Triangle Construction

Triangle Construction, Edgware, Middlesex, HA8 8UQ


23 Warwick Avenue,


Tel: 02089583117
Mobile: 07877694900

When calling, please remember to say you got their number from the FMB website

Member details

Joined: 27/09/2011


We are an established and vibrant company based in Edgware who has completed a lot of extensions, loft conversions and refurbishments in London in recent years delivering exceptional costumer satisfaction and value for money.


We offer

·         Great value for money-with no hidden costs.

·         Guaranteed work-10 years guarantee.

·         We are a member of FMB including Masterbond.

·         Our clients are happy to speak to you to confirm our reputation.

·         Project manager and structure engineer on site throughout the building process.

·         Designer if needed to help you decide.

·         All trades are fully qualified.

·         We have Liability Insurance to give you the peace of mind.

  If you would like to know more about our company we would be happy to carry out a free assessment, quotation and arrange for you to visit one of our completed projects local to you.




Extension + refurbishment


We have recently finished a complete refurbishment of our house. We would like to thank Altin and his team for the fantastic job they did. The standard and quality of their work was very high with a great attention to detail. Altin is very reliable and wants to do the best possible job. The whole team was extremely considerate, helpful, polite, tidy and hard working. Many of our neighbours commented on how nice they were! We have recommended Altin to other friends and would highly recommend him to anyone who is planning to have work done on their house. We will not hesitate to use Altin and his team again in the future. Maria and Edoardo, Teddington.

Loft conversion


"We cannot recommend Triangle Construction highly enough. I first thought to ask for a quote because I had been passing one of their sites on my walk to work, a pretty extensive side extension and total reworking of the existing build, and noted how the workers always were respectful of passers by during works, pausing to let them past and acknowledging them (and the works of course looked very well done and were being progressed diligently). Ours was a loft extension, which necessitated similar sensitivity, in that we remained living at our property during works. Triangle's personnel at every level were always considerate, hard working and talented at their jobs. Altin, the [Director] of Triangle is everything anyone concerned about builders needs to put their minds at ease. He is quietly confident, unflappable no matter what the challenge, clearly experienced and full of practical solutions, always taking what you have to say seriously. Altin has a top team and manages them well between Triangle's various jobs. Triangle's sensitivity to close urban redevelopment considerations was brilliant. My neighbour commented on many occasions that he has never seen such tidy builders, with the tools and materials at the front of my property always kept in good order and debris removed as it accumulated. We are delighted with the results. The utility of every part of our loft and the stairs has been maximised and everyone from visitors to the neighbour's party wall surveyor had said how great it looks, seamless with the existing build. The loft looks light and open during the day and at night; the bathroom a pleasure to experience. We would certainly use Triangle again.

Case Studies

Double storey extension and renovation


These are some photos of a double storey extension in Edgware.

Groung floor extension + refurbishment




This is what our client had to say about Triangle Construction.

What was great about working with Altin was his reliability and his commitment to doing the best possible job.  He only does one job at a time, so he is on site with his team every day pushing the job forward.  He has a real attention to detail, and on several occasions I know did work that wasn’t in the original scope because he felt it was the right thing to do.  He started and finished on time, and the big challenge for us was staying ahead of the decisions that he needed to get the job done. He was also really easy to work with – nothing, apart from the parking in Chiswick, was ever a problem.  He was not the cheapest, but we were really pleased with the work.  And importantly he stuck to his price.  The only extras were ones that really could not have been thought about up front (we opened up one of the ceilings to do the wiring to discover that more than half of the joists – from some previous builder – were not tied into the wall and all of that had to be replaced).  We have had no hesitation in recommending him to other friends, who have been equally delighted.

Martin- Chiswick



Side and rear ground floor extension + refurbishment



 This is what our client had to say for Triangle Construction:


We wish to thank Altin and his team for helping us creating a lovely family home. The project scope included building a rear and side ground floor extension, a small first floor extension and changing the lay-out of the house. Our five-bedroom house was completely re-wired, a new water and heating system was installed, a new en-suite bathroom was built and the house was re-furbished throughout.   Altin delivered high quality workmanship on time and within the set budget while paying attention to small details that make the big difference. Altin and his team worked very hard and were such a joy to interact with. We would warmly recommend Altin and his team.

Stephen & Christina, SW13


Member type

FMB member with TrustMark

  • Have signed the TrustMark license
  • Have had an inspection on a job in progress on joining and on a completed development every three years thereafter
  • Has a minimum of twelve months trading
  • Verified no un-discharged bankruptcies or relevant and outstanding County Court Judgments
  • Have passed credit checks, public record and director checks
  • Has Public and Employer (if applicable) Liability Insurance
  • VAT registration (if applicable)
  • Confirmation of business address/details
  • Triangle Construction has agreed to abide by the FMB Disputes Resolution and Complaints Procedures
  • Has signed up to the FMB Code of Practice
  • Can offer the suite of FMB Insurance warranty products for the domestic and commercial markets (contact the FMB Insurance office for rates)

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