Carl Goodhew

Founder, G2 Construction and Consultancy Ltd

Carl Goodhew is a specialist builder and consultant dedicated to the delivery of Passivhaus New Builds, EnerPHit, and low-energy retrofit solutions. With a career spanning every level of the construction hierarchy, Carl brings a unique "boots-on-the-ground" perspective to the sustainability conversation, ensuring that high-performance design is matched by rigorous on-site execution.

Professional Journey & Experience

Unlike many sustainability consultants, Carl’s expertise is rooted in a comprehensive practical background. His career has evolved through every critical stage of the building process:

Tradesman Roots: Began his career as a carpenter apprentice, progressing to a fully qualified carpenter. This foundation provides an intimate understanding of the physical "fabric-first" challenges required for airtightness and thermal bridging.
Site Management: Served as a foreman and site manager, overseeing the day-to-day execution of complex designs and managing diverse trades to maintain stringent quality standards.
Project Leadership: Transitioned into project management, balancing high-performance technical requirements with the logistical and budgetary constraints of high-end residential schemes.
Founder: Established G2 Construction and Consultancy Ltd, a boutique firm specialising in high-quality new builds, extensions, and deep energy retrofits for affluent homeowners and architects.
 
Technical Delivery & Execution

Carl is uniquely positioned at the intersection of architectural theory and physical assembly. He is known for his ability to deconstruct complex thermal strategies into sequenced, actionable site practices, ensuring that the high-performance requirements of a Passivhaus or deep retrofit are never lost in translation during the build. By applying a deep understanding of the construction process—from the initial structural framing to the final airtightness seal—he manages the delivery of complex, high-specification projects with a focus on precision and buildability. His background allows him to anticipate the friction points between traditional building methods and modern sustainable standards, making him a vital link between the architect’s technical vision and the practical reality of a finished, high-performance home.

Core Specialisms

Passivhaus New Build Delivery: Expert in the end-to-end execution of certified Passivhaus homes. Carl focuses on the critical integration of specialist systems—such as MVHR and high-performance glazing—ensuring the "as-built" performance matches the design model through meticulous attention to detail.
Heritage & Deep Retrofit (EnerPHit): Specialist in applying modern building science to traditional English housing stock. He demonstrates how heritage properties can meet 21st-century energy standards through internal and external wall insulation strategies and moisture-managed construction.
The Fabric-First Approach: A staunch advocate for prioritising the building envelope—insulation, glazing, and airtightness—over mechanical "bolt-on" technologies to achieve permanent, passive energy reductions.
Boutique Delivery: Focuses on the intersection of sustainability and high-end aesthetics, ensuring that low-energy homes meet the exacting standards of the luxury residential market.

Industry Standing

A Member of the Chartered Institute of Building (MCIOB), Carl is a vocal proponent of the Passivhaus standard. He is a frequent contributor to the sustainability dialogue, helping to bridge the gap between design intent and high-quality, durable construction.