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Diamond Certified Resource Welcomes Five New Top Rated Companies in June 2026

In June 2026, Diamond Certified Resource proudly recognized five distinguished companies that have earned the prestigious Diamond Certified award. This accolade is given to firms that achieve the highest ratings in quality and customer service, validated through extensive surveys conducted with real customers.

The companies honored with this accolade include:

1. American Custom Contractors
2. First Tier Exterior
3. Hexagon Construction
4. Irbis HVAC Inc.
5. Masterpiece Remodeling Inc.

These businesses stood out in a thorough 12-step rating process, ensuring that only those that deliver exceptional service and helpful expertise gain this esteemed recognition. Each company must achieve a score of 90 or above on a 100-point scale to qualify, emphasizing the high standards necessary to earn the Diamond Certified status.

Methodology Behind the Award

The rigorous evaluation process conducted by the Diamond Certified Research Team involves surveying a random sample of verified customers. This methodology is designed to capture the most accurate ratings of local companies available. The surveys assess various performance metrics, including customer satisfaction scores and the likelihood of customers re-hiring the service providers. The research team also verifies each company's state licenses, insurance, and business practices to ensure compliance and quality service.

The Award-Winning Companies

American Custom Contractors

American Custom Contractors specializes in roofing services for both residential and commercial clients across Montgomery County, Prince George's County, Fairfax County, and Washington D.C. The family-owned business is well-equipped to handle various roofing systems and also provides exterior renovation products, including siding, windows, and gutters.

First Tier Exterior

Operating throughout Silicon Valley, First Tier Exterior offers an extensive range of exterior renovation services for homes and businesses alike. Their expertise encompasses plastering, painting, and installing windows and doors. They also feature a stucco showroom in Santa Clara, allowing customers to view texture and color options thoroughly before making decisions.

Hexagon Construction

Located in the Bay Area, Hexagon Construction excels in remodeling services that encompass kitchens, bathrooms, and complete home renovations. The company prides itself on transforming garages into multifunctional spaces tailored to the individual needs of clients, bringing innovation and creativity to home remodeling projects.

Irbis HVAC Inc.

Irbis HVAC Inc. is a trusted provider of electrical repair, installation, and maintenance services in Santa Clara, San Mateo, and Alameda Counties. With specialized licenses in HVAC and plumbing, the company tackles projects ranging from electrical panel upgrades to comprehensive rewiring, contributing to the comfort and energy efficiency of homes.

Masterpiece Remodeling Inc.

Based in Marin County, Masterpiece Remodeling Inc. focuses on transforming kitchens, bathrooms, and home exteriors. The company is equipped to handle various remodeling projects and offers additional services like room additions and exterior repairs, ensuring high-quality craftsmanship tailored to client specifications.

A Commitment to Quality

The Diamond Certified award reflects a commitment to quality and customer satisfaction, serving as a reliable resource for consumers seeking high-rated service providers in their area. The performance guarantee that accompanies the Diamond Certified status further reassures customers that these companies are devoted to upholding their high standards of service.

As we can see, achieving the Diamond Certified award is no small feat. Companies must not only excel in their respective fields but also demonstrate a steadfast commitment to customer satisfaction. The recognition bestowed upon the five companies this June highlights the importance of quality in local services, paving the way for consumers to make informed decisions when choosing contractors and service providers.

For those seeking premium services across various categories, the Diamond Certified Resource remains an authoritative guide, showcasing top-rated companies across the San Francisco Bay Area and beyond, ensuring consumers can find reliable partners for their needs.