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TRUSTED BY MERCER ISLAND, WA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon1.7k+
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Mercer Island

Avatar for Ares Comfort Systems

Ares Comfort Systems

4.88(
8
)
Approved Pro

Ares Comfort Systems

4.88(
8
)
Approved Pro
Super Service Award
Customers say: Quality work
259 local quotes requested
1 years of experience

Ares Comfort Systems is a local owned and operated small business. We are focused on residential Heating and Cooling in the Greater Puget Sound Area. As a collection of friends and family who started this company we believe in doing what’s best for our clients not what’s best for us. We believe everyone should feel comfortable in their own home. After all “We fight for your comfort”!

"These guys are amazing 👏. They accomodated an emergency request for a new furnace and heatpump system, pricing was not only competitive, but frankly a better deal overall. They were communicative, punctual, thorough, friendly, and I wish I had hired them the first round for our other home. Glad we found them!"

Tammy _ on October 2025

Ares Comfort Systems is a local owned and operated small business. We are focused on residential Heating and Cooling in the Greater Puget Sound Area. As a collection of friends and family who started this company we believe in doing what’s best for our clients not what’s best for us. We believe everyone should feel comfortable in their own home. After all “We fight for your comfort”!

"These guys are amazing 👏. They accomodated an emergency request for a new furnace and heatpump system, pricing was not only competitive, but frankly a better deal overall. They were communicative, punctual, thorough, friendly, and I wish I had hired them the first round for our other home. Glad we found them!"

Tammy _ on October 2025


Avatar for Innovation HVAC, LLC

Innovation HVAC, LLC

5.00(
3
)
Approved Pro

Innovation HVAC, LLC

5.00(
3
)
Approved Pro
2 years of experience
Free onsite estimate

At Innovation-HVAC, we believe in providing our customers with honest and thorough evaluations of their heating and cooling systems. We offer affordable hvac services. Here’s how our approach can help you save money Efficiency Analysis: We assess the efficiency of your current system and suggest improvements or replacements if necessary. An efficient HVAC system consumes less energy, leading to lower utility bills. Preventive Maintenance: Regular maintenance can prevent costly repairs and extend the lifespan of your system. We provide routine check-ups to ensure your system is running smoothly. Optimal System Design: If a new installation is needed, we design the system to meet your specific needs. This avoids overspending on unnecessary capacity. you can call 24/7 206-503-6055

"Innovation HVAC did an absolutely amazing job replacing my heat pump. What I loved most was how communicative they are. When I received my quote it didn?t seem like I was getting upsold and charged more than I needed to be compared to other companies. I highly recommend them to everyone and I will be hiring them again for any future project"

Ashley A on February 2025

At Innovation-HVAC, we believe in providing our customers with honest and thorough evaluations of their heating and cooling systems. We offer affordable hvac services. Here’s how our approach can help you save money Efficiency Analysis: We assess the efficiency of your current system and suggest improvements or replacements if necessary. An efficient HVAC system consumes less energy, leading to lower utility bills. Preventive Maintenance: Regular maintenance can prevent costly repairs and extend the lifespan of your system. We provide routine check-ups to ensure your system is running smoothly. Optimal System Design: If a new installation is needed, we design the system to meet your specific needs. This avoids overspending on unnecessary capacity. you can call 24/7 206-503-6055

"Innovation HVAC did an absolutely amazing job replacing my heat pump. What I loved most was how communicative they are. When I received my quote it didn?t seem like I was getting upsold and charged more than I needed to be compared to other companies. I highly recommend them to everyone and I will be hiring them again for any future project"

Ashley A on February 2025


Avatar for Smart Electric, Heating & Air

Smart Electric, Heating & Air

4.93(
61
)
Approved Pro

Smart Electric, Heating & Air

4.93(
61
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
306 local quotes requested

We are a family-owned and operated business dedicated to the highest standards of workmanship, safety, and customer service. We specialize in home remodels, new construction, knob-and-tube rewires, smart home automation, generator installation, as well as general home electrical needs. We have extensive experience in helping our customers design home electrical layouts and features to best meet their needs and budgets. No job is too big or small for our team - we just love what we do!

"Gosh, i just can't say enough good things. I needed to have some dedicated outlets installed in our garage and also to have our circuit box looked as since I was convinced they whole thing needed to be replaced due to the age of our house. I reached out to several different companies who were either months out, never responded or no-showed completely. Joseph called me back ASAP, admitted he was booked out but asked me to text him photos of the areas of concern. He quoted me based on the photos and then came out quickly since it was a job with a quick turnaround. He was super friendly, knowledgeable and funny. The work was done in short time and he even looked at a potential hazard and remedied that for me. Good professionals are hard to find and I am so glad to now add a fantastic electrician to our home improvement arsenal."

