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Find Addition to existing structure builders in Hamden

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 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


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
11 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/


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 SRC Partners

SRC Partners

5.00(
6
)
Approved Pro

SRC Partners

5.00(
6
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 years of experience

New Home Contractor with the staff and Knowledge to build your home on time and on budget. Licensed and Insured since 2015 with over 20 years experience in the new construction business. Let us work with you to build the home of your dreams!!

"Bob and his crew are phenomenal. They are very professional and attentive to detail. All in all just a pleasure to work with. Couldn’t be happier with this project."

Jeremy M on May 2023

New Home Contractor with the staff and Knowledge to build your home on time and on budget. Licensed and Insured since 2015 with over 20 years experience in the new construction business. Let us work with you to build the home of your dreams!!

"Bob and his crew are phenomenal. They are very professional and attentive to detail. All in all just a pleasure to work with. Couldn’t be happier with this project."

Jeremy M on May 2023


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 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


CSM Development Group, LLC

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

CSM Development Group, LLC

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

CSM Development Group, LLC is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

CSM Development Group, LLC is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!


Avatar for Edidel Construction, LLC

Edidel Construction, LLC

5.00(
10
)
Approved Pro

Edidel Construction, LLC

5.00(
10
)
Approved Pro
Customers say: Quick response
58 local quotes requested
2 years of experience

Edidel Construction is a family-owned business specializing in roofing, siding, decking, and window installations. With over 30 yrs of combined experience, we pride ourselves on delivering top-notch craftsmanship and personalized service to every client. Founded by the Oyarzun family and a woman owned registered business, our company has quickly built a reputation for integrity and quality in the community. We understand that your home is your sanctuary, and we treat each project with the utmost care. Our skilled professionals use the best materials and techniques to ensure lasting beauty and durability. At Edidel Construction, we prioritize building strong relationships with our clients. From the initial consultation to project completion, we work closely with you to bring your vision to life. We also offer eco-friendly options to enhance your home and contribute to a sustainable future. Experience the Edidel difference and trust us to transform your home with style and efficiency!

"On time every day and put in a solid days work. There was no messing around on cell phones or wasting time. They did a great job installing the windows and cleaning up each day. I would highly recommend Edidel. Jen, her husband and their crew were wonderful "

donna r on May 2025

Edidel Construction is a family-owned business specializing in roofing, siding, decking, and window installations. With over 30 yrs of combined experience, we pride ourselves on delivering top-notch craftsmanship and personalized service to every client. Founded by the Oyarzun family and a woman owned registered business, our company has quickly built a reputation for integrity and quality in the community. We understand that your home is your sanctuary, and we treat each project with the utmost care. Our skilled professionals use the best materials and techniques to ensure lasting beauty and durability. At Edidel Construction, we prioritize building strong relationships with our clients. From the initial consultation to project completion, we work closely with you to bring your vision to life. We also offer eco-friendly options to enhance your home and contribute to a sustainable future. Experience the Edidel difference and trust us to transform your home with style and efficiency!

"On time every day and put in a solid days work. There was no messing around on cell phones or wasting time. They did a great job installing the windows and cleaning up each day. I would highly recommend Edidel. Jen, her husband and their crew were wonderful "

donna r on May 2025


J & P Restoration

4.62(
59
)
Approved Pro

J & P Restoration

4.62(
59
)
Approved Pro
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
19 local quotes requested

With over 33 years experience in residential home improvement projects, J & P Restoration has the knowledge and experience to make your Addition, remodel or other project a reality.

"The owner, John Petrillo, is an old-school pro. This was an insurance claim job, but we hope to hire him again this year for another large (non-insurance claim) project."

Theresa M on May 2023

With over 33 years experience in residential home improvement projects, J & P Restoration has the knowledge and experience to make your Addition, remodel or other project a reality.

"The owner, John Petrillo, is an old-school pro. This was an insurance claim job, but we hope to hire him again this year for another large (non-insurance claim) project."

Theresa M on May 2023

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FAQs for addition to existing structure building service projects in Hamden, 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 Hamden, 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.