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    A 100% Guarantee Heating & AC

    4.6 (122 reviews)
    Closed 8:00 am - 8:00 pm

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    Services - A 100% Guarantee Heating & AC

    HVAC installation or replacement

    HVAC system repair

    HVAC system maintenance

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    This is supposed to screwed together not taped

    After I posted my review, I got a response back. Technicians came to fix our flue pipes, but that's only because I I told them carbon monoxide was leaking into our garage and requested someone come out the same day. PG&E had to shut off our gas until the technicians arrived. That is how dangerous this issue was. I was told that the technicians would come back this morning between 8am-10am but no one showed up nor did I get a call or text. The owner's wife expressed that she's out of state for a family emergency and will take care of our filters when she returns on Wednesday. That's in 5 days! I understand that they have a family emergency, but so do we. My baby and I have been to the doctors every week for the past 2 months for respiratory issues and our health is getting worse. Their website shows that they offer 24/7 emergency services but I guess our health isn't an emergency. I'm having a hard time breathing, coughing and having chest pain, but seeing my baby (1.5 year old) suffer is so upsetting. All they have to do is install 2 filter grills and they can't even do that. They told me it would cost me money to install it even though a filter box or filter grills are a state and manufacturer requirement. A third party told us that we shouldn't have even passed our inspections with the way our furnace was installed because it's not up to code.

    Close up of one of the many tears in the brand new roof.

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    13 days ago

    Good job fixing my A/C unit!!!! Prompt, thorough, job well done. I was happy with the work.

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    1 year ago

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    Evan T.

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    10 months ago

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    Evan T.

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    Evan T.

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    6 years ago

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    2 years ago

    Quick service, very professional, and great prices! Communication was continuous throughout. I highly recommend.

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    4 years ago

    We've used this company twice and they are superheroes. Great communication and excellent service.

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    Evan T.

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    4 years ago

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    4 years ago

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    3 years ago

    prompt response, professional and highly knowledgeable technicians. I highly recommend this HVAC outfit.

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    4 years ago

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    Advanced Plumbing, AC & Furnace Repair - Plumbing water heater clog air conditioning heating repair replacement HVAC leak sewer smell cold hot toilet sink slow drain plumber

    Advanced Plumbing, AC & Furnace Repair

    (378 reviews)

    When I was visiting my Mom last week. She said her Hot Water Heater…read morewas making a loud knocking sound & the Company who installed it was scheduled to do a maintenance drain & flush a couple days ago but called to say they were understaffed & she needed to reschedule. Well she needed it taken care of now! So, I Googled Plumbing places and started getting quotes. Advanced Plumbing was by far the Best business for her Plumbing needs. No sooner did I hand up with making an appointment, the doorbell rang & there they were Advanced Plumbing employees Jamal & Terrance. They assessed the issue & provided my mom with the best & most affordable solution. They were very friendly, knowledgeable, & fast. They explained what they would be doing, showed her the damaged parts that they were replacing & had it done in no time. They also explained to her about the Warrantee on her product & about all the benefits her new Advanced Plumbing Membership offered. So we would definitely recommend Advanced Plumbing in Vacaville to anyone looking for affordable, friendly, & fast professional work done. Also a Big Thank You again to Jamal & Terrance for your Great Work !!

    !!PLEASE READ FIRST!!…read more I should have shopped around instead of rushing into hiring this company, that's my biggest mistake. I recently had a new washer and dryer installed, and the installer told me my water valves were leaking and needed to be replaced. This was the first company I called because of their high number of reviews, which I now regret trusting. The price I was charged to replace those valves was outrageous--nearly $1,100, and they didn't even bother to repair or replace the sheetrock afterward. For such a basic job, that alone felt excessive. It gets worse. After doing just one load of laundry, my water heater on the second floor started leaking down into the first floor. This had NEVER happened before they worked on my plumbing. I called them immediately, but they couldn't send anyone out until the next day. When a technician finally arrived, I was quoted $4,000 to replace the water heater. That didn't sit right with me, so I decided to get a second opinion. I contacted another company, and the difference was unbelievable. They charged me $2,300 for the same water heater replacement, showed up within an hour of my call, and completed the entire job in about two hours. Out of curiosity, I also asked them what they would have charged to replace the laundry room valves. Their answer? Around $350. So I was charged nearly three times the going rate for a simple repair, and then quoted almost double for the water heater replacement. That's not just overpriced, that feels completely PREDATORY. I strongly recommend getting multiple quotes before hiring anyone, especially this company. I would not use them again and would not recommend them to anyone.

    Cozy Home Services

    Cozy Home Services

    (153 reviews)

    Very impressive .. I called several contractors to install a…read morehigh-end Bradford White gas water heater. I spoke to a Mark Grant at Cozy Home. Mark is impressive. He has a strong technical knowledge of water heaters, including furnaces and air conditioning. He told me all the rebates available. He knows all the new laws and when they take effect for gas & electric water heaters. He even knew the permit requirements specific to my Rio Vista. He told me all my options, including their advantages & disadvantages. He did not pressure me. He made sure I knew all my options. Then he sat back and gave me time to decide. Once I decided, Mark sent out a Jose & Aaron to install my Bradford White water heater. Jose is a craftsman who takes pride in his job. He pays attention to the finer details. He wants the finished job to look professional. I watched him work. He did an outstanding job. He and his assistant, Aaron, work efficiently. Aaron anticipates what tools Jose needs and hands him the tool before he even asks. Like Mark, Jose is very personable. He explained to me how to relight the gas pilot light if it ever went out. He was patient. He made sure I understood how to do this. They cleaned up nicely after they were finished. I had read many positive reviews about Cozy Home Services before selecting them. They definitely live up to their reputation.

    Jose Aaron and Gael did a terrific job on the install of a new heat pump system. The old furnace…read morewas up in the rafters and they got it out with no problems. They were respectful and hard working and Jose communicated well with us. We chose cozy home because of Mark the salesman. He was by far the most knowledgeable of 3 different companies who quoted our job. Cozy home was the middle of 3 prices, but with it being a Mitsubishi system I didn't expect the bottom dollar. The only down side is the proprietary thermostat, I'm not a fan. I would like to switch back to the old thermostat we had.

    Rendon Heating & Air - RUUD RD18 Heat Pump

    Rendon Heating & Air

    (52 reviews)

    Beware this company! They dont clear charge you before the service!…read moreWe had a very disappointing experience with this company. Their technician came to our home to look at our heater. He did not provide any upfront pricing, nor did he tell us that there would be a fee before touching the unit. After doing a quick, simple adjustment, he charged us $125 without any prior notice. The heater only worked for a one time and then failed again the same day. When we called the company, the owner told us that our heater is "over 20 years old and cannot be repaired." If the unit was truly too old to repair, their technician should NOT have started any repair or charged us in the first place. This is misleading and unprofessional. We feel that this company did not follow proper business practices: * No upfront pricing * Performed unnecessary work * Charged without consent * Refused responsibility afterwards

    My thermostat suddenly decide not to work last Monday, Rendon was able to come out next morning for…read morethe repair, Chris was professional and knowledgeable; unfortunately after the repair, another part failed later that day, but they come out again the very next day to repair. After two repair, unfortunately, the issue was that my system was just too old and needs to be replaced. They gave me a quote within a few hours (totally reasonable after received competition quote). Accept the quote on Thursday afternoon before 7/4 long weekend, and David was able to help me getting schedule first thing Monday morning!!! The installation team is professional, efficient, and friendly. Highly recommend!!!

    A 100% Guarantee Heating & AC - hvac - Updated May 2026

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