Installed quickly and knew what they were doing. I am an amateur plumber and I learned quite a bit about green engineering from these guys. I will likely use again read more

Tankless Concepts - Utility closet - Water Heater Installation/Repair Near Me - Falls Church, Virginia

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Excellent experience. Brent guided us flawlessly through the process, explained our options, made recommendations, and told us what to expect. They removed two old water heaters, and installed a new tankless system. The crew that did the work were a pleasure to have in the house, and did an excellent job. The system has worked perfectly so far. Very glad we found Tankless Concepts and would thoroughly recommend them. read more

I bought a Rinnai tankless hot water heater from Tankless Concepts probably 10 years ago. Had saved me lots of $ on my gas bill as you only heat the water when you need it. Today I had Tankless Concepts come by for a service call. Second time since I bought it. Unit still works fine, just a tuneup. Their service rep arrived on time. Polite and left the area neat and clean. Even made an adjustment to another system that they did not install. What is not to like. Glad I hired them 10 years ago and still happy with their service today. I'd recommend them to anyone looking to improve their hot water system. read more

Tankless Concepts - Rinnai, The hot way to heat water - Water Heater Installation/Repair Near Me - Falls Church, Virginia

Great customer service!! Love the entire team! Kudos to them!! I will hire them again.

I recently had the pleasure of working with Tankless Concepts, and they exceeded my expectations. Their expertise, professional installation, and communication was great .They made the process seamless. My tankless water heater has been a game-changer, and I highly recommend Tankless Concepts for their outstanding service. read more

Linda is the owner and was wonderful. She worked with me well during Covid in terms of planning and getting a feel If my 100 plus year old home Could Accommodate at tankless water heater ! We took advantage of the DC credit as well for energy saver. One estimator came to study the basement and double check where my gas lines are as well as how my home's Plumping lines run from the old Water tank. All worked out well. So Glad I made the move! Loved The fact it was a female run company and having the years of experience gave me great confidence as I didn't have any other estimates due to Covid. read more

I called Tankless Concepts for a "second opinion" on a recommendation by another contractor that I install a whole-house water filter to protect my Navien tankless. They discovered that the other contractor had not replaced the part he had charged me for. They installed the part that needed to be replaced. Plus Tankless advised that I did not need the water filter. The service tech was 100% transparent about everything he was doing, and arranged to get paid under warranty by Navien rather than charging me for this service. I don't know what more I could ask from this company. It went above and beyond to correct the problem. 100% would call them again. read more

GREAT PRODUCT. GREAT PEOPLE. SAVED OVER $2,000 ON HEATING THE FIRST YEAR, We hired Tankless Concepts to replace our oil-fired heating boiler and gas-fired tank-style hot water heater with a gas-fired NAVIEN combination boiler and tankless hot water heater, after meeting with four contractors and reviewing three proposals. We saved over $2,000 on our heating costs the first year. The old system used four zones to unevenly heat our 80-year old; 2,300 square foot; 4-bedroom; 3-1/2 baths; house. The new two-zone system, developed from a room-by-room heating analysis of our existing radiators and cast iron baseboards, heats the house evenly. The hot water is endless. As a retired engineer, I was impressed by their detailed technical and product knowledge. They understood and answered all my questions. They developed innovative low-impact cost-effective boiler venting solutions for this old brick colonial. The installation started, proceeded, and completed on the planned schedule and at the agreed cost. There were no surprises. We are reaping substantial savings. With the old equipment, our monthly non-electric energy costs were about $230 a month ($2,760 a year) for the oil-fired boiler and about $25 a month ($300 a year) for gas-fired hot water, cooking, and clothes drying. With the new equipment, we heated the house through the entire 2019-20 heating season for about $600. read more

Tankless Concepts - The new system - Water Heater Installation/Repair Near Me - Falls Church, Virginia

Installed a new tankless water heater to replace our gas water heater. The job was done very well with professional workers. Everthing was exained before and after installation. I would recommend them for anyone's future work. read more

Very helpful and efficient! Extremely knowledgable, didn't get the feeling they were upselling. And very reasonably priced -- had other orgs come in to look but couldn't come close to the price offered by Tankless Solutions. They worked quickly and cleaned up after themselves. Looks great, works well, and they organize the inspector as well. read more

Excellent company! They are on time, excellent communicators, and do great work. Thank you!

