Hire a Double Glazing Company: 7 Questions to Ask First
Before you hire a double glazing company, it pays to ask the right questions. New windows are a big investment. A good fitter gives you comfort and peace of mind for years. A poor one leaves you with draughts and headaches. These seven questions help you tell the difference.

1. Are you FENSA registered?
FENSA registration shows an installer is checked against building regulations. When the work is done, they register it and you receive a certificate. You will need that certificate when you sell your home. You can check any installer on the FENSA website. If a company cannot show registration, think twice.
2. Can I see reviews and recent local jobs?
Good companies are happy to show their work. Ask for recent jobs near you. Also read independent reviews on sites such as Checkatrade. However, do not rely on stars alone. Read what customers say about timekeeping, tidiness and after-sales care.
3. Is the quote in writing and itemised?
A clear quote lists the windows, sizes, frame colour, glass type and fitting costs. It should also say what happens to your old windows. As a result, you can compare companies fairly. Be wary of vague quotes with one big figure.
4. What guarantee do you offer?
Ask how long the frames, glass and hardware are guaranteed. Then ask who honours the guarantee. For example, check that it still stands if the company changes hands. Get the details in writing.
5. Who will fit my windows?
Some companies use their own fitters. Others use subcontractors. Neither is automatically bad. However, you should know who will turn up. Ask how experienced the fitters are and whether the company stands behind their work.
6. What are the windows made from?
Ask about the frame, the glass and the security features. Low-E glass helps keep heat in. Good locks and hinges keep intruders out. In addition, ask for the energy rating so you can compare like with like.
7. What happens on the day, and how do I pay?
A good company tells you the start date, how long the job takes and how they protect your home. They also explain payment terms clearly. Be cautious of big upfront payments. Instead, look for fair stage payments or payment on completion.
Red flags when you hire a double glazing company
Walk away if you spot any of these warning signs:
- Pressure to sign today for a special price
- No fixed address or local phone number
- Quotes that are very vague
- Reluctance to show FENSA registration or recent work
If you sign a contract at home, you normally get a 14-day cooling-off period. You can read more on the Citizens Advice website. Use these questions every time you hire a double glazing company.
Why homeowners choose Faron
Faron Home Improvements is a family-run, FENSA-registered company at 61-63 Railway Approach, East Grinstead. You can find us on Checkatrade, and we offer free design and quotations. We cover East Grinstead, Crawley, Horsham and nearby villages. Read why homeowners rate our double glazing company in East Grinstead, or contact us for a free quote on 01342 643075.