Tera P on November 2020

We are a family-owned and operated business dedicated to the highest standards of workmanship, safety, and customer service. We specialize in home remodels, new construction, knob-and-tube rewires, smart home automation, generator installation, as well as general home electrical needs. We have extensive experience in helping our customers design home electrical layouts and features to best meet their needs and budgets. No job is too big or small for our team - we just love what we do!

"Gosh, i just can't say enough good things. I needed to have some dedicated outlets installed in our garage and also to have our circuit box looked as since I was convinced they whole thing needed to be replaced due to the age of our house. I reached out to several different companies who were either months out, never responded or no-showed completely. Joseph called me back ASAP, admitted he was booked out but asked me to text him photos of the areas of concern. He quoted me based on the photos and then came out quickly since it was a job with a quick turnaround. He was super friendly, knowledgeable and funny. The work was done in short time and he even looked at a potential hazard and remedied that for me. Good professionals are hard to find and I am so glad to now add a fantastic electrician to our home improvement arsenal."

Tera P on November 2020


Avatar for Day & Nite Plumbing & Heating, Inc.

Day & Nite Plumbing & Heating, Inc.

4.41(
201
)
Approved Pro

Day & Nite Plumbing & Heating, Inc.

4.41(
201
)
Approved Pro
Customers say: Quick response
70 local quotes requested
71 years of experience

Your local Family owned & operated Plumbing, Heating, and Cooling Company since 1954. OUR MISSION: "Dedicated to providing the highest quality, most professional services for your home and business with unsurpassed Value, Innovation, and Integrity." As a Factory Authorized Bryant Dealer, we are proud to offer the latest in innovation and technology when it comes to to comfort in your home. Not only do we work on all brands of Furnaces, A/C, Heat Pumps, & Boilers we also can design the best solution for your home and family when it comes time to replace your equipment. Our Plumbing division is just as innovative. From simple repairs to complete repipes. We also offer the latest in technology when it comes to designing the best solution for the needs of your home. With weekly training weather its a repair, drain cleaning, tankless water heater or replacing a water line without digging a trench our technicians are prepared to offer the right solution. Check us out at the Better Business Bureau and visit our website at www.dayandnite.net.

"Very expensive and overprice, just to change an Outdoor Garden Faucet that cost $32 at Home Depot, I paid $694.99, this is what you call HIGHWAY ROBBERY."

Bert C on June 2025

Your local Family owned & operated Plumbing, Heating, and Cooling Company since 1954. OUR MISSION: "Dedicated to providing the highest quality, most professional services for your home and business with unsurpassed Value, Innovation, and Integrity." As a Factory Authorized Bryant Dealer, we are proud to offer the latest in innovation and technology when it comes to to comfort in your home. Not only do we work on all brands of Furnaces, A/C, Heat Pumps, & Boilers we also can design the best solution for your home and family when it comes time to replace your equipment. Our Plumbing division is just as innovative. From simple repairs to complete repipes. We also offer the latest in technology when it comes to designing the best solution for the needs of your home. With weekly training weather its a repair, drain cleaning, tankless water heater or replacing a water line without digging a trench our technicians are prepared to offer the right solution. Check us out at the Better Business Bureau and visit our website at www.dayandnite.net.

"Very expensive and overprice, just to change an Outdoor Garden Faucet that cost $32 at Home Depot, I paid $694.99, this is what you call HIGHWAY ROBBERY."

Bert C on June 2025


Avatar for Mr. Handyman of SE Bellevue

Mr. Handyman of SE Bellevue

4.69(
297
)
Approved Pro

Mr. Handyman of SE Bellevue

4.69(
297
)
Approved Pro
Customers say: Super punctual
258 local quotes requested
21 years of experience

Mr. Handyman takes great pride in providing the best service in the industry. We do it by answering our phones, scheduling on-time appointments, providing the best skilled employee technicians in the area and guaranteeing our work. No Subcontractors. Over 70% of our work is provided to repeat and referral customers including many Angie’s List customers. We look forward to earning the privilege of being your regular home repair, maintenance and improvement company. Locally owned and operated.

"Helpfully diagnosed our issue."

