About from company website
Founded in the summer of 2023 by Justin Macklin, Checkmark was born from a passion for heat pumps and a belief in the capability of DIY enthusiasts. The company aims to lower energy usage, reduce bills, and cut CO2 emissions by supporting individuals in safely and legally installing their own heat pumps and air conditioners. Justin, being Category 1 F-gas qualified, leads the service, ensuring all regulated F-gas work is handled professionally.
Checkmark offers a unique 'have cake and eat it' solution for DIYers. By allowing competent individuals to handle the majority of the installation preparation, Checkmark's qualified F-gas engineer then connects, tests, commissions, and certifies the system. This approach is designed to be transparent, fixed-cost, and significantly more affordable than traditional installations, thereby encouraging the adoption of more sustainable heating solutions.
Based in Bromley, Kent, Checkmark primarily serves London and the South East, though inquiries from outside this area are welcome. The company is a registered F-gas company and its staff hold enhanced DBS certifications. The website serves not only to promote Checkmark's services but also as a valuable resource for anyone planning a DIY installation, offering comprehensive information and guidance.
Services
Works as
Sectors
Accreditations from company website
- Category 1 F-gas qualified
- registered F-gas company
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Questions about Checkmark Ltd from the record on this page
What does Checkmark Ltd do?
Checkmark provides a connecting, testing, commissioning and certifying service for DIY heat pump/air conditioner installs, saving costs while ensuring safety and legality. Their listed services include Heating & ventilation, Air conditioning and M&E contracting.
Where is Checkmark Ltd based?
Checkmark Ltd is registered at Suite A 82 James Carter Road, Mildenhall, Bury St. Edmunds, IP28 7DE, in East of England.
What areas does Checkmark Ltd cover?
Checkmark Ltd states that it works across London and South East.
What is Checkmark Ltd's turnover?
Checkmark Ltd does not disclose turnover: UK small-company accounts are not required to. Based on current assets in its filed accounts, turnover is likely to fall between £12k and £47k. This is an estimate, not a filed figure.
Is Checkmark Ltd still trading?
Companies House lists Checkmark Ltd as active, with accounts most recently made up to 2025-08-31.
What accreditations does Checkmark Ltd hold?
Checkmark Ltd displays Category 1 F-gas qualified and registered F-gas company on its website.
What sectors does Checkmark Ltd work in?
Checkmark Ltd works in Residential and Commercial.
When was Checkmark Ltd established?
Checkmark Ltd was incorporated on 2023-08-10.