120-lbs. Garage Door Extension Spring Replacement Kit - Durable 25in

In this review of the 120-lbs. Garage Door Extension Spring Replacement Kit the bottom line is simple: this kit is for homeowners and DIYers who need a reliable, maintenance-free pair of extension springs for a 7 ft high door. The reviewer found the kit provides durable performance and straightforward installation for standard 1-car and 2-car residential doors, with the biggest reason to buy being the professional heat-treated spring steel and electrophoretic coating that promise long cycle life and strong corrosion resistance.

Key Features

• Capacity: Rated as a 1 pair garage door spring set at 120 lbs, this provides balanced lift for many 7 ft high single and double doors.
• Size and fit: The springs are 25 in long with a fully stretched length of 71 in, which fits common door sizes including 8' x 7', 9' x 7' and 16' x 7'.
• Durability: Made from professional ASTM-A228 spring steel and heat-treated, the springs are built to withstand a minimum of 16,000 cycles for long service life.
• Corrosion resistance: Electrophoretic black coating gives outstanding protection, passing 300 hours of salt spray testing to resist rust in humid environments.
• Complete kit: Each package includes one pair of extension springs, a pair of non-slip gloves and clear installation instructions to keep hands clean and aid safe DIY replacement.
• Double loop ends: Double looped ends increase sturdiness where the spring connects to the eye-bolt and pulley, reducing the chance of end deformation under load.

Who It's For

This kit is aimed at homeowners, handypersons and small contractors replacing worn extension springs on standard residential garage doors up to 7 ft high. It suits those who want a ready-to-install pair with gloves and instructions included and who value corrosion resistance for coastal or damp locations.

Those who should look elsewhere include owners of nonstandard door heights or doors requiring torsion springs rather than extension springs, and buyers who need custom-length or different-rated springs than the 120-lbs. pair provided here.

Pros & Cons

Pros

• Well-built, heat-treated spring steel delivers solid spring quality and longevity compared with some replacements.
• Electrophoretic coating and 300-hour salt spray resistance reduce corrosion concerns in humid environments.
• Includes gloves and clear instructions, making ease of installation better for DIYers.
• Double loop ends add robustness at attachment points for more secure operation.

Cons

• Intended for 7 ft high doors and specific load ratings, so it is not universal for all garage door setups.

Specifications

Brand	Blesseras
Spring capacity	120 lbs (pair)
Length	25 in (stretched 71 in)
Ends	Double loop ends
Coating	Electrophoretic black coating
Material	ASTM-A228 heat-treated spring steel
Package contents	Pair of springs, non-slip gloves, installation instruction

Our Verdict

For standard 7 ft residential garage doors that require a 120-lbs. extension spring pair, this kit offers strong value thanks to professional spring steel, long cycle life and superior corrosion protection. DIYers and homeowners who want a complete, durable replacement with easy-to-follow instructions will find it a dependable choice.

Frequently Asked Questions

Will this kit fit my 7 ft high garage door?
Yes, the 25 in springs with 71 in stretched length are specified for 7 ft high residential doors including typical 8' x 7', 9' x 7' and 16' x 7' dimensions.

Should I replace both springs at once?
Yes, the manufacturer and reviewers recommend replacing springs in pairs to ensure balanced operation and avoid uneven wear on the door and opener.

Does the kit include safety gear?
The package includes one pair of non-slip gloves and installation instructions to help keep hands clean and guide a safe replacement.