Quality Since 1944

Established in 1944, our focus on quality has made us the contractor of choice for many government agencies and private associations in Western Washington.

Proven Value

Double chip seal (Double Bituminous Surface Treatment or DBST) may be the most cost effective way to deal with asphalt pavement that has deteriorated too far to be saved by a single chip seal.

Conservation

Applying a bituminous surface treatment (BST or chip seal) instead of hot mix asphalt can reduce the use of raw materials by at least half. Conserving our natural resources needs to become a unified effort.

Discover the advantages of Doolittle Chip Seal Services

Asphalt chip seal is a highly efficient, cost-effective method of maintaining and rejuvenating roads. It offers better flexibility and skid resistance than hot mix asphalt (HMA), and when roads are sealed regularly, very little additional maintenance is required.

Learn why Doolittle has been a preferred chip seal contractor for agencies and associations throughout Washington State.

Doolittle Chip Seal

Discover the advantages of Doolittle Chip Seal Services

Asphalt chip seal is a highly efficient, cost-effective method of maintaining and rejuvenating roads. It offers better flexibility and skid resistance than hot mix asphalt (HMA), and when roads are sealed regularly, very little additional maintenance is required.

Learn why Doolittle has been a preferred chip seal contractor for agencies and associations throughout Washington State.

The Value of Double Chip Seal

14-Year Study – Port Angeles, WA

3rd Street (off US 101)

In front of a busy Safeway store and gas station we placed a double chip seal in 2005. The pavement had “block” cracking throughout the entire area. Liquid asphalt CRS-2P was applied, with 1/2"-1/4" aggregate on the bottom lift, 3/8”-#10 for the top lift, then a CSS-1h (diluted) fog seal was applied.

As of April 2019, 14 Years Later (2nd photo), the pavement has developed a few cracks, but is still much improved. Recommend another chip seal at this time, but the previous “block” cracking is not reflecting through.

Watch Doolittle at Work

Our specialized equipment consists of liquid asphalt distributors (tack trucks) and aggregate chip spreaders, all of which have a computer controlled application rate to ensure the proper quantity is applied to the road. Our crew specializes in chip seals, and this focus shows in the quality of our work.

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