Open Every Day, Honest Every Time. Weekend Appointments Available!
Since 2000, Mainstream Electric, Heating, Cooling, and Plumbing has been your trusted partner in Spokane and Northern Idaho for reliable residential air conditioning installation.
Installing a new air conditioner is a big decision—but it doesn’t have to be stressful. At Mainstream Electric, Heating, Cooling, and Plumbing, we make air conditioner installation seamless from start to finish. Whether you’re replacing an outdated unit or planning your first central AC installation, our team delivers expert recommendations, professional service, and clear communication every step of the way. We install energy-efficient models designed to cool your home reliably while helping you save on monthly energy bills. Our licensed AC installers will evaluate your home, explain your options, and give you an honest, upfront quote before we get started. No guesswork, no hidden fees—just quality workmanship you can trust.
Welcome to Mainstream Home Services – your one-stop solution for all your electrical, heating, cooling, and plumbing needs. Here’s why you should trust us with your home services:
We respect your time and prioritize efficient communication. We ensure minimal wait times for our technicians, allowing you to spend more time enjoying your home. Expect a call before our technician arrives, giving you the flexibility to plan your day accordingly.
No surprises, no hidden costs. Our upfront pricing provides competitive quotes tailored to your specific service requirements. You'll receive a detailed breakdown of the work involved, ensuring transparency and total peace of mind.
Our friendly, skilled technicians are experts in electrical, heating, cooling, and plumbing services. With state-of-the-art tools and expertise, we guarantee precise, code-compliant work. Your home will be left spotless, reflecting our commitment to cleanliness and professionalism.
We proudly service the following cities and neighborhoods in Spokane & Northern Idaho:
Not seeing your area? Give us a call at 509-237-6483
Ready to elevate your home’s comfort? Discover a variety of services beyond heating repairs that cater to your every need. Explore the full range by clicking the links below:
Installing an air conditioner involves more than just placing a unit outside—it requires a full evaluation of your home’s cooling needs, electrical system, and ductwork (if applicable). A licensed AC installer begins by removing any old equipment, then carefully positions the new unit, connects refrigerant lines and electrical wiring, calibrates the thermostat, and tests for safe, efficient operation. At Mainstream Electric, Heating, Cooling, and Plumbing, our trained professionals follow manufacturer specifications to ensure your AC system is properly installed and built to last. We make the process seamless from start to finish, with honest recommendations and no surprises.
The cost of AC installation depends on several factors, including the size of your home, system type (central vs. ductless), energy efficiency rating, and whether ductwork needs upgrades or replacement. On average, central AC installation can range from a few thousand dollars to over ten thousand for high-efficiency models or complex projects. At Mainstream, we provide upfront, itemized estimates so you know exactly what to expect. We also offer financing options to help you get the comfort you need without stretching your budget. Our team works with you to choose the best system for your home, needs, and long-term savings.
Freon, or refrigerant, must be installed by a licensed HVAC professional using specialized tools to measure and adjust system pressure correctly. Adding too much or too little refrigerant can damage the AC system and lead to costly repairs. If refrigerant levels are low, a leak must be located and repaired before the system is safely recharged.
Adding refrigerant, commonly referred to as “Freon,” to an AC system is not a simple refill and should never be treated as a DIY project. Refrigerant operates under precise pressure levels that are specific to each system, and adjusting those levels requires specialized gauges, recovery equipment, and technical training. Even small mistakes can damage the compressor, reduce cooling performance, or cause the system to fail entirely.
One of the biggest misconceptions homeowners have is that refrigerant gets “used up” over time. In a properly functioning AC system, refrigerant circulates in a closed loop. If levels are low, it usually means there is a leak somewhere in the system. Adding refrigerant without locating and repairing that leak only provides temporary relief and can lead to repeated breakdowns, higher energy bills, and more expensive repairs later.
For Spokane homeowners, refrigerant issues often become noticeable during the summer, when AC systems run longer and harder. That increased demand doesn’t cause refrigerant loss on its own, but it does make existing leaks or pressure problems more obvious. Diagnosing those issues correctly requires both experience and an understanding of how systems perform in Eastern Washington’s climate.