Elizabeth P on February 2021

Mr. Handyman takes great pride in providing the best service in the industry. We do it by answering our phones, scheduling on-time appointments, providing the best skilled employee technicians in the area and guaranteeing our work. No Subcontractors. Over 70% of our work is provided to repeat and referral customers including many Angie’s List customers. We look forward to earning the privilege of being your regular home repair, maintenance and improvement company. Locally owned and operated.

"Helpfully diagnosed our issue."

Elizabeth P on February 2021


"Great job "

Kathryn M on November 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Great job "

Kathryn M on November 2025


Avatar for Greenwood Heating and Home Services

Greenwood Heating and Home Services

4.70(
382
)
Approved Pro

Greenwood Heating and Home Services

4.70(
382
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
61 local quotes requested

Greenwood Heating and Home Services is your one stop shop for all your mechanical needs, Heating, Air Conditioning, Electrical and Plumbing. We do it all! Repair, replace or maintain, all with our 100% Customer Satisfaction Guarantee. We have operated for over 100 years in the Greater Seattle area, and we locally owned and operated. Our team follows our Core Values of, Pride, Professionalism, Communication, Safety and Integrity. We focus on training our technicians to do things right the first time in our state of the art Training Center in Tukwila. When we complete the work in your home “You’ll Never Want to Leave the Comfort of Home!”

"Our Greenwood Technician, Sam, really provides us assurance that our gas furnace is still functioning adequately, but detailed why it may be time to consider replacing our aging water heater and furnace water pump system before likely damage occurs. Sam is a most genuine and reassuring professional - He helps us know just what may need maintenance and what is still sound. It is a joy to work with a trustworthy and competent professional "

John M on November 2025

Greenwood Heating and Home Services is your one stop shop for all your mechanical needs, Heating, Air Conditioning, Electrical and Plumbing. We do it all! Repair, replace or maintain, all with our 100% Customer Satisfaction Guarantee. We have operated for over 100 years in the Greater Seattle area, and we locally owned and operated. Our team follows our Core Values of, Pride, Professionalism, Communication, Safety and Integrity. We focus on training our technicians to do things right the first time in our state of the art Training Center in Tukwila. When we complete the work in your home “You’ll Never Want to Leave the Comfort of Home!”

"Our Greenwood Technician, Sam, really provides us assurance that our gas furnace is still functioning adequately, but detailed why it may be time to consider replacing our aging water heater and furnace water pump system before likely damage occurs. Sam is a most genuine and reassuring professional - He helps us know just what may need maintenance and what is still sound. It is a joy to work with a trustworthy and competent professional "

John M on November 2025


Avatar for Seatown Electric Plumbing Heating & Air

Seatown Electric Plumbing Heating & Air

4.79(
1,338
)
Approved Pro

Seatown Electric Plumbing Heating & Air

4.79(
1,338
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
2000 local quotes requested

As a provider of essential services here in the Puget Sound Region, Seatown Electric Plumbing Heating & Air remains open to serve you. To ensure the safety of our customers our technicians' health is monitored closely and we are following the highest safety recommendations, including the use of masks and protective gloves. The health and wellness of our customers and employees will always come first. We are here for you! Seatown provides Electrical, Plumbing, Heating, and A/C services in the Greater Puget Sound region, concentrating in King and Snohomish county. With our customer satisfaction guarantee, you can rest assured that your system will outlast industry standards, providing safety, and comfort for your home, for many years to come. You will never have to search for a new electrical, plumbing or heating and air contractor again. That is our promise. Seatown continues to lead Angie's List, with overall "A" reviews, by serving one customer at a time and giving top-notch service. We hope to build long-lasting customer relationships, throughout Washington State. Our world-class technicians will show up to your door in clean uniforms, with visible ID and state certification, trained to over-exceed your expectations, and never leaving a mess behind. We are Seatown Electric Plumbing Heating And Air, Washington's all in one contractor.

"The employee called me a sandn*gger. Do not hire these ppl."

Matt R on October 2025

As a provider of essential services here in the Puget Sound Region, Seatown Electric Plumbing Heating & Air remains open to serve you. To ensure the safety of our customers our technicians' health is monitored closely and we are following the highest safety recommendations, including the use of masks and protective gloves. The health and wellness of our customers and employees will always come first. We are here for you! Seatown provides Electrical, Plumbing, Heating, and A/C services in the Greater Puget Sound region, concentrating in King and Snohomish county. With our customer satisfaction guarantee, you can rest assured that your system will outlast industry standards, providing safety, and comfort for your home, for many years to come. You will never have to search for a new electrical, plumbing or heating and air contractor again. That is our promise. Seatown continues to lead Angie's List, with overall "A" reviews, by serving one customer at a time and giving top-notch service. We hope to build long-lasting customer relationships, throughout Washington State. Our world-class technicians will show up to your door in clean uniforms, with visible ID and state certification, trained to over-exceed your expectations, and never leaving a mess behind. We are Seatown Electric Plumbing Heating And Air, Washington's all in one contractor.

