4.7 
26 *The Angi rating for Window Service companies in Grantham, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window Service needs.
*The HomeAdvisor rating for Window Service companies in Grantham, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window Service needs.
Last update on May 19, 2026
Serving Grantham, NH and surrounding areas
Approved (Corporate)
In business since 2000
Free estimates
Warranties offered
"Installed 22 new windows, 2 entry doors, and new sliding glass door. Outstanding service, price, and installation. Highly recommend."
+55
Serving Grantham, NH and surrounding areas
Approved (Corporate)
In business since 2011
Free estimates
Credit card accepted
"Nikiya came to my home to help me choose windows to replace old windows that are leaking cold air in winter. With the price of oil this year, it is worth the money to do this work. His presentation was very well done, with demonstrations that help me to choose the windows for our home. Nikiya was friendly and extremely knowledgeable about his products, and I appreciate that."
Serving Grantham, NH and surrounding areas
Approved
Super Service Award Winner
Free estimates
Emergency services offered
Small jobs welcome
"Adam, from Sidewinder, was willing to come from a relatively far distance to do this job. He was able to efficiently evaluate the problem, and hire the appropriate parts to complete the project. I found him to be knowledgeable, easy to work with, reliable, and reasonably priced."
+15
Serving Grantham, NH and surrounding areas
Approved
In business since 2004
Free estimates
Credit card accepted
"The four-man crew was very professional, and very clean and neat. They performed the work on a very timely basis and my new triple pane windows look great."
Serving Grantham, NH and surrounding areas
Approved
In business since 2023
Free estimates
Emergency services offered
"Super responsible and reliable, great lawn and snow work."
+3
Serving Grantham, NH and surrounding areas
Approved (Corporate)
In business since 1996
Free estimates
Warranties offered
"Everything completed as rescheduled after a weather delay. The crews arrived on time, did the project (2 foundation Cracks, and cleaned up"
+16
Serving Grantham, NH and surrounding areas
Approved
In business since 1989
Free estimates
Warranties offered
"HAD egress window installed, excellent quality work at a fair price on schedule. Very professional."
+3
Serving Grantham, NH and surrounding areas
Approved
In business since 1999
Free estimates
Credit card accepted
We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We are experts in all aspects of window projects and specialize in multiple window instillation for residential homes. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!
Serving Grantham, NH and surrounding areas
Approved
Small jobs welcome
I'm currently looking for some fill in work for this winter. I'm a very capable carpenter/painter. I have full time work Monday through Friday, but have some availability on weekends.
+2
Serving Grantham, NH and surrounding areas
Approved
Free estimates
Small jobs welcome
"Adam and his team did an amazing job on completing a backyard fence for my family. He was hardworking and detailed with the work. Kept me updated through every step of the way from the permit process, ordering materials and check-ins as the build was happening. Our fence is great! He also completed a custom railing and gate to attach to our existing deck. Will definitely be using we do it all again for future projects."
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