Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in Pittsburgh, PA

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.

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

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

Serving Pittsburgh, PA and surrounding areas

Approved

In business since 1988

Free estimates

Warranties offered

"Once started the work was done quickly. The original scope of work for concrete finish was changed at my request to use exposed aggregate making the pad look like one single pour. Wow, looks great, money well spent. Gable roof with cathedral ceiling and finishes match perfectly. Looks like it has always been part of the house. Light landscaping was also provided to repair lawn from construction damage. This was done by the contractor without charge or my request. There was a small leak that the contractor repaired after several trips. This was resolved to my satisfaction. The point here is the contractor took responsibility and returned until this was resolved. We love our new patio, it’s perfect!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+35

Response time2 days
Response rate100%
5 neighbors recently requested a quote
Avatar for Magic Designs LLC
Magic Designs LLC
5.0(
36
)
Addition to Existing Structure - Build

Serving Pittsburgh, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"We hired Magic Designs for a 1500 sq ft home addition and couldn’t be happier. They added a stunning great room, expanded our kitchen and dining area into a spacious open floor plan, and extended our children’s bedrooms by 8 feet—giving them room to grow and thrive. The kitchen is now modern and functional, perfect for hosting and everyday life. The new garage is a dream: it easily fits our SUV with space to spare. Every detail was handled with care and precision. Magic Designs was professional, communicative, and respectful of our time and budget. Their craftsmanship and design expertise exceeded our expectations. We now have a home that feels bigger, brighter, and better suited to our family’s needs. Highly recommend Magic Designs for any major renovation—they truly live up to their name! MAGIC!"
Response time4 days
9 neighbors recently requested a quote
Recommended by31%of homeowners
Furko Construction
4.4(
77
)
Addition to Existing Structure - Build

Serving Pittsburgh, PA and surrounding areas

Approved

In business since 1996

Emergency services offered

Customers say: Super punctual

"The side porch turned out beautiful! Doug listened to what I wanted done and he made his suggestions... regarding the materials, the railings, and the steps. The price he quoted was very reasonable and fair. The job was completed within the timeframe that was quoted. Doug and his crew are very professional, friendly, and did a great job. I will give them an A+! I will be hiring Furko Construction again in the future."
Response time2 days
Response rate100%
1 neighbors recently requested a quote
Avatar for Shane Moran Masonry LLC
Shane Moran Masonry LLC
4.4(
29
)
Addition to Existing Structure - Build

Serving Pittsburgh, PA and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"Shane and his team were reliable and professional. They did excellent work and were better priced than all competitors. The job involved removing an old, failed retaining wall and building a new one with steps. They also installed proper drainage to secure the hillside from future shifting. We won't hesitate to hire him again!"
Addition
Remove asphalt and reinstall concrete driveway
Addition
Remove asphalt and reinstall concrete driveway
Addition

+15

Response time1 day
5 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Brody's Services
Brody's Services
5.0(
20
)
Addition to Existing Structure - Build

Serving Pittsburgh, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Emergency services offered

"I am so thankful that I found Brodys Services! My toilet wasnt flushing good & little moths were appearing from the drain. I had 2 plumbing companies come and each one had a different opinion and quoted high prices. My third estimate was by Brody. He was a good listener & very polite. He tested my plumbing and found the problem was a cracked pipe under the toilet. He had to jackhammer the floor, fix the pipe and re-cement the floor. He put plastic on the door ad kept the dust contained and cleaned everything when he was done. I was so pleased with his work and affordable prices, I decided to do a remodel of the bathroom. He removed my tub and installed a large shower, new vanity, toilet, and floor. It looks wonderful! He worked according to my schedule, gave me his expert opinion, and cleaned up daily. I am so happy with the results & his price. I would definitely be using his services again!"
Bathroom
Bathroom
Bathroom
Bathroom
Bathroom

+2

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

Serving Pittsburgh, PA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Rough Diamond Construction Company did an excellent job remodeling my family room/basement. Nate's attention to detail and his expertise was well worth every dollar paid. He was always in contact with me as well as advocating for me when I had a water problem in my basement with the company who initially made the repair. Because of the water problem I experienced in the summer, I decided to have the entire room renovated - new floors, walls, ceiling, doors, etc. Nate and his crew were professional and efficient. The end result is that the room is absolutely beautiful. I would recommend Nate and his team to anyone - you won't be sorry."
My jobs
My jobs
My jobs
My jobs
My jobs

+8

Response time11 hrs
Response rate90%
1 neighbors recently requested a quote
Avatar for C & C Home Remodeling
C & C Home Remodeling
4.5(
11
)
Addition to Existing Structure - Build

Serving Pittsburgh, PA and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"I originally had C & C completed a roof replacement and siding with soffit replacement. Calvin & Chris were great to work with. They communicated clearly when they would be able to start our project, arrived on time, was very respectful of our home, answered any questions, explained what to expect for the current day and the following day prior to leaving for the evening. I used them again when I needed my bathroom remodeled and would use them again and again should I need a home improvement project. I appreciate their responsiveness and professionalism."
Siding Project
Siding Project
Additional Photos
Additional Photos
Additional Photos

+62

7 neighbors recently requested a quote
Recommended by80%of homeowners
A & J Contracting Company, LLC
4.2(
36
)
Addition to Existing Structure - Build

Serving Pittsburgh, PA and surrounding areas

Approved

In business since 1995

Free estimates

Offers commercial services

"I hired him to do a pretty significant remodel on a duplex investment property. The building was old and had a lot of subpar work done by the previous owner that had to be fixed. He worked with my budget and stood by his work as he actually fixed a leak in the roof 2 months after the work had been completed. Anthony was a great partner as he told me exactly what to expected and helped me save money where possible. His knowledge of the investment/rental perspective helped me reach my goals with the duplex. I plan to buy again and will definitely be using Anthony and team for any work needed."
 bathroom before picture
 bathroom after picture
 kitchen remodel photo
 Rough framing for basement remodel
drywall work for basement remodel

+23

1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Mangone Contracting
Mangone Contracting
4.5(
16
)
Addition to Existing Structure - Build

Serving Pittsburgh, PA and surrounding areas

Approved

In business since 2005

Free estimates

Customers say: True professional

"Eric and his crew did an outstanding job on the addition to our home. From start to finish, their professionalism and attention to detail were exceptional. The craftsmanship is truly beautiful, and you can tell they take great pride in their work. I’ll admit, I’m not always the easiest person to please because I have high expectations—but Eric and his team exceeded them. They listened carefully to what I wanted and delivered exactly what I asked for, and more. We are absolutely thrilled with the finished result. If you’re looking for a contractor who is meticulous, reliable, and committed to doing things the right way, I highly recommend Eric and his crew."
Two Story Addition
Custom Cathedral Ceilings
Custom Tiled Shower
Custom Framing
additions

+6

Response time3 days
10 neighbors recently requested a quote
Recommended by58%of homeowners
...
Showing 1-10 of 337
FAQs for addition to existing structure building service projects in Pittsburgh, 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 Pittsburgh, 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.