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Find Addition to existing structure builders in New Haven

Avatar for D & F Construction LLC

D & F Construction LLC

5.00(
8
)
Approved Pro

D & F Construction LLC

5.00(
8
)
Approved Pro
6 years of experience
Free onsite estimate

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!

" “Excellent experience. They completely remodeled my basement and the result was beautiful. The team was very professional, responsible, and met the agreed timelines. They were always attentive to details and to my ideas. I am very happy with the result and I highly recommend them.”"

Nancy L on January 2026

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!

" “Excellent experience. They completely remodeled my basement and the result was beautiful. The team was very professional, responsible, and met the agreed timelines. They were always attentive to details and to my ideas. I am very happy with the result and I highly recommend them.”"

Nancy L on January 2026


Avatar for J A L Construction

J A L Construction

5.00(
7
)
Approved Pro

J A L Construction

5.00(
7
)
Approved Pro
Customers say: Quick response
51 years of experience
Free onsite estimate

J A L Construction has over 50 years of experience delivering high-quality construction and remodeling services. Our experience speaks for itself—we take pride in reliability, clear communication, and craftsmanship that stands the test of time. Whether you’re planning a full home addition, remodeling your kitchen or bathroom, or updating your exterior, we bring skill and dedication to every job. Our services include additions, major renovations, kitchen and bath remodels, deck and porch builds, siding installation, structural steel beam work, window replacement, and brick, stone, or paver patios and walkways. We work closely with homeowners to understand their vision and deliver results that exceed expectations. At J A L Construction, no job is too big or small. We look forward to earning your trust and helping bring your next project to life.

"George Monroe is the best of the best! He was kind, honest, efficient, hardworking, knowledgeable, and experienced. He did an outstanding job on all the work we gave him from building a deck, to painting and repairing to replacing stone steps. Everything he did was perfect and he did it with a smile and a sense of humor along with impeccable work! I would highly recommend him to anyone - he is excellent! "

Joel F on December 2025

J A L Construction has over 50 years of experience delivering high-quality construction and remodeling services. Our experience speaks for itself—we take pride in reliability, clear communication, and craftsmanship that stands the test of time. Whether you’re planning a full home addition, remodeling your kitchen or bathroom, or updating your exterior, we bring skill and dedication to every job. Our services include additions, major renovations, kitchen and bath remodels, deck and porch builds, siding installation, structural steel beam work, window replacement, and brick, stone, or paver patios and walkways. We work closely with homeowners to understand their vision and deliver results that exceed expectations. At J A L Construction, no job is too big or small. We look forward to earning your trust and helping bring your next project to life.

"George Monroe is the best of the best! He was kind, honest, efficient, hardworking, knowledgeable, and experienced. He did an outstanding job on all the work we gave him from building a deck, to painting and repairing to replacing stone steps. Everything he did was perfect and he did it with a smile and a sense of humor along with impeccable work! I would highly recommend him to anyone - he is excellent! "

Joel F on December 2025


Avatar for JR General Contractor, LLC

JR General Contractor, LLC

4.83(
15
)
Approved Pro

JR General Contractor, LLC

4.83(
15
)
Approved Pro
Customers say: Quick response
16 years of experience
Free onsite estimate

JR General Contractor LLC, is committed to excellence 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.

"Yes they did an excellent job"

Louise R on May 2025

JR General Contractor LLC, is committed to excellence 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.

"Yes they did an excellent job"

Louise R on May 2025


Avatar for Devore & Company, LLC

Devore & Company, LLC

5.00(
1
)
Approved Pro

Devore & Company, LLC

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

We're 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 Home Improvement services that are customizable to each individual project. We specialize in Additions and Kitchen Remodels, but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"N/A"

Moira W on May 2021

We're 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 Home Improvement services that are customizable to each individual project. We specialize in Additions and Kitchen Remodels, but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"N/A"

Moira W on May 2021


C & C Quality Home Improvements, LLC

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

C & C Quality Home Improvements, LLC

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
13 local quotes requested
22 years of experience

