HVAC Services in Littleton, CO
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FAQ: What to know before you book
How fast can I get service?
If you call before 3:30 p.m., we’ll do our best to get someone out today.
How long have you been around?
Since 1977. We’re still a local HVAC company, still family-owned.
Is your work guaranteed?
Yes. Every repair and installation comes with a full satisfaction guarantee. New systems include up to 10 years of warranty coverage.
How do I know if I need a repair or a replacement?
If your equipment is under 15 years old, we’ll fix it when it makes sense. If it keeps breaking down or your energy bills are high, we’ll walk you through smarter options.
What are signs I need HVAC help?
Look for uneven temps, loud noises, high bills, strange smells, or weak airflow. These usually mean something’s wrong.
HVAC Financing
Family Membership
Trusted, Award-Winning Air Conditioning and Heating Services
Customer Education
Our team prefers to educate our customers in a thoughtful way, so you receive the most accurate solution. All services are tailored to your needs without any upselling, gimmicks, or surprises at the end.
Award-Winning Workmanship
We’re proud to provide our customers with the highest service quality on every call. In fact, we’ve won awards for it, including the Bryant Medal of Excellence.
Fast Response
Your calls are greeted by our in-house staff, who will schedule you for immediate service. Same-day service is available for most emergencies so you rarely have to wait to get your problem under control.
Client Reviews
Don’t let comfort problems wait
We respond fast and give you honest advice, whether it’s a simple AC repair or a full replacement.
Why people trust our HVAC company
- Serving Colorado homes for 45+ years
- Same-day repair when available
- No after-hours or surprise fees
- Licensed and background-checked techs
- Clear pricing, no pressure
- We repair first, replace when needed
- Flexible financing for installations
- 100% satisfaction guaranteed
Photo and info sent before we arrive
AC & heating built for your home
We work with air conditioners, furnaces, heat pumps, smart thermostats, garage heaters, and more. Whether your space is older with airflow issues or newer with high-efficiency goals, we’ll design a system that fits.
AC repair done the right way
If your AC isn’t cooling or starts making funny noises, better to take care of it sooner than later. When you call us for repair jobs, we don’t just swap parts. We troubleshoot the entire setup to prevent future problems.
Most AC repairs can be completed in one visit, and we never charge extra for evening service.
Heating installation that works all winter
When it’s time for a new heater, the install matters more than the model. We size your equipment carefully, set up airflow properly, and check every detail before we leave.
We install gas and electric furnaces, heat pumps, and garage heaters. Every heating installation includes full warranty coverage and your first year of maintenance at no cost.
Maintenance keeps things simple (and saves money, too)
Regular maintenance helps your HVAC last longer, run cleaner, and use less energy. It also helps you avoid expensive repairs.
We recommend spring tune-ups for AC and fall checkups for heating. If you have a heat pump, we’ll keep it in top shape with biannual visits.
Call today for trusted HVAC service
Whether you need AC repair, a new heating installation, or seasonal maintenance, we’re ready to help. Call us to schedule your visit or request a free estimate. No pressure, just honest service from a company that’s been doing it right for decades.
Service Areas
Sanders & Johnson serves the entire Denver metro area and surrounding communities.
- Aurora
- Black Hawk
- Breckenridge
- Brighton
- Denver
- Dillon
- Evergreen
- Frisco
- Georgetown
- Littleton
- Parker
- Silverthorne
- Westminster
- Wildernest
Other Cities We Serve
- Englewood
- Northglenn
- Broomfield
- Golden
- Park Hill
- Castle Rock
- Greenwood Village
- Superior
- Centennial
- Highlands Ranch
- Cherry Creek
- Lakewood
- Washington Park
- Cherry Hills
- Lone Tree
- Morrison
- Wheat Ridge
- Thornton
HVAC Guides
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The Ultimate Guide to Finding the Best Air Conditioner for Your Home
Finding the perfect air conditioner for your home can make a world of difference in creating a comfortable and cool environment during those hot summer months. With so many options available in the market, it’sRead more "The Ultimate Guide to Finding the Best Air Conditioner for Your Home"
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Does Your Air Conditioner Make the Air Too Dry?
Understanding the Effects of AC Units on Home Humidity Levels Dealing with Colorado’s Dry Air With our high elevation and central location within the United States, Colorado has a unique climate. We enjoy cool andRead more "Does Your Air Conditioner Make the Air Too Dry?"
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Dirty and Damaged Air Conditioning Coils
Dirty or damaged air conditioning coils can force your air conditioning or heat pump unit to work way harder than it’s accustom to putting additional stress on the system. But Sanders & Johnson Heating and AirRead more "Dirty and Damaged Air Conditioning Coils"
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Common A/C Problems: Faulty AC Wiring
Having problems with faulty wiring in your air conditioning unit can be hazardous. There are a few indications of bad wiring that you can look for and determine whether it is time to have itRead more "Common A/C Problems: Faulty AC Wiring"
