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Find Second story addition builders in Thornton

Avatar for Sentri Homes

Sentri Homes

No reviews yet

Sentri Homes

No reviews yet
2479 local quotes requested

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.

Quality Construction

No reviews yet

Quality Construction

No reviews yet
19 years of experience

Quality Construction Services LLC has been remodeling and building custom homes. We specialize in energy efficient building and remodeling. Our remodeling projects include additions, kitchens, baths, master suites and basements.Our carpenters are craftsmen who have been providing excellent service to our clients for almost 30 years.

Quality Construction Services LLC has been remodeling and building custom homes. We specialize in energy efficient building and remodeling. Our remodeling projects include additions, kitchens, baths, master suites and basements.Our carpenters are craftsmen who have been providing excellent service to our clients for almost 30 years.

Avatar for Chadds Ford Climate Control, Inc.

Chadds Ford Climate Control, Inc.

4.77(
13
)

Chadds Ford Climate Control, Inc.

4.77(
13
)
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

WELCOME TO CHADDS FORD CLIMATE CONTROL! Chadds Ford Climate Control offers a broad range of skilled services to create a more comfortable, productive, and rewarding home and work environment. We promote superior efficiency, convenience, and accessibility through proven effective equipment and procedures. Our certified technicians bring you safe and viable solutions to the design/build, retrofit, maintenance, and repair of all types of heating and cooling systems, including ductless and geothermal, air quality improvements, thermostats, back up generators, water heaters, and electrical and plumbing services.

"Everything was Great, Very Professional Company.Would Hire again."

Ed P on December 2020

WELCOME TO CHADDS FORD CLIMATE CONTROL! Chadds Ford Climate Control offers a broad range of skilled services to create a more comfortable, productive, and rewarding home and work environment. We promote superior efficiency, convenience, and accessibility through proven effective equipment and procedures. Our certified technicians bring you safe and viable solutions to the design/build, retrofit, maintenance, and repair of all types of heating and cooling systems, including ductless and geothermal, air quality improvements, thermostats, back up generators, water heaters, and electrical and plumbing services.

"Everything was Great, Very Professional Company.Would Hire again."

Ed P on December 2020

Avatar for Michael & Son Svc Inc

Michael & Son Svc Inc

4.17(
1,667
)

Michael & Son Svc Inc

4.17(
1,667
)
Customers say: Super punctual
49 years of experience

Michael & Son is family owned & operated and has been servicing the Virginia, Maryland and Washington DC area for over 30 years. We take great pride in providing our customers with the highest quality plumbing services. Our professional and courteous staff are here to help you with whatever projects you need to get done.

"James Chaneybey was very professional and nice, very satisfied with the work he's done and would like to use him again in the future."

sharon w on August 2025

Michael & Son is family owned & operated and has been servicing the Virginia, Maryland and Washington DC area for over 30 years. We take great pride in providing our customers with the highest quality plumbing services. Our professional and courteous staff are here to help you with whatever projects you need to get done.

"James Chaneybey was very professional and nice, very satisfied with the work he's done and would like to use him again in the future."

sharon w on August 2025

Avatar for Century Marble & Granite LLC

Century Marble & Granite LLC

5.00(
3
)

Century Marble & Granite LLC

5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

With over 20 years in the remodeling business, we are here to help you with your kitchen and bathroom remodels and any countertop work or dreams you may have. Ask us about our military and senior discount. www.centurygranitellc.com

"The service was very good and they were excellent."

Patricia D on July 2021

With over 20 years in the remodeling business, we are here to help you with your kitchen and bathroom remodels and any countertop work or dreams you may have. Ask us about our military and senior discount. www.centurygranitellc.com

"The service was very good and they were excellent."

Patricia D on July 2021

Avatar for Turk's Contracting LLC

Turk's Contracting LLC

4.83(
6
)

Turk's Contracting LLC

4.83(
6
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We where built on the principles of quality over quantity, I’m Conor Tukel the owner of Turk’s Contracting. I started this business because I have a passion for creating anything that is needed and fixing anything that has an issue. This largely comes from my experience and exposure to craftsmanship and repair from a young age. Our main focus is custom projects and small/medium projects. We believe durability, longevity, well planning, communication and leaving a work site better then you found it are the fundamentals of are field of work. We stand behind are work! All of are services are back by a warranty.

"Great for snow removal— very reliable, friendly, and efficient."

Paul S on August 2021

We where built on the principles of quality over quantity, I’m Conor Tukel the owner of Turk’s Contracting. I started this business because I have a passion for creating anything that is needed and fixing anything that has an issue. This largely comes from my experience and exposure to craftsmanship and repair from a young age. Our main focus is custom projects and small/medium projects. We believe durability, longevity, well planning, communication and leaving a work site better then you found it are the fundamentals of are field of work. We stand behind are work! All of are services are back by a warranty.

