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Cornerstone Plumbing, LLC

Plumbing, Natural Gas Lines, Water Filtration and Softening,

About us

Cornerstone Plumbing is an owner operator business. We are professional and work with integrity. For your convenience we accept payment in cash, check or credit cards.

Business highlights

22 years of trusted experience
Emergency Services Offered

Services we offer

Cornerstone Plumbing is a full service commercial and residential plumbing company. Some of services we provide are new construction, remodel and additions, leaking faucets, water line re-piping, drain cleaning, sewer line replacement, water heater installation (tank style or tank less), water heater maintenance and servicing, garbage disposal installation, gas line installation, toilet repairs

Amenities

Free Estimates
Yes
Warranties
Yes
Senior Discount

10%

Emergency Services
Yes


Accepted payment methods

American Express
Check
Discover
MasterCard
Visa

Reviews

4.415 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
67%
4
0%
3
0%
2
7%
1
27%


Rating CategoryRating out of 5
quality
4.6
value
4.8
professionalism
4.4
responsiveness
4.3
punctuality
4.4
Showing 1-15 of 15 reviews

Anastacio H.
11/2020
1.0
water softeners, gas leak repair
  + 0 more
American Home Shield designated them to work on my heater. The tech came Oct 31 and said I needed a heat regulator. After a week I called and was told it was back ordered. I called after 3 weeks almost a dozen times only got a voicemail, no call back. I called American Home Shield 3 times and they could not get a response. I emailed without any results. Finally because it was getting cold outside and had company coming for Thanksgiving I decided to order the part from Ferguson Plumbing Supply snd got the part delivered in 3 days! I paid a local plumber to install it. I ended up paying a $100 service fee to Cornerstone, them $700 for the part and installation which insurance would not cover. So if you use this company don’t say I did not warn you
Description of Work: Water heater part rrplaced

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

$100

Susan M.
07/2019
1.0
plumbing
  + -1 more
First, it took me a month to get on the schedule to get an estimate. John showed up when over the plans with me and reviewed the work I was requesting. Said that he would get back to me with a quote for the work and that was over a month ago. Never got the estimate for moving all the plumbing to the new master bathroom. I even called to see if they had the estimate yet and the person I talked to said she would have someone get back to me. Never happened. Cornerstone came highly recommended.
Description of Work: Needed a quote to add plumbing to a new addition

Rating CategoryRating out of 5
professionalism
1.0
responsiveness
1.0
punctuality
5.0


Jim W.
05/2019
1.0
plumbing
  + -1 more
John, the owner, was scheduled to come and give an estimate on 4/24/19. He never showed up and no one called to inform me he wasn’t coming. I contacted them and they said someone would call me back to reschedule. No one called. I called them again on 5/20/19. The person apologized for no one getting back to me. Another appointment was set up for him to give an estimate on 5/23/19. I was told I would be his only appointment for the day and he would be here by 10:00am. Never showed up again and never heard from anyone. Called them at 3:30 to express my displeasure. I won’t be contacting them again. I would never recommend them. Lost two days of work because of John’s unprofessional way of treating customers.
Description of Work: Needed a lp line run for a gas range.

Rating CategoryRating out of 5
professionalism
1.0
responsiveness
1.0
punctuality
1.0


Jill C.
06/2018
5.0
plumbing
  + -1 more
Called to have a cracked and leaking garbage disposal replaced. They were able to set up an appointment with-in two days. I’m sure if it had been an emergency an effort would have been made to accommodate us sooner. (We already had a new disposal to install, but they would have supplied one for us if we didn’t.) Jeff arrived promptly after calling to say he was on the way. He did an excellent job and was also willing to take a look, and give his expert advice, on another problem we had with a loose tub faucet. All in all we were more than satisfied with our experience and would highly recommend Conerstone Plumbing to friends and family.
Description of Work: Replace garbage disposal.

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
$115

Kendell B.
04/2018
5.0
plumbing
  + -1 more
Our plumber arrived on time as promised, completed the work in a timely fashion, and cleaned up after himself-even folding the towels I had down to collect any water. Would definitely hire again.
Description of Work: Repair leaking toilet-change gaskets

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
$130

Response from Cornerstone Plumbing, LLC
Thank you for your business.

Catherine O.
10/2017
5.0
plumbing
  + -1 more
Fast to respond. They came out quick and were very professional.
Description of Work: Phenomenal company. Very responsive! They also suggested a repair instead of a total replacement of a faucet set so they saved us a ton of money. Refreshingly honest and helpful.

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

Willard H.
07/2017
1.0
plumbing, gas leak repair
  + 0 more
They gave me an appointment with a 3 hour window for them to arrive. Jon Mosher was a no show. I received no contact or phone call. Called the office near end of appointment window to find out if they were going to show up. Was told by their office, they would get right back to me with a status. They never got back to me. I should bill them for my time.
Description of Work: Requested to quote generator gas line install.

