Avoid Cowboy Window Installers: Newcastle Homeowner Checklist

Thinking of replacing your windows? Don’t get caught out.

We’ve seen it time and time again across Newcastle — homeowners lured in by cheap quotes, only to be left with draughty windows, poor workmanship, and no way to contact the installer once problems arise.

At Windows and Doors Newcastle, we’ve helped many customers fix the damage left behind by cowboy window fitters. It’s frustrating. It’s costly. And worst of all, it’s avoidable.

Use this checklist to spot red flags early, choose a trustworthy installer, and protect your home and your money.

Why You Need to Be Careful

Window installations aren’t just cosmetic — they impact:

• Your energy bills
• Your home’s security
• Structural safety and resale value

If windows aren’t installed to UK building regulations, you could face legal issues or unexpected repair costs down the line.

And once the cowboy has your deposit? They often disappear.

Cowboy Installer Red Flags to Watch For

Here are the top warning signs of a rogue window fitter:

1. No Physical Address or Local Presence

If a business won’t give you a fixed address, it’s a major red flag. You want a company that’s based in or around Newcastle — not someone travelling up for a quick job and disappearing.

2. Cash-Only Payments or Pressure for Upfront Deposits

Legitimate companies offer secure payment options and staged payments. Cowboys often demand large cash deposits up front, with no receipts or paperwork.

3. No FENSA or CERTASS Accreditation

All window installers in the UK must be able to self-certify or go through building control. If they’re not FENSA-registered, ask why.

At Windows and Doors Newcastle, we’re fully FENSA accredited — giving you proof that the work meets UK building regs.

4. No Written Quote or Contract

Avoid anyone who says “We’ll sort it out later” or gives a vague verbal quote. You should always receive a detailed written quote, including:

• Type and quantity of windows
• Materials and spec
• Timeframe
• Payment terms
• Guarantees

5. Can’t Provide References or Photos of Previous Work

Any reputable company will have a portfolio of completed jobs, customer reviews, or local references you can check. If they can’t show you anything, steer clear.

6. Rushed Timeframes or “Too Good to Be True” Prices

Cowboys often undercut the market just to win jobs — and then cut corners to make a profit. If a quote is suspiciously low, ask what’s being left out.

What to Look For in a Trusted Installer

Use this checklist before you sign anything:

✅ Are they based in the North East and easy to contact?

You want someone local who understands Newcastle homes, weather conditions, and property styles.

✅ Are they FENSA or CERTASS registered?

This means your installation is legal, certified, and compliant with building regulations.

✅ Do they offer a clear written quote?

This should break down all costs and include full specifications.

✅ Can they show examples of similar jobs?

Photos, reviews, and case studies help you see the quality of their work and what to expect.

✅ Do they offer a guarantee or aftercare?

You should be covered in case anything goes wrong. Windows and Doors Newcastle offers product warranties and responsive local aftercare.

✅ Are the installers qualified and employed (not just subcontracted)?

Ask who will be doing the actual fitting. Some companies sell the job and send unknown third parties to complete it.

What Can Go Wrong with Cowboy Installers?

Unfortunately, we’ve seen a lot. Common issues include:

• Draughty frames that were never sealed properly
• Condensation between panes due to poor glazing
• Crooked or misaligned windows
• Water leaks and internal damp
• No documentation or compliance certificates

In some cases, it costs more to fix than to do it right the first time.

What to Do If You’ve Been Caught Out

If you’ve already hired someone and now suspect poor workmanship:

1. Stop further payments immediately
2. Take photos of the work and any damage
3. Check for FENSA or CERTASS paperwork
4. Contact Citizens Advice or Trading Standards
5. Get a professional inspection from a trusted company like Windows and Doors Newcastle

We offer free site visits to assess poor installations and recommend the most cost-effective fix.

Why Choose Windows and Doors Newcastle?

We’re proud to be one of the North East’s trusted names in window and door installation. When you work with us, you get:

• A FENSA-registered local team
• Transparent pricing with no hidden costs
• Expert advice on products and compliance
• Clean, professional installations with proper sealing
• A commitment to aftercare and customer service

We’ve built our reputation by fixing what others get wrong — and making sure you never need to worry about your windows again.

Final Thoughts: Don’t Risk It

Choosing the right installer is just as important as choosing the right windows.

If a quote seems too good to be true, or something feels off, trust your instincts. Use this checklist, ask the right questions, and always work with professionals who stand behind their work.

For honest advice and a free quote, get in touch with Windows and Doors Newcastle — your reliable, local experts.