Call Now
Website
Call
Business Details
10 Years
experience
Emergency
services
Your Trusted HVAC Partner in Mukilteo, WA
Legacy One Heating was founded in 2016 by an industry professional with over 20 years of experience who sought to redefine HVAC service standards. Our company was built on the principles of honesty and transparency, rejecting the aggressive upselling tactics common in the industry. We operate as a family-owned business, prioritizing customer needs over commission-driven sales. Our team consists of highly trained technicians with expertise across all facets of HVAC work, serving both residential and commercial clients. We maintain a commitment to continuous training in emerging technologies and energy-efficient solutions.

Backed by warranties and a satisfaction guarantee, we focus on building long-term relationships through ethical practices. Our service area includes Mukilteo, Everett, Seattle, and surrounding communities. We emphasize clear communication, fair pricing, and treating every customer as part of our extended family. This approach has allowed us to grow through word-of-mouth referrals and repeat business. Today, we remain dedicated to delivering reliable HVAC solutions while upholding the values that guided our founding.
Services
AC Repair Furnace Installation Heat Pump Maintenance Duct Cleaning Thermostat Installation Emergency HVAC Service Indoor Air Quality Commercial HVAC HVAC Maintenance Plans Heat Pump Installation
Details
  • Year established: 2016
Highlights and features
  • We prioritize customer needs over sales commissions
  • Our team offers 20+ years of HVAC expertise
  • We guarantee 100% satisfaction on all services
  • Licensed, insured, and fully certified technicians
  • Transparent pricing with no hidden fees
What people say
Quick and efficient Highly recommended Great experience No upselling Professional technicians
Services
AC Repair
Our AC repair service addresses cooling system malfunctions with prompt diagnostics and efficient repairs. We handle refrigerant leaks, compressor issues, and electrical problems while maintaining energy efficiency. Customers benefit from reduced repair costs through early issue detection.
Furnace Installation
We install high-efficiency furnaces with proper sizing and configuration for optimal home comfort. Our technicians ensure safe gas line connections and system integration. This service improves indoor air quality while reducing energy consumption through modern technology.
Heat Pump Maintenance
Regular heat pump maintenance extends equipment lifespan and maintains manufacturer warranties. Our technicians clean coils, check refrigerant levels, and optimize system performance. This preventive service reduces breakdown risks during peak usage periods.
Duct Cleaning
Professional duct cleaning removes contaminants from HVAC air pathways. We use industrial vacuums and brush systems to eliminate dust buildup. This service improves indoor air quality and system efficiency while reducing allergy triggers.
Emergency HVAC Service
Our emergency HVAC service responds to urgent heating and cooling failures after hours. Trained technicians carry essential replacement parts for immediate repairs. This service minimizes property damage risk and restores comfort during extreme weather conditions.
People
Karl
Owner
With over 20 years in the HVAC industry, Karl founded Legacy One Heating to provide honest service without aggressive sales tactics. He oversees operations while maintaining customer relationships.
Tristan
Service Technician
Tristan brings technical expertise and customer service skills to every HVAC repair. He explains procedures clearly and ensures complete customer understanding of service work performed.
Casey
Service Technician
Casey combines technical knowledge with a friendly approach during service calls. He performs thorough diagnostics and implements lasting solutions for HVAC system issues.
Questions
What HVAC services do you offer?
We provide AC repair, furnace installation, heat pump maintenance, duct cleaning, thermostat installation, and emergency HVAC services for residential and commercial properties.
Do you offer emergency HVAC services?
Yes, we provide 24/7 emergency HVAC services for urgent heating and cooling issues outside regular business hours.
What areas do you serve?
We serve Mukilteo, Everett, Seattle, Kirkland, Bellevue, Bothell, Lynnwood, and surrounding areas in Washington State.
Do you offer financing options?
Yes, we provide flexible financing options to help customers manage HVAC repair and replacement costs.
Are your technicians licensed and insured?
All our technicians are fully licensed, insured, and certified to perform all HVAC services we offer.
What makes your company different?
We prioritize customer needs over sales, with no commission-based salespeople and a 100% satisfaction guarantee on all work performed.
Reviews (7)
Kara Pearson
Dec 28, 2021 Report
Legacy One crew was the best. From day one, of reviewing our space and what we needed, through the final day of install. Very helpful, knowledgeable. Super kind group, everyone installing and working in the office.
Nita Luiz
Nov 26, 2021 Report
If I could give Legacy One zero stars. I would. This company does not even deserve a one star rating. We signed a contract with Legacy one to get a mini split air conditioner system installed in our Town Home. Their salesman came over for an inspection and promised us he could get the work done and we paid him more than half the deposit. After waiting for 2 months for our installation date, The installation guys showed up with a Boom Lift that did not fit or cover the height of our townhome. They said an installation was not possible & left. We tried to reach their Salesman , who said he would
Chandrakant Shah
Nov 18, 2021 Report
Tristan, the service technician from Legacy One, is a pleasant, helpful and courteous gentleman. He puts all our worries to rest and explains what needs to be done with great sincerity. The above 5 stars are for Tristan.
Service:HVAC maintenance
Nelson Foote
Oct 20, 2021 Report
I had a great experience with Legacy One! I called Legacy One to service our gas furnace. The tech, Tristan, was outstanding! He was extremely polite, very knowledgeable, and he took the time to explain what he was going to do, and to answer a few questions I had. When he was done, he pointed out a couple parts that will need some attention soon, but nothing super critical. I'll definitely be calling Legacy One for any future HVAC needs.
Louis Levy
Aug 04, 2021 Report
We had good overall experience and got a really high quality system at a competitive price. I got multiple bids and Legacy was not only competitive but they were also more creative around how to install with minimal impact inside and out. Some of the other firm suggested expensive and disruptive options, and showed no willingness to be creative. They showed up in force on the day and time they said and the team was friendly, professional and efficient. System works great and the heat pump is so quite its hard to hear when running.
B. J. H. Iii
Oct 27, 2020 Report
They worked on my old furnace ,which help nurse it along for a while longer. Then when the old furnace died they installed a new one in a couple of days. The installers were great did a good job. Very reasonable price. They put it in a year and half ago. I call ask to come out and do a maintenance check. They came out in two days and at no charge. I recomend them to anyone who need furnace work. Great company, ThankYou
Joseph McAvoy
Oct 19, 2020 Report
I work for an established company (since 1910). We had a Convertible Air Handler fail on us (during the freeze non the less). Requested 3 quotes and Legacy One was the first to reach out and provided their estimate. They reached out about a week later to answer any questions that we may have had, and we were still waiting on the other 2 quotes. Over a month later we finally received the other 2. Legacy One was within the ballpark but their customer service was light years above the others. The estimate was spot on, their crew was fast and efficient and their follow through was impeccable. Stop