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New windows service pros in Concord
As the nation’s largest full-service exterior home remodeler, we are backed by over 1,000+ Angi Super Service awards and more than one million happy customers. Why? Because we treat each job as an audition. An opportunity to prove ourselves to you. And the results speak for themselves. So make your home all it was meant to be with our unrivaled exterior services. Contact us today for a free, no obligation estimate on replacement windows, roofing, siding, doors, or attic insulation.
"Sloppy, broken glass scattered about inside and outside of my home. Did not perform promised work. Had to withhold funds to get them to complete the job."
Chris W on June 2025
As the nation’s largest full-service exterior home remodeler, we are backed by over 1,000+ Angi Super Service awards and more than one million happy customers. Why? Because we treat each job as an audition. An opportunity to prove ourselves to you. And the results speak for themselves. So make your home all it was meant to be with our unrivaled exterior services. Contact us today for a free, no obligation estimate on replacement windows, roofing, siding, doors, or attic insulation.
"Sloppy, broken glass scattered about inside and outside of my home. Did not perform promised work. Had to withhold funds to get them to complete the job."
Chris W on June 2025
Then Window Source is the perfect destination for you. We offer the highest-quality replacement windows available at factory-direct pricing. We guarantee our customers get a premium, energy-efficient product for a fraction of the cost of our competitors’ models. No need to shop at the Big Box stores ever again. That’s the Window Source advantage. Need more than just windows? We also specialize in sliding doors, patio doors, and vinyl siding. Just fill out the quick form below and we’ll have one of our friendly sales professionals contact you right away. We do not offer repair work.
"Craig the installer did a great job. I was pleasantly surprised by how sturdy the windows were - i picked window source's mid-tier level window. The day after my windows were installed the first storm of the season (snow, rain & ice) arrived and the windows completely performed as they should. I never realized what in eyesore my old windows were until i had these installed. i cant even tell how the wrapping on the windows improved the look of my house! I would definitely recommend window source & i did to a family member. Also, their quote process was quick, 1/2 hour to get a price. Window Source wasn't on my radar while i was requesting quotes on angie's list but they came up as a recommendation & i can't tell you how glad i am I hired Window Source to install all my new windows. A friend had windows installed by a popular chain & Window Source beat the quality and look hands down! If you are like me nervous about hiring a contractor you really know nothing about - i am here to tell you will be happy you hired Window Source. Thank you window source for making my 55 year old house look new!!!"
Jane D on December 2020
Then Window Source is the perfect destination for you. We offer the highest-quality replacement windows available at factory-direct pricing. We guarantee our customers get a premium, energy-efficient product for a fraction of the cost of our competitors’ models. No need to shop at the Big Box stores ever again. That’s the Window Source advantage. Need more than just windows? We also specialize in sliding doors, patio doors, and vinyl siding. Just fill out the quick form below and we’ll have one of our friendly sales professionals contact you right away. We do not offer repair work.
"Craig the installer did a great job. I was pleasantly surprised by how sturdy the windows were - i picked window source's mid-tier level window. The day after my windows were installed the first storm of the season (snow, rain & ice) arrived and the windows completely performed as they should. I never realized what in eyesore my old windows were until i had these installed. i cant even tell how the wrapping on the windows improved the look of my house! I would definitely recommend window source & i did to a family member. Also, their quote process was quick, 1/2 hour to get a price. Window Source wasn't on my radar while i was requesting quotes on angie's list but they came up as a recommendation & i can't tell you how glad i am I hired Window Source to install all my new windows. A friend had windows installed by a popular chain & Window Source beat the quality and look hands down! If you are like me nervous about hiring a contractor you really know nothing about - i am here to tell you will be happy you hired Window Source. Thank you window source for making my 55 year old house look new!!!"
