The Ratio Design & Build Limited Logo

The Ratio Design & Build Limited


Services and skills

  • Builder

    22 skills

    Brick / Concrete Structural Repairs


    Concrete Garages



    Diamond Drilling

    Extensions / Conversions

    Fire and Flood Renovation


    Garage Conversions

    Garden Studios

    General Building

    Green Oak Framing

    Loft Conversions

    New Builds

    Partition Walls

    Project Management


    Structural Design

    Structural Steels

    Suspended Ceilings

    Sustainable Construction

  • Plumber

    1 skill

    Water Mains Specialist (Pipe Replacement, Moling and Lead Pipes)

  • Roofer

    28 skills

    Asphalt Roofing Installation

    Balcony Roofing Installation

    Chimney Cowlings Installation

    Chimneys Installation

    Dormer / Roof Windows

    Dry Ridge Installation

    Dry Verge Installation

    Felt Roofing Installation

    Fibre Glass Roofing Installation

    Flat Roofing Installation

    Glass Roof Installation

    Green Roofing Installation

    Hot Melt Roofing Installation

    Leadworks Installation

    Metal Roofing Installation

    Moss Removal

    Pitched Roofing Installation

    Polycarbonate Roofing Installation

    Ridged Tiles Installation

    Roof Lights Installation

    Roof Replacement

    Roofing Repairs

    Rubber Roofing Installation

    Single Ply Membrane Roofs Installation

    Slate Roof Installation

    Slate / Tiled Roofing Installation

    Tiled Conservatory Roof Installation

    Warm Roof Construction

  • Services

    4 services

    • Domestic Work
    • Commercial Work
    • Free Estimates (excl. Insurance)
    • Insurance Work Undertaken


Customer reviews

Overall ratingin last 12 months

10Write a review
  • Workmanship10 out of 10
  • Tidiness10 out of 10
  • Reliability10 out of 10
  • Courtesy10 out of 10
Write a review

160 Total Reviews

The reviews below represent customers' views and not the views of Checkatrade

  • Bottom to top home renovations. Including loft conversation, additional bedroom with en-suite.

    10Verified Review

    Cannot fault The Ratio Design and Build company run by both Manny and Sherif. Start to finish the company and their team displayed immaculate focus to detail, providing professional advice and working with us to ensure we delivered a value for money project given the current affordability challenges. The scoped works included: loft conversion, additional bedroom and bathroom including plumbing, carpentry, electrics and cosmetic works through the rest of the property, removal of a wall for open plan kitchen space, new kitchen and porch construction.

    Location: TW5
  • A full home refurbishment

    10Verified Review

    Honestly, after struggling to find the right team to renovate my home to exactly how I wanted to I came across the ratio design via Instagram and reached out for a quote, a really helpful individual contacted me and we got things rolling, they did everything to perfection, from the kitchen to the bathrooms, my home looks incredible and has exceeded my expectations. Would give them 10/10 and recommend them to anyone who needs work done. Thank you to the whole team for their help ??

    Location: HA5
  • Loft Conversion

    10Verified Review

    We are really happy with our loft conversion. We were living-in during most of the build with two small children and Sherif (owner) and his team did their best to make the experience as enjoyable as possible. Sherif and I developed a great relationship, he is honest, considerate and works hard to deliver the results you want. As always with a build some things didn’t go perfectly to plan but I could rely on Sherif to ensure they were rectified quickly. Sherif was someone who I felt I could trust and that is a huge factor in any venture. Thanks again and wishing The Ratio Design and Build

    Location: TW11
  • Lack of responsiveness and professionalism

    1Verified Review

    I asked Manny for a revised quote and he said he can start at the beginning of April. It's the 9th of May and I don't even have the revised quote. I also appointed the building regulations company he suggested. On the other hand a couple of weeks ago I had a company that was ready with the quote within 5 working days (as promised), all agreed within a week and they just started working today. With the benefit of hindsight, if you have to keep chasing a builder at the quote stage, draw your conclusions.

    Location: W12
  • Renovation

    10Verified Review

    We met with Manny and discussed our project which involved a full downstairs renovation, including bathrooms, utility and kitchen. Manny was very thorough in going through every aspect of the renovation and provided us with a quote for all the works in good time. He helped us source all the sanitary ware for the bathrooms. He also put us in touch with the correct people for our kitchen. His team were very professional. Not only was the work completed to a high standard but The Ratio Design and Build were competitively priced! Would highly recommend!

    Location: UB2
  • Renovation

    3Verified Review

    Dealt with Manny, seemed nice at first. Turned out to be a huge time-waster and was unprofessional. We had a quote agreed which he decided to completely ignore and then. He tried to send me one of the most ridiculous contracts I've ever seen. Poor communication throughout with a lot of chasing on my side; I had the house cleared out and ready for him to start work-now it's just a mess and I'm looking elsewhere. I would not recommend.

    Location: UB1

Company profile

  • OwnerMr Manpreet Badesha
  • Member Since2023
  • Public Liability InsuranceVerified
  • AccreditationsChecked
  • AddressChecked
  • IdentityChecked
  • Checkatrade T&C'sSigned
  • VATYes: 258 2525 91
  • Company typeLtd Company

Company info

The Ratio Design & Build was created to provide high quality building services and packages tailored to our clients needs. It places customer’s requirements at the heart of what it does.

Our expert, responsive and close-knit team will walk you through the whole construction process — from a visionary idea and design, to successful completion and high level aftercare, and everything in between - including filing for planning permission if necessary. Our many years of experience mean we’re able to offer a full and complete range of services ensuring that we will manage your project from beginning to end, offering continued support throughout to make it as stress free and enjoyable as possible. We have our very own 4500 sq ft state of the art showroom in West London where we welcome you to discuss project details, and view our displays. We know your peace of mind is a key ingredient to the success of any project and we have the experience, expertise and skill to prioritise that. We remain transparent with all of our business dealings and we only use industry recognised JCT contracts. 

All work carried out is completed to current building regulations ensuring full compliance.

Services we offer:

  • Loft conversions
  • Extensions
  • New Builds
  • All types of large residential, commercial refurbishment and renovation works.
  • Design & planning permission applications.
  • In house kitchen, bathroom, living spaces design, supply and installation.
  • CAD Rendered images to visualise your space

Our highly experienced team consists of:

  • Project managers
  • Architects 
  • Foremen
  • Support staff
  • CAD designer
  • Kitchen, Bathroom & living space designer.

Please note we do not offer immediate start dates. All start dates are booked in once estimates and contracts have been finalised.

All work undertaken is fully insured and guaranteed. We also offer a Free No Obligation Quote! Contact us today

Contact details

Accreditations and awards