Top-rated addition to existing structure builders.

Get matched with top addition to existing structure 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.

Addition to existing structure builders in Seneca Falls

Showing 1-10 of 225
Norcott Contracting
992 Lockpit Rd
3.75(
2
)
Approved Pro
Norcott Contracting
992 Lockpit Rd
3.75(
2
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
32 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!

"Work is not completed as of this time, although I think they are doing a good job it would have been extremely beneficial to know that the quote of the 3 -4 days meant 4 hours the first day and 1 -2 hours the rest. I probably could have been more specific in asking the timeframe to be fair."

Kathy H on March 2019

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!

"Work is not completed as of this time, although I think they are doing a good job it would have been extremely beneficial to know that the quote of the 3 -4 days meant 4 hours the first day and 1 -2 hours the rest. I probably could have been more specific in asking the timeframe to be fair."

Kathy H on March 2019


Avatar for Coverall Building Systems of Massachusetts
Coverall Building Systems of Massachusetts
13635 NY-31
5.00(
1
)
Approved Pro
Coverall Building Systems of Massachusetts
13635 NY-31
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 years of experience

We are 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.

"Great work ethics and program"

Bob L on April 2025

We are 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.

"Great work ethics and program"

Bob L on April 2025


Avatar for M&W Handymen
M&W Handymen
.
5.00(
10
)
Approved Pro
M&W Handymen
.
5.00(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
67 local quotes requested

M&W Remodeling is proud to provide bathroom and kitchen remodel services to the Finger Lakes community. We strive to satisfy all of our customers and will go the extra mile to make sure you're completely satisfied and the vision comes true. We work closely with each client to understand their unique needs and preferences, and our commitment to customer satisfaction means we won't rest until you are 100% happy with our work. Give us a call at the number above.

"In the course of this year, I have had these guys hang door, repair plaster, tile, paint, wallpaper, and repair a window sill. There is nothing they can’t handle! And now my bedroom is gorgeous."

Martha H on December 2024

M&W Remodeling is proud to provide bathroom and kitchen remodel services to the Finger Lakes community. We strive to satisfy all of our customers and will go the extra mile to make sure you're completely satisfied and the vision comes true. We work closely with each client to understand their unique needs and preferences, and our commitment to customer satisfaction means we won't rest until you are 100% happy with our work. Give us a call at the number above.

"In the course of this year, I have had these guys hang door, repair plaster, tile, paint, wallpaper, and repair a window sill. There is nothing they can’t handle! And now my bedroom is gorgeous."

Martha H on December 2024


Avatar for JR Contractors
JR Contractors
Located In Webster, Ny
5.00(
5
)
Approved Pro
JR Contractors
Located In Webster, Ny
5.00(
5
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
616 local quotes requested

We have the experience and dedication to bring your dreams to reality! Please call today to schedule your appointment 1-585-402-8314. We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"Perfect. Job was completed for my mother in law and she is over the moon happy. These guys completed everything on time and on budget. Highly recommend."

Darren S on March 2023

We have the experience and dedication to bring your dreams to reality! Please call today to schedule your appointment 1-585-402-8314. We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"Perfect. Job was completed for my mother in law and she is over the moon happy. These guys completed everything on time and on budget. Highly recommend."

Darren S on March 2023


Avatar for WPP Building and Design
WPP Building and Design
3.88(
8
)
Approved Pro
WPP Building and Design
3.88(
8
)
Approved Pro
Customers say: Terrific value
1013 local quotes requested
4 years of experience

We guarantee your satisfaction from start to finish. We Build, and You'll be Thrilled. Builders - Homes, Remodeling - General, Remodeling - Kitchen & Bathroom -

