David is a wizard at what he does. Worked with him on a couple of boiler projects through the years and am always impressed with his knowledge and attention to detail. He produces showroom quality work and its clear every piece of his puzzle is intentional and done right. Highly recommend North Sound Boiler for all things hydronics and radiant
What customers say about North Sound Boilers & Radiant
Recent reviews
David is very knowledgeable, trustworthy, and efficient. He’s worked on a couple different issues for us at different houses: an old boiler system and a newer radiant heat system. I feel lucky to have found him as these repairs/systems aren’t cheap, but you know you’re getting your value with David.
If you need work done on a boiler, I don't think you'll find a better option than David. Our Navien combi-boiler developed a small leak and he came out promptly to assess the situation. He was one of 3 plumbers we had provide an estimate, and he was by far the best overall option.
1. He is super knowledgable and does the work himself. The other companies sent sales people.
2. He is detail oriented and actually cares about the work he does. Just look at the pictures on his website.
3. He provided both a repair and replace option and actually guided us towards the repair option. The other companies pushed the much more expensive replacement option and provided what seemed like very flimsy justification.
4. I asked him about some additional work another company recommended, and he actually talked me out of it even though I was ready to spend the money.
5. His prices are competitive, which I consider a great value considering the excellent quality of his work.
Overall, I feel very lucky to have found David and he effectively saved me thousands of dollars.
I never write reviews, but David deserves one. We have an old system that we have slowly updated with new radiators as well as a couple trouble shooting calls (our system is ~120 yrs old, for reference). David is economical, timely, nice and clearly takes pride in his work.
At one point, during an installation of a radiator, there was a moderate snag in our carpet that David immediately compensated us for and we had it repaired within a week. His accountability really stood out.
I cannot recommend him enough for any of your boiler servicing.
If you are looking for the best in the business, you have found him.
Working with David from North Sound has been one of the best contractor experiences I’ve ever had. From the initial consultation to the final system check, David showed an impressive level of expertise, professionalism, and genuine care for the quality of his work. He took the time to me through all our options, explain how (a propane conversion) (existing radiant heating) would benefit my home, and provided a clear and honest estimate with no surprises or upsells.
During installation, David’s attention to detail was outstanding. Everything was done with precision and real craftsmanship. He kept the workspace clean, stayed on schedule, and made sure I always understood what was happening at each stage of the project. You can tell he takes pride in doing things the right way, not the fast way.
The end result speaks for itself— our radiant heat system runs smoothly, heats evenly, and has completely transformed the comfort of our home. The difference is immediate and honestly better than I expected. David even followed up afterward to make sure everything was performing perfectly.
It’s rare to find someone who combines technical skill, rock-solid reliability, and excellent customer communication the way David does. If you’re considering radiant heating, North Sound Boilers Radiant is absolutely the company you want, and David is the person you want on the job. Truly exceptional service and quality—highly recommended.
Outstanding experience from quote to completion. David installed all the equipment for our radiant floor heat and hot water in our garage. From thoroughly explaining his quote, to an absolutely beautiful install (who knew mechanical could be a work of art) we were very pleased with the result. Highly recommend.
100% recommend
I had David out to do a check-up on our Navient tankless water heater and it was a great experience.
He was friendly, professional, and super informative. He not only serviced it, but he also explained what he was looking for, why, and what each result meant.
When you're looking for someone to work on water system in your house, this is the kind of service you want.
Solid experience all around working with North Sound Boilers & Radiant. We purchased a home 18 month ago and have had boiler issues off and on. I had another highly reputable heating company out twice to try and sort out the issues but they weren’t able to get to the root of the problem. I contacted North Sound on a Sunday evening during one of our cold spells this winter because our boulder went down and my family and I didn’t have heat. David came over that evening. Amazing service! He got us back up and running and after some trial and error David was able to pin point my problem and come up with a solution. All along communicating very well and being a honest guy. I would absolutely recommend giving them a call for your heating needs.
Our 12-year old Triangle Tube boiler died recently and we contacted David at North Sound. Within 7 days he sent us an estimate and came to our Whidbey Island home to do the work. The work took about 7 hours on day1 and 5 hours on day2. He used an IBC boiler and pretty much replaced ~90% of the old boiler stem (pumps, tanks, lines, etc.)
Dave seems to have the competence you would need with such a relatively complex system. Definitely not amateur hour with your gas/propane line, ignition and high temperatures and your water line all converging into this system. Potential for a down wind disaster.
I did not shop around as we had used David for prior maintenance and his reviews are excellent.
It definitely is not inexpensive - more than my used car cost.
David came prepared with all the tools and parts he needed. No breaks. On time, cleaned as he goes.
We will definitely use him again if needed.
See pics.
Our boiler stopped working meaning we had no heat or hot water. David came out the next day and diagnosed the problem. Ours is an old boiler and the part was not available locally. He ordered the part through expedited overnight delivery and installed it Saturday morning. I recommend North Sound Boilers without hesitation. David is a skilled technician but more importantly a man of integrity.
Very good.
Prompt, great service and communication with David.
We highly recommend NorthSound Boilers and Radiant.
David is knowledgeable, practical and personable. He was able to solve our heating/hot water problem quickly, for a very reasonable price.
Thank you again for great service.
I had the pleasure of speaking with the owner, who was incredibly kind and helpful. I contacted him regarding issues with my boiler, but realized that he was not based in my area. Despite this, he generously took the time to assist me over the phone, providing initial troubleshooting investigative questions free of charge. I am truly grateful for his support, as it allowed me to gain a basic understanding of the problem and where to start looking for a solution.
I want to emphasize that I am in no way taking advantage of his free consultation. Instead, I would like to highlight the genuine care he demonstrated to me towards people and his dedication to his work.
I am truly impressed by the excellent customer service and the genuine concern he shows towards others in his field. It is evident that he goes above and beyond to assist those in need. Thank you once again for your time and valuable assistance!
Professional, responsive, informed, courteous. HIGHLY recommend
We were very pleased with the work David did on our boiler system. He was extremely knowledgeable about our boiler and radiators and that gave me confidence the repair would be done properly, which it was. He is very pleasant to work with and responds promptly to any inquiries which is unusual these days. His pricing was reasonable and fair and there was no attempt to talk me into more services than were necessary. It was a true pleasure to work with North Sound and we plan to have all our future maintenance/repair work with them. I highly recommend this company and David, I do not think you could find a better company and person for your heating needs.
We had a woefully undersized and antiquated system that was costing a fortune to maintain. We contacted David with North Sound Boilers and the next day we developed a very well-thought out plan. David is a self-professed radiant system nerd and is happy to speak boilers until the sun goes down. We learned much, had a quick turn-around and are reaping the benefits of a brilliant new system which addresses all our heating issues. Competitively-priced, timely, honest and communicative - what more can you ask for? If you're looking for a company which prides itself in its professionalism and work, look no further. Highly recommended!
David has a very good understanding of boilers and radiant floor heating systems work, and how to repair them.
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North Sound Boilers & Radiant has 26 reviews on Trustindex, collected from Google and Trustindex.
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North Sound Boilers & Radiant is rated 5.0 out of 5 based on 26 reviews. 100% of reviewers gave five stars.
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