Quick answer
A salon root touch-up costs $55-$135 a visit; doing it at home runs about $19 a touch-up. At a 4-week cadence (13 a year) that's roughly $1,480 at the salon versus ~$247 at home - saving most people ~$1,235/year.
How much does covering gray roots cost per year?
Your yearly cost comes down to two things: how often you touch up and what you pay each time. Enter your own salon price, tip, and touch-up cadence above and the calculator returns your real annual cost for the salon versus an at-home kit, plus the savings of going DIY. According to Yelp's June 2026 hair-coloring cost data, a salon root touch-up runs $55-$135 a visit before tip.
How the math works
Touch-ups per year is just 52 weeks divided by your cadence. Each method's annual cost is the per-touch-up price times that frequency, and your savings is the difference between the salon and the at-home kit:
touchUpsPerYear = 52 / touchUpInterval
salonAnnual = salonVisitCost × (1 + tip%) × touchUpsPerYear
homeKitAnnual = (kitPrice / applicationsPerKit) × touchUpsPerYear
annualSavings = salonAnnual − homeKitAnnual
pctSaved = annualSavings / salonAnnual × 100Example with the defaults: 52 / 4 = 13 touch-ups a year. Salon: $95 x 1.20 x 13 = $1,482. At-home Madison Reed: ($38 / 2) x 13 = $247. That's about $1,235 saved a year, roughly 83%, or ~$6,175 over five years.
How often do you really need a root touch-up?
Most people touch up every 3-6 weeks, and gray coverage usually needs the tighter end - around every 4 weeks - because hair grows about half an inch every four weeks. The faster your grays show, the more a salon habit adds up, and the bigger the case for an at-home kit.
Salon vs at-home cost
What a salon charges in 2026
A salon root touch-up is $55-$135 a visit (Yelp, June 2026), with $90-$110 typical for a single-process gloss on short hair. Add a standard 20% tip and a midpoint $95 visit is really about $114 - which is why a 4-week cadence climbs past $1,400 a year.
What at-home kits cost per use
Madison Reed Root Perfection is about $38 for two applications (~$19 a touch-up), and the dpHUE Root Touch-Up Kit is about $37 for two (~$18.50 a touch-up). Either one lands under $20 a touch-up versus $90+ in the chair.
Best at-home root touch-up kits for gray coverage
Permanent kits (Madison Reed, dpHUE)
Permanent creme kits give true coverage that lasts 3-6 weeks and handle up to about an inch of regrowth at the part and hairline. dpHUE also makes a resistant-grays formula for coarse, stubborn hair.
Temporary concealers for between washes (L'Oreal, Garnier)
L'Oreal Magic Root Cover Up (~$12.49) and Garnier Express Retouch (~$12.95) are wash-out cosmetics that hide regrowth until your next shampoo. Switch the calculator to the temporary-concealer method to see their per-year cost - handy for stretching the time between full touch-ups.
How we calculated this
Prices reflect 2026 data: salon ranges from Yelp's Cost of Hair Coloring Services (June 2026), kit prices from Madison Reed, dpHUE, Ulta, and Amazon, and concealer prices from L'Oreal and Garnier. Frequency assumes hair growth of about half an inch per four weeks. Your own inputs always override the defaults.
When an at-home kit is NOT worth it
If your grays are sparse and you only touch up a few times a year, the salon gap shrinks and the convenience may win. The same goes for delicate corrective color, big color changes, or very resistant grays you've struggled to cover at home - those are jobs a colorist does best.