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 Bellefontaine

Avatar for General Contractors
General Contractors
7731 St Rt 29
5.00(
1
)
Approved Pro
General Contractors
7731 St Rt 29
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
13 years of experience

General Contractors proudly serves its customers with pride, integrity, and attention to the details that matter most to you. This is one of the many things that set us apart from the rest. Give us a call today!

"I have nothing but praise for them and the work they have done for me, no job was too small or too big for them to handle. They are my primary and first go to contractor for any work I need performed They are honest and trustworthy and there quotes are very fair"

jeannette b on March 2024

General Contractors proudly serves its customers with pride, integrity, and attention to the details that matter most to you. This is one of the many things that set us apart from the rest. Give us a call today!

"I have nothing but praise for them and the work they have done for me, no job was too small or too big for them to handle. They are my primary and first go to contractor for any work I need performed They are honest and trustworthy and there quotes are very fair"

jeannette b on March 2024


Avatar for Union III Outdoor Living
Union III Outdoor Living
18491 White Stone Road
5.00(
9
)
Approved Pro
Union III Outdoor Living
18491 White Stone Road
5.00(
9
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
491 local quotes requested

A Veteran owned landscape company that specializes in Hardscape design/bid. With over 20 years of experience Scott Ross and his team have the expertise to turn your space into a beautiful and functional space to entertain and enjoy the outdoors. Our design/sales process revolves around the client and providing responsive and timely customer service.

"Scott and his crew were skilled, professional, respectful and efficient. In an era where customer service is almost non-existent, Scott and his crew were rare!! I am constantly recommending him to neighbors and friends…many neighbors asked for his name after seeing my beautiful patio!!"

Candy H on January 2025

A Veteran owned landscape company that specializes in Hardscape design/bid. With over 20 years of experience Scott Ross and his team have the expertise to turn your space into a beautiful and functional space to entertain and enjoy the outdoors. Our design/sales process revolves around the client and providing responsive and timely customer service.

"Scott and his crew were skilled, professional, respectful and efficient. In an era where customer service is almost non-existent, Scott and his crew were rare!! I am constantly recommending him to neighbors and friends…many neighbors asked for his name after seeing my beautiful patio!!"

Candy H on January 2025


Avatar for Stanley’s General Construction and Excavation LLC
Stanley’s General Construction and Excavation LLC
Located In:
5.00(
7
)
Approved Pro
Stanley’s General Construction and Excavation LLC
Located In:
5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
72 local quotes requested

We started Stanley General Contracting LLC and Excavating to provide quality work at a honest price . We strive in going above for our customers. With a combined 20 years experience you will not be disappointed in your choice with us. Contact us for a free estimate today!

"Very easy to work with and professional. We will definitely use his services again for future projects"

Stacy W on December 2024

We started Stanley General Contracting LLC and Excavating to provide quality work at a honest price . We strive in going above for our customers. With a combined 20 years experience you will not be disappointed in your choice with us. Contact us for a free estimate today!

"Very easy to work with and professional. We will definitely use his services again for future projects"

Stacy W on December 2024


Avatar for Pure Renovations
Pure Renovations
3666 County Road 28
5.00(
7
)
Approved Pro
Pure Renovations
3666 County Road 28
5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
778 local quotes requested

Pure Renovations is your go-to source for all your construction and remodeling needs in Ohio. From fire and water restoration to general remodeling services, we have the expertise to bring your home projects to life. Contact us today for top-notch service and exceptional results.

"Kenneth and Marciano did excellent work. The price was very reasonable. Challenges arose and they dealt with them beautifully. Their clean up was excellent and their work guaranteed for 5 years. Outstanding duo; would hire again unconditionally. Carol Ross"

Carol R on June 2021

Pure Renovations is your go-to source for all your construction and remodeling needs in Ohio. From fire and water restoration to general remodeling services, we have the expertise to bring your home projects to life. Contact us today for top-notch service and exceptional results.

