Air Conditioning Installation in Gresham, OR

When the sun’s out and the heat rolls into Gresham, OR, a dependable air conditioner isn’t a luxury, it’s a necessity. And if your old system’s been limping along, struggling to cool your home, or simply refuses to turn on, it might be time to consider a new AC installation.

At Sunset Heating, Cooling, Electrical & Plumbing, we know that replacing an air conditioner is a big decision. You want a system that’s efficient, built to last, and installed by a team that knows what they’re doing. That’s where we come in. With over 100 years in the business and a strong reputation for delivering top-notch cooling services, we make the whole air conditioning installation process easy and worry-free.

From choosing the right AC system to clean, careful installation and beyond, we’ve got your back.

Need a New Air Conditioning System Installed? Here's What Sunset Will Do For You!

If you’re thinking about air conditioning installation or replacement, you probably have a few questions, and maybe even a few concerns. That’s normal. Our job is to make the process straightforward, transparent, and hassle-free from start to finish.

Here’s what to expect when you work with Sunset for AC installation services in Gresham.

Home Comfort Assessment

We begin with a full evaluation of your home. That includes square footage, insulation levels, sun exposure, window placement, and existing ductwork. This helps us determine the best air conditioning system for your needs, not just what fits, but what performs efficiently and keeps you comfortable.

System Sizing & Recommendations

Bigger isn’t always better when it comes to AC units. If your system is oversized or undersized, it won’t cool evenly and will waste energy. Our HVAC technicians will calculate the proper load to make sure your new AC unit matches your home’s demands, and we’ll explain your options clearly.

Product Selection & Quote

Once we’ve sized the system, we’ll help you choose the best brand and model for your needs, whether you're leaning toward a traditional central AC, a ductless mini-split, or a heat pump installation. We provide an upfront, no-surprises quote so you can make a confident decision.

Scheduled Installation Day

We work around your schedule. On the day of your AC installation, our team shows up on time, ready to work. We’ll protect your floors, respect your space, and keep the noise and disruption to a minimum while we get everything set up.

Professional Installation

Our licensed, insured technicians remove your old unit, prep the site, and install your new system with expert care. We handle refrigerant lines, electrical hookups, thermostat integration, and ductwork adjustments if needed. Every connection is tested, and every component is checked for safety and performance.

Final Walkthrough & System Test

We finish every job by running a full system test. That means verifying airflow, checking temperatures, and calibrating your thermostat. We’ll also walk you through how to operate your new AC system and answer any questions you have about care, use, and air conditioning maintenance.

When we’re done, the only thing you’ll notice is how cool and comfortable your home feels.

Limited-Time Offers

Electrical

$500 Off New Electrical Panel

Plumbing

Up to $500 Off - Whole Home Water Repipe

General

Up to $500 Off - Whole Home Attic Insulation

AC Systems We Install for Gresham Homeowners and Businesses

Every home and business in Gresham is a little different. That’s why we offer a range of air conditioning systems to suit your space, lifestyle, and energy goals.

Central AC Systems

Central air conditioners are still the most common cooling option in Gresham homes. These systems are ideal for properties with existing ductwork and can efficiently cool your entire house from one central location. Today’s central ACs are quieter, smarter, and much more energy-efficient than older models, especially those with variable-speed fans and advanced SEER ratings. If your current unit is more than 10 years old, you’ll likely notice a big difference in cooling power and monthly savings with a new AC installation.

Heat Pumps

Heat pumps are a great option if you’re looking for both heating and cooling in one system. They use electricity to move heat rather than generate it, making them incredibly efficient, especially in Oregon’s mild climate. A heat pump installation is ideal for homeowners who want a greener, year-round comfort solution and don’t rely on gas heating.

Mini-Splits

If you don’t have ductwork or want to cool specific areas of your home (like a garage, finished attic, or add-on), ductless mini-splits are a flexible and efficient option. These compact systems are quiet, easy to install, and offer independent temperature control in each zone. We specialize in ductless mini-split installation for homes and businesses across Gresham.

