Customer Stories

Our story is told
one address at a time.

Diamond Construction proved to be an outstanding partner for our extensive (and fifth) home remodel project - large enough to attract and maintain an outstanding group of subcontractors and craftsman; small enough for Keith and Jeff Stone to be personally involved with all the key design and construction decisions and activity at the job site.

Diamond consistently delivered high quality results at low cost through careful attention to bids, orders, and billing; tight scheduling to avoid subcontractor delays and return visits; great attention to quality details on acceptance procedures with subcontractors, and superb job site management. Importantly, they made several design suggestions that added significant value to the home for minimal cost.

Diamond Construction's 35 year reputation for honesty and professionalism was identified in our contractor selection process and it was absolutely confirmed throughout our project. We'd highly recommend Diamond Construction and would do another project with them in a heartbeat!

Steve and Mary Welch

We've used other contractors before Diamond, but only Diamond after…Over the last 24 years we have worked with Diamond on 4 major projects both inside and outside our home.

They always put their client's satisfaction first and foremost. They are always responsive, knowledgeable, diligent, fair, and trustworthy. They fully disclose cost and don't barage you with unaticipated " change orders." They have wonderful subcontractors.

The quality of their work is unsurpassed. They leave the job site clean daily, and their employees feel like part of the family. We look forward to our next project with them.

Terry and Sharron Ranahan

Diamond Construction is one of a kind! Our experience was 5 stars + and would recommend them to anyone. We have all heard of the nightmare stories of contractors being late, over charging, not following through, lack of transparency, leaving job sites messy, getting complaints from neighbors, having problems with permitting/city, not doing things correctly, hiring bad sub-contractors and charging you for their mistakes.

With Diamond, you do not have to worry about any of the above….not by a long shot! Looking back and comparing my experience with others, we feel blessed that we got to work with Diamond. They were amazing, with the big things and the little details that we appreciate so much now. Diamond built our family a dream home that has already created so many lasting memories.

Remodeling or building a new home isn't easy, its a lot of work for both the contractor and homeowners and is a big decision. Marina and I can honestly and without hesitation recommend Diamond Construction to anyone. To this day, they still respond to messages and communication we send as if we were still clients….a testament to how they approach their business, you are not just a client, you are like family.

Cesare & Marina A

Diamond Construction has been our exclusive builder for nearly 40 years. They were the first contractor that we hired in the early 80's and I believe that it was Keith Stone's first formal contract. Since that time, they have done 4 major residential remodels for us and about to begin their fifth.

We are are currently working with Jeff Stone, the second generation, and Keith. The scope of their work has expanded both by Jeff increasing their projects while moving into residential and multi family development. I have recently become a financial partner in Diamond's development projects.

Diamond puts the welfare of their employees and sub contractors ahead of their own, which serves as a cornerstone of their success. In times high demand they never expand beyond their resources, and in time of economic slow down, they keep their employees and subs busy, thus creating essential long term loyalties.

It has been an amazing and rare relationship combining a high integrity family business with a very qualified and ambitious second generation.The reputation they have earned in the Lafayette, Orinda, Moraga Area has been their competitive advantage. They are not only trusted by the various planning departments, but they are frequently ask for their council. Diamond has specialized in quality residential building in our area for almost 40 years, always anticipating the aspirational demand for ever higher quality construction.

Steven and Mary Read

Diamond Construction is the best of the best!!!

We wouldn't even consider using any other builders than Keith Stone. In 1989 we did a MAJOR remodel with Diamond and again in 2008 adding an office and new master suite.

We couldn't be happier with the outcome. You will be fortunate if you are able to get him to do your project.

• Kerry & Margie Murphy

My husband and I began the remodel of our home in Orinda in 2016. We interviewed five builders and decided to work with Keith and Jeff Stone and their team at Diamond Construction. It was one of the best decisions we have ever made. The work performed on the house was of the highest quality, and the workers were all professional and meticulous. The head forman, Jim was on the site continuously working along side the team demanding the best. Additionally, he diplomatically managed neighbors and traffic issues with the construction trucks.

Keith was transparent and efficient with the billing. All invoices were prepared and presented to us with clear tracking of expenses and budget including all supporting documentation. Yes, there were some glitches; the first year had a record rainfall season and some materials were delayed. These and other problems were managed and time adjustments made.

