Lee’s Summit Air Sealing & Insulation for One of the Metro’s Youngest Housing Stocks
Since 2009, Sean, Caleb, and Luke have taken MyGreenKC® Insulation (Green Improvement Consulting) crews into Jackson County attics and crawlspaces. Lee’s Summit was incorporated in 1865 as Strother. It took its current name three years later and grew up beside the Missouri Pacific line.
Mostly built since 1990: the Census Bureau’s ACS estimates (2020–2024) put the median Lee’s Summit home at 1994, and almost 59% of homes were built in 1990 or later. Only about a quarter are older than 1980. In homes this young, the usual problem is air leakage, not missing insulation, so we find it with a blower door and seal it with spray foam. Then we decide how much insulation the attic actually needs.
Exact written quote on deep blown-in attic insulation, BPI air sealing, spray foam rim joists, or old/critter insulation removal.
Full Blower-Door depressurization test, FLIR infrared thermal imaging scan, duct leakage check & rebate roadmap.
Mention this Lee’s Summit page for $50–$100 off Hot 2nd-Floor Attic Air Sealing, Garage Bonus-Room Rim Joists, or Deep Blown-In Upgrades! Just mention this Lee’s Summit, MO page when you call!
Most of our repeat clients call us the week they buy a new KC home! Get priority scheduling & repeat-client loyalty pricing on your new house.
Love your comfortable home? Refer a neighbor in Lee’s Summit, MO and earn $100, $200, up to $300 in referral rewards—just have them mention your name!
Lee’s Summit at a Glance
- Housing units: about 42,000 (ACS 2020–2024).
- Built in the 1990s: about 23%, the largest single decade.
- Built 2000–2009: about 20%.
- Built 2010 or later: about 16%.
- Electricity: Evergy Missouri West, per the Missouri PSC locator. Gas: Spire Missouri. Water and sewer: Lee’s Summit Water Utilities.
Lakes, Longview and Postwar Growth
Rapid growth began after World War II, and a Western Electric plant that opened in 1961 sped it up. Man-made lakes in and around the city include Raintree Lake (1970s), Lakewood Lakes (1976) and Longview Lake (mid-1980s). On the southwest side, lumber baron R.A. Long began building Longview Farm in 1912. Much of that land is now New Longview, a mix of new homes and restored farm buildings, along with Longview Lake and MCC-Longview.
What we usually find in these homes:
- 1970s–1980s homes: original insulation that has packed down, and leaky attic hatches and whole-house fans.
- 1990s–2000s two-stories: knee walls, bonus rooms over garages, vaulted ceilings and recessed lights that leak heat into the attic.
- Newer builds: a small number of large leaks, often at the attic access, duct boots and plumbing penetrations.
Real Reviews From Jackson County-Area Homeowners
“I had an energy audit done for my new home with blown in attic insulation. They showed up promptly at the appointment time. They were very professional and did great work. They added seals to my doors, caulked a lot of areas that were letting in drafts and even vacuumed when they were done. I was very impressed and would highly recommend them. I received a very thorough report with photos and additional information about my home the same day.”
View the original Angi review ↗
“Luke, Sean, and all the other guys were outstanding. The work was done in a matter of a few hours and their rates are extremely reasonable.I believe the rates are based on the size of the house and what services. The new insulation blown in the attic and knee walls are already making our home more comfortable. …”
View the original Angi review ↗
“The company was Great knowing what to do and how to do it. I would recommend them to anyone.”
View the original Angi review ↗
What You Get After a Lee’s Summit Energy Audit
After the visit you get a written report with photos of the attic and the problem spots the infrared camera found, the blower-door reading, and a ranked list of fixes. Air sealing comes first, then insulation, then extras such as rim-joist foam. Spire’s rebates page lists insulation among its offers, and we check its current terms for your address before we put a number in front of you.
Three Things Owners of Newer Lee’s Summit Homes Often Assume
“The builder already insulated it, so it’s done.”
Builders insulate to the code in force the year the permit was pulled. That layer can be uneven, thin near the eaves where the roof gets low, or disturbed by cable installers, HVAC techs and holiday-decoration storage. An attic photo set usually settles the question in a few minutes.
“More insulation will fix my hot bonus room.”
Not on its own. A room above a garage or behind knee walls gets hot mostly because outside air moves through the open floor framing and around the walls. Until those gaps are blocked and sealed, extra insulation on top barely changes how the room feels.
“A tight house can’t breathe.”
We seal the leaks you don’t want, such as attic bypasses, chases and duct boots, and keep the ventilation you do want: soffit intake, roof exhaust and bath fans ducted outdoors. The blower-door numbers before and after show how much changed, so the decision rests on measurements instead of guesses.
Lee’s Summit Services for Newer and Lake-Era Homes
1. Deep Blown-In Attic Insulation
Fiberglass or cellulose blown to a uniform depth once every ceiling penetration is closed, with eave chutes to keep soffit vents open.
Explore Attic Insulation →2. Attic Insulation Removal
If the old insulation is matted, damp or damaged by animals, we take it out with HEPA vacuums before sealing.
Explore Insulation Removal →3. BPI Air Sealing & Spray Foam
Foam and caulk where newer homes leak most: knee walls, bonus-room floors, can lights, duct boots and rim joists.
Explore Air Sealing →4. $499+ Blower-Door & FLIR Audits
Blower door plus FLIR imaging, with a written photo report and a retest when the work is done.
Explore Energy Audits →Lee’s Summit Insulation FAQs
Is the federal insulation tax credit still available in 2026?
No. The IRS says the Section 25C Energy Efficient Home Improvement Credit isn’t allowed for property placed in service after December 31, 2025.
My home is from the 1990s. What usually needs fixing?
Most often air leaks at knee walls, rooms over garages, recessed lights and the attic hatch. Some attics also need more insulation once those leaks are sealed.
Who provides electricity in Lee’s Summit?
The Missouri PSC’s locator lists Evergy Missouri West for Lee’s Summit, Spire Missouri for gas, and the city for water.