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Find Doors (interior) installers and replacers in Dover

Derosier Property Services

5.00(
1
)
Approved Pro

Derosier Property Services

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
8 years of experience

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

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Tony S on August 2022

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

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Tony S on August 2022


Avatar for Envy Homes, LLC

Envy Homes, LLC

4.75(
2
)
Approved Pro

Envy Homes, LLC

4.75(
2
)
Approved Pro
Customers say: Terrific value
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

With over 10 years in the industry, Envy Homes LLC, takes great pride on providing quality service that customers can believe in. We will always see each project through to the customer's satisfaction. Give us a call today for an estimate and to get a General Contractor out to your home or business today!

"They showed up on time each day, were very knowledgeable of the work they performed. Showed up for the quote when we scheduled the first meeting and we were very impressed with the overall experience. The deck they built was spot on and perfect for our needs. They did make some recommendations as to how it would look and work better for us and we went with their decisions and are so happy and impressed. They were very neat about their work and very easy to talk with. I would never use anyone else, and HIGHLY RECOMMEND them for whatever you need. So great to work with."

phyllis p on July 2023

With over 10 years in the industry, Envy Homes LLC, takes great pride on providing quality service that customers can believe in. We will always see each project through to the customer's satisfaction. Give us a call today for an estimate and to get a General Contractor out to your home or business today!

"They showed up on time each day, were very knowledgeable of the work they performed. Showed up for the quote when we scheduled the first meeting and we were very impressed with the overall experience. The deck they built was spot on and perfect for our needs. They did make some recommendations as to how it would look and work better for us and we went with their decisions and are so happy and impressed. They were very neat about their work and very easy to talk with. I would never use anyone else, and HIGHLY RECOMMEND them for whatever you need. So great to work with."

phyllis p on July 2023


Avatar for Dana Smith Building

Dana Smith Building

5.00(
5
)
Approved Pro

Dana Smith Building

5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

Smith Building provides services to the seacoast area. We practice up to date building techniques using the best materials available and strive for the best on each job. We have a strong relationship with our subcontractors and vendor. We put our customers first and help guide and complete each project in a timely manner. we look forward to continuing to provide the area with best work we can! Dana Smith

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Pete R on April 2020

Smith Building provides services to the seacoast area. We practice up to date building techniques using the best materials available and strive for the best on each job. We have a strong relationship with our subcontractors and vendor. We put our customers first and help guide and complete each project in a timely manner. we look forward to continuing to provide the area with best work we can! Dana Smith

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Pete R on April 2020


Karls Builders LLC

5.00(
1
)
Approved Pro

Karls Builders LLC

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

We're a locally owned and operated company with over 8 years of industry experience. We value honesty and integrity, and stand behind our work. We specialize in cabinetry installation, custom closets, interior trim and decorative molding installation, built-in furniture, and a variety of related projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building long-term relationships with our clients and guarantee your satisfaction!

"I called them to install a new recessed beam in my home to create more open living space. They showed up when they said they would and did a great job."

Steven C on December 2024

We're a locally owned and operated company with over 8 years of industry experience. We value honesty and integrity, and stand behind our work. We specialize in cabinetry installation, custom closets, interior trim and decorative molding installation, built-in furniture, and a variety of related projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building long-term relationships with our clients and guarantee your satisfaction!

"I called them to install a new recessed beam in my home to create more open living space. They showed up when they said they would and did a great job."

Steven C on December 2024


Avatar for House Doctors of Seacoast

House Doctors of Seacoast

5.00(
5
)
Approved Pro

House Doctors of Seacoast

5.00(
5
)
Approved Pro
24 local quotes requested
Free onsite estimate

Whether you've decided to remodel the interior of your home, complete the home repairs crowding your to-do list, or simply need some help with general maintenance to keep things in check, House Doctors is the trusted handyman service for all your home and business repair and improvement needs. We're the leading property repair and maintenance company in the United States. For over 20 years, homeowners and commercial property owners have chosen House Doctors locations nationwide for their high customer service, reliability, and workmanship standards. It's all part of our difference, and we're proud to continue to deliver handyman services that truly stand out.

