Trade cover image

Blackstone Development Group Limited

9.6/10

Royston, Hertfordshire

£1,000 guarantee T&Cs apply

Checkatrade member since March 2026

Skills

  • Basement / Cellar Conversions
  • Cladding
  • Concrete Garages
  • Demolition
  • Equestrian Stable
  • Extensions / Conversions
  • Garage Conversions
  • Garden Studios

Customer Reviews

Write a review

9.6 /10

Based on 5 reviews over the past 12 months

Quality of work

9.6

Reliability

9.6

Communication

9.6

Reviews (5)

  • 10

    Builder

    Posted 6 days ago

    Lintel Installation

    Blackstone Developments were quick to respond to my request for a quotation for a new lintel to be retrofitted above a window, and provided excellent communication throughout the process. The work was carried out efficiently and to a very high standard, including clearing up nicely after the work was completed.
    Verified reviewerJob location: PE19
  • 10

    Builder

    Posted 26 October

    Lean too/timber side extension

    Outstanding work by Joe and his team on our wooden lean too/side extension. Joe and his team quoted us for two days work on the structure against the house. They not only completed the job to a high standard but stayed late to finish it properly - and even knocked a bit off the labour cost! A really honest and appreciated gesture with Christmas fast approaching! They were extremely courteous throughout, especially considering we had a newborn in the house, and the site was left very clean and tidy upon completion! Highly recommend these guys! Professional, reliable, honest.
    Job location: CB4
  • 10

    Extensions / Conversions

    Posted 23 October

    Garage conversion

    When looking for a tradesman I want quick clear communication and proactive ideas to help me achieve the desired outcome…Joe and his team delivered on all of the above when I engaged them to adapt my garage to accommodate solar panels and a Air Source Heat Pump…I wouldn’t hesitate to recommend Joe and his team…Thanks guys
    Verified reviewerJob location: SG1
  • 10

    Builder

    Posted 01 April

    Kitchen Renovation

    We used Blackstone Developments for our new kitchen space and are so happy we did! They supplied & installed our kitchen aswell as carrying out the renovation of the kitchen area. Joe was great in helping us design the kitchen and went out of his way to keep us up to speed throughout the whole process. We are over the moon with our new kitchen & would happily recommend Joe & the team to anyone wanting work done!
    Job location: SG8
  • 8

    Builder

    Posted 31 March

    New kitchen works in barn conversion

    Joe and his team carried out works to our house by stripping out the original kitchen and adapting the facade to include a new window. New acoustic boarding and insulation was added to the double height party wall and plastering and decs were carried out throughout the kitchen area along with plumbing and electrics for the kitchen. Our house is a barn conversion with lots of exposed timber so it was not a straight forward job. All of their works were done well and at a good price.
    Job location: SG8

Photos

Company Info

Owner

Mr Joseph Parker

Ltd Company

Member since 2026

VAT Registered

No

Cards AcceptedCommercial WorkDomestic WorkFree Estimates

Blackstone Developments is a full‑service building company delivering high‑quality workmanship across every aspect of residential and commercial construction. From kitchens and bathrooms to full renovations, extensions & garage conversions, we manage each project with precision, reliability, and a commitment to excellence.


Our team handles all building works — structural, interior, exterior, and finishing — ensuring every detail meets the highest standards. Whether it’s transforming a single room or undertaking a complete property overhaul, we provide a seamless service built on craftsmanship, transparency, and trust.


More tradespeople