Public Records Check
- Registration-Based Washington doesn't license roofing contractors; instead it requires a statewide contractor registration. We treat this check as met rather than penalise it, but we haven't independently verified this company's registration - confirm it directly with the state before hiring.
- Missing Corporation Our automated search didn't find a registered business entity for Diamond Roofing with the Washington Secretary of State. That doesn't mean the company isn't legitimate. Many roofers operate legally as sole proprietorships, which don't require registration, and a registered business can be filed under a different name, formed in another state, or created too recently for us to match. To confirm how the business is structured, ask the contractor or search the Washington Secretary of State directly.
- Residential Address Diamond Roofing's listed address at 6421 Lake Washington Blvd NE #409, Kirkland, WA 98033 appears to be a residential address. This means the company operates from a real, locatable address rather than a mailbox or PO box, which can make it easier to reach them or resolve issues. Many roofers legitimately work from a home address, so this doesn't speak to the quality of their work, license, or insurance.
- 0 Credentials Our automated search didn't find a manufacturer certification for Diamond Roofing. Many reputable roofers aren't certified by any manufacturer, often by choice, so this isn't a sign of a problem. If a manufacturer-backed warranty matters to you, ask the contractor which certifications they carry.
- Excellent Ratings Across the platforms we identified for Diamond Roofing (Google, Yelp), the blended average is 4.8 out of 5, which we label Excellent. This is a plain average of public customer ratings, not a RooferWatch score. A high average reflects past customers' experiences, not a guarantee of yours, so read the underlying reviews and weigh them yourself.
We verified 3/5 public records for Diamond Roofing. The more of a company's record you can check, the more informed your hiring decision.
Contact Info
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Phone
This phone number belongs to an iPhone, not a landline, so both calling and texting is supported.(206) 973-6575
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Primary Address
6421 Lake Washington Blvd NE #409, Kirkland, WA 98033
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Website
diamondconstructionwa.com
- Socials
Company Description
Diamond Roofing provides residential and commercial roofing services in the Seattle area. The company offers roof replacement, roof repair, roof inspection, roof leak repair, commercial roof replacement, commercial roof waterproofing, commercial roof inspection, and skylight installation and repair. Diamond Roofing works with composition asphalt shingles, metal roofing, torch-applied roofs, TPO roofs, flat roofs, and cedar shake materials. The company is fully licensed and insured. Warranties include a 10-year guarantee on new and replacement sloped roofs, a 20-year guarantee on flat roofs, and up to a 5-year guarantee on repairs. Diamond Roofing serves Seattle, West Seattle, Kirkland, Bellevue, Sammamish, and Issaquah.
Services Offered
- Roof ReplacementRemoving an old or failing roof system and installing a new one, typically when repairs are no longer cost-effective.
- Roof RepairFixing localized damage such as leaks, missing shingles, damaged flashing, or deteriorated sections without replacing the entire roof.
- Roof InspectionA professional examination of the roof's condition, identifying damage, wear, leaks, and remaining lifespan to guide maintenance or replacement decisions.
- Roof Leak RepairLocating and sealing active leaks around flashing, vents, and worn shingles to stop water intrusion.
- Commercial Roof ReplacementFull removal and installation of new roofing systems on commercial properties, often involving large flat or low-slope areas.
- Commercial Roof WaterproofingSealing and coating commercial roof surfaces to prevent water penetration and extend the life of flat or low-slope roofs.
- Commercial Roof InspectionDetailed evaluation of commercial building roofs to check for damage, wear, drainage issues, and code compliance.
- Skylight InstallationCutting and framing an opening in the roof and installing a window unit to bring natural light into interior spaces.
- Skylight RepairRepairing leaks, cracks, or seal failures around skylights to restore waterproofing and prevent interior water damage.
- Composition Shingle RoofingInstalling asphalt or fiberglass shingles, a common and affordable roofing material that typically lasts 15-25 years.
- Metal RoofingInstallation of durable metal panels or standing seam roofing, which resists weather, lasts 40-70 years, and works well in snowy or coastal areas.
- Flat Roof InstallationInstallation of roofing systems on flat or nearly flat commercial and residential roofs using membranes, coatings, or built-up materials.
- Cedar Shake RoofingInstallation of split cedar wood shakes, providing a rustic aesthetic and natural insulation, though requiring regular maintenance.
- TPO RoofingInstallation and repair of thermoplastic polyolefin membrane roofing, a durable single-ply system commonly used on flat commercial roofs.
- Torch-Applied RoofingInstallation of modified bitumen roofing sheets sealed by heating with a torch, common on flat commercial roofs.
- Emergency Roofing ServicesRapid response repair or temporary protection of roofs damaged by storms, leaks, or other urgent conditions to prevent further interior damage.
Company Info
- Lead-Safe (RRP)
- N/A
- License Number
- MOCL78502
- Entity Type
- Limited Liability Company (LLC)
- Address Type
- Residential
- Multi-State Company
- No
- Website Age
- 11.2 years old
Inspections and Violations
U.S. and Washington OSHA dataReviews and Reputation
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Avg. Rating
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BBB NR
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Google
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Yelp
Reviewers consistently praise Diamond Roofing and Construction for quality workmanship, professionalism, and reasonable pricing. Several customers report that owner Eugene and his crew completed projects quickly, on schedule, and with attention to detail - including seamless patching, specialized GACO roof application, and PVC installations. Multiple reviewers describe the team as cordial, responsive, and willing to go above and beyond customer expectations. However, two reviewers report negative experiences, describing the crew as unprofessional, lazy, loud, and confrontational, with complaints about extended timelines, poor communication, and reluctance to complete work. These dissatisfied customers characterize their experiences as involving a "bait and switch" between the estimate and execution phases.
Review Signals Over Time
By sheer volume of Google reviews (a measure of how much feedback a firm has gathered) Diamond Roofing ranks 11th of the 141 roofers we track across Washington, ahead of about 93% of them. Over the past year it has pulled in 29 reviews - the most recent last month - for a rate of roughly 5.6 reviews per month, which is faster than approximately 85% of the other Washington roofers. Its 5.0-star average rating sits just above the Washington median of 4.9 stars. The owner responds to 69% of reviews, which is above the typical Washington roofer’s rate of 10%.
Service Areas
- Seattle, WA
- West Seattle, WA
- Kirkland, WA
- Bellevue, WA
- Sammamish, WA
- Issaquah, WA