"Terrible. He broke a valve resulting in a flooded bathroom floor and left an open, leaking pipe that dripped into the basement through an open hole. My family is still without a toilet in that bathroom. The shower basin was the wrong size, so he was going to cut studs near electrical wiring to make it fit. I said that I wanted a Toto toilet. He bought a cheap brand for $150, a brand I have never heard of. We found the receipt in the bathroom. He had many reasons as to why he kept getting detained, one because he said he needed more money. The contract stated 50 percent at signing, another 25 percent upon completion of demo, and the final 25 percent on project completion. I paid him $4,550 on 12/4/2024, CASH. I paid another $1,500 on 12/21/2024 CASH, and $766 on 1/17/2025 CASH. He refused to work unless I paid him on 12/21/2024 because he said he had completed the bathroom demo, and according to the contract, $2,275 was required at completion of bathroom gutting, but the gutting was incomplete with mounds of insulation on the floor and the dumpster was still in our driveway. Even after I explained that the gutting was not complete until all debris was removed and the dumpster was gone, I still paid him, but I did this because he refused to work without this payment. When he began working again, contract specifications were not met. He continued not to show up for work, each time with an excuse, sick children, sick wife, car broke down, etc. I have never heard of a contractor who did not own a truck, but he did not. There were many warning signals, no business cards etc., but I gave him the benefit of the doubt because he had two young children. The contract was signed 12/4/2024 and I terminated his services on 2/11/2025, after 3 months without a toilet, shower, sink, etc. He was angry and threatened to sue me for breach of contract, but the more chances I gave him, the more I realized he had no clue what he was doing. Per your rating below, please clarify your scale, is 1 the best and 5 the worst? I can’t provide a rating with a clear understanding of your rating system. In the end, all he completed was the bathroom demolition. I can live with him keeping $1500 for that, even though it could have been done for much less. I would like a refund of $4,550 as he didn’t complete any work other than the demo and didn’t purchase materials that fit our bathroom requirements. Note: he is going to contest that he did spend money on supplies such as bathroom pipe pieces, toilet, shower enclosure, even though they were the wrong size. He took them from our work site. I pulled thousands of dollars from my retirement account, money that I believed would have resulted in a nice bathroom. My family has endured hardship without the bathroom, and I have been dealing with tremendous stress as a result. It is also taking me extra time to prepare this document for you, time that I need for more important priorities such as my health."

Joan P on March 2025

We guarantee your satisfaction from start to finish. We Build, and You'll be Thrilled. Builders - Homes, Remodeling - General, Remodeling - Kitchen & Bathroom -

"Terrible. He broke a valve resulting in a flooded bathroom floor and left an open, leaking pipe that dripped into the basement through an open hole. My family is still without a toilet in that bathroom. The shower basin was the wrong size, so he was going to cut studs near electrical wiring to make it fit. I said that I wanted a Toto toilet. He bought a cheap brand for $150, a brand I have never heard of. We found the receipt in the bathroom. He had many reasons as to why he kept getting detained, one because he said he needed more money. The contract stated 50 percent at signing, another 25 percent upon completion of demo, and the final 25 percent on project completion. I paid him $4,550 on 12/4/2024, CASH. I paid another $1,500 on 12/21/2024 CASH, and $766 on 1/17/2025 CASH. He refused to work unless I paid him on 12/21/2024 because he said he had completed the bathroom demo, and according to the contract, $2,275 was required at completion of bathroom gutting, but the gutting was incomplete with mounds of insulation on the floor and the dumpster was still in our driveway. Even after I explained that the gutting was not complete until all debris was removed and the dumpster was gone, I still paid him, but I did this because he refused to work without this payment. When he began working again, contract specifications were not met. He continued not to show up for work, each time with an excuse, sick children, sick wife, car broke down, etc. I have never heard of a contractor who did not own a truck, but he did not. There were many warning signals, no business cards etc., but I gave him the benefit of the doubt because he had two young children. The contract was signed 12/4/2024 and I terminated his services on 2/11/2025, after 3 months without a toilet, shower, sink, etc. He was angry and threatened to sue me for breach of contract, but the more chances I gave him, the more I realized he had no clue what he was doing. Per your rating below, please clarify your scale, is 1 the best and 5 the worst? I can’t provide a rating with a clear understanding of your rating system. In the end, all he completed was the bathroom demolition. I can live with him keeping $1500 for that, even though it could have been done for much less. I would like a refund of $4,550 as he didn’t complete any work other than the demo and didn’t purchase materials that fit our bathroom requirements. Note: he is going to contest that he did spend money on supplies such as bathroom pipe pieces, toilet, shower enclosure, even though they were the wrong size. He took them from our work site. I pulled thousands of dollars from my retirement account, money that I believed would have resulted in a nice bathroom. My family has endured hardship without the bathroom, and I have been dealing with tremendous stress as a result. It is also taking me extra time to prepare this document for you, time that I need for more important priorities such as my health."