Whether you've decided to remodel the interior of your home, complete the home repairs crowding your to-do list, or simply need some help with general maintenance to keep things in check, House Doctors is the trusted handyman service for all your home and business repair and improvement needs. We're the leading property repair and maintenance company in the United States. For over 20 years, homeowners and commercial property owners have chosen House Doctors locations nationwide for their high customer service, reliability, and workmanship standards. It's all part of our difference, and we're proud to continue to deliver handyman services that truly stand out.


Smith Home Renovation

5.00(
5
)
Approved Pro

Smith Home Renovation

5.00(
5
)
Approved Pro
Super Service Award
21 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Great experience!"

Kelly C on October 2025

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Great experience!"

Kelly C on October 2025


Avatar for Augi Traynor Construction, LLC

Augi Traynor Construction, LLC

5.00(
28
)
Approved Pro

Augi Traynor Construction, LLC

5.00(
28
)
Approved Pro
Customers say: Quick response
21 years of experience
Free onsite estimate

When working with Augi Traynor Construction, you'll will appreciate our attention to detail and cleanliness. Whether it is new doors and windows, a remodel, or just some rot repair, we are dedicated to doing the job right the first time.With our 24 hour service available, you'll never have a project we can't handle!

"Augi and his Crew have Exceedingly Strong Work Ethics which are very hard to find in this day and age! From evaluation of job site/scope of work involved and quote to completion of project they far exceeded my expectations! Professionalism, Personable, Prompt, Perfectionism and Pristine describe the Outstanding Qualities of Augi Traynor Construction, LLC. Look no further. Call Augi Traynor Construction, LLC for your construction needs."

Melinda W on October 2025

When working with Augi Traynor Construction, you'll will appreciate our attention to detail and cleanliness. Whether it is new doors and windows, a remodel, or just some rot repair, we are dedicated to doing the job right the first time.With our 24 hour service available, you'll never have a project we can't handle!

"Augi and his Crew have Exceedingly Strong Work Ethics which are very hard to find in this day and age! From evaluation of job site/scope of work involved and quote to completion of project they far exceeded my expectations! Professionalism, Personable, Prompt, Perfectionism and Pristine describe the Outstanding Qualities of Augi Traynor Construction, LLC. Look no further. Call Augi Traynor Construction, LLC for your construction needs."

Melinda W on October 2025


Avatar for DCL Construction

DCL Construction

5.00(
7
)
Approved Pro

DCL Construction

5.00(
7
)
Approved Pro
Customers say: Quick response
19 local quotes requested
25 years of experience

DCL is dedicated to Providing Reliable Custom Home Renovation Services Since 1999. Serving both residential and commercial markets for over 20 years, we’ve provided skilled and reliable services to general contractors and homeowners in Massachusetts and New Hampshire. We are fully insured, well-equipped and trained to handle projects on various types of structures. Our team of professionals employs high standards of quality and cleanliness to ensure that every project exceeds our client’s expectations. Focused on providing superior results at competitive rates, our team will provide you with an honest assessment of the job and give you an estimate that is in line with market standards. DCL strives to give you more value for your money by pairing our services with fantastic customer service. We are more than happy to promptly address your concerns about any project. We also understand the importance of your time. That’s why we get the job done right the first time!

