“Great guys who did a great job for what I needed.”
Double Glazing in Essex. Windows, Doors and Roof Lanterns Fitted by Cii Double Glazing.
Family Business | Est. 2009
Windows & Doors,
Done Properly.
Double glazing, windows and doors supplied and fitted across Essex, Hertfordshire and London. Directly-employed fitters. No subcontractors. Ever.
No subcontractorsFree surveyFinance availableAssure certified
What We Install
Windows, Doors & Roof Lanterns
10YEARGUARANTEE
10-Year GuaranteeProfiles & hardware
Assure CertifiedAll qualifying installations
Family BusinessEst. 2009
Checkatrade9.78 / 10
No SubcontractorsEver
Finance AvailableSubject to status
16+
Years serving Essex
Why Cii Double Glazing
The Honest Choice for Essex Homeowners
We're not a national franchise. We're a family business that started in 2009 and built our reputation on doing things properly, quality products, skilled installers, and no shortcuts.
Family run for over 16 years
Ross and the team handle every job personally, you deal with the directors, not a call centre.
No subcontractors, ever
Every installer works directly for Cii Double Glazing. We never use third-party labour, guaranteed.
Finance available
Spread the cost with our approved finance partners. Subject to status.
Trusted across Essex
Checkatrade verified with hundreds of 5-star reviews. Our reputation is our business.
Repairs & Trade
More From Cii
Repair work across all brands, and direct trade supply across Essex. All in-house, all directly employed.
Repairs
Fix It Before You Replace It
Misted glass, broken handles, failed locks, worn hinges. We repair windows and doors across all brands. Survey visit first, no same-day callouts.
- Misted glass, failed seals, cracked panes
- Handles, locks, hinges and mechanisms
- All frame types: UPVC, aluminium, timber
- Survey visit first. No emergency callouts.
Trade Professionals
Built for the Trade
Direct contact with Ross. No account managers, no delays. Reliable supply and installation for builders, contractors and developers across Essex.
- No minimum orders, order what you need
- Trade pricing on all product lines
- Direct contact with Ross
- Fast supply across Essex and surrounding area
What Our Customers Say
Trusted by Essex Homeowners
Checkatrade
9.78/10
5.0
“Job carried out on time and very professionally.”
“Knowledgeable and honest advice on old draughty double glazing, followed by a quick, skilful repair at a reasonable price.”
“Measured, made, and installed 19 misted glass units in a week. Friendly, clean fitters and very reasonable pricing.”
“Fair price agreed, then the balcony French doors were adjusted and fixed with efficient, thorough workmanship.”
“Second time using CII for different properties. Easy process, good pricing, and the work was completed exactly as promised.”
“Great guys who did a great job for what I needed.”
“Job carried out on time and very professionally.”
“Knowledgeable and honest advice on old draughty double glazing, followed by a quick, skilful repair at a reasonable price.”
“Measured, made, and installed 19 misted glass units in a week. Friendly, clean fitters and very reasonable pricing.”
“Fair price agreed, then the balcony French doors were adjusted and fixed with efficient, thorough workmanship.”
“Second time using CII for different properties. Easy process, good pricing, and the work was completed exactly as promised.”
Showing recent reviews from Checkatrade, Google and Trustpilot
Our Work
