Madera Diamond AsphaltPaving contractor in Napa, CA

Madera Diamond Asphalt is ranked #2 of 87 paving contractors in Napa by CR Score, with 60 out of 100 as of November 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

Madera Diamond Asphalt is open 7 days a week. Its listed hours are Monday to Saturday, 8 AM – 5 PM; Sunday, 9 AM – 5 PM. On Saturdays it is open 8 AM to 5 PM, and on Sundays 9 AM to 5 PM. Hours come from the business listing; holiday hours may differ.

Serves Napa and 9 towns within 25 miles: Madera, Madera Acres, Chowchilla, Firebaugh, Mendota, Kerman, Bonadelle Ranchos-Madera Ranchos, Old Fig Garden and Dos Palos. The list is based on the business's location and the usual service radius for paving. Confirm your address is covered when you call.

Madera Diamond Asphalt has a rating of 4.8 from 21 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

Call Madera Diamond Asphalt on (559) 551-3459. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.