Chartwell House
Project details for Chartwell House.

Jamb Construction Building Services Ltd · Company 14656200
Active, accounts up to date·main contractor·Head office Cheltenham
Jamb Construction is a Cheltenham-based building contractor formed through the collaboration of On Site Building Expertise & Architecture. We offer a comprehensive range of services for homes and businesses, serving Cheltenham, Gloucestershire, and the Cotswolds. Our expertise covers new builds, bespoke homes, extensions, loft conversions, remodelling, refurbishment, and works to listed buildings.
We also undertake commercial projects, remedial works, repairs, and create home offices and garden structures, alongside hard landscaping and external works. In partnership with our sister company, Stanley Partnership, an award-winning architectural practice, we provide a complete design and construct solution. This integrated approach allows us to manage projects from initial design proposals through detailed planning applications, including those for listed buildings, and comprehensive project management.
We handle all necessary statutory processes, technical drawings, specifications, and building control requirements, ensuring a seamless delivery from concept to completion.
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Cheltenham-based building contractors specialising in extensions, new builds, loft conversions and listed building work. Get in touch for a free consultation. Their listed services include Extensions, House builder, Loft conversions, Restoration & heritage and Refurbishment.
Jamb Construction is registered at 105-107 Bath Road, Cheltenham, GL53 7LE, in South West.
Jamb Construction states that it works across Cheltenham, Gloucestershire and Cotswolds.
Accounts filed for the year to 2025 report 2 employees, which places the company in the 1-9 employees band.
Jamb Construction does not disclose turnover: UK small-company accounts are not required to. Based on headcount and trade debtors in its filed accounts, turnover is likely to fall between £110k and £290k. This is an estimate, not a filed figure.
Companies House lists Jamb Construction as active, with accounts most recently made up to 2025-03-31.
Jamb Construction displays FSB, LABC and CITB on its website.
Jamb Construction works in Residential and Commercial.
Jamb Construction was incorporated on 2023-02-11.
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