Homeowners typically pay for Therma-Tru Smooth-Star doors based on door size, model type, glazing, hardware, and installation complexity. This Therma-Tru Smooth-Star price guide breaks down the cost and price ranges to help plan budgets, including per-unit and total costs for common scenarios. The cost drivers include size, finish, glazing options, regional labor, and delivery.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Door slab or prehung unit (standard 6’8″, exterior) | $900 | $1,400 | $2,200 | Based on Smooth-Star fiberglass core, basic finish |
| Interior Smooth-Star doors (single) | $450 | $700 | $1,000 | Standard hollow or solid core varies by line |
| Glass upgrade (midweight insulated) | $150 | $350 | $650 | Low-E or obscure glazing adds cost |
| Hardware package | $100 | $250 | $500 | Handleset, hinges, screws, strike plate |
| Delivery | $50 | $150 | $300 | Regional charges vary |
| Installation labor | $400 | $1,000 | $2,000 | Includes prep, framing, shimming, sealant |
| Permits and inspections | $0 | $150 | $500 | Depends on jurisdiction |
| Warranty and service | $0 | $100 | $250 | Manufacturer warranty included |
Typical Therma-Tru Smooth-Star Door Sizes and Core Options
Prices vary by size and core type. The most common setup is a prehung exterior Smooth-Star door in a 6’8″ height with a fiberglass interior core and a decorative panel. A standard 36″ wide unit without specialty glazing usually lands in the $1,000–$1,600 range, while a 42″ or 48″ wide door with premium glazing can reach $1,700–$2,400. For interior doors, costs are lower, typically $450–$1,000 per unit depending on panel count and finish. Assumptions: Midwest labor rates, standard fiberglass core, standard finish, normal access.
Major Price Components in a Smooth-Star Door Quote
| Cost Component | Typical Range | Per-Unit Basis | Notes |
|---|---|---|---|
| Door unit | $900–$2,200 | Fixed | Exterior prehung with standard panel |
| Glazing and glass options | $150–$650 | $ per panel | Low-E, frosted, or decorative glass increases value |
| Hardware package | $100–$500 | $ per set | Quality handleset and hinges impact price |
| Delivery | $50–$300 | $ per unit | Distance from supplier matters |
| Installation labor | $400–$2,000 | $ per hour or job | Includes removal of old door, trim work |
| Permits and inspections | $0–$500 | $ flat or per permit | varies by jurisdiction |
| Warranty and service | $0–$250 | $ flat | Base warranty included; extended options |
Variables That Most Strongly Shape Smooth-Star Quotes
Size and system type drive the lion’s share of cost. Exterior units at 42″ or 48″ widths increase material and labor needs. A 6’8″ x 36″ unit with basic glass costs less than a 6’8″ x 42″ or 48″ unit with premium glazing. Regional labor rates can swing total price by 15–30%, and the inclusion of a full hardware package or upgraded locks can add $100–$350. For high-traffic homes, upgrade glazing or triple-pane options can add another $400–$900.
Exterior Versus Interior Smooth-Star Price Differences
Exterior models typically cost more due to weather sealing and reinforcement. Exterior prehung Smooth-Star doors commonly range from $1,100 to $2,400 before installation, while interior Smooth-Star doors usually stay under $1,000. If a builder requires nonstandard jamb dimensions, expect added carpentry and mid-range hardware adjustments that raise costs by $150–$500 per unit. Regional insulation requirements may affect glazing choices and end costs.
Glass Options and Their Impact on Price
Choosing glass with low-E or decorative patterns adds cost. Standard insulated glass with clear panels often costs $150–$350 per unit; premium glass or multiple panels can push to $500–$650. Note that larger door widths frequently necessitate heavier glass and stronger hardware, increasing both material and installation time by 0.5–1.5 hours per unit.
Hardware Packages and How They Change the Total
Hardware quality influences long-term performance and price. A basic lever handle can add $100–$160, while a premium handleset with deadbolt and enhanced hinges may add $200–$500. A matched interior trim set and weatherstripping are included in some packages but can be added separately for $40–$100. Labor to fit premium hardware adds about 0.5–1.5 hours per unit.
Delivery and Scheduling Fees for Smooth-Star Doors
Delivery and scheduling costs vary by distance and contractor policies. Local suppliers often charge $50–$150 for delivery; regional hauls or expedited delivery can reach $250–$300. Scheduling windows affect labor efficiency; delays may add 0.5–1.5 hours of crew time, translating to $40–$120 extra per door depending on local rates.
Ways to Cut the Price on Smooth-Star Projects
Careful scope control and timing can trim costs without sacrificing quality. Select standard sizes and glazing, avoid multiple specialty finishes, and bundle delivery with installation when possible. If feasible, replace one large door vs two smaller doors to save hardware and trim costs. Compare quotes across regions, and consider a repairable finish rather than full replacement if hinges and seals are in good condition. Planning around off-peak seasons can reduce labor rates by up to 15% in some markets.