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Find Central humidifier installers and replacers in Mercer Island

Avatar for AAA Heating & Air Conditioning
AAA Heating & Air Conditioning
4.8(
237
)

Serving Mercer Island, WA and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"Electrician came out, examined light fixture, and said he'd need to order a part. We scheduled an appointment for later in the week. He then came out, replaced the fixture, and everything now works."
Additional Photos
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Our Service Center
Response time1 day
14 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Seatown Electric Plumbing Heating & Air
Seatown Electric Plumbing Heating & Air
4.8(
1,392
)

Serving Mercer Island, WA and surrounding areas

Approved (Corporate)

In business since 2013

Emergency services offered

Warranties offered

"Seatown did mostly a good job I suppose installing a new gas burning high efficiency furnace. When the salesperson was providing their initial consultation, they pointed out that our existing thermostat would have to be replaced and the 3-wire thermostat wire would need to be upgraded to 8-wire for the high efficiency furnace. They were going to charge me some exorbitant fee to pull the new wire through 5 feet of wall. When I questioned it, they knocked it down to $500. I told them I'd buy new wire and pull it through myself before they showed up. Needless to say I was pleased to find out that the technician only used 3 of the wires anyway so that attempted overcharge would have been for nothing? Also the technician very cleverly did NOT place the new thermostat on the wall such that it covered up the old hole in the wall so I had to move it after they left. I can't say I was too happy with the furnace exhaust pipe. First, they placed the exhaust pipe above our gas meter but the inspector didn't flag it so I guess there's no issue. Also they used non-paintable caulk to seal the exhaust pipe so that painting it to blend in with the siding was a bit of a problem. They also didn't provide any sort of screen for the exhaust pipe to keep animals from crawling in it. When I questioned that they said that the carbon monoxide would kill them. So their solution is to have a dead animal in our furnace exhaust? Not to mention that doesn't really work in the summer when the furnace isn't running. Other than those rookie mistakes I noticed, I'm sure everything else was done properly?"
Generator Repair
Additional Photos
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Electrical Panel Repair
Additional Photos

+44

87 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Airpros Energy
Airpros Energy
4.7(
88
)

Serving Mercer Island, WA and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"I'd been wanting to get of our old electric baseboard heaters for a long time, and replace it with something more efficient, and Mark helped my understand the differences between a ductless mini-split system and a ducted heatpump system. Even in our small house, the ducted system was the way to go. Mark and his installers were professional and efficient, and answered all my questions. When the thermostat was acting a little odd, he sent a technician over to calibrate it, free of charge. There was a small issue where I initially got the wrong specs for the electrical, and as a result I had the electrician install unnecessary circuits, but Marc reimbursed me for the cost."
AC Promo
Comfort Built for the PNW
1 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Greenwood Heating and Home Services
Greenwood Heating and Home Services
4.6(
424
)

Serving Mercer Island, WA and surrounding areas

Approved

In business since 1921

Emergency services offered

Warranties offered

"Worked with Greenwood Heating and Air on a furnace replacement and only have excellent things to say about the company and team. Customer service, pricing, timeliness, thoroughness, and friendliness were top notch. Contacted them initially for an inspection of our 28-year old furnace. The technician Frej was prompt, thorough, and courteous, explaining in detail the issues we might face with this still working but old units. Based on the findings we reached out for a quote on a system replacement. Lori took diligent care in listening to our concerns and hopes for a new system, recommending systems that might work for our household. She was always available for follow-up questions, providing answers that really helped us decide on getting a new system (Trane XC80 furnace with air scrubber) via Greenwood H+A. Prices were fair, on par with expectations and quotes from other businesses. On the day of the install, the team at Greenwood H+A, including Jake, Jordan, and Jason were very flexible, coordinating with the roofing company we had hired to take down our chimney and replace with a vent, to get the project moving on time. They were all very communicative, which we appreciated, and gave us regular updates on the progress. They finished what seemed like a big job within the day, despite the install occurring in our cramped crawl space. Our house is now toasty warm again with a great new furnace and all the bells and whistles. Would definitely recommend them for similar job, including for custom requirements as was our case with the roof. Thanks!"
Signature Install
Greenwood Plumbing
Greenwood Fleet
Greenwood University
Response time11 hrs
Response rate90%
12 neighbors recently requested a quote
Avatar for Day & Nite Plumbing & Heating, Inc.
Day & Nite Plumbing & Heating, Inc.
4.3(
225
)

Serving Mercer Island, WA and surrounding areas

Approved

In business since 1954

Emergency services offered

Warranties offered

"I purchased a new Navien NPE-240A2 Tankless Water Heater and had it installed. I'm loving the new water heater. It replaces an old Noritz tankless that died just before this installation. The on-site estimate was what sold me. Ken went through all the details and answered a lot of questions from me. Zachary came out with Austin and performed the installation just like I discussed with Ken. Zachary kept me in the loop throughout the installation to ensure I was in agreement with how it was going. Zachary always had my interest at heart and ensured no corners were cut. The installation is much cleaner, and more correct than the previous tankless company did. Zachary even listened to my concern about the astectics of the exterior exhaust and quickly found an easier and cleaner looking way to address my concern. He also removed an old recirculation pump and replaced a new main house shutoff valve. The entire area was treated respectfully and left cleaner than they found it."
Outdoor Ductless Unit
Indoor Ductless Unit
Outdoor Ductless lineset and Unit
Pump System
Response time2 days
9 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Evergreen Home Heating & Energy
Evergreen Home Heating & Energy
4.5(
103
)

