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Find Insulation pros in Saint Joseph

A+ Insulation
4.7(
184
)

Serving Saint Joseph, MO and surrounding areas

Approved

In business since 2004

Free estimates

Warranties offered

"A+ Insulation was great to work with from the time of the quote, the team coming out and the quality inspection check afterwards. The work team was top notch on their interactions and professionalism. Extra care was was taken by all team members with regards to COVID. I would absolutely recommend A+ Insulation."
Ceilings and Walls
Before
Blow in Blanket System
Closed Cneell Polyuretha
Interior Wall Sound-proof

+16

55 neighbors recently requested a quote
Recommended by99%of homeowners
Avatar for Reliable Insulation
Reliable Insulation
5.0(
7
)

Serving Saint Joseph, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Credit card accepted

"The company was efficient and communicated well. I had several opportunities to check every area they worked on over and didn’t find anything they missed or skimped on. I went with their wet blown cellulose for my interior walls. It dried quickly and remained in place for a few weeks until my drywall went up."
Response time6 days
9 neighbors recently requested a quote
Recommended by14%of homeowners
Avatar for Green Star Energy
Green Star Energy
4.8(
242
)

Serving Saint Joseph, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Warranties offered

"A sole proprietor business, Green Star provided a very competitive itemized written bid. Stuart was very accommodating in considering old (>100 years) home challenges and discussing insulation options and solutions. Promptly arrived on scheduled date, his team was diligent in adding blow in insulation to attic and exterior wall space, as well as foam to basement sill plates, all in one day. Very friendly, knowledgable, professional and unobtrusive in providing their services."
Larson Project
Larson Project
Before
Reflective insulation - After
Solar attic ventilating Fan

+12

Response time2 days
49 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Evolution Sprayfoam, LLC
Evolution Sprayfoam, LLC
5.0(
6
)

Serving Saint Joseph, MO and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"Very efficient and tidy. The work area was taped off well and he was very informative about what the product would do for my home. He knows all of the answers to all my questions pertaining his product and how it will efficiently work for me. I live in an old house that is very drafty. This winter my home has been very warm compared to last year. 10/10 recommend this business to anyone."
1
2
3
4
5

+66

Response time9 hrs
11 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Good Attic, LLC
Good Attic, LLC
5.0(
5
)

Serving Saint Joseph, MO and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

Good Attic is a trusted attic insulation and home comfort company serving homeowners throughout St. Charles and the greater St. Louis area. We specialize in blown-in insulation upgrades, air sealing, attic cleanouts, and ventilation improvements that solve hot/cold rooms, drafts, high energy bills, and poor airflow. Our team provides honest pricing, same-week appointments, and detailed before-and-after photos so you always know exactly what you’re getting. If you want a cleaner, more comfortable, and more energy-efficient home, Good Attic delivers results you can feel immediately.

Response time5 days
93 neighbors recently requested a quote
Avatar for Blue Collar Building Solutions LLC
Blue Collar Building Solutions LLC
4.9(
14
)

Serving Saint Joseph, MO and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: Quick response

"They were very professional and they took the time to explain what they did. They took before and after pictures. They also cleaned the area where the insulation landed in my garage afterwards. I would highly recommend them"
Before
After
Softwash Shingle Roof
House - Before
House - After

+28

Response time9 hrs
Recommended by78%of homeowners
Showing 1-10 of 30

FAQs for insulation service projects in Saint Joseph, MO

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 Saint Joseph, MO 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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