Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in New Castle, DE

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.

Find Addition to existing structure builders in New Castle

Avatar for Martin's Home Improvement
Martin's Home Improvement
4.9(
83
)
Addition to Existing Structure - Build

Serving New Castle, DE and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"They did a great job! Always on time, always were very respectful of our home and of us, and always cleaned up well at the end of each day. We loved working especially with Richard, who is so talented at masonry, woodworking, electrical, plumbing. A master of all things needed to improve our home, incredible work ethics and just so nice to be around. We have had numerous people work on our home over the 29 years we've lived here and no one has done a better job. Thanks to everyone at Martin's Home Improvement. You were a joy to work with and we will definitely use you in the future!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+57

Response time9 hrs
8 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Inspired Exteriors, LLC
Inspired Exteriors, LLC
5.0(
32
)
Addition to Existing Structure - Build

Serving New Castle, DE and surrounding areas

Approved

Free estimates

Credit card accepted

Customers say: True professional

"I am beyond satisfied with the work done by Inspired Exteriors. The craftmanship was excellent and the porch stair railings almost perfectly match my existing porch railings. Workers were neat and professional and worked a long day to get the job done. I thought the price was right and was a great value for the amount of work that went into the project. I worked personally with the owner who was very professional and spent a lot of time with me even though it was a relatively small project."
Complete Exterior Makeover with Herringbone Siding & Stone Accents
GAF Timberline HD Pewter Gray, Added Ridge Vent
Owens Corning Duration Onyx Black
Owens Corning Duration Pewter Gray
Roofing, Siding, and Gutters

+279

Response time1 day
4 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Legacy Construction Company LLC
Legacy Construction Company LLC
4.4(
56
)
Addition to Existing Structure - Build

Serving New Castle, DE and surrounding areas

Approved

In business since 1990

Free estimates

Warranties offered

"I had a tree fall on my house back in June 2020 which caused major damage to the back of my home. I called several contractor's but I wasn't pleased with their assessment. I then came across Legacy Construction and they were great from the start. I spoke to Mrs. Diane on the phone and she was great, she gathered a lot of information from me and told me that I was in good hands and informed me that Gary the project manager will be contacting me shortly. After speaking to Gary he explained to me the first thing that needed to be done is the property needed to be tarped asap because the home is being exposed to water which is causing further damage and causing mold to building up because water has been coming into the property for almost two months. Gary informed me step by step room by room what damages the tree caused and how he was going to fix the water damages and the damages done to the frame of the home. After speaking to Gary I was sold and stopped looking for a contractor to fix my house. I would definitely recommend Legacy Construction to anybody that needs work done to their home. Their customer service and workmanship is great I would highly recommend."
Electrical Project
Roofing Project
Roofing Project
Electrical Project
Roofing Project

+262

Response time9 hrs
Response rate100%
5 neighbors recently requested a quote
Avatar for AW Viohl Contracting LLC
AW Viohl Contracting LLC
4.7(
21
)
Addition to Existing Structure - Build

Serving New Castle, DE and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"It was done in the promised amount of time of 4 weeks. There was a bit of a delay with the township. The workers did outstanding work, the decks they have done in my neighborhood are by far the most beautiful. Everything I requested at the beginning was honored and they came up with a few additional great ideas. I requested that the price not change and it did not. My son was having a deck done at the same time and took pictures so his contractor would model his after my deck. I am very pleased with the outcome and would use them again."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+13

Recommended by95%of homeowners
Avatar for North Point Builders, LLC
North Point Builders, LLC
5.0(
5
)
Addition to Existing Structure - Build

Serving New Castle, DE and surrounding areas

Approved

In business since 2001

Free estimates

Customers say: Quick response

"From the first day that I met Andy I knew that I would hire him. He's very pleasant, knoweldgeable and conscientious. His work far exceeded my expectations. They arrived on time, prepared my space to ensure it remained clean and left the work space in perfect condition. I will be hiring him again and I highly recommend North Point Builders!"
garage
deck
living area
garage
deck