Serving Mercer Island, WA and surrounding areas

Approved

In business since 1975

Free estimates

Emergency services offered

"Evergreen installed a new hybrid heat pump system in my house. After researching the options, Evergreen was not only the most reasonable price, but they also scoped out a hybrid system where they would install new duct work and a single air exchanger in the attic and a minisplit in the basement. Scott, the sales person, did not try to upsell me on number of zones (others tried to get me to get 2 units in the basement) and after 2 months with the system, the single unit in the basement is heating the whole basement to our needs. All this was done at a price still considerably lower than the "standard" system price being offered by one of the bigger, similarly named companies. Evergreen was also the only company to propose a hybrid system where they would install a single exchanger in the attic and run new ceiling ducts to the rooms. This was appealing because we don't need to have the cassettes in each room and we didn't need to line the outside of the house with conduit for the cassettes (also the bathroom gets heat, too). Scott was great to work with, answered all my questions, and did his best to size the system correctly. Installation was smooth. There was a small hiccup where the installer accidentally broke a basement window, but Evergreen squared it away. Don and his team were great and the inspections passed. After install support has been great. Denise has been responsive to my questions. Overall, the experience was great with Evergreen and I highly recommend them."
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+9

Response time5 hrs
Response rate98%
5 neighbors recently requested a quote
Avatar for Smart Electric, Heating & Air
Smart Electric, Heating & Air
4.9(
76
)

Serving Mercer Island, WA and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"Joseph was very responsive in scheduling a time to come out troubleshoot the problems are were having. The day he and his team member arrived they were able to quickly identify and fix our electrical issues. In addition to installing armored conduit and getting dead power outlets up and running again, he replaced our 10+yr old smoke and carbon detectors at a very reasonable price. Joseph and his team are very professional and do great work."
50 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Northwest Expert Heating, LLC
Northwest Expert Heating, LLC
4.1(
37
)

Serving Mercer Island, WA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"I had a 4-Zone Heat Pump installed and couldn't be happier with the result. Richard Scott was quick to do an estimate and was very professional, no pressure. Oleg and his team did a very good job with the installation that took a day. The electrician also did a good job, it was done in half a day. The price was fair and competitive compared with the other cotractors who came by. As Richard said, "Enjoy your new HVAC." We are definitely enjoying the benefits. I HIGHLY RECOMMEND Northwest Expert Heating & Cooling !!!"
COLEMAN 14 SEER Air Conditioner
Outdoor Unit
TRANE XV 80
In the Process of Installing Ac
9k indoor unit

+22

Response time11 hrs
172 neighbors recently requested a quote
Recommended by56%of homeowners
Avatar for One Hour Heating & Air Conditioning of Newcastle
One Hour Heating & Air Conditioning of Newcastle
5.0(
5
)

Serving Mercer Island, WA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

At One Hour Heating and Air Conditioning, we keep homes comfortable year-round with honest recommendations, neat workmanship, and fast response times. Our licensed, insured technicians service all major HVAC brands, and every job is backed by clear pricing and strong warranties. Whether it's a quick repair, a full system replacement, or indoor air quality upgrades, we make it easy—from first call to final clean-up.

Furnace
AC
5 neighbors recently requested a quote
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FAQs for central humidifier installation and replacement projects in Mercer Island, WA

A crawl space dehumidifier is a worthwhile investment, particularly in humid climates or if you've noticed musty odors, mold growth, or wood deterioration. Though costs range from $3,000 to $9,200, this investment helps prevent structural damage that could require far more expensive repairs later. Beyond structural protection, a properly dehumidified crawl space contributes to better overall indoor air quality and may reduce allergens throughout your home. Consider having a professional assessment to determine if your specific situation warrants this investment.

Addressing crawl space moisture effectively often requires a combination of solutions. A complete approach includes encapsulation plus dehumidifier installation. For minor moisture issues, a basic dehumidifier starting at $1,500 may suffice, while severe problems in larger spaces could require systems costing up to $14,000. The most effective moisture control strategy depends on your specific conditions, making a professional assessment valuable for determining the most cost-effective approach for your situation.

For a crawl space measuring 1,500 square feet, you'll need a dehumidifier with a daily capacity of 30 to 50 pints, with unit costs ranging from $150 to $600. Your local climate and existing moisture levels may necessitate adjusting this capacity—homes in particularly humid regions might benefit from higher-capacity units. Professional installers can measure your specific humidity conditions and recommend equipment that is appropriately sized, balancing initial cost with operating efficiency for your unique situation.

Crawl space dehumidifiers add $300 to $500 to your annual electricity expenses when operating continuously. Energy-efficient models reduce this consumption by roughly 15 to 30% compared to standard units. Most contemporary dehumidifiers feature humidity sensors that automatically cycle operation based on current conditions, helping manage energy usage. Proper crawl space encapsulation significantly improves efficiency by creating a controlled environment that requires less dehumidifier runtime, thereby reducing ongoing electricity costs.

The Mercer Island, WA homeowners’ guide to central humidifier installations and replacements

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