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    Services - 73sense

    Building energy audit

    HVAC installation or replacement

    Plumbing inspection

    2 More Services

    Plumbing installation or replacement

    Water heater installation

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    Reliance Energy Services

    Reliance Energy Services

    5.0
    (19 reviews)

    Jason tested our new ducting and discovered that our intake box was leaking air from the attic at a…read morerate of a small bedroom every 10 minutes. WOW. So in the summer, instead of sucking in air from the inside of the house, it would be be sucking in 100F air from outside, making the AC inefficient. He took the time to drive to the store to get sealant to fix the leaks inside the intake box, and spent an hour applying the sealant himself. Did not ask for any extra money, did not complain, had a great attitude, and really wanted to make sure that he gave 150% effort to the customer. Then he re-tested the system and the system passed this time showing barely any leakage. Gave us the report and the paperwork needed for the building inspector. If you do your own HVAC upgrade without a city permit, you think you save money by not having to spend money on HERS testing. Nothing could be farther from the truth. When it comes to spending money, I'm cheap. I didn't realize that Jason's job is to make sure that the extra money you spend on upgrading your ducts/AC equipment to more efficient equipment is not in vain due to leaks in your ducts A+++ experience with using this company for HERS testing, and will recommend to others to use this company.

    Jason of Reliance Energy Services did a great job with the HERS Testing and Reporting. We had a…read morenew combo HVAC Heat Pump installed, and Jason performed the HERS testing. He came with the proper equipment to take accurate measurements, and generated a comprehensive report. He was very efficient. Furthermore, Jason had the HERS report sent to the City of Lake Forest electronically, so the city inspection went very smoothly. Great value for the services they provide, not only for the testing, but also for the reporting to the city inspectors. I highly recommend Jason and Reliance Energy Services. Thank you, Jason.

    Building Doctors

    Building Doctors

    4.7
    (39 reviews)

    I have a friend who works in the HVAC world (in policy work, consulting), and when he scoured…read morethrough the Building Doctors evaluation and proposal on my home, he said "this is the most detailed scope of work bid I've ever seen". He was super impressed by everything I reported to him that Building Doctors was saying and doing, and my personal experience was terrific - they were communicative, honest, realistic, efficient, and I'm deeply satisfied with the result. Highly recommend!

    They are absolutely the best contractors I have dealt with in over 30 years as a homeowner…read more Their proposal was accurate and complete. Their work is excellent quality and was done on time. When there were problems due to unexpected issues (as there always are), they came up with great solutions and were always fair and reasonable. After they upgraded the insulation and replaced the HVAC in my house, my utility costs have been cut by over 60% and my home is significantly more comfortable to live in. I've gone from a 3 zone system (with two 3 1/2 ton units) that always had hot and cold zones to a 1 zone system with one 3 1/2 ton unit. It's always the same temperature throughout the house for all seasons and I almost never have to think about adjusting them temperature because it now "just works". I wish I had done this 20 years ago. Since the initial remodel I've used Building Doctors multiple times on smaller jobs and they've always done top rate work at a fair price. I highly recommend them!

    AHP Testing

    AHP Testing

    5.0
    (24 reviews)

    Last August. I had issues with my AC. AHP testing came out and did their HERS Testing. It has been…read morea long process getting the answers I needed after Urban Works failed me in fixing the issue. Alex and Rob sent us videos and product information on how to fix the leaks that were discovered in all the floor registers. Today, Rob and Alex the owners came out and inspected my floor registers and looked at my Unit to make sure there were no leaks. The owners and office staff are amazing. Should you ever need testing done on an AC repair, AHPTesting is your go to company. Very thorough and Customer Service oriented. 10 Stars

    We had a stubborn commercial kitchen hood exhaust. It had not been operated in years, but we needed…read moreto earn our operating permit from the County. Robert Bachus, the owner of AHP Testing made time immediately to help us out. We were up against a deadline to open the restaurant, and unfortunately failed our first air balancing test. Robert did not just deliver the bad news and move to his next appointment. Instead he helped us troubleshoot the cause of failure and coordinated closely with the HVAC contractor we were using. Robert led the way to specify and share with the team the exact amperage and CFM levels needed to pass the test. After we hustled to source the items Robert advised us on, he put us back on his already busy testing calendar for the following day. As murphy's law would have it; Robert shows up with all his gear, we turn the exhaust system on and it still was not working properly. Rob made his way to the roof to troubleshoot and even made some adjustments to the fan belt - going way above and beyond! Not 40-minutes later we passed our air balance test! Throughout the process Robert was steadfast, calm, resourceful, collegial, and above all humble when we praised him for all the help he gave to us. AHP Testing receives our full endorsement for quality work and savvy troubleshooting skills. We won't ever use another Testing service other than AHP Testing. We appreciate you, Robert Bachus!

    Efficient Plumbing

    Efficient Plumbing

    4.9
    (512 reviews)

    Our 15 year old water heater started leaking and I called our go to plumbing company that we have…read morebeen using for many years now. Thank you Efficient plumbing yet again for your service and timely installation. When we called my husband scheduled the plumbers Steve and Hector to come out the following day. They had a look at my water heater and determined it needed to be replaced. We had been wanting to get a new tankless water heater for quite some time but my husband wanted to wait until we were in need of replacing our current hot water heater tank. Steve gave us a quote for replacing our current 75 gallon water heater with a tankless Navien model that would go in our garage in the same place as our old water heater. The price was fair and we agreed to go with the work. Later that morning Efficient Plumbing ordered our tankless water heater, delivered it, removed our old water heater and installed the new tankless water heater for us. They did an amazing job with all the necessary modifications to make the conversion from tank to tankless and we were thrilled with the end result. We now have endless hot water that we once never had. Efficient Plumbing has once again came to our rescue when we have been in need of a plumber! They are the best plumbers and I will continue working with them on any future projects or improvements that we may need.

    A few weeks ago we woke up to find a bubble in our dining room ceiling from water that had been…read morefilling up while we were asleep! This is any homeowners nightmare and I called Efficient Plumbing right away. We have used them for many years and sadly this wasn't our first water leak. Evelin answered the phone and walked me through on how to shut the water off to the house immediately to stop the water damage. Hector came out within the hour and got to work diagnosing our issue. He is knowledgeable and very experienced and we always feel like we are in good hands. Our ceiling was opened and it turned out to be a copper pin hole leak on the water line in the ceiling above the dining room that feeds our master bathroom. Hector skillfully repaired the water leak and also advised us to consider a whole house repipe since this was not our first leak. They gave us their estimate the same day for the whole house repipe and even offered to credit the repairs made with Hector towards the repipe which was a big help. We decided to move forward and had them repipe our whole house the following week. They got it done in one day and everything went great! A few days later the drywall was patched up and we were all done! There are many many plumbers in our area but after years of consistent quality workmanship and customer service, I only use and trust Efficient Plumbing.

    73sense - homeenergyauditors - Updated June 2026

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