Sized For Your Home
Sized against how your household actually uses hot water, not against what is on the truck.
Heat Pump (Hybrid) Water Heaters In Frederick, MD
Heat pump and hybrid water heater installation in Frederick — high-efficiency units matched to the house and the space they'll live in, with the electrical and condensate details done properly.
4.9 from 2,979 Google reviews
30+ Years 30+ Years Serving Maryland
24/7 Service 24/7 Emergency Service
WSSC Licensed WSSC Licensed & Insured
Locally Owned Locally Owned and Operated
Hybrid Water Heater Service in Frederick
How a hybrid water heater works
A heat-pump water heater, also called a hybrid water heater, transfers heat from the surrounding air into a storage tank instead of creating all of its heat directly. Backup electric elements support recovery when demand is high.
The result can be substantially lower electricity use than a conventional electric tank when the equipment is installed in a suitable space and sized for the household.
Schedule Hybrid Water Heater Service
Tell us what you need — we’ll be in touch fast.
Explained Before We Start
Repair and replacement options explained before work begins.
Warrantied In Writing
One year on installations, 30 days on repairs, in writing, backed by the crew that did the work.
Tank leaking or out of hot water? We explain repair and replacement options.
Call (301) 804-6759Worth Knowing
The installation space matters
These systems need adequate air volume, drainage for condensate and enough clearance for service. Basements, utility rooms and some garages can work well; a tight conditioned closet may not.
Mallick evaluates the location, electrical capacity, household demand and installation requirements before recommending a model.
Installation plan
How a tank water heater call runs
Filters need periodic cleaning and the tank still benefits from routine flushing based on local water conditions. Mallick installs, replaces, maintains and diagnoses hybrid units across Maryland.
You call, we answer
You reach a real person, day or night. A leaking tank is an emergency dispatch, not a booking.
Diagnosed on site
A licensed technician diagnoses the unit on site — thermostat, element, valve, anode or tank.
Both options explained
We compare repair and replacement, with sizing based on how the house uses hot water.
Warrantied and permitted
One year on installations, 30 days on repairs, in writing, with the permit and inspection pulled as part of the job.
Worth Knowing
Water heaters on Frederick County water
What kills water heaters in Frederick County is mostly what's in the water. Homes on wells in the valley's limestone belt often run hard, and hard water scales tanks, buries elements and shortens the life of everything that heats water. On well systems we look at treatment alongside the heater, because replacing the tank without touching the water just restarts the clock.
The rest is ordinary discipline — matching the replacement to the house rather than to what's on the truck, doing the venting and relief work to code, and pulling the county or city permit when the job needs one.
Why Mallick
Maryland Has Trusted Mallick For 30+ Years
WSSC-licensed and insured crews, and warranties in writing: one year on installations, 30 days on repairs. The same standard whether it is a hybrid water heater call at 2pm or a burst line at 2am.
Google reviews
2,979
4.9 average across Gaithersburg, Frederick and Woodbine
Code & Permits
Water heater permits in Frederick County
A water heater replacement is one of the jobs most likely to need a permit, because one swap can touch gas, venting and relief piping at once. In Frederick that permit does not come from WSSC — Frederick County Permits and Inspections covers the county, and the City of Frederick permits work inside town.
We confirm what your specific job needs before work starts and handle the permit and inspection as part of it, the same as we do everywhere else we work.
Permit and inspection requirements per Frederick County Permits and Inspections. Requirements change — confirm current rules before work.
Ways To Save
Current Offers On This Job
$32
Off
Any Plumbing Service
$1 off for Each Year We’ve Been in Business!
Limit 1 offer per customer, cannot be combined with other offers, residential use only, must be presented at time of service. Not applicable to dispatch charge. Only applies for work performed. Valid Jan 1 – Dec 31, 2026.
Our maintenance plan
The Service Contract Of Choice
A 12-month annual maintenance contract for your home’s plumbing. The team is small enough to give you personalized attention and large enough to handle whatever comes up.
What stands behind every contract
12-month coverage term
24/7 emergency line
Licensed, trained technicians
Payment plans available
2-Year Extended Warranty for Furnished & Installed Equipment
6-Month Repair Warranty
Levels are matched to your home
The office confirms the current contract levels and details before you commit — call and the team will walk you through the options.
12-month term · Sign up by phone
Customer Field Notes
What Customers Remember After The Call
4.9
2,979 Google reviews across three Maryland locations
Field note 01 · Gaithersburg, MD
“Eric and Nick did a wonderful job.”
Very thorough and provided detailed explanation of what was needed to get our garbage disposal up and running.
Abbas and Koli were great technicians.
