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Find Insulation pros in Greenfield

Avatar for Insulation Specialists, Inc.
Insulation Specialists, Inc.
4.7(
113
)

Serving Greenfield, WI and surrounding areas

Approved

In business since 1995

Free estimates

Warranties offered

"Highly recommend this company for insulation work-knowledgeable, thorough in talking through the process, on-time, courteous, and thorough cleanup."
 R-50
 18" thick
Ice Dam Control
 Rafter Vents are 4' long
 sealed with foam

+8

Response time6 hrs
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for THERMAL COMFORT INC
THERMAL COMFORT INC
4.9(
45
)

Serving Greenfield, WI and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"We have been in a 2 year long build with many facets. I reached out to Dason at the very beginning about the project and his professional insight was spot on. I had very specific engineering requirements for our build to achieve a very high performance, Thermal comfort gave us what I required. I had a previous Spray foam contractor from a prior build and received 3 additional bids for this 2020 project. I choose Thermal comfort from the 4 companies for several reasons and I am very pleased that I did. Closed cell IMO is the only way to go, that said the install is critical and the site crew was fantastic. George, was the lead and listened to my install concerns and did an excellent job. Rich and Walt were also on hand and also did great. They accommodated us the best possible in the timing of our project. They were thorough, conscientious and and their site prep and clean up was excellent. We have future projects and they will be our insulation contractor from now on."
Additional Photos
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Additional Photos

+4

Response time2 days
2 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Comfort 1st Insulation
Comfort 1st Insulation
4.6(
32
)

Serving Greenfield, WI and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Everyone at Comfort 1st are wonderful to work with ! I recently got my attic insulated with them. Overall, very pleased with team and the work, I would highly recommended them. I received several quotes from competitors, but, David from Comfort 1st, was the only one to detail out all aspects of the job and was thorough in explaining the process. Mike was also great to work with and really knows his stuff. The crew who came onsite did a wonderful job in preparation and cleaned up once they were done. Overall, great communication with all team members. Once again, great company, would highly recommend them."
Evenly Applied Foam in the Band Joist
Sealing the Joist
Overview of Insulated Band Joist
Before Insulation Applied
Before Insulation - Empty Attic

+9

Response time1 day
Response rate92%
12 neighbors recently requested a quote
Avatar for INSULATION SPECIALISTS INC
INSULATION SPECIALISTS INC
4.9(
11
)

Serving Greenfield, WI and surrounding areas

Approved

In business since 1995

Free estimates

Credit card accepted

"Jim Maas and his crew do a great job. They work very hard and are conscientious, careful and do a good clean-up. Jim is a wealth of knowledge about construction and will provide his client with a lot of information about their job, house, the process and the best way to proceed. He will work within any budget. We had him do the largest portion of our home a few years ago and are now renovating another portion and wanted Insulation Specialists because they did such a great job last time and we also noticed that, through lower energy bills each month, the difference between foam insulation and traditional bat insulation pays for itself in time."
Additional Photos
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+6

Response time1 day
3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for De Andas Insulation
De Andas Insulation
5.0(
19
)

Serving Greenfield, WI and surrounding areas

Approved

In business since 2021

Free estimates

Offers commercial services

"Very friendly and did an amazing job spray insulating the bottom of my mobile grooming trailer! I highly recommend him for any insulation needs!"
Garage Walls
Garage Ceiling
Basement furred walls
Residential Basement
Residential Basement

+1

Response time8 hrs
Response rate87%
1 neighbors recently requested a quote
Avatar for Elite Insulators
Elite Insulators
4.8(
21
)

Serving Greenfield, WI and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"Kyle wen above and beyond my expectations! Very professional and knowledgeable! Every business should have someone like Kyle. I would highly recommend Elite Insulators. I have other projects coming up and he is already hired! Lol! THANK YOU Kyle!!"
Cathedral Ceilings
Ceiling/Wall
Walls
Amish Ice Box
Amish Ice Box

+56

Response time2 days
Recommended by57%of homeowners
Thermal Comfort, Inc.
4.1(
19
)

Serving Greenfield, WI and surrounding areas

Approved

Super Service Award Winner

In business since 2001

Free estimates

Small jobs welcome

"Was very happy with the work they did insulating my cathedral ceiling. They were very polite, organized and cleaned up after they had finished working. I could not get all of the old insulation out in some spots and there were some clips that needed to be removed. They took care of that for me, which I greatly appreciated. Great company to deal with. Also, thought their pricing was good."
Rim Joists
Rim Joists
 Wall before foaming
 Same wall after foaming
Wall and rim joist

+3

12 neighbors recently requested a quote
Recommended by71%of homeowners
Avatar for Premier North Insulation
Premier North Insulation
3.8(
78
)

Serving Greenfield, WI and surrounding areas

Approved

In business since 2011

Free estimates

Customers say: Quick response

"Specific project was attic, dense pack, and foam insulation. Very clean, friendly, and professional crew. Took the time to explain what they were doing, why, and what was wrong with what they found. Did a Focus on Energy assessment along with this work, recommended by Premier North, to make sure we let the science dictate the work. Very impressed with my overall experience."
Response time2 days
Response rate88%
22 neighbors recently requested a quote
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FAQs for insulation service projects in Greenfield, WI

Old insulation should be removed when it shows damage, contamination, or heavy deterioration. If you notice water stains, rodent droppings, mold, or large gaps, plan on taking it out to protect your home’s energy performance and indoor air quality. Removing compromised material eliminates health hazards, cuts energy loss, and sets the stage for a safer, more efficient attic—all while keeping utility bills in check.

R-value measures how well insulation resists heat flow—the higher the number, the better it slows heat transfer. The right R-value keeps your home warmer in winter and cooler in summer, saving energy year-round. Match the rating to your climate zone and have a pro verify performance over time, because moisture or settling can lower R-value and cut efficiency.

Attic insulation can stay in place for 80 to 100 years, but its performance often drops after the first 15. As dust, moisture, or mold build up, the material loses R-value and allows heat to escape. Schedule periodic inspections so a pro can tell you when replacement makes sense—helping you keep energy bills down and indoor comfort up.

You can over-insulate an attic. Beyond the recommended R-value, extra layers don’t add efficiency and can trap moisture, leading to mold or reduced performance. A local insulation pro can measure current levels, confirm the right target for your climate, and advise on any adjustments so you avoid future energy or maintenance headaches.

Insulation can be damaged by mold, pests, water leaks, or accidental electrical contact. When the material is compromised, it loses R-value and can introduce health hazards. Removing and replacing affected sections restores efficiency, while routine inspections from a qualified pro help you catch problems early and keep your attic safe and energy-smart.

The Greenfield, WI 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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