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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon49
    Verified basement remodels reviews

Find Basement remodelers in Cornwall

Avatar for Blue Mountain Building & Remodeling Inc

Blue Mountain Building & Remodeling Inc

309 Evergreen Street
4.42(
69
)
Approved Pro

Blue Mountain Building & Remodeling Inc

309 Evergreen Street
4.42(
69
)
Approved Pro
Customers say: Quality work
42 local quotes requested
23 years of experience

BRINGING YOUR RENOVATION DREAMS TO LIFE What We Do: You have the vision, and Blue Mountain Building & Remodeling has the expertise to make it a reality. We treat every project as if it were our own home—blending style and function while keeping your space clean and organized throughout the process. Our Approach: At Blue Mountain Building & Remodeling, we make renovations stress-free. With clear, consistent communication and a commitment to staying on schedule, you’ll always know exactly where we stand. We start on time and keep you updated every step of the way. Our Mission: From design to installation, we're here to help bring your addition or renovation vision to life--whether it's an addition, a kitchen remodel or a whole-home transformation. 25 years of experience Over 500 successful projects completed Contact us today to schedule your FREE consultation and get started!

"Would highly recommend Jason and Blue Mountain. We recently used him for a master bedroom and bathroom remodel as well as renovations to our screened in porch. Jason was responsive and communicated with us every step of the way. He met the timeline and deadlines that were set for our projects. Jason and his skilled employees were friendly, courteous and a pleasure to have in our home. Their work was meticulous and they cleaned up every day before leaving our home. We are thrilled with our upgrades and have future projects planned with Jason and Blue Mountain Building."

Richard H on January 2022

BRINGING YOUR RENOVATION DREAMS TO LIFE What We Do: You have the vision, and Blue Mountain Building & Remodeling has the expertise to make it a reality. We treat every project as if it were our own home—blending style and function while keeping your space clean and organized throughout the process. Our Approach: At Blue Mountain Building & Remodeling, we make renovations stress-free. With clear, consistent communication and a commitment to staying on schedule, you’ll always know exactly where we stand. We start on time and keep you updated every step of the way. Our Mission: From design to installation, we're here to help bring your addition or renovation vision to life--whether it's an addition, a kitchen remodel or a whole-home transformation. 25 years of experience Over 500 successful projects completed Contact us today to schedule your FREE consultation and get started!

"Would highly recommend Jason and Blue Mountain. We recently used him for a master bedroom and bathroom remodel as well as renovations to our screened in porch. Jason was responsive and communicated with us every step of the way. He met the timeline and deadlines that were set for our projects. Jason and his skilled employees were friendly, courteous and a pleasure to have in our home. Their work was meticulous and they cleaned up every day before leaving our home. We are thrilled with our upgrades and have future projects planned with Jason and Blue Mountain Building."

Richard H on January 2022


Avatar for Basement Finishing by Hartel Constr. Grp., Inc.

Basement Finishing by Hartel Constr. Grp., Inc.

601 Walnut Aly
4.78(
124
)
Approved Pro

Basement Finishing by Hartel Constr. Grp., Inc.

601 Walnut Aly
4.78(
124
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
20 years of experience

Hartel Construction Group Inc. is a locally owned and operated company that has an educated and licensed team. Each of us strive for perfection, take pride in each job, and truly enjoy what we do. Our company does not use sales tactics or pushy sales people to acquire jobs. We listen to what you would like to have completed and then offer insight and suggestion that will make your renovation/remodel project the most enjoyable finished product. We fully explain the steps to be taken in need to complete your project. Thank you for considering our company and using Angieslist for your remodeling/construction needs, we hope to help you get your basement project completed. Thank You, Martin Hartel

"I can’t say nice enough things about the process of working with Martin. We decided to finish our basement, including a full bathroom, while I was pregnant and wanted the job wrapped up before the baby came, which gave a very hard deadline. Not only was Martin able to work with us contacting him two months out on this project, he was so responsive during the process, gave us great ideas, and kept us well-informed on everything that was happening with the project. From start to finish, we always felt that Martin was knowledgeable about what he was doing and didn’t seem bothered when we had last minute changes. The entire team was so clean, which gave me comfort given that I was pregnant at the time, and they were able to complete everything before the baby came. If I had more basements, I would definitely call Martin!"

