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Addition to existing structure builders in Johnstown

Sanchez Roofing & Remodelation
1866 Sale Rd
New on HomeAdvisorNew on Angi
Approved Pro
Sanchez Roofing & Remodelation
1866 Sale Rd
New on AngiNew on HomeAdvisor
Approved Pro
21 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!

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!


BENTLEY CONSTRUCTION AND DESIGN LLC
4518 Bradford Rd.
New on HomeAdvisorNew on Angi
Approved Pro
BENTLEY CONSTRUCTION AND DESIGN LLC
4518 Bradford Rd.
New on AngiNew on HomeAdvisor
Approved Pro
3 years of experience
Free onsite estimate

We strive to deliver from A-Z. Design, architecture, engineering, project management, and beyond. We will deliver as promised. We will complete your project on time.

We strive to deliver from A-Z. Design, architecture, engineering, project management, and beyond. We will deliver as promised. We will complete your project on time.


DBT Construction Services
11321 Township Road, #1071
New on HomeAdvisorNew on Angi
Approved Pro
DBT Construction Services
11321 Township Road, #1071
New on AngiNew on HomeAdvisor
Approved Pro
31 years of experience

Father started with SP - helped out on weekends as a child (10 years old) and eventually did his own thing. Cash, check, card (+3%) (free estimates & trip charges pending job scope)

Father started with SP - helped out on weekends as a child (10 years old) and eventually did his own thing. Cash, check, card (+3%) (free estimates & trip charges pending job scope)


CE Remodelers
6421 State Route 521
5.00(
1
)
Approved Pro
CE Remodelers
6421 State Route 521
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

CE Remodelers 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.

"We would use them again. He communicated early and often. Jim was very good at offering alternative solutions and modifications that were very sensible."

Soren P on September 2017

CE Remodelers 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.

"We would use them again. He communicated early and often. Jim was very good at offering alternative solutions and modifications that were very sensible."

Soren P on September 2017


Avatar for Diamond in the Rough Property Solutions, LLC
Diamond in the Rough Property Solutions, LLC
1399 Ragersville Rd SW
4.81(
16
)
Approved Pro
Diamond in the Rough Property Solutions, LLC
1399 Ragersville Rd SW
4.81(
16
)
Approved Pro
Customers say: Quick response
21 local quotes requested
8 years of experience

We are 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 services that are customizable to each individual project. We specialize in additions and 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!

"We hired Diamond in the Rough Construction for a home addition, and while the finished result looks good at first glance, the process was full of issues and cost us much more than expected. We chose Diamond because of Abby, the salesperson, who was incredibly helpful and responsive. However, she left midway through the project, and we missed her support. Addison, the project manager, did his best but was left to handle more than he should have. The owners, Joe and Mike, were completely absent ? no check-ins or follow-ups, even when major issues arose.There were significant mistakes, like framing the windows to the wrong size, and we were blamed for "approving the wrong windows." HVAC was also forgotten until after construction started, forcing us to pay thousands more. The trim was poorly finished with putty that didn?t match the color of the pre-painted trim, and the solution was simply to cover the nail holes with a paint pen. In the end, we can?t recommend Diamond in the Rough"

Renee F on May 2025

We are 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 services that are customizable to each individual project. We specialize in additions and 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!

"We hired Diamond in the Rough Construction for a home addition, and while the finished result looks good at first glance, the process was full of issues and cost us much more than expected. We chose Diamond because of Abby, the salesperson, who was incredibly helpful and responsive. However, she left midway through the project, and we missed her support. Addison, the project manager, did his best but was left to handle more than he should have. The owners, Joe and Mike, were completely absent ? no check-ins or follow-ups, even when major issues arose.There were significant mistakes, like framing the windows to the wrong size, and we were blamed for "approving the wrong windows." HVAC was also forgotten until after construction started, forcing us to pay thousands more. The trim was poorly finished with putty that didn?t match the color of the pre-painted trim, and the solution was simply to cover the nail holes with a paint pen. In the end, we can?t recommend Diamond in the Rough"

Renee F on May 2025


Avatar for AGJ CONSTRUCTION
AGJ CONSTRUCTION
2731 CROSS CREEK AVE
New on HomeAdvisorNew on Angi
Approved Pro
AGJ CONSTRUCTION
2731 CROSS CREEK AVE
New on AngiNew on HomeAdvisor
Approved Pro
2 years of experience
Free onsite estimate

We’re a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. Albert has over 38 years of contracting experience and is extraordinarily proficient in his field. We offer a variety of General Contractor Home Improvement services that are customizable to each individual project. We specialize in Additions and 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!

We’re a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. Albert has over 38 years of contracting experience and is extraordinarily proficient in his field. We offer a variety of General Contractor Home Improvement services that are customizable to each individual project. We specialize in Additions and 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!


Avatar for Ohio Exteriors LLC
Ohio Exteriors LLC
244 Agler Rd
4.56(
886
)
Approved Pro
Ohio Exteriors LLC
244 Agler Rd
4.56(
886
)
Approved Pro
Customers say: Quality work
738 local quotes requested
19 years of experience

We offer complete roof replacements, sunroom installation, and additions. We are an exterior remodeler specializing in James Hardie fiber cement siding, vinyl siding, cedar siding, and more!

"Ohio Exteriors completed a three-season room that met all of our expectations. The office staff was responsive, and they provided a custom design that met our needs, particularly with the window options and slope of the roofline. The crew paid attention to details and adjusted well to the challenges that popped up along the way. The work was completed in a timely manner, and the site was kept clean throughout the project."

Thomas S on April 2025

We offer complete roof replacements, sunroom installation, and additions. We are an exterior remodeler specializing in James Hardie fiber cement siding, vinyl siding, cedar siding, and more!

