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Addition to existing structure builders in Mars

Avatar for decksunlimited

decksunlimited

20 Forest Road
4.43(
40
)
Approved Pro

decksunlimited

20 Forest Road
4.43(
40
)
Approved Pro
Customers say: Quality work
39 local quotes requested
17 years of experience

An outstanding reputation for quality and service, based upon years of serving the Pittsburgh area gives our customers the confidence in knowing the job will be done right. At decksunlimited you will find pride everywhere you look. From the intial design consultation to the final clean up, Total Customer Satisfaction is our constant goal. At decksunlimited there aren't any dark "hidden corners." You can rest assured with a written contract containing all work specifications. Back this up with a 10 Year Warranty and the package is complete. Decksunlimited quality standards and unbeatable value allow you to create a personalized "back to nature " get away right in the comforts of your backyard. The creation of an exciting outdoor project is just a phone call away. It's easy-- just call decksunlimited at 412.616.4378 and explore the possibilities.

"Bruce and his crew did an outstanding job completing my deck project. Bruce was attentive and accessible during the entire project. His team members were professional and the quality of the work speaks for itself. I would recommend these guys to anyone wanting to have a deck built."

Bill L on March 2025

An outstanding reputation for quality and service, based upon years of serving the Pittsburgh area gives our customers the confidence in knowing the job will be done right. At decksunlimited you will find pride everywhere you look. From the intial design consultation to the final clean up, Total Customer Satisfaction is our constant goal. At decksunlimited there aren't any dark "hidden corners." You can rest assured with a written contract containing all work specifications. Back this up with a 10 Year Warranty and the package is complete. Decksunlimited quality standards and unbeatable value allow you to create a personalized "back to nature " get away right in the comforts of your backyard. The creation of an exciting outdoor project is just a phone call away. It's easy-- just call decksunlimited at 412.616.4378 and explore the possibilities.

"Bruce and his crew did an outstanding job completing my deck project. Bruce was attentive and accessible during the entire project. His team members were professional and the quality of the work speaks for itself. I would recommend these guys to anyone wanting to have a deck built."

Bill L on March 2025


"Mike and Jared were both fantastic to work with. They communicated often, showed up every time they said they would, and Ren the project as well as I've seen it done. The workers they sent were all respectful of my home, cleaned up after themselves, and did very high quality work! Hire them, you'll be glad you did."

Matt W on May 2025

Construction and Remodeling company that services both Commercial and Residential customers. We are licensed and insured.

"Mike and Jared were both fantastic to work with. They communicated often, showed up every time they said they would, and Ren the project as well as I've seen it done. The workers they sent were all respectful of my home, cleaned up after themselves, and did very high quality work! Hire them, you'll be glad you did."

Matt W on May 2025


Avatar for Dwell Construction LLC

Dwell Construction LLC

120 Pinkerton Drive
5.00(
5
)
Approved Pro

Dwell Construction LLC

120 Pinkerton Drive
5.00(
5
)
Approved Pro
15 years of experience
Warranties offered

Dwell Construction LLC 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. Dwell Construction LLC is a leading provider of construction management and general contracting services. We have a long history of successful projects in both the public and private sectors. Our experienced team has the knowledge and expertise to complete your project on time and on budget. We are committed to providing our clients with the highest quality of service and workmanship

"Dwell did a terrific job replacing a roof structure over our porch after a storm had compromised the original structure. The work was very well done, and all the guys at Dwell were great to deal with throughout the process. Highly recommend!"

Travis R on June 2025

Dwell Construction LLC 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. Dwell Construction LLC is a leading provider of construction management and general contracting services. We have a long history of successful projects in both the public and private sectors. Our experienced team has the knowledge and expertise to complete your project on time and on budget. We are committed to providing our clients with the highest quality of service and workmanship

"Dwell did a terrific job replacing a roof structure over our porch after a storm had compromised the original structure. The work was very well done, and all the guys at Dwell were great to deal with throughout the process. Highly recommend!"

