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Top-Rated Doors (exterior) installers and replacers in Merrimack - Updated Nov 2026

Avatar for Universal Windows Direct of Manchester
Universal Windows Direct of Manchester
4.7(
78
)
Doors (Exterior) - Install or Replace

Serving Merrimack, NH and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"We had a top to bottom, excellent experience with the local team from Universal. My wife and I had an in-home consultation, a measurement and the install completed in a little over a months time. As stated in a prior review, the cost is reflected in the quality of the workmanship. Our family could not be happier with our experience. Big thanks to Kyle, Ron, Mike and Dennis for the top-notch service. I can wholeheartedly recommend Universal Windows Direct to any homeowner in need of a new door, installed quickly and by a friendly, knowledgeable and friendly staff. Thank you again!"
Transform Your Home with Our Expert Renovation Services!
Transform Your Home with Our Expert Renovation Services!
Additional Photos
Harbor Blue Siding
Additional Photos

+86

Response time8 hrs
Response rate100%
13 neighbors recently requested a quote
Torin Soares Contracting
5.0(
14
)
Doors (Exterior) - Install or Replace

Serving Merrimack, NH and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"Having lived in our house for 32 years, we needed a lot of work done before putting it on the market. Torin was a consummate professional from start to finish. He was responsive and flexible. He and his crew painted all the rooms on our first and second floors; replaced toilets, windows, doors, railings, and light fixtures; refinished tubs; repaired siding damage, fascia boards, rot, and ceiling damage; installed insulation; and did additional work to the interior and exterior of our garage. He brought in electricians and plumbers as needed. Torin completed all work in a timely manner, and we always knew where we were in the process. I could not recommend him more highly!"
Response time3 days
1 neighbors recently requested a quote
Recommended by23%of homeowners
Avatar for Green Shed Renovations
Green Shed Renovations
4.8(
50
)
Doors (Exterior) - Install or Replace

Serving Merrimack, NH and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"we want to have a sliding door removed in our mud room and filled in, josh did a wonderful job on it. He is a genuinely nice person and took time to talk to us. i definitely would hire him for future projects"
OUR WORK
OUR WORK
OUR WORK
OUR WORK
OUR WORK

+28

Response time5 hrs
Recommended by97%of homeowners
Avatar for Hi Tech Window and Siding Installations, Inc.
Hi Tech Window and Siding Installations, Inc.
3.7(
159
)
Doors (Exterior) - Install or Replace

Serving Merrimack, NH and surrounding areas

Approved

In business since 1995

Free estimates

Offers commercial services

"I have hired Hi Tech Window and Siding over the years to install windows throughout my house, install siding on my house, as well as entry doors and a sliding door that opens to a beautiful deck which they also installed. Needless to say, my wife and I highly recommend Hi Tech. The professionalism exhibited by Hi Tech is second to none. They use quality products, employ knowledgeable, professional craftsmen and most importantly stand behind every installation 100%. I am proud to recommend Hi Tech Window and Siding to everyone who is looking for a quality contractor. There is no better."
Siding
Siding
Siding
Siding
Sunrise Windows

+4

Response time3 hrs
Recommended by70%of homeowners
Avatar for Green Nature Homes
Green Nature Homes
5.0(
22
)
Doors (Exterior) - Install or Replace

Serving Merrimack, NH and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"I had my existing wood cabinets restrained. I did not want them replaced or refaced which most companies want to do and they did exactly what I wanted and in a timely fashion. The workers that performed the work were friendly and professional and my cabinets look great. Thank you Amie, Mike and ,Pedro"
Master Bath
Main floor bathroom
Main floor bathroom
Small space but still one of my favorites
Drywall for addition

+9

Response time2 days
Response rate93%
2 neighbors recently requested a quote
Avatar for Shoreline Woodcraft, LLC
Shoreline Woodcraft, LLC
5.0(
11
)
Doors (Exterior) - Install or Replace

Serving Merrimack, NH and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"We decided to finish our Basement. We went through several recommendations and decided on Shoreline Woodcraft. We are so glad we did. Conlan and Pete were dedicated hard workers. Any questions we had, Conlan answered. They are very affordable and cleaned up after each day !! I would highly recommend Conlan for any job small or large. Thank you for my new Man Cave!"
Before
Before
Transformation
Took it down to the studs
Tile floor and shiplap walls

+51

Response time2 days
Recommended by81%of homeowners
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Showing 1-10 of 236
FAQs for doors (exterior) installation and replacement projects in Merrimack, NH

If your entry bakes in direct sun, fiberglass is the clear winner. The material shrugs off extreme heat, stays energy-efficient, and won’t warp or fade the way wood sometimes can. Paired with low-E or UV-blocking glass, a quality fiberglass door keeps hot air out, cool air in, and should serve you reliably for roughly two decades.

A seasoned door pro can hang a replacement door in two to four hours—mounting the slab, tweaking the fit, and adding hinges, knobs, and weatherstripping. If the jamb needs repairs or you’re cutting a brand-new opening, plan on extra time so everything lines up and seals tightly. Either way, most projects wrap up in a single afternoon.

The Merrimack, NH homeowners’ guide to doors (exterior) installations and replacements

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