Welcome to Mike Whitfield Construction

This is a small business with many years experience of energy efficient construction. The director, Mike Whitfield, works on site with site operatives who are both male and female, cover a wide age range, and are all sympathetic with environment conscious and conservation building. Our ideal projects allow us to combine the soul quality and artistic freedom of traditional craftsmanship with the thermal performance of an energy efficient modern building. We have specialised in Passive House Construction since 2010.

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Mike Whitfield

Mike is a carpenter with over 35 year’s experience of building and contracts management who first worked on a carefully designed energy efficient building in 1996, and since then has been on a steadily improving journey

“I first worked on an ‘Eco- build’ Project in 1989. I was re-introduced to air-tightness detailing and high levels of insulation when building a lecture hall at the Greenwood Trust in Shropshire in 1996, having first come across it in 1980 while working in Canada. Since 1996 I have been developing my own building methods to support these goals- alternating stud frames, minimising cold bridging with I beams, airtight window installations.

I have always regarded energy efficient building as an evolving process, and I have specialised in developing and improving our detailing with every job”.

Our approach

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We have specialised in energy efficient building for about 18yrs and in 2010 we decided to specialise in Passivhaus building. Since then almost all our work (17 projects approx £2.6m ) has been Passivhaus.


7 Newbuild Passivhaus (including our current projects)

4 Passivhaus detailed whole house retrofits

6 Passivhaus detailed extensions



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Carpenters & approved sub-contractors

Our Carpenters have all been trained in Passivhaus building and are supported on site by Director/Manager Mike Whitfield. Mike has done the 2 day PHPP (Passivhaus Planning Package) course, and has been an invited speaker at AECB conferences, UK Passivhaus Conference, and Ecobuild on various aspects of Passivhaus construction methods.

The 7 main employees have approx. 26 yrs Passivhaus and Passivhaus detailed construction between them.

Groundworkers…have worked on 5 newbuild PH’s and 4 PH detailed extensions

Electricians…have worked on 4 newbuild PH’s, 4 PH detailed extensions, 2 retrofits

Plumbers…have worked on 4 newbuild PH’s, 6 PH detailed extensions, 2 retrofits

Plasterers….have worked on 2 newbuild PH’s, 4 PH detailed extensions, 2 retrofits

Tilers…have worked on 2 newbuild PH’s, 5 PH detailed extensions, 2 retrofits

Decorators…have worked on 3 newbuild PH’s, 3 PH detailed extensions, 2 retrofits

Membership of Professional Bodies

UK Passivhaus Trust

The Passivhaus Trust is an independent, non-profit organisation that provides leadership in the UK for the adoption of the Passivhaus standard and methodology. Passivhaus is the leading international low energy, design standard. Over 65,000 buildings have been designed, built and tested to this standard worldwide.

The Trust aims to promote the principles of Passivhaus as a highly effective way of reducing energy use and carbon emissions from buildings in the UK, as well as providing high standards of comfort and building health.

Carpenters Fellowship

The Carpenters Fellowship is a database of some of the best timber framers around.
Although we’re not yet in a position to offer accreditation to our members, it’s something we are working towards. In the meantime, we are confident that our members include some of the leading timber frame companies, experienced individual framers, architects, engineers and designers.

Association for Environment Conscious Building

The AECB is a network of individuals and companies with a common aim of promoting sustainable building.
It brings together builders, architects, designers, manufacturers, students, educators, housing associations and local authorities, to develop, share and promote best practice in environmentally sustainable building. We pride ourselves on our independence, relevance and practicality