Jane D on December 2020
Complete Exterior isn’t just a contractor—we’re a community partner dedicated to enhancing the beauty and functionality of homes across Concord, NH, and beyond. With deep roots in craftsmanship spanning three generations, we pride ourselves on delivering high-quality siding, windows, doors, and more. Every project we undertake reflects our commitment to family values, honest communication, and unmatched service. At Complete Exterior, our mission is simple: to protect and enhance the homes of our New Hampshire neighbors while building lasting relationships based on trust and quality. Whether you’re looking to preserve your home’s charm or modernize its exterior, Complete Exterior is here to help. Call us at (603) 919-9155 to learn more about
"Their explanation of the work and overall communication was amazing. The work itself was done efficiently and high quality. Would definitely hire them again in the future"
Craig M on June 2024
Complete Exterior isn’t just a contractor—we’re a community partner dedicated to enhancing the beauty and functionality of homes across Concord, NH, and beyond. With deep roots in craftsmanship spanning three generations, we pride ourselves on delivering high-quality siding, windows, doors, and more. Every project we undertake reflects our commitment to family values, honest communication, and unmatched service. At Complete Exterior, our mission is simple: to protect and enhance the homes of our New Hampshire neighbors while building lasting relationships based on trust and quality. Whether you’re looking to preserve your home’s charm or modernize its exterior, Complete Exterior is here to help. Call us at (603) 919-9155 to learn more about
"Their explanation of the work and overall communication was amazing. The work itself was done efficiently and high quality. Would definitely hire them again in the future"
Craig M on June 2024
We are a small, father and son window and door company servicing NH, MA and southern ME. Available for phone calls any day and time and offering our services Monday through Saturday (phone and emails on Sundays as well). We provide high end services at affordable prices and always make sure our customers are satisfied before we leave any job. Please consider using Romeo Vanegas, LLC Custom & Replacement Windows and Doors for your next home improvement project and we look forward to hearing from you.
"He only emailed ask few questions and sent a very high estimate"
Jhony C on August 2020
We are a small, father and son window and door company servicing NH, MA and southern ME. Available for phone calls any day and time and offering our services Monday through Saturday (phone and emails on Sundays as well). We provide high end services at affordable prices and always make sure our customers are satisfied before we leave any job. Please consider using Romeo Vanegas, LLC Custom & Replacement Windows and Doors for your next home improvement project and we look forward to hearing from you.
"He only emailed ask few questions and sent a very high estimate"
Jhony C on August 2020
Hi, my name is Luke. I’ve been a handy man for around 4yrs and love what I do! I can’t wait to help you with your next project and will make sure it leaves you with a smile on your face:)
"Luke was very professional. The work on our vent went very well. He cleaned up all of the area when done. He was reasonably priced. I would definitely hire him again!"
Phil C on June 2025
Hi, my name is Luke. I’ve been a handy man for around 4yrs and love what I do! I can’t wait to help you with your next project and will make sure it leaves you with a smile on your face:)
"Luke was very professional. The work on our vent went very well. He cleaned up all of the area when done. He was reasonably priced. I would definitely hire him again!"
Phil C on June 2025
O’Sullivan Installs has built their reputation by offering quality products and focusing on communication throughout the renovation process. Specializing in windows, siding and doors. We offer a wide range of industry recognized products and award winning installation, all at surprisingly reasonable pricing. At O’Sullivan installs we don’t dictate how your home improvement will go, we work with you to plan the best options and scheduling to work within your family life and budget.
"O' Sullivan Installs did a fantastic job residing my whole house and installing two new doors. The crew was great, always cleaned up before the end of the day. My house went from an eyesore to the best looking on the block. Would definitely recommend."
Jeffrey B on November 2020
O’Sullivan Installs has built their reputation by offering quality products and focusing on communication throughout the renovation process. Specializing in windows, siding and doors. We offer a wide range of industry recognized products and award winning installation, all at surprisingly reasonable pricing. At O’Sullivan installs we don’t dictate how your home improvement will go, we work with you to plan the best options and scheduling to work within your family life and budget.
"O' Sullivan Installs did a fantastic job residing my whole house and installing two new doors. The crew was great, always cleaned up before the end of the day. My house went from an eyesore to the best looking on the block. Would definitely recommend."
