You've almost certainly seen the adverts. The smiling family, the impossibly pristine home, the bold "buy one get one free" headline, and then the small print about survey fees, installation charges, and finance rates. The big national window companies have built their businesses on high-volume, high-pressure sales. That's not necessarily what you want when someone is cutting holes in your home.
Here's an honest look at why so many Essex homeowners who've used national companies once choose a local installer the second time around.
1. You Know Who You're Dealing With
When you call CII Double Glazing, you speak directly with Ross and the team responsible for your installation. By the time work starts, you already know who is accountable for the job.
With a national company, you're dealing with a sales representative, then a surveyor, then an installation subcontractor, often from a different company entirely. The person who sells you the windows may have no meaningful connection to the people who fit them.
This matters because accountability is personal. When the same people who quote a job also fit it, and their name is on the review that follows, they have a direct stake in getting it right.
2. No Subcontractors
This is perhaps the biggest structural difference between local and national window companies. Most national operators don't employ their own installation teams. They use a network of freelance or subcontracted fitters, often on a job-by-job basis.
That means quality can vary significantly from one team to the next. The person fitting your windows on a Monday is likely different from the one who fitted your neighbour's on Friday.
CII Double Glazing has never used a subcontractor. Every member of our installation team is directly employed by us. We know their work, we're responsible for their training, and we stand behind every installation they do.
3. Realistic, Honest Pricing
National companies spend enormous amounts on advertising. Those TV slots don't come cheap. That spending has to be recovered somewhere, and it typically comes from margin built into the pricing. The "50% off" and "buy one get one" offers are structured to make a certain margin regardless of the headline discount.
Local companies don't have those advertising overheads. Our business is built on reputation and word of mouth, which means our incentive is to give you a fair price and do an excellent job so you tell your neighbours.
4. Better Product Knowledge
A local installer who has worked in your area for 15 years knows:
- Which products perform well in the local climate
- What planning authorities in your area typically require
- Which manufacturers offer genuinely good quality vs. which ones cut corners
- What the going rates are for your area
This knowledge is genuinely valuable when you're spending several thousand pounds. It's the kind of informed advice that's hard to get from a national sales team working off a script.
5. Post-Installation Support
Problems with windows are relatively rare, but when they occur, such as a failed seal, a stiff mechanism, or a misaligned door, you want the process of getting it resolved to be straightforward.
With a national company, you're often entering a customer service queue. You might get a callback within 5 working days, then wait weeks for a repair appointment. With a local company, you call the same number you called at the beginning and speak to the same person.
At CII Double Glazing, warranty issues are handled by our own team. We don't outsource repairs to a third party, and we don't make it difficult to get help when you need it.
When a National Company Might Be the Right Choice
To be fair, national companies do have some advantages. They typically offer longer written guarantees backed by insurance (though local installers can and should also provide insurance-backed guarantees). They may also have wider product ranges or the ability to handle very large-scale projects.
But for most homeowners replacing windows or doors in an Essex family home, the advantages of a national brand are largely perceptual rather than practical.
The Simple Question to Ask
When you're comparing quotes, ask every company one question: "Who will be fitting my windows, your employed team or subcontractors?"
The answer will tell you a great deal.
Contact CII Double Glazing for a free survey and honest, no-pressure quote. We've been serving Essex homeowners directly since 2009.