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Top-Rated Addition to existing structure builders in Canonsburg - Updated Nov 2026

Avatar for Krain Construction LLC
Krain Construction LLC
4.7(
28
)
Addition to Existing Structure - Build

Serving Canonsburg, PA and surrounding areas

Approved

In business since 1988

Free estimates

Warranties offered

"I am so happy that we found Krain Construction. Brian and his crew really brought our vision to life. We wanted to build 2 stories on top of an already existing foundation that only had a roof on it. We had a hard time finding someone to do it but Brian had no hesitation. He drew up a floor plan and we loved it. His crew built the new frame for our house, did the siding, doors, windows, decks, gutters, hvac. My husband and I are going to do the interior part of the house. If we had any issues we could easily text Brian and he would resolve them quickly. If we had any last minute changes, he would work with us. Very personable and professional. If we ever needed anything else done I would use them again and I would recommend to anyone needing a remodel. I will post some pictures of how our house started and how it is now that they’re done."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+35

Response time2 days
Response rate100%
5 neighbors recently requested a quote
Avatar for Brody's Services
Brody's Services
5.0(
20
)
Addition to Existing Structure - Build

Serving Canonsburg, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Emergency services offered

"I recently had my bathroom completely transformed by Brody and his crew, and I could not be happier with the results. From the initial consultation to the final walk-through, their professionalism and attention to detail were outstanding. They listened to my vision and brought it to life with stunning tile work, modern fixtures, and impeccable craftsmanship. The project was completed on time and within budget, which was a pleasant surprise given the quality of work. The team was courteous, clean, and communicative throughout the entire process. My bathroom now feels like a spa retreat, and I have Brody?s Services to thank for that. Highly recommend for anyone looking to elevate their bathroom experience."
Bathroom
Bathroom
Bathroom
Bathroom
Bathroom

+2

Response time8 hrs
Response rate97%
16 neighbors recently requested a quote
Avatar for Thornburg Construction
Thornburg Construction
5.0(
14
)
Addition to Existing Structure - Build

Serving Canonsburg, PA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"I hired to Josh to work that includes replacing the roof of my garage, clear my backyard, rebuild my backyard fence, my patio area, my bathroom, my front porch, replace windows, and doors. Josh always does amazing work. He is thorough, thinks outside the box, and is always upfront, honest, and professional. Never rude or disrespectful. He’s the ONLY ONE allowed to work on my home."
Our Completed Projects
Our Completed Projects
Our Completed Projects
Our Completed Projects
Our Completed Projects

+47

17 neighbors recently requested a quote
Avatar for C & C Home Remodeling
C & C Home Remodeling
4.5(
11
)
Addition to Existing Structure - Build

Serving Canonsburg, PA and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"The owners (Chris and Cal) did an excellent job on our remodeled project. They were personally involved with the project and worked directly with us during the entire planning and implementation of the work. They were true craftsmen. We wanted a contractor who could do the entire project and C&C fit the bill. They performed the drywall, flooring, windows, painting, electrical, and structural part of the job. We would highly recommend them ."
Siding Project
Siding Project
Additional Photos
Additional Photos
Additional Photos

+62

7 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Mangone Contracting
Mangone Contracting
4.5(
16
)
Addition to Existing Structure - Build

Serving Canonsburg, PA and surrounding areas

Approved

In business since 2005

Free estimates

Customers say: True professional

"I hired Mangone Construction after a neighbor used them for a project. The Company has completed 2 projects to date on my property: 1) 2nd Floor addition over a first floor structure and 2) a new rear deck including adding a roof over part of the deck. Thw owner's sons are the ones that perform the work. They're diligent, clean, hardworking and meticulous. They're open about necessary project changes with overall impacts to the final product."
Two Story Addition
Custom Cathedral Ceilings
Custom Tiled Shower
Custom Framing
additions

+6

Response time3 days
9 neighbors recently requested a quote
Recommended by58%of homeowners
Servicemaster by Compass
4.6(
15
)
Addition to Existing Structure - Build

Serving Canonsburg, PA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Conrad and his team are very professional and affable. We enjoyed working with them a lot. They are very careful of cleaning as well as noise and dust control as we have a new-born baby at home. They also have good recommendations of material supplies that we were able to own a very modern-style looking kitchen in the end. All experiences are positive!"
Response time2 days
Response rate100%
4 neighbors recently requested a quote
Avatar for Heldt Construction Company
Heldt Construction Company
3.7(
6
)
Addition to Existing Structure - Build

Serving Canonsburg, PA and surrounding areas

Approved

In business since 2020

Offers commercial services

"We hired Ty to do a kitchen remodel. He asked what we were looking for and if we were set on anything particular. We gave him our ideas and of course asked his input. He came up with a few ideas and presented them to us. Once everything had been decided, he was extremely on point with bringing the project to life. He was professional throughout the entire project, communicated everything, was punctual and completely transformed our kitchen. We plan on remodeling our bathroom next and he is the man for the job."
Living room remodel
Living room remodel
Living room remodel
Living room remodel
Bathroom remodel

+54

2 neighbors recently requested a quote
Construction Integrity Group
New to Angi
Addition to Existing Structure - Build

Serving Canonsburg, PA and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

With over 25 years of experience, Construction Integrity Group is who you need to take care of your home. We handle everything from the initial consultation to making sure your property looks perfect every single time. We will always treat your property as we would treat our own, and you will be surprised how simple and easy our team will make the whole process seem. Give our team a call today. We're looking forward to working with you!

Park Ave. Bathroom
Park Ave. Bathroom
Park Ave. Bathroom
Park Ave. Bathroom
Park Ave. Bathroom

+3

3 neighbors recently requested a quote
Avatar for Zacchero Construction
Zacchero Construction
4.9(
15
)
Addition to Existing Structure - Build

Serving Canonsburg, PA and surrounding areas

In business since 2016

Free estimates

Warranties offered

"We could not be happier with the work done by Wyatt. He took time to listen to what we wanted for our project and explained the process and answered any questions we had along the way. Our project was turning a partially finished basement into a family room/office and a Pittsburgh potty into a half bath. His attention to detail was incredible. He did a great job matching the new walls with the existing walls swirl pattern and the baseboards look great. The bathroom turned out better than we could have imagined it. Wyatt also stayed within our budget, so there were no surprises at the end. We could not have been luckier in our search for a contractor and would highly recommend."
Old steps from the street
Old landing
Old porch steps
New concrete steps up from the street
New landing

+89

Response time2 days
Recommended by90%of homeowners
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FAQs for addition to existing structure building service projects in Canonsburg, PA

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 Canonsburg, PA 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.