Approved Pro
Approved Pro

H-TWO-O of Maryland, LLC

About us

Located in Rockville MD, H-Two-O provides homes & business with affordable plumbing & drain services since 1993. We always stand behind what we do. You will be pleasantly surprised, guaranteed.We service Baltimore County, Howard County, Montgomery, and Prince Georges Counties.

Business highlights

Se habla espanol
Emergency services offered
32 years of experience

Services we offer

DIGGING AND EXCAVATION EXPERTS WITH OWN EXCAVATORS AND SHORINGS FOR SAFETY, REPIPE ENTIRE HOUSE and all major and minor repairs for plumbing fixtures, WATER / SEWER REPAIR OR REPLACEMENT, underground water and sewer line repair or replacements/ sewer line and storm water line cleaning/ sewer line video camera inspection from standard residential 3" OR 4" line to public city sewer lines/ , utility line locate service

Amenities

Emergency Services

Yes

Free Estimates

Yes

Warranties

Yes

Accepted Payment Methods

  • CreditCard
Reviews
4.6422 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
51%
4
13%
3
3%
2
1%
1
0%
Showing 126-150 of 422 reviews
Ado T.
Jan 2014
5.0
Yes, I recommend this pro
Amazing service. Thorough explanation, not rushing, delivered as promised. Customer for life!

Brenda Y.
Jan 2014
5.0
Yes, I recommend this pro
$1,365
Very knowledgeable and professional master plumber. Charged a fair price.

Nate Y.
Dec 2013
2.0
My overall personal experience was frustrating. The initial work to repair a water main issue was great. Then on the following work installing water heater and repairing a leaky pipe, I have never experienced a crew that was so unprofessional, lack communication and common courtesy skills expected of a service provider. They will start work and leave without finishing. Once the hook is in, you are at their mercy to come and finish the work when they feel like, i.e., up to two or more weeks of wait period without any word. Also, the work fails first inspection and another waiting game.
Response from H-TWO-O of Maryland, LLC

"It is also frustrating to have a customer not satisfied by our service. It is very hard to see two parties get along if one party forget or miss what was agreed and understand completely before hire to do any repair. We realized that we need to work more on understanding our customers before any work started even if it is agreed to go ahead. We learn something today."


Rodger M.
Sep 2013
5.0
Yes, I recommend this pro
$5,940
I had an old terra cotta sewer line that had collapsed and was dysfunctional. Everyone else wanted to tear up my whole yard to install a new line. H-TWO-O was the only company that could burrow under the ground with minimum disturbance to the lawn and the cost was half the price of the others. I will definitly use them in other projects.

Kathy G.
Sep 2013
5.0
Yes, I recommend this pro
$4,500
Very professional, courteous and pleasant to deal with. Plan to use them again. Would definitely recommend them to my friends.

Beverly P.
Sep 2013
5.0
Yes, I recommend this pro
Very thorough, excellent camera search for problem (it turned out to be not a "break in the line", but a total root blockage at the entry cell for the septic tank. They located the tank (location previously unknown) by using their 'sound' detector, dug down 3', opened the entry and removed the huge mass of compacted roots. Then, cleaned off the top area of the tank, installed lifts for the two access places, built up a circular channel with a lid for future access for pumping out the tank. Great work, neat, and creative! Their cost was reasonable...I would highly recommend this company.

Val H.
Aug 2013
5.0
Yes, I recommend this pro
$3,250
The leadrer of "H2O" , Mr. Wen, was extremely knowledgible and very professional. He explained to me the nature and extent of my needed repairs. The repairs were completed in a very timely manner, the inspection was completed and there were no after repair issues.

Erich W.
Aug 2013
5.0
Yes, I recommend this pro
$5,270
Communication was great and pricing was quite fair. They understood the nature of the problem (which the first plumber I hired did not) and did an excellent job replacing the main sewer line. Haven't had any problems with plumbing since; what a relief!

Anne H.
Aug 2013
5.0
Yes, I recommend this pro
He was excellent!!!

GRIGORIY S.
Aug 2013
5.0
Yes, I recommend this pro
$2,221
they are just good

David B.
Jul 2013
5.0
Yes, I recommend this pro
Efficient, professional. 5+

Evelyn W.
Jun 2013
N/A
Yes, I recommend this pro
$600
They arrived at the time that was scheduled, knew what they were doing, had the proper equipment to do it. They offered advice concerning plumbing. They cleaned the area upon completion of the work.

Robert C.
Jun 2013
N/A
Yes, I recommend this pro
$4,500
Win was very responsive and did an excellent job.
Response from H-TWO-O of Maryland, LLC

"Thank you for your feedback!"