Jeshanah F on June 2025

Hartel Construction Group Inc. is a locally owned and operated company that has an educated and licensed team. Each of us strive for perfection, take pride in each job, and truly enjoy what we do. Our company does not use sales tactics or pushy sales people to acquire jobs. We listen to what you would like to have completed and then offer insight and suggestion that will make your renovation/remodel project the most enjoyable finished product. We fully explain the steps to be taken in need to complete your project. Thank you for considering our company and using Angieslist for your remodeling/construction needs, we hope to help you get your basement project completed. Thank You, Martin Hartel

"I can’t say nice enough things about the process of working with Martin. We decided to finish our basement, including a full bathroom, while I was pregnant and wanted the job wrapped up before the baby came, which gave a very hard deadline. Not only was Martin able to work with us contacting him two months out on this project, he was so responsive during the process, gave us great ideas, and kept us well-informed on everything that was happening with the project. From start to finish, we always felt that Martin was knowledgeable about what he was doing and didn’t seem bothered when we had last minute changes. The entire team was so clean, which gave me comfort given that I was pregnant at the time, and they were able to complete everything before the baby came. If I had more basements, I would definitely call Martin!"

Jeshanah F on June 2025


Avatar for RemodelingExpertsPA.com

RemodelingExpertsPA.com

244 Sheep Hill Rd
4.89(
18
)
Approved Pro

RemodelingExpertsPA.com

244 Sheep Hill Rd
4.89(
18
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
87 local quotes requested

Trust the Experts to make your next project seamless. We specials custom deck wood and composite decking, porch roof, bathroom and kitchen remodeling, constructing garages, and basement remodeling. We strive every time to go above and beyond to make our customer happy with the work completed.

"Professional, communicative, quality work, and affordable. Small crew was efficient and friendly."

Kathleen S on January 2025

Trust the Experts to make your next project seamless. We specials custom deck wood and composite decking, porch roof, bathroom and kitchen remodeling, constructing garages, and basement remodeling. We strive every time to go above and beyond to make our customer happy with the work completed.

"Professional, communicative, quality work, and affordable. Small crew was efficient and friendly."

Kathleen S on January 2025


Avatar for The Finishing Touch by Bratch

The Finishing Touch by Bratch

3560 RIVER ROAD
5.00(
9
)
Approved Pro

The Finishing Touch by Bratch

3560 RIVER ROAD
5.00(
9
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
42 local quotes requested

Construction is in my blood. Growing up around my family’s construction business since the age of 9, I’ve developed a deep understanding and hands-on experience in nearly every aspect of construction and remodeling. I also hold a college degree with a triple concentration in art, which gives me a unique eye for design and aesthetics. This blend of technical know-how and creative insight allows me to bring your vision to life - whether it’s a dream remodel or a design tailored to your personal style. Contact us at 717-663-9926 to discuss your renovation dreams and let us turn them into reality!

"Fantastic communication; quality workmanship; listens to customer input; reliable"

AMY S on June 2025

Construction is in my blood. Growing up around my family’s construction business since the age of 9, I’ve developed a deep understanding and hands-on experience in nearly every aspect of construction and remodeling. I also hold a college degree with a triple concentration in art, which gives me a unique eye for design and aesthetics. This blend of technical know-how and creative insight allows me to bring your vision to life - whether it’s a dream remodel or a design tailored to your personal style. Contact us at 717-663-9926 to discuss your renovation dreams and let us turn them into reality!

"Fantastic communication; quality workmanship; listens to customer input; reliable"

AMY S on June 2025


Avatar for BiiLT Contracting Group LLC

BiiLT Contracting Group LLC

4309 Linglestown Road
5.00(
7
)
Approved Pro

BiiLT Contracting Group LLC

4309 Linglestown Road
5.00(
7
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
89 local quotes requested

BiiLT Contracting Group in Harrisburg, PA, is a veteran-owned company committed to delivering superlative, delightful experiences to both our customers and employees. We are a seasoned team of experts with a combined 25+ years of home health care and interior construction experience. We are a caring, compassionate, and customer-focused company and we happen to be really good at construction. Our goal is to make your home your dream home whether you are looking to remodel, upgrade your home via energy efficiency or smart home technology, or are a senior aging in place.

"We chose Biilt because of their ratings and the fact that the company is veteran-led. In our first encounter, they listened well to our plans, were very pleasant and submitted a comprehensive bid. They were on-time, on budget and worked well with our plumbing supplier and our cabinet, counter and tile suppliers. Workers were courteous, clean and good at solving challenges in our 150-year-old home. We were happy with their support of our militaryveterans and have recommended them to friends. They even followed up a few months later to check on our satisfaction with their work."

GLENN M on February 2024

BiiLT Contracting Group in Harrisburg, PA, is a veteran-owned company committed to delivering superlative, delightful experiences to both our customers and employees. We are a seasoned team of experts with a combined 25+ years of home health care and interior construction experience. We are a caring, compassionate, and customer-focused company and we happen to be really good at construction. Our goal is to make your home your dream home whether you are looking to remodel, upgrade your home via energy efficiency or smart home technology, or are a senior aging in place.

