How much a whole-house generator costs in 2026, and whether your quote is fair
On standby generator permits, the median declared value runs from $11,610 in Buffalo and Pittsburgh to $15,800 in Seattle. That is from 314 permits in Buffalo, Pittsburgh, Cleveland and Seattle, adjusted to today's dollars. Enter your ZIP and quote to compare with the middle half of permit values in your region.
Written by Matt Kovalik, licensed Minnesota journeyworker electrician. License AJ703617 (verify). Updated October 2026. Based on 314 permits in Buffalo, Pittsburgh, Cleveland and Seattle.
Whole-house generator checker
Fair.
Your quote sits in the middle half of what these permits show.
What 103 permits in Buffalo show.
Middle half: $9,270 to $12,010.
Across regions, the median permit value runs from $11,610 in Buffalo and Pittsburgh to $15,800 in Seattle.
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- Northeast$11,610Buffalo and Pittsburgh
- Midwest$11,940Cleveland
- Southno data
- West$15,800Seattle
What this job includes
A standby generator job grows with its complexity, not because the generator is mysterious. The main pieces are the generator's size, the automatic transfer switch, the wire run linking the generator, the transfer switch and the panel, any panel or subpanel work, the gas or propane connection, the pad and its placement, and the permits and inspections.
Two things are worth checking first: the distance between the generator and the electrical equipment, and whether the current panel will accept the transfer equipment without rework. The gas side surprises people just as often, because a standby generator adds a large fuel demand and the existing gas meter or line can turn out to be too small once the load is worked out.
From the electrician: what I want you to know about standby generators
The generator itself is rarely what makes these installs complicated. The real work is the transfer equipment, the fuel supply, and getting the electrical system to behave properly when the power is out. The gas or propane side is up to the installer; my focus is the electrical side: the panel, the transfer equipment and load shedding. Homeowners can lose weeks weighing one generator brand against another, when the bigger question is whether their panel and their gas or propane supply can support what they want.
Load management is the cost driver nobody brings up. Everyone wants the whole house covered until you start counting the heat strips, the EV charger, the dryer, the hot tub, the air conditioner and the electric range. That is the point where a simple install becomes a bigger project with load-shedding modules, a service upgrade, or work on the gas or propane supply. Many older houses were never designed around today's electric loads.
Generator quotes also turn up a lot of bad panels. Federal Pacific and Zinsco panels show up all the time in older houses, and I will not connect an automatic transfer switch to either. If the existing service equipment shows heat damage, corrosion, overloaded breakers or questionable homemade changes, that has to be fixed before backup power goes in.
The worst advice online is about backfeeding with a portable generator. I still find houses where someone built a homemade cord years ago and powers the panel through the dryer outlet in an outage. It may seem to work, but it is one of the quickest ways to endanger utility line workers and damage equipment in the house. Interlock kits and proper transfer equipment exist for exactly this reason.
Climate shapes how I plan an install too. Where snow piles up, a generator that gets buried in drifts, sits too close to a deck, or is tucked into the landscaping for looks turns into a service headache later. I would rather see a unit that is a bit more visible with proper airflow and room to service it than a hidden one nobody can maintain.
On a quote, I look for the transfer switch model, the fuel source, a mention of load calculations, and permit costs listed separately. A line like "install generator hookup" is not nearly detailed enough for a job this size.
For my own house, I would buy a little more generator than I need today and pair it with a good automatic transfer switch from day one. Households tend to add electrical loads over time, not shed them, and people who undersize the generator usually end up replacing it sooner than they planned.
Matt Kovalik, licensed Minnesota journeyworker electrician.
Questions to ask before you sign
Matt's list for this job.
- Which appliances will run together during an outage, and which will be shed or left off?Whole-house is a promise about usable power. Starting the larger appliances is part of that promise.
- What transfer equipment is included, and how will it work with my existing service?The transfer arrangement decides which circuits receive backup power and how they connect to the existing service.
- Have you verified the fuel supply, piping, and meter capacity with the other gas appliances running?Fuel pressure can fall short when the generator and other gas appliances demand it at the same time.
- Where will the unit sit, and how have you checked exhaust, openings, clearances, drainage, and service access?Exhaust, nearby openings, and access for repairs can rule out the spot that looks most convenient.
- Does the price include the base, trenching, electrical and gas work, permits, and yard restoration?Excavation, fuel piping, and restoring the yard can sit outside a quote centered on the generator itself.
- Will you simulate a utility outage and test transfer, loaded operation, and return to utility power?An engine running in the yard tells you little about whether the house transfers, carries load, and returns to utility power.
- Who will maintain the generator, what service does it need, and how will a failed exercise or weak battery be brought to my attention?Between outages, the exercise cycle and battery need attention so the unit is ready when called on.
What moves the price
- $11,610
Lowest regional median
The lowest median permit value of any region with enough generator permits.
- $15,800
Highest regional median
The highest median permit value of any region. Unit size, gas run and transfer switch type can move any single quote.
- $13,830
Top of the middle half in Buffalo and Pittsburgh
A quarter of permits there sit above this. A quote above it is worth checking against the scope line by line.
Fair range by metro
| Metro | Region | Middle half of permit values | Permits | Updated |
|---|---|---|---|---|
| Buffalo | Northeast | $9,270 to $12,010 | 103 | October 2026 |
| Pittsburgh | Northeast | $11,880 to $15,810 | 66 | October 2026 |
| Cleveland | Midwest | $10,910 to $13,080 | 105 | October 2026 |
| Baltimore | South | $5,340 to $21,000 too few for a zone | 11 | October 2026 |
| Seattle | West | $10,340 to $20,230 | 40 | October 2026 |
Declared permit values, issued October 2023 to October 2026, adjusted to 2026 dollars with CPI-U. Cities join a zone only if they pass the calibration check.
Questions people ask
How much does a whole-house generator cost?
On standby generator permits, the median declared value runs from $11,610 in Buffalo and Pittsburgh to $15,800 in Seattle. Generator size, the transfer switch and the gas line can all move a quote. We exclude very large units and permits that bundle a service upgrade. Enter your ZIP for the middle half of permit values near you.
Does the range include the generator itself?
Not always. Some permits declare the full installed job, with the unit, transfer switch and pad, and some list only part of it. We removed one clear electrical-only pattern, in Seattle, from the range. Others may remain that we cannot see. Ask your contractor whether the quote includes the unit, gas work, pad and transfer switch, so you compare whole jobs.
What size generator do I need?
It depends on what you want running in an outage. Whole-house coverage with central air needs a bigger unit than lights, furnace, fridge and sump pump. Ask the contractor to list the loads they sized for. A bigger unit than you need costs more upfront and burns more fuel, so the list of loads is worth reading line by line.
Does a generator need a gas permit too?
Usually. A natural gas or propane generator needs a gas line, and the gas meter may need to be larger. Many cities treat that as a separate permit or inspection. Ask whether the gas work, meter change and both permits are in your quote, and who coordinates with the gas utility.
Sources
- City of Cleveland building permits
- City of Pittsburgh PLI permits (WPRDC)
- City of Buffalo permits (Open Data Buffalo)
- City of Seattle permits (data.seattle.gov)
- City of Baltimore housing and building permits (Open Baltimore)
- U.S. Bureau of Labor Statistics (CPI and PPI)
- How we build the numbers
- Data sources and licenses