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    Qualtech Heating & Cooling

    4.3 (199 reviews)
    Closed 8:00 am - 5:00 pm

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    Thank you Colleen! It was a pleasure working with you on your project!

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    9 years ago

    Nicest staff. They took care of us quickly and resolved our heater issue within 12 hours.

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    Page 3 of 5

    Ask the Community - Qualtech Heating & Cooling

    Hello, wondering about your availability today to repair air conditioner?

    We definitely have some availability today. Arrival time depends on what city you are located in. Please feel free to call anytime. 925.831.2444. Thanks!

    Don’t See Your Question? Ask Away!

    Review Highlights - Qualtech Heating & Cooling

    Erika, Project Coordinator, made everything run so smoothly -- she was kind, smart, and incredibly accommodating.

    Mentioned in 40 reviews

    Read more highlights

    Crawlspace Clean

    Crawlspace Clean

    4.9
    (182 reviews)

    I had a crazy invasion of rats and mice. Crawls space was recommended to redo a job that 3 years…read moreago I had insulation replaced and the house was sealed by another company. Apparently the job wasn't quite on spot. Crawlspace Cleaners came in helped me get rid of the invasion, resealed my home and cleaned out the ruined insulation and replaced it in less than a month. With guarantees to return if it fails or even when it works to come back with in a year to do a check. The company is attentive and respectful. I wasn't made to feel guilty or pushed in using them. They are a family company not chain corporate. I would recommend them 100%. Thank You crawlspace Clean.

    We have a crawlspace in our house that needed some TLC. Sure it provides a way to route air ducts…read moreand water pipes along with raising the house on pillars. However, crawlspaces can get moldy and wet from lack of care. If you ever encounter rodents, there is a good chance they came via the crawlspace. After all, we do hear noises at night at times, which is creepy. Jacob visited and gave a comprehensive review and estimate. We basically went for a full package of rodent control, cleaning, and installing a new vapor shield to keep it dry. The while job took maybe 2.5 days with a crew of 3 workers each day. Outstanding quality work. First phase was sealing up the homes around the house and crawlspace, and laying traps. The attic was inspected too. This was followed up with weekly followups to ensure no more rodents. This scope was subcontracted to Golden State Critter Control. Highly recommend working with Greg. The next two phases involve cleaning and eventually reinstallation of the vapor shield. Compared to what we had before, it was day and night! I also appreciated the crew alerting me to a leaky drain pipe. I later worked with a plumber to replace a cracked 3"D drain pipe that connected upstairs to downstairs. It was fixed in about 3 hours with two plumbers. Definitely recommend Crawlspace Clean for rodent control and crawlspace cleaning. 5 stars.

    Attic Pros

    Attic Pros

    4.5
    (1.1k reviews)

    We found signs of rodent activity in our home and after talking to several companies, we decided to…read morego with Attic Pro. We are incredibly happy with the work they have done. There was an active rat infestation in one of the attics and they acted quickly - cleaned and sanitized all spaces where rodent activity was found, pulled out all the appliances and cleaned, cleaned the duct work, and did a very thorough walkthrough of the home to find and close entry points (and there were a lot of entry points, sigh). Everyone I have worked with have all been professional, friendly, and knowledgeable - especially Jorge Hernandez, Allan Pablo, Armando, Tom Best. The job is so incredibly thorough and they are on top of the follow up maintenance. I am very happy I went through this company to get this house cleaned up.

    December 2025. Wesley came by and looked at my space and…read moregave me an estimate. I mentioned that I am also looking for a reliable handyman. Wesley suggest someone named Neo that works with him. I texted Neo and we selected a date and Neo choose 9AM as my schedule was open for the day. On the day of the appointment; 9AM came and went. I texted Neo to ask if I had the date wrong and did not receive a response for over 30 minutes. When he did respond; he stated that he would be at my home if 15 minutes. I texted back that I was not at home. As I was pulling into my driveway, I saw a truck loaded with work materials pull up and stop across my driveway. I got out of the car and came into the house. Once inside, I did a quick task and went back to the front door to close and lock all the doors. As I Iooked outside, I saw the same truck parked across the street. The guy got out of the truck, walked up my stairs and rung my door bell. I do not know if he was drunk or high but there he was. His excuse was that he has something happen with his child. He insisted on coming in and taking a look. I declined. He insisted several times. I told him to get off my property and that I would be calling the office to let them know what had happened. I did call their office and let the receptionist know what had happened. She apologized. I tried to call Wesley to talk to him and left a voicemail. I never received any response. As a Black Women that has lived in Oakland for a long time...... I would not recommend this business to anyone especially women. As a good client, you should be heard and respected always!

