
Approved Pro
Bilt Rite
35 Pine Grove Court
4.36(
45
)
Approved Pro
Customers say: Quality work
10 local quotes requested
68 years of experience

We take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"We recently had a project from Bilt Rite completed. The owner Mike was very helpful throughout the entire process. Was quoted a 3 week timeframe to complete the project and it was done on time. Even added on a new kitchen floor installation after we signed a contract, still finished on time. It is a process for the entire project but Mike was very helpful throughout. Not pushy either. You will get exactly what you envision for your remodel. Good contractors are hard to find, this is your answer."

Mark G on June 2023

We take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"We recently had a project from Bilt Rite completed. The owner Mike was very helpful throughout the entire process. Was quoted a 3 week timeframe to complete the project and it was done on time. Even added on a new kitchen floor installation after we signed a contract, still finished on time. It is a process for the entire project but Mike was very helpful throughout. Not pushy either. You will get exactly what you envision for your remodel. Good contractors are hard to find, this is your answer."

Mark G on June 2023


Avatar for Handy Help Experts
Handy Help Experts
5.00(
12
)
Approved Pro
Handy Help Experts
5.00(
12
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
719 local quotes requested

***Professional Home Remodeling & Repair Services*** -20+ years experience in various trades like plumbing, electrical, heat and cooling, drywall, and basic home repairs -100% customer satisfaction is our goal and offer a 1 year warranty on all our work -Licensed, Fully Insured, & Bonded ***We look forward to helping you with all your home remodeling and repair projects!***

"The services were performed with excellence. Trustworthy, professional and very helpful."

Leonard M on November 2024

***Professional Home Remodeling & Repair Services*** -20+ years experience in various trades like plumbing, electrical, heat and cooling, drywall, and basic home repairs -100% customer satisfaction is our goal and offer a 1 year warranty on all our work -Licensed, Fully Insured, & Bonded ***We look forward to helping you with all your home remodeling and repair projects!***

"The services were performed with excellence. Trustworthy, professional and very helpful."

Leonard M on November 2024


Avatar for Anthony Home Renovations
Anthony Home Renovations
870 Lee Ave
5.00(
2
)
Approved Pro
Anthony Home Renovations
870 Lee Ave
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
349 local quotes requested

Anthony Home Renovations is an owner operated company located in North Tonawanda. We specialize in bathroom & kitchen remodel, flooring, decks, additions, overhangs, framing, window & door installation, all your drywall needs, paint, and more. 15+ years of experience who takes pride and craftsmanship in everything we do with great customer service!

"Nick was a pleasure to work with and his team of Collin and Mike. The house turned out much better than expected. Will be hiring them again for more projects."

Darlene B on October 2024

Anthony Home Renovations is an owner operated company located in North Tonawanda. We specialize in bathroom & kitchen remodel, flooring, decks, additions, overhangs, framing, window & door installation, all your drywall needs, paint, and more. 15+ years of experience who takes pride and craftsmanship in everything we do with great customer service!

"Nick was a pleasure to work with and his team of Collin and Mike. The house turned out much better than expected. Will be hiring them again for more projects."

Darlene B on October 2024


Avatar for Joe Violanti Independent Contractor
Joe Violanti Independent Contractor
2233 New Jerusalem Rd.
5.00(
15
)
Approved Pro
Joe Violanti Independent Contractor
2233 New Jerusalem Rd.
5.00(
15
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
181 local quotes requested

(716)-255-3663 is my direct line I specialize bathrooms and general remodel work for residential property's. Have been doing this work for over 15 years. Fully insured through Farmers. Specializing in remodel work kitchens and bathrooms, drywall repair, painting, flooring, trim work , window and door replacment , composite and wood decking, , vinyl siding, lighting,property management , trash outs, . Call (716)2553663 or click for your quote today.

"Went very well. Kitchen looks totally different. Came to work everyday with a smile and enthusiasm to get the job done. Very professional and made recommendations for better improvement. Made my small kitchen look larger. I am very pleased with his work. I would definitely recommend him to friends and family! Thank You!"

robert j on April 2025

(716)-255-3663 is my direct line I specialize bathrooms and general remodel work for residential property's. Have been doing this work for over 15 years. Fully insured through Farmers. Specializing in remodel work kitchens and bathrooms, drywall repair, painting, flooring, trim work , window and door replacment , composite and wood decking, , vinyl siding, lighting,property management , trash outs, . Call (716)2553663 or click for your quote today.

"Went very well. Kitchen looks totally different. Came to work everyday with a smile and enthusiasm to get the job done. Very professional and made recommendations for better improvement. Made my small kitchen look larger. I am very pleased with his work. I would definitely recommend him to friends and family! Thank You!"

robert j on April 2025


Avatar for PR Carpentry
PR Carpentry
12 Humboldt Place
4.96(
25
)
Approved Pro
PR Carpentry
12 Humboldt Place
4.96(
25
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
449 local quotes requested

We specialize in all phases of remodeling for your home and business, including but not limited to.. Home additions. Kitchen remodels. Construction and repair of decks and porches. Installation and/or renovation of stairs and railings. Installation and repair of interior and exterior doors. Faux/Mitered beam construction and installation. Construction and installation of floating shelves and mantles. Installation of Crown molding/wainscoting. Installation of windows and door casing. Hardwood or laminate flooring and baseboards installation. Personalization of above mentioned materials using paint or stain. We pride ourselves on the quality work we provide, while delivering great customer service! Call -or- click to schedule a free estimate today!

"Paulo and his crew were easy to work with, they did a fantastic job transforming our bathroom to a new updated space! We will be using him again in the future for any remodeling we end up doing! Would recommend him to anyone"

Sean H on April 2025

We specialize in all phases of remodeling for your home and business, including but not limited to.. Home additions. Kitchen remodels. Construction and repair of decks and porches. Installation and/or renovation of stairs and railings. Installation and repair of interior and exterior doors. Faux/Mitered beam construction and installation. Construction and installation of floating shelves and mantles. Installation of Crown molding/wainscoting. Installation of windows and door casing. Hardwood or laminate flooring and baseboards installation. Personalization of above mentioned materials using paint or stain. We pride ourselves on the quality work we provide, while delivering great customer service! Call -or- click to schedule a free estimate today!

"Paulo and his crew were easy to work with, they did a fantastic job transforming our bathroom to a new updated space! We will be using him again in the future for any remodeling we end up doing! Would recommend him to anyone"

Sean H on April 2025

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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.
BRIGHT OPEN ATTIC SPACE
Apr 24, 2025
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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.
A white wood ceiling
Apr 23, 2025
Apr 23, 2025
Looking to vault a ceiling? Here’s how much it costs, what factors affect cost, and what to expect.
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.
A rustic wooden cabin in the woods
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.
stucco home with cracks from earthquake damage
Apr 16, 2025
Apr 16, 2025
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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