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The practical application of the Science skill, for fixing of broken equipment, machinery and electronics.

— In-game description

Repair is a Fallout, Fallout 2, Fallout 3, Fallout Tactics and Fallout: New Vegas skill. In Van Buren and J.E. Sawyer's Fallout Role-Playing Game it was renamed to mechanics.

Fallout, Fallout 2 and Fallout Tactics

\text{Initial level}\%=20+\text{Intelligence}

Example: A starting Intelligence of 5.


Fallout 3

Bobblehead Repair

"Why go down with the ship when you can try to fix it?"

\text{Initial level}=2+(2\times\text{Intelligence}+\left\lceil\frac{\text{Luck}}{2}\right\rceil

Example: A starting Intelligence of 5 and Luck of 5.


Repair is used to fix damaged equipment, this is done by having 2 of the same armor or weapon, the user sacrifices parts from one item to bring up the condition of the other. However, the items don't need to be exactly the same, just similar (brass knuckles will repair spiked knuckles, etc.). Repair also determines the starting condition of custom equipment.

Maximum condition

The Repair skill level controls the maximum condition the equipment can be repaired to. This is equal to

\text{Maximum condition}\%=40\%+\left(0.6\%\times\text{Repair skill}\right)

Example: A Repair skill of 50.


In other words, every 5 points in Repair raises the maximum condition by 3%. For example with skill level of 10 allows items to be repaired up to 46%, skill level of 15 allows repair up to 49% and so on. This is important because weapons and armor in poor condition are not as efficient and their value is decreased. Low quality weapons have less accuracy and damage, which reduces effective range and often causes more ammunition to be used to kill enemies when using ranged weapons or more hits when using melee weapons. Ranged weapons in low condition are also more likely to jam, which lengthens the reload animation. Armor in low condition has a lower damage resistance (DR) rating. If the condition of a weapon or armor/clothing is completely neglected, the item will break, making the item unusable until it is repaired (armor and clothing will remain on a character after it breaks, but can not be put back on if taken off).

Repair efficiency

Furthermore, repairs become more efficient. The final condition of the item being repaired is equal to

\text{Repaired condition}=5\%+{x}+\left(5\%\times{y}\right)+\left(15\%\times\text{Repair skill}\right)

Where {x} is equal to the % of the highest of the two item and {y} is equal to the % of the lowest of the two item, and Repair skill is expressed as a percentage.

Example, combining two miniguns with a condition of 20% and 10%, by a player with 10 points in Repair.


The same repair performed by a player with 50 points in Repair will give.


Other than determining the item type, it doesn't matter if you repair item A with item B or the other way around. The formula also works when the two items have different item HP even if one of them is unique — the item conditions are taken into account, not HP.

As can be deduced from the formula, the player's repair skill is the determining factor, the item used for repairs contributing 5% max to the final state. This can make using or even buying items in good condition for repairs uneconomic. On the other hand, using broken items which are worthless at 0% condition is still quite effective.

Ways to increase Repair


Interactions that require Repair skill

  • 30 Repair is necessary to fix the water valves in Megaton during the unmarked quest "Treatment".
  • 35 Repair is required in the Anchorage War Memorial before, during or after The Wasteland Survival Guide to fix a broken door, if he/she has the door's component. Without the component, a Repair skill of 95 is required.
  • 40 Repair is needed during Rescue from Paradise to gain an option to free the children.
  • 40 Repair is needed to fix a broken robot during a random encounter. If you repair it, the scavenger will give you two energy cells. With a speech check, you can convince him to give you 100 caps and the energy cells.
  • 45 Repair is needed to disarm rigged combat shotguns.
  • 60 Repair is needed to disable the turret power generator during Stealing Independence.
  • 75 Repair allow you to repair the elevator to the Statesman Hotel's roof yourself during the quest Reilly's Rangers. This is optional but permits to spare a fission battery.
  • 85 Repair is required to disarm laser tripwire emitters in Raven Rock during The American Dream.
  • A Repair skill check is made when disarming microfusion cells wired to a trapped toilet. It does not specify what the minimum Repair skill is.
  • After using the artillery switch in Takoma Industrial a few times, it will short-circuit. Players with a +33 Repair skill can repair the switch and continue using it.
  • Downloadable content also includes Repair checks on some items, most notably Point Lookout in the Chinese Intelligence Bunker (44 required to shut off radiation).

