Should You Install Glass Block Windows Yourself or Hire a Professional?
Introduction
If you’ve decided to upgrade to glass block windows, you might be wondering: Should I install them myself or hire a professional? It’s a common question for homeowners who want to save money but also want the job done right.
The truth is, both options have pros and cons. DIY installation can save on labor costs, but professional installation ensures long-term performance and a clean, watertight finish. This guide breaks down what’s really involved in each option so you can make the right choice for your home.
What Glass Block Window Installation Involves
Understanding the Basics
Glass block windows are made of thick, individual blocks sealed together to form a solid, airtight panel. They’re most commonly installed in basements, bathrooms, garages, and other areas that need privacy and light.
Installing these windows requires precise measurements, proper sealing, and attention to detail. Even a small mistake—like uneven rows or improper mortar—can lead to leaks, drafts, or cracks over time.
DIY Glass Block Installation
Before deciding to take on a glass block project yourself, it’s important to know what’s required.
Tools and Materials Needed
You’ll need more than just enthusiasm for this project. Common materials include:
Mortar or adhesive designed for glass blocks
Spacers or alignment guides
Level, trowel, and rubber mallet
Reinforcing wire or anchors
Sealant for finishing edges
Safety gear like gloves and goggles
Having the right tools is critical to achieving a tight seal and smooth finish.
The DIY Process
Installing glass block windows is a bit like building with heavy glass bricks. Here’s what’s typically involved:
Measure and prepare the window opening.
Apply a solid base of mortar or adhesive.
Set the first row of glass blocks and level them carefully.
Add each new row, applying mortar between the blocks.
Insert reinforcement rods or wire as you go.
Allow the mortar to dry completely before sealing and cleaning.
Benefits of DIY
You can save money on labor.
It’s a rewarding project for homeowners with construction experience.
You can control the timing and pace of the job.
Challenges and Risks
DIY installation isn’t ideal for beginners. It requires precision, patience, and familiarity with masonry techniques. Common mistakes include uneven joints, poor alignment, or sealing gaps that later cause leaks. If you make an error, fixing it can be more expensive than hiring a professional from the start.
Professional Glass Block Installation
Hiring a professional may cost more upfront, but it can save time and ensure a better long-term result.
What Professionals Provide
Experienced installers handle the entire process, including:
Measuring and preparing the opening precisely.
Using correct mortar types and techniques.
Ensuring airtight sealing for energy efficiency.
Installing vented or egress-compliant options when needed.
Finishing the job with clean, even joints.
Advantages of Hiring a Pro
Quality and precision: Professionals have specialized tools and years of experience.
Time savings: A typical installation takes a few hours instead of a weekend.
Code compliance: Pros understand local building codes, especially for basements and egress requirements.
Warranty protection: Many installers offer guarantees on both materials and workmanship.
When It’s Worth Hiring a Pro
Consider hiring a professional if:
The window is large or irregularly shaped.
The area is below ground level and prone to moisture.
You need a vented or egress-compliant design.
You want the best possible insulation and finish.
Key Factors to Consider Before Choosing
Before deciding between DIY or professional installation, think about your goals and comfort level.
1. Your Skill Level
If you’ve done masonry or tile work before, a small glass block project might be manageable. If not, hiring a pro is likely the smarter move.
2. The Project’s Complexity
Simple basement windows can be done yourself. Large walls or decorative installations are better handled by professionals.
3. Budget vs. Long-Term Value
DIY saves on labor but risks future repair costs if not done correctly. Professional installation costs more initially but often pays off through longevity and energy savings.
4. Local Conditions
In Central Ohio, where moisture and temperature swings are common, professional installation ensures your glass block windows stay sealed and secure for decades.
Common DIY Mistakes to Avoid
If you decide to install glass block windows yourself, watch out for these common pitfalls:
Using the wrong mortar or adhesive. Always use materials designed specifically for glass blocks.
Uneven spacing between blocks. Even small alignment errors can create visible flaws.
Ignoring moisture barriers. Without proper sealing, water can leak through the joints.
Rushing the curing process. Mortar that doesn’t fully dry can weaken over time.
Taking extra time to measure, level, and seal properly makes all the difference between a professional-looking finish and a costly do-over.
Summary
When it comes to glass block window installation, both DIY and professional approaches can work—but only if done correctly.
Choose DIY if you have the right tools, experience, and patience for detailed work. Choose a professional if you want guaranteed results, faster installation, and long-lasting performance.
For most Central Ohio homeowners, hiring an experienced installer offers peace of mind, superior craftsmanship, and years of worry-free use.