I'm not sure that 5 stars can really do Tankless Concepts justice. They were the best to work with not just because the product and service were excellent but because they were prompt, professional and extremely knowledgeable. I wish more companies were like Tankless Concepts. If you're going to install a tankless water heater, I honestly wouldn't use anybody else. read more

I had a tankless water heater installed in my old house and I just moved to this house. The water heater was having issues, so I called several companies for a tankless water heater, and they were by far the best company. I had concerns about how long it takes to get hot water in this big house. They gave me great recommendations for recirculation systems and wireless remote / smart app to control the system. Now I can just set the temp, enable recirculation a couple minutes before turning the shower on full hot and enjoy my shower at the exact temp I want for as long as I like. They know what they are talking about, did a top-notch professional install and were much less expensive than the other two companies. I highly recommend Tankless Concepts! read more

A forum recommendation lead me to contact Tankless Concepts to discuss an install in late January of this year. The installation was completed in early February, and I don't think 5 stars really does the company justice. Impeccable customer service, responsiveness and patience in explaining and discussing the pros and cons of the different models of tankless water heaters available, the company is really a pleasure to work with. Further, as they are a local company in the Northern Virginia area, I was also very happy to be able to support an awesome local business. Their instatllation was flawless and I am overjoyed to finally have the tankless system I have wanted for a long time There are many reasons for choosing to install a tankless water heater and if you are considering it or even curious about them, you should do yourself a favor and speak with Tankless Concepts first. read more

Our old gas water heater cracked and after some research we decided to go tankless! Their team from purchase to install was excellent! I had a ton of questions; they answered each one with patience and walked me through the entire process. I even got a rebate from DC for upgrading to tankless! This is a local company and I'm glad to be their customer! Thanks again!! read more

Our home came with a new tankless water heater that started having problems after a gas company visit. I thought it might need repair and contacted Tankless. Unfortunately they didn't service my brand but they provided some very helpful suggestions for pursuing the matter further. Several months later we decided we'd given up on our water heater and I contacted Tankless again. We arranged to have someone come out and provide an estimate for what it would cost to install one of the models they offer. A Very informed young man came and took some notes and pictures. There was a question about whether my home had enough gas pressure to support a tankless device. Linda at Tankless leveraged her multiple connections at the gas company to get to the root of the problem. Within days we had a gas company visit and the second seems to have solved the problem. We were really at wits end and found that nobody besides this company had any clue of how to proceed. We are very grateful for their assistance and selfless manner in which they operated to help us.As soon as our water heater conks out for good this is the only company we would go to for a replacement. read more

Excellent communication, reasonable pricing, and top quality work! We used Tankless Concepts to help us switch from electric to gas, and we are very happy with how everything turned out. Linda Cahill helped guide us through the scheduling and permit process, and Brent Talley and his crew came out and installed a new gas line. His team ran an internal line through a bulkhead so there was no ugly (and potentially dangerous) gas line running along the outside of our house (that kids could hang on). He also recommended a 2 PSI gas meter (which helped ensure that we had sufficient pressure to power all of our appliances simultaneously). Lastly, he returned to our house the same day the permit was improved to hook up our appliances so that we would be able to use them over the weekend. Thank you, Tankless Concepts!! read more

Installed Tankless water heater, responsive, tidied up afterwards. Very helpful throughout the process

Can't speak highly enough of Tankless Concepts, especially Linda. She's extremely knowledgeable and was very transparent and responsive throughout the entire job from planning to execution. The installation team did a great job as well; very courteous and professional. read more

After completing a whole house renovation, I neglected to check the water temperature on each faucet before signing off on the plumber. Tenants moved in and told me that they were only get lukewarm water at best from the shower, but hot water from every other faucet. Needless to say my mind was racing and thoughts of opening walls and examining water supply lines was running through my mind. My original contractor would not take my calls, but since my tenant needed hot water, I needed an alternative. I looked up certified Rinnai tankless hot water installers and two showed up; Tankless Concepts was one. I left messages for both and Tankless Concepts was the only one to call me back. After a few minutes on the phone, it was diagnosed that the issue could be the regulation valve, which controls the flow of hot water in the shower. With that knowledge, I asked my neighbor who was a plumber - Tankless Concepts does not do traditional plumbing - to take a look at it. He solved the problem with the friends and neighbor discount! Any other company could have used my lack of knowledge in this area to take advantage of me. When I do my next renovation project, I will definitely be giving my business to Tankless Concepts. Thanks guys!! read more

Our tankless water heater stopped working, so we had no hot water. We had another plumbing company come out three times to look at it, and they would basically restart the system. It would work for a day or less after the reset, and then would stop working completely again. It became apparent that they really didn't understand tankless systems and couldn't get to the root of the problem. Out of desperation, I searched for companies with tankless experience and came across Tankless Concepts. While the troubleshooting did take a couple of visits, Brent was determined to get our system up and running again (and it has been running now for 2 months without any further issues). When it was finally determined that we needed a new computer to make the system operate reliably again, he worked with Navien to get them to provide us one free of charge, even though we were outside of our warranty period. Brent was always available by phone/text to let me know when parts had arrived and when he would be able to stop by, and he was always on time and worked quickly. And I was really pleased to see that the final bill was really reasonable. I hope that we won't have any issues in the future, but if we do, I won't waste any time with other plumbers. Tankless Concepts will be my first call! read more

