⚡ Proper HVAC × ACiQ — cutting-edge comfort for Delaware homes

Smarter heating & cooling.
Fair prices. Long warranties.

We install ACiQ's latest inverter heat pumps, mini splits, and central systems across Wilmington — advanced equipment at prices the big-name brands can't touch, backed by warranties up to 12 years.

Get a Free Quote Explore ACiQ Systems

12-Yearcompressor warranty on registered high-efficiency systems

−22°FACiQ Max Heat keeps pumping heat in extreme cold

Up to 75%energy savings vs. conventional heat below 30°F

Why Proper HVAC

Three things we refuse to compromise on

Most HVAC companies make you pick two. We built our business on all three.

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Cutting-Edge Equipment

ACiQ inverter systems self-adjust their output in real time — no blasting on and off. Variable-speed compressors, R-32 refrigerant, smart thermostats, and near-silent operation come standard, not as upsells.

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Fair, Transparent Prices

ACiQ delivers the same core technology as the premium legacy brands without the brand-name markup — and we quote flat, all-in prices up front. No commission-driven sales visits, no surprise line items.

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Long Warranties

Up to 12 years on the compressor and 7 years on parts for registered high-efficiency systems — among the longest coverage in the industry. We register every install for you, so your coverage is active from day one.

Services

What we do

Full-service installation and replacement for homes and rental properties across New Castle County.

Heat Pump Installation

High-efficiency ACiQ inverter heat pumps that heat and cool year-round — even through Delaware cold snaps. Ideal replacements for aging AC + furnace combos.

Ductless

Mini Split Systems

Single and multi-zone ductless systems for additions, garages, sunrooms, and whole homes without ductwork. Wall-mount, ceiling cassette, and concealed options.

Central

Central AC & Furnaces

Complete ducted systems — air conditioners, gas furnaces, and air handlers — sized properly for your home with a full load calculation, not a guess.

Landlords

Rental Property Programs

From the team behind Proper-T property management: multi-unit pricing, fast turnaround between tenants, and equipment chosen for durability and low service costs.

Comfort

Smart Thermostats & IAQ

ACiQ smart thermostats, ventilation, and indoor air quality equipment to round out a modern, efficient system you can control from your phone.

Replacement

System Replacement Quotes

Old system limping along? Get a free, no-pressure replacement quote with honest math on efficiency savings and available rebates.

Equipment — Powered by ACiQ

The ACiQ lineup we install

ACiQ builds simple, intelligent, quiet systems — the same inverter technology inside premium brands, at a fair price. Here's what we recommend most in Delaware.

⚡ Flagship — Extreme Package

ACiQ Extreme Heat
Inverter Heat Pump System

Our top-of-the-line package: a variable-speed inverter heat pump engineered for extreme cold, paired with a matched air handler and smart thermostat. Full heating output when Delaware winters bite — and whisper-quiet, high-SEER2 cooling all summer.

−22°F Max Heat output Inverter variable-speed R-32 refrigerant Wi-Fi smart control 12-yr compressor warranty

Price the Extreme Package Warranty details

ACiQ Extreme heat pump system — outdoor unit, matched air handler, and smart thermostat

High-Efficiency Series

Inverter Heat Pump Systems

Variable-speed inverter compressor self-adjusts to your home's load
Max Heat technology delivers full heating down to −22°F
Up to 75% energy savings vs. conventional electric heat below 30°F
Low-noise operation indoors and out

🛡️ 12-year compressor / 7-year parts (registered)

Ductless Series

Mini Splits — Single & Multi-Zone

9,000 BTU single-zone up to 55,000 BTU multi-zone systems
Wall-mount, ceiling cassette, floor, and concealed-duct air handlers
No existing ductwork required — perfect for older Wilmington homes
Whisper-quiet with wifi control

🛡️ 12-year compressor / 7-year parts (registered)

Central Series

Central AC & Heat Pumps

Ducted air conditioners and heat pumps for whole-home comfort
Matched air handlers and evaporator coils for rated efficiency
R-32 refrigerant options — next-generation, lower-impact
Drop-in replacements for aging central systems

🛡️ 10-year compressor & coil warranty

Heating Series

Gas Furnaces & Air Handlers

High-efficiency gas furnaces for reliable Delaware winters
Lifetime heat-exchanger warranty for the original owner
Pairs with ACiQ AC or heat pump for a dual-fuel setup
Quiet variable-speed blower options

🛡️ Lifetime heat exchanger (original owner)

Warranties measured in decades, not fine print

Every system we install is registered with ACiQ on your behalf by an EPA-certified installer — the two conditions that unlock full coverage. You get the paperwork; we handle the process.

Ask about warranty coverage

12 yrcompressor — high-efficiency & mini split systems

7 yrparts — registered high-efficiency systems

10 yrcompressor & coil — central AC / heat pumps

Lifetimefurnace heat exchanger — original owner

Free Quote

Get your flat-rate quote

Tell us about your home and what you need. We'll follow up within one business day with straight answers and an all-in price — no sales pressure, no obligation.

Prefer to talk?

📞 (302) 824-3111

✉️ info@leaseproper.com

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Smarter heating & cooling.Fair prices. Long warranties.