"DCL did an awesome job on my small condo. Loving the transformation! Thank you! "

Ryan N on November 2025

DCL is dedicated to Providing Reliable Custom Home Renovation Services Since 1999. Serving both residential and commercial markets for over 20 years, we’ve provided skilled and reliable services to general contractors and homeowners in Massachusetts and New Hampshire. We are fully insured, well-equipped and trained to handle projects on various types of structures. Our team of professionals employs high standards of quality and cleanliness to ensure that every project exceeds our client’s expectations. Focused on providing superior results at competitive rates, our team will provide you with an honest assessment of the job and give you an estimate that is in line with market standards. DCL strives to give you more value for your money by pairing our services with fantastic customer service. We are more than happy to promptly address your concerns about any project. We also understand the importance of your time. That’s why we get the job done right the first time!

"DCL did an awesome job on my small condo. Loving the transformation! Thank you! "

Ryan N on November 2025


Avatar for J.L. Building and Carpentry

J.L. Building and Carpentry

5.00(
1
)
Approved Pro

J.L. Building and Carpentry

5.00(
1
)
Approved Pro
Free onsite estimate

With over 6 years in the business,we take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Call us today.

With over 6 years in the business,we take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Call us today.


Avando Inc.

5.00(
3
)
Approved Pro

Avando Inc.

5.00(
3
)
Approved Pro
14 years of experience
Free onsite estimate

I specialize in clean, precise, and professional exterior window and door installations. My focus is quality—every project is done with care, accurate measurements, and attention to detail so your home looks great and performs even better. I show up on time, communicate clearly, and make the process stress-free from start to finish. If you want modern results, reliable service, and craftsmanship you can trust, I’m the right choice

"Denis is great professional. Installed 10 windows at my house, did everything in professional manner, in time, and clean! Highly recommend "

Thomas H on November 2025

I specialize in clean, precise, and professional exterior window and door installations. My focus is quality—every project is done with care, accurate measurements, and attention to detail so your home looks great and performs even better. I show up on time, communicate clearly, and make the process stress-free from start to finish. If you want modern results, reliable service, and craftsmanship you can trust, I’m the right choice

"Denis is great professional. Installed 10 windows at my house, did everything in professional manner, in time, and clean! Highly recommend "

Thomas H on November 2025

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FAQs for doors (interior) installation and replacement projects in Dover, NH

If your existing frame is in good shape, you can replace an interior door without changing the frame. This is a budget-friendly option because it saves on the cost of removing and installing a new frame. By choosing a slab door that fits your current frame, you'll save on labor and materials. Just make sure the new door matches the old one's dimensions for a smooth replacement.

Standard interior doors are 80 inches tall and range from 28 to 32 inches wide. Interior doors vary from 24 to 36 inches wide, depending on their purpose and the available space. Building codes require interior doors to be at least 80 inches tall and 24 inches wide. Knowing standard sizes helps you select a new door that fits properly in your existing opening.

It costs $600 to $2,000 or more to move an inside door. The total price depends on your location, the type of door, and materials needed to complete the project. Moving an interior door requires walling up the leftover space and opening up a new wall where you want the door to go instead. You’ll also want to plan for the expense of framing the new wall opening and adding trim.

Exterior door installation costs an average of $1,175, with a typical range of $525 to $1,800. The higher expense compared to the cost of interior doors comes from the need for exterior doors to be weather-proofed and they are often made of thicker, more durable materials. The associated exterior hardware must also be able to withstand harsh weather, so these cost more as well.

It costs between $300 to $2,500 to make a doorway wider on average. However, the wider you need the space to be, the more it will cost. Some homeowners choose to widen interior doorways to make the house more wheelchair accessible. In order to be wheelchair accessible, an interior door needs to be at least 32 to 36 inches wide. Also, some older homes just have narrow doorways due to the nature of how homes were built differently many decades ago.

It takes between two to five hours for a professional door installer to install an interior door, depending on complexity and materials. A pre-hung door typically takes around two hours, and larger doors like double French doors can take up to five hours. If you’re doing the project yourself, expect it to take a little longer than that, especially if you have little to no experience completing this type of project. Keep in mind that a pre-hung door can be installed about an hour or two faster than a slab door.

The Dover, NH homeowners’ guide to doors (interior) installations and replacements

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