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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon25
    Verified insulation services reviews

Verified Reviews for Insulation Service pros in Flagstaff, AZ

*The Angi rating for Insulation Service companies in Flagstaff, AZ 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 Flagstaff, AZ 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 January 02, 2026

Find Insulation pros in Flagstaff

Avatar for Guardian Protection

Guardian Protection

4.74(
2,120
)

Guardian Protection

4.74(
2,120
)
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

Protecting homes and businesses since 1950, Guardian Protection is one of the nation's largest and most highly regarded security companies. We provide smart technology, 24/7 professional monitoring, and peace of mind to hundreds of thousands of customers. Our products are installed by experts, monitored by real people, and truly make a difference. We do what we do because of one simple truth: life is better when it's safe.

"We hired Guardian to install our security system at our Washington, DC, business. The service and quality of the work was horrible. We had cameras and an alarm system installed; it was a relatively large system. They outsource most of the work to various vendors. They could not manage their vendors; what was supposed to take a week took two months. The sales rep did not return calls, and you could never get anyone in management on the phone. Random people would show up at unannounced times. The few things that an actual Guardian employee did were they made a huge mess of our newly remodeled office and were rude to our staff. We have offices in five markets across the US and have high security at each; we have never had such a poor experience."

William M on December 2024

Protecting homes and businesses since 1950, Guardian Protection is one of the nation's largest and most highly regarded security companies. We provide smart technology, 24/7 professional monitoring, and peace of mind to hundreds of thousands of customers. Our products are installed by experts, monitored by real people, and truly make a difference. We do what we do because of one simple truth: life is better when it's safe.

"We hired Guardian to install our security system at our Washington, DC, business. The service and quality of the work was horrible. We had cameras and an alarm system installed; it was a relatively large system. They outsource most of the work to various vendors. They could not manage their vendors; what was supposed to take a week took two months. The sales rep did not return calls, and you could never get anyone in management on the phone. Random people would show up at unannounced times. The few things that an actual Guardian employee did were they made a huge mess of our newly remodeled office and were rude to our staff. We have offices in five markets across the US and have high security at each; we have never had such a poor experience."

William M on December 2024

Avatar for Advantage Home Performance Inc

Advantage Home Performance Inc

4.97(
29
)

Advantage Home Performance Inc

4.97(
29
)
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

Advantage Home Performance, formerly Advanced Insulation, was opened in 1997 by Mike Uniacke. Over the years the team at Advantage Home Performance kept adding services in order to better serve our customers. We recently changed the company’s name to Advantage Home Performance to reflect the fact that our focus is not simply on insulation, but on bringing our customers integrated solutions to solve problems. Our values, mission and high level commitment have not changed, just our name and our offer. We are Licensed and Insured, in good standing with the ROC #274862 and Better Business Bureau. Our service areas include the Valley Metro area and Norther Arizona. Additional Phone number - (888) 445-3866 & (928) 445-3828, 623-939-3329 & Additional email - [email protected].

"Very Well! The guys were very professional and good at what they were doing. They covered every detail and completed the work in a timely fashion. I was very satisfied!"

Terry F on July 2020

Advantage Home Performance, formerly Advanced Insulation, was opened in 1997 by Mike Uniacke. Over the years the team at Advantage Home Performance kept adding services in order to better serve our customers. We recently changed the company’s name to Advantage Home Performance to reflect the fact that our focus is not simply on insulation, but on bringing our customers integrated solutions to solve problems. Our values, mission and high level commitment have not changed, just our name and our offer. We are Licensed and Insured, in good standing with the ROC #274862 and Better Business Bureau. Our service areas include the Valley Metro area and Norther Arizona. Additional Phone number - (888) 445-3866 & (928) 445-3828, 623-939-3329 & Additional email - [email protected].

"Very Well! The guys were very professional and good at what they were doing. They covered every detail and completed the work in a timely fashion. I was very satisfied!"