The result of our extensive remodel exceeded our expectations. The house is not only solidly built but the workmanship is exquisite. Needless to say, we give our highest recommendation to this experienced and excellent company. It truly was a pleasure to work with Keith and Jeff Stone and the Diamond Construction family.

Rosemary and Pat Tool

Diamond Construction holds a class of its own when it comes to integrity, quality and customer care. A family business run by founder Keith Stone and his son Jeff Stone, Diamond consistently delivers beautiful craftsmanship with precision care. The firm's entire team has long-term relationships in mind with everything they do. If they can't do it in a way that bears the test of time, they won't take the job.

While Diamond Construction sets a high bar for quality, they are sensitive to cost and highly skilled at improving design within existing footprints. Keith's 30+ years of experience helped us transform a 4800 sq. ft. custom 1960's contemporary home into a gem in line with today's market. He and Jeff presented creative, affordable and viable solutions to costly conundrums that arose from new code requirements. In the end, they presented a home that was in a class of its own, just like Diamond Construction.

Integrity, quality and service form the backbone of Diamond Construction. What's truly unique about Diamond is the heart that drives the firm. Across the board, Diamond's crew consistently hears customers and responds to their concerns. They are compassionate and supportive in tough times, celebrative in times that are good, and always your best advocates for getting a project done well, on time and on budget.

Carolyn Ockels

My husband and I have worked with a number of contractors on remodels to our home. This is the most satisfactory remodel we have undertaken.

Owner Keith Stone and son Jeff, our project manager were both involved with the job which presented several challenges from soil conditions to complicated roof conditions. From the start, they were creative problem solvers, great communicators, and their attention to detail was phenomenal. Jeff was on site often and both Keith and Jeff were immediately available when problems arose. They have a knowledgeable, efficient work crew and carefully choose sub-contractors who they monitor.

I was particularly impressed with the good rapport, communication and respect between the subs and contractor. Jeff expected and ensured the highest quality of workmanship which we greatly appreciated. We can't recommend Diamond Construction highly enough!

John and Patty Winther

I have the HIGHEST regard for Diamond Construction.

I have used this company for three projects over the past twenty know exactly what the end results will notch quality, professionalism and they truly listen to you on your wants and needs.

This isn't a group that goes away once the project is complete either....they are always there for you....they are knowledgeable and honest which is unique to the construction business

Katie Nicholson

We have had the pleasure of working with Diamond Construction over the last year on the complete remodel of both the interior and exterior of our Orinda home. Our initial interaction was with the owner Keith Stone and then with is son, Jeff, who was involved on a daily basis as Project Manager. Having done a number of major remodels we can attest Diamond Construction was the most well organized and well run project we have been involved with. The knowledge and experience that Keith brings to the table is invaluable.

Their crews and subcontractors reflect Diamond's quality and principals. Both Keith and Jeff have the attitude and ability to put a team together that will get the job done not only on time but with an eagle eye on the budget.

Their ideas and suggestions offered prior to and during construction contributed to making our home one of distinction in their attention to detail. It suffices to say that for any future projects we would only consider using Diamond Construction and know that trust will be well placed. We are proud to say that Keith and Jeff have become not only our contractor of choice but our friends.

Scott & Nancy Hindes

Keith Stone and his team at Diamond Construction are honest, professional, hardworking, and build great, solid and beautiful homes.

We have used them for two separate projects- new home construction and addition. Repeat business is common for Diamond Construction and we think that speaks volumes about their integrity in the building industry and quality of workmanship.

We highly recommend Diamond Construction.

Chuck & Susan Gruye

Diamond performed a major remodel of our Lafayette home: complete kitchen and dining room; double garage, including new slab; doors and hardware throughout; and lots of incidentals.

Working with Diamond was a dream! Their work flow and cost estimates were clear and concise, and spot on. The schedule was extended only a bit by our change orders, and the final invoice was within 1%. Jeff and Keith met with us nearly every day, and involved us in every step.

The subs were timely, reliable, personable, professional, and routinely performed excellent work. They have all partnered with Diamond for many years, and obviously have a lot of respect for Keith and Jeff. We would use any of them again, in a heartbeat.

Richard McIntosh and Helen Agryers

Diamond Construction did an excellent job on our residence.

Our site was steeply sloped with several protected trees and the house included many exacting architectural features.

The final result was outstanding and Diamond Construction were professional, efficient and always easy to work with. We highly recommend them.

• Karin and Ian Deas