Swiss Air Heating & Cooling
(636) 978-7800
O'Fallon weatherReading the skies…
Over 1k local reviews

Save $2,500 on a new heating and cooling system

Most installs are done in one day. 0% financing for up to 60 months, or payments as low as $69 a month after estimated energy reductions. Free in-home estimate.

The equipment matters. Who installs it matters more.

Free second opinion on any written quote
Daikin outdoor unit, indoor air handler and Daikin ONE thermostat

Free in-home estimate

Book your free estimate

Tell us what you need. No obligation, and nothing is scheduled until you confirm it.

No obligation. No pressure. We will confirm your appointment within one business hour.

BBB A+ accreditedFamily-owned since 1989Authorized Daikin dealerLicensed and insured

What you get

The offer, with the conditions attached

There are two financing paths here, because a 0% buyer and a low-payment buyer want different things.

$2,500 instant rebate

Applied at the time of purchase on a qualifying full system replacement. Ask your comfort advisor for details on qualifying equipment.

0% financing for up to 60 months

For the buyer who wants the system paid off without paying interest. Financing available with qualifying credit.

Payments as low as $69 a month

After estimated energy reductions, on approved credit. Terms run up to 120 months.

12-year parts and labor warranty

Covers both parts and labor on qualifying Daikin systems. Registration is required after installation. Ask your comfort advisor for the current registration window.

You may qualify for additional utility rebates, depending on the equipment installed and your utility company. We file the rebate paperwork for you.

Second opinion

Already have a quote? Get a free second opinion.

We read the quote line by line, walk the same scope in your home, and tell you where the two differ.

It costs nothing, and you are free to take our number and go with the other company.

Bring us a written quote on comparable equipment and scope. We will match it, or tell you honestly why we cannot.

The equipment

What we install, in plain language

Daikin is the world's largest air conditioning manufacturer. Here is what that means in a Missouri house.

Daikin DX5SE outdoor condensing unit

Energy efficient technology

The system modulates instead of cycling full on and full off. You hear it less, and the back bedroom stops running five degrees warm.

Daikin FIT outdoor unit installed alongside a home

R-32 refrigerant

It has a lower environmental impact than the R-410A it replaces, and it is what new equipment is built around.

Daikin ONE connected thermostat showing 72 degrees

Daikin ONE thermostat

If you want the system on your phone, we can add it. If you do not, nobody will bring it up again.

Daikin indoor air handler

Performance and engineered comfort

The indoor half of the system. We size and match it to the outdoor unit so the pair delivers the rating on the label.

(636) 978-7800Free estimates and second opinions.

We give you a full estimate with solutions catered to you, your home, and your budget.

We measure the house, inspect the ductwork, and put options in writing at different price points.

(636) 978-7800

The visit

What the estimate actually involves

Four steps, and what happens in each one. Booking the visit does not commit you to anything.

A Swiss Air comfort advisor walking homeowners through an outdoor unit
  1. 1

    Our comfort advisor comes to your home to understand your current system

    You pick the window. We confirm it within one business hour of your request.

  2. 2

    We measure and inspect

    We know your time is valuable, so our trained advisors are efficient with the visit. Room by room load, ductwork condition, electrical, and where the equipment has to sit.

  3. 3

    You get a written quote with options at different price points

    Good, better and best, with the difference between them explained in writing.

  4. 4

    No high-pressure close. Take the quote and compare it.

    We have been in business for 36 years because we have integrity, and treat people right.

What it costs

Most full system replacements in the metro run $9,000 to $18,000

A heat pump runs $6,000 to $14,000. Where you land depends on home size, ductwork condition, and efficiency level. We publish the range because you are going to ask for it on the phone anyway.

What moves the number:

  • Square footage and how the house is laid out
  • Ductwork condition, and whether it needs sealing or resizing
  • Efficiency level and staging
  • Electrical, permits, and line set work

What customers say

Homeowners who replaced a full system

Google
Swiss Air saved us on a miserable day when our AC quit, then helped us through a full system replacement with friendly, knowledgeable service. They're the only company I'd recommend.
Brianna O.
Google
I found Swiss Air about 7 years ago when I needed a new air conditioner. Professional, well priced, reliable, excellent workmanship, the best company I've ever hired for my home.
Brian D.
Google
We've had several extraordinary experiences. Their technicians are always courteous, clean up after themselves, and respectful. Fair pricing and every staff member has been pleasant and helpful, I'd recommend them to anyone!
K. Gilda-Fry
Over 1k local reviewsRead all Google reviews

Why Swiss Air

Why the installation decides how the system performs

Sizing, ductwork, refrigerant charge and commissioning do more for system life and comfort than the nameplate does. That is where we spend our time.

Most installations are done in one day

We size the job and stage the equipment before the crew arrives, so a straightforward system replacement starts and finishes in the same visit. If yours needs more, we tell you before the day starts, not after.

We size the system to your home, not to the quote

A room-by-room load calculation, every time. Oversized equipment short cycles, and you pay for it twice.

We inspect your ductwork before we recommend equipment

New equipment on leaking or undersized duct will not deliver what it is rated for.

We service every major brand, including whatever is in your home right now

You are not stuck with us, and you are not stuck with one manufacturer.

Every install is commissioned and tested before we leave

Airflow, charge, static pressure, and temperature split measured and recorded on your paperwork.

Our promise

Guarantees you can count on

No Price Change Guarantee

The price we quote is the price you pay. No hidden fees, no mid-job upcharges.

Satisfaction Guarantee

Not satisfied? We make it right. No questions, no hassle, no charge.

No Mess Guarantee

We leave your home cleaner than we found it, or we pay for a professional cleaning.

Already have a quote from someone else?

Bring us the written quote. We read it line by line and tell you where the two differ, free.

(636) 978-7800

Straight answers

Questions homeowners ask before they replace

Ready when you are

Let us walk your home and put a real number in writing.

Save $2,500 with 0% financing. The estimate is free and the visit commits you to nothing.

(636) 978-7800