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Top-Rated Tankless water heater installers in Allentown - Updated Nov 2026

Avatar for H L Bowman
H L Bowman
4.6(
430
)
Tankless Water Heater - Install

Serving Allentown, PA and surrounding areas

Approved (Corporate)

In business since 1946

Free estimates

Emergency services offered

"They were very fast to respond to my call and were able to send someone within two hours. The replacement of the hot water heater went well. For the water pipes they use copper crimp fittings instead of soldering so it will be interesting to see how that holds up over the years. My only concern is how they ran the gas line. They use Gastite CSST which is fine, but the CSST is run so it goes downward then back up and then downward again before it enters black pipe that has a moisture trap. It seems to me that if there is any moisture it will end up in the CSST instead of the trap. In addition, there is a pretty good bend in the CSST right before it goes into the trap section. Also, Teflon tape was used on the all the joints instead of joint compound. I think I will get someone from a different company to come in and take a look at it."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

461 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for M.C.R PRO LLC
M.C.R PRO LLC
4.7(
94
)
Tankless Water Heater - Install

Serving Allentown, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Old water heater tank was leaking. Called MCR Tuesday morning. Person on phone connected me to plumber, Josh. He came later in the afternoon and spent a lot of time discussing possible install options. Later, in the evening, Josh sent quotes for the two main options we had discussed. The prices were in the range of other quotes. After talking with my wife, we decided to go with one of Josh's proposals. The choice was largely influenced by the thoughtful, thorough work Josh had shown during his visit and the timely, complete proposals he sent, and, of course, the price. I signed the agreement form that was included with the proposal and paid the required deposit. Wednesday morning Josh and Jordan showed up a little past 11am. They went right to work, removing the old heater and installing the new. Josh's work was as good as his visit had suggested. The project was completed shortly after 2pm!"
Plumbing Project
Plumbing Project
Plumbing Project
Plumbing Project
Plumbing Project

+75

Response time5 hrs
Response rate100%
Recommended by38%of homeowners
Avatar for R. J. Groner CO.
R. J. Groner CO.
4.5(
86
)
Tankless Water Heater - Install

Serving Allentown, PA and surrounding areas

Approved

In business since 1929

Free estimates

Emergency services offered

"RJ GRONER did a great job installing my new heat pump system! From start to finish, including helping me with selecting the correct equipment and through to insuring that everything was working correctly, everyone involved was extremely professional, knowledgeable, and a pleasure to work with. Nick and Dayman truly impressed me with their hard work to insure that the installation went well and was done correctly . Great job! David S."
Air Conditioner
Boiler
Oil Boiler
Well Tank
Gas Furnace

+3

Recommended by62%of homeowners
Avatar for Maitz Home Services
Maitz Home Services
4.1(
122
)
Tankless Water Heater - Install

Serving Allentown, PA and surrounding areas

Approved

In business since 1964

Free estimates

Emergency services offered

"Would hire again and recommend their services to anyone. I thought I had a simple water heater leak. But my problem was a bit more extensive. Maitz both walked me through it (step by step) and quoted several repair options/services to me. The gentleman even went back and saved me over $400.00 on the originally quoted service. Professional, fast and excellent communication backed by solid work. Very strong warranty too. Thank you Maitz!"
13 neighbors recently requested a quote
Recommended by84%of homeowners
Kleppinger Home Services
5.0(
10
)
Tankless Water Heater - Install

Serving Allentown, PA and surrounding areas

Approved

In business since 2024

Offers commercial services

Customers say: True professional

"Excellent! I am new to the area and having Mark on my side has been a blessing. Not only does he knows his stuff and provides a competitive price but he is also very professional and kind. He made sure I passed the home inspection, did washer and dryer connections, and service my heating system. 100% recommended!"
Response time12 hrs
3 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Resistance Construction L.L.C.
Resistance Construction L.L.C.
4.6(
8
)
Tankless Water Heater - Install

Serving Allentown, PA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

I've been an electrician for nearly 10 years and I'm an owner-operated company based out of Quakertown. There is no job too small for me. A handful of jobs I take care of are outlets, switches, lights, ceiling, bath, and attic fans, electric car chargers, underground electric for outbuildings, electrical panels, service upgrades, troubleshooting and more.

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+30

Response time6 hrs
1 neighbors recently requested a quote
Avatar for Top Notch Plumbing, LLC
Top Notch Plumbing, LLC
5.0(
2
)
Tankless Water Heater - Install

Serving Allentown, PA and surrounding areas

Approved

In business since 2023

Emergency services offered

Small jobs welcome

"New to the area, we called Ferdinand at Top Notch Plumbing LLC for a variety of plumbing needs around our home. We could not be happier! He took care of each issue in such a timely and professional manner. He can handle whatever problem is put in front of him. Thankful we found Top Notch Plumbing LLC!"
Shower install
Shower install
Installed new fill valve and flapper
Install new fill valve and flapper
Response time6 hrs
Response rate93%
Pump and Go
5.0(
1
)
Tankless Water Heater - Install

Serving Allentown, PA and surrounding areas

Approved

Emergency services offered

Small jobs welcome

Credit card accepted

We specialize in plumbing services, repairs, inspections, installations, drain cleaning, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project

+1

Response time2 days
Response rate100%
2 neighbors recently requested a quote
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