Key Questions to Ask Your Window Fitter

Clear Decisions: Key Questions to Ask Your Window Fitter Before You Hire

Investing in new windows and doors is a significant decision that impacts your home’s security, energy efficiency, and overall aesthetics. To ensure a smooth, high-quality installation, it’s crucial to approach the hiring process with diligence. Knowing the key questions to ask your window fitter can be the difference between a successful upgrade and a costly headache.

At Clear Fast Glass, we believe in transparency and empowering homeowners. Drawing on our over 20 years of expertise, we’ve compiled the definitive list of questions you must ask any prospective installer.


1. Expertise, Licensing, and Reliability: Protecting Your Investment

Before any contract is signed, you need solid assurance that the company is qualified, legitimate, and experienced, particularly with the specific products you want.

  • “How long has your company been in business, and what experience do you have with the type of windows I want (e.g., uPVC, Aluminium, Double/Triple Glazing)?”
    • Why it matters: This directly verifies their expertise. A company with a long, consistent history and relevant product experience, like the 22+ years of combined experience at Clear Fast Glass, is a strong indicator of reliability and quality workmanship.
  • “Are you fully licensed and insured? Can I see proof?”
    • Why it matters: This is non-negotiable. Requesting proof of Public Liability and Employers’ Liability insurance protects you legally and financially should any accidents or damage occur during the installation process.
  • “Can you provide recent references or a portfolio of similar work you’ve completed?”
    • Why it matters: Positive, verifiable feedback and a visual portfolio help confirm the quality and consistency of their work, giving you confidence in their commitment to excellence.

2. The Product and the Installation Process: Getting the Details Right

Understanding the product performance and the installer’s methods is essential for setting expectations regarding energy efficiency, security, and disruption.

  • “What specific security and energy-efficiency features do your windows offer?”
    • Why it matters: This directly influences your home’s performance and safety. Look for high-grade multi-point locking systems and energy ratings (like U-values) that meet or exceed current standards. We specialise in high-performance double and triple-glazed uPVC and aluminium products designed to enhance your home’s security and thermal performance.
  • “Will you be using your own employed team, or will subcontractors carry out the installation?”
    • Why it matters: Knowing who is doing the work is vital for quality control. Employed teams, like the one at Clear Fast Glass, often provide a more consistent standard of workmanship and better accountability.
  • “How long will the installation take, and what level of disruption should I expect each day?”
    • Why it matters: This helps you plan. An experienced fitter should be able to provide a realistic timeline and explain the steps they take to minimise disruption to your daily life.
  • “What happens to the old windows and waste materials?”
    • Why it matters: Responsible waste management is key. Support companies that recycle old materials and can provide evidence of a valid Waste Disposal Licence, ensuring ethical and legal disposal.

3. Cost and Coverage: No Hidden Surprises

Clarity on pricing and what happens after the installation is crucial for protecting your financial investment. One of the most important key questions to ask your window fitter relates to warranties.

  • “Can you detail the total cost, provide a written breakdown, and is this quotation fixed?”
    • Why it matters: Insist on a comprehensive, written quotation that details all costs, including the removal of old frames and clean-up. This avoids vague estimates and prevents surprise fees at the end of the project. Be wary of companies that use pushy sales consultants, as their commission payments often lead to inflated pricing. At Clear Fast Glass, we offer a hassle-free quotation service focused on value for money.
  • “What is included in your warranty—both for the windows/doors and the installation workmanship—and how long does it last?”
    • Why it matters: A strong, comprehensive warranty protects your investment against product faults and installation errors for years to come. Make sure you understand the terms for both the product (like the glass and frames) and the fitting itself.

Make the Right Choice with Confidence

Asking these key questions to ask your window fitter ensures you hire a company that is experienced, reliable, and committed to a high standard of work. Whether you are seeking new uPVC windows, stylish aluminium bi-folds, or a secure composite door, the right questions lead to the right result.

At Clear Fast Glass, your trusted windows and doors family-run business in Kent, we are dedicated to providing industry-leading home improvements. We are more than happy to answer all of these questions and more. Don’t hesitate to drop us a message on WhatsApp or contact us via our website for a transparent, no-obligation quotation. We look forward to helping you make your house a home!