Jeffrey B on November 2020
Welcome to Precision Door & Window Inc., where you receive top-quality service, products, and selection. At Precision Door & Window Inc., we believe that quality products and services encourage long-lasting business relationships. We have been serving the public since 1961. Precision Door & Window Inc. is pround to offer products that are Energy Star Rated. EMAIL SALES@PRECISIONDOORANDWINDOW.COM
"The door was installed. During the installation, the contractors broke the drywall around the frame and left it as is. In addition, the strike plate was off so the door wouldnt lock efficiently. It all seemed sloppy and rushed. They did come back and adjust the plate but claimed the holes in the drywall are just part of the door replacement and they would not address. They pointed me to the contract section that references wall paint may be scuffed during installation. I can expect that but I don't see how a respectable contractor walks away from a job leaving holes in the drywall due to their installation. Very sloppy."
Brian G on April 2022
Welcome to Precision Door & Window Inc., where you receive top-quality service, products, and selection. At Precision Door & Window Inc., we believe that quality products and services encourage long-lasting business relationships. We have been serving the public since 1961. Precision Door & Window Inc. is pround to offer products that are Energy Star Rated. EMAIL SALES@PRECISIONDOORANDWINDOW.COM
"The door was installed. During the installation, the contractors broke the drywall around the frame and left it as is. In addition, the strike plate was off so the door wouldnt lock efficiently. It all seemed sloppy and rushed. They did come back and adjust the plate but claimed the holes in the drywall are just part of the door replacement and they would not address. They pointed me to the contract section that references wall paint may be scuffed during installation. I can expect that but I don't see how a respectable contractor walks away from a job leaving holes in the drywall due to their installation. Very sloppy."
Brian G on April 2022
We offer a 10% labor discount for new customers, plus for senior citizens and military veterans at all times. Although our work schedule is Monday thru Friday 7:00am to 3:00pm, we offer 24hr emergency service and free estimates at any time. Our quotes are locked in prices, but if we complete the work in less time, the cost of the work becomes less.
"We had mold that another company removed. Todd and Dave at Booth Home repair were very professional during the estimate phase and pointed out a few areas the other three contractors did not see. They were punctual, friendly and had a reasonable quote. They started when they said they would, and treated our house as if it were their own. We are more than pleased with their finished work and would recommend them highly."
Fred E on October 2024
We offer a 10% labor discount for new customers, plus for senior citizens and military veterans at all times. Although our work schedule is Monday thru Friday 7:00am to 3:00pm, we offer 24hr emergency service and free estimates at any time. Our quotes are locked in prices, but if we complete the work in less time, the cost of the work becomes less.
"We had mold that another company removed. Todd and Dave at Booth Home repair were very professional during the estimate phase and pointed out a few areas the other three contractors did not see. They were punctual, friendly and had a reasonable quote. They started when they said they would, and treated our house as if it were their own. We are more than pleased with their finished work and would recommend them highly."
Fred E on October 2024
** Angie's List Super Service award winner in Insulation for 2008,2009,2010,2011,2013,2014,2015,2016,2017,2018,2019,2020,2021 and 2022**Calnan's Energy Systems Inc. has been in business for 40 continuous years and has more than 10,000 completed projects. Specializing in Energy Saving Insulation, Window and Door Installations! We have evolved from a multiple crew to a one crew company. This reduction in size has allowed us to deliver the high level of service our customers have come to expect. Direct supervision by the owner on each and every project, as well as family members involved can eliminate the concern of "Who will be working in my house?" Cost is determined by the job and all estimating is performed by the owner. No travel charges. We are proudly not a Mass Save contractor.
"Calnan Energy promptly gave me an estimate to replace our damaged bulkhead. They were professional, punctual and very patient explaining the process. Very quick response getting the estimate and getting my job done. It's a family owned and run company - could not have been any nicer and did a meticulous job installing my new bulkhead. The price was very competitive."
