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TRUSTED BY CORVALLIS, OR HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon144
    Verified drywall insulation services reviews

Find Drywall insulation pros in Corvallis

Avatar for HomeRx
HomeRx
4.3(
110
)
Blown-In Insulation - Install or Upgrade

Serving Corvallis, 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 um-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
171 neighbors recently requested a quote
Recommended by85%of homeowners
Sierra NW Insulation, LLC
5.0(
4
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Corvallis, OR and surrounding areas

Approved

In business since 2018

Free estimates

Customers say: True professional

Residential retro and new construction Insulation installment in attic, walls, and crawl. We install or upgrade blown-in, batt, rolled, and reflective insulation. We are an affordable family owned business that has 20+ years working for big companies in our area.

1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Marshall's Specialty Services
Marshall's Specialty Services
5.0(
5
)
Blown-In Insulation - Install or Upgrade

Serving Corvallis, OR and surrounding areas

Approved

In business since 1948

Free estimates

Credit card accepted

Marshall's Specialty Services is a long-established home services company serving Lane County, Oregon. Founded in 1948, the company has grown from a small heating oil business into a full-service provider offering HVAC, heating and cooling, insulation, fireplaces, water heaters, duct cleaning, and indoor air quality solutions for residential and commercial customers. The company is headquartered in Springfield, Oregon and has built a reputation for quality workmanship, experienced technicians, and customer-focused service.

Project photos
Project photos
Project photos
Project photos
Project photos

+3

18 neighbors recently requested a quote
Avatar for GARRISI INSULATION AND WATER MITIGATION LLC
GARRISI INSULATION AND WATER MITIGATION LLC
5.0(
1
)
Blown-In Insulation - Install or Upgrade

Serving Corvallis, OR and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

GARRISI INSULATION AND WATER MITIGATION LLC proudly serves its customers with pride, integrity and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. We are locally owned and operated. Give us a call today!\n

New construction
New construction
New construction
New construction
New construction

+5

19 neighbors recently requested a quote
Avatar for Josh Lowe's Dr. Energy Saver
Josh Lowe's Dr. Energy Saver
4.5(
27
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Corvallis, OR and surrounding areas

In business since 2006

Free estimates

Credit card accepted

"They put in sound proofing insulation in a wall in my furnace room. It didn't really work, but it wasn't their fault due to the wall configuration. But they were very professional and did the best job they could due to my circumstances. I would hire them again."
Bill Drummond, General Mgr. and Energy Consultant
AJ DeLaRosa
Eric Gibson, Energy Consultant
Lee Tracy, Energy Consultant
Sean Copas, Energy Consultant

+15

Recommended by89%of homeowners
Timberland Insulation, LLC
4.4(
35
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Corvallis, OR and surrounding areas

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
Recommended by87%of homeowners
Showing 1-10 of 33
Drywall Insulation questions, answered by experts

Yes, you can install drywall over plaster, but there are important factors to consider. While it can create a smooth, flat surface, it is often not the best approach. Installing drywall over plaster will increase the wall's thickness, which can cause issues with existing window and door frames that may no longer fit. You might also need to adjust power outlets to keep them accessible. A better, though more expensive, option is to remove the old plaster and lath entirely before installing new drywall. Drywalling directly over plaster seals in the old material, and if any problems arise later, you will need to remove both layers down to the structural beams for repairs. Given the potential complications, this job is best handled by professionals.

With its breathability and flexibility, lime plaster is among the most durable of all plaster types. It's also fire-resistant and has a proven track record, as people have been using it for thousands of years.

However, all plaster types will last for many years with the right care and treatment. Proper preparation and installation will also help ensure your plaster walls look great for as long as possible.

New plaster must be fully dry and cured before painting. The drying time for plaster ranges from 1 to 4 hours, but the curing process can take more than five days, depending on various factors, including humidity levels, temperature, the amount of plaster used, and airflow in the area. You should always apply primer before painting plaster.

You should stagger drywall sheets to help prevent cracking. The joints between drywall sheets are the weak spots, so if you install drywall with seams aligned, you’ll create weak lines that run across the length of the wall and extend from floor to ceiling. But when you stagger drywall, the solid sections of panels will support the joints. This can prevent seams from cracking or separating due to fluctuating temperature and humidity, vibrations from movement inside the home, and gravity.

You should wait at least 24 hours for drywall mud to dry before sanding or applying another coat. However, the exact drying time depends on several factors, including the thickness of the application, room temperature, humidity, and the type of compound used. Thicker layers, or projects in high humidity, may require 48 hours or more. Lightweight compounds tend to dry faster than heavier, all-purpose ones. You'll know the mud is ready when it feels completely dry and firm to the touch and has changed to a consistent light color. Sanding too early can cause smudging or gouges, so patience is essential for a smooth finish.

The Corvallis, OR homeowners’ guide to drywall insulation services

From average costs to expert advice, get all the answers you need to get your job done.