
Serving Dupont, WA and surrounding areas
Approved
In business since 2011
Free estimates
Small jobs welcome
"Very high quote for just closed cell spray insulation"





+32


Serving Dupont, WA and surrounding areas
Approved
In business since 2011
Free estimates
Small jobs welcome
"Very high quote for just closed cell spray insulation"





+32

Serving Dupont, WA and surrounding areas
Approved
Super Service Award Winner
In business since 2006
Free estimates
Warranties offered
"Insulation Northwest did a fantastic job insulating my 1944 house recently, with Drill & Fill in ground-floor walls never before insulated, plus a complete insulation of the second floor attics and interior walls. They were super-careful cutting and drilling my old cedar shakes, replacing them perfectly and caulking them afterwards. They worked around plants without damaging a thing while doing the walls outside. I have old lath and plaster walls but blowing in the fill left not even a hairline crack or any trace on the inside. Much appreciated! They spent two long days at my house and they were clean, friendly, professional, and helpful . This is my second time hiring Insulation Northwest and I give them my highest recommendation."




Serving Dupont, WA and surrounding areas
Approved
In business since 2015
Free estimates
Warranties offered
"I hired PNW insulation to spray foam my 30x50 metal building. Ruben arrived on time for the estimate appt and was thorough explaining the process.. I had 4 other bids before PNW. On install day the team arrived on time. It took 2 days to complete the job. I am very happy with the end results. I would recommend PNW insulation to any one needing spray foam work done. They did a great job"





+22

Serving Dupont, WA and surrounding areas
Approved
In business since 2021
Free estimates
Credit card accepted
"We had Lake Atitlan Insulation remove our old insulation and replace it with R-38. I enjoyed working with Nanni from the initial meeting to the final step of installing the insulation. Very knowledgeable lady and truly exceptional customer service. A highly recommended insulation contractor."

Serving Dupont, WA and surrounding areas
Approved
In business since 2022
Free estimates
Credit card accepted
"I asked for help with no notice and they responded with the repair the very next day because I was only in town for 2 days to fix the insulation problem for my home sale inspection. Thanks very much for your help today! I would happily recommend them anytime!"


Serving Dupont, WA and surrounding areas
Approved
In business since 2009
Free estimates
Warranties offered
"Fantastic. Of all the home improvement companies who have worked on many different jobs at this house in six years, Madrona takes the cake for providing the best quality work and amazing customer service. Madrona was the only company who gave us a thorough plan to not only put insulation in the attic but also to improve ventilation and ensure all roof penetrations were properly sealed. They added 1300 ft of R-44 blown fiberglass insulation over existing rock wool insulation that was fine but inadequate, to bring it to R-49. They fashioned a new wood access panel to the attic with a huge covered batt of fiberglass insulation fastened on the upper side and it feels like opening a secure air lock on the rare occasions where we've looked up into the attic. After they sealed all air penetrations in the attic they were very happy to show us what they did before adding the insulation. They installed insulation shield around the chimney, six roof jacks for proper venting, and vented kitchen and bath fans to dampered roof jacks, insulated with R-11 fiberglass batts. Four years later, the attic looks fantastic - there is no sign of any moisture and the blown in insulation looks as fluffy and lofty as when it was newly installed. I mistakenly thought one of the bath vents had been filled with insulation foam, causing the fan to not work very well, and Madrona sent someone out the next day even though the job was completed four years ago. Curt investigated and then politely and patiently explained that the side vent had been replaced with a better roof vent. And indeed, the fan was blowing air through the roof vent they installed and it is the old fan that is the problem, not Madrona's work. It would be wonderful if all companies stood behind their work this way."



Serving Dupont, WA and surrounding areas
Approved
Super Service Award Winner
In business since 2025
Free estimates
Warranties offered
"We literally been roasted in our house especially on the second floor with that late heatwave going on . Eric from Insulation Pro took care of our attic. Full insulation replacement. Some mold problems and vents to reconnect . I was skeptic I even tested with the thermostat furnace but it literally did the job. Couldn't be happier."





+59

Serving Dupont, WA and surrounding areas
Approved
In business since 2022
Free estimates
Offers commercial services
"We got out Attic and crawlspace insulation removed and replaced, and I was highly impressed by the quality of work. He was Very clean, and very knowledgeable and explained everything in detail. I shopped around and found this was the best price. Highly recommended."

Serving Dupont, WA and surrounding areas
Approved
In business since 2019
Free estimates
Small jobs welcome
"I would highly recommend Kracken Insulators. They did a great job and cleaned up when they were done"





+7

Serving Dupont, WA and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Emergency services offered
"I've worked with many companies over the years doing upgrades to veterans homes and other home insulation projects but this company really stood out above the rest. Absolutely exceptional! Professional, high quality, competitively priced and his team did the work beyond my expectations. Completely removed old, contaminated insulation, treated the entire attic to remove mold and other contaminates and then replaced with top quality insulation "to code." I'll be recommending them for any future projects when restoring homes."