Expert AC Installation
Experience Comfort with Spokane’s HVAC Experts
Top HVAC Services
Depend on Us for Your Heating and Cooling Needs
- Schedule 24/7 - we're here when you need it most!
- Certified Technicians - licensed & insured
- Quick Repairs - done right!
- Quality Service - you'll love!
SPECIAL OFFERS
Mainstream Savings & Offers
$89 A/C Maintenance Checkup
Expires: 06/30/2025
Up to $2,500 Off a New HVAC System
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25% Off Select Purifiers & Filters
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New HVAC Systems from $99/Month
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Refresh Your Home This Spring with Our Comprehensive Health Package
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$50 Off Any Service
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Schedule Your Service- Give Us a Call!
Mainstream Isn't Just AC Installation
Instant peace of mind with our emergency HVAC services—because comfort can’t wait.
Extend the life of your system and improve efficiency with our comprehensive maintenance services.
Like most people, you might not think much about your plumbing – until something happens.
Your drains are nearly invisible, but far from invincible. We’re here to help keep things flowing.
Our electricians will help get the lights turned on in thousands of Spokane area homes.
Expert AC Installation
Frequently Asked Questions
What AC services does Mainstream offer?
Mainstream offers a full range of AC services to keep your home cool and comfortable year-round. That includes:
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AC repair and emergency service
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Air conditioner maintenance and cleaning
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AC condenser replacement
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Full air conditioner replacement and installation
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Smart thermostat upgrades
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System diagnostics and tune-ups
Whether you need a quick fix, a full system replacement, or routine air conditioner servicing, we’re ready to help—24/7, across Spokane and North Idaho.
AC condenser replacement
Full air conditioner replacement and installation
Smart thermostat upgrades
System diagnostics and tune-ups
Whether you need a quick fix, a full system replacement, or routine air conditioner servicing, we’re ready to help—24/7, across Spokane and North Idaho.
How often should I service my air conditioner?
We recommend servicing your air conditioner at least once a year, ideally in the spring before the summer heat sets in. Annual maintenance helps prevent breakdowns, keeps your system running efficiently, and may be required to maintain your warranty. With Mainstream’s Care Club, you get scheduled seasonal service and priority support—making it easier than ever to stay on top of your AC’s performance year-round.
How do you service an air conditioner?
Air conditioner servicing includes inspecting and cleaning key components, checking refrigerant levels, testing electrical systems, and ensuring proper airflow. While homeowners can change filters and clear debris around the unit, a licensed technician is needed for full servicing. At Mainstream, our detailed AC tune-up includes coil cleaning, thermostat testing, capacitor checks, and clearing the condensate drain line—everything your system needs to run efficiently and reliably.
How much does AC service cost?
The cost of AC service depends on the type of work needed. Routine maintenance and system checkups are typically affordable, while repairs or replacements vary based on parts, labor, and system size. At Mainstream Electric, Heating, Cooling, and Plumbing, we believe in upfront, transparent pricing—so you’ll always know the cost before any work begins. We also offer financing options to make larger repairs or upgrades more manageable for Spokane homeowners.
Does a new air conditioner condenser come charged with refrigerant?
Most new AC condensers come pre-charged with refrigerant, but the amount included is based on a factory-standard length of refrigerant line. If your system requires a longer line set or has custom needs, additional refrigerant may need to be added during installation. That’s why it’s important to have a licensed HVAC technician, like those at Mainstream, perform the installation—we ensure your system is properly charged, balanced, and tested for efficient performance.
How much does a condenser cost for an air conditioner?
The cost of a new AC condenser can vary depending on the size of your system, the model, and whether it’s part of a high-efficiency setup. Homeowners can typically expect prices to range from a few hundred dollars for smaller units to a few thousand for larger, premium models—plus labor. At Mainstream, we provide clear, upfront pricing with no surprises. We’ll also help you compare options and determine whether AC condenser replacement or full system replacement is the best long-term investment.
Where should the AC condensate drain line go?
Your AC condensate drain line should route to a safe discharge location outside your home—typically near the foundation, a dedicated drainage system, or a floor drain in a utility area. The key is to ensure it drains away from your home’s structure and remains clear of blockages to prevent water damage or mold growth. When we replace or service an AC condensing unit, Mainstream always inspects the condensate drain to ensure it’s properly placed and flowing freely.
What is an AC condenser?
An AC condenser is the outdoor component of your cooling system that releases the heat collected from inside your home. It works with the compressor and coils to complete the refrigeration cycle that cools your indoor air. Without a properly functioning AC condenser unit, your system can’t cool your home effectively, and may even shut down to prevent further damage. That’s why timely inspection, maintenance, and AC condenser replacement are so important.
How do you clean an AC condenser?
Cleaning an AC condenser involves removing debris from around the unit, gently rinsing the coils with water, and using a fin comb or brush to straighten bent fins. While homeowners can clear leaves and dirt from the outside, internal cleaning—especially of the coils and electrical components—should be handled by a professional to avoid damaging your system. At Mainstream Electric, Heating, Cooling, and Plumbing, we include condenser inspections and cleaning as part of our AC maintenance services, helping keep your system efficient and protected year after year.
What does AC maintenance include?
Professional AC maintenance covers a detailed checklist of tasks that ensure your system is working safely and efficiently. At Mainstream, our technicians inspect electrical connections, test thermostat accuracy, clean evaporator and condenser coils, check refrigerant levels, flush the drain line, and more. These routine services help lower energy bills, reduce breakdowns, and extend the life of your air conditioner. We’ll also explain what we find and help you make informed decisions about your system.
How much does air conditioner maintenance cost?
The cost of air conditioner maintenance depends on the size and condition of your system, but most annual tune-ups are affordable—especially when compared to the cost of emergency repairs or system replacement. At Mainstream, we offer transparent pricing and maintenance plans designed to save you money over time. Our Care Club includes regular maintenance visits, priority scheduling, and discounts on repairs, making it the smart way to protect your home’s comfort.
How often should air conditioner maintenance be done?
We recommend scheduling air conditioner maintenance at least once a year—ideally in the spring before the summer heat sets in. Annual AC service helps catch small problems before they become major breakdowns, keeps your system running efficiently, and helps extend its lifespan. If you’re part of our Care Club, you’ll receive regular reminders and seasonal tune-ups so you never miss the ideal service window.