    Atticare

    Atticare

    4.4
    (760 reviews)

    Atticare team did a great job with my attic clean up and insulation change. Samuel Mor and his team…read morewent above and beyond to explain to me their process, carefully remove my old insulation, get an electrician to come check everything was good before putting new insulation in. For context, I interviewed 3 vendors but went with Atticare because Samuel was knowledgable and professional in his approach. We are happy with the outcome and definitely recommend Atticare and Samuel team for any attic work.

    I had AttiCare come out for an estimate to clean the attic and provide insulation at a rental…read moreproperty. The estimator's in-person presentation was very good -- professional, clear, and well organized. The overall process was explained pretty well however I needed more info after he left. The one key issue for me was the R-rating and since R-value is a major factor in comparing insulation options, I wanted to understand exactly what was being installed. I tried to follow up with the estimator to get clarification and asked for a call back. While multiple emails were exchanged from what seemed to be the corporate end, there was no actual human interaction, and my request for the estimator to call back failed. Because of that lack of follow-through, I ultimately decided to go with another vendor who was more responsive. AttiCare made a good first impression, but communication after the initial visit failed. I wouldn't proceed without speaking to the estimator. They lost a job due to that.

    Insulation Alliance

    Insulation Alliance

    4.8
    (121 reviews)

    We were initially told by another HVAC company that we needed to replace all of the air ducts and…read moreinsulation in our attic, add insulation in the rafters, and address rodent droppings in the crawl space. When Elmer came out, he took about 30 minutes to walk through the house and gave us a completely different--and much more reassuring--assessment. He identified entry points where rodents were getting into the crawl space, explained that the air ducts did not need to be replaced, and instead recommended insulating the rafters, reinsulating the attic floor, and cleaning and reinsulating the crawl space. He also suggested installing an attic fan to improve air circulation. Throughout the visit, he was straightforward, knowledgeable, and very approachable. We decided to move forward with the attic fan. Umar updated the contract promptly and even came out personally to help program the fan and connect it to my phone. Their team worked tirelessly over four days and did an excellent job. They were professional, detail-oriented, and left the house clean when they were done. We enthusiastically recommend Insulation Alliance. Thank you, Elmer, Umar, and team! ST, Redwood City

    Umar and his team is the best in every.single.aspect! I had a bunch of companies come out to give…read morea attic insulation removal and installation estimate and not only was their price the best but customer service was top notch. They are on time, efficient, careful and most importantly HONEST. The are very flexible on scheduling (I don't think they have any days off!), prompt in replying, just absolute stellar company. They did my insulation removal on Sep 1 and insulation installation on Oct 23. I was so satisfied with them that I contacted them again in January for a furnace repair! Thank you so much Umar and team. You have a customer for life and I will recommend Insulation Alliance to everyone I know!

    Attic Crew

    Attic Crew

    4.8
    (618 reviews)

    We worked with Jay, Andres(?), and Angelica. They really went above and beyond to help educate us…read moreabout the process of installing a moisture barrier and all the factors that go into successful rodent abatement. The communication was excellent, even on a holiday weekend I got called back within an hour of reaching out with questions, which I certainly did not expect! They arrived promptly for appointments and were thoughtful about avoiding tracking dirt into our home. They worked with us to customize their work to our coastal climate and were very transparent about exactly what materials they would be using (all top of the line, industral-grade!). I have pets and toddlers and they took my concerns about chemical disinfects seriously and offered several options to make sure I was comfortable with what was used in our home. They really seem to take pride in their work and enjoyed sharing before and after pictures to demonstrate all the improvements they made to our crawl space. I could not be happier with my choice to hire them, and plan to work with them again when I'm ready to replace my attic insulation.