Travis R on June 2025


A & J Contracting Company, LLC

118 Foxtail Drive
5.00(
21
)
Approved Pro

A & J Contracting Company, LLC

118 Foxtail Drive
5.00(
21
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
30 years of experience

A & J Contracting Company, LLC is Pittsburgh's premier professional home improvement company operating as general and specialty contractors in the finish and rough carpentry industry. We are most famous for the beautiful custom kitchen and bathrooms we design and remodel for both our residential and commercial clients. You will find that we are a dedicated small business enterprise committed to providing quality construction services and on time service delivery within budget. Please call us today to schedule your appointment with Pittsburgh's true professionals. Your satisfaction is our guarantee.

"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!!"

Steven K on May 2021

A & J Contracting Company, LLC is Pittsburgh's premier professional home improvement company operating as general and specialty contractors in the finish and rough carpentry industry. We are most famous for the beautiful custom kitchen and bathrooms we design and remodel for both our residential and commercial clients. You will find that we are a dedicated small business enterprise committed to providing quality construction services and on time service delivery within budget. Please call us today to schedule your appointment with Pittsburgh's true professionals. Your satisfaction is our guarantee.

"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!!"

Steven K on May 2021


Avatar for Tri-State Contracting, Inc.

Tri-State Contracting, Inc.

24 Linton Ave
4.80(
10
)
Approved Pro

Tri-State Contracting, Inc.

24 Linton Ave
4.80(
10
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
12 local quotes requested

Here at Tri-State Contracting Inc, we pride our company on reliability, great communication, integrity, and quality work. We are a veteran owned locally operated company. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"He's very personable guy, he is reasonable and work with you!"

Thomas S on April 2025

Here at Tri-State Contracting Inc, we pride our company on reliability, great communication, integrity, and quality work. We are a veteran owned locally operated company. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"He's very personable guy, he is reasonable and work with you!"

Thomas S on April 2025


Avatar for Mangone Contracting

Mangone Contracting

339 Murry Avenue
5.00(
8
)
Approved Pro

Mangone Contracting

339 Murry Avenue
5.00(
8
)
Approved Pro
Super Service Award
Customers say: Quick response
10 local quotes requested
20 years of experience

Mangone Contracting, is a well established company in Arnold, which serves the surrounding communities too. We offer the best in customer service, as well as, professionalism. Our company prides itself on integrity, so our work reflects that. Call us for your next project.

"We hired Mangone Contracting to build a sunroom and deck on the back of our house. Working with Eric and his team was a real pleasure. We could not have asked for a more gracious and talented crew. Eric's team handled EVERYTHING... designs, permits, construction, finishing, and several final adjustments. We are delighted with the outcome. Even the building and electrical inspectors commented on the excellent quality of their work. I highly recommend Mangone Construction - without reservation. They will be my contractor of choice for all future projects. "

Mark D on July 2025

Mangone Contracting, is a well established company in Arnold, which serves the surrounding communities too. We offer the best in customer service, as well as, professionalism. Our company prides itself on integrity, so our work reflects that. Call us for your next project.

"We hired Mangone Contracting to build a sunroom and deck on the back of our house. Working with Eric and his team was a real pleasure. We could not have asked for a more gracious and talented crew. Eric's team handled EVERYTHING... designs, permits, construction, finishing, and several final adjustments. We are delighted with the outcome. Even the building and electrical inspectors commented on the excellent quality of their work. I highly recommend Mangone Construction - without reservation. They will be my contractor of choice for all future projects. "

Mark D on July 2025


Avatar for John J. Corcoran Construction Co

John J. Corcoran Construction Co

187 Shenot Road
4.88(
8
)
Approved Pro

John J. Corcoran Construction Co

187 Shenot Road
4.88(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
171 local quotes requested

John J Corcoran Construction Co is your premier company for custom carpentry and renovation projects. We specialize in building and renovating decks and porches, kitchens and baths, gazebos and pergolas. We also do rough framing for houses and additions, sheds and barns, and finished basements. In addition, we do light commercial construction. With 45 years in business, our family owned and operated company has the experience and knowledge to complete the most complicated projects. We strive to satisfy all of our customers and will go the extra mile to make sure you're completely happy with the finished product.

