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TRUSTED BY GRANTHAM, NH HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon44
    Verified window and door contracting services reviews

Top-Rated Window and door contractors in Grantham - Updated Nov 2026

Avatar for DMM Siding, Roofing, Etc.
DMM Siding, Roofing, Etc.
5.0(
24
)
New Windows - 3-5Doors (Interior) - Install or ReplaceNew Window - Single+2 more

Serving Grantham, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"Devon is, simply put, an incredible contractor. Having dealt with many others in the past, I was pleasantly surprised by Devon's unwavering efforts to keep me apprised of every step of the siding/trim job. He went above and beyond my expectations, even taking the time to update me with pictures and videos to show the project's progress. Devon is a rare gem in this industry; he is extremely responsive, diligent, timely and talented — and not to mention, a very kind and friendly person. Any questions I had were answered right away and he always made sure to run next steps by me before proceeding. I cannot recommend DMM enough. He will blow you away with the beautiful quality of his work, attention to detail, and the dedication he puts into his craft. It's not just another gig to him — he truly cares about making your vision come to life. One of the best decisions I made for my new house. Thank you DMM!"
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+8

Response time1 day
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for All Work Construction INC.
All Work Construction INC.
4.7(
25
)
New Windows - 3-5New Windows - 6 +

Serving Grantham, NH and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

All Work Construction is proudly the #1 Home Improvement Company for Hooksett NH and beyond. We specialize in bathroom remodeling, kitchen remodeling, exteriors such as vinyl siding, shingle roof replacement, replacement windows, and exterior doors. Contact us today to request our home remodeling services. We offer free estimate consultations! (We serve NH, Northern MA, and partial ME)

Tile
Shower Stall
Tubs
Shower-Tub Combo
Tile

+15

Response time1 day
Response rate100%
Recommended by91%of homeowners
DaBella - Salem (Windows)
4.0(
259
)
New Windows - 6 +New Windows - 3-5

Serving Grantham, NH and surrounding areas

Approved (Corporate)

In business since 2011

Free estimates

Credit card accepted

"James C was very professional in explaining his window product and we were very happy to move forward with Dabella to get our windows upgraded. Now the work has been done we are incredibly pleased with the result and the look of our new windows"
1 neighbors recently requested a quote
Recommended by84%of homeowners
West Shore Home North Boston
5.0(
2
)
Doors (Exterior) - Install or ReplaceSliding Door - Install

Serving Grantham, NH and surrounding areas

Approved (Corporate)

In business since 2006

Free estimates

Credit card accepted

West Shore Home offers a risk-free home improvement experience, so you never have to worry that you are sacrificing on quality, convenience, or expertise. We specialize in window, entry door, shower and bath replacements, including walk-in tubs. We offer fully customizable, limited lifetime-guaranteed solutions installed in as little as one-day. All of our installers are in-house employees, so we can guarantee the quality of the whole project from start to finish. We get it done the way you want - fast, easy, smart and right. \n

88 neighbors recently requested a quote
Avatar for Barton's Perfection +, LLC
Barton's Perfection +, LLC
3.4(
7
)
Doors (Exterior) - Install or ReplaceDoors (Interior) - Install or ReplaceDoors - Repair

Serving Grantham, NH and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"I hired Cody for so many projects! He painted my roof, the outside of my house, detailed work inside. He re-glazed my windows, sanded and painted my ceilings, repainted my radiators, and more. His work is perfect and detailed oriented. He also staged my house painting over the course of the summer in order to make it easy for me to pay for it. Cody is also extremely polite and pleasant to be around. I highly recommend him."
Before.
After.
Before.
Before.
After.

+77

Response time5 hrs
Recommended by80%of homeowners
Avatar for Long Home
Long Home
New to Angi
New Windows - 6 +

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!

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Window Door Contractors FAQs, answered by experts

Ensures proper fit and function, maximizing insect protection and airflow.

Professionals clean window screens the same way a homeowner can—by removing the screens and cleaning them with a sponge. A window cleaning pro may come with better equipment, like a high powered wet/dry vacuum or pressure washer to speed up the process and achieve a deeper clean.

To ensure the longevity and smooth functioning of new windows, regular maintenance is essential. This includes cleaning the glass and frames, inspecting seals for leaks or damage, and reapplying caulking as needed. It is also important to lubricate all moving parts and operating mechanisms to ensure they continue to operate smoothly.

Common problems include leaks, broken glass, and damaged frames. Regular maintenance prevents extensive damage.

Yes, if you have ventilated skylights, you can install insect screens on them. Insect screens for skylights cost $10 to $50 each, depending on their size and quality. Most pros highly recommend insect screens for ventilated skylights because they keep pests outside of your home while allowing fresh air inside.

The Grantham, NH homeowners’ guide to window and door contracting services

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