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Customers consistently praised the professionalism and quality of installation, particularly highlighting the work of installer Eddie.
Customer Service
While many reviews noted excellent customer service, there were also complaints about poor communication and warranty issues.
Product Satisfaction
Overall, customers expressed satisfaction with the quality of the windows and doors, appreciating their aesthetics and functionality.
Sales Experience
Sales representatives, especially Trevor and Ethan, received positive feedback for their professionalism, knowledge, and no-pressure sales approach.
Timeliness
Several customers mentioned delays in installation and product delivery, indicating a need for improvement in scheduling.
KB
Katherine Bassett
Oct 23, 2025
5.0
Very professional installation. These guys were absolutely great at what they do! Thanks again!!
DB
Donald Boisvert
Sep 19, 2025
5.0
After comparing a new front door and slider through several other places, I concluded that the products at Window World were the best value for the cost and installation. The work done by both Eddie & Wes was perfect and the attention given to not making a mess, was superior. I wholeheartedly endorse Window World of NH for their great products and capable service.
SG
Steve Gabry
Aug 27, 2025
5.0
This was not a easy or quick install. Replaced 2 windows on the 3rd floor. Original windows were new install so alot of work needed to be done from outside. Perfect install, with all trim in and out. I had Window World replace over 30 windows several years ago, and that went perfect also. Highly recommend. Thanks Eddie, your the best.
EE
Edward
Aug 24, 2025
5.0
I am extremely satisfied with the work that Window World did on my home. The siding crew were prompt, professional and very meticulous. Eddie did a great job installing all of my windows and the sliders. Eddie is very professional and is a talented craftsman. I will use Window World of NH for my next project.
MT
Mark Tor64
Aug 19, 2025
5.0
Ethan came out and gave us a very good detailed showing of window world's windows. Ethan was extremely polite and knowledgable about the windows . We chose to go with another company but wanted to acknowledge Ethan as a good sales person.
Frequently Asked Questions About Window World of New Hampshire
What types of Payment methods & Financing do you offer?
We offer a variety of payment methods and financing options (subject to approved credit) depending on promotional period. Please contact us for more information regarding available options.
Will the replacement windows be installed from the inside or outside?
The majority of our replacement windows are installed from the outside. In some situations, it may be necessary to install from the inside. On the day of installation, your installation expert will assess your unique situation and explain the process that will best suit your home.
Do you install replacement windows year-round? If so, will I lose a lot of heat/cooling at the time of installation?
Window World installs replacement windows year-round. An average installation will take only one day. Our crews install one window at a time and are trained to do what they can to minimize heating/cooling loss. The energy savings from your new windows will recover any incremental energy costs incurred during their installation many times over during their lifetime.
How can I prepare my house for my replacement windows?
Please take down curtains, blinds, or any other window treatments. Security sensors should also be removed and turned off by your security company. Please provide our installation expert with a clear path to the window(s) being replaced by moving anything that may be in the way. It is also advisable to remove all wall decorations from the walls close to the windows as they may fall during removal or installation.
How long will it take to get my replacement windows? How much time should I allow for the installation?
Generally, replacement windows can be installed within 4-8 weeks from the date that the final measurements are taken. The type of window being installed and type being removed helps determine the amount of time needed to complete the job. On average each window takes about 30-60 minutes. Trim work and cleanup will require additional time to complete. An average job will take a single day.
What type of warranty is available for my windows?
Window World replacement windows come with an all-inclusive limited lifetime warranty. Contact us for more details.
What happens to my old windows?
After installing your new replacement windows we remove all old windows from your property and dispose of them properly. If you wish to keep your old windows or storm windows, please notify the installation crew as soon as they arrive for your installation.
What do I do if there is a problem with the windows?
Most of the issues encountered by our customers are easily corrected and don't necessarily mean that there is a problem with your window. As a first step, we recommend you visit the Support page of our website for troubleshooting tips and advice on correcting common issues.
What types of replacement windows do you offer in Concord, and are they energy efficient?
We offer a wide selection of energy-efficient replacement windows in Concord, including double-hung, casement, bay, and custom shapes. Our windows feature advanced insulation and weatherproofing to help lower your energy bills and keep your home comfortable year-round.
