Diana Reyes

Master Plumber · Certified Home Inspector (InterNACHI)

Diana worked 15 years as a licensed plumber before moving into home inspection and consumer cost research. She has priced water heater work in hundreds of homes across three states.

Guides by Diana Reyes

A technician running a rotary brush and vacuum hose into a supply trunk to clean air ducts

HVAC

Cost to Clean Air Ducts

What it costs to clean air ducts, what a proper cleaning includes, when it is actually worth doing, and how to avoid t...

A high-efficiency condensing unit with white PVC venting in a basement, the finished work to install a gas furnace

HVAC

Cost to Install a Gas Furnace

What it costs to install a gas furnace, by efficiency class, plus sizing, the venting and gas work, and where you can...

A ducted air-source outdoor unit and a matched air handler, the equipment a contractor sets to install a heat pump

HVAC

Cost to Install a Heat Pump

What it costs to install a heat pump, ducted versus ductless, cold-climate models, the electrical work involved, and t...

A new outdoor condenser on a level pad beside the house, the visible half of the job when you replace a central AC unit

HVAC

Cost to Replace a Central AC Unit

What it costs to replace a central AC unit, by system size and efficiency, plus sizing, the parts that do not always g...

An electrician securing a fan-rated brace box between two joists to install a ceiling fan

Electrical

Cost to Install a Ceiling Fan

What it costs to install a ceiling fan, on an existing box versus a new location, the parts that make up the bill, and...

An electrician pulling new NM cable through open stud bays on a project to rewire a house

Electrical

Cost to Rewire a House

What it costs to rewire a house, the price per square foot, what a full rewire includes, and when a partial rewire is...

A wall-mounted Level 2 charging station on a new 240-volt circuit, the setup a licensed electrician builds to install a home EV charger

Electrical

Cost to Install a Home EV Charger

What it costs to install a home EV charger, Level 1 versus Level 2, why the wire run drives the price, and when you ne...

Electrical

Cost to Replace an Electrical Panel

What it costs to replace an electrical panel, by amperage, plus the difference between a swap and a service upgrade an...

A garden hose draining sediment from a drain valve, the DIY way to flush a water heater

Plumbing

Cost to Flush a Water Heater

What it costs to flush a water heater, how often to do it by water hardness, the DIY steps, and when to call a plumber...

Plumbing

Water Heater Repair Cost

The water heater repair cost by part, the signs that point to a repair instead of a replacement, and how to avoid the...

A wall-mounted gas condensing unit and fresh stainless venting, the hardware a plumber fits to install a tankless water heater

Plumbing

Cost to Install a Tankless Water Heater

What it costs to install a tankless water heater, gas versus electric, why the gas line and venting drive the price, a...

A plumber connecting the water lines on a newly installed 50-gallon tank to replace a water heater

Plumbing

Cost to Replace a Water Heater

What it costs to replace a water heater, priced by tank size, fuel type, and location, plus where the money goes and h...