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Photo credits

The photos on this site come from Wikimedia Commons. Each is public domain or under a Creative Commons license, listed below with its author and source page.

PhotoAuthorLicenseChangesSource
Electrician on an orange stepladder reaching up to replace a ceiling light fixture in a hallwayNPS / Jacob W. FrankPublic domainCropped, resizedWikimedia Commons
Hands stripping a wire with pliers at an open junction box on a white wallSanteri ViinamäkiCC BY-SA 4.0Modified: cropped, resized, darkenedWikimedia Commons
Electrician in a hard hat taping and pulling red wire overhead between ceiling joistsSid MbogCC BY-SA 4.0Modified: cropped, resized, darkenedWikimedia Commons
Smiling plumber kneeling beside an appliance, reconnecting a drain hoseDr.DesemerCC BY-SA 4.0Modified: cropped, resized, darkenedWikimedia Commons
Blue torch flame heating a copper pipe joint for solderingneffkCC BY 2.0Modified: cropped, resized, darkenedWikimedia Commons
Plumber bent over cutting green supply pipe at a wall openingAmuzujoeCC BY-SA 4.0Modified: cropped, resized, darkenedWikimedia Commons
Sheet metal worker in a lift basket guiding a large duct section up a concrete wallU.S. Dept. of Energy, Savannah River SitePublic domainCropped, resizedWikimedia Commons
Two workers in hard hats fitting a rectangular duct between floor framing, seen from aboveArchitect of the CapitolPublic domainCropped, resizedWikimedia Commons
HVAC technician connecting refrigerant gauges to a new outdoor heat pump unitVernon Air Conditioning, Plumbing & Electrical ServicesCC BY 2.0Modified: cropped, resized, darkenedWikimedia Commons
Roofer kneeling on underlayment driving nails with a nail gunPatsy Lynch / FEMAPublic domainCropped, resizedWikimedia Commons
Roofer's hands seating a metal tile panel over a battenMark Wolfe / FEMAPublic domainCropped, resizedWikimedia Commons
Crew lifting a framed stud wall into place on a slabGeorge Armstrong / FEMAPublic domainCropped, resizedWikimedia Commons
Hands pushing a hand plane along a board, wood shavings curling offKelvinJMCC BY-SA 4.0Modified: cropped, resized, darkenedWikimedia Commons
Carpenter in a hard hat nailing floor framing with a hammerJoe MabelCC BY-SA 3.0Modified: cropped, resized, darkenedWikimedia Commons
Instructor holding a cable in front of an electrical controls training boardUS Department of LaborCC BY 2.0Modified: cropped, resized, darkenedWikimedia Commons
Electrical student in a blue hard hat explaining a panel to a visitorUS Department of LaborPublic domainCropped, resizedWikimedia Commons
Rear of a work van packed with organized tool bins and gearthe.FirebottleCC BY-SA 2.0Modified: cropped, resized, darkenedWikimedia Commons
Contractor with a tool belt listening to an older homeowner in a hallway of a house under constructionUSDAPublic domainCropped, resizedWikimedia Commons
Two women at a kitchen table going over receipts and paperwork on a laptopJohn Ficara / FEMAPublic domainCropped, resizedWikimedia Commons

Photos under a CC BY-SA license are shared under the same license. Pages crop photos to fit and darken them where text sits on top.