    I can't say enough good things about Attic Crew. From start to finish, their service was…read moreexceptional and truly above and beyond what I expected. I had an urgent issue, and without any hesitation, they came out twice for follow-up visits to make sure everything was fully resolved. That level of responsiveness is rare and deeply appreciated. Caleb, Morris, and Sofia were both incredibly attentive, professional, and helpful throughout the entire process. They were always quick to respond to texts and messages--no delays, no runaround, just clear communication and genuine care. Jay, the owner, is equally impressive. He is very professional and took the time to thoroughly explain the entire rodent cleanup process, which gave me a lot of confidence and peace of mind. If you're looking for a company that is responsive, knowledgeable, and truly stands behind their work, I highly recommend Attic Crew. Excellent service and an outstanding team.

    Mr Attic - Rodent Proofing & Insulation Services

    Mr Attic - Rodent Proofing & Insulation Services

    4.9
    (115 reviews)

    My 30-year-old home, new to me clearly had a history of squirrels and rats able to access the…read moreAttic! Once I managed to get into the tough access locations it became clear I would need a couple of experts! (1) First I brought in my license electrician to investigate and secure anything of concern. (2) Contacted a roofer through my association to secure and harden any roof locations as able. (3) Now I need a cleanup expert to remove insulation clean the Attic for further inspection, along with re-insulating and maintaining it in the future! Upon checking out local companies and reviews I chose Mr Attic, it was definitely the right choice. I was able to get Sean one of their estimators that afternoon to inspect and get me a proposal for the job. I must mention I did HVAC work for 34+ years so I do have a trade sense and the proposed price and scope of work felt reasonable. It was clear upon meeting Sean that he was an expert at all things attic which gave me confidence in the job they would do and I felt I could trust him, I was not disappointed! They removed all the old fouled from rodent insulation in very neat fashion making no mess in my home or the work environment. They did some screening and foam work to seal and harden against future rodents. My return air duct to the HVAC system had been scratched on by squirrels and slightly collapsed so they took care of that too along with all new insulation some of which was in very tight to get to places. They were very accommodating to my timing which allowed for my electrician to come through once again for a final look along with some other attic access required improvements I wanted to deal with. (Note) Big improvement on HVAC air flow! And what a difference properly laid out thick insulation makes! Wow. I feel a lot better about that attic now! Those who find themselves in attics at times know what I mean This has been a great experience with a good company with a solid follow-through! Would definitely recommend Eric S

    They were almost 1/2 the price of the larger corp companies for the same job. They came out and…read moreblocked the squirrels from enter the over hang. They did however accidentally tapped 2 of them in side, so they came back out and created a small opening to let them go (for a fee, but still the total cost was less that the others) and then a few days later when all was clear, they closed up the opening (no fee for coming back to close the opening, very nice) to resolve the issue.

    Chris's Insulation Services

    Chris's Insulation Services

    4.9
    (114 reviews)

    Beyond easy experience with Chris. My dryer suddenly started giving off a burning smell, which I…read moremistakenly attributed to the lint catch being overloaded. But even after cleaning it out, the smell wasn't going away. Then the vent started giving off either smoke or steam, and in a panic I immediately turned off the dryer. Thank God I didn't start a dryer fire. The second I shut it off and made sure everything was ok, I opened Yelp and searched for a dryer vent cleaner. Chris's Insulation came up, he had great ratings, he was super close by, so after calling a different service and going to voicemail, I called Chris. Chris picked up after the second ring. When I told him that I needed someone to clean our dryer vent and what had happened, he said he could come out either between 5:00 and 6:00 pm that evening or the next day. It was already mid-afternoon when I called, so I was surprised to hear him say he could still come out same-day, but I decided to have him do that since I was free and also still a little shaky following what happened with the vent either smoking or steaming. Chris showed up during the window he quoted and wasted no time getting to work. He started the second he arrived and was done within the hour. His pricing was incredibly reasonable and fair and so far, in the couple of weeks since he was here, we've had no issues with the dryer. Before he left, he also sent us a ton of pictures of what the vent looked like post-cleaning. Super happy and relieved.

    Chris and his team were awesome to work with. They removed the old, bad insulation from my attic,…read morecleaned everything out, and cleared a surprising amount of debris I didn't even know was up there. The space looked completely refreshed afterward! About a month later, I had them come back to add new insulation and handle the air sealing. Same experience -- fast, solid workmanship, and a very reasonable price. Overall, really smooth process and great results. I'd definitely recommend Chris's Insulation Services!

    Qualtech Heating & Cooling - hvac - Updated June 2026

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