Zolmar Improvement Ltd
Window & double glazing company registered in Doncaster, South Yorkshire
Registered address
11 FRANK ROAD, Doncaster DN5 9SY
✓ Active on Companies House
Companies House number16823971
IncorporatedOctober 2025
0 years on the register
0 years on the register
Company typePrivate Limited Company
Trade (SIC 43320)Joinery installation (windows, doors & frames)
Accounts on fileNo accounts filed yet · next due July 2027
Also registered for43290 - Other construction installation; 43310 - Plastering
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 Zolmar Improvement Ltd
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.
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Is Zolmar Improvement Ltd FENSA or Certass registered?
This directory does not confirm registration. Window and door installers self-certify their work against Building Regulations through a Competent Person Scheme — mainly FENSA or Certass — so check the company name or postcode (DN5 9SY) directly on the FENSA or Certass website before booking, and ask to see the certificate number.
How do I get a quote from a window installer in Doncaster?
Use the "Get Free Quotes" form on this page. Your job details go to FENSA or Certass registered installers covering the DN postcode area, who contact you directly. Doncaster has 127 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.
Can I see reviews for Zolmar Improvement Ltd?
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.
Does a listing here mean Zolmar Improvement Ltd is recommended?
No. Companies appear in this directory because they are on the Companies House register under a window/joinery installation trade code. A listing is not vetting, endorsement, or a guarantee that the company is trading or FENSA/Certass registered.