Advice for
homeowners

Meet your
FENSA Advisor

This is Harry.

You might recognise him from our TV ad.

Harry works for a FENSA Approved installation company. He's on a mission to help professionalise installers and protect homeowners across the UK, so he started this advice column

Harry's advice

  • What to check before appointing an installer

    Apr 5, 2019, 09:19 AM by Chesney Bax
    Before you appoint an installer to replace your windows and doors, ask them: “Will I get a FENSA certificate when the job’s done?” Why? Because their answer to that one, simple question will tell you immediately whether they are right for you.
    Full story
  • Why you should always ask for a FENSA certificate

    Apr 5, 2019, 09:18 AM by Chesney Bax
    A FENSA certificate isn’t just a nice-to-have, it’s a need-to-have. Because the certification means you’re working with a professional company that will meet two legal requirements and provide you with an important level of protection. Most people haven’t the time, knowledge or inclination to check these three things themselves. So, what are they?
    Full story
  • Why you should always use a FENSA Approved Installer

    Apr 5, 2019, 09:17 AM by Chesney Bax
    There are many good installers out there who’ll do a good job of fitting your replacement windows and doors. The crucial question is, “Are they good enough?” How can you be certain? Ask a friend for a recommendation? Check a Google review? Or just look at their past work? There’s only one way to be sure: find out if they’re a FENSA Approved Installer.
    Full story

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What to check before appointing an installer

Check that you use a FENSA Approved Installer but also check the following:


  • Ask family and friends who have used installers about their satisfaction and whether they got a FENSA certificate.
  • Check the installer's references by talking to their previous customers.
  • Get at least three quotes and check you are being quoted like for like.
  • Cheapest is not always best and good contractors are always in demand.
  • Check the warranty on the installer's work and ensure they have enough insurance to cover their warranty. Domestic glazing installers that are registered with a competent person scheme like FENSA are legally obliged to provide warranty insurance to cover your installation should the company cease to trade within the life of the warranty.
  • Get quotes, timeframes and the fact that you will get a FENSA certificate all in writing. A proper written contract with an agreed completion date will help prevent confusion later on
  • If the company requires a deposit, ensure they offer deposit indemnity and get proof or a receipt for any deposits paid. The deposit should not exceed the indemnity value of the installer's deposit protection insurance. Some less reputable companies may ask for cash upfront to secure a 'one time only offer' or 'special deal'. You're very unlikely to get your money back if there is a problem later unless you take out a deposit protection. If you do pay for goods upfront costing more than £100, use a credit card so you can claim against the credit card company if anything goes wrong.
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