Air Conditioning Services

AC Installation in Nampa & the Treasure Valley

Ready for a new air conditioner? ACFLEX Mechanical Services helps you choose the right system, sizes it correctly for your home and installs it right the first time — so you stay cool all summer.

Get an Estimate Call (208) 202-8297

Upfront Pricing Financing Available All Makes & Models Licensed & Insured

A New Air Conditioner, Done Right

When Treasure Valley summers climb into the high 90s and past 100°F, your air conditioner can't be an afterthought. A new system should keep your home comfortable for the next 12–15 years — and the quality of the installation matters just as much as the equipment itself.

We walk you through your options in plain language, give you an upfront price and handle the installation from start to finish.

Cooling Systems We Install

Central Air Conditioners

A split system with an outdoor condenser that cools your whole home through your existing ductwork. Pairs with your current furnace.

Best for: Homes with ductwork and a gas furnace.

Heat Pumps

Cools like an air conditioner in summer and heats your home in winter — one efficient system for year-round comfort.

Best for: Replacing your AC and getting efficient heat too.

Ductless Mini-Splits

Zoned cooling without ductwork. Great for additions, bonus rooms, garages, shops and upstairs rooms that never cool down.

Best for: Homes without ducts, or problem rooms.

Two-Stage & Variable-Speed AC

Premium systems that adjust output to match the day — running quieter, more evenly and more efficiently than single-stage units.

Best for: Maximum comfort, quiet operation and lower bills.

Is It Time for a New AC?

Your AC is 12–15+ years oldOlder systems lose efficiency and are more likely to fail mid-summer.

It uses R-22 refrigerantR-22 has been phased out, making recharges expensive and repairs harder to justify.

Repairs keep adding upIf you're calling for service every summer, a new system may cost less long term.

Summer power bills keep climbingAn aging AC runs longer and uses more electricity for the same comfort.

Some rooms never cool downHot upstairs rooms and uneven temperatures can mean a worn-out or wrong-sized system.

Your home doesn't have central ACTired of window units or a swamp cooler? We can add central air or a mini-split.

Why Proper Sizing Matters

An oversized AC cools too fast, shuts off before it removes humidity and wears out sooner. An undersized one runs all day and still can't keep up on 100° afternoons. We size every system to your actual home — not a guess based on the old unit.

Home size, layout and insulation
West-facing windows and afternoon sun
Ductwork size and condition
Your comfort goals and budget

Understanding AC Efficiency

Air conditioner efficiency is measured by SEER2 — the higher the number, the less electricity it takes to cool your home. Here's how the main options compare:

Standard Efficiency

Single-Stage

13.4–15 SEER2

Lower upfront cost
Runs at full power whenever it's on
A solid, reliable choice for many budgets

High Efficiency

Two-Stage / Variable

16+ SEER2

Lower summer power bills
Quieter, more even cooling
Pays off over time in hot Idaho summers

Our Installation Process

In-Home Estimate

We look at your home, current system and ductwork, and talk through your goals.

Clear Options

You get recommended options with upfront pricing — no pressure, no surprises.

Professional Install

Our team installs your new system cleanly and to code, protecting your home as we work.

Test & Walkthrough

We test everything, show you how it works and make sure you're comfortable before we leave.

Flexible Financing Available

Get the cooling you need now with affordable monthly payments. Ask about utility rebates that may apply, too.

See Financing Options

AC Installation Across the Treasure Valley

Nampa Boise Meridian Caldwell Kuna Eagle Star Middleton McCall Cascade

See our full Treasure Valley service area, or if your current AC just needs a fix, visit our AC repair page.

AC Installation FAQs

How long does an AC installation take?

Most straightforward replacements are completed in about a day. Bigger projects — like adding central air to a home that's never had it, installing a mini-split system or modifying ductwork — can take longer. We'll give you a clear timeline with your estimate.

How much does a new air conditioner cost?

It depends on the type of system, efficiency level, your home's size and any ductwork or electrical changes. After a quick look at your home, we'll give you upfront pricing on your options, plus financing if you need it.

Should I get a central AC or a heat pump?

If you have a gas furnace in good shape, a central AC is a straightforward choice. If you'd like efficient heating too, a heat pump cools in summer and heats in winter. We'll recommend what fits your home and budget.

Can you add central air to a home that doesn't have it?

Often, yes. If your home has a furnace with ductwork, adding central AC is usually simple. If there's no ductwork, a ductless mini-split system is a great alternative.

Do you offer financing for new AC systems?

Yes. Financing options are available for new air conditioning installations. Visit our financing page or ask during your estimate.

Get Started

Ready for a New Air Conditioner?

Tell us about your home and the ACFLEX team will help you find the right fit — with upfront pricing and no pressure.