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Top-Rated Insulation pros in Forest Grove - Updated Nov 2026

Avatar for JR Insulation Drywall, Inc.
JR Insulation Drywall, Inc.
4.6(
67
)
Insulation - Install or Upgrade

Serving Forest Grove, OR and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"JR Insulation is a great company!! They did everything from start to finish as promised, on time, polite, clean, and on budget. I can't recommend them enough. They also fixed a problem that I created in my own ignorance for free just to make me even happier. I told them it wasn't necessary but they insisted. JR's pricing was the absolute best for everything they did. Not the lowest bid but the lowest price to value, which in my opinion is the lowest bid. I would use they again, in fact, I would not use any other company for insulation or dry wall. Brian"
Additional Photos
Additional Photos
Additional Photos
7 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Northwest Weatherization
Northwest Weatherization
4.7(
97
)

Serving Forest Grove, OR and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

"The guys at NW Weatherization did an excellent job installing additional insulation in my attic and crawlspace. They also reattached the exhaust fan boot. I can tell that the added insulation is helping keep my home warmer since the furnace doesn't come on as often and run as long. Thank you Ryan and everyone at NW Weatherization!"
Example of a Properly Insulated Attic
Difference between insulated and non-insulated
The attic before insulation
A Properly Insulated Attic
Floor Insulation

+22

Response time1 day
36 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Josh Lowe's Dr. Energy Saver
Josh Lowe's Dr. Energy Saver
4.4(
101
)

Serving Forest Grove, OR and surrounding areas

Approved (Corporate)

In business since 2006

Free estimates

Warranties offered

"We had a small job to remove/replace insulation that may have been soiled in our attic from a squirrel that got up there years ago. It was mentioned in our home inspection. After going up to take a look, Sean explained he didn’t see any soiled insulation but there was a small area that had been moved away from the corner and it was effectively empty. It was really too small a job though to warrant them coming out to blow stuff in so he recommended just taking a leaf blower up there to redistribute it evenly. Brilliant idea! He also graciously took a look at our crawl space and identified some areas we should address but ones we could do on our own. He was great to talk to and very helpful and reasonable. So nice in these days of everyone trying to upsell everything. If and when we need insulation work, we’ll be calling Dr. Energy Saver! Thanks so much, Sean Becker!"
fiberglass in attic not working
attic insulated with closed-cell spray foam
Spray Foam Insulation
Spray Foam Insulation
Spray Foam Insulation

+36

Response time1 day
92 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for HomeRx
HomeRx
4.3(
110
)

Serving Forest Grove, OR and surrounding areas

Approved

Super Service Award Winner

In business since 2013

Free estimates

Credit card accepted

"They installed new insulation for us in an un-insulated attic space. They were well-priced, on-time, and very easy to work with. Workers all wore protective equipment and were both professional and friendly."
Masking off rooms
West Seattle custom
 Lead safe practices
Yard taped off for Lead Safe
 Keeping your home clean is important to us

+12

Response time1 day
169 neighbors recently requested a quote
Recommended by85%of homeowners
Timberland Insulation, LLC
4.4(
35
)

Serving Forest Grove, OR and surrounding areas

Approved

In business since 2011

Free estimates

Credit card accepted

"Juan of Timberland Insulation did an outstanding job. We had critters get into our crawl space where they ran amok all through our insulation. The old insulation had to be removed and new insulation installed. The crew at Timberland out performed my expectations. I would highly recommend them."
Response time2 days
2 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Westside Drywall, Inc.
Westside Drywall, Inc.
4.1(
121
)

Serving Forest Grove, OR and surrounding areas

Approved

In business since 1979

Free estimates

Emergency services offered

"The Oregon Energy Trust guy was here at the same time, and said the crews had to do substantial work in the attic to repair fan ducts. From all the sawing and hammering I heard, it sounds like quite a bit got fixed up there. It was nice that the Energy Trust guy knew insulation jobs so well and provided reassurances that everything he saw was being done correctly. I'm not going to crawl under the house to see the new vapor barrier and new pipe insulation, have to count on their reputation and good word for that part of the job."
Before Restoration
Blow In Blanket System
During Wall Injection
Before Restoration
Complex Window Design

+18

10 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Renewal Renovations, LLC
Renewal Renovations, LLC
5.0(
12
)

Serving Forest Grove, OR and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"Hired them for 2 house exterior painting projects. Owner very involved and good work at reasonable price. I would recommend them and will use them again."
Deck Creations!
New Siding Installation
Kitchen Remodel
Roof Installation
Awning Construction

+38

Response time4 hrs
Response rate98%
Recommended by100%of homeowners
Avatar for Crawlspace Masters, Inc.
Crawlspace Masters, Inc.
4.9(
94
)

Serving Forest Grove, OR and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"The Crawlspace Crew had great communication with me from the start all the way through the the new insulation being installed. Highly recommend working with this company!"
After
After
After
After
After

+221

Response time2 days
Response rate95%
41 neighbors recently requested a quote
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FAQs for insulation service projects in Forest Grove, OR

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 Forest Grove, OR 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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