Hours: Mon-Fri 8:00am-4:30pm – 24/7 Emergency Service Available

MO: (636) 947-4111 | IL: (618) 345-8622


Do you have questions about HVAC? ARCO Bluestream Heating and Cooling can help! We want our customers to be empowered with the knowledge they need to make informed decisions about their homes. Take a look at some of our frequently asked questions below. Don’t see a question you have? Contact us today and we’d be happy to answer!

How often should I change filters?

With pets, every 30 days, without pets, every 60 days

What should I set my thermostat at for each season?

You can easily save energy in the winter by setting the thermostat to a comfortable temperature when you’re at home and awake, and lowering it to a cooler, but acceptable, temperature when you’re asleep or away. • In the summer, you can follow the same plan with central air conditioning by keeping your house warmer than normal when you are away, and lowering the thermostat setting to a more comfortable temperature only when you are at home. • If you have a programmable thermostat, you can set it to automatically make these adjustments at different times during the day to match your typical behavior and maximize your savings with a minimum amount of effort.

What benefits do I get with a club membership?

Improve indoor air quality, removes allergens and mold from equipment, detect dangerous leaks, like carbon monoxide, Optimum operation means minimize power usage, Improves efficiency of your system, Optimum operation means minimized power usage, protects your equipment, helps avoid breakdowns and system failures, prolong the life of your system, spring & fall cleaning/tuning of entire HVAC system, 15% off repairs and reduced service call fee, Priority scheduling for emergencies

How often should I get maintenance done?

Every Fall and Every spring

What are SEER ratings?

When an HVAC unit works efficiently, it will consume less energy as it makes your home feel comfortable. A factor that helps you determine an air conditioner’s efficiency is its Seasonal Energy Efficiency Ratio (SEER) rating. An A/C’s SEER rating relates how much energy and money the unit will use during operation over the course of a year. Understanding what this rating means for you before an A/C installation will help you make an informed decision about the cooling unit that best meets your needs.

How do I select the right equipment for my home?

Our Comfort Advisor will sit with you and go over the options that best suit your home.
This is free of charge.

Air Conditioner FAQ, HVAC Service Information & Furnace FAQ Lake Saint Louis, MO, Cottleville, MO, St Peters, MO, Saint Ann, MO, Hazelwood, MO & Saint Charles, MO

HVAC Service Information in Hazelwood, MO | Air Conditioner FAQ O Fallon, MO | Furnace FAQ Maryland Heights, MO

Furnace FAQHVAC Service InformationAir Conditioner FAQ ∴ Lake Saint Louis, MO ∴ Maryland Heights, MO ∴ Cottleville, MO

Top-Quality HVAC Services from ARCO Bluestream Heating and Cooling

Proudly serving Saint Charles, MO and the surrounding area and the surrounding areas.
Contact Us Today

Special Offers
Club Membership Discounts

Sign up for a club membership and enjoy 15% off major repairs, $79 service calls, priority emergency service, and 2 annual clean and tunes on your HVAC system.

Free System Evaluation and Quote

Get a free system evaluation and quote on HVAC system replacements.

$500 Off Full HVAC System Replacement
Customer Reviews

Our A/C went out on the hottest day of the year (thus far) so I called ARCO. They were able to send someone out the same day! Steve was able to diagnose the problem and fix it very very quickly and efficiently!

Jodi S.

Our experience with Arco was amazing. Robin in the office was great. She helped to get everything lined up and scheduled leaving no questions unanswered. Kris and Scott who came and did the installing were AMAZING.

Ellie K.

Great people and products, easy to do business. I replaced a window in my mobile home, and got good advice for roof and ceilings. Will be back.

Chris G.

Ballwin, MO

Florissant, MO

Chesterfield, MO