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Top-Rated Tankless water heater installers in Mukilteo - Updated Nov 2026

Avatar for Stream Water Heaters
Stream Water Heaters
5.0(
55
)
Tankless Water Heater - Install

Serving Mukilteo, WA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"My water heater tank stopped working so I decided to convert to a tankless system. Chad and George were who I worked with. I had a great experience with both of them. I was very pleased with their knowledge, work, communication and help. I would highly recommend them to other house owners."
A 20-Year-old gas WH.
A 20-Year-old gas WH.
Preventative Gas Repl.
Preventative Gas Repl.
Non-Condensing Tankless W

+1

Response time4 hrs
Response rate100%
Recommended by11%of homeowners
Avatar for Twin Water Heater LLC
Twin Water Heater LLC
5.0(
9
)
Tankless Water Heater - Install

Serving Mukilteo, WA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Austin with Twin Water Heater did an amazing job converting our traditional tank water heater to a tankless system. He was knowledgeable, professional, and took the time to explain the entire process and answer all of our questions. The installation was clean and everything turned out great. I especially appreciated how transparent he was about the work that needed to be done and the cost—there were no surprises or pressure to add anything unnecessary. You can tell he really cares about doing the job correctly and making sure his customers are happy with the end result. We’ve been loving the tankless system and having endless hot water! I would absolutely recommend Austin and Twin Water Heater to anyone looking for a water heater installation or tankless conversion."
Tank to Tankless
Natural Gas Water Heater
Electric Water Heater
Tankless Flush
Essency (On Demand)

+4

9 neighbors recently requested a quote
Avatar for Day & Nite Plumbing & Heating, Inc.
Day & Nite Plumbing & Heating, Inc.
4.3(
225
)
Tankless Water Heater - Install

Serving Mukilteo, 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
1 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for SeaTown Electric Heating and Air
SeaTown Electric Heating and Air
4.7(
1,638
)
Tankless Water Heater - Install

Serving Mukilteo, WA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Knowledgeable and fast! Had access to the heat pump technology I wanted to install while replacing defunct water heater. Prompt and efficient. Super satisfied!"
Seattle's Rewire Specialists
Generator
Tesla Chargers
Knob and Tube Removal
Ductless Install

+26

Response time1 day
3 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Private I Plumbing LLC
Private I Plumbing LLC
5.0(
26
)
Tankless Water Heater - Install

Serving Mukilteo, WA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Mark was able to replace my water heater quickly and efficiently and went the extra mile to make sure I understood the function of the heater and the water leak gauge -- my old one was improperly installed and submerged by water (super helpful. not.) On a follow-up call he even turned me on to a trusted electrician, cuz I need a bathroom ceiling fan installed. Two thumbs up!!"
Water heater replacement
Water heater replacement
Water Heater install
Water Heater install
Water Heater install

+18

Response time6 hrs
Response rate100%
43 neighbors recently requested a quote
Avatar for Harts Plumbers, Electricians, & HVAC Technicians
Harts Plumbers, Electricians, & HVAC Technicians
4.6(
1,249
)
Tankless Water Heater - Install

Serving Mukilteo, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2013

Emergency services offered

Warranties offered

"Dominick was on time explained what he was going to repair did a great job explained and wrote up estimate for replacing a new water heater fast service, polite technician explained my options for new water heater to be replaced in Jan great guy will hire him in Jan to replace the hot water heater"
Pipe llining
Pipe relining
Pipe relining
Camera inspections
Response time50 mins
Response rate100%
20 neighbors recently requested a quote
Avatar for Trident Plumbing & Drain Cleaning
Trident Plumbing & Drain Cleaning
4.9(
162
)
Tankless Water Heater - Install

Serving Mukilteo, WA and surrounding areas

Approved

In business since 2016

Emergency services offered

Warranties offered

"Installation went smoothly once the particular part we needed arrived. We were impressed by the care Devon took to consider our scheduling needs so that patient care wouldn't be interrupted during installation. He also made sure to install a mixing valve that prevents the water from being too hot for our young patients."
Response time1 day
Response rate100%
Recommended by91%of homeowners
Avatar for Rescue Rooter Seattle
Rescue Rooter Seattle
4.5(
133
)
Tankless Water Heater - Install

Serving Mukilteo, WA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1976

Free estimates

Emergency services offered

"Plumbing Technician Dennis Poznyur did an outstanding job shutting/capping off a natural gas line servicing a gas dual fuel range in preparation for installing an induction range. Kudos to Dennis for very professional service."
Clogged Drain
15 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Schmitty's Plumbing
Schmitty's Plumbing
4.8(
50
)
Tankless Water Heater - Install

Serving Mukilteo, WA and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"Install was on time and as described. '1st Response' did the job I expected for the water heater install. Good customer service for scheduling. Note that the Angie's list price of $799 only covers the installation of 50 gallon gas AO Smith hot water tank. Assuming you also do installation of new brass fittings, new flex lines and new expansion tank (which you should probably all do with the new water heater) it will cost an ADDITIONAL approx $500-600 (mostly labor costs). That's a competitive price but still, you should be aware that the original quote is just for the water tank install itself, nothing else. All-in-all they did a good job for a competitive price. A few months after the install, so far, I can say I would recommend them for this type of work."
Response time2 days
Response rate100%
Recommended by93%of homeowners
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Showing 1-10 of 101

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