"The employee called me a sandn*gger. Do not hire these ppl."

Matt R on October 2025


Avatar for Glendale Heating & Air Conditioning

Glendale Heating & Air Conditioning

4.81(
128
)
Approved Pro

Glendale Heating & Air Conditioning

4.81(
128
)
Approved Pro
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
84 local quotes requested

Glendale Heating and Air Conditioning is located in Burien, Washington and proudly serves Greater King County. We are a third-generation family business that has served the Northwest since 1938. At Glendale Heating and Air Conditioning we are always there when you need us and we are prompt, efficient and reliable.

"WORK WENT VERY SMOOTH. TECH. WAS VERY INFORMATIVE."

Floyd S on May 2025

Glendale Heating and Air Conditioning is located in Burien, Washington and proudly serves Greater King County. We are a third-generation family business that has served the Northwest since 1938. At Glendale Heating and Air Conditioning we are always there when you need us and we are prompt, efficient and reliable.

"WORK WENT VERY SMOOTH. TECH. WAS VERY INFORMATIVE."

Floyd S on May 2025


Avatar for Product Air Heating & Cooling, LLC 

Product Air Heating & Cooling, LLC 

4.86(
269
)
Approved Pro

Product Air Heating & Cooling, LLC 

4.86(
269
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
273 local quotes requested

Product Air: your dedicated partner for complete home comfort. Proudly serving Marysville, Everett, Seattle, Bellevue, and surrounding communities, we deliver expert heating, cooling, and electrical services designed to exceed your expectations. From furnace repairs to electrical solutions and optimizing heat pump performance, we're equipped to handle any home service need. Trust Product Air for seamless solutions that keep your home running smoothly and efficiently, season after season.

"Kevon was great! Knowledgable and made suggestions for placements of outlets that have been so convenient. I strongly recommend product heating and air electric company. Love that they service Monroe WA"

Tami L on October 2025

Product Air: your dedicated partner for complete home comfort. Proudly serving Marysville, Everett, Seattle, Bellevue, and surrounding communities, we deliver expert heating, cooling, and electrical services designed to exceed your expectations. From furnace repairs to electrical solutions and optimizing heat pump performance, we're equipped to handle any home service need. Trust Product Air for seamless solutions that keep your home running smoothly and efficiently, season after season.

"Kevon was great! Knowledgable and made suggestions for placements of outlets that have been so convenient. I strongly recommend product heating and air electric company. Love that they service Monroe WA"

Tami L on October 2025

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Heating and Air Conditioning questions, answered by experts

There are two main reasons your furnace and AC are turning on at the same time. The first could be that you’re confusing the furnace with the blower. The blower is located in the furnace and will turn on to distribute cool air from the air conditioner through the ductwork in the home. This is normal. If the actual furnace is turning on at the same time as the AC and hot and cool air are coming into the home, it could be a result of incorrect writing to a new thermostat or new systems.

Yes, you can build a deck over your outdoor HVAC unit, but you need to leave at least 5 feet of vertical clearance above the unit. If you don’t want your deck to be that high off the ground, you could build a floating deck in another part of your yard—again, as long as you leave at least 4 feet of horizontal space between the deck and your AC unit.

If you’re shopping around for a rooftop AC unit, you may hear them referred to as “package units.” That’s because rooftop AC systems are all-in-one heating and cooling units that connect directly to your home’s ductwork. If your AC repair pro references a package unit, they are referring to the system on your roof.

It’s normal to hear a low humming sound as air moves through your vents. Most of the time, you probably won’t even notice it. However, if that sound becomes disruptive or if you hear more concerning noises (such as rattling, clicking, banging, hissing, or grinding), there might be a problem with your HVAC system.

Yes, you can clean AC coils yourself. Just make sure that the power to your AC system is off before you begin. You’ll need some basic tools and supplies, including a soft brush, cloth, screwdriver, and a commercial or homemade cleaning solution. Cleaning your coils will only cost about $10.

The Mercer Island, WA homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.