AC Installation in Leawood, KS
A new air conditioner in Leawood has to handle a humid Johnson County summer for the next 12 to 15 years, and the difference between a comfortable house and a clammy one usually comes down to sizing. 7th Degree Heating and Air installs cooling systems across Leawood that are sized with math, not a tonnage guess — and as a Catalina Street–based local company, we know how different Leawood’s housing really is from one neighborhood to the next.
Right-Sizing for Your Part of Leawood
This is where local knowledge earns its keep. A 1960s ranch north of I-435, with original windows and an under-insulated attic, carries a much higher cooling load per square foot than a 2015 build along the 135th or 151st corridor framed to the modern IECC envelope (R-20 walls, R-49 ceiling, U-0.32 windows). Size both by the same rule of thumb and you’ll oversize the new build — which then short-cycles and leaves it cold but damp — while possibly undersizing the old one. We run an ACCA Manual J load calculation, select equipment with Manual S, and verify the ducts with Manual D, sizing for the latent (humidity) load that defines comfort in our Climate Zone 4A.
What a Leawood Installation Includes
- Manual J load calculation specific to your home and neighborhood era.
- R-454B-compliant equipment meeting the current refrigerant standard.
- Proper condenser placement with shade and clearance for hot south-facing walls.
- Old unit removed, refrigerant recovered per EPA 608.
- Permits pulled through the Johnson County building department, warranty registered.
- Verified startup — superheat, subcooling, and airflow checked and documented.
Frequently Asked Questions
- How do you size an AC for my Leawood home?
- With a Manual J load calculation, not the size of your old unit or a square-footage rule. That matters in Leawood specifically, because an older north-of-435 ranch and a newer south-Leawood build carry very different loads. Right-sizing is what lets the system run long enough to pull humidity out instead of short-cycling.
- I have a newer south-Leawood home — why does sizing matter so much?
- Because tight, well-insulated newer homes carry a lower cooling load than their size suggests. An installer who sizes by square footage will put in too much capacity, and an oversized AC short-cycles — cooling fast, shutting off, and never running long enough to dehumidify, so the house feels cold and clammy. A Manual J calculation prevents that.
- What refrigerant will my new Leawood AC use?
- R-454B, the lower-global-warming-potential refrigerant that replaced R-410A in new residential equipment as of the 2025 transition. Installing to the current standard keeps your equipment and its parts supply supported for years.
- How long does an AC installation take?
- A straightforward replacement is usually a single day. Adding line sets, electrical changes, ductwork modifications, or switching configurations can extend it. We give you a realistic timeline with the quote.
- Do you remove my old unit?
- Yes. We recover the old refrigerant per EPA Section 608, haul away the old equipment, and handle disposal as part of the installation, not as an add-on.
Contact 7th Degree Heating and Air
Your local Leawood AC installation team, also serving Overland Park, Prairie Village, Mission, Merriam, and Lenexa with 24/7 emergency service.
- Emergency Line (24/7): (913) 354-6552
- Address: 12720 Catalina St, Leawood, KS 66209
- Email: info@7thdegreeheatingandair.xyz
- Johnson County Class “DM” Mechanical License: DM-24-11873
- EPA Section 608 Universal: EPA-608-U-457921
Office Hours
- Emergency Service: 24 hours a day, 7 days a week
- Office Staff: Monday – Saturday, 9:00 AM – 5:00 PM
- Sunday: By appointment
- Closed: Holidays (emergency line always active)