"Kenneth and Marciano did excellent work. The price was very reasonable. Challenges arose and they dealt with them beautifully. Their clean up was excellent and their work guaranteed for 5 years. Outstanding duo; would hire again unconditionally. Carol Ross"

Carol R on June 2021


Avatar for D SQUARED CONSTRUCTION
D SQUARED CONSTRUCTION
732 W Franklin St
4.85(
41
)
Approved Pro
D SQUARED CONSTRUCTION
732 W Franklin St
4.85(
41
)
Approved Pro
Customers say: Terrific value
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
280 local quotes requested

As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! D Squared Construction LLC is a high end construction company, we do not cut corners or sub out work. Call or click to schedule an estimate today! 567-674-2991

"Communications were awesome, job was professional and I absolutely love my porch!!!!!!"

Penn K on April 2025

As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! D Squared Construction LLC is a high end construction company, we do not cut corners or sub out work. Call or click to schedule an estimate today! 567-674-2991

"Communications were awesome, job was professional and I absolutely love my porch!!!!!!"

Penn K on April 2025


DO NOT CALL JDL Contractors LLC.
223 Walnut St
No reviews
DO NOT CALL JDL Contractors LLC.
223 Walnut St
No reviews

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


BEST DOOR & WINDOW INC
756 COUNTY ROAD 57 W
No reviews
BEST DOOR & WINDOW INC
756 COUNTY ROAD 57 W
No reviews
31 years of experience

Since 1994, Best Door & Window has been a market leading seller and installer of windows, entry doors, patio doors, garage doors, patio rooms, siding, and more. Trust our experienced staff and strong reputation for your next project.

Since 1994, Best Door & Window has been a market leading seller and installer of windows, entry doors, patio doors, garage doors, patio rooms, siding, and more. Trust our experienced staff and strong reputation for your next project.


The Bath Specialist
1971 Fenton St
No reviews
The Bath Specialist
1971 Fenton St
No reviews
7 years of experience

The Bath Specialist provides exceptional Walk-In Shower, Tub/Shower and Walk-In Tub remodeling services. We believe in doing it right. Your bathroom will never be the same again! One day installs, fully customizable baths from stone walls to acrylic walls, top of the line products and certified plumbing experts. Servicing all Ohio. Finding someone to trust in your home has never been easier. Call us to book your FREE no-obligation quote at (888)-533-0075 or www.ourbathspecialist.com

The Bath Specialist provides exceptional Walk-In Shower, Tub/Shower and Walk-In Tub remodeling services. We believe in doing it right. Your bathroom will never be the same again! One day installs, fully customizable baths from stone walls to acrylic walls, top of the line products and certified plumbing experts. Servicing all Ohio. Finding someone to trust in your home has never been easier. Call us to book your FREE no-obligation quote at (888)-533-0075 or www.ourbathspecialist.com


Ideal Home Improvements
425 Kent Dr
No reviews
Ideal Home Improvements
425 Kent Dr
No reviews
...
Showing 1-10 of 275

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.
built-in outdoor kitchen with grill and sink
Apr 30, 2025
Apr 30, 2025
Budget for outdoor kitchen costs based on factors such as appliances, materials, permits, labor, amenities, kitchen size, customizations, and more.
BLUE TWO STORY HOME
Apr 30, 2025
Apr 30, 2025
Budget for the cost to add a second story based on factors such as size, foundation work, materials, labor, permits, post-construction cleaning, and more.
small bathroom that has been updated in a remodel
Apr 29, 2025
Apr 29, 2025
Budget for the cost to remodel a small bathroom based on factors such as required fixtures, bathroom size, labor, remodel type, site prep, and more.
guest house in the backyard
Apr 27, 2025
Apr 27, 2025
Need to build a guest house? Here’s how much it costs, what factors affect cost, and what to expect.
Kitchen view leading into dining area
Apr 28, 2025
Apr 28, 2025
Use this guide to budget for bump-out addition costs based on factors such as room size, room type, labor, finishes, permits, and more.
House roof with nice window
Apr 28, 2025
Apr 28, 2025
Budget for dormer addition costs based on factors such as roof type, framing, customizations, reinforcement, cladding, labor, and more.
Share project details to get started.