Installation & replacement
A replacement sized to your home, not to a spec sheet
Replacing a water heater is mostly a sizing and code problem. We measure real demand, check what your gas, electric and venting can support, and install a system that fits the space you actually have.
Why homeowners call us
What you get
Demand-based sizing
We size on peak-hour usage and fixture flow, not bedroom count.
Code and permitting handled
Venting, expansion control, seismic and clearance requirements vary by jurisdiction — we work to local code.
Clean changeover
Old unit drained, disconnected and hauled away; the space is left dry and tidy.
What the visit covers
- Confirm fuel type, capacity and space constraints before ordering
- New connections, shutoff and expansion control as required
- Venting inspection and correction for gas systems
- Pan and condensate routing where applicable
- Startup, temperature verification and safety check
- Removal and disposal of the old unit
How it works
- 1
Assessment
We confirm what your home can support and what you need from hot water.
- 2
Options
Tank, tankless and hybrid presented with real trade-offs and installed pricing.
- 3
Schedule
When stock, job conditions and crew availability line up, same-day installation may be possible.
- 4
Install and walk-through
We show you the shutoffs, the settings and the maintenance schedule.
Shop like a warehouse
Compare water heaters the way you'd shop for anything else
Our interactive warehouse lets you browse systems, sizes and installed pricing on your own time — then hand off to our team when you're ready.
Open 24/7
Start shopping and submit an order at any hour. Installation timing is confirmed separately.
Browse real inventory
See the systems we actually stock, by fuel type and capacity.
Pick by size
Filter by household size and space so you're comparing realistic options.
Installed pricing
Pricing reflects installation, not just the box on the shelf.
Opens store.hotwaterexpress.com in a new tab. Your campaign and ZIP details carry over.
See how the Virtual Warehouse worksInstallation proof
See how the work is handled
These approved job stories show actual equipment and the care taken during service and replacement.
Water heater replacementUpper Marlboro, MD75-Gallon Gas Water Heater Replaced in Upper Marlboro
Hot Water Express replaced the 75-gallon gas water heater at a home in Upper Marlboro.
75-gallon gas tank water heater
Completed September 28, 2026
Water heater replacementUpper Marlboro, MD50-Gallon Gas Water Heater Replaces a Discontinued Model in Upper Marlboro
Hot Water Express replaced a discontinued 65-gallon gas heater with a 50-gallon model in Upper Marlboro.
50-gallon gas tank water heater
Water heater installationWashington, DC40-Gallon Power-Vent Water Heater Installed in Southwest DC
In southwest Washington, DC, Hot Water Express installed a 40-gallon power direct-vent gas water heater with an electrical outlet nearby.
40-gallon power direct-vent gas water heater
Water heater installationTemple Hills, MDGas Water Heater and Vent Upgrade in Temple Hills, MD
Hot Water Express installed a 40-gallon gas water heater and upgraded its exhaust vent at a Temple Hills home.
40-gallon gas tank water heater
Verified reviews
Hear from customers after installation
Verified customer reviews
Read what DMV neighbors say
Good to know
Frequently asked questions
Send three photos. Get a fast water-heater quote.
Show us the full heater, the model label and the vent or connections. Our team reviews the job and follows up with clear options.