I'm closing on a new home and I'm told by the builder that once I close to go to the home and insert the keys they give me at closing and this will change something in the lock so no else will be able to get into my new house.
I've purchased a new front door dead bolt which I plan on using once I move in. I will take the builders door handle out and not use it but I will be using the door dead bolt they installed in the door from the garage to the house.
Can I use the key from my new door handle dead bolt on both doors?  
Thank you,
Dave R

Hello Dave,

Only if the new and existing locks have the same keyway.  Meaning, if the keys from your new lock will slide into the existing one, you can have one of this rekeyed to allow one set of keys to lock/unlock both locks.

By the way, the builder likely use construction keying on your locks so what they are saying is true, but I generally recommend having all of the locks rekeyed, new house or old.



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I do not answer Safe or automotive questions. Period. I am knowledgeable in almost every area of Locksmithing. This includes locks, keys, lost keys, residential and commercial lockouts, rekeying, masterkeying, high security locks, access control, electric locks, security cameras and home safety. I have been running an online business since 2004 where I sell all types of lock and security hardware to everyone from apartment renters to business owners to the US government. Before that I started a locksmith service in 1999. I deal with many types of security equipment including high security safe locks, heavy duty padlocks, exit devices, biometric readers, electric strikes, magnetic locks, full surface hinges and I only sell what I personally stand behind 100%. The online business has given me a more in-depth look at the locksmithing industry, helping me to learn more about each and every product that I offer, as well as products I don't have but end up finding for customers to solve any issues they have with security or door hardware.

Please don't submit any automotive or safe questions as these aren't areas that I can help in.


I have been Locksmithing since 1999 and own my own Locksmithing business. I have many years of hands-on experience through the many services I have performed for my customers. I've run my business the way I wanted, treating everyone as I would like to be treated and knowing that any customer could be my last if I didn't perform my locksmithing duties as I had promised.

I have a diploma in Masterkeying, Advanced Locksmithing & Locksmithing from Foley-Belsaw.

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