Karen M on February 2024
** Angie's List Super Service award winner in Insulation for 2008,2009,2010,2011,2013,2014,2015,2016,2017,2018,2019,2020,2021 and 2022**Calnan's Energy Systems Inc. has been in business for 40 continuous years and has more than 10,000 completed projects. Specializing in Energy Saving Insulation, Window and Door Installations! We have evolved from a multiple crew to a one crew company. This reduction in size has allowed us to deliver the high level of service our customers have come to expect. Direct supervision by the owner on each and every project, as well as family members involved can eliminate the concern of "Who will be working in my house?" Cost is determined by the job and all estimating is performed by the owner. No travel charges. We are proudly not a Mass Save contractor.
"Calnan Energy promptly gave me an estimate to replace our damaged bulkhead. They were professional, punctual and very patient explaining the process. Very quick response getting the estimate and getting my job done. It's a family owned and run company - could not have been any nicer and did a meticulous job installing my new bulkhead. The price was very competitive."
Karen M on February 2024
Welcome to Mr. Handyman of Central MetroWest where professional, safe, reliable handyman service for your entire "To Do" list is just one call away. That's why local residents choose our professional handymen, who specialize in all major and minor home repairs over an independent handyman. Additional DBAs - AA Mr Handyman, Mr Handyman, Handyman Enterprises Inc. Additional email - mrhandymancm@gmail.com. Subs used for plumbing, electrical, heating & air conditioning.
"I have used Mr. Handyman three times so far and will definitely use them again. It's been a joy to have a qualified person in my home who can take care of all the things on my TBD list, be they large or small, in a positive and professional manner. I think I had 9 things on my list the first time they came out, and everything was taken care of that same day. They are competent, focused, and there to help. Prompt, dedicated, great communication, and all the tools and supplies to get the job done. I felt their prices were reasonable, especially as the work was completely done when they left - no punch list, no coming back another day to finish. Cleaned up really well, too. I'm 100% satisfied."
Katie L on November 2024
Welcome to Mr. Handyman of Central MetroWest where professional, safe, reliable handyman service for your entire "To Do" list is just one call away. That's why local residents choose our professional handymen, who specialize in all major and minor home repairs over an independent handyman. Additional DBAs - AA Mr Handyman, Mr Handyman, Handyman Enterprises Inc. Additional email - mrhandymancm@gmail.com. Subs used for plumbing, electrical, heating & air conditioning.
"I have used Mr. Handyman three times so far and will definitely use them again. It's been a joy to have a qualified person in my home who can take care of all the things on my TBD list, be they large or small, in a positive and professional manner. I think I had 9 things on my list the first time they came out, and everything was taken care of that same day. They are competent, focused, and there to help. Prompt, dedicated, great communication, and all the tools and supplies to get the job done. I felt their prices were reasonable, especially as the work was completely done when they left - no punch list, no coming back another day to finish. Cleaned up really well, too. I'm 100% satisfied."
Katie L on November 2024
FAQs for new windows service projects in Concord, NH
Making an existing window bigger always requires some construction, but the extent varies by project. Vertical expansions involve less structural work because they often don't affect load-bearing elements. Even so, any enlargement requires removing siding or drywall, cutting framing members, and installing appropriate support. Non-load-bearing walls allow for simpler modifications, while load-bearing walls require proper headers and structural support. A consultation with a structural engineer is advisable before beginning any window enlargement project.
Building permits are required for window enlargement projects in most municipalities. Since enlarging windows involves structural modifications to your home's exterior walls, local building departments need to review and approve the plans. Permit costs range from $100 to $300, though projects requiring significant structural changes may incur permit fees of $500 or more. Additionally, homes in historic districts or those governed by HOAs may need special approvals. Always check local requirements before beginning work.
An average window enlargement project takes between five hours and three days to complete. Simple projects with minimal structural changes might be finished in five to ten hours, while more complex enlargements requiring significant structural modifications could take up to three days. Factors affecting the timeline include the window's location, wall construction, weather conditions, and the need for specialized materials. The process involves demolition, framing, window installation, and interior/exterior finishing work.
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