Independently Rated Highest in Quality
S i x t h                              Consecutive Year        
Originally Earned:
September 2004
We declare that Leff Construction HAS QUALIFIED for and continues to meet the Ongoing Research and Rating Requirements for Diamond Certified® status.
Certificate #473
(707) 823-4899
Award-Winning Contemporary Home, Geyserville

Since 1978, Leff Construction has been building and remodeling homes for clients throughout Sonoma County. They are award winning builders and remodelers of fine residential, commercial and historic properties. As a design/build company, they use a team approach. The alliance of client, architect, engineer and builder is formed early in the design phase. With solid working relationships, clear communication among all parties, the entire remodeling process flows smoothly and efficiently to its on-budget and on-time conclusion.

All Leff Construction employees are highly competent, skilled craftsmen who undergo continuous training. They are people you can feel confident about having on your project and in your home. Leff Construction is a proud recipient of Remodeling magazine's prestigious BIG 50 award.

David Leff is a leading proponent of environmentally friendly remodeling and has distinguished his company for promoting air quality and energy conservation in design/build services. The company’s Green/sustainable building practices and energy conservation have become a signature for their large remodels and custom homes. He has been a member of North Coast Builders Exchange since 1979. He also serves on their Green Building Committee and was elected in July 2009 to serve on the Board of Directors.

Owner Philosophy

"Our commitment is to be on the job from dream to final occupancy - from design and estimating through construction and clean-up. Our aim is to assist you, to meet your needs and desires, your budget and your timeline from beginning to end and, ultimately, to provide a rare and enjoyable construction experience."

Additions/Remodels
Custom Homes
Historic Renovations
Building Performance/Energy Upgrades
Green Building

Serving Sonoma County
Findings based on statistically reliable research from 74 surveys

Customer Satisfaction

Survey Question: On a scale of 1 to 10 how satisfied were you with the quality you received?
Chart.

Company Credentials

Workers Compensation
Liability Insurance
License Verification
Business Practices
Current Complaint File

Customer Loyalty

Survey Question: If you needed this product or service in the future, would you use this company again?
Chart.
99%
n = 74

Diamond Certified Qualification

Based on 74 customer surveys, we declare
Leff Construction
has passed all rating steps and has earned
The Diamond Certified Award
No. 473
Continuously qualified since September 2004.
David Pak
Director of Ratings Research
American Ratings Corporation

Verbatim Survey Responses From Only Verified Customers

"I was very happy with the supervisor who was on the job. He was good at monitoring the work crew."

–Laurie R.

"I liked the follow-through at all levels. I thought they were right on top of the whole job."

–Geri C.
Research conducted by American Ratings Corporation. Ratings Methodology

Company Capabilities Table

Leff Construction
(707) 823-4899
(707) 823-5014 fax

Mon - Fri: 8am - 5pm

Serving Sonoma County
15
521133
Liability Insurance, Worker's Compensation

Build It Green Certified

David Leff, Owner