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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon53
    Verified insulation services reviews

Verified Reviews for Insulation Service pros in New Castle, NH

*The Angi rating for Insulation Service companies in New Castle, NH 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 New Castle, NH 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 October 27, 2025

Find Insulation pros in New Castle

Avatar for Insul-Kings

Insul-Kings

50 Boston Rd
4.21(
34
)
•Approved Pro

Insul-Kings

50 Boston Rd
4.21(
34
)
•Approved Pro
Customers say: Terrific value
189 local quotes requested
26 years of experience

Insul Kings is a fully licensed and insured weatherization contractor specializing in weatherization work (adding insulation to home), energy audits, whole house air-sealing, and the installation of various types of insulation for both commercial and residential projects. We are a proud partner of Mass Save & NH Save and are rated in the top 5% of their contractor scoring.

"These guys are excellent! From Ken, whom performed the estimate, to Jeremiah and Chaz setting appointment to Dave and his partner.. I'm sorry I forgot your name. All very professional and accommodating... Dave explained what he was doing and why. Made me very comfortable with his experience and confidence in his work. I would DEFINITELY recommend Insul-Kings to anyone needing blown insulation."

Timothy C on January 2025

Insul Kings is a fully licensed and insured weatherization contractor specializing in weatherization work (adding insulation to home), energy audits, whole house air-sealing, and the installation of various types of insulation for both commercial and residential projects. We are a proud partner of Mass Save & NH Save and are rated in the top 5% of their contractor scoring.

"These guys are excellent! From Ken, whom performed the estimate, to Jeremiah and Chaz setting appointment to Dave and his partner.. I'm sorry I forgot your name. All very professional and accommodating... Dave explained what he was doing and why. Made me very comfortable with his experience and confidence in his work. I would DEFINITELY recommend Insul-Kings to anyone needing blown insulation."

Timothy C on January 2025

Avatar for Ambient Insulations LLC

Ambient Insulations LLC

Lovering Road
No reviews yet

Ambient Insulations LLC

Lovering Road
No reviews yet

Hello! I'm Mike Paradis, founder of Ambient Insulations. 4 years of experience with residential and commercial insulation.

Hello! I'm Mike Paradis, founder of Ambient Insulations. 4 years of experience with residential and commercial insulation.

Up-Model

1 Half Moon Ln
No reviews yet

Up-Model

1 Half Moon Ln
No reviews yet
Free onsite estimate

From mnimalist modern to custom rustic, Up-Model has been not just remodeling homes but upgrading spaces with an emphasis on the technology we love and need from New Hampshire to western Maine for over ten years.

From mnimalist modern to custom rustic, Up-Model has been not just remodeling homes but upgrading spaces with an emphasis on the technology we love and need from New Hampshire to western Maine for over ten years.

Avatar for 603 Basement Solutions

603 Basement Solutions

5.00(
4
)

603 Basement Solutions

5.00(
4
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

With over 31 years of experience 603 Basement Solutions specializes in Basement Waterproofing, Crawlspace Moisture control, and Concrete foundation repair. When you hire 603 you can expect Courtesy, Professionalism, Honesty, Integrity and a whole team showing up with smiles. We can't wait to solve your problems.

"When looking at different companies to waterproof my basement prior to finishing it 603 was leaps and bounds better than the rest.  These guys know their stuff, couldnt be happier with my choice!"

Chris M on November 2022

With over 31 years of experience 603 Basement Solutions specializes in Basement Waterproofing, Crawlspace Moisture control, and Concrete foundation repair. When you hire 603 you can expect Courtesy, Professionalism, Honesty, Integrity and a whole team showing up with smiles. We can't wait to solve your problems.

"When looking at different companies to waterproof my basement prior to finishing it 603 was leaps and bounds better than the rest.  These guys know their stuff, couldnt be happier with my choice!"

Chris M on November 2022

Avatar for Insulation Systems of Maine

Insulation Systems of Maine

953 Augusta Rd
No reviews yet

Insulation Systems of Maine

953 Augusta Rd
No reviews yet
55 years of experience

Family operated business since the 1970's. We specialize in blown-in fiberglass insulation and other insulation services. We always provide excellent customer service at a fair price.

Family operated business since the 1970's. We specialize in blown-in fiberglass insulation and other insulation services. We always provide excellent customer service at a fair price.

Griffin Home & Grounds LLC

131 Cross Mill Rd
No reviews yet

Griffin Home & Grounds LLC

131 Cross Mill Rd
No reviews yet
23 years of experience

Servicing nearly all home and property needs. Offering free consultations, evaluations, recommendations, and estimates. Fully insured and licensed. Transferable 2-year work guarantee. From fertilization to full-service tree removal, landscape design and installation, out building design and construction, and whatever your property needs may be. From sealing your basement to flooring and finish work, custom design and installation, siding, roofing, chimney and nearly anyting your home may need interior or exterior. If you don't have the time, knowledge, tools, or physical capability to get the job done, please allow me to be your handyman. No job too big or too small.

Servicing nearly all home and property needs. Offering free consultations, evaluations, recommendations, and estimates. Fully insured and licensed. Transferable 2-year work guarantee. From fertilization to full-service tree removal, landscape design and installation, out building design and construction, and whatever your property needs may be. From sealing your basement to flooring and finish work, custom design and installation, siding, roofing, chimney and nearly anyting your home may need interior or exterior. If you don't have the time, knowledge, tools, or physical capability to get the job done, please allow me to be your handyman. No job too big or too small.

Candido Services LLC

103 Ward St
No reviews yet

Candido Services LLC

103 Ward St
No reviews yet
Free onsite estimate

Our mission is to provide our clients with quality craftsmanship at an equitable price, through a team of highly skilled and trained professionals using safe and innovative techniques. While supplying our employee owners with the knowledge and resources necessary for their success.

Our mission is to provide our clients with quality craftsmanship at an equitable price, through a team of highly skilled and trained professionals using safe and innovative techniques. While supplying our employee owners with the knowledge and resources necessary for their success.

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Insulation questions, answered by experts

A DIY blown-in insulation project in a typical attic should take you no more than a week to complete. Experienced homeowners can blow an entire attic in one or two days.

Insulating ducts prevent or significantly reduce condensation by reducing temperature differences between the duct surface and surrounding air. Proper insulation also minimizes sweating, improves energy efficiency, and prevents moisture damage. However, if humidity levels are unusually high or there are air leaks, additional measures like sealing ducts and using a dehumidifier may be needed.

If you’re moving wires, installing new wires, or installing new fixtures in the space you’re insulating, then you will need to hire a licensed electrician to do that portion of the job for you. However, if you just intend on replacing old insulation or adding new insulation over existing insulation, then you don’t need to hire one. Your insulation installer will work around wiring, fixtures, outlets, and switches, even if they’re installing fiberglass batts in the voids where wires run. However, you will need an electrician if you suspect a problem with your wiring during the insulation work.

There are two reasons why cellulose insulation repels rodents (and insects). First, the insulation has been treated with boric acid, which is a natural pest-repellent. In addition, the loose-fill style of cellulose creates less-than-ideal conditions for mice and other rodents to nest and burrow, helping to keep them at bay.

Yes. Proper, complete insulation will ensure that you trap the most cool or warm air inside your home, preventing high energy bills. In addition, insulation tends to settle and compress, leaving gaps over time; the more you insulate completely during the initial installation, the less you’ll need to do down the line.

The New Castle, NH 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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