Great Alaska Tree Company is an experienced tree service specialist, who offers professional and affordable tree care in Fairbanks AK. Do not hesitate and call us today! Tree Maintenance, Tree Care, Tree Specialist, Tree Expert, Tree Trimming College AK;Ester AK;Fox AK;North Pole AK;Moose Creek AK Tree Service, Tree Trimming, Tree Specialist, Tree Surgeon, Tree Maintenance http://greatalaskatreecompanyfairbanksak.com/

Great Alaska Tree Company is an experienced tree service specialist, who offers professional and affordable tree care in Fairbanks AK. Do not hesitate and call us today! Tree Maintenance, Tree Care, Tree Specialist, Tree Expert, Tree Trimming College AK;Ester AK;Fox AK;North Pole AK;Moose Creek AK Tree Service, Tree Trimming, Tree Specialist, Tree Surgeon, Tree Maintenance http://greatalaskatreecompanyfairbanksak.com/


C&C Quality Home Improvements

4.30(
93
)
Approved Pro

C&C Quality Home Improvements

4.30(
93
)
Approved Pro
Customers say: Terrific value
21 local quotes requested
23 years of experience

We are an interior renovations company. We have been in business for over 15 years. We have a strong focus on the quality of our work and strive to make each and every customer happy.

We are an interior renovations company. We have been in business for over 15 years. We have a strong focus on the quality of our work and strive to make each and every customer happy.


Avatar for Noah D. Garvey

Noah D. Garvey

4.98(
95
)
Approved Pro

Noah D. Garvey

4.98(
95
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
14 years of experience

With many years of experience under our belt, we are your first choice in excellent quality with an emphasis on customer satisfaction. We are locally owned and operated and there is an owner present on each project. We get it done the first time, so call us today for a free estimate! Please, no on-line quotes, thank you!

"Noah and his team were great. They built a master bedroom addition over our garage. Noahâ s communication was excellent, his team was always on time and cleaned up after themselves every day, and they did quality work. I would use Noah again and recommend him to anyone looking to do a home renovation project."

Dan M on March 2024

With many years of experience under our belt, we are your first choice in excellent quality with an emphasis on customer satisfaction. We are locally owned and operated and there is an owner present on each project. We get it done the first time, so call us today for a free estimate! Please, no on-line quotes, thank you!

"Noah and his team were great. They built a master bedroom addition over our garage. Noahâ s communication was excellent, his team was always on time and cleaned up after themselves every day, and they did quality work. I would use Noah again and recommend him to anyone looking to do a home renovation project."

Dan M on March 2024


Avatar for Everything Under The Roof LLC

Everything Under The Roof LLC

4.95(
37
)
Approved Pro

Everything Under The Roof LLC

4.95(
37
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
20 years of experience

We pride ourselves on being a unique construction company. Everything Under the Roof is an interior, residential construction company owned by Kim and Jay Spanier. At work we are a husband and wife team, but at home we are mom and dad, so we truly understand the importance of keeping your project orderly and on time, while keeping your family (including your pets) safe. We can also guarantee NO high pressure sales calls, and no crabby, condescending construction guys working on your home improvement project – just our family helping yours! Kim is your main point of contact through the project. She walks you through the construction process, acts as your personal construction jargon translator, and, most importantly, she is the budget master. Kim will help you shop for materials so that you stay on budget. Jay is the jobsite superintendent. He manages the day to day activities of your remodeling/construction project, he coordinates and manages the sub-contractors, and it’s his skillful carpentry that will transform your home. All of our projects work within the existing footprint of your house. What exactly does that mean? Well, in a nut shell, we don’t do additions, and we won’t raise your roof. We find all the hidden, un-used spaces in your house and re-create your floor plan to work for you and your family.

"My wife and I needed to finish our basement to accommodate our growing kids. We had an excellent experience with Everything Under The Roof. They really listened to what we wanted to build and everything was done well, on-time, and on-budget. One thing I particularly appreciated is that the owner was onsite doing the work, and not simply sending a team of workers. We'll definitely be using Everything Under The Roof for any future projects. "

Thomas H on September 2025

We pride ourselves on being a unique construction company. Everything Under the Roof is an interior, residential construction company owned by Kim and Jay Spanier. At work we are a husband and wife team, but at home we are mom and dad, so we truly understand the importance of keeping your project orderly and on time, while keeping your family (including your pets) safe. We can also guarantee NO high pressure sales calls, and no crabby, condescending construction guys working on your home improvement project – just our family helping yours! Kim is your main point of contact through the project. She walks you through the construction process, acts as your personal construction jargon translator, and, most importantly, she is the budget master. Kim will help you shop for materials so that you stay on budget. Jay is the jobsite superintendent. He manages the day to day activities of your remodeling/construction project, he coordinates and manages the sub-contractors, and it’s his skillful carpentry that will transform your home. All of our projects work within the existing footprint of your house. What exactly does that mean? Well, in a nut shell, we don’t do additions, and we won’t raise your roof. We find all the hidden, un-used spaces in your house and re-create your floor plan to work for you and your family.