Quickly diagnosed the issue, thoroughly explained everything, and gave me a few options to move forward. I've had great experiences working with Mallick, highly recommend.
Chrissie Schenkel · Gaithersburg, MD Abbas came to our house for an emergency repair on a Saturday.
He was courteous and kind, he didn’t rush, and he worked hard to fix our problem and thoroughly investigate. It was hard to find a plumber who could do this on a Saturday at the last minute, and we appreciated Mallick’s and Abbas’s willingness.
Raj Nayak · Gaithersburg, MD Abbas Rahimiari was exceptionally professional, looking at our two plumbing problems, describing the underlying issues, fixing one immediately and explaining options on the other. Courteous, clear and efficient. And knowledgeable.
Gordon Schatz · Gaithersburg, MD I had a wonderful experience with Billy.
He was amazing and he was able to fix my issue with no concerns! 10/10! Thank you Billy.
Mia Barker · Gaithersburg, MD Excellent service and support from William Clem and Malick Plumbing.
Had a pinhole leak in a water service line. Found and fixed the problem … thanks so much.
Daryle Seckar · Gaithersburg, MD Roberto and Adelson were great to work with, efficient, and answered all questions. Top service and repair of water heater!
Jonathan Daly · Gaithersburg, MD
Fred and Luka were great!
They took the time to find the issue as well as helping me get opinions on future concerns as a new homeowner! Real experts and will work with them again!
Elijah Wadsworth · Woodbine, MD Abbas and Koli were fantastic.
They quickly identified and resolved our issue, and did a check to ensure there were no other sleeping issues. They were a pleasure to work with, respectful, and kind.
Kelley Barnaby · Gaithersburg, MD I received great service from both Ikem and CJ today.
They quickly identified the leak and fixed the issue. They also did a great job replacing some valves that needed replacing. They were very experienced and efficient. I have used Mallick several times and have always been pleased with their service.
Melissa Cavuto · Gaithersburg, MD Abbas and Erick were professional, knowledgeable and kind.
They inspected and guided me to make safe choices with my range that had a gas leak.
Andrea Huerta · Gaithersburg, MD Abbas and Bryan installed my new water heater.
There was a leak in my furnace and they fixed it also! The job was perfect. They had to install vents that were well done. They left no trace and the house was completely clean. The new water heater works like a charm. HIGHLY RECOMMEND this team and Mallick.
Janet · Gaithersburg, MD Kyle was so helpful in helping my husband and I fix the water pressure in our house. Kyle was very well versed and experienced, providing great options for future improvements to water filtering. I would highly recommend his services to anybody struggling with plumbing issues.
Azusena Herrera Tapia · Gaithersburg, MD
Every quote above comes directly from Mallick’s current Google Business Profile record.
Read more customer storiesCommon Questions
Hybrid Water Heater Questions, Answered
Still Stuck?
Talk To A Plumber
(301) 804-6759Someone picks up 24/7 — nights, weekends, and holidays included.
Is a heat-pump water heater the same as a hybrid water heater?
Yes. The names generally describe a storage water heater that uses a heat pump for efficient everyday heating and electric resistance elements for backup or high demand.
Where can a hybrid water heater be installed?
It needs adequate surrounding air, condensate drainage and service clearances. A site evaluation determines whether a basement, utility room, garage or other location is appropriate.
Do heat-pump water heaters need maintenance?
Yes. The air filter needs periodic cleaning, and tank flushing and inspection should follow the equipment instructions and local water conditions.
Does hard well water really shorten a water heater's life?
Yes. Scale insulates the water from the heat source, buries elements and makes the unit work harder for less hot water — and well water off the valley's limestone often runs hard. On a hard well we'll talk honestly about whether a softener is what saves the next heater.
Do I need a permit to replace a water heater in Frederick?
Often, because a replacement can involve gas, venting and relief piping. In the county the permit comes from Frederick County Permits and Inspections; inside the City of Frederick, from the city. We tell you before work starts and handle the paperwork when it's required.
How fast can you get to Frederick with no hot water?
Emergency calls are dispatched 24/7, and Frederick County is part of the regular service area, not an outer edge. Call and describe what's happening — no hot water with a leaking tank is treated as an emergency.
Where We Work
Hybrid Water Heater Service Across Maryland
Bethesda Rockville Silver Spring Germantown Potomac Olney Clarksburg Damascus Chevy Chase North Potomac Frederick Woodbine Columbia Ellicott City Aspen Hill Boyds Burtonsville Darnestown North Bethesda Poolesville Takoma Park Wheaton–Glenmont White Oak Green Valley Linganore Washington, DC College Park
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