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Green Building Companies in London

The average cost for green building ranges from $200,000 to $650,000.

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London / 50 mi
115 of 75 professionals
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Featured Reviews for Green Building Companies in London

McCarty Squared Inc.
Green Building Companies in London
Average rating: 5 out of 5 starsApril 6, 2026
“Thank you to the whole team at Mccarty Squared, Carisa and her team of helpers made us feel like we where number one,. My wife wanted this kitchen done for years, we couldn't be happier with the work completed. Me and My wife have had out dream kitchen Completed, and its is much nicer than what we thought we could have achieve on are own and from what we found looking at different options. The time Carissa had take with my wife with walk us through and help select the perfect product for us was very helpful, we never felt locked in to a single order forum witch is what we wanted. More than a few Revisions later this made our new kitchen posable. The built in bookcase project we had them do after was also very nice.”
Collab Contractors
Green Building Companies in London
Average rating: 5 out of 5 starsJanuary 9, 2025
“Collab did an amazing job on my home renovation! They were professions, detailed, and kept me updated throughout. The quality of work was outstanding, and they even finished ahead of schedule. Highly recommend!!!”
Duo Building Ltd.
Green Building Companies in London
Average rating: 5 out of 5 starsSeptember 6, 2018
“Old South Kitchen Renovation – The Story After 36 years in my Old South home, I was faced with doing a major renovation of the kitchen in order to do necessary upgrades. After considerable thought and a quite a few sleepless nights, I decided to combine the kitchen and dining room, thus opening up one whole side of the main floor. Therefore, I needed a renovation company that I felt I could trust absolutely…enter Patrick Malloy of Duo Building. When we initially met, I expressed my anxiety over such a major renovation but Pat assured me that Duo was used to the challenges of older homes; mine was built in 1937…and I would survive! Duo produced a floor plan, which worked perfectly. They also suggested several companies that I could consider for the cabinetry, flooring, work surfaces and appliances. The wall between the kitchen and dining room was removed, the counter space was expanded, the lower cupboards were replaced with deep, wide drawers, the upper cupboards were replaced with new cupboards and a floor to ceiling pantry, a range hood was added and a substantial island was incorporated into the design. New tile floors were laid at the front and back doors and a new hardwood floor was installed throughout the main space. A new tile backsplash, quartz counter top and sink, a granite slab topping the island, a beautiful, shiny, new faucet, and new lighting completed the renovation. Duo matches their staff with the client and assigned one carpenter, Norm, to my project. By most renovation standards, this was not a big, complicated project but it was quite detailed so their choice of carpenter was the very best; calm, methodical and detailed-oriented. The kitchen and dining room were dismantled, piece by piece, including the wall in between; the work site was cleaned up every day and the stove and refrigerator continued to be useable. Norm was on-site daily and always willing to address any questions or concerns that I had, review my options and/or explain why, if I didn’t have any! Alternatively, if a situation arose that required a deviation from the initial plan, I was always included in the discussion in order to reach the best solution i.e., the one that I was happy with. All the trades were coordinated through Norm and he kept me informed at all times. I was adamant about keeping as much of the character of the house as possible such as the original doorbell which was situated on the wall slated for demolition and had not worked for some time. Thanks to Keelan Malloy’s suggestion, I approached a local clock repair business, the doorbell mechanism was cleaned; it now works and has been relocated. No detail was too small to be accommodated. I requested the wiring for a future ceiling light be moved half an inch and it was done with no complaint. Shortly after completion of the renovation, I noticed an issue with the transition from the new tile flooring and the top of the basement stairs. I called Keelan, explaining my concern and the next day, the problem was fixed to my satisfaction. After the final walk-through, there was a very small wiring issue under the sink. The next day, it was fixed. In this way, my renovation proceeded smoothly and was completed in about three months, with surprisingly little stress. I cannot recommend Duo Building highly enough. The treatment I received from not only all the Duo personnel but also the companies employed by Duo, was professional, helpful and respectful. The quality of the workmanship, from the installation of the cabinetry, all the flooring and the hard surfaces to the re-installment of the curved mouldings, is first-rate. My trust in Duo Building was well placed and I would not consider using another company.”
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