Comparison · Free
DIY or Hire a Pro
Weigh cost, time, tools, permits, risk and consequences before you take on a job yourself.
The verdict
Hire a pro
- True cost of doing it yourselfMaterials, tools and 7.2 hours of your time
- $1,639
- Contractor's priceIncludes warranty, insurance and the callback if it fails
- $1,800
- You would save9.0% of the contractor's price
- $162
- Realistic hoursYour 6.0-hour estimate adjusted for experience
- 7.2 hrs
| Line | Do it yourself | Hire a pro |
|---|---|---|
| Materials and parts | $1,139 | Included in the price |
| Tools to buy or rent | $140 | None — they own them |
| Your time | $180 (7.2 hrs) | None |
| Permit and inspection | $180 | Usually pulled by the contractor |
| Labor warranty | None | Typically 1 year, often longer |
| If it goes wrong | Yours to fix, and yours to pay for | Theirs to fix, under their insurance |
| Total | $1,639 | $1,800 |
These factors settle it regardless of the savings
- Permit and inspection required. Unpermitted work can void a homeowner's policy claim, must be disclosed at sale in most states, and frequently has to be opened back up for inspection.
- Gas piping or combustion venting. A leak or a bad vent connection is a carbon monoxide and explosion risk that does not announce itself. Most jurisdictions restrict this work to a licensed contractor.
- Failure causes compounding damage. If this job is done wrong, the bill is not the job — it is the water, rot or mold that follows before anyone notices.
The savings are real — so is the exposure
What this assumes
- Values your time at the rate you enter; the default is the national median wage.
- Includes tool acquisition or rental in the DIY cost.
- Weights permit requirements and life-safety risk heavily regardless of savings.
Important
Some work is not legally yours to do. Gas piping, service equipment and structural alterations require a licensed contractor and a permit in most jurisdictions, and unpermitted work can void insurance and block a future sale.
Understanding the result
The three questions that settle it
Does it require a permit? Can it hurt someone if it fails? Does failure cause damage that compounds? A yes to any of those moves the decision sharply toward hiring out, regardless of the money saved.
Count the tool cost honestly
A job that saves $400 in labor but needs $350 of tools you will use once is not a saving. Rental changes that math substantially, which is why the rent-versus-buy question is worth running separately.
Unpermitted work follows you
Work done without a required permit can void a homeowner's policy claim, has to be disclosed at sale in most states, and frequently must be opened up and re-inspected. The savings are real; so is the liability.
You may also need
The next decision usually follows directly from this one.
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- DiagnosticContractor Quote AnalyzerBreak down a contractor's quote and see whether the price and the terms are reasonable.
- ComparisonTool Rent or Buy CalculatorCompare renting against buying a tool across the number of times you will actually use it.
- PlannerHome Maintenance PlannerGenerate a seasonal maintenance schedule tailored to your home's systems, age and climate.
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