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Precision Window Installation
Window Installation & Replacement
Brighter Homes. Lower Bills. Lasting Comfort.
From single-unit replacements to full-home window packages, we handle removal, structural prep, and installation with close attention to the details that decide long-term performance: flashing, weather sealing, and insulation at every opening. The result is a home that holds temperature better, feels quieter inside, and gains frames that keep operating smoothly for years.
TRUSTED BY HOMEOWNERS ACROSS SEATTLE
- Licensed
- Bonded
- Insured
BBB ACCREDITED BUSINESS
Blackrock Builds, LLC is proud to be a BBB Accredited Business with an A+ rating. Our accreditation reflects our commitment to integrity, transparency, and resolving customer concerns in good faith.
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STATE COMPLIANCE
Washington Contractor License: BLACKBL750N7
Project Portfolio
A selection of our most ambitious transformations.
Ready to start your next build?
Submit your project details for a comprehensive technical estimate. Our specialists respond within 24 business hours.
The BRB Advantage
Why Discerning
Homeowners Choose Us
14+ Years of Excellence
A decade and a half of refining our craft and mastering the nuances of high-end residential construction.
Master Certified Teams
Our installers aren't just laborers; they are certified artisans trained in the latest technical envelope standards.
Sustainable Sourcing
We prioritize ethically harvested timbers and low-impact materials that respect the environment as much as your home.
Up to 50-Year Warranty
We stand by our work with an industry-leading craftsmanship warranty of up to 50 years, giving you lasting peace of mind.
Precision Engineering
Utilizing advanced laser measurements and structural analysis to ensure every cut and joint is architecturally perfect.
$1M General Liability Insurance
Licensed, bonded, and insured with $1M general liability coverage and a $30,000 contractor bond for your protection.