Why should I choose Window World of New Hampshire as the best window installation company in Concord?
We are a nationally recognized brand with local ownership, offering superior products, professional installation, and guaranteed low prices. Our experienced installers ensure quality craftsmanship, and our comprehensive warranties provide peace of mind for every project.
How long does it take to install replacement windows in my home?
Most window installations are completed within one to two days, depending on the number and type of windows. We’ll provide a detailed project timeline during your consultation to ensure you know what to expect.
Are your replacement windows custom-made for each home?
Yes, we offer custom replacement windows in Concord. Each window is measured and manufactured to fit your home’s exact specifications, ensuring a perfect fit and optimal performance.
Do you provide vinyl siding installation in Concord and surrounding areas?
Absolutely. We offer professional vinyl siding installation in Concord and throughout Belknap, Cheshire, Hillsborough, Merrimack, Rockingham, Strafford, and Windham counties. Our siding options are designed for durability, low maintenance, and enhanced curb appeal.
What entry door installation services do you offer, and can I customize my door?
We install a variety of entry doors, including front, patio, and garage doors, all built to withstand New Hampshire weather. You can personalize your door with different styles, colors, and finishes to match your home’s design.
How much do replacement windows cost in Concord, and what payment options are available?
Window replacement costs vary based on window type, size, and customization. We offer competitive pricing and financing options with approved credit, making it easier to invest in your home’s comfort and value.
What warranties or guarantees do you provide on your products and installations?
All Window World products are accompanied by comprehensive warranties, encompassing a limited lifetime warranty on windows and doors, including glass breakage. This warranty covers both materials and installation defects, ensuring peace of mind for years to come. Furthermore, our warranties are transferable should you choose to sell your home, allowing the new homeowner to benefit from the same level of protection.
What post-installation support and maintenance do you offer?
We provide ongoing support for all our products. If you have any issues after installation, our team is available to assist with repairs, adjustments, or warranty claims. We also offer guidance on maintaining your windows, siding, or doors for lasting performance.
What types of payment methods and financing options does Window World of New Hampshire offer?
We offer cash, check, and financing options subject to approved credit, with availability depending on promotional periods. Please contact us for current details.
How and where are replacement windows installed at my home?
Most replacement windows are installed from the outside, but in some cases, installation from the inside may be necessary. Your installation expert will assess and explain the best process on the day of installation.
Does Window World of New Hampshire install replacement windows all year round? Will I lose heat or cooling during installation?
Yes, we install replacement windows year-round. Installations typically take one day with minimal heat or cooling loss, as crews install one window at a time efficiently.
How can I prepare my home for the installation of replacement windows?
Please remove curtains, blinds, and window treatments. Disable security sensors with your security company. Ensure a clear path to windows and remove any nearby wall decorations.
How long does the window replacement process take from ordering to installation?
Typically, windows are installed within 4-8 weeks after final measurements. Installation generally takes one day, with each window taking 30-60 minutes plus trim and cleanup.
What warranties does Window World of New Hampshire provide on their windows and installations?
Our replacement windows come with an all-inclusive limited lifetime warranty covering materials and installation defects, including glass breakage, and are transferable upon home sale.
What should I expect regarding post-installation support and maintenance?
We offer ongoing support for all products, including assistance with repairs, adjustments, warranty claims, and maintenance guidance for windows, siding, and doors.
What types of energy-efficient windows are offered in Concord?
We provide various energy-efficient replacement windows in Concord, such as double-hung, casement, bay, and custom shapes, featuring advanced insulation and weatherproofing.
Can you tell me about nearby places that could be useful when visiting Window World of New Hampshire?
Nearby businesses like Secondwind Water Systems, Inc. and Engel HVAC Supply can assist with plumbing and HVAC needs. Building supply stores like A.H. Harris and HD Supply A.H. Harris are convenient for additional home improvement materials.
What nearby dining options are available when visiting Window World of New Hampshire?
You can enjoy a meal or coffee at Fresh Picks Cafe, a nearby restaurant and cafe, which is a great spot before or after your visit.
Are there any nearby educational institutions around Window World of New Hampshire?
The Nackey S. Loeb School of Communications, a specialty college and school, is nearby and may interest visitors or those in the community.