Rating CategoryRating out of 5
responsiveness
1.0
punctuality
1.0


William B.
06/2017
2.0
plumbing
  + -1 more
It did not happen because he must have not been interested in doing the job- but he never said so.
Description of Work: I tried to get a proposal for replacing my water heater and to replace a bath tub. He came to my house, but never quoted a price or indicated an interest in doing the job. He just disappeared.

Rating CategoryRating out of 5
professionalism
3.0
responsiveness
2.0
punctuality
2.0


Richard W.
09/2016
5.0
plumbing
  + -1 more
unknown
Description of Work: They were very professional and on time. I would hire them again.
Rating CategoryRating out of 5
Yes, I recommend this pro

daniel C.
06/2016
5.0
plumbing, gas leak repair
  + 0 more
We had an exceptional experience with Cornerstone. We found that their price quote was within reason and their installation of the tankless hot water heater to be superb. There were a couple of check-ups required after the system was installed and Jon Mosher, the owner, was able to follow-up. The installation was of high quality without any problems. We are happy with the tankless hot water heater and would use Cornerstone in the future.
Description of Work: Cornerstone removed two hot water heaters and replaced them with a Rinnai tankless hot water heater and ran the hot water heater gas line to the point of connection to the gas source.

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
$3,600

Kirsten A.
11/2015
5.0
plumbing
  + -1 more
unknown
Description of Work: Under sink plumbing repair after serious troubleshooting.

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
$200

Eileen and Mike M.
11/2015
5.0
plumbing
  + -1 more
Excellent service! Was very good.
Description of Work: Install a gas tankless water heater

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$2,700

john J.
10/2015
5.0
plumbing
  + -1 more
Jon did a great job. Neat and efficient.
Description of Work: Installed a whole house water purifier

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
$600

Pamela B.
05/2015
5.0
plumbing
  + -1 more
.
Description of Work: .
Rating CategoryRating out of 5
Yes, I recommend this pro

JUDY D.
05/2015
5.0
plumbing
  + -1 more
John Mosher, the owner was recommended by a friend, I called, he came to my house, gave me an estimate and started the job immediately. He was very professional and the job was completed the same day. Everything was cleaned up when he finished. He would have included repairing the dry wall, but I elected to have my handyman complete that part of the job. I was not hesitate to call or recommend Cornerstone Plumbing.
Description of Work: Installed main water shut off in laundry room. My main water shut off was in the front yard and extremely difficult if not impossible for me to shut off if needed.

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
$450

    Contact information

    PO Box 4272, Beaufort, SC 29903

    http://www.cornerstoneplumbing.org

    Service hours

    Monday:
    9:00 AM - 4:30 PM
    Tuesday:
    9:00 AM - 4:30 PM
    Wednesday:
    9:00 AM - 4:30 PM
    Thursday:
    9:00 AM - 4:30 PM
    Friday:
    9:00 AM - 4:30 PM

    Licensing

    Insured

    Licensed*

    Trade License Number
    M113332
    Trade License Locale
    Plumbing
    Trade License Authority
    South Carolina
    Trade License Expiration
    10/31/2017

    Eco-friendly Accreditations

    LEED Accredited Professional
    No
    Energy Star Partner
    No
    EPA Lead-Safe Certified
    No
    Use Green Products or Work Practices
    Yes
    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

    Plumbing,
    Natural Gas Lines,
    Water Filtration and Softening,
    Drain Cleaning

    FAQ

    Cornerstone Plumbing, LLC is currently rated 4.4 overall out of 5.

    Monday: 9:00 AM - 4:30 PM

    Tuesday: 9:00 AM - 4:30 PM

    Wednesday: 9:00 AM - 4:30 PM

    Thursday: 9:00 AM - 4:30 PM

    Friday: 9:00 AM - 4:30 PM

    Cornerstone Plumbing, LLC accepts the following forms of payment: American Express,Check,Discover,MasterCard,Visa
    Yes, Cornerstone Plumbing, LLC offers free project estimates.
    Yes, Cornerstone Plumbing, LLC offers eco-friendly accreditations.
    Yes, Cornerstone Plumbing, LLC offers a 10% senior discount.
    Yes, Cornerstone Plumbing, LLC offers emergency services.
    Yes, Cornerstone Plumbing, LLC offers warranties.
    Cornerstone Plumbing, LLC offers the following services: Cornerstone Plumbing is a full service commercial and residential plumbing company. Some of services we provide are new construction, remodel and additions, leaking faucets, water line re-piping, drain cleaning, sewer line replacement, water heater installation (tank style or tank less), water heater maintenance and servicing, garbage disposal installation, gas line installation, toilet repairs

    Contact information

    PO Box 4272, Beaufort, SC 29903

    http://www.cornerstoneplumbing.org

    Service hours

    Monday:
    9:00 AM - 4:30 PM
    Tuesday:
    9:00 AM - 4:30 PM
    Wednesday:
    9:00 AM - 4:30 PM
    Thursday:
    9:00 AM - 4:30 PM
    Friday:
    9:00 AM - 4:30 PM