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Find Batt, rolled or reflective insulation install or upgrade pros in Portsmouth

The Green Cocoon, LLC
4.7(
21
)

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

"The customer service was good. They showed up when they said they would, and completed the project early. However, they didn't do a great job paying attention to details when trimming the foam & cleaning up afterwards. I had to spend a few hours trimming foam they missed, so that drywall could go up without interference, and dealing with staples and foam on painted walls."
Response time2 days
Response rate86%
4 neighbors recently requested a quote
Avatar for Green Way Insulation, Inc.
Green Way Insulation, Inc.
4.3(
21
)

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"I highly recommend Green Way. The folks from Green Way were professional and they delivered high quality work at a great price. The work involved applying foam to exposed roof deck in the attic, and applying blow-in insulation between unexposed roof deck the interior walls. I'm very pleased with the outcome."
Insulation work.
Insulation work.
Insulation work
Insulation work
Insulation work.

+9

Response time2 days
Response rate89%
41 neighbors recently requested a quote
Avatar for Edgewood Drywall Services
Edgewood Drywall Services
4.8(
39
)

Serving Portsmouth, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Credit card accepted

"We hired Roberto and his team to install drywall in our garage. The work done was great and it exceeded our expectations. As well, Roberto was very accommodating with us when we had to reschedule a start date due to issues I had getting the building inspector to sign off on my prep work. There was one minor issue that happened during the drywall install process, Roberto was able to fix the issue the same day and kept everything on track. He even helped us install a door afterwards. 10/10 would recommend Roberto and his team and will definitely be going to them in the future!"
Response time7 hrs
41 neighbors recently requested a quote
Recommended by61%of homeowners
Avatar for AJ Pro Green Insulation Corp
AJ Pro Green Insulation Corp
4.9(
6
)

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2022

Free estimates

Small jobs welcome

"We were referred to AJ Pro Green by a colleague so we had them come out for a free estimate. They showed up on time and were very professional. They insulated our basement during our remodel and we couldnâ t be happier. The job was done quickly, was within our budget, and communication was fantastic. We would highly recommended!"
Roof open cell - walls closed cell
Roof open cell - walls closed cell
Roof/Attic closed cell
Spray Foam Insulation
Spray Foam Insulation

+57

Response time2 hrs
Recommended by100%of homeowners
Avatar for ABI LLC
ABI LLC
5.0(
3
)

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"We chose ABI because we were comfortable with their assessment, quote details, and ability to answer our questions thoroughly. We went with polyiso boards and cellulose as the materials. The price was very fair. The day they did the work, with Flo and Carlos onsite and part of the crew, they were focused, professional, friendly, and careful with our home and belongings. Any hiccups along the way were problem-solved and dealt with immediately. They not only left the inside clean, vacuuming after they removed the runners they brought, but made sure to check the outside of the house and swept the driveway for any small debris. The final check included a walk around the outside of the house. We knew they had to remove the siding to drill the holes to blow in the cellulose, but you would never know that the siding had been disturbed. We would not hesitate to recommend this company to anyone else looking for a fair and honest home insulation company! "
Response time12 hrs
31 neighbors recently requested a quote
Avatar for Quality Insulation of Portsmouth
Quality Insulation of Portsmouth
5.0(
2
)

Serving Portsmouth, NH and surrounding areas

Approved (Corporate)

In business since 1975

Free estimates

Credit card accepted

"Quality Insulation of Portsmouth did two jobs for me: They added blown in insulation to my attic last fall and installed gutters plus leaf guards this spring. Both jobs were excellently done at a reasonable cost. I would certainly recommend them and will likely use them again in the future."
PHOTOS
PHOTOS
PHOTOS
PHOTOS
Response time1 day
17 neighbors recently requested a quote
Insulation Systems of ME
4.5(
2
)

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2020

Free estimates

Offers commercial services

Here at Insulation Systems of ME, I pride myself on my professionalism, as well as my ability to complete every job to the homeowner's total satisfaction. I never leave a job unfinished, or a homeowner not 100% satisfied with my level of service - Call today!

Cathederal
Dense Pack Fiberglass
Dense Pack Fiberglass
Dense Pack Fiberglass
Dense pack fiberglass

+2

Response time3 days
6 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for My Handyman of Dover Portsmouth Rochester
My Handyman of Dover Portsmouth Rochester
3.8(
35
)

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2018

Warranties offered

Small jobs welcome

"Excellent! The carpenter that did the job, Jeff, was professional. My shed needed new doors and the front panels rebuilt. Jeff did this job with care and expertise. He, also, painted the new wood. I was particularly impressed with the skill he showed when rebuilding the doors."
French Door Installation
Front Door Painting Services
Shade Installation
Garbage Disposal Installation
Toilet Installation

+47

Response time1 day
28 neighbors recently requested a quote
Recommended by71%of homeowners
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FAQs for batt, rolled or reflective insulation install or upgrade projects in Portsmouth, NH

Batt insulation excels in vertical installations because it remains firmly in place and delivers consistent thermal performance. Blown-in insulation performs exceptionally in spaces such as attics, efficiently filling gaps in irregular areas. 

Employing both insulation types according to their strengths enhances your home’s overall energy efficiency and comfort by providing a tailored solution for every space.

Start by measuring the square footage of the space, then match that area with the insulation thickness you need to hit your target R-value. Add a buffer for waste and odd-shaped spots so every cavity is covered. 

Once you have a rough count, run it past a local insulation pro—their on-site advice will fine-tune the numbers and help you avoid costly miscalculations.

Old insulation that is dry, intact, and mold-free does not require removal before adding new insulation; stacking new insulation over it maintains effective thermal performance and boosts energy efficiency. 

If the insulation is damp, moldy, or deteriorated, removal is necessary to eliminate health risks and ensure maximum effectiveness of the new layer. A professional insulation contractor will assess your situation and recommend the most effective solution.

Installing insulation in an average-sized home using batts or boards requires five to 12 hours. Using spray foam or blown-in insulation requires two to five hours. These timeframes are determined by the area’s size, accessibility, and whether old insulation must be removed. 

Complex projects and hard-to-reach spaces demand extra time. Hiring an experienced insulation professional ensures that the installation is completed efficiently and correctly.

Insulation is measured by R-value, which defines how effectively it resists heat flow. A higher R-value provides superior thermal resistance, ensuring your home remains warm in winter and cool in summer. 

Choosing the correct R-value is essential for maximizing energy efficiency and comfort, and it directly impacts long-term utility savings. Professional guidance determines the optimal R-value for your specific climate.

The Portsmouth, NH homeowners’ guide to batt, rolled or reflective insulation installs or upgrades

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