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4.8

(36 reviews)

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Verified Reviews for Insulation Service pros in Princeton, NC

*The Angi rating for Insulation Service companies in Princeton, NC is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.

*The HomeAdvisor rating for Insulation Service companies in Princeton, NC is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.

Last update on February 09, 2026

Find Insulation pros in Princeton

M.D. Insulation, LLC
4.7(
33
)

Serving Princeton, NC and surrounding areas

Approved

In business since 2018

Free estimates

Small jobs welcome

"If you need insulation, this is the group to hire. They did a great job in a very timely manner, cleaned better than it was when they arrived and was so professional. I would and have recommended M.D. Insulation to family and friends. You will be very pleased with their work and the men. Thank you M.D.Insulation for a great job."
Response time11 hrs
Recommended by100%of homeowners
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Avatar for USA Insulation Raleigh-Durham
USA Insulation Raleigh-Durham
4.9(
14
)

Serving Princeton, NC and surrounding areas

Approved

In business since 1985

Free estimates

Warranties offered

"Very Professional job. Adding insulation to the walls of our home has dropped our energy bills. Would absolutely tell somebody else to have this done especially if you have an older home."
USA Insulation Raleigh-Durham
Response time1 day
13 neighbors recently requested a quote
Recommended by57%of homeowners
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Avatar for Evergreen Foam and Insulation
Evergreen Foam and Insulation
5.0(
2
)

Serving Princeton, NC and surrounding areas

Approved

In business since 2007

Free estimates

Warranties offered

"Evergreen was great from start to finish! The salesman, Chris, was super helpful in answering questions and the install crew was on time, efficient, and cleaned up after themselves. Highly recommend to anyone needing spray foam or any other type of insulation."
Cathedral Dome
Dome Walls
Attic Space
Bedroom Dormer
Bedroom 1

+8

Response time2 days
24 neighbors recently requested a quote
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Avatar for Solution Zero LLC
Solution Zero LLC
5.0(
4
)

Serving Princeton, NC and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"Solution Zero was exceptionally professional and punctual. Their crew worked efficiently, maintained a clean workspace, and was consistently courteous throughout the process. I would highly recommend them to friends and family for any insulation needs."
New build open cell
New build open cell
New build open cell
Metal Building
Metal Building

+1

Response time2 days
9 neighbors recently requested a quote
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Avatar for Martin Crawlspace & Attic Solutions LLC
Martin Crawlspace & Attic Solutions LLC
5.0(
4
)

Serving Princeton, NC and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Charles was awesome all around!! Came out for an inspection, advised me of issues and the route I should take. We followed through and couldn’t be happier with the results, and how easy the process was. We got a full encapsulation with a dehumidifier and the difference in the air is amazing. Highly recommend if you are thinking about getting your crawlspace encapsulated!"
Crawlspace Encapsulation
Crawlspace Encapsulation
Crawlspace
1 neighbors recently requested a quote
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B & C Insulation
3.3(
2
)

Serving Princeton, NC and surrounding areas

Approved

In business since 2021

Free estimates

Small jobs welcome

company name-------is committed to excellence every aspect of our business.\nWe uphold a standard of integrity bound by fairness, honesty and responsibility\nin all of our jobs. We are a locally owned and operated business with more\nthan 1 year of experience serving --city state--- and surrounding areas. Call today\nand let us put our experience to work for you!

Response time1 day
Recommended by100%of homeowners
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Avatar for C&Z Restoration LLC
C&Z Restoration LLC
5.0(
4
)

Serving Princeton, NC and surrounding areas

Approved

In business since 2019

Free estimates

Small jobs welcome

"best service ever. Completely understanding of the very stressful situation and handled it with amazing professionalism!"
Mold Remediation
Mold Remediation
Mold Remediation
Mold Remediation
Mold Remediation

+23

Response time2 hrs
2 neighbors recently requested a quote
Recommended by100%of homeowners
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Showing 1-10 of 48
Insulation questions, answered by experts

Bathroom wall insulation not only keeps the area temperate, but it also reduces instances of mold, mildew, and rot. Bathrooms, after all, are havens for moisture. With this in mind, it’s absolutely worth it to insulate bathroom walls since it saves money in the long run. You won’t have to hire a pricey mold remediation service down the line. Also, insulation decreases outdoor noise and lowers energy costs.

On average, insulating an attic costs about $2,500, with a typical range of $1,500 to $3,500. The final price often depends on the attic's size, with costs generally falling between $1 to $3 per square foot. For example, insulating a 1,800-square-foot attic would likely cost between $1,800 and $5,400.

If the project involves removing old insulation, this can add an average of $900 to the total cost, bringing a full removal and reinsulation project to around $3,000.

Several factors influence the overall cost:

  • Insulation Type: Prices per square foot vary significantly by material.

  • Reflective: $0.50–$1.50

  • Blown-in: $1–$4

  • Batt: $2–$4

  • Loose-fill: $2–$5

  • Spray foam: $2–$5

  • Structural insulated panels (SIPs): $4–$7

  • Project Complexity: Factors like sealing air leaks, poor attic accessibility, and required inspections can add to the cost.

  • Removal Issues: The discovery of mold, asbestos, or pests during the removal of old insulation can substantially increase the price.

The heat loss through a poorly insulated attic when you’re running your furnace or heat pump during cold weather can be as high as 25%. This means you could see significantly higher energy costs to make up for this heat loss. The cost of adding insulation to the attic may eventually pay for itself through lower energy bills. If you decide to add a radiant barrier too, the radiant barrier cost may also pay for itself over time.

The life span of insulation is between 20 and 100 years. At that time, existing insulation can fall victim to gravity, resulting in compression, which reduces its insulating protection or R-value. If you can't simply add more insulation over the existing material, removing the old to increase the effectiveness of the new can reduce your energy bills and make the project worth the time and money investment.

Rockwool insulation can last up to 100 years, but just how long this insulation lasts in your home depends on how well it's maintained. Poorly installed insulation may last only 30 years, so be sure to regularly inspect your home's insulation for water damage, settling, and pests to give your insulation the best chance of having a long lifespan.

The Princeton, NC homeowners’ guide to insulation services

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

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