After a bunch of drama with my Navien combi boiler and the original installation company failing to fix it, I called Tankless Concepts. Wow, what a difference. Knowledgeable, helpful, diagnosed the problem quickly (faulty installation by another company), helped navigate the warranty with Navien, was able to clearly and easily explain the issues, and provided great follow-up. I won't use anyone else from here out. read more

I waited 9 months before I write this review. We discovered our Rinnai RU98 unit was not working when we got home after work yesterday. It showed code 11, which meant the the ignitor was not working. We had to take cold showers. The next day, a tech was sent to diagnose the problem. Rinnai was unwilling to pay for overnighting a replacement part so that it would arrive on Saturday, which meant that we would have had to wait 3 more days until we get hot water. Mind you that the unit was under warranty for parts and labor. It was a great thing that TC decided to get a new unit and swap out the broken part so that we wouldn't have to wait any longer. TC gets two thumbs up, while Rinnai gets two thumbs down for poor reliability and poor customer service and poor tech support. read more

Tankless installed a tankless water heater for me earlier this year. Installation took 2 days and the team was professional and easy to work with. I like that they even provided guidance about how to secure all the available rebates. Price was in the same range as other estimates. Overall great experience read more

Beyond being knowledgeable, these guys are problem-solvers who stay to get the job done.

They repaired my tankless water heater very quickly. Brent was very knowledgeable and courteous. The work was professional, quick and fairly priced. I would recommend them to anyone. read more

Excellent service - quick, reasonably priced! Had a minor leak which was fixed. They also replaced all the O-rings to ensure they wouldn't leak in the future. They always go above and beyond!! read more

I had an excellent experience with Tankless Concepts and cannot recommend them highly enough. Another contractor (who actually installed the unit only 6 years ago) declared my Rinnai heater dead after a recent cold snap, suggesting I needed a $4000 replacement. I sought out Tankless Concepts for a second opinion and am delighted I did. Brent was able to solve the problem in the course of a single service call. From start to finish everyone involved in this business was prompt, courteous, and -- what matters most -- totally effective at what they do. My only regret is I didn't call them first -- which I definitely will do in the future. read more

My tenant called to inform me of a leaking hot water heater in the condo they rent from me. The hot water heater provides space heat (aqua therm system) and domestic hot water. By the end of the day I had to shut off the gas and the tenants moved out until I could get heat and hot water back into the condo. For some time I had intended to research tankless hot water systems but now my back is against the wall. A top-notch plumber who does not install tankless systems lost an opportunity to install a new hot water heater when they highly recommended that I call Tankless Concepts if I wanted a tankless system. Within a couple days my condo was converted to Navien and my tenants were back home. The techs were topnotch and did a professional job. The office staff was knowledgeable, gracious, and went the 2nd mile to help me. The Navien system is working great. I have an appointment with Tankless Concepts for next week to price out a Navien for my house and one for where I work. Can't praise them enough. read more

I had an excellent experience with Tankless Concepts. They came in and replaced my old tank water heater with a Rinnai tankless a little over a year ago. They were completely forthcoming with all the details of the install from how he made the decision of where to install the exhaust (with my input) to the breakdown of the costs. All permits, inspections, and Washington Gas interactions were handled professionally and efficiently. My gas line from Washington Gas had to upgraded to accommodate the new tankless heater. The actual install took less than a day and couldn't have gone smoother. The workmanship is beautiful. And now, more than a year later, I have had no problems and have been very satisfied with my decision to install a tankless water heater. read more

We had a fantastic experience working with Tankless Concepts. Our tradtional water heater went out shortly after moving into our new house - after a few frustrating attempts to fix it and less than adequate customer service from other plumbers, we decided to upgrade to an on-demand water heater. I found out about Tankless Concepts via the Better Business Bureau web site which I cross-checked against Yelp and Angie's List. They returned my calls promptly, understood my need for great customer service, sent a knowledgeable, professional, senior installer to quote the job and recommend a water heater model and got it installed quickly. All permits prior to the start of work and coordination with the gas company was taken care of and I was given clear instructions on the follow up inspection. The whole thing took about 8 days from start to finish. read more

Brent provided superb customer service when our Rinnai tankless heater seemed to be not sending hot water to our air handler. Our A/C technician couldn't find anything wrong with the air handler or pump, and Brent walked me through a couple ideas on the phone before deciding whether to come. In the end, he realized a simple tapping of a valve connecting the Rinnai to our a/c unit that our condo builder had installed in a weird position did the trick. The fact that he called me back on a Saturday morning and tried to troubleshoot before charging me for a visit, and came on short notice once I hit a dead end with the A/C unit, made me a very grateful customer. read more