"Ohio Exteriors completed a three-season room that met all of our expectations. The office staff was responsive, and they provided a custom design that met our needs, particularly with the window options and slope of the roofline. The crew paid attention to details and adjusted well to the challenges that popped up along the way. The work was completed in a timely manner, and the site was kept clean throughout the project."

Thomas S on April 2025


Avatar for SemBro Designs
SemBro Designs
2163 N Wilson Rd
4.71(
73
)
Approved Pro
SemBro Designs
2163 N Wilson Rd
4.71(
73
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
519 local quotes requested

You can sit down with us and we will help you design your new kitchen layout. You will see your future kitchen using our 3D design center. Our showroom features a variety of cabinets, countertops, flooring & hardware. We provide cabinetry that fits your specific budget, from basic to luxurious.

"Complete kitchen remodel (cabinets, counters, sink/fixtures, adding electrical) and flooring replacement on 1st floor; new half bath vanity, top and faucet; outstanding customer support and attention to detail and quality by this team. They are customer-focused, adaptive, accommodating and professional. While there were delays as a major holiday approached, they did everything they could to complete this remodel to our satisfaction, on budget. There were also a few supply-chain issues but were handled fairly and the outcome was wonderful. Their showroom on the west side of Columbus is beautiful but their people (Roman, Diana, Daniel, Nazar, Igor and their team) and how we were treated also impressed us greatly. I really liked how they itemized each portion of the project where I could pick and choose portions I could do myself such as demolition and painting. This saved us several thousand dollars. I would not hesitate to use their services again."

EDWARD F on December 2022

You can sit down with us and we will help you design your new kitchen layout. You will see your future kitchen using our 3D design center. Our showroom features a variety of cabinets, countertops, flooring & hardware. We provide cabinetry that fits your specific budget, from basic to luxurious.

"Complete kitchen remodel (cabinets, counters, sink/fixtures, adding electrical) and flooring replacement on 1st floor; new half bath vanity, top and faucet; outstanding customer support and attention to detail and quality by this team. They are customer-focused, adaptive, accommodating and professional. While there were delays as a major holiday approached, they did everything they could to complete this remodel to our satisfaction, on budget. There were also a few supply-chain issues but were handled fairly and the outcome was wonderful. Their showroom on the west side of Columbus is beautiful but their people (Roman, Diana, Daniel, Nazar, Igor and their team) and how we were treated also impressed us greatly. I really liked how they itemized each portion of the project where I could pick and choose portions I could do myself such as demolition and painting. This saved us several thousand dollars. I would not hesitate to use their services again."

EDWARD F on December 2022


Avatar for KWIK KITCHENS
KWIK KITCHENS
PO Box 360512
5.00(
5
)
Approved Pro
KWIK KITCHENS
PO Box 360512
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
666 local quotes requested

Kwik Kitchens is a family owned company providing kitchen remodeling services to the greater Columbus area for more than 20 years. We have installed hundreds of kitchens for homeowners, apartment complexes and investors. Our functional layouts, cabinet and countertop options, competitive prices and easy, streamlined installation process result in beautiful kitchens and many happy customers.

"I wrote a lengthy review of Kwik Kitchens, but don't see it posted to my account."

Rhonda D on June 2024

Kwik Kitchens is a family owned company providing kitchen remodeling services to the greater Columbus area for more than 20 years. We have installed hundreds of kitchens for homeowners, apartment complexes and investors. Our functional layouts, cabinet and countertop options, competitive prices and easy, streamlined installation process result in beautiful kitchens and many happy customers.

"I wrote a lengthy review of Kwik Kitchens, but don't see it posted to my account."

Rhonda D on June 2024


Avatar for Patio Room Factory Inc
Patio Room Factory Inc
1900 Federal Prky
4.84(
50
)
Approved Pro
Patio Room Factory Inc
1900 Federal Prky
4.84(
50
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
154 local quotes requested

Fabricate and install our own aluminum products thereby eliminating a middle man and allowing your dollar to go farther. We will provide free estimates and consultation. Accept your check or VISA, MC, AE.

"I just had a fiberglass patio awning replaced with a metal one from The Patio Room Factory. The original covering was very old and dirty, but I wanted the wooden framing left intact. The install and finished product were even better than I had expected. It looks great and the company was very easy to work with. Mark Yates, the sales rep, was always accessible whenever I had a question and they even postponed the install scheduled for last fall till spring because of an unexpected surgery I needed. I would recommend this company and know you would be pleased with any work you might need done by them!"

Jan S on April 2018

Fabricate and install our own aluminum products thereby eliminating a middle man and allowing your dollar to go farther. We will provide free estimates and consultation. Accept your check or VISA, MC, AE.

"I just had a fiberglass patio awning replaced with a metal one from The Patio Room Factory. The original covering was very old and dirty, but I wanted the wooden framing left intact. The install and finished product were even better than I had expected. It looks great and the company was very easy to work with. Mark Yates, the sales rep, was always accessible whenever I had a question and they even postponed the install scheduled for last fall till spring because of an unexpected surgery I needed. I would recommend this company and know you would be pleased with any work you might need done by them!"

Jan S on April 2018

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Addition to existing structure building services FAQs

How far you can push a room depends on the structure you choose. A cantilevered bump-out can extend 24 inches before building codes require its own footing or foundation. Anything longer needs engineered support and a permit. Check local codes or consult with a structural professional before finalizing plans to ensure your design remains safe and compliant.

Most bump-outs are completed within one to four weeks, even with minimal electrical, plumbing, or HVAC work. Their compact size means less demolition, simpler inspections, and fewer weather-related delays compared to a full-scale addition. Your contractor can provide a more precise timeline once they have determined the scope, materials, and permit schedule, but plan on having the extra square footage ready in approximately a month.

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.
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