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KNOLL SYSTEMS

Heating and Air Conditioning, Air Duct Cleaning

Business highlights

Emergency Services Offered

Services we offer

HEATING & A/C

Amenities

Emergency Services
Yes


Accepted payment methods

American Express
Discover
MasterCard
Visa

Reviews

2.76 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
17%
4
17%
3
0%
2
50%
1
17%


Rating CategoryRating out of 5
quality
3.3
value
3.2
professionalism
3.0
responsiveness
3.0
punctuality
2.8
Showing 1-6 of 6 reviews

NOBUKO F.
11/2007
2.0
heating & air conditioning/hvac
  + -1 more
They weren't very professional and they took too long to install the A/C unit. A part was malfunctioned and it took too long to replace.
Description of Work: They installed our new A/C.

Rating CategoryRating out of 5
quality
2.0
value
4.0
professionalism
2.0
responsiveness
3.0
punctuality
2.0


JENNIFER D.
01/2007
1.0
heating & air conditioning/hvac
  + -1 more
Horrible! This company sucks! The workers showed up to job over 4 hours late with no call from the office letting me know what was going on. When I called I was brushed off and told that they were "getting parts." When I asked if they were at another job finishing up I was told "We don't do that, they work on a job until its finished." Because they were extremely late on day 1, they did not finish. Workers told me they would be back next day, first thing in the morning to finish up. They also left a huge mess in my backyard. Obviously intending to return. 3 hours late into day 2, I call the office and ask where they are. I was told they were on another job. I asked about what she had told me previous day about how their workers work on one job until its done, her response was "The workers are not authorized to tell you that they would come back." Needless to say I threw a fit. Took over a week to schedule job finish, & backyard unusable. Customer Service is non-existent at this company
Description of Work: Removed and installed new heater. Added A/C to system.

Rating CategoryRating out of 5
quality
4.0
value
3.0
professionalism
1.0
responsiveness
1.0
punctuality
1.0

$8,000

JIM C.
07/2006
2.0
heating & air conditioning/hvac, air duct cleaning
  + 0 more
Installed new Carrier furnace and electronic air filter. Immediately the air filter began sparking and popping continuously. Initial installers said this was normal and departing, leaving a mess of sharp metal scraps in our driveway. Crackling from the filter continued - we could open the little door to it and see the electricity arcing. Called Knoll Systems and were told we would get a call back. No call back. Tried this about 15 times, eventually coming to the desperate point of mentioning legal action. Someone finally came out, but couldn't fix it. After about 10 more calls, they finally came out again and replaced the filter unit. The crackling and arcing diminished significantly.
Description of Work: Replace furnace, adding an electronic air filter as well. Clean ducts.

Rating CategoryRating out of 5
quality
2.0
value
2.0
professionalism
3.0
responsiveness
1.0
punctuality
1.0

$8,000

JEFFERY S.
05/2005
4.0
heating & air conditioning/hvac
  + -1 more
HEATER FAILED ON PARTICULARLY COLD FRIDAY NIGHT IN WINTER. KNOLL CAME 2 HOURS AFTER I CALLED ON A SATURDAY MORNING. THEY HAD PARTS AVAILABLE EVEN THOUGH HEATER WAS 25 YEARS OLD. THEY REPLACED THE PARTS, & GOT IT UP & GOING AGAIN QUICKLY & PROFESSIONALLY.
Description of Work: THE HEATER FAILED ON A WEEKEND. THEY RECYCLED PILOT, REPLACED & RETROFITTED SAFETY VALVE, & REPLACED 2 FLEX LINES & ASSOCIATED FITTINGS.

Rating CategoryRating out of 5
quality
5.0
value
3.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$558

CHRISTINA B.
03/2005
2.0
heating & air conditioning/hvac
  + -1 more
EXPENSIVE REPAIR FOR SEEMINGLY SIMPLE ISSUE. LEFT A MESS.
Description of Work: HEATER REPAIR

Rating CategoryRating out of 5
quality
2.0
value
2.0
professionalism
2.0
responsiveness
3.0
punctuality
3.0

$624

MEGAN W.
02/2005
5.0
heating & air conditioning/hvac
  + -1 more
THE JOB WAS DONE ON TIME, THEY NEGOTIATED WITH THE PRICE, AND TURNED UP WHEN THEY SAID THEY WOULD.
Description of Work: INSTALLED AIR CONDITIONING AND HEATING UNITS FOR 3,300 SQ FT HOUSE. VERY EFFICIENT AND THE RIGHT PRICE. TIDY.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$10,000

    Contact information

    5375 CLAYTON RD, Concord, CA 94521

    www.trane.com

    Licensing

    State Contractor License Requirements

    All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our State Contractor License Requirements page.

    *Contact business to see additional licenses.


    Service Categories

    Heating and Air Conditioning,
    Air Duct Cleaning

    FAQ

    KNOLL SYSTEMS is currently rated 2.7 overall out of 5.
    KNOLL SYSTEMS accepts the following forms of payment: American Express,Discover,MasterCard,Visa
    No, KNOLL SYSTEMS does not offer free project estimates.
    No, KNOLL SYSTEMS does not offer eco-friendly accreditations.
    No, KNOLL SYSTEMS does not offer a senior discount.
    Yes, KNOLL SYSTEMS offers emergency services.
    No, KNOLL SYSTEMS does not offer warranties.
    KNOLL SYSTEMS offers the following services: HEATING & A/C

    Contact information

    5375 CLAYTON RD, Concord, CA 94521

    www.trane.com