Homeowners typically pay a combination of hardware costs and labor for installing a deadbolt. Main cost drivers include the type of deadbolt, door material, bore size, and whether existing hardware can be reused. This guide provides clear cost ranges in USD and practical factors to consider when budgeting.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Deadbolt hardware | $20 | $40 | $100 | Single-cylinder, Grade 2–3 |
| Labor (installation) | $80 | $150 | $250 | Includes drilling, bore adjustments |
| Door prep & bore adjustment | $0 | $30 | $100 | Existing doors may need minor work |
| Strike plate & hardware upgrades | $5 | $15 | $50 | Reinforcement for high security |
| Permits/inspections | $0 | $0 | $0 | Usually none for residential interior doors |
| Total project (door replacement possible) | $105 | $235 | $500 | Assumes standard door, single bore |
Overview Of Costs
Cost ranges reflect typical residential installations in the United States. When a deadbolt is replacing an existing lock on an unmodified door, the total tends to be toward the lower end. If a bore must be enlarged, or if the door is solid wood or metal with existing hardware that requires removal, prices trend higher. Assumptions: standard single-cylinder deadbolt, standard bore hole of 1-1/8 inches, professional labor, 1 door, no structural work.
Typical project ranges include both total project costs and per-unit costs. For a single door, expect total installation to fall in the broad bands shown below, with a per-unit note where applicable.
Cost Breakdown
Material, labor, and potential extras influence the final price. The table below uses standard columns for clarity and shows both totals and per-unit references where relevant.
| Category | Low | Average | High | Notes |
|---|---|---|---|---|
| Materials | $20 | $40 | $100 | Deadbolt grade, finish, and handle set |
| Labor | $80 | $150 | $250 | Time to remove old hardware and install new unit |
| Equipment & Tools | $0 | $5 | $20 | Drill bits, chisel, shims |
| Door Prep | $0 | $30 | $100 | Enlarging bore, strike plate reinforcement |
| Permits / Fees | $0 | $0 | $0 | Typically none for interior doors |
| Delivery / Disposal | $0 | $0 | $20 | Contingent on trash removal |
| Warranty | $0 | $0 | $0 | Most installers include a basic warranty with labor |
Assumptions: region, specs, labor hours.
What Drives Price
Two notable drivers are bore size and door type. The bore diameter for a standard deadbolt is typically 1-1/8 inch; upgrading to a larger bore or dual-bore configuration increases labor and hardware costs. Door material matters: hollow-core doors cost less to modify than solid wood or metal doors, and steel doors often require stronger strike plates and longer screws for security, adding $10–$50 in extras.
Other drivers include lock class (Grade 1 vs Grade 2/3), smart-lock integration, and whether the existing hardware can be reused. If a smart deadbolt is desired, expect higher material costs and potential electrical work, pushing totals upward by $100–$300 beyond a standard mechanical deadbolt.
Labor, Hours & Rates
Typical labor ranges from 1 to 3 hours depending on conditions. In most U.S. markets, professional installation rates fall between $80 and $150 per hour, with travel fees possible for distant jobs. For straightforward installs with an existing bore, a skilled technician often completes it in about 1–2 hours.
When on-site work requires additional tasks such as re-keying, changing strike plates, or aligning latches with a unforgiving frame, the time required increases, and so does the price. For multi-point or high-security systems, labor may reach the higher end of the range or require a certified locksmith, which can add $50–$100 per hour in some regions.
Regional Price Differences
Prices vary by region: urban, suburban, and rural areas show different trends. In the Northeast and West Coast, expect higher labor rates, often 10–20% above national averages. In the Southeast and Midwest, rates are typically closer to the national average with modest regional variation. Regional deltas can be +/- 15% for labor and +/- 10% for materials depending on local demand, availability, and installer competition.
Additional & Hidden Costs
Hidden costs can surprise first-time buyers. If the door requires repainting or refinishing after drilling, add $20–$60 for a touch-up. Re-keying existing hardware or changing cylinder cores may add $15–$40 per key. If the job involves a retrofit on a non-standard door or frame, or if the installer must come back to adjust alignment, expect 1–2 extra hours billed at the going rate.
Real-World Pricing Examples
Assumptions: standard single-cylinder deadbolt, bore 1-1/8 in, no smart-lock integration, 1 door, interior installation.
Basic: Hardware only, existing bore compatible, no refinishing. Materials $20–$40; Labor 1–2 hours @ $80–$120/hr; Total $100–$260.
Mid-Range: New deadbolt with reinforced strike plate, minor bore adjustment, re-keying. Materials $40–$60; Labor 1.5–2.5 hours @ $90–$140/hr; Total $200–$420.
Premium: High-security Grade 1 deadbolt, smart-capable or integrated lock, door refinishing if needed. Materials $70–$100; Labor 2–3 hours @ $110–$180/hr; Total $350–$700.
Assumptions: region, specs, labor hours.
Prices shown are typical estimates for U.S. residential installations. When budgeting, consider the door’s condition and the homeowner’s security goals. A straightforward mechanical deadbolt typically averages around $150–$250 for labor plus $20–$60 for hardware, with total project costs often landing in the $120–$350 range for a single door in a moderate market.