1. Quest Home Services

    1. Quest Home Services

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    Diamond Bar, CA

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    Quest Home Services

    4.8 (20 reviews)
    Closed 8:00 am - 8:00 pm

    Services - Quest Home Services

    Plumbing inspection

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    Recommended Reviews - Quest Home Services

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    4 years ago

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    Selina F.

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    5 years ago

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    6 years ago

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    5 years ago

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    Selina F.

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    4 years ago

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    Selina F.

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    5 years ago

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    6 years ago

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    4 years ago

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    Selina F.

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    5 years ago

    Good stuff, fast diagnostic and speedy hot water heater replacement. All good and water nice and hot now. Thanks.

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    Selina F.

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    6 years ago

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    Selina F.

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    5 years ago

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    Selina F.

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    6 years ago

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    Selina F.

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    6 years ago

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    Selina F.

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    6 years ago

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    Selina F.

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    5 years ago

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    Selina F.

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    5 years ago

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    Selina F.

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    6 years ago

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    Selina F.

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    6 years ago

    I contacted Quest Home Services for a quote. I was provided with excellent, fast responses. They were very accommodating and understanding.

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    Selina F.

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    6 years ago

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    Selina F.

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    5 years ago

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    Ask the Community - Quest Home Services

    Does quest do financing?

    Good morning Stacey, We're responding to message to clear our yelp inbox. We spoke already regarding financing. I hope we can still be able to help with your new a.c system. Please let us know if you have any further questions.

    Don’t See Your Question? Ask Away!

    Review Highlights - Quest Home Services

    I thank Steve for his great communication and hard work in the heat all day Saturday!

    Mentioned in 9 reviews

    Read more highlights

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    Diamond Air Services

    Diamond Air Services

    5.0
    (514 reviews)

    I recently had a HVAC installed by Diamond Air Service, and I couldn't be happier with the…read moreexperience. From start to finish, the entire team was professional, punctual, and respectful of our home. They worked efficiently, and kept everything clean throughout the installation process and their pricing was reasonable and transparent. Thank you, Anthony,Bobby and his crew and Edwin and Ethan. They all went above and beyond to ensure everything was done correctly and answered all of questions along the way.

    My air conditioner stopped cooling Friday night, and in a panic I contacted Diamond Air Services…read more They responded before any of the other companies I reached out to and were able to send a technician on Saturday. Mike came out and thoroughly evaluated my system (which is 20 years old). Even though there wasn't one obvious reason for the problem, he carefully checked every possibility. He found that the refrigerant was low and that the pressures weren't resetting as they should. He recharged the system, reconnected my electrostatic filter, and took the time to explain what might be causing the issue, as well as discuss possible future options. Mike was incredibly knowledgeable, professional, and personable. I felt confident in his assessment and appreciated that he never tried to pressure me into unnecessary repairs or a replacement. I feel very lucky that he was my technician. I highly recommend Diamond Air Services!

    Air CareSaver

    Air CareSaver

    4.8
    (192 reviews)

    Air Care Saver did a complete replacement of our HVAC system. Upon our invitation, Joseph, the…read moretech rep for Air Care Saver, visited our house and did an assessment of our existing system to provide us with options for review. His professional and pleasant manner along with a low-key, no pressure approach was much appreciated and made our decision making process easy. Well detailed estimates made it straightforward to analyze various options and pick the solution right for our needs. First was the removal of our old 1970's existing ductwork in the attic and installation of a new R-6 rated flex ducting system complete with new supply air vents and return intake and balancing dampers. The new ducting was securely hung and strapped in place in the attic. Our 27 year old Carrier condenser was removed and replaced with a high efficiency AC Pro 4 ton, two-stage variable speed 21 SEER2 unit as was the furnace, replaced with an AC Pro A-series, two stage variable speed unit. The installation crew, Luis, Carlos and Manny were truly top notch, working in a courteous and professional manner to complete the installation, testing and startup in quick order. It was apparent from the start that these guys were well qualified installers who worked together as a cohesive team to get the job done with minimal downtime. A real dream team with years of experience and know-how! We highly recommend Air Care Saver to anyone looking for timely, high quality HVAC service. They take pride in their workmanship and value customer satisfaction as a top priority.

    My Condenser unit wasn't working properly so I reached out to Air CareSaver. They had a tech come…read moreto the morning to check out my system. Joseph was able to diagnose the issue. Fortunately it wasn't a major repair. He clearly explained everything that was going on and gave me a quote that I was comfortable with. Everything is working properly now. Super happy. Thank you guys

    Friends & Family Heating And Air Conditioning

    Friends & Family Heating And Air Conditioning

    4.9
    (771 reviews)

    Service person listened to my requests and answered my question. Preformed very professionally…read more Explained what work he did and what supplies and parts were used. I feel I got a job well done and cost was reasonable.

    Excellent experience thus far for the following reasons:…read more 1. SERVICE 2. DIAGNOSTIC ANALYSIS 3. TRANSPARENCY 4. CLEAR COMMUNICATION 5. REPAIR OPTIONS WITH ELIGIBLE DISCOUNTS 6. PUNCTUALITY 7. THOROUGH EVALUATION We met with the following specialists: SEAN O'HARA (AC repair) - AC stopped emitting cool air. Fixed issue w/ filter repair. ALFRED BIRNHAUPL (AC leak repair) - Fixed pipe leak from AC and completed comprehensive assessment of our dysfunctional zoning system. DOMENICK ALONGE (project manager) - Reviewed findings from Alfred, provided detailed indication of issues and resolution options with several quotes. Here's why our experience has been superior to previous companies: All three specialists were not only punctual, friendly, and courteous, but they took their time to evaluate our issues in CLEAR layman terms corroborated by photos, and showing us exactly where the problems were in person. We previously obtained a quote from a large corporate company and was left feeling dumbfounded and stressed as they described the nature of our problem in engineering, technical jargon that made absolutely no sense, including astronomical quotes without explanation of the work entailed. We continued experiencing intermittent issues with our AC and heater so we called Friends & Family based on their excellent reviews. This time around, with Friends & Family, we left feeling knowledgeable and reassured, with reasonable quotes including various discount eligibility. We didn't feel pressured by them to choose one route vs. the other; rather, gained the information we needed to make an informed decision that would prevent such issues in the future. Overall, their attention to detail, ability to explain the issues and resolution routes in simple, concrete terms, were far superior than the preceding company. They exceeded our expectations and we much appreciated their patience and openness to answering all our questions. I also want to mention that I was gardening when SEAN was fixing our AC. He saw me struggling to dig a hole for my plant and volitionally offered to help me. He took the extra time to dig the hole for me, exemplifying his genuine kindness and generosity! Similarly, my kids were running amuck and screaming and shouting while I attempted to maintain a conversation with ALFRED. He was very understanding and continued to engage in conversation, appearing unbothered by the chaos with a pleasant disposition. Lastly, DOMENICK was appointed on the day of our son's birthday. He related to us interpersonally and even helped assemble my son's new Radio Flyer bike! I told him that Sean also helped me garden and we laughed about how Friends & Family is a "one-stop shop." Given everything I mentioned, we're excited to have our overdue AC/heater system fully repaired by Friends & Family. We can't wait for our longstanding issues to be behind us, and we anticipate leaving an updated review once the work is complete!

    Quest Home Services - plumbing - Updated July 2026

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