Kyndra W.
May 2013
N/A
Yes, I recommend this pro
$2,067
Professional.responded and resolved issue quickly. Reasobable price for top notch service. Highly recommended. I have already referred them to a neighbor.

William S.
May 2013
N/A
Yes, I recommend this pro
I was happy with H-TWO-O of Maryland. Good job!

Lowell O.
Mar 2013
N/A
Yes, I recommend this pro
$4,563
I had a broken sewer line and contacted H-TWO-O. They came out and used a locator instrument device to locate the break in my back yard. Then they gave me an estimate for replacing the line from the break to the sewer main that was 37% lower than an estimate from a plumber who lacked a locator and would have dug up my whole yard. Then they used a machine that pulled a new pipe through the old sewer line thereby excavating only at the break and where it joined the sewer main. Done expeditiously and cleaned up nicely.

Chakri K.
Mar 2013
N/A
Yes, I recommend this pro
$1,800
They did an excellent service in repairing my water pipe breakage and replaced it professionally. Prompt service and reasonable fees. Estimate was exact.

David S.
Jan 2013
N/A
Yes, I recommend this pro
$260
In Jan 2013, I contacted H-TWO-O about a kitchen faucet replacement that I needed help with. They came out right away, after hours to assess the situation. They came back the next day to do the work. Win was the name of the plumber dispatched - he was great - very through and thoughtful. I would contact them again for work in the future. - David

JAMES T.
Dec 2012
N/A
Yes, I recommend this pro
THEY CAME GAVE QUATE, AND COMPLETE THE WOK IN A TIMELY MANNER WITHOUT TRYING TO PAD THE PRICE. ALL WORK AREAS WERE CLEANED AND LEFT IN GOOD CONDITION.

Eugene D.
Dec 2012
N/A
Yes, I recommend this pro
$1,800
Completed water main OK; but had to call several time to get landscaping completed. Still have a mound in my yard...
Response from H-TWO-O of Maryland, LLC

"We had only only one call to do seeding in the yard. We were there as we said very precisely. Thanks There is no mound in your yard as we have recorded of 12/10/2012. thanks"


Travis F.
Dec 2012
N/A
Yes, I recommend this pro
$2,000
No comment.

Anna S.
Dec 2012
N/A
Yes, I recommend this pro
Quick, efficient, knows what he is doing.

Arletha F.
Nov 2012
N/A
$1,220
For my experience, the customer service was terrible. I was given 4:30 - 6:30 for the project to begin, they started at 8:30 and finished after 11:00. During the inspection, the inspector told me that the work was not completed properly (not a big deal as 95% was done correctly); but they also did not leave the permit. I have been in contact with the company who was suppose to come this past Sat to make the corrections. I was called Sat. morning and was told that they were working on a big water main break. Bottom line we agreed to have the work completed between Mon - Wed. I'm still waiting to hear from them. They're closed until Mon.

Hanny K.
Nov 2012
N/A
Yes, I recommend this pro
It was an excellent experience. They were very professional and they did a good job.

Carola M.
Oct 2012
N/A
Yes, I recommend this pro
Amazing! He was professional, left everything better than ever. No extra fees and warranty
...
...
Showing 126-150 of 422

Licensing

Insured

Licensed*

Trade License Number

21929

Trade License Locale

MD

Trade License Expiration

02/01/2026

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 Find Licensing Requirements page.

*Contact business to see additional licenses.

FAQ

H-TWO-O of Maryland, LLC is currently rated 4.6 overall out of 5.
Monday: 8:00 AM - 9:00 PM Tuesday: 8:00 AM - 9:00 PM Wednesday: 8:00 AM - 9:00 PM Thursday: 8:00 AM - 9:00 PM Friday: 8:00 AM - 9:00 PM Saturday: 8:00 AM - 6:00 PM Sunday: Closed
H-TWO-O of Maryland, LLC accepts the following forms of payment: CreditCard
Yes, H-TWO-O of Maryland, LLC offers free project estimates.
No, H-TWO-O of Maryland, LLC does not offer eco-friendly accreditations.
No, H-TWO-O of Maryland, LLC does not offer a senior discount.
Yes, H-TWO-O of Maryland, LLC offers emergency services.
Yes, H-TWO-O of Maryland, LLC offers warranties.

Contact Information

21140 Woodfield Rd, Gaithersburg, MD 20882

Service Hours

Sunday:Closed
Monday:8:00 AM - 9:00 PM
Tuesday:8:00 AM - 9:00 PM
Wednesday:8:00 AM - 9:00 PM
Thursday:8:00 AM - 9:00 PM
Friday:8:00 AM - 9:00 PM
Saturday:8:00 AM - 6:00 PM
Share project details to get started.