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*The Angi rating for Locksmith Service companies in Greenfield, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Locksmith Service needs.

*The HomeAdvisor rating for Locksmith Service companies in Greenfield, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Locksmith Service needs.

Last update on January 13, 2026

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WISHEKS

2.00(
1
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WISHEKS

2.00(
1
)
Customers say: Terrific value

At WISHEKS we want you to be 100% satisfied with your purchase. Our sincere goal is to provide an enjoyable shopping experience that encourages you to shop with us for years to come. On the rare occasion you receive a product that you just don't like or that doesn't match your décor, our experienced Customer Service staff is just a phone call away and will guide you through our easy return policy. At WISHEKS we want you to get exactly what you want and with our world-class product selection you can be sure you'll find the product that is right for you.

At WISHEKS we want you to be 100% satisfied with your purchase. Our sincere goal is to provide an enjoyable shopping experience that encourages you to shop with us for years to come. On the rare occasion you receive a product that you just don't like or that doesn't match your décor, our experienced Customer Service staff is just a phone call away and will guide you through our easy return policy. At WISHEKS we want you to get exactly what you want and with our world-class product selection you can be sure you'll find the product that is right for you.

Nashua NH Locksmith

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Nashua NH Locksmith

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44 years of experience

Nashua NH Locksmith is the smart choice in Nashua New Hampshire. With a wide selection of locksmith services all over Nashua, it's no wonder Nashua chooses Nashua NH Locksmith again and again.

Nashua NH Locksmith is the smart choice in Nashua New Hampshire. With a wide selection of locksmith services all over Nashua, it's no wonder Nashua chooses Nashua NH Locksmith again and again.

Superior Lock & Key

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Superior Lock & Key

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Emergency services offered

Superior Lock & Key, based in Windham, Maine and Portland, Maine, has been providing lock installation and lock repair service for more than 20 years. Our services are designed for residential and commercial customers and includes 24-hour emergency service.

Superior Lock & Key, based in Windham, Maine and Portland, Maine, has been providing lock installation and lock repair service for more than 20 years. Our services are designed for residential and commercial customers and includes 24-hour emergency service.

Locksmiths questions, answered by experts

It can affect security, especially if you don’t finish it properly. A Dutch door has more moving parts that can be compromised, so you’ll want to use solid hardware and make sure everything lines up and locks cleanly. If the latch is flimsy or the two halves don’t sit tight, it’s going to be easier to force open.

The good news is that, yes, you can change locks yourself. Many people find it’s an easy DIY project that requires few tools and not much expense (depending on which lock you’re installing). If you have trouble with any part of an installation, you can always call a locksmith to help finish installing them.

Commercial locksmith services range from $75 to $500, depending on the job's complexity, such as key duplication, lock installation, or access control system setup.

Yes, with better technology now available, it’s possible to add a smart lock on your sliding glass door. Smart locks can be easy for almost everyone in the family to operate and can connect to other safety features in the home, like smart lights. Plus, they’re harder for would-be criminals to pick. However, keep in mind that smart locks can potentially be hacked, and some completely rely on phones or Wi-Fi, which can be an issue if the power goes out.

Door locks should be changed roughly every seven years. The average lifespan of a door lock is seven to 10 years, so it’s best to err on the side of caution and change them early, especially if they are showing signs of wear and tear. Examples of deterioration include visible rust and difficulty opening or closing the door. Some locks can work safely beyond 10 years, but it depends on how often they are used and whether they are exposed to damaging environmental conditions like precipitation or extreme temperatures.

The Greenfield, NH homeowners’ guide to locksmith services

From average costs to expert advice, get all the answers you need to get your job done.

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