Joan P on March 2025


TRS Home Remodeling LLC
4.58(
12
)
TRS Home Remodeling LLC
4.58(
12
)
Customers say: Terrific value
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers

Father and son team with multiple years of construction, home improvement, and remodeling experience. We offer everything you need for all of your home improvement needs and dreams.

"Hired to redo my husband's bath as he broke his hip and needed a bench and grab bars, also to update main bath. Gave him requested deposit for both jobs. Never finished husband's bath and bailed on the other. No refund issued, owes me $1600! His contract Is a joke, has incorrect address. If a contractor is available when you ask beware. All the good ones are booked."

Linda H on January 2025

Father and son team with multiple years of construction, home improvement, and remodeling experience. We offer everything you need for all of your home improvement needs and dreams.

"Hired to redo my husband's bath as he broke his hip and needed a bench and grab bars, also to update main bath. Gave him requested deposit for both jobs. Never finished husband's bath and bailed on the other. No refund issued, owes me $1600! His contract Is a joke, has incorrect address. If a contractor is available when you ask beware. All the good ones are booked."

Linda H on January 2025


Auto Transport - United Freight Of America
1844 N Nob Hill Rd
4.82(
941
)
Auto Transport - United Freight Of America
1844 N Nob Hill Rd
4.82(
941
)
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers

United Freight of America is your all inclusive transport solution. CONTACT US FOR A QUOTE. please include pick up and Drop off locations and vehicle information

"Excellent, no problems. My car was new the first year I used the service and there has never been any damage during the transports. The men picking up and delivering the car have always been pleasant and cooperative. Both Ely and Guy at United Transport has been highly responsive to my needs. I would highly recommend this company."

CLAUDIA H on October 2021

United Freight of America is your all inclusive transport solution. CONTACT US FOR A QUOTE. please include pick up and Drop off locations and vehicle information

"Excellent, no problems. My car was new the first year I used the service and there has never been any damage during the transports. The men picking up and delivering the car have always been pleasant and cooperative. Both Ely and Guy at United Transport has been highly responsive to my needs. I would highly recommend this company."

CLAUDIA H on October 2021


DKS Quality Construction
5656 Vistula Path
No reviews
DKS Quality Construction
5656 Vistula Path
No reviews
25 years of experience

DKS Quality Construction is a family owned company located in Brewerton, NY. We also perform work in surrounding counties, especially Oswego County. We specialize in building, remodeling, and custom home work. We believe that quality should always come first, along with customer satisfaction.

DKS Quality Construction is a family owned company located in Brewerton, NY. We also perform work in surrounding counties, especially Oswego County. We specialize in building, remodeling, and custom home work. We believe that quality should always come first, along with customer satisfaction.


Savage contracting
No reviews
Savage contracting
No reviews
2 years of experience

Family owned business. We specialize in kitchen/bathroom remodeling, floors, drywall, painting, pretty much anything except roofs.

Family owned business. We specialize in kitchen/bathroom remodeling, floors, drywall, painting, pretty much anything except roofs.


Sarfaty System Renovations
130 Alaimo Dr
No reviews
Sarfaty System Renovations
130 Alaimo Dr
No reviews
52 years of experience

Founded, owned and managed by K.L. Sarfaty, we have been in business for over 48 years serving the Greater Rochester, NY area. While we specialize in kitchens and bathrooms, any of your interior home improvement, renovation and contracting needs can be met through working with our company! Tile, counter tops, cabinets, painting, repairs, design and so much more can be achieved with us. A home is such an important part of everyone's life and we love being able to create a better environment for the people in our community. Give K.L. a call today to schedule a time to meet at your home 585-738-1796!

Founded, owned and managed by K.L. Sarfaty, we have been in business for over 48 years serving the Greater Rochester, NY area. While we specialize in kitchens and bathrooms, any of your interior home improvement, renovation and contracting needs can be met through working with our company! Tile, counter tops, cabinets, painting, repairs, design and so much more can be achieved with us. A home is such an important part of everyone's life and we love being able to create a better environment for the people in our community. Give K.L. a call today to schedule a time to meet at your home 585-738-1796!

...
Showing 1-10 of 225

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
Apr 24, 2025
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
Apr 22, 2025
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
Apr 21, 2025
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
Apr 19, 2025
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.
Share project details to get started.