New Roofs Inc.
“The quality of their work is outstanding, and my new roof looks fantastic.”
Best Insulation Contractors in Waukesha, WI
15 contractors listed · 8 in Waukesha · 4 open 24/7 · 7 open weekends · 13 rated 4.5+
Data verified October 20, 2026
JB Custom
“Communication was timely, work was excellent and this is the first drywall service that I ever had that insured the rest of the house remained cleaned.”
Retrofoam
“She said the crew of Zach, Cade and Justin did w exceptional job taking their time thru every step of the process.”
Abby Home
“Workmanship and professionalism of the installers for the roofing project was superb!!!”
Waukesha Roofing & Sheet Metal
“Once the work was agreed, they persistently dodged the weather and got my repairs done in a timely fashion, They cleaned up at the end of every day and were very respectful of my property, I couldn't be more pleased with the job.”
Spray Foam Authority
“The workers found out that there was more to do than they actually thought, so they took the extra time to get the job done right.”
The 15 contractors listed for Waukesha, WI insulate attics, walls, crawl spaces and rim joists. Details under each one about materials, hours and the services advertised are copied from the company's own site; star ratings and comments come from public reviews.
Area overview: Waukesha, WI
8 of the 15 contractors we list are based in Waukesha; the other 7 serve Waukesha from towns including New Berlin (7 mi), Eagle (2 mi) and Vernon (3 mi). 14 of the contractors on this page have a rating, from 4.3 to 5.0 across 3,388 reviews; 9 have 50 or more reviews and 13 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (96%), quality (92%) and responsiveness (84%). 4 are open around the clock; 7 are open on Saturdays and 6 on Sundays. The services the contractors on this page list most often on their websites are commercial roofing (2), residential roofing (2), siding installation (2) and solar installation (2). 2 show a license on their websites; 1 lists staff certifications (GAF) and 6 have a BBB rating of A or A+. Domain records put 11 websites of the contractors on this page at ten or more years old; the oldest dates from 1994. 4 offer emergency call-outs; 5 offer financing or payment plans; 9 give free estimates; 3 are family- or locally-owned and 4 list coupons or special offers. We count these figures across the contractors on this page; distances are straight-line, and hours and prices change, so confirm the details with the contractor before you book.
How many listings here have a website?
A website is on file for all 15 contractors here. Use it to see which materials they actually install, since a firm that only sprays foam will recommend foam. A contractor with no site is not automatically worse, but you will have to ask on the phone what the site would have told you.
Bay Building Supplies Inc.
“These ppl know what they are talking about when it comes to building products.”
Coating & Foam Solutions LLC
Madison Rose Mechanical Insulation
Smart Roofing & Sheet Metal Company
“He responded to my call same day, then came out in the evening to assess situation and had advice for us on how to handle the problem.”
Exterior Pros
“We got a new tub and 3 piece surround and the care they put into making sure it was done correctly was unmatched.”
Anderson Home & Foundation Inspection LLC
“He also showed extensive experience and deep knowledge about houses and many unique situations.”
Guardian Home Improvements
“Guardian's bid was competitive, the communication was excellent, the workers arrived on time and did an efficient and effective job and cleaned up well.”
Infinity Exteriors
“Charlie came out for an estimate, and did nothing but make me feel comfortable and informed.”
Endurance Exteriors
“I kept watching the progress on the roof and they encouraged me to ask questions and have them explain everything along the way.”
Why these companies made our list
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