+147

Response time4 days
Recommended by100%of homeowners
Avatar for Delaware Dreamscapes
Delaware Dreamscapes
4.2(
48
)
Addition to Existing Structure - Build

Serving New Castle, DE and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"Martin and his team did a great job creating a beautiful curb appeal for my front yard. He created a design that would allow me to enjoy my home with minimal yard work. Looking forward to working with him next year on my backyard!"
natural flagstone entrance
outdoor living space
Paver driveway
techo bloc patio installation
outdoor kitchen

+42

Response time2 days
15 neighbors recently requested a quote
Recommended by74%of homeowners
Avatar for Blue Ridge Builders, Inc.
Blue Ridge Builders, Inc.
4.6(
11
)
Addition to Existing Structure - Build

Serving New Castle, DE and surrounding areas

Approved

In business since 1995

Free estimates

Warranties offered

"I recently hired Wayne Bedwell and Blue Ridge Builders to remodel my garage, and I couldn't be happier with the experience and final result. Wayne was professional, trustworthy, and extremely detail-oriented throughout the entire project. He took the time to double-check measurements, plans, and finishes to ensure everything was done correctly the first time. He also did an excellent job coordinating multiple trades and specialty contractors, keeping the project moving smoothly and on schedule. Communication was clear from start to finish, and any questions or changes were handled promptly and professionally. Most importantly, Wayne delivered a high-quality result at a fair and reasonable price. If you're looking for a contractor who is reliable, organized, honest, and committed to doing things the right way, I highly recommend Wayne Bedwell and Blue Ridge Builders."
Additional view
 Glass tile backsplash and under cabinet lighting.
 Front reconstruction
 Kitchen completed!
 Kitchen and Dining Areas

+83

Response time2 days
1 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for T A F Construction Inc.
T A F Construction Inc.
2.3(
3
)
Addition to Existing Structure - Build

Serving New Castle, DE and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"Tom from TAF was first to respond from the contractors you suggested. Came and inspected area the next week and emailed me proposal next day. More detailed work than I expected but work nevertheless needed done. Price very reasonable and hope to reach out again if/when I can fit into budget."
Response time2 days
Response rate100%
15 neighbors recently requested a quote
Avatar for Merryfield Construction Group
Merryfield Construction Group
4.5(
125
)
Addition to Existing Structure - Build

Serving New Castle, DE and surrounding areas

In business since 2003

Free estimates

Warranties offered

"When we first met with Lew Merryfield, our home was a disaster.  Smoke and intense heat had made it necessary to completely gut and restore our home.  It was a time of great despair and confusion.  Lew was very reassuring that his company would be able to handle to assignment and allow us to return to a home that was better than ever, and agreed to bid the job in the format requested.
After the contract was signed the Merryfield Construction Group was very active, and progress was made every week.  We opted to hire our own subcontractors for plumbing and HVAC, and an electrical contractor recommended by the provider.  The provider and their staff worked well with the other contractors and were communicative with us during the process.  A promise to never abandon working on our home for any significant period of time was kept.  Building options and recommendations were presented at appropriate times and were appreciated.  Lew and his brother George worked with us to solve problems that arose and we always felt like it was a partnership and that they took great pride in their work.  Additional work outside the original contract and work change orders were appropriate and reasonably priced.
The fire was one week before Christmas in 2013, and we were able to move back in late October 2014.  Although this time frame was slightly outside of the original estimate, it was not considered unreasonable given the nature of the work and the change orders. After we moved in, the provider has done a nice job on following up any problem areas and punch list items.
We are very happy with our "new" home and are confident that the provider will continue to stand behind the work.  The overall job turned out much better than we could have expected.  Lew and George Merryfield, and their staff, particularly Tom Ferry, Sean, and Scott, were always respectful and friendly, and took obvious pride in their crafts.  In conclusion, we are glad we selected Merryfield Construction Group and would not hesitate to use them again in the future or recommend them to others."
Mullica Hill
Checkerboard View
Master Bath Retreat
Additional Photos
Additional Photos

+1

Recommended by95%of homeowners
...
Showing 1-10 of 286
FAQs for addition to existing structure building service projects in New Castle, DE

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 Castle, DE 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.