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Find Insulation pros in Ottawa

Avatar for Green Factor Insulation
Green Factor Insulation
4.6(
106
)

Serving Ottawa, KS and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Free estimates

Warranties offered

"Awesome job, starting with Nathan who was our initial contact. He was thorough and very knowledgeable! I will be contacting them very soon about adding insulation in my walls. I highly recommend them."
 Closed Cell Heatlok Soy 200
 Double Hung Vinyls
 Lifetime Warranty
Building in Effingham
 Rebuild sill and trim inside

+93

Response time2 days
18 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Green Star Energy
Green Star Energy
4.8(
242
)

Serving Ottawa, KS 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
45 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Air Tight Of Kansas
Air Tight Of Kansas
4.5(
13
)

Serving Ottawa, KS and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"Awesome job of insulating the attic willing to explain any concerns .felt sorry for the tech because of the high temperature that day but he never complained. Great job"
Residential Home
Metal Buildings
Metal Buildings
Metal Buildings
Metal Buildings

+2

Response time2 days
Response rate88%
15 neighbors recently requested a quote
Avatar for Modern Foam Solutions LLC
Modern Foam Solutions LLC
5.0(
5
)

Serving Ottawa, KS and surrounding areas

Approved

In business since 2022

Free estimates

Offers commercial services

Modern Foam Solutions LLC offers top-quality services for residential and commercial properties for both existing structures and new construction. Whether you need small repairs or insulation applied in the walls and floors of your entire home, we have the skill and expertise to get the job done promptly and seamlessly. Our diagnostic testing can help us find air leaks in your home, identifying areas where air is coming in or escaping out. It can also reveal if your home is too air tight.\n\nCall us today! (866) 343-FOAM (3626)

Spray Foam Insulation
Metal Building Spray Foam Systems
Concrete Lifting
Polyurea Roof Coating
Open Cell Spray Foam Insulation

+1

Response time3 days
11 neighbors recently requested a quote
Recommended by40%of homeowners
Avatar for EZ Seal Spray Foam LLC
EZ Seal Spray Foam LLC
New to Angi

Serving Ottawa, KS and surrounding areas

Approved

Free estimates

Offers commercial services

We are a locally owned and operated spray foam insulation business committed to providing exceptional service, quality workmanship, and honest communication on every project we undertake. Our experienced team takes pride in delivering customized solutions tailored specifically to meet each client's unique needs. We value integrity and reliability, ensuring every job is completed to your satisfaction. Our goal is to build lasting relationships with our customers through consistency, professionalism, and outstanding results. Let us show you why homeowners continually choose us as their trusted insulation contractor.\n

Gallery
Hobby house
Hobby house
Hobby house
Hobby house

+4

8 neighbors recently requested a quote
Avatar for C4 Insulation LLC
C4 Insulation LLC
4.9(
8
)

Serving Ottawa, KS and surrounding areas

In business since 2023

Free estimates

Emergency services offered

"I can’t say enough good things about this insulation service! From start to finish, the experience was absolutely top-notch. The team was punctual, professional, and incredibly knowledgeable. Mauricio took the time to explain all my options and helped me choose the best solution for my home. Mauricio also worked around my schedule going above and beyond with communication ensuring I was confident in my home improvement solution. The installation itself was seamless—efficient, clean, and with great attention to detail. I was impressed by how respectful they were of my space, leaving everything spotless once the job was done. If you’re considering upgrading your insulation, don’t hesitate—C4 Insulation is reliable, trustworthy, and truly cares about delivering quality results. I highly recommend them to anyone looking to improve their home’s comfort and efficiency!"
Project 575
2 inches closed cell
Part 2 after foam
Master bedroom
Aftermath

+10

Response time1 day
22 neighbors recently requested a quote
Avatar for CBI, LLC
CBI, LLC
4.7(
15
)

Serving Ottawa, KS and surrounding areas

In business since 2007

Free estimates

Warranties offered

"I FELT PLEASED WITH BRENDAN AT CBI LLC HE WAS HERE ON TIME AND FELT HE DID A GOOD JOB AND WAS NOT UNREASONABLE ON HIS PRICE. I FELT HE WAS HONEST AND WELL KEPT APPEARANCE. I WOULD RECOMMEND HIM TO FRIENDS OR FAMILY NEEDING INSULATION. I WAS HAPPY TO HAVE FOUND HIM FOR THE JOB."
Recommended by92%of homeowners
Showing 1-10 of 30

FAQs for insulation service projects in Ottawa, KS

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 Ottawa, KS 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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