"We chose Biilt because of their ratings and the fact that the company is veteran-led. In our first encounter, they listened well to our plans, were very pleasant and submitted a comprehensive bid. They were on-time, on budget and worked well with our plumbing supplier and our cabinet, counter and tile suppliers. Workers were courteous, clean and good at solving challenges in our 150-year-old home. We were happy with their support of our militaryveterans and have recommended them to friends. They even followed up a few months later to check on our satisfaction with their work."

GLENN M on February 2024


Avatar for Sheehan Carpentry & Remodeling

Sheehan Carpentry & Remodeling

828 Valley Lane
4.86(
7
)
Approved Pro

Sheehan Carpentry & Remodeling

828 Valley Lane
4.86(
7
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
18 local quotes requested

Getting the job done right and on time is important to owner, Robert Sheehan. Robert's great rapport with home owners is because his goal is to earn his customers trust and respect; to communicate effectively and to get the job done to his customer's satisfaction. Robert states, "My customers are my priority and I treat their home as if it were my own". Sheehan Carpentry & Remodeling serves Lebanon, Lancaster, Berks, and portions of Dauphin County, PA and is your professional choice for your next home improvement project. From custom remodeling, and home additions to decks, porches, siding, garages, and more. Call us today for a free estimate and begin to enjoy the beauty and comfort of your home.

Getting the job done right and on time is important to owner, Robert Sheehan. Robert's great rapport with home owners is because his goal is to earn his customers trust and respect; to communicate effectively and to get the job done to his customer's satisfaction. Robert states, "My customers are my priority and I treat their home as if it were my own". Sheehan Carpentry & Remodeling serves Lebanon, Lancaster, Berks, and portions of Dauphin County, PA and is your professional choice for your next home improvement project. From custom remodeling, and home additions to decks, porches, siding, garages, and more. Call us today for a free estimate and begin to enjoy the beauty and comfort of your home.


Avatar for Robert Horne Contracting

Robert Horne Contracting

751 River Corner Road
4.55(
80
)
Approved Pro

Robert Horne Contracting

751 River Corner Road
4.55(
80
)
Approved Pro
Super Service Award
Customers say: Quick response
14 years of experience
Free onsite estimate

Our mission is to provide the highest quality construction service at a fair price. We are licensed, insured, and stand behind everything we do. We work to ensure that you are 100% satisfied. We strive to exceed your expectations and deliver on our promises.

"We added a full bathroom in our garage and an additional 16 ft wall with an interior door. The project went well and we’re very happy with the work that was completed. Bob is an amazing person to work with as is his wife Laura. They made the process easy from planning & permitting, to choosing the right materials and layout. Everything went as expected. Bob went above and beyond to insure the job was completed on time as we had a specific timeframe that we needed the job to be completed. We would hire Bob again for another project in the future. Thanks so much Bob!"

Theodore G on October 2025

Our mission is to provide the highest quality construction service at a fair price. We are licensed, insured, and stand behind everything we do. We work to ensure that you are 100% satisfied. We strive to exceed your expectations and deliver on our promises.

"We added a full bathroom in our garage and an additional 16 ft wall with an interior door. The project went well and we’re very happy with the work that was completed. Bob is an amazing person to work with as is his wife Laura. They made the process easy from planning & permitting, to choosing the right materials and layout. Everything went as expected. Bob went above and beyond to insure the job was completed on time as we had a specific timeframe that we needed the job to be completed. We would hire Bob again for another project in the future. Thanks so much Bob!"

Theodore G on October 2025


Avatar for Choice Home Remodeling Inc.

Choice Home Remodeling Inc.

550 E Main St
4.94(
113
)
Approved Pro

Choice Home Remodeling Inc.

550 E Main St
4.94(
113
)
Approved Pro
Customers say: Super punctual
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers
191 local quotes requested

Choice Home Remodeling, Inc. is your complete remodeling company! We are a customer service-focused company with an unwavering commitment to quality workmanship. For over two decades, homeowners in Lancaster, Berks, Chester, and surrounding counties have chosen us for their home improvement projects. In fact, we have been voted #1 for the Lancaster Newspaper Reader’s Choice Award for “Favorite Window Installer” several years in row. What began as a window and door installation business back in 1995 with just two trucks and two employees has grown into a full-service home improvement company with the addition of a cabinetry division that offers kitchen and bath design, and whole home remodeling services. Additional DBA - Choice Cabinetry.

"They got there quickly and fixed everything. Storm door was closing and latching again. The siding was a last minute ask and he went up and secured it back in place."