"No one else wanted to do the structural job we needed done to make our deck safe. Everyone else wanted a new build when the deck was still in good shape. I was so happy I found him to do the job that no one else wanted too."

Lauri S on January 2025

John J Corcoran Construction Co is your premier company for custom carpentry and renovation projects. We specialize in building and renovating decks and porches, kitchens and baths, gazebos and pergolas. We also do rough framing for houses and additions, sheds and barns, and finished basements. In addition, we do light commercial construction. With 45 years in business, our family owned and operated company has the experience and knowledge to complete the most complicated projects. We strive to satisfy all of our customers and will go the extra mile to make sure you're completely happy with the finished product.

"No one else wanted to do the structural job we needed done to make our deck safe. Everyone else wanted a new build when the deck was still in good shape. I was so happy I found him to do the job that no one else wanted too."

Lauri S on January 2025


Avatar for Green Landscaping

Green Landscaping

P.O. Box 255
4.73(
150
)
Approved Pro

Green Landscaping

P.O. Box 255
4.73(
150
)
Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
172 local quotes requested

Green Landscaping is a family owned and full service landscape and hardscape company serving the North Hills of Pittsburgh. We take pride in our work giving you a quality product. The owner Cullen looks over all jobs and and ensures customer satisfaction no matter the size or price. We are fully insured and offer free estimates.

"Cullen was able to turn the mess which was left from a previous contractor into a beautiful backyard. He was responsive to our questions. His crew was great! They got the work done timely and the results were awesome! We will definitely use Cullen and his team in the future for any landscaping needs."

Celeste L on November 2023

Green Landscaping is a family owned and full service landscape and hardscape company serving the North Hills of Pittsburgh. We take pride in our work giving you a quality product. The owner Cullen looks over all jobs and and ensures customer satisfaction no matter the size or price. We are fully insured and offer free estimates.

"Cullen was able to turn the mess which was left from a previous contractor into a beautiful backyard. He was responsive to our questions. His crew was great! They got the work done timely and the results were awesome! We will definitely use Cullen and his team in the future for any landscaping needs."

Celeste L on November 2023


Avatar for Cullen Construction

Cullen Construction

8249 Thompson Run Rd
4.53(
72
)
Approved Pro

Cullen Construction

8249 Thompson Run Rd
4.53(
72
)
Approved Pro
Customers say: Quality work
50 local quotes requested
29 years of experience

Home remodeling company that has myself and my help working hands on, on your projects. (not some g.c. You only see when you sign checks.) I use sub contractors to do my plumbing and electrical work. I am licenced in pa.as a contractor. My # is 055911. Each job is priced seperately. Bigger projects by contract. I can work on smaller jobs by an hourly rate usually $45.00. I carry $2,000,000 liability insurance. (that i have never used). I have never been sued or brought to court. I have alot of repeat customers which speaks for itself. I think of myself as a honest man who just wants to provide a good quality service to people who need someone they can trust with their biggest investment. Their home! I have lived in ireland england and the u.s.a. And have worked in the construction indusrty in all three countries. I have a degree in drafting helpful in instalations and design changes. I belive that the customer is always right!!! I do all and any work that comes my way. Not too proud to do small jobs. You never know where it will leadto. I fixed a leaking skylight for $150.00 and the next spring built the same customer huge wrap around deck for $20,000.00. Call 412-414-5870.

"My wife and I wanted to remove a load bearing wall in our house, and hired Bob and his crew for the job. They were absolutely exceptional from start to finish. Bob did brilliant work moving ducts and with his finishing work to make the house look as though the wall had never been there. I not only would, but I would ONLY hire Bob and his guys for any contracting work we need done in the future. I can not express how highly I recommend them."