Whatever system you choose, our team will make sure it’s the right fit—for your space, your budget, and your comfort.

Brands We Install

We work with trusted names in air conditioning services, offering equipment known for quality, innovation, and energy savings. We’ll help you choose from:

  • Carrier
  • Trane
  • Lennox
  • Daikin
  • Mitsubishi
  • Goodman
  • American Standard
  • Rheem
  • And more

Not sure which brand is best? We’ll explain the differences and help you make the right call based on your needs, preferences, and budget.

Will a New Air Conditioner Help Me Save on Energy Bills?

Yes. If you’re replacing an older system, you’re likely to see immediate savings. Modern AC units are designed with energy efficiency in mind, especially those with high SEER ratings (Seasonal Energy Efficiency Ratio). A higher SEER means less energy used to produce the same amount of cooling.

When installed properly, a new system will cool your home more effectively while consuming less electricity. That means more comfort, better indoor air quality, and lower monthly energy bills, a win all around.

Frequently Asked Questions about Air Conditioning Installation in Gresham, OR

If you’re not sure whether you need an AC repair or full air conditioning replacement, here are a few signs it might be time to upgrade: It’s more than 12–15 years old Frequent breakdowns and costly repairs Uneven cooling throughout the home Weak airflow or constant short cycling High energy bills with no increase in usage Uses outdated refrigerant (like R-22) Loud noises or unpleasant odors If you’re nodding along to a few of these, it’s probably time to think about air conditioning replacement.
Most AC installations take about one full day from start to finish. But the total time can vary based on a few key factors: System Type: A standard central AC system is usually quicker to install than a ductless mini-split with multiple indoor units or a heat pump system that may require both indoor and outdoor components to be upgraded.
Pricing for air conditioning installation in Gresham, OR, depends on a few important variables. Here’s what can increase your total investment: System Size: Larger homes require more powerful AC units, which cost more to purchase and install. We size systems carefully to avoid under- or over-cooling.
Choosing the right AC system is about more than just price. Here are a few factors to consider: Home Size & Layout: The square footage and layout of your home play a huge role in choosing a system. Multi-story homes may benefit from zoned cooling or mini-split systems, while single-level homes often pair well with central AC.
No need to worry about disposal—we’ve got it covered. When you schedule an AC replacement with us, we’ll safely remove and recycle your old unit according to EPA and local guidelines. That includes responsibly handling refrigerants, metal components, and electronic waste. We leave your home clean, cool, and clutter-free.

Financing Options Available

Don’t put your home comfort on hold while you save up. Sunset HVAC has flexible financing options to get the service you need now, subject to credit approval. Apply today and breathe easy. 

100 Years in Business

Home of the 100% money back guarantee and 0% financing

For over 100 years, Sunset has provided trusted heating and cooling solutions throughout the Portland area, keeping families and businesses comfortable in every season. Built on a foundation of service, innovation, and community dedication, we continue to lead the industry with unwavering commitment to quality and integrity.

Portland Air Conditioning, Heating, Plumbing and Electrical Services

From emergency repairs to full system installs, Sunset keeps your home comfortable, efficient, and worry-free.

What Portland Homeowners Say About Us

How Sunset Heating, Cooling, and Electrical gets it Done

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1. Request a Service Visit From Us

You’ll get quick turnaround and a schedule you can count on. Reach out by phone or book online whenever it’s convenient.

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2. Get Upfront Pricing Options​

A licensed tech will find the problem and give you a clear estimate before anything starts. Straight pricing with no surprises.

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3. Relax While We Repair Your Problem

We get each repair done quickly and correctly the first time, so you can sit back and not worry about a callback.

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4. Let Us Know How We Did

Great service is our promise, and it’s covered by a 100% guarantee. Once the repair is finished, we’d love to hear how it went.

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