
Warming Up a Cold Edwardian Home
North Oxford
A whole-house retrofit in North Oxford: internal wall insulation, floor insulation and ventilation delivered as part of a Cosy Homes Oxfordshire Whole House Plan.

Lambert Design And Build Ltd · Company 10906208 · Trading heritage since 2001
Active, accounts up to date·main contractor & developer & consultant·Head office Oxford
Lambert Home Builds is an independent, family-run company based in Oxfordshire with over 25 years of experience in the construction industry, focusing on sustainable construction and a net-zero carbon future. The company specializes in retrofit work and heritage renovation, utilizing natural fibre materials and a fabric-first approach. They are committed to delivering excellence with a personal touch, managing each project with a particular focus on Whole House Retrofits.
Led by husband and wife team Ross and Nikki Lambert, the company has evolved towards a more sustainable approach, emphasizing retrofit for heritage dwellings with natural fibre insulation and lime plaster techniques. They offer whole house retrofits with a fabric-first approach, managing complexities to ensure quality outcomes. Their ethos is to deliver exceptional high-quality work through in-house training, collaboration, and meticulous attention to detail, with Ross overseeing every project from inception to completion.
Lambert Home Builds distinguishes itself by employing its own team directly, ensuring consistency and accountability across all trades, from insulation to plastering and carpentry. This integrated approach minimizes gaps and ensures lessons learned are carried forward, resulting in fewer errors and a higher quality finish for clients. They are members of the Federation of Master Builders and TrustMark approved, underscoring their commitment to quality and service.

North Oxford
A whole-house retrofit in North Oxford: internal wall insulation, floor insulation and ventilation delivered as part of a Cosy Homes Oxfordshire Whole House Plan.

A phased whole-house retrofit and rear extension: external wall insulation, decentralised MVHR, an air-to-air heat pump, and solar PV with battery storage.

Cotswolds
A whole-house retrofit of a Grade II listed home in the Cotswolds: roof rebuild with traditional timber repairs, breathable insulation, new windows and doors, solar PV and battery storage, and infrared heating.

Oxford
A whole-house retrofit in Oxford: external wall insulation, new energy-efficient windows, extra loft insulation and gentle background ventilation, wrapping a 1909 family home in one continuous layer of warmth.

Sample of work from Projects Gallery.

Sample of work from Projects Gallery.

Sample of work from Projects Gallery.

Sample of work from Projects Gallery.

Sample of work from Projects Gallery.

Sample of work from Projects Gallery.

Sample of work from Projects Gallery.

Sample of work from Projects Gallery.
This profile was compiled from public records. Claim it to add the things buyers ask for:
Oxfordshire's retrofit specialists with an in-house Passivhaus-certified team and full airtightness-trained trades under one roof. Book a consultation. Their listed services include Refurbishment, Restoration & heritage, Extensions, Timber frame and Insulation.
Lambert Home Builds is registered at 47 Robsart Place, Cumnor, Oxford, OX2 9QT, in South East.
Lambert Home Builds states that it works across Oxfordshire.
Accounts filed for the year to 2025 report 4 employees, which places the company in the 1-9 employees band.
Companies House lists Lambert Home Builds as active, with accounts most recently made up to 2025-03-31.
Lambert Home Builds displays FMB, TrustMark, Passivhaus, FENSA, Baumit and EWI Pro on its website.
Lambert Home Builds works in Residential.
Lambert Home Builds was incorporated on 2017-08-09, though the company says it has traded since 2001.
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