Nick F on February 2022

Home remodeling company that has myself and my help working hands on, on your projects. (not some g.c. You only see when you sign checks.) I use sub contractors to do my plumbing and electrical work. I am licenced in pa.as a contractor. My # is 055911. Each job is priced seperately. Bigger projects by contract. I can work on smaller jobs by an hourly rate usually $45.00. I carry $2,000,000 liability insurance. (that i have never used). I have never been sued or brought to court. I have alot of repeat customers which speaks for itself. I think of myself as a honest man who just wants to provide a good quality service to people who need someone they can trust with their biggest investment. Their home! I have lived in ireland england and the u.s.a. And have worked in the construction indusrty in all three countries. I have a degree in drafting helpful in instalations and design changes. I belive that the customer is always right!!! I do all and any work that comes my way. Not too proud to do small jobs. You never know where it will leadto. I fixed a leaking skylight for $150.00 and the next spring built the same customer huge wrap around deck for $20,000.00. Call 412-414-5870.

"My wife and I wanted to remove a load bearing wall in our house, and hired Bob and his crew for the job. They were absolutely exceptional from start to finish. Bob did brilliant work moving ducts and with his finishing work to make the house look as though the wall had never been there. I not only would, but I would ONLY hire Bob and his guys for any contracting work we need done in the future. I can not express how highly I recommend them."

Nick F on February 2022


Avatar for Steeltown Home Design

Steeltown Home Design

317 Rhodes Lane
4.95(
19
)
Approved Pro

Steeltown Home Design

317 Rhodes Lane
4.95(
19
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
375 local quotes requested

Here at Steeltown Home Design, We are your one stop source that delivers quality work, with a service-oriented attitude. We have been serving residential and commercial clients with 17+ years of experience tailoring to a wide variety of remodeling and cleaning services. We look forward to doing business with you! Contact us today with any questions or to get an estimate on any other home improvement project.

"I am very happy with this company. They replied shortly after I sent a request using angi.com. They were also very easy to communicate with and on time. I am very happy with their service and would definitely hire them again! A true 5-star company!"

Sasa Z on September 2025

Here at Steeltown Home Design, We are your one stop source that delivers quality work, with a service-oriented attitude. We have been serving residential and commercial clients with 17+ years of experience tailoring to a wide variety of remodeling and cleaning services. We look forward to doing business with you! Contact us today with any questions or to get an estimate on any other home improvement project.

"I am very happy with this company. They replied shortly after I sent a request using angi.com. They were also very easy to communicate with and on time. I am very happy with their service and would definitely hire them again! A true 5-star company!"

Sasa Z on September 2025

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FAQs for addition to existing structure building service projects in Mars, PA

Yes, hidden rooms are legal, as long as they meet all local building regulations. If you sell your house, most states require homeowners to disclose full houseplans, which would include any hidden rooms.

If your secret room is a safe room, it should contain a means of communication aside from a cell phone, such as a shortwave radio. You should also have plenty of drinking water, a portable generator, emergency food supplies, blankets, pillows, flashlights, batteries and a first aid kit.

Any time you update your home’s square footage, you increase its value, but a secret room is a niche feature that doesn't rank high on every buyer’s list of must-haves. Investing your money in remodeling more common living areas like bedrooms, bathrooms, or kitchens will have a higher ROI than adding a secret room. Many secret rooms can act as entertainment spaces (think a game room or wine cellar) or quiet spaces (a library or study), so when building your secret room you may want to consider its versatility for when you’re ready to sell.

The Mars, 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.

  • A renovated kitchen with a waterfall island

    HomeAdvisor’s DIY Kitchen Remodel Cost Guide looks at the cost of buying supplies and doing the work yourself. Find the key cost factors and how to cut expenses.

  • Secret room within bookcase

    HomeAdvisor's expert guide walks you through the cost to build a secret room, whether you're creating a safe room for security or a fun space to fulfil your childhood fantasies. Use this guide to help plan your secret room project and explore room, concea

  • outdoor patio bar

    Explore the cost to build a bar in your home and learn how materials, wet vs. dry bars, and labor costs influence the total price of your project.