“Fantastic experience from initial survey to completion. The team were professional, tidy, and the attention to detail on the finish was fantastic. Couldn't be happier with our new windows.”
Family Business | Est. 2009
Windows & Doors,
Done Properly.
Supply and installation 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
Checkatrade9.95 / 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
9.95/10
5.0
“Responded immediately on a Sunday and had someone around the next day. Excellent service, very fair pricing. Would highly recommend.”
“Good price and hassle free. The doors look brilliant, exactly what we wanted. The fitters were friendly and left everything spotless.”
“Fantastic experience from initial survey to completion. The team were professional, tidy, and the attention to detail on the finish was fantastic. Couldn't be happier with our new windows.”
“Responded immediately on a Sunday and had someone around the next day. Excellent service, very fair pricing. Would highly recommend.”
“Good price and hassle free. The doors look brilliant, exactly what we wanted. The fitters were friendly and left everything spotless.”
Showing verified reviews from Checkatrade and Google
Our Work