"My wife and I needed to finish our basement to accommodate our growing kids. We had an excellent experience with Everything Under The Roof. They really listened to what we wanted to build and everything was done well, on-time, and on-budget. One thing I particularly appreciated is that the owner was onsite doing the work, and not simply sending a team of workers. We'll definitely be using Everything Under The Roof for any future projects. "

Thomas H on September 2025


Avatar for M Adorno, LLC

M Adorno, LLC

5.00(
4
)
Approved Pro

M Adorno, LLC

5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
Free onsite estimate

M Adorno, LLC is your go-to partner for all your remodeling and construction needs. With expertise in kitchen and bathroom remodeling, as well as residential and commercial construction, we bring your vision to life. Our team of skilled professionals is committed to delivering exceptional results that exceed your expectations. Contact us today to transform your space into something extraordinary.

"I ordered a shed from Walmart not realizing the challenges associated with putting it together. Thankfully, Angie’s list had a handyman available to help me!"

Lara Y on November 2019

M Adorno, LLC is your go-to partner for all your remodeling and construction needs. With expertise in kitchen and bathroom remodeling, as well as residential and commercial construction, we bring your vision to life. Our team of skilled professionals is committed to delivering exceptional results that exceed your expectations. Contact us today to transform your space into something extraordinary.

"I ordered a shed from Walmart not realizing the challenges associated with putting it together. Thankfully, Angie’s list had a handyman available to help me!"

Lara Y on November 2019


RNB Home Improvement, LLC

5.00(
1
)
Approved Pro

RNB Home Improvement, LLC

5.00(
1
)
Approved Pro
11 years of experience
Free onsite estimate

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 10 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"We had RNB Home Improvement remodel our kitchen and first floor bathroom. Mike Brickly was an absolute pleasure to deal with over the length of the project. He provided helpful suggestions and advice throughout the process. He promptly arrived for appointments and responded in a timely manner to calls. He went above and beyond at times to complete the project within the estimated timeframe. We are extremely happy with the result. His subcontractors were all professional and did great work. Mike extends great effort to assure customer satisfaction. Mike has completed other smaller projects for us, and we would wholeheartedly recommend him."

Robert M on September 2025

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 10 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"We had RNB Home Improvement remodel our kitchen and first floor bathroom. Mike Brickly was an absolute pleasure to deal with over the length of the project. He provided helpful suggestions and advice throughout the process. He promptly arrived for appointments and responded in a timely manner to calls. He went above and beyond at times to complete the project within the estimated timeframe. We are extremely happy with the result. His subcontractors were all professional and did great work. Mike extends great effort to assure customer satisfaction. Mike has completed other smaller projects for us, and we would wholeheartedly recommend him."

Robert M on September 2025

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FAQs for addition to existing structure building service projects in New Haven, CT

You can typically raise your roof by four to eight feet, depending on your home's structure and roof design. The exact amount depends on factors like roof slope and framing support. Raising the roof creates additional interior space, enhances natural light, and increases your home's value. Consult a professional to determine the feasible height increase for your home.

Yes, you need a building permit to raise your roof. Obtaining a building permit ensures your project complies with local building codes and safety regulations. A professional contractor can assist with the permit and inspection process and ensure all legal and safety requirements are met. Your contractor will be familiar with building codes in your area, which can differ between cities or states.

While it's possible to raise a flat roof, it requires extensive structural modifications. Flat roofs lack the attic space and support structures of pitched roofs, so raising them involves significant engineering to ensure safety and durability. This process can be complex and costly, so professional assessment is essential before undertaking a project of this magnitude.

The New Haven, CT 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.