Non-player characters who repair in Fallout 3

Name Location Repair skill
Bannon Potomac Attire 15 or 16
Crazy Wolfgang Caravan merchant 15~50~75 (see here for more details)
Crow Caravan merchant 15~40~65 (see here for more details)
Donovan Statesman Hotel/Ranger Compound 12 or 13
Durga Citadel 17 or 18
Ernest Roe Canterbury Commons 17
Friday (The Pitt) The Pitt Downtown 12 or 13
Haley (Point Lookout) Haley's Hardware 100
Hoff Caravan merchant 15~40~65 (see here for more details)
Ken Ewers Arefu 15 or 16
Knick Knack Little Lamplight 15
Lucky Harith Caravan merchant 15~45~70 (see here for more details)
Moira Brown Craterside Supply/Underworld 24~54 (see here for more details)
Olin (Anchorage) Outcast Outpost 24
Panada (Point Lookout) House of Wares 19
Pappy Big Town 14
Peabody Citadel 19
Pronto Lock and Load 19
Shrapnel Flak 'N Shrapnel's 15 or 16
Smiling Jack Evergreen Mills Bazaar 15 or 16
Somah (Mothership Zeta) Mothership Zeta 100
Winthrop Underworld 24


  • Repair is used to disarm certain traps (bear traps, pressure plates, etc.).
  • Due to their presence in repair lists, common variants of weapons can be repaired with unique weapons, with the potential loss of these rare items.

Fallout: New Vegas

In Fallout: New Vegas, items can now be repaired to 100% regardless of the player's current skill. However, Repair still governs the effectiveness of repairing one item with another. A higher Repair skill unlocks crafting recipes for different types of ammunition and other gear at reloading benches and workbenches, most notably the Weapon repair kit with 50 skill. High repair also allows the player to repair mechanical or electronic world objects (elevators, doors, computers, etc.).

Ways to increase Repair


Perks that require Repair skill

Perk Requirement Level Additional Requirements
In Shining Armor Dead MoneyGametitle-FNV DM 20 2 Science 70
Junk Rounds Dead MoneyGametitle-FNV DM 45 2 Luck 6
Light Touch Dead MoneyGametitle-FNV DM 45 2 Agility 6
Hand Loader 70 6
Jury Rigging 90 14
Mad Bomber fnvgraGametitle-FNV GRA 45 6 Explosives 45

Interactions that require Repair skill

Non-player characters Who Repair

Name Location Repair skill
Dale Barton Fortification Hill 58
Samuel Kerr 188 Trading Post 64
Calamity Jacobstown 76
Old Lady Gibson Gibson Scrap Yard 79
Mick Mick & Ralph's 85
Joshua Graham Zion Canyon 100
Paladin Sato Brotherhood of Steel safehouse 100
Raul Tejada Black Mountain / Raul's Shack 100
Major Knight Mojave Outpost 100
Sink Central Intelligence Unit The Sink/Big MT 100


  • Non-player characters who repair, charge caps depending on the % damage repaired and the value of the item repaired.
  • Non-player characters will not repair items of apparel, such as Benny's suit, that have no DT.
  • Normally, common weapon variants can not be repaired with unique weapons, unless the Jury Rigging perk is selected, which can result in the potential loss of these rare items.

Notable Repair skilled non-player characters


  • Smitty, blacksmith of the Adytum district of the Boneyard.

Fallout 2

  • Vic, pre-War stuff trader and possible companion of the Chosen One.

Fallout 3

  • Haley, founder and owner of Haley's Hardware.
  • Somah, former Paradise Falls slaver.

Fallout: New Vegas

Fallout: Brotherhood of Steel

  • Ching Tsun, weapons engineer of Secret Vault.
  • Giese, former robot engineer of Secret Vault and repairer of Los.
  • Vault Dweller, founder of Arroyo, former paladin of the Brotherhood of Steel, adventurer and player character in Fallout.

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