Frequently Asked Questions | Gravina's Window Center of Littleton®
Your Window Questions, Answered by Local Experts
If you are researching replacement windows in Colorado, you are probably comparing cost, durability, energy efficiency, and which company you can trust inside your home.
At Gravina's Window Center of Littleton®, we have helped Colorado homeowners since 1973. This page answers the questions we hear most often, from pricing and timelines to materials and installation, so you can make a confident, informed decision.
If you prefer to talk it through, you can schedule a free consultation or visit our showroom in Littleton.
Quick Answers About Replacement Windows in Colorado
- Average cost: $2,500 to $3,500 per window with installation, depending on size and configuration
- Best material for Colorado: Fiberglass due to its resistance to expansion and contraction
- Typical project timeline: 12 to 14 weeks from order to installation
- Installation method: W2 employee installers, not subcontractors
Why Choose Gravina's Window Center of Littleton®?
Choosing a window company is not just about the product. It is about who installs it, who stands behind it, and how it holds up in Colorado's climate over the years.
- Serving Colorado since 1973 with three generations of family experience
- W2 employee installers, not subcontractors
- Infinity® by Marvin® fiberglass windows built for Colorado conditions
- In-house service team for long-term support
- Local showroom in Littleton and Denver where you can compare options in person
We are a Colorado-based, family-owned company focused on long-term relationships and doing the job right the first time.
Top Homeowner Concerns, Solved
1. How much do replacement windows cost?
Most replacement windows in Colorado range from $2,500 to $3,500 per window, depending on size, configuration, and installation complexity. Fiberglass windows cost more upfront than vinyl, but they last significantly longer and reduce long-term maintenance and energy costs. (Installed price)
We also offer financing options to make your project more manageable.
2. How do you compare to other window companies?
Many window companies use subcontractors. We do not. Our installers are W2 employees trained to install our products correctly. That means better long-term performance and fewer service calls down the road.
We also provide ongoing in-house service support after installation, which is not something every company offers.
3. What if I am not ready to buy?
No pressure. Most homeowners come to us with questions, not decisions.
Our consultations are built to educate you on what to look for, what tends to fail over time, and what options make the most sense for your home. You can move forward when you are ready.
4. What products are available?
We offer Infinity® by Marvin® fiberglass windows in a wide range of styles, glass packages, and color options, including custom sizes. We also install James Hardie siding and ProVia entry doors.
Our team can help you select products that fit your home's design, your HOA requirements, and your long-term goals.
Quick Answers to Popular Questions
Do you offer financing?
Yes. We offer flexible financing options for qualified homeowners. Ask your consultant about current programs and terms during your appointment.
How long do fiberglass windows last?
Fiberglass windows are built to last decades. They resist warping, cracking, and fading, even with Colorado's extreme temperature swings.
Can you help with HOA approvals?
Yes. We can provide the documentation your HOA requires and walk you through the approval process based on our experience with Colorado communities.
Product and Installation Expertise
Are Infinity windows made from vinyl?
No. Infinity® by Marvin® windows are made from Ultrex® fiberglass, not vinyl. Ultrex is engineered to handle expansion and contraction without losing structural performance over time.
Do fiberglass windows improve energy efficiency?
Yes. Fiberglass windows reduce heat transfer, minimize drafts, and help maintain more consistent indoor temperatures throughout the year.
Can I install the windows myself?
Professional installation is critical to long-term performance. Our trained installers make sure the windows are set correctly, which protects both performance and your warranty coverage.
What is Ultrex® fiberglass?
Ultrex® is a pultruded fiberglass material developed for strength and durability. It is significantly stronger than vinyl and built to perform in demanding climates like Colorado's.
Do you offer brochures?
Yes. You can download our product brochure here.
Other Common Questions
Do you offer senior or military discounts?
Yes. Let your consultant know during your appointment and we will go over the options available to you.
What if I need service after installation?
We have an in-house service team to support our customers after installation. You can review our warranty information here.
Are you affiliated with the company on Evans?
No. Gravina's Window Center of Littleton® is a separate, independently owned family business established in 1973.
We are not affiliated with other companies using the Gravina name. We specialize in Infinity® by Marvin® fiberglass window replacement and serve homeowners throughout the Denver metro area.
Ready to Get Started?
Start by visiting our Littleton showroom or schedule your free consultation today.
Last updated: April 2026