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TRUSTED BY SANDY SPRING, MD HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon75
    Verified water heater services reviews

Find Water heater pros in Sandy Spring

Avatar for Ehrhardt Brothers Quality Plumbing, Inc
Ehrhardt Brothers Quality Plumbing, Inc
4.8(
432
)

Serving Sandy Spring, MD and surrounding areas

Approved

In business since 1992

Warranties offered

Small jobs welcome

"Saved by Ehrhardt Brothers Quality Plumbing (a.k.a ColumbiaPlumber)! (West of Baltimore) Our gas water-heater failed! It’s 30° outside! (Mar 2026). It was leaking, so we shut off the gas, the pilot, and the water inlet, to lessen damage if it burst. Ehrhardt offered a price based on our descriptions and photos, of course with caveats for anything unexpected. A water-heater costs a pretty-penny, but less than we expected. A fair price. They came the next morning, and had the water heater replaced in 90min. Impressive. But the manufacturer sent a unit with a bad pilot! Ehrhardt returned immediately and in 30min, they figured it out. They had a replacement part over-nighted. The next morning, in 30min, done. Hot water. AAAAAHHH :-) The problem was the manufacturer’s fault, and Ehrhardt handled it flawlessly: Excellent communication by Ehrhardt, priority attention to our problem, no excuses, just fast resolution. Great service staff. Perfect!"
Water Heater
Water Heater
Water Heater
Water Heater
Additional Photos

+40

Recommended by96%of homeowners
Avatar for Fred and Son Plumbing
Fred and Son Plumbing
4.8(
67
)

Serving Sandy Spring, MD and surrounding areas

Approved

In business since 1990

Free estimates

Customers say: True professional

"We have depended on Fred and Son for expert plumbing help for years now. Today it was Joe who did the installation, and we couldn't be happier with his work. Equally important, we appreciate how friendly, considerate, and professional he was throughout his visit. We will continue to have Fred and Joe on speed dial!"
Recommended by100%of homeowners
Avatar for Pipeworks Plumbing, Heating, and Air
Pipeworks Plumbing, Heating, and Air
4.8(
622
)

Serving Sandy Spring, MD and surrounding areas

Approved

In business since 2016

Emergency services offered

Small jobs welcome

"Johnny was very professional in performance of the hot water heater installation and helpful in answering all of my questions. Highly recommend the company. Cheers"
Lennox 14ACX (Photo 1)
Lennox XC16
Trane Heat Pump 5
Its the details that count
Lennox 14ACX (Photo 2)

+66

Response time2 hrs
6 neighbors recently requested a quote
Recommended by97%of homeowners
Joseph plumbing & drain
4.9(
153
)

Serving Sandy Spring, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"Kap was extremely responsive on the phone to give a quotation with a very compettive price. He arrived on time, and worked effectively to finish and do everything in a professional way. The work quality was excellent and very clean. We are realy happy with the water heater he installed."
Response time6 hrs
Response rate100%
4 neighbors recently requested a quote
Avatar for Supreme Service Today
Supreme Service Today
4.4(
476
)

Serving Sandy Spring, MD and surrounding areas

Approved

In business since 2004

Free estimates

Credit card accepted

"They were up front with what is wrong. Provided explanation of the quote. Asked permission to get access to places. They explain the reasoning for the cost and the risks if ignored. Pricing was fair. Went above an beyond to solve the water heater issue we had. Even calling in an electrician to help with a fix. They were on-time to early on their scheduled appointments. Excellent customer service."
Response time9 hrs
Response rate100%
50 neighbors recently requested a quote
Markool Heating & Cooling, LLC
4.7(
18
)

Serving Sandy Spring, MD and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"Woke up this morning to my hvac leaking and contacted Markool. I have never used them before and was in a pinch. They fit me right in this morning and were out at my house within 2 hours. The tech stepped in the door and placed covers for his shoes so he did not track in any dirt which was impressive! The tech was very professional and super friendly. Problem was diagnosed and FIXED within an hour. The price was extremely reasonable to the point I was shocked in a good way (expecting a higher price). Anyways, I will most certainly be a returning customer. Thank you Markool Heating Cooling Plumbing."
Response time1 day
11 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Atlantic Blue Water Services
Atlantic Blue Water Services
4.8(
121
)

Serving Sandy Spring, MD and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"On time, in fact earlier than expected. Courteous technicians. Provided options for repair or replacement and was forthcoming about what he saw. Recommended a highly reviewed water heater. All around excellent."
The Fleet
The Building on Rt. 140
Main water line replacement!
Well Pump Replacement
Training Session!

+22

Response time10 hrs
Response rate88%
117 neighbors recently requested a quote
Avatar for DAY & NIGHT PLUMBER LLC
DAY & NIGHT PLUMBER LLC
4.8(
90
)

Serving Sandy Spring, MD and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"I emailed Day and Night Plumber after my old water heater started shooting water out the front panel and within 10 minutes I got a phone call from them with an appointment for an estimate with Marin. The quote was very reasonable and after I supplied the Hybrid Water Heater, Marin was able to come install it on Sunday. He was extremely knowledgeable, efficient, and hard working. He finished everything, cleaned up the area, hauled away my old water heater, and showed me how everything worked. He even gave me a military discount and 12 month warranty on labor. If you need a plumber for anything, give Day and Night Plumber a call, they will give you top notch service for a reasonable price."
Additional Photos
Additional Photos
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Additional Photos
Additional Photos

+1

Response time11 hrs
3 neighbors recently requested a quote
Recommended by98%of homeowners
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Water Heaters questions, answered by experts

The right way to vent a gas water heater is to have a pipe directly upward or slopes upward out of the house. Because hot air naturally rises, this type of venting will efficiently ensure that all gas moves out of the house. Your system may rely on fans or blowers as well.

No. Expansion tanks must be installed on the supply side (where heated water flows out) of the boiler. There’s also a list of other requirements for most boilers, including being above the pressure relief valves, being on the inner side of any circulator, and more. Your installation manual should have more information on expansion tank installation requirements and what sort of tank the system is made for.

Venting a gas water heater out of the roof is preferable in most cases. Heated exhaust gases naturally rise, so a vertical vent pipe is efficient. If you’re trying to vent through a pipe exiting a wall, the angle of the pipe may be more horizontal than vertical, making the venting system less effective. If you go through a wall, you may need to add a fan to ensure a successful expulsion of the gases outdoors.

A thermocouple is a pretty simple device. It simply tells the control valve if heat is present. Most water heaters can use a universal thermocouple, provided it's the correct length. Getting one that's long enough for your appliance is crucial for success. However, some water heater models require model-specific thermocouples, which is why it's essential to take your existing one to the store to find the right match.

It takes between one and three hours to replace a hot water heater element, depending on whether you hire a pro or do the work yourself. For example, a professional plumber with all the necessary tools and experience can often finish the job in one to two hours, whereas DIY will take two to three hours because it'll involve more preparation and troubleshooting.

The Sandy Spring, MD homeowners’ guide to water heater services

From average costs to expert advice, get all the answers you need to get your job done.