https://www.4mark.co.uk/home daily 1.0 2026-01-18 https://images.squarespace-cdn.com/content/v1/5fc025bd6b97992eb5581122/4ecbf9a0-0b84-431d-a893-d9babc96bee2/Stairs+across+levels.jpg Home - Our aim is to make your vision a reality whilst ensuring minimal disruption and quality execution. For over 25 years we have focused on uplifting existing spaces, conversions and extensions - giving you more space, light and comfort for a happier healthy life. https://images.squarespace-cdn.com/content/v1/5fc025bd6b97992eb5581122/3b1c41ba-e02d-4682-9205-2217b8d1da0a/Living+Room.jpg Home https://images.squarespace-cdn.com/content/v1/5fc025bd6b97992eb5581122/a1602d37-eae2-491e-ab00-3cabb1b9ca2b/Kids+playroom.jpg Home https://images.squarespace-cdn.com/content/v1/5fc025bd6b97992eb5581122/8fae94bd-29bb-4f50-88c3-fe5990c8ea31/His%3AHer+Bathroom.jpg Home https://images.squarespace-cdn.com/content/v1/5fc025bd6b97992eb5581122/1b3da7ed-e56b-4d60-a624-8404e238df2d/Cocktail+cabinet.jpg Home - “Owing to the high standard of work and the good relationship throughout, we wouldn't hesitate to recommend 4Mark to anyone” — Gemma Hennessy https://images.squarespace-cdn.com/content/v1/5fc025bd6b97992eb5581122/1609683117164-X0FLTZOKAI2JQFCFN3DS/Consult+2.png Home https://images.squarespace-cdn.com/content/v1/5fc025bd6b97992eb5581122/1609682741326-7PZODNDIYYGCDFPKJPX1/Partner.png Home https://images.squarespace-cdn.com/content/v1/5fc025bd6b97992eb5581122/1609682947615-I2APBBSV88I0NRFNP8KW/Build.png Home https://www.4mark.co.uk/testimonials daily 0.75 2024-07-03 https://images.squarespace-cdn.com/content/v1/5fc025bd6b97992eb5581122/20b92c86-24cc-4510-94dc-e3e4768d0910/Stairs+across+levels.jpg Testimonials - Working with 4Mark was a hugely positive experience, We found the whole team to be kind, smart, careful and considerate. Communication was always straightforward and the foreman (on site) always kept us up to speed with what to expect and what was happening. We have recommended 4Mark to countless friends in Chiswick since they finished our home in 2023. I would be happy to show anyone around our home or talk on the phone to provide a more detailed reference. — Kirsty Cocker https://images.squarespace-cdn.com/content/v1/5fc025bd6b97992eb5581122/1610293904662-65F1MWPAWVZLX4QGF9PX/Hallways%2C+stairs.jpg Testimonials - “We used 4 Mark Construction to build our extension and reconfigure the ground floor. 4 Mark was incredibly professional. Any additional work we asked for was costed and agreed in advance and Mark was scrupulously fair in deducting things from the quote we subsequently decided not to have. The people working for him are excellent and their work is of the highest quality. We have already recommend 4 Mark to friends and would have no hesitation in recommending them to anyone.” — Mr Simpson https://images.squarespace-cdn.com/content/v1/5fc025bd6b97992eb5581122/1606651452238-0XB9LS4MXR172UIZYSC3/naomi-hebert-MP0bgaS_d1c-unsplash.jpg Testimonials - “4 Mark recently carried out a complete renovation of our house in Little Venice, which included structural works. The work was approached in an organised fashion and any issues that we raised were quickly addressed and received with good humour! We also valued the relationship that Mark developed with our architect during the project. My Partner and I lived at the property during the work which involved replacing three bathrooms and building work on every floor. We were very impressed with the builder's consideration and the house was left in as orderly a state as possible every day.” — Gemma Hennessey https://images.squarespace-cdn.com/content/v1/5fc025bd6b97992eb5581122/1610293959104-18XZJ8A2OA6NAHHE18RS/CF76F0C4-F749-4094-8039-0781DFFA4FD9.jpeg Testimonials - “I am a small developer specialising in the extension and refurbishment of high value houses in Chiswick. With exacting standards and a reputation for quality, it is essential that I employ a building company that is competent in all aspects of building. They must also be reliable, trustworthy, and able to complete a project on budget and on time. 4mark Construction Limited has now completed four major projects for me, each bigger than the last, and, in the main, has met those requirements. I enjoy working with Mark Monagle whose other qualities include good organisation of his team and a sense of humour. I would certainly give 4mark Construction the opportunity to work for me again and would not hesitate to recommend them.” — Michael Robson https://www.4mark.co.uk/services daily 0.75 2024-07-03 https://images.squarespace-cdn.com/content/v1/5fc025bd6b97992eb5581122/1609684639822-XSG8PEDW8CXV7ZZZMFED/image-asset.jpeg Services https://images.squarespace-cdn.com/content/v1/5fc025bd6b97992eb5581122/1609684531433-0SRZT2VVT4TCVO4D55RH/armin-djuhic-mcL2f-J74GY-unsplash.jpg Services https://images.squarespace-cdn.com/content/v1/5fc025bd6b97992eb5581122/1609684260388-NGUIJJTD9JFDCN0V24L3/aaron-huber-oMOx_wV6mLQ-unsplash.jpg Services https://images.squarespace-cdn.com/content/v1/5fc025bd6b97992eb5581122/1610291483982-H4U7YKZ7X0HYUKE44BVX/Consult+2.png Services https://images.squarespace-cdn.com/content/v1/5fc025bd6b97992eb5581122/1610291506861-3REUDAAL8IA8BAFPPWQG/Partner.png Services 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