Terra Firma

Terra Firma Building Contractors LLP - London

020 8360 3011


Terra Firma

About us

About us

We’re a family owned building company with some 30 years experience serving the North, West and East London areas. With brothers Michael and David Nevin at the helm, we’re a small and friendly family business backed up by specialist professionals working with us as and when required.

We feel we provide the friendliness of dealing with a small family run business backed by the highest of professional standards. Our customers certainly agree - we enjoy a fine reputation throughout the London areas we cover with most new customers coming to us through word of mouth.


What we do

We provide the full range of construction and renovation services for domestic and commercial customers. These include specialist church building works such as renovations and reconfigurations.

You’ll find us easy to deal with - we’ll discuss and plan your project fully, and Michael or David are always personally on hand to supervise and help undertake the work. We’ll work efficiently to minimise disruption and ensure your building project is completed to the agreed deadline and budget.


Why us

With 30 years experience, an excellent reputation proven by many customers coming to us through word of mouth, you can rest assured you’re in the hands of seasoned professionals. We pride ourselves in providing the best in customer service, so we’ll agree and meet realistic deadlines and keep you informed of progress at all times.

You’ll find our professional team courteous and punctual while working in and around your home or business premises. We always strive to work swiftly and efficiently so as to minimise your disruption.




We’re fully aware of the need for commercial building projects to be completed on time and on budget, so we’re committed to achieving this for you. With 30 years experience you can be confident you’re in safe hands with Terra Firma. Commercial services include:

  • Extensions
  • Reconfigurations
  • Renovations and refurbishing

We’re happy to discuss your requirements, and one of the partners - Michael and David Nevin - will always be on hand from the start to the finish of your project.



We’re experienced in a range of church-specific building projects having been a trusted contractor for the Diocese of Westminster for some 25 years. We work with a highly skilled team of specialist subcontractors covering trades including stonemasonry, fine joinery and lead work. A sample of our services:

  • Internal reconfigurations
  • Full renovations
  • Full specialist redecorations

Each project is closely supervised by one of the partners at all times to ensure the work is completed to the highest standard.


The personal touch of a family business is brought to bear on your project with partners Michael or David always directly involved backed by skilled professionals. Ask to see past work we’ve completed for other satisfied customers. Here’s what we can offer:

  • Loft conversions
  • House extensions
  • Renovations

Along with the experience of the partners, we’ve assembled a team of experienced professionals who provide specialist trades as and when needed. This enables us to meet most of our customer’s requirements.

Case studies

St John Fisher Church • Harrow

Demolition of the existing and construction of a new sanctuary with internal alterations. This project involved demolishing the whole sanctuary and internal choir balcony whilst maintaining weekend services.

A temporary plywood screen was erected to the full height of the church to separate the bulk of the works from the church. After demolition works and foundations were completed a challenging brickwork project got underway needing 80,000 bricks. Several arches, curved walls and features were built. The roof presented another challenge involving the creation of a quarter sphere for the ceiling of the apse.

Internally the sanctuary floor was rebuilt and finished with a limestone tile, a new stone altar was erected, also an ambo, tabernacle plinth and baptismal font. A large crucifix with fine art painting on each side was hung above the altar, and a new stained glass window was the final showpiece for a beautiful finish.

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Fullers Road • Woodford

Single Story Rear Extension. This extension was an unusual shape accessed by a narrow side alley. The flat roof had a glazed window full width of the extension to allow plenty of light in. Steps led from the dining room down into the kitchen which had an island unit as a focal point. A new block pavior patio and fencing complimented the finish.

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Church of the Transfiguration • London

Internal Reordering of the Church including new church hall, toilets, lift, balcony, vesting room and entrance. New portico entrance and complete redecoration of church including new flooring. This was a challenging, but rewarding project to work on. Stage 1: A new ground and first floor was created with steel beams inside the entrance creating a parish hall on the first floor and an attractive entrance with Doric style columns. A large gallery/balcony cantilevered over columns into the church was created with a rose window above. Externally, a new red brick arched portico was built with Bath stone steps and a ramp for disabled access. Stage 2: This was the internal refurbishment of the church. It included the installation of a new stone altar, shrines, confessional, wood and vinyl flooring, redecoration and fine artistry.

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Wellfield Avenue • Muswell Hill, London

Large loft conversion, new roof, rear extension, new windows throughout, full internal renovation including installation of Lutron lighting system. This was the complete reordering of the internal ground floor layout involving lowering the floor to the rear of the house level with external patio. A new loft conversion, creation of au pair quarters and four bespoke bathrooms and underfloor heating. A beautifully designed garden complimented the build.

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Holy Trinity Church • Hammersmith, London

Refurbishment of ground and first floor halls, toilets and kitchen including lift installation.

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St Monica’s Priory • Hoxton, London

Renovation and reordering of presbytery and parish centre. This project was approached in two stages with the basement being completed first creating temporary accommodation for the residents while the upstairs was being renovated. An brick extension was built to the rear. The basement became the parish centre with kitchen, toilets and meeting rooms while the upper floors were refurbished. The 1st, 2nd and 3rd floors were divided so that each Father had a their own living quarters with their own bathroom and sitting room, as well as a communal sitting room and dining room. The brick cleaning to the front elevation along with the new stonework, repointing and new traditional sash windows help to make this building a beautiful sight in Hoxton Square.

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Teignmouth Road • Cricklewood, London

Installation of 40 new windows, new fascias and gutters, new ensuite to ground floor, redecorations, link between houses, new block paved driveway. This job involved moving the Fathers from their rooms and back in again after each room was finished. The windows were all large sliding sash double glazed units. A new ground floor en-suite was created for an elderly priest.

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Devonshire Gardens • Winchmore Hill, London

Loft Conversion creating new bedroom and bathroom. This loft conversion has a Juliet balcony and railing which gives it a Mediterranean feeling in the summer.

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Contact Us

Get in touch

020 8360 3011


Terra Firma Building Contractors LLP
63 Berkeley Gardens, Winchmore Hill,
London N21 2BE

Company number: OC345326  |  VAT number: 864 5075 08

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