| Rawhide Plumbing | Rawhide Plumbing | — | (530) 474 5522 | Other | Shingletown · Shasta County | — | — |
| Ray Meyer Construction | Rayman Eldon Meyer | — | (530) 209 7693 | GC, remodel, ADU | Anderson · Shasta County | — | — |
| Raymond M Tugwell | Raymond M Tugwell | — | (530) 604 5448 | Other | Redding · Shasta County | — | — |
| Rb Floors | Rb Floors | — | (530) 549 9201 | Other | Redding · Shasta County | — | — |
| Rbf Construction | Ronald Bruce Farris | info@rbfconstruction.com | (530) 547 4651 | GC, remodel, ADU | Palo Cedro · Shasta County | — | — |
| Real Estate Solutions | Real Estate Solutions | — | (530) 347-6765 | Property managers | Redding · Shasta County | — | — |
| Red Hawk Tree Care | Red Hawk Tree Care | — | (530) 355 0316 | Other | Redding · Shasta County | — | — |
| Red Sky Asphalt Services INC | Charles Ben Webster | — | (530) 275 4424 | Other | Shasta Lake · Shasta County | — | — |
| Red White And Blue Builders INC | James Gerald Mckeown | — | (707) 293 8428 | GC, remodel, ADU | Redding · Shasta County | — | — |
| Red White And Build Construction | David Bradley Martin | — | (530) 953 9158 | GC, remodel, ADU | Redding · Shasta County | — | — |
| Red's Painting Co | Nicholas Dean Page | — | (530) 917 7893 | Windows, patio, painters | Igo · Shasta County | — | — |
| Redding Airport Constructors | F Shea Construction INC J | — | (530) 246 4292 | Other | Redding · Shasta County | — | — |
| Redding Alarm And Design | Redding Alarm And Design | — | (530) 515 8871 | Electricians | Redding · Shasta County | — | — |
| Redding Aquarium & Pond | Redding Aquarium & Pond | — | (530) 549 7125 | Windows, patio, painters | Redding · Shasta County | — | — |
| Redding Asphalt | Redding Asphalt | rec2004@yahoo.com | (530) 227 7312 | Other | Palo Cedro · Shasta County | — | — |
| Redding Building Maintenance | Redding Building Maintenance | — | (530) 262 2855 | GC, remodel, ADU | Redding · Shasta County | — | — |
| Redding Canvas INC | Jesse Nathan Patrick | — | (530) 365 0051 | GC, remodel, ADU | Redding · Shasta County | — | — |
| Redding Comfort Heating & Air INC | John Gerard Krzywicki | — | (530) 222 0555 | HVAC | Redding · Shasta County | — | — |
| Redding Communications | Bruce William Mc Dilda | — | (530) 365 8001 | Other | Redding · Shasta County | — | — |
| Redding Counter Tops INC | Gary Wayne Thompson | — | (530) 222 2442 | Other | Redding · Shasta County | — | — |
| Redding Fence | Redding Fence | — | (530) 524 1257 | Other | Redding · Shasta County | — | — |
| Redding Heating & Air Conditioning | Eric Ryan Krzywicki | — | (530) 223 1332 | HVAC | Redding · Shasta County | — | — |
| Redding Metal Crafters INC | Robert Arlie Jr Robinson | — | (530) 222 4400 | Other | Redding · Shasta County | — | — |
| Redding Repair And Remodel | Redding Repair And Remodel | — | (530) 941 4078 | GC, remodel, ADU | Redding · Shasta County | — | — |
| Redding Tile & Stone Works INC | Antoinette Sarah Mendoza | — | (530) 221 3990 | Other | Redding · Shasta County | — | — |
| Redding Trail Alliance INC | Nathan Loki Knudsen | — | (530) 515 0908 | Other | Redding · Shasta County | — | — |
| Redding Tree Service INC | Scott Ian Mc Claskey | — | (530) 227 2215 | Tree | Shasta · Shasta County | — | — |
| Reed Construction | Christopher Glenn Reed | — | (530) 351 2152 | Other | Redding · Shasta County | — | — |
| Reed Construction Co | William Samuel Reed | — | (530) 241 0994 | GC, remodel, ADU | Redding · Shasta County | — | — |
| Reeves Window Tinting INC | Jonathan Kendall Reeves | reeves.tinting@gmail.com | (530) 691 9665 | Other | Redding · Shasta County | — | — |
| Refuge Roofing & Consulting INC | Leslie Johnson Williams | — | (615) 723 5588 | Other roofers | Palo Cedro · Shasta County | — | — |
| Remco INC | Markus Lee Reemts | — | (530) 852 1373 | Electricians | Anderson · Shasta County | — | — |
| Response Construction | James Murdock Mc Dilda | — | (530) 605 9881 | GC, remodel, ADU | Redding · Shasta County | — | — |
| Restoration Paint Company LLC | Colson James Warren | — | (530) 276 7542 | Windows, patio, painters | Redding · Shasta County | — | — |
| Revive Mechanical INC | Dalen Matthew Philp | info@revivemechanical.com | (530) 444 2248 | HVAC | Redding · Shasta County | — | — |
| Richard Alan Norrup | Richard Alan Norrup | — | (530) 275 1536 | GC, remodel, ADU | Redding · Shasta County | — | — |
| Rick L Thurmond Electric | Ricky Lee Thurmond | — | (530) 524 0655 | Electricians | Redding · Shasta County | — | — |
| Rick L Webb Construction | Rick Lee Webb | — | (530) 604 0083 | GC, remodel, ADU | Redding · Shasta County | — | — |
| Rick Marty Plumbing | Rick Marty Plumbing | — | (530) 246 2901 | Other | Redding · Shasta County | — | — |
| Rick Salley Construction | Salley Rick | — | (530) 722 7451 | GC, remodel, ADU | Redding · Shasta County | — | — |