Gas hob installation typically costs $300-$1,500 when replacing an existing cooktop, while a new installation that needs a gas line can reach $3,000. The gas hob installation cost depends mainly on whether a compatible gas connection already exists, countertop fit, local labor rates, and permit or appliance requirements.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Replacement installation | $300 | $650 | $1,200 | Existing gas and electrical connections |
| New gas line and installation | $700 | $1,600 | $3,000 | Line length and access affect total |
| Gas cooktop appliance | $300 | $800 | $2,000 | Price varies by size and features |
| Installer labor | $75 | $125 | $200 | Hourly rate; minimum charges may apply |
What a standard gas hob replacement costs
For a like-for-like replacement, homeowners usually pay $300-$1,200 for installation, including removal of the old unit, connection to an existing gas shutoff, basic fitting, and a leak check. A straightforward job often lands near $650 before the new cooktop’s purchase price. A new 30-inch gas cooktop commonly adds $300-$1,200; premium models can cost more.
A replacement using an accessible, compatible gas connection is the least expensive scenario. A larger cutout, damaged valve, inaccessible shutoff, or electrical work can move the quote above the usual range. Assumptions: standard 30-inch cooktop, typical U.S. labor rates, sound countertop, and no major code upgrades.
How gas line, labor, and removal appear in quotes
Quotes may separate the appliance hookup from plumbing, countertop work, and disposal. Ask whether the price includes testing for leaks, reconnecting the electrical igniter, haul-away, and any required permit. These line items help explain why two estimates for the same appliance can differ.
| Quote item | Typical price | What changes it | Common unit |
|---|---|---|---|
| Cooktop hookup and testing | $150-$400 | Access and connection condition | Per appliance |
| Gas line extension | $250-$1,000 | Route, material, and wall access | $20-$50 per linear ft |
| Removal and disposal | $50-$200 | Haul-away and local fees | Per appliance |
| Countertop adjustment | $100-$500 | Cutout material and precision | Per opening |
| Labor | $75-$200 per hour | Trade and local minimum | Hourly |
Confirm that connection testing and disposal are included rather than assuming they are part of the installation fee. A one-to-three-hour replacement at $75-$200 per hour can have a service minimum, so the billed amount may exceed the time spent on site.
When gas-line length and cooktop size raise the price
A new gas line is often the biggest cost driver. A short, accessible run of up to 10 feet may add about $250-$600; a 20- to 30-foot route through finished walls or floors can add $700-$1,500 or more. Longer routes, difficult drilling, or a capacity upgrade require a site-specific quote.
Cooktop width and cutout dimensions also matter. Most 30-inch units fit common openings, but a 36-inch model or a cutout that differs by more than about 1 inch may require countertop modification. Stone counters generally cost more to alter than laminate, and some openings cannot be safely enlarged without specialist work.
Verify both the gas supply capacity and cutout dimensions before ordering the cooktop. An undersized line, missing shutoff valve, or incompatible connector can require additional plumbing rather than a simple hookup.
How long gas cooktop installation takes
A basic replacement generally takes 1-3 hours, including removal, hookup, leveling, and testing. Adding a nearby gas branch can take 3-6 hours; routing a line through finished spaces may require a longer visit or a separate finishing trade. Countertop changes can add scheduling time even when the actual cutting takes less than a day.
Labor time is shortest when the appliance, connections, and opening are ready before the installer arrives. Some contractors charge a $75-$200 service minimum or a $50-$150 diagnostic or trip fee, which may apply if the installation cannot proceed because the appliance or site is not ready.
New gas line installation versus replacing an existing hob
Replacing a working gas cooktop usually avoids the expense of extending a line and is often the better budget choice when the existing connection is safe and correctly located. A new gas conversion from electric cooking can cost $700-$3,000 for line work and installation, not including a possible electrical or cabinet change.
Compare the full conversion quote with an electric or induction replacement before committing to new gas piping. The alternative may avoid gas-line construction, though electrical capacity, appliance price, and any circuit upgrades also affect total cost.
How regional labor rates change installation estimates
Prices tend to be higher in major metro areas and regions with elevated contractor wages. Compared with a typical national estimate, urban markets can run about 10%-25% higher, while rural areas may be 5%-15% lower when travel and service minimums are modest. Local permit rules and availability of licensed gas-fitters can outweigh these broad differences.
Use regional ranges as a comparison, not as a substitute for a site-specific quote. Request an itemized estimate from at least two qualified installers and compare the same scope, including gas-line work, removal, testing, and countertop changes.
Permits and safety checks for gas hob hookups
Some jurisdictions require a permit or inspection for a new gas line, appliance relocation, or gas conversion; a basic replacement may not require one. Permit fees commonly run $50-$300, but local rules and inspection charges vary. Installers may also charge for a pressure test or additional code work if the existing piping or shutoff does not meet current requirements.
Ask who obtains the permit and whether inspection fees are included in the written estimate. A licensed professional should verify the connection, shutoff access, ventilation requirements, and leak-free operation under applicable local code.
Ways to lower a gas hob installation quote
Keep the cooktop in the same location when possible, choose a replacement that matches the existing cutout, and confirm the gas connection type before purchase. Handle simple room preparation, such as clearing cabinets and moving stored items, but do not disconnect gas piping unless qualified. Bundling removal with installation may reduce a separate trip or haul-away charge.
Avoid paying for a new line or countertop work until the installer confirms it is necessary. Compare itemized bids, ask about standard service minimums, and schedule ahead rather than requesting urgent work. The lowest quote is not comparable if it excludes leak testing, permits, or disposal.