For over 30 years, Nagy Bros has proudly provided local homeowners in the Interior and Okanagan with premium, high-efficiency window and door solutions. We deeply understand the region’s intense summer heat and the specific challenges of solar heat gain. Our custom installations are expertly designed to block the heat, lower your cooling costs, and keep your home comfortably cool all season long.

Nagy Bros provides trusted window and door installations across the Shuswap and Columbia-Shuswap. Whether you own a stunning lakefront property or a cozy mountain retreat, our high-efficiency solutions are tailored to your environment. We specialize in superior weatherproofing to protect your home against dramatic seasonal climate shifts. Rely on our expert team to enhance your beautiful views while keeping your home comfortable and secure all year long. 

From scorching semi-arid summers to freezing winter nights, the Thompson-Nicola region experiences some of British Columbia’s most extreme temperature swings. Nagy Bros installs durable, energy-efficient windows and doors engineered to withstand dry climate conditions and heavy thermal stress. Count on our experienced team to keep your indoor climate perfectly controlled, protect your home from energy leaks, and reduce your utility bills year-round.

Whether you own a character home in town or a rural property, Nagy Bros delivers reliable, full-service window and door replacements across Boundary Country. Our experienced local installation teams bring energy-efficient upgrades tailored to your unique home. From initial consultation to final install, we provide seamless, end-to-end service designed to improve your home’s comfort, curb appeal, and energy savings for years to come.

From historic heritage homes to modern mountain retreats, the Kootenays experience distinct weather patterns and cold alpine winters. Nagy Bros provides durable, high-performance window and door solutions built to withstand harsh mountain elements and severe seasonal shifts. Our expert local team delivers precision installations that boost your home’s insulation, maximize natural views, and keep your indoor living space comfortable, quiet, and energy-efficient year-round.

Living in the Lower Mainland means dealing with heavy West Coast rain, coastal dampness, and shifting ocean winds. Nagy Bros provides high-efficiency window and door solutions engineered specifically to seal out moisture and prevent energy loss. Whether you own an urban home or a suburban property, our expert team delivers reliable weatherproofing and precision installations that keep your home warm, dry, and comfortable through every wet winter.

What if my town isn’t listed on this page?

A: We are expanding our service range regularly. Nagy Bros serves many surrounding rural and smaller communities across the Interior, Kootenays, Shuswap, and Lower Mainland. If you do not see your town listed, please contact us. We often accommodate projects in communities throughout British Columbia.

Do you charge additional travel fees for installations outside Kelowna or West Kelowna?

A: We value transparent quoting. Travel logistics and installation costs for projects outside of Kelowna or West Kelowna are fully disclosed and included in your free estimate. You will not face unexpected fees.

Are your windows rated for British Columbia’s diverse climate zones?

A: Yes. All our windows meet strict Energy Star efficiency standards. We select our products to perform in BC’s unique climate, from the solar heat of Okanagan summers and alpine Kootenay winters to the moisture found in the Lower Mainland.

Do you assist homeowners with BC energy efficiency rebates in all service regions?

A: Yes. We are familiar with CleanBC and other provincial energy rebate programs. During your consultation, we provide guidance on eligibility requirements across all service areas to help you reduce your project costs.

Do you provide window and door services for commercial or multi-family properties outside the main hubs?

A: Yes. Our team is equipped to handle multi-family, strata, custom new construction, and renovation projects throughout all the regions we cover.

Do I need to visit your West Kelowna showroom, or can someone come directly to my property?

A: While our West Kelowna showroom is open for visits, we also offer professional on-site consultations and measurements directly at your property in any of our service regions.

How long does a typical window or door installation take once ordered?

A: Manufacturing lead times vary based on your specific project. We provide a clear, realistic timeline during your initial consultation. Installation is efficient and typically takes one to several days depending on the project size.

How do I schedule a free in-home consultation for my location?

A: You can call our office at 778-755-6249 or use the quote request form on our website to provide your details. We will book a consultation for your specific location.

Window and door rebates are available to eligible Interior BC homeowners through several provincial and utility programs, including the Home Renovation Rebate Program, FortisBC income-qualified rebates and the CleanBC Better Homes Energy Savings Program. Eligibility depends on factors such as your utility account, primary heating source, household income and the home itself. FortisBC and BC Hydro both serve communities throughout the Interior, while Penticton and Summerland operate municipal electric utilities that participate in applicable rebate programs.

How eligibility works:

1. Confirm your utility and program eligibility. Your home generally needs to be a year-round primary residence connected to an eligible residential utility account. Requirements vary by rebate program.
2. Check the U-Factor on the label. Eligible windows and doors generally require a U-factor of 1.22 W/m²·K or lower.
3. Replace existing openings. Eligible products must replace existing exterior windows or doors. Each rough opening counts as one unit, including a multi-section bay window. Skylights are excluded.
4. Use a qualified contractor. Standard FortisBC rebates require installation by a licensed BC contractor. CleanBC Energy Savings Program projects must use a Registered Contractor approved for that program. Self-installations are not eligible.
5. Keep the paperwork. FortisBC applications require detailed paid invoices and product information, including the U-factor, model number, certification details and NRCan reference or CPD number. Photos of the installed product labels are also required.
6. Watch the deadlines. Standard FortisBC applications must be submitted within six months of the invoice date and may take up to 90 days to process.

Income-qualified households may be eligible for substantially higher rebates. FortisBC offers an income-qualified window and door rebate for eligible electricity customers, while the CleanBC Better Homes Energy Savings Program offers additional assistance based on household income. CleanBC Energy Savings Program window and door upgrades require approval before installation, so check eligibility before work begins.

Program details current as of September 2026.

Rebate applications can be confusing, so we’re happy to help make the process easier when we can.

“He was very patient and managed it within an hour.”
JaKaLa Lee, Google review, on getting help with a CleanBC rebate application