"Great for snow removal— very reliable, friendly, and efficient."

Paul S on August 2021

AEGermani Construction Co

No reviews yet

AEGermani Construction Co

No reviews yet
Avatar for ServiceMark Heating Cooling & Plumbing

ServiceMark Heating Cooling & Plumbing

4.74(
43
)

ServiceMark Heating Cooling & Plumbing

4.74(
43
)
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers

For more than six decades now, ServiceMark has been providing comfort without compromise. Today, our exceptional team of technicians, installers, master plumbers, sales professionals and support staff consider your satisfaction their success. We offer 24/7 Emergency Service! Additional email - john.mclaughlin@servicemarksolutions.com. Additional DBA - ServiceMark, Heating, Cooling & Plumbing.

"Initially I gave Service Mark a great review, but after getting an estimate from them for a hot water heater and subsequently finding out that they didn't install the condensation line for the heater correctly, I have to say I would not do business with them again. Their salesman told me he had never seen a 4" chimney liner for a hot water heater before. He told me I needed to have the liner replaced leading to a $2400 estimate for a hot water heater and new chimney liner. I ended up having another company install a new hot water heater for $800 using the existing 4" liner, they also let me know that 4" liners were very common (they said the Service Mark guy was either lying or didn't know what he was doing). They also didn't install the condensation line correctly on my heater. When I went to sell my house the U and O inspector told me that the condensation line was not allowed to drain into the sewer line, it's supposed to drain outside. I called them to see if they would fix this, but they never called me back. I would not recommend using this company and have no plans to work with them again."

Daniel W on April 2018

For more than six decades now, ServiceMark has been providing comfort without compromise. Today, our exceptional team of technicians, installers, master plumbers, sales professionals and support staff consider your satisfaction their success. We offer 24/7 Emergency Service! Additional email - john.mclaughlin@servicemarksolutions.com. Additional DBA - ServiceMark, Heating, Cooling & Plumbing.

"Initially I gave Service Mark a great review, but after getting an estimate from them for a hot water heater and subsequently finding out that they didn't install the condensation line for the heater correctly, I have to say I would not do business with them again. Their salesman told me he had never seen a 4" chimney liner for a hot water heater before. He told me I needed to have the liner replaced leading to a $2400 estimate for a hot water heater and new chimney liner. I ended up having another company install a new hot water heater for $800 using the existing 4" liner, they also let me know that 4" liners were very common (they said the Service Mark guy was either lying or didn't know what he was doing). They also didn't install the condensation line correctly on my heater. When I went to sell my house the U and O inspector told me that the condensation line was not allowed to drain into the sewer line, it's supposed to drain outside. I called them to see if they would fix this, but they never called me back. I would not recommend using this company and have no plans to work with them again."

Daniel W on April 2018

Wallscapes Custom Remodeling & Paint

No reviews yet

Wallscapes Custom Remodeling & Paint

No reviews yet

EuroCountertops Granite&Marble LLC

5.00(
2
)

EuroCountertops Granite&Marble LLC

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We specify in all kinds of stone (marble, granite, quarts, etc.) fabrication and installation for kitchens, bathrooms, fireplaces, outdoor kitchens/grill, etc.

We specify in all kinds of stone (marble, granite, quarts, etc.) fabrication and installation for kitchens, bathrooms, fireplaces, outdoor kitchens/grill, etc.

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FAQs for second story addition building service projects in Thornton, PA

For many homeowners, building up is worth the expense because it provides the extra bedrooms or living areas that can’t be accommodated within the existing footprint. A larger, updated home often commands a higher resale price, recouping a sizable share of the project cost while allowing you to stay in the neighborhood you love. Run the numbers with a real estate agent and contractor to ensure the expected return and day-to-day benefits align with your goals.

Whether it makes more sense to build up or out depends on your lot, budget, and local code. Building up preserves yard space and involves less foundation work, but you may need to vacate the home during construction. Building out avoids staircases and can proceed while you stay put; however, it encroaches on the yard and may face setback limits. Compare both options with your contractor before making a decision.

A structural engineer will first inspect the existing foundation for cracks, footings, and load capacity. Depending on the findings, the crew may pour new concrete footings, install steel or concrete piers, add reinforced beams, or tie additional rebar into the slab. These upgrades redistribute the weight of the new floor and bring the structure up to code. Your contractor will outline the specific reinforcement plan and timeline once the engineering report is complete.

The Thornton, PA homeowners’ guide to second story addition building services

From average costs to expert advice, get all the answers you need to get your job done.

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