Sean M on May 2025

Choice Home Remodeling, Inc. is your complete remodeling company! We are a customer service-focused company with an unwavering commitment to quality workmanship. For over two decades, homeowners in Lancaster, Berks, Chester, and surrounding counties have chosen us for their home improvement projects. In fact, we have been voted #1 for the Lancaster Newspaper Reader’s Choice Award for “Favorite Window Installer” several years in row. What began as a window and door installation business back in 1995 with just two trucks and two employees has grown into a full-service home improvement company with the addition of a cabinetry division that offers kitchen and bath design, and whole home remodeling services. Additional DBA - Choice Cabinetry.

"They got there quickly and fixed everything. Storm door was closing and latching again. The siding was a last minute ask and he went up and secured it back in place."

Sean M on May 2025


Avatar for Integrity General Construction

Integrity General Construction

1292 White Oak Rd
4.00(
2
)
Approved Pro

Integrity General Construction

1292 White Oak Rd
4.00(
2
)
Approved Pro
Free onsite estimate
Emergency services offered

At Integrity General Construction, I pride myself on 4 main values. First, honesty is uncompromisable as it is the foundation of trust in business and precedes any opportunity to make money. Second, my priority is to complete any project according to your specifications. I am not satisfied until you are satisfied. Third, I value and respect your time and privacy. I understand that it is a privilege to be hired by you and refuse to waste your time or infringe on your privacy, hence the establishment of trust first. Lastly, but perhaps most important, I value integrity - doing the right thing even when no one is watching. These 4 pillars of business combined with my experience and qualifications make two things certain: a job well done and which contractor you choose for your next home improvement project.

"His work was great except that he never shimmed up the windows sill, which left a wide gap between the sill and the windows trim. After paying $360, I must now fill those 4 inch wide gaps with 1 bys, Bondo and caulk. I feel at age 77 I shouldn't have to water proof the window sill myself. Reagan takes pride in his work but I feel he made a mistake on this job."

Gerald M on August 2025

At Integrity General Construction, I pride myself on 4 main values. First, honesty is uncompromisable as it is the foundation of trust in business and precedes any opportunity to make money. Second, my priority is to complete any project according to your specifications. I am not satisfied until you are satisfied. Third, I value and respect your time and privacy. I understand that it is a privilege to be hired by you and refuse to waste your time or infringe on your privacy, hence the establishment of trust first. Lastly, but perhaps most important, I value integrity - doing the right thing even when no one is watching. These 4 pillars of business combined with my experience and qualifications make two things certain: a job well done and which contractor you choose for your next home improvement project.

"His work was great except that he never shimmed up the windows sill, which left a wide gap between the sill and the windows trim. After paying $360, I must now fill those 4 inch wide gaps with 1 bys, Bondo and caulk. I feel at age 77 I shouldn't have to water proof the window sill myself. Reagan takes pride in his work but I feel he made a mistake on this job."

Gerald M on August 2025


Avatar for Kees Construction & Remodeling

Kees Construction & Remodeling

630 N Railroad St
4.93(
22
)
Approved Pro

Kees Construction & Remodeling

630 N Railroad St
4.93(
22
)
Approved Pro
Customers say: Quick response
4 years of experience
Free onsite estimate

Kees Construction & Remodeling 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.

"Employees were experienced and Professional. Maintained a very clean work area. "

Tom D on July 2025

Kees Construction & Remodeling 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.

"Employees were experienced and Professional. Maintained a very clean work area. "

Tom D on July 2025

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Basement Remodel questions, answered by experts

Although it’s not required, air ventilation in a finished basement can help improve the air quality, prevent moisture and mold issues, keep musty odors away, and also maintain the air quality throughout the rest of your home. Proper ventilation will help maintain the value of your investment in finishing your basement. Try basement ventilation methods like installing vents or a dehumidifier for best results.

Professional remodelers streamline the process, manage permits, and handle renovations efficiently—significantly mitigating risk while maintaining standards.

Egress windows or doors are required in finished basements to meet safety and building codes. If your basement is unfinished and used as a storage space, egress windows are not required, but anything considered a habitable space must have an additional point of egress in addition to the stairs.

Lifting a house and adding a basement is one way to add usable square footage. Lifting or jacking a house is a complex process, and it can be expensive, not to mention that you won’t be able to live in your house while it’s lifted, due to safety concerns. Lifting a house should only be done by experienced professionals.

The cost to remodel a basement is between $12,100 and $33,400 for the average homeowner. The price you pay can be as little as $3,500 or as much as $50,200, depending on the size and condition of your basement and the type of remodel you're doing. 

If you're doing a simple project like adding a home office to your basement, you can expect to pay anywhere from $500 to $3,000. However, if you're adding a bathroom, which is an extensive project, you can expect to pay between $6,600 to $16,500.

The Cornwall, PA homeowners’ guide to basement remodels

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

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