Core Installations Limited
Window & double glazing company registered in Durham, County Durham
Registered address
ELYSIUM, OAKENSHAW, Durham DL15 0SX
✓ Active on Companies House
Companies House number14410446
IncorporatedOctober 2022
3 years on the register
3 years on the register
Company typePrivate Limited Company
Trade (SIC 43320)Joinery installation (windows, doors & frames)
Accounts on fileDormant accounts (no significant transactions that year) · last filed October 2025 · next due July 2027
Listed from the public Companies House register, not an endorsement. Quote requests go to FENSA or Certass registered installers covering your postcode, not necessarily this company. Accounts filing category reflects company size under Companies House rules, not service quality. Map location is approximate, based on the registered postcode.
Before you book Core Installations Limited
This page confirms the company is on the Companies House register. It does not confirm FENSA or Certass registration, insurance, or trading status. Check those yourself first.
How to vet a window installer before you hire →Need a window installer in Durham?
Free, no-obligation quotes from FENSA or Certass registered installers near you.
Get Free Quotes →Window help for Durham
How do I get a quote from a window installer in Durham?
Use the "Get Free Quotes" form on this page. Your job details go to FENSA or Certass registered installers covering the DL postcode area, who contact you directly. Durham has 39 registered window and glazing businesses in this directory, though the installers who quote are not necessarily among them. It is free and there is no obligation.
Do uPVC windows need any maintenance?
Not much, but not none. Wipe the frames a few times a year, lubricate hinges and locks annually, and keep the drainage channels along the bottom of the frame clear so water can't pool and find its way inside. There is no statutory annual service like a boiler needs.
Can I see reviews for Core Installations Limited?
Not here. This is a register-based directory, not a review site. Look at independent review platforms, ask the installer for recent local references, and confirm FENSA or Certass registration before any work starts.
What is a FENSA or Certass certificate and why does it matter?
It's proof the window or door installation meets Building Regulations (thermal performance, safety glazing, ventilation) without a separate council building control sign-off. Without one, selling the property can mean paying for retrospective building control inspection or indemnity insurance, so keep the certificate with your house documents.
How many window and glazing companies are there in County Durham?
This directory holds 406 active window and glazing businesses across 47 towns in County Durham, all from the Companies House register. Durham accounts for 39, among the county's busiest. About 42% of County Durham's registered window and glazing firms were incorporated in the last three years, so weigh incorporation date and FENSA/Certass registration, not just company age.