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

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

Serving Allison Park, 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
Furko Construction
4.4(
77
)
Addition to Existing Structure - Build

Serving Allison Park, PA and surrounding areas

Approved

In business since 1996

Emergency services offered

Customers say: Super punctual

"Crews worked almost three full days with only short lunch breaks. Shed looks like brand new and repairs were a lot cheaper than having to demolish, add foundation and new shed. Garage door framing looks great with new recently installed garage doors. Crew let us know when they would arrive each day and were prompt and they did great job of cleaning up. Foreman, Mo, was excellent communicator. Very pleased and would highly recommend. Thank you to Doug and all the workers!"
Response time2 days
Response rate100%
1 neighbors recently requested a quote
Avatar for T.R. Miller Contracting, Inc.
T.R. Miller Contracting, Inc.
5.0(
13
)
Addition to Existing Structure - Build

Serving Allison Park, PA and surrounding areas

Approved

In business since 1992

Free estimates

Customers say: Quality work

"I had a great experience working with Tim to add a large sports room onto the back of my house in Etna. I had several conversations with him about what I was looking to do and then he put together a very reasonable project. I really like how Tim manages the money and the various contractors he works with. He put together a plan for me paying him based on the various milestones of the project, which then involved different people for the foundation, insulation, drywall, electrical and so on. This kept everyone on schedule and the entire addition was completed between April to early-July of 2023. I also had him put in hardwood floors throughout the entire first floor of my house. It is such a great improvement to the living space. Just excellent work and completeprofessionalism from Tim and his crew and the contractors he works with. True to form, Tim has stopped by since then to check-in on things and answer any questions I've had. I will definitely work with Tim again."
Master addition planning stage
Master addition
left side after
befback beforeore
front before

+21

Response time20 mins
6 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Solid Rock Homes & Design, LLC
Solid Rock Homes & Design, LLC
4.9(
17
)
Addition to Existing Structure - Build

Serving Allison Park, PA and surrounding areas

Approved

In business since 2018

Free estimates

Customers say: Quick response

"Solid Rock Homes & Design worked with us to design and build a kitchen in our basement. They worked within our budget and time frame to complete the exact kitchen that we desired. They were professional and knowledgeable in all stages of the project- from the detailed design of the space, to the plumbing and electrical work, then the installation of the cabinets. We highly recommend any homeowner to use them for any renovations!"
Front
Left Side
Right Side
View
Front Side

+40

Response time12 hrs
Response rate95%
Recommended by81%of homeowners
Avatar for Shane Moran Masonry LLC
Shane Moran Masonry LLC
4.4(
29
)
Addition to Existing Structure - Build

Serving Allison Park, PA and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"Shane and crew were great! They were prompt, courteous, and efficient. When I mentioned I was planning to put in a retaining wall myself, he gave me a very reasonable quote for the additional work and had it done in a day. Highly recommend!"
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 Rough Diamonds Construction LLC
Rough Diamonds Construction LLC
5.0(
14
)
Addition to Existing Structure - Build

Serving Allison Park, 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%
2 neighbors recently requested a quote
Avatar for Brody's Services
Brody's Services
5.0(
22
)
Addition to Existing Structure - Build

Serving Allison Park, 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%
19 neighbors recently requested a quote
A & J Contracting Company, LLC
4.2(
36
)
Addition to Existing Structure - Build

Serving Allison Park, PA and surrounding areas

Approved

In business since 1995

Free estimates

Offers commercial services

"I donâ  t know where to begin to say how satisfied I am with A & J Contracting! I needed my basement renovated ASAP and Mr. Anthony met with me in a timely manner explaining in great detail the work he would perform and how pleased I would be! Let me tell you he did NOT disappoint because he and his partner Mark performed what I call a â  miracleâ  in renovating my basement and went above and beyond my expectations!!!! Iâ  ve shown many the before and after pictures of what I now can call my family room and the response each time was how â  beautifulâ  of a job Anthony did!! If you are in need a great contractor donâ  t look anywhere else but A & J Contractor and call Anthony NOW! My family still canâ  t believe what A & J Contractor did with that old and in bad shape basement!! Very professional and the many years of experience really was on display!! Thank you again Anthony and Mark for restoring our basement!! Iâ  ll definitely be utilizing them in the future and wonâ  t have to look elsewhere!!"
 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 Allison Park, 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
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FAQs for addition to existing structure building service projects in Allison Park, 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 Allison Park, 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.