Terry F on July 2020

Avatar for Phelps Precision Innovations LLC

Phelps Precision Innovations LLC

5.00(
22
)

Phelps Precision Innovations LLC

5.00(
22
)
Customers say: Quick response
6 years of experience

Phelps Precision Innovations LLC is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"Did a whole addition to the living space/dining. Plumbing, demo, electrical. To the roofing and drywall. "

DARLENE T on August 2025

Phelps Precision Innovations LLC is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"Did a whole addition to the living space/dining. Plumbing, demo, electrical. To the roofing and drywall. "

DARLENE T on August 2025

Avatar for JDS Improvements

JDS Improvements

4.80(
97
)

JDS Improvements

4.80(
97
)
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers

Backed by over 20 years of experience, we are a general contractor, that can assist in every aspect of a home project. Customer Satisfaction is very important to us and what we pride ourselves on. We go out of our way to see the the customer is taken care of. From remodeling, to painting, to flooring and decks, we can help every step of the way. Owner ran and operated. Give us a call today!

"We have used John and his crew for years from large roofing projects to small cabinet modifications. We have always found them to be honest and fair. Would highly recommend them!"

Audra S on August 2025

Backed by over 20 years of experience, we are a general contractor, that can assist in every aspect of a home project. Customer Satisfaction is very important to us and what we pride ourselves on. We go out of our way to see the the customer is taken care of. From remodeling, to painting, to flooring and decks, we can help every step of the way. Owner ran and operated. Give us a call today!

"We have used John and his crew for years from large roofing projects to small cabinet modifications. We have always found them to be honest and fair. Would highly recommend them!"

Audra S on August 2025

Avatar for Silver City Restoration

Silver City Restoration

4.59(
17
)

Silver City Restoration

4.59(
17
)
Customers say: Quality work
21 years of experience

Full service restoration company. Preferred contractor on most insurance companies. Silver City Restoration provides an exceptionally positive post-disaster reconstruction experience. This is accomplished by establishing a strong client-focused relationship; delivering contracting services that combine leading technology, outstanding craftsmanship and demonstrating a quality commitment for complete satisfaction in residential and commercial settings.

"This is a story sad but true of a company that has very good work but very bad business practices This begins in September of 2021 An estimator is sent to survey damage done by a roof leak due to a Solar installation On this visit, the estimator without authorization attempted to fix an issue The problem as was always suspected was part of a Solar panel installation and not even close to the problem area, again this was not authorized The estimator spent roughly 45 minutes for his activity and arrived late even though it was clearly communicated my sister-in-law worked nights and was asleep, there were 2 guests here, but they would authorize; this was presented as a favor - to attempt to stop further leakage Now to current time, on March 16th, 2022 I have resolved my roof issues with Reimagine Roofing - recommended Jim the representative for Silver City comes to inspect the work and close our business and I am presented with 2 invoices, 1 for the ceiling repair and 1 for what i have no idea It came to be that 1 as for the ceiling and 1 the additional charges were for the attempted unauthorized repair which didn’t do anything anyway Those charges were 586.46 - during an estimate appointment for insurance purposes this amounts to $13 a minute i will add that if you have any interaction them, they or their representative's do understand payment options using current electronic/computerized systems, like Zoelle or simple BillPay"

eugene b on March 2022

Full service restoration company. Preferred contractor on most insurance companies. Silver City Restoration provides an exceptionally positive post-disaster reconstruction experience. This is accomplished by establishing a strong client-focused relationship; delivering contracting services that combine leading technology, outstanding craftsmanship and demonstrating a quality commitment for complete satisfaction in residential and commercial settings.

