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

Avatar for Mahon Plumbing
Mahon Plumbing
4.6(
199
)
Tankless Water Heater - Install

Serving Manchester, MD and surrounding areas

Approved

In business since 1994

Emergency services offered

Warranties offered

"It went amazing. Paid the extra bucks for emergency service, because of our smallish waterfall, looking leak, sprouting from a bathroom pipe, enough to puddle water onto our basement/laundry room floor. Initially, spoke to Chris, who was pleasant and upfront with the per hour fees, for emergency services. He sent us Tim, who was hesitant at first, due to the location of the leak, but his experience and knowledge, enabled him to decipher the location of our leak and fix it. A quick trip to Lowes, where he promptly returned and in 90 minutes, the job was done. A week later and the valve is bone dry. Yay!!!"
Tankless water heater installation
Tankless Water Heater Installation
Commercial drain cleaning
Sewer Line Video Inspection
Water heater replacement

+30

Response time7 hrs
Response rate100%
Recommended by92%of homeowners
Markool Heating & Cooling, LLC
4.7(
18
)
Tankless Water Heater - Install

Serving Manchester, MD and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"Turned on the AC this morning to find out was blowing hot air, called up a few different companies who wanted minimum 100 bucks to come out blah blah blah, called up Markool and got connected with a technician. The technician helped me troubleshoot the issue, and have me a quick fix that will last until they make it out tomorrow to do the permanent fix. I'll be using them for all my AC needs in the future!"
Response time1 day
16 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Horizon Services, LLC (MD)
Horizon Services, LLC (MD)
3.8(
1,468
)
Tankless Water Heater - Install

Serving Manchester, MD and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"Hello, I am requesting assistance from a licensed plumber/gas fitter for gas service restoration at my property: 1239 Maple Ave. Baltimore, MD 21227 BGE has determined that the prior gas service was abandoned and is now processing the project as a new gas service line and exterior meter installation. BGE will be meeting me on-site on Tuesday, June 9, 2026, at 9:00 AM to review and approve the proposed exterior meter location. I need a licensed plumber/gas fitter who can either attend that BGE site visit or come immediately afterward to evaluate the work required on the customer side of the gas system. The scope of work includes: - Inspecting the existing gas piping to determine whether any portion can be safely reused; - Extending, repairing, or replacing internal gas piping as needed; - Establishing the new customer-side gas connection point for the exterior BGE meter; - Pulling the required gas/plumbing permit; - Performing the required pressure test; - Coordinating the requir"
Horizon Plumber under sink
Horizon Plumber in Kitchen with homeowner
Horizon Plumber crawl space
Recommended by89%of homeowners
Avatar for Bamford Plumbing and Heating Inc
Bamford Plumbing and Heating Inc
4.8(
65
)
Tankless Water Heater - Install

Serving Manchester, MD and surrounding areas

In business since 2009

Emergency services offered

Warranties offered

"I have been using Bamford Plumbing for over 10 years at various different properties. Doug has been a key part of my team to manage multiple different rental properties as well as my own home. He is the first person I call for a variety of different issues that come up. Highly recommend!"
Do you know if your sump is still working? We also have sump pumps avialable to protect you from power outages. That’s right no power no problem forget about the “battery back up” sump pumps if you have municipal water supply this is the way to go call today for details !
Tankless
Power Vent
Gas and Electric
Tree roots giving you problems with your drains? Have us come out today and try a Rootx root treatment !

+2

Recommended by98%of homeowners
Avatar for AQUA PLUMBING & HEATING CO
AQUA PLUMBING & HEATING CO
4.5(
85
)
Tankless Water Heater - Install

Serving Manchester, MD and surrounding areas

In business since 1984

Emergency services offered

Credit card accepted

"They were very responsive, came the same day to take a look so that they could install following morning. They came right at the beginning of the time window and finished as promised after couple of hours. HOWEVER, when it came to the coupon (which reads: "AQUA PLUMBING & HEATING CO, Water Heaters – $25 off any job for Angie's List members either 10% off up to $250.00 off bill***Please mention coupon when scheduling") they did not give me the 10% off (w`hich `would have been 132.50 USD) but $25 off on 1350 USD. Upon me asking they said the coupon is "awkwardly worded" and it's the $25 off - period. If I would have known that or the person I scheduled with and mentioned the coupon to would have informed me, I would chosen another provider with a better deal."
Recommended by95%of homeowners
Avatar for American Clear Water LLC
American Clear Water LLC
4.9(
51
)
Tankless Water Heater - Install

Serving Manchester, MD and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"Jeff is a true subject matter expert. With 30+ years in the industry he came quickly, was prepared, and handled the pressure switch without any delays. I cannot say enough good things about American Clear Water LLC. He was professional, kind, and courteous. He allowed me the opportunity to watch what he was doing and explained in layman's terms. He was fairly priced. I would recommend him to anyone asking for help. He is permanently saved in my phone and I will be calling this gentleman if any other issues arise. Thank you Jeff & American Clear Water LLC for everything."
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+3

Recommended by100%of homeowners
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