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Business Details
14 Years
experience
Your Trusted Window & Door Experts in Honolulu, HI
Diamond Head Windows has been serving the island of Oahu since 2012, offering professional window and door installation services tailored to Hawaii's unique climate. Our team combines over 30 years of collective experience with a commitment to local values, ensuring every project reflects our dedication to quality and customer satisfaction. We specialize in Leahi brand vinyl replacement windows, sliding patio doors, and custom solutions designed to enhance energy efficiency and home aesthetics. Our lifetime warranties on products and installations underscore our confidence in the durability and performance of our offerings.

By employing only trained, in-house installers and avoiding subcontractors, we maintain strict quality control and accountability. Recognized as Hawaii's largest locally owned window and door replacement company, we have earned the trust of homeowners through transparent communication, competitive pricing, and a customer-centric approach that prioritizes education over pressure. Our community involvement, including partnerships with the Hawaii Food Bank, reflects our dedication to improving the neighborhoods we serve.
Services
Window Installation Door Installation Gates & Fences Energy-Efficient Windows Hurricane Windows Custom Vinyl Windows Patio Door Replacement Screen Repairs Entry Door Installation Garage Door Solutions
Details
  • Year established: 2012
Highlights and features
  • Lifetime warranties on all Leahi windows, doors, and installations
  • In-house, expertly trained installers with no subcontractors
  • Products specifically engineered for Hawaii's climate challenges
  • Accidental glass breakage coverage included for life
  • 0% financing available for qualified customers
Associations and certifications
  • InstallationMasters
What people say
Outstanding customer service Professional installers Lifetime warranties Energy-efficient upgrades Highly recommend
Services
Window Installation
Our premium Leahi vinyl windows reduce noise and increase energy efficiency while withstanding Hawaii's climate. Custom-measured for exact fits, they feature low-e glass, argon gas fills, and lifetime warranties. Installation is handled by our trained employees, ensuring durability and performance tailored to local conditions.
Door Installation
We install contemporary and French sliding patio doors with energy-efficient designs. Options include multi-slide, bi-fold, and hurricane-resistant models. All doors feature secure locking systems and marine-grade materials to combat Hawaii's humidity and salt air, backed by lifetime product and installation warranties.
Gates & Fences
Our powder-coated aluminum gates and fences resist rust, termites, and weather damage. Customizable in modern styles and colors, they enhance curb appeal while providing security. Installation includes motorized options and privacy configurations, designed specifically for Hawaii's coastal environments.
Energy-Efficient Windows
Dual-pane, low-e glass windows with argon gas fills minimize thermal transfer, reducing cooling costs. Neat Glass coating ensures easy maintenance. Designed for Hawaii's climate, these windows block UV rays while maintaining clear views and long-term durability through our expert installation process.
Hurricane Windows
Impact-resistant windows meet Hawaii's strict building codes for hurricane preparedness. Features include reinforced frames and laminated glass to withstand high winds and debris. Installation includes pressure-equalizing designs and lifetime warranties, providing peace of mind during storm seasons.
People
Ryan Paul
Sales Consultant
With over a decade of window industry expertise, Ryan provides personalized consultations, explaining product details and guiding homeowners through selection processes while ensuring accurate estimates and timely project execution.
Marisa
Operations Manager
Marisa coordinates installations with precision, managing logistics and timelines to ensure seamless project execution. Her organizational skills guarantee smooth transitions from consultation to completion for every customer.
Stan
Lead Installer
Stan leads installation crews with 15+ years of field experience, ensuring every project meets exacting standards. His team completes complex installations efficiently while maintaining meticulous attention to detail and customer satisfaction.
Questions
Do you offer lifetime warranties on window installations?
Yes, we provide lifetime warranties on both Leahi windows and our installation workmanship, covering accidental glass breakage for life.
How long does window installation take?
Most projects complete in 1-3 days depending on scope. Our crews efficiently install 20+ windows in under two days while maintaining quality standards.
Are your products suitable for Hawaii's climate?
Our windows and doors use marine-grade materials specifically engineered to withstand Hawaii's humidity, salt air, and tropical weather conditions.
Do you provide financing options?
We offer 0% financing for qualified customers, making premium window and door replacements accessible without upfront financial strain.
What service areas do you cover?
We serve all of Oahu, including Honolulu, Kailua, Mililani, and Hawaii Kai, providing free consultations and showroom access in Aiea.
Can you match HOA window requirements?
Our customization options include color matching and design features that comply with most HOA guidelines while maintaining energy efficiency standards.
Reviews (4)
Todd Mckinstry
Dec 01, 2021 Report
Positive:Professionalism
Goood company with quality products. The best installers in Hawaii. Highly recommend
Jo Duarte
Aug 04, 2021 Report
Terrible service. They didn't have all for windows installed. Only installed 5 of 7 windows claiming I only purchased 5 windows. I had to argue with Diamond Head rep, then they said others 2 are delayed, making like it was my fault. I said it's an inconvenience to take off work again for another installation. Respond was that I just leave my house unlocked for the workers to install the other 2 windows and if anything gets stolen...that's the reason you have home insurance for. I later spoke to someone else about this and they apologized.
L. Lee
Jun 24, 2020 Report
Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
The entire crew of Diamond Windows is made up of exceptional workers using exceptional products. They absolutely stand behind their guarantee; John Rice just came by to check on a locking mechanism. He was professional and prompt. His visit exemplified this companys trustworthiness.
Services:Door installation,Window installation
Carol M.
Jun 19, 2019 Report
They like to litter on private property with their lime green fliers. If they dont respect private property, then what respect could they have for their customers? -PS: tape+sunshine+painted wood= damaged paint...on Private Property, if I hadnt already mentioned that... Take your tacky fliers elsewhere.