"This is a story sad but true of a company that has very good work but very bad business practices This begins in September of 2021 An estimator is sent to survey damage done by a roof leak due to a Solar installation On this visit, the estimator without authorization attempted to fix an issue The problem as was always suspected was part of a Solar panel installation and not even close to the problem area, again this was not authorized The estimator spent roughly 45 minutes for his activity and arrived late even though it was clearly communicated my sister-in-law worked nights and was asleep, there were 2 guests here, but they would authorize; this was presented as a favor - to attempt to stop further leakage Now to current time, on March 16th, 2022 I have resolved my roof issues with Reimagine Roofing - recommended Jim the representative for Silver City comes to inspect the work and close our business and I am presented with 2 invoices, 1 for the ceiling repair and 1 for what i have no idea It came to be that 1 as for the ceiling and 1 the additional charges were for the attempted unauthorized repair which didn’t do anything anyway Those charges were 586.46 - during an estimate appointment for insurance purposes this amounts to $13 a minute i will add that if you have any interaction them, they or their representative's do understand payment options using current electronic/computerized systems, like Zoelle or simple BillPay"

eugene b on March 2022

Sos Exterminating - Phoenix

4.15(
26
)

Sos Exterminating - Phoenix

4.15(
26
)
Customers say: Super punctual
89 years of experience

Protect your home from unwanted pests. Put our 70+ years experience to work for you. Termite control when you need it. We can protect your home inside and out. Eliminate the most common types of weeds from your landscape or open field.

Protect your home from unwanted pests. Put our 70+ years experience to work for you. Termite control when you need it. We can protect your home inside and out. Eliminate the most common types of weeds from your landscape or open field.

Avatar for National Property Inspections

National Property Inspections

4.71(
7
)

National Property Inspections

4.71(
7
)
Customers say: Quick response
20 years of experience

2012 Maricopa Business of the Year. Arizona's premier home inspection company. Thermal imaging certified, no extra charges for pools. Statewide service. We schedule termite Inspections as part of our Inspections. A Rated BBB. 6 month warranty included with every inspection. 7 day per week service. www.arizonainspections.com Office 520-208-2590

2012 Maricopa Business of the Year. Arizona's premier home inspection company. Thermal imaging certified, no extra charges for pools. Statewide service. We schedule termite Inspections as part of our Inspections. A Rated BBB. 6 month warranty included with every inspection. 7 day per week service. www.arizonainspections.com Office 520-208-2590

Avatar for HomCo Lumber & Hardware

HomCo Lumber & Hardware

4.67(
6
)

HomCo Lumber & Hardware

4.67(
6
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

HomCo Lumber & Hardware is locally owned and operated by Mike Brackin. For the last 39 years HomCo has been Northern Arizona's premiere provider of building and home improvement needs. HomCo is open seven days a week to better serve our valued customers. HomCo's staff includes experts and professionals in building materials, interior design, cabinetry and counter tops, fireplaces, plumbing, electrical, key cutting and so much more. HomCo's fireplace team is the ONLY nationally certified team in Northern Arizona.

HomCo Lumber & Hardware is locally owned and operated by Mike Brackin. For the last 39 years HomCo has been Northern Arizona's premiere provider of building and home improvement needs. HomCo is open seven days a week to better serve our valued customers. HomCo's staff includes experts and professionals in building materials, interior design, cabinetry and counter tops, fireplaces, plumbing, electrical, key cutting and so much more. HomCo's fireplace team is the ONLY nationally certified team in Northern Arizona.

Avatar for All Custom Exteriors

All Custom Exteriors

4.53(
15
)

All Custom Exteriors

4.53(
15
)
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

Terril and Brian Kay saw a need in the White Mountains region for a company to install a full range of exterior building materials. All Custom Exteriors Inc. has become that ONE STOP SHOP providing dependable customer service linked with quality craftsmanship to meet your exterior building needs. Your advantage? You no longer need to work with multiple contractors. You gain guaranteed customer satisfaction with one company led by owners with 27 years of combined professional experience! From the beginning the Kay family set a goal to achieve and maintain a reputation of value and quality in services offered. In part this is accomplished by All Customs Exteriors offering a wide assortment of choices with a focus on quality. Their goal is to provide high standards in old fashion service with competitive pricing while always striving to offer skilled workmanship using quality materials. The growth of All Customs Exteriors demanded a top-quality Showroom for exterior building products for the White Mountains Region. In 2007 this need was met with the completion of a beautiful 4,000 square foot showroom and an 18,000 square foot warehouse. Additional DBA - All Custom Exteriors Inc. Additional address - 500 W Pinedale Rd, Taylor, AZ, 85939.