Licensed HVAC professionals are also required to follow strict environmental regulations when handling refrigerant. Improper handling can release refrigerant into the air, which is harmful to the environment and illegal without proper certification.
Mainstream’s certified technicians inspect the entire AC system, verify refrigerant pressures, locate and repair leaks when present, and recharge the system only to manufacturer specifications. This ensures Spokane-area AC systems operate safely, efficiently, and reliably, without the risks that come with DIY or improper refrigerant handling.
Ductless air conditioner installation requires expert planning and precise setup. First, an indoor air handler is mounted on a wall inside the room, while a condenser unit is installed outside. The two units are connected by refrigerant and electrical lines that run through a small opening in the wall. Once connected, the system is charged, tested, and calibrated to ensure optimal comfort. Ductless systems are ideal for home additions, converted garages, or older homes without central ductwork. At Mainstream, we install ductless AC systems with minimal disruption and maximum efficiency—tailored to fit your space and your needs.
When the summer heat hits Spokane Valley, you need more than just a fan in the window—you need a dependable cooling system installed by a team you can trust. Whether you’re replacing an old, inefficient unit or upgrading to your home’s first central air system, Mainstream Electric, Heating, Cooling, and Plumbing is your go-to partner for air conditioner installation that’s done right the first time.
Every successful AC installation starts with a thorough, expert evaluation of your home’s needs. We assess square footage, insulation, existing ductwork, and system compatibility to recommend the ideal air conditioning setup for consistent cooling. Whether you’re installing central air from scratch or upgrading your existing unit, we’ll tailor the solution to your layout, usage habits, and budget.
Our team explains the process clearly, so you always know what to expect—from equipment options to installation timelines. And when it’s time to install your air conditioner, we’ll be there with the tools, training, and dedication to get the job done with minimal disruption to your day.
One of the most common concerns homeowners have is the cost of central air conditioner installation. At Mainstream, we take the guesswork out of budgeting by offering clear, upfront pricing with no hidden fees. Our team will walk you through multiple options, helping you compare efficiency ratings, brand features, and system sizes so you get the most value for your investment.
Need help managing costs? We offer financing options to make your new system more accessible. Our goal is always to help you make a confident, cost-effective decision.
Once you approve your project, our licensed and experienced AC installers handle everything. We safely remove outdated systems, properly place and connect your new unit, and ensure that it’s operating at peak performance. That includes checking airflow, refrigerant levels, electrical connections, and thermostat function—because a proper air conditioner install means more than just setting up a box outside.
We also make sure you’re fully comfortable using your new system before we go. Our team will walk you through settings, maintenance basics, and any features specific to your new unit.
During installation, we often help homeowners take advantage of related improvements like smart thermostats, system zoning, or airflow balancing. We also inspect ductwork and electrical infrastructure to ensure your system runs efficiently and safely, now and in the future.
Once your system is installed, keeping it in top shape is just as important as choosing the right one in the first place. We offer routine HVAC maintenance and seasonal tune-ups to help prevent costly breakdowns and extend your system’s lifespan. Maintenance is also key to preserving manufacturer warranties.
Ask us about signing up for Mainstream’s Care Club, our maintenance program that includes scheduled service, priority appointments, and savings on future repairs.
Not sure whether you should replace your current unit or try to keep it running a bit longer? Our team is here to give honest advice. If your system is 10–15 years old, frequently needs repairs, or drives up your energy bills, it may be time to consider installing a new air conditioner. Our team will evaluate your existing setup and give you clear recommendations with no pressure—just helpful, professional guidance.
With over two decades of service across Spokane Valley and North Idaho, Mainstream Electric, Heating, Cooling, and Plumbing has become the name homeowners trust for air conditioner installation that’s fast, fair, and built to last. We’re committed to showing up on time, respecting your home, and providing honest service every step of the way.
Whether you’re planning a new central AC installation or looking to upgrade an aging system, you can count on us to help you stay cool—without the stress.