Terril and Brian Kay saw a need in the White Mountains region for a company to install a full range of exterior building materials. All Custom Exteriors Inc. has become that ONE STOP SHOP providing dependable customer service linked with quality craftsmanship to meet your exterior building needs. Your advantage? You no longer need to work with multiple contractors. You gain guaranteed customer satisfaction with one company led by owners with 27 years of combined professional experience! From the beginning the Kay family set a goal to achieve and maintain a reputation of value and quality in services offered. In part this is accomplished by All Customs Exteriors offering a wide assortment of choices with a focus on quality. Their goal is to provide high standards in old fashion service with competitive pricing while always striving to offer skilled workmanship using quality materials. The growth of All Customs Exteriors demanded a top-quality Showroom for exterior building products for the White Mountains Region. In 2007 this need was met with the completion of a beautiful 4,000 square foot showroom and an 18,000 square foot warehouse. Additional DBA - All Custom Exteriors Inc. Additional address - 500 W Pinedale Rd, Taylor, AZ, 85939.

WESMOR INC

3.78(
9
)

WESMOR INC

3.78(
9
)
Customers say: Terrific value
38 years of experience

FAMILY OWNED AND OPERATED. AVAILABLE FOR ESTIMATES. NO TRAVEL CHARGE. AVAILABLE 24 HOUR FOR EMERGENCY SERVICES FOR WATER REMOVAL AND MOLD ABATEMENT. FREE ESTIMATES.

FAMILY OWNED AND OPERATED. AVAILABLE FOR ESTIMATES. NO TRAVEL CHARGE. AVAILABLE 24 HOUR FOR EMERGENCY SERVICES FOR WATER REMOVAL AND MOLD ABATEMENT. FREE ESTIMATES.

Showing 1-10 of 35
Insulation questions, answered by experts

Yes, proper insulation in your attic or ceiling can help prevent ice dams. When attic spaces are too warm, they cause the snow on the roof over those areas to melt more quickly than the rest of the roof and then travel downward to a colder section of the roof where they refreeze. If less heat is allowed to escape from underneath the roof, snow will melt at a more consistent rate, making ice dams less likely.

In most cases, the building code in your location will determine the minimum amount, in R-value, required for your home's walls, attic, and other spaces. For attics, the minimum R-value amounts start at R30 in the south, R38 in mild climate locations, and R49 in northern states and cold western areas.

An insulated garage door is a great long-term investment if it’s within your budget. They save energy and give the door year-round usability. In other words, the door pays for itself after a few nasty winters. Most modern garage doors already have a fair amount of insulation, so look into those options if you don’t feel comfortable splurging.

Yes, spray foam insulation can be applied to your ductwork and effectively insulate your ducts. Blanket insulation is the easiest insulation product to DIY since it is easy to wrap around ducts. However, spray foam insulation can also benefit your HVAC system if applied to air ducts.

The most affordable way to insulate behind unfinished walls is to install fiberglass batts or rolls. These total around $0.75 per linear foot, with the width matching the gaps between standard studs perfectly. However, it’s important to consider the R-value of your insulation and the climate in your area, as fiberglass insulation isn’t the best in terms of preventing heat transfer. Plus, the most affordable option may cost more on electricity bills over time. The most affordable way to insulate behind finished walls is to leave them up and use blown-in insulation to avoid drywall replacement.

The Flagstaff, AZ homeowners’ guide to insulation services

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